[0036] Specific implementation one:
[0037] see figure 1 , 4 , 5, the device for pumping the polystyrene particle slurry according to the present invention includes: a hopper 1, a hydraulic cylinder (not shown in the figure), a hydraulic cylinder shaft 3 (also called a push rod 3), a feeding bin 4, a piston body 5. Piston tail pipe 6, feed port cover 7, feed port 8, material cylinder 9, discharge port 10, discharge port cover 11, conveying pipe connection port 12, discharge bin 13. Among them, the hydraulic cylinder 2, the discharge port cover 11, the conveying pipe connection port 12, and the discharge bin 13 are in figure 1 not visible in, see Figure 4 or Figure 5. The hopper 1 is arranged above the feeding bin 4 and communicates with the feeding bin 4. Two through holes are provided on the left side wall of the bin 4 for the hydraulic cylinder shaft to pass through. The hydraulic cylinder 2 is fixedly installed on the left side of the feeding bin 4. on the wall. The number of hydraulic cylinders can be selected as one or more according to the requirements of the size of the pumped slurry, and at the same time, the corresponding material cylinder 9 and its internal pumping device can be selected as one or more.
[0038] For one pumping route in which one hydraulic cylinder is installed, the material cylinder 9 (reference numeral 9 in the figure indicates the material cylinder on the other pumping route) communicates with the feed bin 4 . After the installation is completed, a part of the hydraulic cylinder shaft 3 and the piston tail pipe 6 are located in the hollow interior of the material cylinder 9 . The discharge bin 13 communicates with the right side of the material cylinder 9 , and a discharge port 10 is provided at the connection between the two, and the discharge port 10 is arranged on the left side wall of the discharge bin 13 . The discharge port 10 is sealed by the discharge port cover 11 hinged on the left side wall of the discharge bin 13, and the discharge port cover 11 is hinged on the left side wall of the discharge bin 13 through the hinge shaft 22 (see Figure 7 ), when the discharge port cover 11 is opened, the slurry enters the discharge bin 13 from the discharge port 10 . The outlet cover 11 may also be provided with a return torsion spring 24 connected with the hinge shaft 12 (see Figure 7 ), the discharge port cover 11 is far from the discharge port 10 and is located in the discharge bin 13 by the lever arm 21 hinged by the hinge shaft 22 on the side near the center of the discharge cover, and one end of the lever arm 21 passes through the hinge shaft 22 It is hinged with the side wall of the discharge bin 13, the other end is hinged with the central part of the discharge cover 11 through the pin 25, and the torsion spring 24 is arranged on the lever arm 21, see Image 6 , 7 , the two torsion sections 243 of the torsion spring 24 pass through the hinge shaft 22 , the two torsion sections 243 are located on both sides of the lever arm respectively, and the torsion spring end 244 of the torsion spring 24 abuts on the side wall of the discharge bin 13 , the torsion spring longitudinal section 242 of the torsion spring 24 extends along the lever arm 21, and the torsion spring transverse section 241 of the torsion spring 24 is pressed on the lever arm 21, so that the torsion spring 24 applies a restoring force to the discharge port cover 11 to make the discharge port The cover 11 closes the outlet 10 . A handle 23 can be provided on the discharge port cover 11, and the handle 23 is used to manually open the discharge port cover 11 for maintenance.
[0039] figure 1 Two pumping routes with two material cylinders 9 are shown in the figure, and it is not difficult to understand that the other pumping route has the same composition as the above-mentioned route.
