Liquid silica gel extrusion molding equipment

Abstract

The utility model discloses liquid silica gel extrusion molding equipment, which relates to the technical field of silica gel production and comprises a gel melting box, the upper end of the gel melting box is communicated with a conveying pipe, the upper end of the conveying pipe is communicated with a feeding hopper, the inner walls of the two sides of the feeding hopper are provided with fixing grooves, and a sieve plate is arranged between the two fixing grooves. Springs are symmetrically and fixedly connected to the positions, close to the two ends, of the upper end face of the screen plate, the upper ends of the springs are fixedly connected with the upper end groove wall of the fixing groove, and a vibrating mechanism is arranged in the feeding hopper and located below the screen plate and comprises a cam and a first rotating shaft which is rotationally connected to the interior of the feeding hopper. The problems that in the prior art, the silica gel raw materials are likely to be blocked and accumulated in the conveying process, due to the fact that a sieve plate is not provided with a vibration mechanism, blocked particles cannot be cleared away in time, the silica gel raw materials cannot smoothly pass through the sieve plate, and the conveying efficiency of the silica gel raw materials is improved are solved. And the production efficiency is influenced.

Description

Technical Field

[0001] This utility model relates to the field of silicone production technology, specifically a liquid silicone extrusion molding equipment. Background Technology

[0002] Silicone extrusion molding equipment is a basic piece of equipment in the rubber industry and one of the key pieces of equipment that affects product quality. It plays a very important role in the production process of tires and rubber products.

[0003] Chinese utility model patent CN210211289U discloses a melting and extrusion device for silicone production: it is equipped with a sieve plate, a conveying pipe, a drive wheel, a partition plate and a storage tank. When the conveying pipe feeds silicone raw material into the feeding hopper, the sieve plate filters out impurity particles inside the silicone raw material.

[0004] However, existing technologies still have shortcomings: silicone raw materials may become clogged and accumulate during the conveying process. Because the sieve plate lacks a vibration mechanism, it cannot promptly remove clogged particles, preventing the silicone raw material from passing smoothly through the sieve plate and impacting production efficiency. Utility Model Content

[0005] This invention aims to solve at least one of the technical problems existing in the prior art. To this end, this invention proposes a liquid silicone extrusion molding device, which solves the problem in the prior art where silicone raw materials may become clogged and accumulate during transportation. Because the sieve plate lacks a vibration mechanism, it cannot promptly remove clogged particles, causing the silicone raw material to be unable to pass smoothly through the sieve plate, thus affecting production efficiency.

[0006] To achieve the above objectives, this utility model proposes a liquid silicone extrusion molding device, comprising: a melting tank, a conveying pipe connected to the upper end of the melting tank, a feeding hopper connected to the upper end of the conveying pipe, fixing grooves on both inner walls of the feeding hopper, a screen plate installed between the two fixing grooves, springs symmetrically fixedly connected to the upper end face of the screen plate near both ends, the upper ends of the springs fixedly connected to the upper wall of the fixing grooves, a vibration mechanism provided inside the feeding hopper and below the screen plate, the vibration mechanism comprising a cam and a first rotating shaft, the first rotating shaft being rotatably connected inside the feeding hopper, one end of the first rotating shaft passing through one side of the feeding hopper and extending to the outside of the feeding hopper, a cam fixedly sleeved on the first rotating shaft, the cam abutting against the lower end face of the screen plate, a first motor fixedly installed on the outside of the conveying pipe, and a first belt drivingly connecting the output shaft of the first motor and the first rotating shaft.

[0007] As a further embodiment of this utility model: a sealing cover is hinged to the upper end of the feeding hopper, and a limiting groove is opened on the lower end face of the screen plate near both ends. A limiting rod is fixedly connected to the bottom of the fixed groove, and the limiting rod is adapted to the limiting groove and is embedded in the interior of the limiting groove.

[0008] As a further embodiment of this invention, the cam is elliptical in shape.

