Extruder for PET packing belt production

Abstract

The utility model belongs to the technical field of packing belt production, and particularly relates to an extruder for PET packing belt production, which comprises an extruder main body, a cooling tank is mounted in the middle of the extruder main body; a motor is mounted at the end part of the cooling pool; the bottom wall of the cooling tank is fixedly connected with two groups of brackets; the middle part of the bracket is rotationally connected with a rotary drum; a belt is rotationally connected to the end part of the rotary drum, and the other end of the belt is rotationally connected to the output end of the motor; the outer wall of the cooling tank is fixedly connected with an oxygen pump; through cooperation of bubbles which can be continuously transferred upwards, after the bubbles move upwards and are broken, packing belts in the cooling pool can be evenly cooled, meanwhile, through cooperation of the rotating drum, the water flow speed in the cooling pool can be increased, the temperature uniformity of liquid in the cooling pool can be improved, and the temperature of the top of the cooling pool is reduced to be larger than that of the bottom of the cooling pool; and therefore, the packing belt is difficult to achieve an expected cooling effect.

Description

Technical Field

[0001] The utility model relates to the technical field of strapping tape production, in particular to an extruder for producing PET strapping tape. Background Art

[0002] PET strapping tape is a plastic product used for packaging. It is the most popular new environmentally friendly packaging material that replaces steel strapping, steel wire, and heavy-duty PP strapping tape. Its main component is polyethylene terephthalate, which has good insulation and friction resistance. It is commonly used in food and beverage, medicine, daily chemical products, electronic products, etc.

[0003] The extruder used in the production of PET strapping tape is an important production equipment. When making strapping tape, the PET plastic particles need to be heated, melted and extruded through a mold, and then transferred to a position near the top of the cooling pool for cooling before being reeled.

[0004] Through long-term observation, it is found that after the existing extruder transfers the formed strapping tape to the inside of the cooling pool, the liquid inside the cooling pool is usually in a static state, which makes the temperature at the top of the cooling pool higher than the temperature at the bottom, resulting in uneven temperature inside the cooling pool, and the strapping tape is difficult to achieve the expected cooling effect; therefore, in view of the above problem, an extruder for producing PET strapping tape is proposed. Utility Model Content

[0005] In order to make up for the deficiencies of the prior art and solve at least one technical problem raised in the background technology, the utility model proposes an extruder for producing PET strapping tape.

[0006] The technical solution adopted by the utility model to solve its technical problems is: the utility model describes an extruder for producing PET strapping tape, comprising an extruder body; a cooling pool is installed in the middle of the extruder body; a motor is installed at the end of the cooling pool; two groups of brackets are fixedly connected to the bottom wall of the cooling pool; a rotating drum is rotatably connected to the middle of the bracket; a belt is rotatably connected to the end of the rotating drum, and the other end of the belt is rotatably connected to the output end of the motor; an oxygen pump is fixedly connected to the outer wall of the cooling pool; a pump head is installed at the end of the oxygen pump, and the pump head is arranged inside the rotating drum.

[0007] Preferably, a shell is fixedly connected to the top of the bracket; a movable part is slidably connected to the middle of the shell; a connecting part is fixedly connected to the end of the movable part; two groups of connecting parts are fixedly connected to the middle of the movable part, and the connecting part is slidably arranged in the middle of the shell; a mesh plate is fixedly connected to the middle of the connecting part; a second top part is fixedly connected to the middle of the rotating drum, and the corresponding surfaces of the second top part and the connecting part are arranged in an arc shape.

[0008] Preferably, a support plate is fixedly connected to the inner wall of the cooling pool; a plurality of groups of springs are fixedly connected to the inner wall of the support plate; a scraper is fixedly connected to the end of the spring, and the middle part of the scraper is in contact with the belt; the middle part of the scraper is inclined.

