Polypropylene extrusion granulation template
By designing a polypropylene extrusion granulation template, rapid cooling and stable discharge of polypropylene granules were achieved using wind cooling and mechanical transmission, solving the problem of insufficient cooling in existing technologies and improving the forming and storage quality of granules.
Patent Information
- Application Number
- CN202520399486.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-10
- Publication Date
- 2026-01-13
- Estimated Expiration
- 2035-03-10
AI Technical Summary
Existing polypropylene extrusion granulation templates lack rapid cooling capabilities when processing into granules, which may cause the granules to deteriorate or be damaged during storage due to heat and humidity issues.
A polypropylene extrusion granulation template was designed, comprising components such as template, collecting pipe, air box, support, motor, and gears. Through wind cooling and mechanical transmission, the granules are rapidly cooled and stably discharged.
This ensures rapid cooling and stable storage after pellet formation, improving pellet quality and storage stability.
Smart Images

Figure CN223790798U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of inclined hole granulation template technology, specifically a polypropylene extrusion granulation template. Background Technology
[0002] Polypropylene is a semi-crystalline thermoplastic polymer made from propylene monomers through an addition polymerization reaction. In the production of plastic granulation templates, three heating modes are usually used to ensure production quality and efficiency: high-pressure steam heating, electrode heating, and heat transfer oil heating. Among them, electrode heating is mostly used for small plastic granulation templates due to its limitations; high-pressure steam heating is an early template heating process used for medium and large templates.
[0003] Regarding extrusion granulation templates, referring to patent publication number CN211891540U, a slanted hole granulation template for an extrusion granulator can allow the raw material in the middle of the granulation belt to come into contact with heat, thereby enabling this part of the raw material to be heated quickly and improving the melting efficiency of the raw material.
[0004] However, the above extrusion granulation templates do not have the function of rapidly cooling the granulated particles when processing polypropylene into granules. Therefore, the particles may deteriorate or be damaged due to heat and humidity issues during storage.
[0005] Therefore, we propose a polypropylene extrusion granulation template. Utility Model Content
[0006] (a) Technical problems to be solved
[0007] To address the shortcomings of existing technologies, this utility model provides a polypropylene extrusion granulation template, which overcomes the deficiencies of existing technologies and solves the problem that, in the above-mentioned extrusion granulation templates, when processing polypropylene into granules, there is no rapid cooling function for the formed granules. Therefore, the granules may deteriorate or be damaged due to heat and humidity issues during storage.
[0008] (II) Technical Solution
[0009] To achieve the above objectives, this utility model provides the following technical solution: a polypropylene extrusion granulation template, comprising a template, a collecting pipe fixedly installed on the lower surface of the template, a bellows fixedly installed on the left surface of the collecting pipe, a support fixedly installed on the right surface of the collecting pipe, a motor fixedly installed on the upper surface of the support, a gear rotatably arranged between the upper and lower inner walls of the support, a slot opened on the right surface of the collecting pipe, an air inlet opened on the left inner wall of the collecting pipe, an air outlet opened on the rear surface of the collecting pipe, a hopper rotatably arranged on the inner surface of the collecting pipe, several ribs fixedly connected to the inner surface of the hopper, a sliding plate fixedly connected to the outer surface of the hopper, toothed grooves opened on the outer surface of the hopper, and a discharge valve fixedly installed on the lower surface of the collecting pipe.
[0010] Preferably, support plates are fixedly connected to both the left and right sides of the lower surface of the collecting pipe, a cylinder is fixedly installed on the lower surface of the support plate, a sleeve is slidably provided on the lower surface of the discharge valve, and a support rod is fixedly inserted on both the left and right surfaces of the sleeve, with a push plate fixedly connected to the other end of the support rod.
[0011] Preferably, the inner surface of the collecting pipe is provided with a sliding groove that is slidably arranged in relation to the sliding plate, and the groove opening is arranged in relation to the gear.
[0012] Preferably, the output end of the motor is fixedly connected to the upper surface of the gear, the gear and the tooth groove are meshed, and the hopper, the collecting pipe and the discharge valve are correspondingly interconnected.
[0013] Preferably, the cylinder is fixedly connected to the upper surface of the corresponding push plate, and the sleeve and the discharge valve are horizontally aligned.