[0040] like figure 2 , 3 As shown, the piston tail pipe 6 of the present invention has a hollow structure as a whole, and the left end of the piston tail pipe 6 has a through hole 4 for the push rod 3 to pass through. The tube 16 can be integrally formed, the diameters of the two can be the same, and the diameter of the hollow tube body at the through hole 4 can be slightly larger than that of the hollow tube 16 to form a step therebetween. The interval between the right end of the hollow tube 16 and the convex ring 20 is the stroke of the feed port cover 7 (including the shock pad 18 and the sealing pad 19 ) that can reciprocate. The short side ends of the four 7-shaped ribs are fixedly connected to the hollow tube body at the through hole 4, and the long side ends of the 7-shaped ribs are fixedly connected to the piston mounting ring 17, thereby forming the hollow tube 16 in the hollow. In the hollow body, the shock-absorbing pad 18 , the feed port cover 7 and the sealing gasket 19 are fixedly installed on the end of the push rod 3 , and the feed port cover 7 can be driven by the push rod 3 to form a 7-shaped rib. The hollow body moves left and right. The diameter of the inlet cover 7 is substantially the same as that of the sealing cover 19 , and the diameter of the inlet cover 7 is larger than the diameter of the convex ring 20 . The convex ring 20 is formed along the piston mounting ring 17 by extending a distance, and together with the hollow hole of the piston mounting ring 17, the feed port 8 is formed. The diameter of the feed port 8 is smaller than that of the feed port cover 7, so that the feed port cover 11 is When pushing to the edge of the raised ring 20 , the feed port 8 is closed by the sealing gasket 19 . The long side of the 7-shaped rib is fixedly connected with the outer edge of the convex ring. Since the convex ring 20 has a certain thickness, the fixed connection of the long side of the 7-shaped rib and the outer edge of the convex ring does not hinder the movement of the feed port cover. The diameters of the inlet cover 7 and the shock-absorbing pad 18 are larger than the diameter of the hollow tube 16. After the push rod 3 drives the inlet cover 7 to the left to move the shock-absorbing pad 18 to the hollow tube 16, the Continue to move to the left to drive figure 2 All the components in the middle move to the left together, which drives the piston tail pipe 6 and the piston body 5 to move to the left. The piston body 5 is fixedly arranged on the outer periphery of the piston mounting ring 17 , and the piston body 5 is located at the outer periphery of the feed port 8 .
[0041] combined with Figure 2-5 , the slurry located in the circumferential direction of the piston tail pipe passes through the feed port 8 through the hollow part, the piston body 5 and the material cylinder 9 are arranged concentrically, and the piston body 5 and the material cylinder 9 are arranged concentrically. The circumferential inner wall of the piston is matched to form a pumping mechanism, the push rod 3 drives the piston tail pipe 6 and the piston body 5 to reciprocate in the material cylinder 9; one end of the piston tail pipe 6 has a supply for the push rod 3 The through hole 4 passed through has a feed port 8 for the slurry to pass through at the other end, the piston body 5 is fixedly arranged on the outer periphery of the feed port 8, and the middle part of the two ends of the piston tail pipe 6 is: Hollow structure, the push rod 3 is penetrated through the through hole 4 at the end of the piston tail pipe for the push rod to pass through and the hollow part of the hollow pipe 16 behind the center of the piston tail pipe, the feed port cover 7 is arranged at the end of the push rod 3 at the hollow part of the piston tail pipe, the feed port cover 7 is matched with the feed port 8 at the end of the piston tail pipe, the feed port The diameter of the cover 7 is larger than that of the feed port 8. When the push rod 3 pushes the feed port cover 7 (together with the sealing gasket 19) to the feed port 8, the feed port cover 7 completely covers At the feed port 8, the push rod 3 is stopped, (the convex ring 20 is in contact with the gasket 19), and the feed port cover 7 closes the feed port 8 through the gasket 19 at this time, and then the push rod Continued pushing of 3 can drive the piston body 5 and the piston tail pipe 6 (that is, drive the figure 2 All components in the material) move together in the material cylinder 9, so that the slurry in the material cylinder 9 is pumped along the moving direction of the push rod; when the push rod 9 is reversed away from the feed port 8, The feed port cover 7 is pulled away from the feed port 8 along with the push rod 3, and the feed port 8 is opened. At this time, the feed port 8 communicates with the hollow part of the piston tail pipe, located at the The slurry in the circumferential part of the piston tail pipe 6 can flow through the feed port 8 along the hollow part and the hollow part of the piston tail pipe 6 so as not to affect the final movement of the piston body 5 by the push rod 3 . When the feed port cover 7 at the end of the push rod 3 is pulled to the end of the hollow tube 16 of the piston tail pipe, the diameter of the feed port cover is also larger than the diameter of the through hole, so continue to pull The push rod 3, the shock pad 18 is in contact with the hollow tube 16, the piston tail pipe 6 will be pulled together by the feed port cover 7 on the push rod 3, and the piston tail pipe will drive the piston body 5 in the material cylinder. They are pulled together, and the slurry in the material cylinder 9 flows through the feed port 8 without being driven to the left by the piston body 5 .