[0009] Preferably, a plurality of groups of elastic ropes are fixedly connected to the inner wall of the scraper; a sphere is fixedly connected to the middle of the elastic rope, and the middle of the sphere is arranged close to the inclined surface of the scraper.

[0010] Preferably, two groups of support rods are rotatably connected to the middle of the mesh plate; and a counterweight block is fixedly connected to the bottom of the support rod.

[0011] Preferably, a plurality of groups of conduits are fixedly connected to the middle of the drum, and the conduits are connected to the drum.

[0012] Preferably, two groups of baffles are fixedly connected to the top of the mesh plate, and the middle part of the baffle is inclined.

[0013] The utility model is beneficial in that:

[0014] 1. The utility model discloses an extruder for producing PET strapping tape, which can evenly cool the strapping tape inside the cooling pool by cooperating with bubbles that can be continuously transferred upwards, so that after the bubbles move upwards and burst, the strapping tape inside the cooling pool can be evenly cooled. At the same time, the rotating drum can increase the water flow rate inside the cooling pool, improve the temperature uniformity of the liquid inside the cooling pool, and reduce the problem that the temperature at the top of the cooling pool is greater than the temperature at the bottom, which makes it difficult for the strapping tape to achieve the expected cooling effect.

[0015] 2. The extruder for producing PET strapping tape described in the utility model can further improve the water flow of the liquid inside the cooling pool and improve the uniformity of the temperature of the liquid inside the cooling pool by cooperating with the provided mesh plate. At the same time, the mesh plate can improve the cleanliness inside the extruder body, reduce the need for workers to frequently use external tools to filter and clean the liquid inside the cooling pool, and reduce the labor intensity of workers. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0017] Figure 1 It is a schematic diagram of the three-dimensional structure of the utility model;

[0018] Figure 2 It is a schematic diagram of the cooling pool structure in the utility model;

[0019] Figure 3 for Figure 2 A magnified image of point A;

[0020] Figure 4 It is a schematic diagram of the structure of the rotating drum in the utility model;

[0021] Figure 5 It is a schematic diagram of the mesh plate structure in the utility model;

[0022] Figure 6 It is a schematic diagram of the support plate structure in the utility model.

[0023] In the figure: 1. extruder body; 11. cooling tank; 12. motor; 13. bracket; 14. drum; 15. belt; 16. oxygen pump; 17. pump head; 2. shell; 21. movable part; 22. first top block; 23. connecting part; 24. mesh plate; 25. second top piece; 3. support plate; 31. spring; 32. scraper; 4. elastic rope; 41. sphere; 5. support rod; 51. counterweight; 6. conduit; 7. baffle. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0025] like Figure 1 , 2As shown in Figures 3, 4 and 6, an extruder for producing PET strapping tape comprises an extruder body 1; a cooling pool 11 is installed in the middle of the extruder body 1; a motor 12 is installed at the end of the cooling pool 11; two groups of brackets 13 are fixedly connected to the bottom wall of the cooling pool 11; a rotating drum 14 is rotatably connected to the middle of the bracket 13; a belt 15 is rotatably connected to the end of the rotating drum 14, and the other end of the belt 15 is rotatably connected to the output end of the motor 12; an oxygen pump 16 is fixedly connected to the outer wall of the cooling pool 11; a pump head 17 is installed at the end of the oxygen pump 16, and the pump head 17 is arranged inside the rotating drum 14; when working, the staff needs to install the extruder body 1 in the working area, transfer an appropriate amount of PET plastic particles to the inside of the extruder body 1, and heat and extrude the granular material, by arranging the motor 11 inside the cooling pool 11 2. Then, after turning on the motor 12 and the oxygen pump 16, the oxygen pump 16 will transfer the external oxygen to the end of the pump head 17 and discharge it. The output end of the motor 12 can drive the drum 14 to rotate under the action of the belt 15, and cooperate with the multiple holes in the middle to disperse the gas discharged from the end of the pump head 17. Under the action of buoyancy, the generated bubbles will float upward and contact the cooled packaging belt. This step cooperates with the bubbles that can be continuously transferred upward, so that after the bubbles move upward and burst, the packaging belt inside the cooling pool 11 can be evenly cooled. At the same time, the rotating drum 14 can increase the water flow rate inside the cooling pool 11, improve the temperature uniformity of the liquid inside the cooling pool 11, and reduce the temperature at the top of the cooling pool 11 to be greater than the temperature at the bottom, which makes it difficult for the packaging belt to achieve the expected cooling effect.