[0014] (III) Beneficial Effects
[0015] Compared with the prior art, the present invention provides a polypropylene extrusion granulation template, which has the following beneficial effects:
[0016] 1. This polypropylene extrusion granulation template, through the cooperation of the template body, collecting pipe, air box, support, motor, gear, slot, air inlet, air outlet, hopper, rib plate, slide plate, toothed groove, and discharge valve, can extrude polypropylene into granules, which are then collected in the hopper of the collecting pipe. The granules in the hopper are then rapidly cooled to ensure the quality of collection and storage after granulation.
[0017] 2. This polypropylene extrusion granulation template, through the cooperation of the support plate, cylinder, sleeve, strut, and push plate, can perform the unblocking and plugging work on the discharge valve. The sleeve, which moves up and down reciprocally, can unblock the particles falling from the discharge valve, thereby ensuring the stability of the discharge valve. Attached Figure Description
[0018] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0019] Figure 2 This is a three-dimensional structural diagram of the internal structure of the material collection pipe and its related components of this utility model;
[0020] Figure 3 This is an exploded view of the hopper and related structures of this utility model;
[0021] Figure 4 This is a three-dimensional structural diagram of the discharge valve and related structures of this utility model.
[0022] In the diagram: 1. Template body; 2. Material collection pipe; 3. Air box; 4. Support; 5. Motor; 6. Gear; 7. Groove; 8. Air inlet; 9. Air outlet; 10. Hopper; 11. Rib plate; 12. Slide plate; 13. Tooth groove; 14. Discharge valve; 15. Support plate; 16. Cylinder; 17. Sleeve; 18. Support rod; 19. Push plate. Detailed Implementation
[0023] 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.
[0024] Example 1
[0025] Please see Figures 1-3 A polypropylene extrusion granulation template includes a template body 1. A collecting pipe 2 is fixedly installed on the lower surface of the template body 1. A wind box 3 is fixedly installed on the left surface of the collecting pipe 2. A bracket 4 is fixedly installed on the right surface of the collecting pipe 2. A motor 5 is fixedly installed on the upper surface of the bracket 4. A gear 6 is rotatably arranged between the upper and lower inner walls of the bracket 4. A slot 7 is opened on the right surface of the collecting pipe 2. An air inlet 8 is opened on the left inner wall of the collecting pipe 2. An air outlet 9 is opened on the rear surface of the collecting pipe 2. A hopper 10 is rotatably arranged on the inner surface of the collecting pipe 2. Several rib plates 11 are fixedly connected to the inner surface of the hopper 10. A sliding plate 12 is fixedly connected to the outer surface of the hopper 10. A toothed groove 13 is opened on the outer surface of the hopper 10. A discharge valve 14 is fixedly installed on the lower surface of the collecting pipe 2.
[0026] Specifically, through the cooperation between the template body 1, the collecting pipe 2, the air box 3, the support 4, the motor 5, the gear 6, the slot 7, the air inlet 8, the air outlet 9, the hopper 10, the rib plate 11, the slide plate 12, the toothed groove 13, and the discharge valve 14, the granules formed by extruding polypropylene can be collected centrally through the hopper 10 of the collecting pipe 2, and the granules in the hopper 10 are rapidly cooled to ensure the quality of collection and storage after granulation.
[0027] In this embodiment: the inner surface of the collecting pipe 2 is provided with a sliding groove that is slidably arranged in relation to the sliding plate 12, and the groove opening 7 is arranged in relation to the gear 6.
[0028] Specifically, the hopper 10 is horizontally limited and slidable by the slide plate 12 in conjunction with the chute.
[0029] In this implementation scheme: the output end of the motor 5 is fixedly connected to the upper surface of the gear 6, the gear 6 is meshed with the tooth groove 13, and the hopper 10 is correspondingly interconnected with the collecting pipe 2 and the discharge valve 14.
[0030] Specifically, the motor 5 drives the gear 6 to rotate, which meshes with the tooth groove 13 to rotate, thereby rotating the hopper 10 inside the collection pipe 2.
[0031] Working principle: In the polypropylene processing extrusion granulation process, the material is extruded into granules through the template body 1 and then falls into the hopper 10 of the collection pipe 2. The discharge valve 14 is closed to concentrate the granules in the hopper 10. The motor 5 on the support 4 is started, and the motor 5 drives the gear 6 to rotate. The gear 6 meshes with the tooth groove 13 in the hopper 10 through the slot 7, thereby driving the hopper 10 to rotate in the collection pipe 2. The collection pipe 2 rotates horizontally and stably through the sliding plate 12 and the sliding groove. The granules are moved by the multiple ridge plates 11 on the hopper 10. The air box 3 is turned on to blow air into the collection pipe 2 through the air inlet 8 to quickly dry and cool the granules moved on the hopper 10. The exhaust is discharged through the air outlet 9 to ensure the quality of granule formation and storage. Then the discharge valve 14 is opened to discharge the granules from the hopper 10.