[0042] Preferably, four connecting ribs are used to connect the end of the piston tail pipe with the push rod through hole and the end of the piston tail pipe with the piston body and the feed port to form a hollow structure, and other hollow hollow body connection structures can also be used. , as long as the middle part of the piston tail pipe is hollowed out, so that the slurry in the axial direction of the piston tail pipe 6 can enter the feed port 8 . The hollow body can be a cylinder or other shapes such as a square.
[0043] like Figure 4 As shown, a hydraulic cylinder 2 is provided on the side wall of the feeding bin 9 under the hopper 1, and the feeding cylinder 9 is communicated with the feeding bin 4. The slurry in the hopper 1 flows to the feeding bin 4 due to the action of gravity, and the figure 1 In the operating state shown, the slurry is filled to the left part of the piston 5 in the cylinder 9 . The hydraulic cylinder shaft 3 of the hydraulic cylinder 2 passes through the silo 4 through the inner hollow part of the piston tail pipe 6, and the feed port cover 7 is fixedly arranged at the end of the hydraulic cylinder shaft 3, and the feed port is located in the illustrated position. The cover 7 closes the feed opening 8 .
[0044] like Figure 4As shown, a special pumping device for polystyrene particle slurry, the slurry in the hopper 1 fills the part to the left of the piston body 5 of the material cylinder 9 due to the action of gravity. The discharge bin 13 is connected with the end of the material cylinder 9 close to the feed port 8, the hydraulic cylinder 2 is connected with the end of the push rod 3 away from the inlet end cover, or the hydraulic cylinder itself is directly connected. The hydraulic cylinder rod 3 is used as the push rod 3 , that is, the hydraulic cylinder rod 3 of the hydraulic rod is inserted into the hollow interior of the piston tail pipe, and the feed port cover 7 is provided at the end of the hydraulic cylinder rod 3 . The discharging bin 13 is provided with a discharging port 10 , a discharging port cover 11 and a conveying pipe connecting port 12 . The discharge port 10 is arranged at the end of the material cylinder 9, and the discharge port cover 11 is hinged inside the discharge bin 13. When the push rod 3 moves, the piston body 5 is pumped to the right. When feeding the slurry, the outlet cover 11 is opened with the movement of the slurry. When the push rod 3 moves in reverse to abut against the hollow tube 6, the piston body 5 moves to the left, and the outlet The cover is driven and closed by the reset torsion spring, the discharge port cover is provided with an auxiliary closing spring to assist the discharge port cover 11 to close the discharge port 10 when the push rod 3 moves in the reverse direction, and the auxiliary closing spring (torsion spring 24) assists The discharge port cover 11 closes the discharge port 10 .
[0045] The present invention utilizes the unique reciprocating working mode of the hydraulic cylinder to complete the pumping. Figure 4 The state diagram of pumping slurry into the discharge bin 13 is shown. The hydraulic cylinder 2 acts to move the push rod 3 to the right. As shown by the arrow in the figure, the push rod 3 drives the feed port cover 5 to move to the left to close the feed. 8, and further drives the piston body 5 to move to the right. At this time, the slurry on the right side of the piston body 5 in the material cylinder 9 is pumped to the right by the piston body 5, and the slurry in the hopper 1 is generated by the piston body 5. The negative pressure is sucked into the left side of the material cylinder 9. Since the piston body 5 is pumped to the right, the positive pressure causes the hinged outlet cover 11 to open to the right, and the positive pressure overcomes the gravity of the reset torsion spring and the outlet cover. The discharge port cover 11 is opened, and the slurry enters the discharge bin 13 through the discharge port 10, and then is output through the connection port 12 of the conveying pipe.
[0046] refer to Figure 5 , the hydraulic cylinder 2 moves to move the push rod 3 to the left, and the piston body 5 no longer pushes the slurry to produce a rightward force on the discharge port cover 11. Due to the action of the torsion spring 24 and the gravity of the discharge port cover 13 Etc., the discharge port cover 11 closes the discharge port 10, and the push rod 3 continues to move to the left, so that the inlet port cover 7 leaves the feed port 8, the feed port 8 is in an open state, and the material cylinder 9 is located on the left side of the piston body 5. The slurry enters the feed port 8 through the hollow hollow body of the piston tail pipe 6. When the feed port cover 7 at the end of the push rod 3 abuts against the hollow pipe 16, the push rod 3 drives the piston body 5 to move to the left. Ready for the next pumping of the slurry. As a result, the slurry in the hopper 1 is continuously output through the conveying pipe connection port 12 under the repeated operation of the hydraulic cylinder 2 .
