A kind of polyurethane adhesive production draws material device

Abstract

The utility model discloses a kind of material extraction devices for polyurethane adhesive production, it is related to septum pump field with adhesive extraction, including pump body, the both sides of pump body are equipped with standpipe, the inner chamber of pump body is connected with the inner chamber of standpipe, the top end and bottom end of standpipe are connected with connecting pipe by flange, the end portion of connecting pipe close to standpipe is formed with protruding pipe, the outer wall middle section of the connecting pipe located above is integrally formed with the output pipe that protrudes outward, the outer wall middle section of the connecting pipe located below is integrally formed with the input pipe that protrudes outward, the inner periphery of protruding pipe is integrally formed with the limiting block that limits the blocking ball up-moving distance. The utility model is set up telescopic mechanism and limiting mechanism, can be disassembled after connecting pipe, blocking ball can be disassembled, to facilitate more comprehensive cleaning in turn, and spring is built-in in sleeve interior, spring and adhesive can be avoided to appear contact.

Description

Technical Field

[0001] This utility model relates to the field of diaphragm pumps for adhesive extraction, specifically a material extraction device for polyurethane adhesive production. Background Technology

[0002] Due to the high viscosity of polyurethane adhesives, diaphragm pumps are generally used for material extraction.

[0003] In the prior art, after the material extraction is completed, or when a different adhesive is used for material extraction, the inside of the device needs to be cleaned. To ensure thorough cleaning, a disassembly and cleaning method can be adopted. However, in the prior art, since the sealing ball is generally connected to the spring, it is not convenient to disassemble the sealing ball for thorough cleaning after disassembly. Utility Model Content

[0004] The purpose of this utility model is to provide a material extraction device for the production of polyurethane adhesives in order to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a material extraction device for polyurethane adhesive production, comprising a pump body, vertical pipes installed on both sides of the pump body, the inner cavity of the pump body being connected to the inner cavity of the vertical pipes, connecting pipes being connected to the top and bottom ends of the vertical pipes via flanges, a protruding pipe being formed at the end of the connecting pipe near the vertical pipe, an outwardly protruding output pipe integrally formed in the middle section of the outer wall of the upper connecting pipe, an outwardly protruding input pipe integrally formed in the middle section of the outer wall of the lower connecting pipe, a limiting block integrally formed on the inner circumference of the protruding pipe to restrict the upward movement distance of the sealing ball, the two ends of the inner wall of the connecting pipe being connected to the sealing ball via a telescopic mechanism, and a limiting mechanism being installed at the end of the sealing ball closest to it.

[0006] As a further improvement of this utility model: the sealing ball is located in the inner cavity of the protruding tube, and sealing rings supporting the sealing ball are installed at the top of the inner walls of both ends of the connecting tube below and at the top of the inner cavities of the two vertical tubes.

[0007] As a further embodiment of this utility model: the telescopic mechanism includes a sleeve fixedly installed at the bend in the inner wall of the connecting pipe, a sliding rod slidably installed on the inner wall of the sleeve extending to the outside of the sleeve, an upper limit plate integrally formed in the middle section of the outer wall of the sliding rod, the sealing ball being sleeved on the outer periphery of the sliding rod, and the upper limit plate being used to limit the top outer periphery of the sealing ball.

[0008] As a further embodiment of this utility model: the limiting mechanism includes a screw hole opened at the end of the sliding rod away from the sleeve, and a lower limiting plate extending through to the outside of the sliding rod is threadedly connected to the inner wall of the screw hole, and a hexagonal hole is opened at the center of the lower limiting plate.

[0009] As a further embodiment of this utility model: when the lower sliding rod is in the reset state, its bottom piston plate is located at the bottom of the inner wall of the sleeve; when the upper sliding rod is in the reset state, its bottom piston plate is located at the bottom of the inner wall of the sleeve; a spring is fixedly installed between the top of the upper sliding rod and the top of the inner wall of the sleeve; and a spring is fixedly installed between the bottom of the lower sliding rod and the top of the inner wall of the sleeve.