[0026] like Figure 2 , 3As shown in Figure 5, the top of the bracket 13 is fixedly connected to the shell 2; the middle of the shell 2 is slidably connected to a movable member 21; the end of the movable member 21 is fixedly connected to a connecting member 23; two groups of connecting members 23 are fixedly connected to the middle of the movable member 21, and the connecting member 23 is slidably arranged in the middle of the shell 2; a mesh plate 24 is fixedly connected to the middle of the connecting member 23; a second top member 25 is fixedly connected to the middle of the rotating drum 14, and the corresponding surfaces of the second top member 25 and the connecting member 23 are arranged in an arc shape; when working, by arranging the second top member 25 in the middle of the rotating drum 14, the rotating drum 14 will synchronously drive the second top member 25 to rotate during the rotation process, and the position of the second top member 25 will gradually approach the middle of the first top block 22, and cooperate with the arc surface of the two at the same time. At this time, the first top block 22 will be pushed upward by the second top member 25 The movable part 21 and the connecting part 23 will move upward synchronously, and the unfolded mesh plate 24 can promote the rapid movement of the liquid in the cooling pool 11, and the mesh plate 24 will collect and clean some impurities attached to the liquid during the movement. After the second top piece 25 is away from the middle of the movable part 21, the first top block 22 will be reset under the overall downward gravity of the mesh plate 24. This step can further enhance the flow of the liquid in the cooling pool 11 and improve the uniformity of the liquid temperature in the cooling pool 11. At the same time, the mesh plate 24 can improve the cleanliness of the inside of the extruder body 1, reduce the need for staff to frequently use external tools to filter and clean the liquid in the cooling pool 11, and reduce the labor intensity of staff.

[0027] like Figure 6 As shown, the inner wall of the cooling pool 11 is fixedly connected with a support plate 3; the inner wall of the support plate 3 is fixedly connected with a plurality of springs 31; the end of the spring 31 is fixedly connected with a scraper 32, and the middle part of the scraper 32 is in contact with the belt 15; the middle part of the scraper 32 is inclined; when working, by arranging the support plate 3 on the inner wall of the cooling pool 11, the scraper 32 in contact with the middle part of the belt 15 will scrape off the impurities accumulated in the middle part of the belt 15 during the working process of the belt 15, and at the same time, under the action of friction, the scraper 3 2 The spring 31 in the middle will be in a slightly deformed state, and after the belt 15 stops moving, the middle of the scraper 32 will shake under the action of the spring 31's restoring elastic force, and some agglomerated impurities will sink to the bottom of the cooling pool 11. This step and the scraper 32 can improve the cleanliness of the middle of the belt 15, reduce the long-term accumulation of a lot of impurities in the middle of the belt 15, cause the impurities to corrode the middle of the belt 15, and cause the middle of the belt 15 to harden or be damaged over a long period of time, thereby improving the service life of the belt 15.

[0028] like Figure 6As shown, the inner wall of the scraper 32 is fixedly connected to multiple groups of elastic ropes 4; the middle part of the elastic rope 4 is fixedly connected to a sphere 41, and the middle part of the sphere 41 is arranged close to the inclined surface of the scraper 32; when working, by arranging multiple spheres 41 on the inner wall of the scraper 32, under the action of the inertia of the scraper 32, the sphere 41 will pull the middle part of the elastic rope 4 to deform, and the sphere 41 will hit the inclined inner wall of the scraper 32. This step, combined with the impact force generated by the movement of the sphere 41 and the inclined surface in the middle part of the scraper 32, can improve the cleanliness of the contact surface between the scraper 32 and the belt 15, reduce the problem that it is difficult to clean the connection surface between the scraper 32 and the belt 15 by only relying on the shaking scraper 32, and improve the stability of the scraper 32 during subsequent work.

