A组份胶吸入并增至高压，B组份胶吸入、送至比例泵增压，A、B组份相对流量由调
Component a glue is inhaled and increased to high pressure, component B glue is inhaled and sent to the proportional pump for pressurization, and the relative flow of components a and B is adjusted from
比机构确定，然后同时送入混合器，充分混合后后到达涂胶枪，对需要密封的地方涂胶。
The ratio mechanism is determined, and then it is sent to the mixer at the same time. After full mixing, it finally reaches the glue gun and applies glue to the places to be sealed.
比例泵出口处设有放泄阀，冲胶时泄压用（应将B组份放泄阀打开）。
A relief valve is set at the outlet of the proportional pump for pressure relief during glue flushing (the component B relief valve shall be opened).
混合器上设有单向阀，防止A、B组份胶互串，将通道固化堵塞；七天左右应将混合器及其单向阀清洗一次。
The mixer is equipped with a one-way valve to prevent the glue of components a and B from connecting with each other and blocking the channel; The mixer and its check valve shall be cleaned once in about seven days.
3.2 SYT-4型双组份打胶机气动工作原理
3.2 pneumatic working principle of syt-4 two-component glue applicator
SYT-4型双组份打胶机以压缩空气为动力。压缩空气在这里有两个作用：一是推动A、B泵的气动马达运动和调比机构动作（由A泵带动）；二是控制A、B组份泵的升降、进（脱）桶。
Syt-4 two-component gluer is powered by compressed air. Compressed air has two functions here: one is to drive the pneumatic motor of pumps a and B and the ratio adjustment mechanism (driven by pump a); The second is to control the lifting and unloading of component A and B pumps.
整机设有一个总开关（G3/4铜球阀）；A、B泵各自有一个开关；A、B泵升降机由各自的手动转阀(即控制箱面板上升降阀)控制，有“升”、“停”、“降”三个工位；压盘上有一个手动进气阀和一个放气开关(G1/4铜球阀)。
The whole machine is equipped with a main switch (G3 / 4 copper ball valve); A. Each pump B has a switch; A. Pump B elevator is controlled by respective manual rotary valve (i.e. the rising and falling valve on the control box panel), which has three stations of "rising", "stopping" and "falling"; There is a manual air inlet valve and a vent switch (G1 / 4 copper ball valve) on the pressure plate.
3.3A泵、B泵工作原理
3. Working principle of 3A pump and B pump (see Fig. 4 and Fig. 5)
A泵和B泵均为双作用式气动液压增压泵。A泵为机械换向机构，工作原理为：气动马达从顶部进入压缩空气后，气缸活塞移动到气缸上或下接近端部时，与气活塞连接的活塞杆压缩换向弹簧，弹簧积蓄能量，活塞继续前行，到一定位置，换向机构在弹簧的作用下，瞬时推动配气换向装置换向，从而使气动马达气缸中的活塞作稳定连续的往复运动。气缸活塞的力，作用于液压泵中的柱塞。由于气缸活塞的面积比液压泵中的面积大，因而使吸入的胶增压，增压后的胶通过泵座的接头输出。

Both pump a and pump B are double acting pneumatic hydraulic booster pumps. Pump a is a mechanical reversing mechanism. Its working principle is as follows: after the pneumatic motor enters compressed air from the top, when the cylinder piston moves up or down close to the end of the cylinder, the piston rod connected with the gas piston compresses the reversing spring, the spring accumulates energy, the piston continues to move forward to a certain position, and the reversing mechanism instantaneously pushes the reversing device of gas distribution under the action of the spring, Thus, the piston in the pneumatic motor cylinder makes a stable and continuous reciprocating motion. The force of the cylinder piston acts on the plunger in the hydraulic pump. Since the area of the cylinder piston is larger than that of the hydraulic pump, the inhaled rubber is pressurized, and the pressurized rubber is output through the joint of the pump base.
B泵为差压式机械换向机构，工作原理为：气动马达从顶部进入压缩空气，如进入气缸下腔，则上腔与大气连通，压缩空气作用于活塞的力（为气缸面积的一半，因为要除去占气缸一半面积的柱塞杆的面积），使活塞带动液压泵中的活塞杆及柱塞向上运动，当气缸活塞移动到气缸上接近端部时，与气活塞连接的柱塞杆压缩换向弹簧，弹簧积蓄能量，活塞继续前行，到一定位置，换向机构在弹簧的作用下，瞬时推动配气换向装置换向，从而使压缩空气同时进入气缸的上腔和下腔。
Pump B is a differential pressure mechanical reversing mechanism. Its working principle is: the pneumatic motor enters the compressed air from the top. If it enters the lower chamber of the cylinder, the upper chamber is connected with the atmosphere. The force of the compressed air acting on the piston (half of the cylinder area, because the area of the plunger rod accounting for half of the cylinder area should be removed) causes the piston to drive the piston rod and plunger in the hydraulic pump upward, When the cylinder piston moves to the cylinder near the end, the plunger rod connected with the gas piston compresses the reversing spring, the spring accumulates energy, and the piston continues to move forward to a certain position. Under the action of the spring, the reversing mechanism instantaneously promotes the reversing of the gas distribution reversing device, so that the compressed air enters the upper and lower cavities of the cylinder at the same time.
由于上腔有效面积是下腔有效面积的两倍，因而压缩空气作用于活塞上端的力大于下端，则活塞带动液压泵中的活塞杆及柱塞向下运动，气缸活塞移动到气缸下接近端部时，与气活塞连接的柱塞杆压缩换向弹簧，弹簧积蓄能量，活塞继续前行，到一定位置，换向机构在弹簧的作用下，瞬时推动配气换向装置换向。这样，实现了活塞的往复运动。
Since the effective area of the upper chamber is twice that of the lower chamber, the force of compressed air on the upper end of the piston is greater than that on the lower end, the piston drives the piston rod and plunger in the hydraulic pump to move downward. When the cylinder piston moves to the lower end of the cylinder, the plunger rod connected with the gas piston compresses the reversing spring, the spring accumulates energy, and the piston continues to move forward to a certain position, Under the action of the spring, the reversing mechanism instantaneously pushes the valve reversing device to reverse. In this way, the reciprocating motion of the piston is realized.
B泵的作用是向比例泵输送向上吸入时所需要的胶。因此，比例泵吸入时，B泵则运动；比例泵压出时，B泵则不能运动。所以，双组份打胶机正常工作时，则B泵为间断式运动（不能连续运动）。
The function of pump B is to deliver the glue required for upward suction to the proportional pump. Therefore, when the proportional pump sucks in, pump B moves; When the proportional pump is pressed out, pump B cannot move. Therefore, when the two-component glue applicator works normally, pump B moves intermittently (not continuously).