[0009] As a further embodiment of this utility model: a second rotating shaft is rotatably connected inside the conveying pipe, one end of the second rotating shaft passes through one side of the conveying pipe and extends to the outside of the conveying pipe, a second belt is connected between the output shaft of the first motor and the second rotating shaft, a drive shaft is fixedly sleeved on the second rotating shaft, and several partitions are fixedly connected in a ring array on the outside of the drive shaft, and a storage trough is opened between two adjacent partitions.

[0010] As a further embodiment of this utility model: a hot melt chamber is provided inside the melting box, a second motor is fixedly installed on the outside of the melting box, the output shaft of the second motor passes through one side of the melting box and is fixedly connected to a stirring shaft, a fixing block is symmetrically fixedly sleeved on the stirring shaft, and several stirring rods are fixedly connected to the outside of the fixing block.

[0011] As a further embodiment of this utility model: electric heating tubes are embedded inside the melting box and on both sides below the hot melt chamber. A heat-conducting copper plate is installed at the top of the electric heating tube. A glue storage chamber is opened at the bottom of the melting box. A connecting pipe is connected between the glue storage chamber and the hot melt chamber. A valve is installed on the connecting pipe.

[0012] As a further embodiment of this utility model: a discharge pipe is connected to the lower end of the melting tank, and support plates are symmetrically and fixedly connected to the lower end of the melting tank.

[0013] Compared with the prior art, the beneficial effects of this utility model are:

[0014] The output shaft of the first motor drives the first rotating shaft and cam to rotate via the first belt. The rotation of the cam can vertically reciprocate to push the screen plate. When the screen plate moves upward, the spring is compressed. After the pushing force of the cam is removed, the screen plate is pushed downward by the spring's rebound force, allowing the cam to continue pushing. The vibration mechanism can generate high-frequency vibration, clearing the particles clogging the screen plate. Through vibration, the accumulation state of the particles changes, thereby loosening the clogging particles and allowing them to pass smoothly through the screen plate. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of this utility model;

[0016] Figure 2 This is a schematic diagram of the internal structure of the present invention;

[0017] Figure 3 This utility model Figure 2 Enlarged view of part A.

[0018] In the diagram: 1. Feeding hopper; 101. Fixing groove; 102. Limiting rod; 103. Spring; 2. Conveying pipe; 3. Melting tank; 4. Support plate; 5. Discharge pipe; 6. Sealing cover; 7. Second motor; 8. First motor; 9. First belt; 10. First rotating shaft; 11. Second rotating shaft; 12. Second belt; 13. Screen plate; 131. Limiting groove; 14. Cam; 15. Partition plate; 16. Drive shaft; 17. Stirring shaft; 18. Fixing block; 19. Heat-conducting copper plate; 20. Electric heating tube; 21. Glue storage chamber; 22. Connecting pipe; 23. Hot melt chamber. Detailed Implementation

[0019] The technical solution of this utility model will be clearly and completely described below with reference to the embodiments. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0020] like Figure 1-3 As shown, a liquid silicone extrusion molding device includes: a melting tank 3, the upper end of which is connected to a conveying pipe 2, and the upper end of the conveying pipe 2 is connected to a feeding hopper 1.

[0021] A sealing cover 6 is hinged to the upper end of the feeding hopper 1. Fixed grooves 101 are provided on both inner walls of the feeding hopper 1. A screen plate 13 is installed between the two fixed grooves 101. A limiting groove 131 is provided on the lower end face of the screen plate 13 near both ends. A limiting rod 102 is fixedly connected to the bottom of the fixed groove 101. The limiting rod 102 is adapted to the limiting groove 131 and is embedded in the interior of the limiting groove 131. The function of the limiting rod 102 is to prevent the screen plate 13 from deviating from its direction when moving vertically. Springs 103 are symmetrically fixedly connected to the upper end face of the screen plate 13 near both ends. The upper end of the springs 103 is fixedly connected to the upper end wall of the fixed groove 101.