[0032] Example 2
[0033] Please see Figure 1 , Figure 4 Based on Embodiment 1, this utility model provides a technical solution:
[0034] In this embodiment: support plates 15 are fixedly connected to both the left and right sides of the lower surface of the collecting pipe 2, cylinders 16 are fixedly installed on the lower surface of the support plates 15, sleeves 17 are slidably provided on the lower surface of the discharge valve 14, and support rods 18 are fixedly inserted on both the left and right surfaces of the sleeves 17, and push plates 19 are fixedly connected to the other end of the support rods 18.
[0035] Specifically, through the cooperation between the support plate 15, cylinder 16, sleeve 17, support rod 18, and push plate 19, the discharge valve 14 can be unblocked. The sleeve 17, which moves up and down repeatedly, unblocks the particles falling from the discharge valve 14, thereby ensuring the stability of the discharge from the discharge valve 14.
[0036] In this embodiment: the cylinder 16 is fixedly connected to the upper surface of the corresponding push plate 19, and the sleeve 17 and the discharge valve 14 are horizontally corresponding.
[0037] Specifically, the cylinders 16 on both sides are started simultaneously, pushing the push plate 19 to move the support rod 18 and the sleeve 17 up and down to complete the reciprocating work.
[0038] Working principle: When the discharge valve 14 is opened to discharge material, the cylinders 16 on both sides of the support plate 15 are started at the same time. The cylinders 16 push the push plate 19 to move the support rod 18 and the sleeve 17 up and down. The sleeve 17 blocks the falling particles at the bottom of the discharge valve 14, which can ensure that the discharge valve 14 discharges material stably without affecting the quality of the particles.
[0039] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A polypropylene extrusion granulation template, comprising a template body (1), characterized in that: A material collection pipe (2) is fixedly installed on the lower surface of the template body (1). A bellows (3) is fixedly installed on the left surface of the material collection pipe (2). A bracket (4) is fixedly installed on the right surface of the material collection pipe (2). A motor (5) is fixedly installed on the upper surface of the bracket (4). A gear (6) is rotatably arranged between the upper and lower inner walls of the bracket (4). A slot (7) is opened on the right surface of the material collection pipe (2). An air inlet (8) is opened on the left inner wall of the material collection pipe (2). An air outlet (9) is opened on the rear surface of the material collection pipe (2). A hopper (10) is rotatably arranged on the inner surface of the material collection pipe (2). Several rib plates (11) are fixedly connected to the inner surface of the hopper (10). A sliding plate (12) is fixedly connected to the outer surface of the hopper (10). A toothed groove (13) is opened on the outer surface of the hopper (10). A discharge valve (14) is fixedly installed on the lower surface of the material collection pipe (2).
2. The polypropylene extrusion granulation template according to claim 1, characterized in that: The lower surface of the collecting pipe (2) is fixedly connected to the left and right sides of the support plate (15), the lower surface of the support plate (15) is fixedly installed with the cylinder (16), the lower surface of the discharge valve (14) is slidably provided with the sleeve (17), the left and right surfaces of the sleeve (17) are fixedly inserted with the support rod (18), and the other end of the support rod (18) is fixedly connected with the push plate (19).
3. The polypropylene extrusion granulation template according to claim 1, characterized in that: The inner surface of the collecting pipe (2) is provided with a sliding groove that is slidably arranged in relation to the sliding plate (12), and the groove opening (7) is slidably arranged in relation to the gear (6).
4. The polypropylene extrusion granulation template according to claim 1, characterized in that: The output end of the motor (5) is fixedly connected to the upper surface of the gear (6), the gear (6) is meshed with the tooth groove (13), and the hopper (10) is correspondingly interconnected with the collection pipe (2) and the discharge valve (14).
5. A polypropylene extrusion granulation template according to claim 2, characterized in that: The cylinder (16) is fixedly connected to the upper surface of the corresponding push plate (19), and the sleeve (17) and the discharge valve (14) are horizontally corresponding.
Citation Information
Patent Citations
Inclined hole type granulation template for extrusion granulator
CN211891540U