[0010] Compared with the prior art, the beneficial effects of this utility model are: 1. By setting up a telescopic mechanism and a limiting mechanism, the sealing ball can be removed after the connecting pipe is disassembled, which facilitates more thorough cleaning. In addition, the spring is built into the sleeve, which can prevent the spring from coming into contact with the adhesive. Attached Figure Description

[0011] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 This is a schematic diagram of the internal structure of this utility model; Figure 3 For the present utility model Figure 2 Enlarged view of a portion of point A in the middle; Figure 4 This is a schematic diagram of the internal structure of the telescopic mechanism at the top of this utility model; Figure 5 This is a schematic diagram of the internal structure of the telescopic mechanism shown below in this utility model.

[0012] In the diagram: 1. Pump body; 2. Vertical pipe; 3. Connecting pipe; 4. Protruding pipe; 5. Input pipe; 6. Output pipe; 7. Limiting block; 8. Hexagonal hole; 9. Sealing ring; 10. Sleeve; 11. Sliding rod; 12. Sealing ball; 13. Lower limit plate; 14. Upper limit plate; 15. Spring. Detailed Implementation

[0013] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0014] Please see Figures 1-5 In this embodiment of the present invention, a material extraction device for producing polyurethane adhesive includes a pump body 1, with vertical pipes 2 installed on both sides of the pump body 1. The inner cavity of the pump body 1 is connected to the inner cavity of the vertical pipes 2. The top and bottom ends of the vertical pipes 2 are connected to connecting pipes 3 via flanges. A protruding pipe 4 is formed at the end of the connecting pipe 3 near the vertical pipe 2. An outwardly protruding output pipe 6 is integrally formed in the middle section of the outer wall of the upper connecting pipe 3. An outwardly protruding input pipe 5 is integrally formed in the middle section of the outer wall of the lower connecting pipe 3. A limiting block 7 is integrally formed on the inner circumference of the protruding pipe 4 to limit the upward movement distance of the sealing ball 12. The two ends of the inner wall of the connecting pipe 3 are connected to the sealing ball 12 via a telescopic mechanism. A limiting mechanism is installed at the end of the sealing ball 12 closest to the connecting pipe 3.

[0015] In this embodiment: when the diaphragm pump is running, the sealing balls 12, which are in the same vertical position, open and close alternately to achieve unidirectional feeding. At this time, the adhesive enters the lower connecting pipe 3 through the input pipe 5 under negative pressure, and then enters the interior of a vertical pipe 2 through the lower connecting pipe 3. After that, it enters the upper connecting pipe 3 through the vertical pipe 2, and finally exits from the output pipe 6 to achieve the purpose of extracting the adhesive. During the operation of the diaphragm pump, the limit block 7 restricts the maximum upward movement distance of the sealing ball 12 to prevent the sealing ball 12 from moving excessively.

[0016] Please refer to this carefully. Figure 2 and Figure 3 The sealing ball 12 is located in the inner cavity of the protruding pipe 4. Sealing rings 9 that support the sealing ball 12 are installed at the top of the inner walls of both ends of the connecting pipe 3 below and at the top of the inner cavities of the two vertical pipes 2.

[0017] In this embodiment: when the sealing ball 12 is in the reset state, the outer periphery of the sealing ball 12 is in close contact with the sealing ring 9, so that the purpose of unidirectional feeding or unidirectional discharging can be achieved.

[0018] Please refer to this carefully. Figure 3 , Figure 4 and Figure 5The telescopic mechanism includes a sleeve 10 fixedly installed at the bend in the inner wall of the connecting pipe 3. A sliding rod 11 is slidably installed on the inner wall of the sleeve 10, extending to the outside of the sleeve 10. An upper limit plate 14 is integrally formed in the middle section of the outer wall of the sliding rod 11. A sealing ball 12 is sleeved on the outer periphery of the sliding rod 11. The upper limit plate 14 is used to limit the top outer periphery of the sealing ball 12. When the lower sliding rod 11 is in the reset state, the piston plate at its bottom end is located at the bottom end of the inner wall of the sleeve 10. When the upper sliding rod 11 is in the reset state, the piston plate at its bottom end is located at the bottom end of the inner wall of the sleeve 10. A spring 15 is fixedly installed between the top of the upper sliding rod 11 and the top end of the inner wall of the sleeve 10. A spring 15 is fixedly installed between the bottom of the lower sliding rod 11 and the top end of the inner wall of the sleeve 10.