[0022] Open the sealing cover 6, put the silicone raw material into the feeding hopper 1, and the conveying pipe 2 will transport the silicone raw material into the melting tank 3. When the conveying pipe 2 is feeding the silicone raw material into the feeding hopper 1, the impurity particles inside the silicone raw material are filtered through the sieve plate 13.

[0023] To prevent potential blockages and accumulation of silicone raw materials during transportation, a vibration mechanism is installed inside the feeding hopper 1 and below the screen plate 13. The vibration mechanism includes a cam 14 and a first rotating shaft 10. The first rotating shaft 10 is rotatably connected inside the feeding hopper 1. One end of the first rotating shaft 10 passes through one side of the feeding hopper 1 and extends to the outside of the feeding hopper 1. The cam 14 is fixedly sleeved on the first rotating shaft 10. The cam 14 is elliptical in shape and abuts against the lower end face of the screen plate 13 so that the rotation of the cam 14 can drive the screen plate 13 to move vertically back and forth.

[0024] A first motor 8 is fixedly installed on the outside of the conveying pipe 2, and a first belt 9 is connected between the output shaft of the first motor 8 and the first rotating shaft 10.

[0025] When the first motor 8 is started, the output shaft of the first motor 8 drives the first rotating shaft 10 and the cam 14 to rotate via the first belt 9. The rotation of the cam 14 can push the screen plate 13 vertically back and forth. When the screen plate 13 moves upward, the spring 103 is compressed. After the screen plate 13 is no longer pushed by the cam 14, it is pushed downward by the rebound force of the spring 103, so that the cam 14 can continue to push the cam 14.

[0026] The conveying pipe 2 is rotatably connected to a second rotating shaft 11. One end of the second rotating shaft 11 passes through one side of the conveying pipe 2 and extends to the outside of the conveying pipe 2. The output shaft of the first motor 8 is connected to the second rotating shaft 11 by a second belt 12. A drive shaft 16 is fixedly sleeved on the second rotating shaft 11. Several partitions 15 are fixedly connected to the outside of the drive shaft 16 in a ring array. A storage trough is opened between two adjacent partitions 15.

[0027] The output shaft of the first motor 8 drives the first rotating shaft 10 to rotate via the second belt 12. The first rotating shaft 10 drives the drive shaft 16 and several partitions 15 to rotate. When feeding, the silicone raw material falls into the storage tank. By rotating the partitions 15 driven by the first rotating shaft 10, the silicone raw material inside the storage tank can be poured out, thereby realizing the orderly feeding of silicone raw material by the conveying pipe 2.

[0028] The melting tank 3 has a hot melt chamber 23 inside. A second motor 7 is fixedly installed on the outside of the melting tank 3. The output shaft of the second motor 7 passes through one side of the melting tank 3 and is fixedly connected to a stirring shaft 17. Fixing blocks 18 are symmetrically fixedly sleeved on the stirring shaft 17. Several stirring rods are fixedly connected to the outside of the fixing blocks 18.

[0029] Electric heating tubes 20 are embedded inside the melting box 3 and on both sides below the hot melt chamber 23. A heat-conducting copper plate 19 is installed at the top of the electric heating tube 20. A glue storage chamber 21 is opened at the bottom of the melting box 3. A connecting pipe 22 connects the glue storage chamber 21 and the hot melt chamber 23. A valve is installed on the connecting pipe 22.

[0030] The lower end of the melting tank 3 is connected to the discharge pipe 5, and the lower end of the melting tank 3 is symmetrically and fixedly connected to the support plate 4.

[0031] When the silicone raw material falls into the hot melt chamber 23, the electric heating tube 20 is turned on, and the heat from the electric heating tube 20 is transferred to the bottom of the hot melt chamber 23 through the heat-conducting copper plate 19. The second motor 7 is then turned on, and the output shaft of the second motor 7 drives the stirring shaft 17 to rotate. The stirring shaft 17 drives the fixed block 18 and the stirring rod outside the fixed block 18 to rotate, thus thoroughly stirring the silicone raw material. The valve on the connecting pipe 22 is then opened, and the liquid silicone enters the storage chamber 21 for storage and can be discharged through the discharge pipe 5.