[0029] like Figure 5 As shown, the middle part of the mesh plate 24 is rotatably connected with two groups of support rods 5; the bottom of the support rods 5 is fixedly connected with a counterweight block 51; when working, by arranging two groups of counterweight blocks 51 in the middle part of the mesh plate 24, when the second top piece 25 is away from the first top piece 22, the mesh plate 24 can be driven to move downward under the action of the gravity of the two groups of counterweight blocks 51. This step, together with the two groups of counterweight blocks 51, can reduce the problem of the low downward movement speed of the mesh plate 24 in the cooling pool 11 due to the large buoyancy inside the cooling pool 11, and improve the stability of the reciprocating motion of the mesh plate 24 in the cooling pool 11.

[0030] like Figure 4 As shown, a plurality of groups of conduits 6 are fixedly connected to the middle of the drum 14, and the conduits 6 are connected to the drum 14; during operation, by arranging a plurality of groups of conduits 6 in the middle of the drum 14, the gas inside the drum 14 is discharged from the output ends of the plurality of groups of extended conduits 6. This step cooperates with the arranged conduits 6 to reduce the problem of more impurities entering the drum 14, and the extended conduits 6 can improve the uniformity of the rising of bubbles.

[0031] like Figure 5 As shown, two groups of baffles 7 are fixedly connected to the top of the mesh plate 24, and the middle part of the baffle 7 is inclined. When working, two groups of baffles 7 are arranged on the top of the second top member 25, so that when the mesh plate 24 moves upward, the two groups of symmetrical baffles 7 will block part of the water flow. This step cooperates with the two groups of baffles 7 to reduce the problem of part of the water flow dispersing to the surroundings under the force of the mesh plate 24 rising when the mesh plate 24 moves upward.

[0032] The working principle is as follows: after the extruder body 1 is installed in the working area, an appropriate amount of PET plastic particles are transferred to the inside of the extruder body 1, and the particle materials are heated and extruded. A motor 12 is arranged inside the cooling pool 11, and then the motor 12 and the oxygen pump 16 are turned on, and the oxygen pump 16 transfers the external oxygen to the end of the pump head 17 and discharges it. The output end of the motor 12 can drive the drum 14 to rotate under the action of the belt 15, and cooperate with the multiple holes in the middle to disperse the gas discharged from the end of the pump head 17. Under the action of buoyancy, the generated bubbles will float upward and be discharged into the cooled pump. The second top piece 25 is provided in the middle of the rotating drum 14, so that the rotating drum 14 can synchronously drive the second top piece 25 to rotate during the rotation process, and the position of the second top piece 25 will gradually approach the middle of the first top block 22, and cooperate with the arc surface between the two. At this time, the first top block 22 will be lifted up by the second top piece 25, and the movable member 21 and the connecting member 23 will move upward synchronously, and cooperate with the unfolded mesh plate 24 to promote the liquid inside the cooling pool 11 to move quickly, and the mesh plate 24 will collect and clean some impurities attached to the liquid during the movement, and the second top piece 25 and the middle of the movable member 21 are far away from each other. Under the downward gravity of the mesh plate 24 as a whole, the first top block 22 will be reset. By arranging a support plate 3 on the inner wall of the cooling pool 11, the scraper 32 in contact with the middle of the belt 15 will scrape off the impurities accumulated in the middle of the belt 15 during the working process of the belt 15. At the same time, under the action of friction, the spring 31 in the middle of the scraper 32 will be in a slightly deformed state. After the belt 15 stops moving, the middle of the scraper 32 will shake under the action of the resetting elastic force of the spring 31, and some of the agglomerated impurities will sink to the bottom of the cooling pool 11. By arranging a plurality of spheres 41 on the inner wall of the scraper 32, the scraper 32 will move. Under the action of inertia, the sphere 41 will pull the middle part of the elastic rope 4 to deform, and the sphere 41 will hit the inclined inner wall of the scraper 32. By arranging two groups of counterweight blocks 51 in the middle of the mesh plate 24, when the second top piece 25 is away from the first top piece 22, the two groups of counterweight blocks 51 can drive the mesh plate 24 to move downward under the action of gravity. By arranging multiple groups of conduits 6 in the middle of the drum 14, the gas inside the drum 14 will be discharged from the output ends of the multiple groups of extended conduits 6. By arranging two groups of baffles 7 on the top of the second top piece 25, when the mesh plate 24 moves upward, the two groups of symmetrical baffles 7 will block part of the water flow.