[0019] In this embodiment: When the diaphragm pump is running and sucking material inward, the lower sealing ball 12 moves upward under suction. The sealing ball 12 pulls the sliding rod 11 upward through the limiting mechanism. When the sliding rod 11 moves upward, the lower spring 15 is compressed. When the diaphragm pump runs in reverse, the spring 15 resets, assisting the sealing ball 12 in resetting. When discharging material outward, the upper sealing ball 12 is pushed upward by the force. The sealing ball 12 pushes the sliding rod 11 upward through the limiting mechanism. When the sliding rod 11 moves upward, the upper spring 15 is compressed. When the diaphragm pump runs in reverse, the spring 15 resets, and the sealing ball 12 is reset. It should be noted that the left and right sets of blocking balls 12 open alternately to ensure that the left and right vertical pipes 2 feed and discharge materials alternately (that is, when one vertical pipe 2 is feeding materials, the other vertical pipe 2 is discharging materials).

[0020] Please refer to this carefully. Figure 3 The limiting mechanism includes a threaded hole at the end of the sliding rod 11 away from the sleeve 10. The inner wall of the threaded hole is threaded with a lower limiting plate 13 that extends through to the outside of the sliding rod 11. A hexagonal hole 8 is provided at the center of the lower limiting plate 13.

[0021] In this embodiment: after the material extraction is completed, if it is necessary to stop the machine or change the type of material to be extracted, the bolts connecting the connecting pipe 3 and the vertical pipe 2 are removed. Then, the connecting pipe 3 can be pulled upward to separate it from the vertical pipe 2. Then, a hex wrench is used to connect with the hexagonal hole 8. After that, the hex wrench is rotated to remove the lower limit plate 13. After the lower limit plate 13 is removed, the sealing ball 12 can be removed and the inside of the device is cleaned to avoid any residue.

[0022] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A material extraction device for producing polyurethane adhesives, comprising a pump body (1), characterized in that, Vertical pipes (2) are installed on both sides of the pump body (1). The inner cavity of the pump body (1) is connected to the inner cavity of the vertical pipe (2). The top and bottom ends of the vertical pipe (2) are connected to connecting pipes (3) through flanges. A protruding pipe (4) is formed at the end of the connecting pipe (3) near the vertical pipe (2). An outwardly protruding output pipe (6) is integrally formed in the middle section of the outer wall of the upper connecting pipe (3). An outwardly protruding input pipe (5) is integrally formed in the middle section of the outer wall of the lower connecting pipe (3). A limiting block (7) is integrally formed on the inner circumference of the protruding pipe (4) to limit the upward movement distance of the sealing ball (12). The two ends of the inner wall of the connecting pipe (3) are connected to the sealing ball (12) through a telescopic mechanism. A limiting mechanism is installed at the end of the sealing ball (12) near the end.

2. The material extraction device for polyurethane adhesive production according to claim 1, characterized in that, The sealing ball (12) is located in the inner cavity of the protruding tube (4), and the top of the inner walls of both ends of the connecting tube (3) below, as well as the top of the inner cavities of the two vertical tubes (2), are all equipped with sealing rings (9) to support the sealing ball (12).

3. The material extraction device for polyurethane adhesive production according to claim 2, characterized in that, The telescopic mechanism includes a sleeve (10) fixedly installed at the bend in the inner wall of the connecting pipe (3). A sliding rod (11) extending through the outside of the sleeve (10) is slidably installed on the inner wall of the sleeve (10). An upper limit plate (14) is integrally formed in the middle section of the outer wall of the sliding rod (11). The sealing ball (12) is sleeved on the outer periphery of the sliding rod (11). The upper limit plate (14) is used to limit the top outer periphery of the sealing ball (12).

4. The material extraction device for polyurethane adhesive production according to claim 3, characterized in that, The limiting mechanism includes a threaded hole at one end of the sliding rod (11) away from the sleeve (10), and a lower limiting plate (13) extending through to the outside of the sliding rod (11) is threaded onto the inner wall of the threaded hole. A hexagonal hole (8) is provided at the center of the lower limiting plate (13).

5. The material extraction device for polyurethane adhesive production according to claim 4, characterized in that, When the lower sliding rod (11) is in the reset state, its bottom piston plate is located at the bottom of the inner wall of the sleeve (10). When the upper sliding rod (11) is in the reset state, its bottom piston plate is located at the bottom of the inner wall of the sleeve (10). A spring (15) is fixedly installed between the top of the upper sliding rod (11) and the top of the inner wall of the sleeve (10). A spring (15) is fixedly installed between the bottom of the lower sliding rod (11) and the top of the inner wall of the sleeve (10).

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