[0032] The above description provides a detailed account of one embodiment of the present invention. However, this description is merely a preferred embodiment and should not be construed as limiting the scope of the present invention. All equivalent variations and improvements made within the scope of the claims of the present invention should still fall within the patent coverage of the present invention.

Claims

1. A liquid silicone extrusion molding device, characterized in that, include: A melting tank (3) is connected to a conveying pipe (2) at its upper end. The upper end of the conveying pipe (2) is connected to a feeding hopper (1). The inner walls of both sides of the feeding hopper (1) are provided with fixing grooves (101). A screen plate (13) is installed between the two fixing grooves (101). Springs (103) are symmetrically fixed to the upper end face of the screen plate (13) and near both ends. The upper end of the springs (103) is fixed to the upper end wall of the fixing groove (101). A vibrator is installed inside the feeding hopper (1) and below the screen plate (13). The vibration mechanism includes a cam (14) and a first rotating shaft (10). The first rotating shaft (10) is rotatably connected inside the feeding hopper (1). One end of the first rotating shaft (10) passes through one side of the feeding hopper (1) and extends to the outside of the feeding hopper (1). The cam (14) is fixedly sleeved on the first rotating shaft (10). The cam (14) abuts against the lower end face of the screen plate (13). A first motor (8) is fixedly installed on the outside of the conveying pipe (2). A first belt (9) is connected between the output shaft of the first motor (8) and the first rotating shaft (10).

2. The liquid silicone extrusion molding equipment according to claim 1, characterized in that, The upper end of the feeding hopper (1) is hinged with a sealing cover (6), and a limiting groove (131) is opened on the lower end face of the sieve plate (13) near both ends. A limiting rod (102) is fixedly connected to the bottom of the fixed groove (101). The limiting rod (102) is adapted to the limiting groove (131) and the limiting rod (102) is embedded in the interior of the limiting groove (131).

3. The liquid silicone extrusion molding equipment according to claim 1, characterized in that, The cam (14) is elliptical.

4. The liquid silicone extrusion molding equipment according to claim 1, characterized in that, The conveying pipe (2) is rotatably connected to a second rotating shaft (11). One end of the second rotating shaft (11) passes through one side of the conveying pipe (2) and extends to the outside of the conveying pipe (2). The output shaft of the first motor (8) is connected to the second rotating shaft (11) by a second belt (12). A drive shaft (16) is fixedly sleeved on the second rotating shaft (11). Several partitions (15) are fixedly connected to the outside of the drive shaft (16) in a ring array. A storage trough is opened between two adjacent partitions (15).

5. The liquid silicone extrusion molding equipment according to claim 1, characterized in that, The melting tank (3) has a hot melt chamber (23) inside. A second motor (7) is fixedly installed on the outside of the melting tank (3). The output shaft of the second motor (7) passes through one side of the melting tank (3) and is fixedly connected to a stirring shaft (17). A fixing block (18) is symmetrically fixedly sleeved on the stirring shaft (17). Several stirring rods are fixedly connected to the outside of the fixing block (18).

6. The liquid silicone extrusion molding equipment according to claim 5, characterized in that, Electric heating tubes (20) are embedded inside the melting box (3) and on both sides below the hot melt chamber (23). A heat-conducting copper plate (19) is installed at the top of the electric heating tube (20). A glue storage chamber (21) is opened at the bottom of the melting box (3). A connecting pipe (22) is connected between the glue storage chamber (21) and the hot melt chamber (23). A valve is installed on the connecting pipe (22).

7. The liquid silicone extrusion molding equipment according to claim 1, characterized in that, The lower end of the melting tank (3) is connected to the discharge pipe (5), and the lower end of the melting tank (3) is symmetrically fixedly connected to the support plate (4).

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