[0033] The above shows and describes the basic principle, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments, and the above embodiments and descriptions are only for explaining the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, and these changes and improvements fall within the scope of the utility model to be protected.

Claims

1. An extruder for producing PET strapping tape, comprising an extruder body (1); a cooling pool (11) is installed in the middle of the extruder body (1); characterized in that: A motor (12) is installed at the end of the cooling pool (11); two groups of brackets (13) are fixedly connected to the bottom wall of the cooling pool (11); a rotating drum (14) is rotatably connected to the middle of the bracket (13); a belt (15) is rotatably connected to the end of the rotating drum (14), and the other end of the belt (15) is rotatably connected to the output end of the motor (12); an oxygen pump (16) is fixedly connected to the outer wall of the cooling pool (11); a pump head (17) is installed at the end of the oxygen pump (16), and the pump head (17) is arranged inside the rotating drum (14).

2. The extruder for producing PET strapping tape according to claim 1, characterized in that: The top of the bracket (13) is fixedly connected to a shell (2); a movable part (21) is slidably connected to the middle of the shell (2); a connecting part (23) is fixedly connected to the end of the movable part (21); two groups of connecting parts (23) are fixedly connected to the middle of the movable part (21), and the connecting parts (23) are slidably arranged in the middle of the shell (2); a mesh plate (24) is fixedly connected to the middle of the connecting parts (23); a second top part (25) is fixedly connected to the middle of the rotating drum (14), and the corresponding surfaces of the second top part (25) and the connecting part (23) are arranged in an arc shape.

3. The extruder for producing PET strapping tape according to claim 1, characterized in that: A support plate (3) is fixedly connected to the inner wall of the cooling pool (11); a plurality of groups of springs (31) are fixedly connected to the inner wall of the support plate (3); a scraper (32) is fixedly connected to the end of the spring (31), and the middle part of the scraper (32) is in contact with the belt (15); the middle part of the scraper (32) is inclined.

4. The extruder for producing PET strapping tape according to claim 3, characterized in that: The inner wall of the scraper (32) is fixedly connected with a plurality of groups of elastic ropes (4); a sphere (41) is fixedly connected to the middle of the elastic rope (4), and the middle of the sphere (41) is arranged close to the inclined surface of the scraper (32).

5. The extruder for producing PET strapping tape according to claim 2, characterized in that: Two groups of support rods (5) are rotatably connected to the middle of the mesh plate (24); a counterweight block (51) is fixedly connected to the bottom of the support rod (5).

6. The extruder for producing PET strapping tape according to claim 1, characterized in that: A plurality of groups of conduits (6) are fixedly connected to the middle of the rotating drum (14), and the conduits (6) and the rotating drum (14) are connected.

7. The extruder for producing PET strapping tape according to claim 2, characterized in that: Two groups of baffles (7) are fixedly connected to the top of the mesh plate (24), and the middle part of the baffles (7) is inclined.

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