Raw material granulation device for plastic product injection molding

By adopting the combined structure of worm, worm wheels, semi -gear and other combination structures in plastic products, realize the uniform cutting of plastic strips, solve the problem of uneven plastic particles in the existing device, improve the density consistency and consistency and the density of plastic products and the density consistency and the density and the density and the density and the consistency of the density and the density and the density and the density and the consistency and the density and the consistency and the density and the density and the consistency of the plastic products and Physical mechanical properties and provide convenient blade replacement methods.

CN222406651UActive Publication Date: 2025-01-28SHENQIHAO INTELLIGENT MFG (SHENZHEN) CO LTD
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Patent Information

Application Number
CN202421176427.2
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-05-28
Publication Date
2025-01-28
Estimated Expiration
2034-05-28

AI Technical Summary

Technical Problem

When cutting plastic strips, existing plastic product granulation devices can easily lead to uneven size of plastic particles, which will affect the density consistency and physical and mechanical properties of plastic products.

Method used

Design a plastic product injection molding device, using a combination structure of worm, worm, semi -gear, tooth strip, mobile rack, rubber roller, fixed pipe and blade, drive the worm wheel through the motor to drive the rubber roller to promote it Plastic strips, and control the upper and lower movement of the blade through a semi -gear and rack to achieve a uniform cutting of the plastic strip.

Benefits of technology

Through the design of this device, the size of the plastic particles is ensured, thereby improving the density consistency of plastic products, avoiding the impact on physical mechanical properties, and the installation also provides the convenience of the blade replacement, extending the service life span Essence

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a raw material granulation device for plastic product injection molding, which comprises a support, the inner side of the support is fixedly connected with a fixed pipe, the fixed pipe penetrates through the support, the left end of the inner side of the support is fixedly connected with a motor, the tail end of a main shaft of the motor is fixedly connected with a worm penetrating through the support, and the worm is rotatably connected with the support. By arranging the worm, the worm gear, the half gear, the rack, the movable frame, the rubber roller, the fixed pipe and the cutting board, when extruded and cooled plastic strips are cut and granulated through the device, the plastic strips can be cut and granulated through the device; the plastic strips are pushed to penetrate through the cutting holes in the outer side of the cutting board while the cutting board is controlled to move up and down in a reciprocating mode to cut and granulate the plastic strips, the uniformity of cut plastic particles is guaranteed, and therefore when plastic products are processed through the cut plastic particles subsequently, the density of the produced plastic products is more uniform, and the production efficiency is improved. Therefore, the influence on the physical and mechanical properties of the plastic product is avoided.
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Description

Technical Field

[0001] The utility model relates to the technical field of plastic product manufacturing, in particular to a raw material granulating device for injection molding of plastic products. Background Art

[0002] The current production process of plastic products includes: the plastic raw material is melted by the high temperature of the screw extruder and then the molten plastic is extruded from the die head into thin strips, the thin strips are cooled and shaped by air or water and then sent to a granulator for cutting to obtain the required plastic particles. At present, when the existing granulator cuts the plastic strips to obtain plastic particles, the size of the plastic particles will be uneven. Therefore, when the plastic particles are used to process plastic products in the subsequent processing, the density of the plastic products after production will be inconsistent, which will further affect the physical and mechanical properties of the plastic material. Therefore, in view of the above problems, a raw material granulator for injection molding of plastic products is proposed. Utility Model Content

[0003] The technical problem to be solved by the utility model overcomes the existing defects and can effectively solve the problems in the background technology.

[0004] In order to achieve the above purpose, the technical solution adopted by the utility model is:

[0005] A raw material granulating device for injection molding of plastic products comprises a bracket, a fixed tube is fixedly connected to the inner side of the bracket, and the fixed tube passes through the bracket, a motor is fixedly connected to the left end of the inner side of the bracket, a worm is fixedly connected to the end of the main shaft of the motor and passes through the bracket, and the worm is rotatably connected to the bracket, a worm wheel is meshingly connected to the outer side of the worm wheel, a fixed shaft is fixedly connected to the inner side of the worm wheel, a rubber roller is fixedly connected to the outer side of the fixed shaft, a moving frame is slidably connected to the right end of the bracket, a knife plate with a cutting hole on the outer side is slidably connected to the inner side of the moving frame at both upper and lower ends, and the knife plate is slidably connected to the fixed tube.

[0006] As a further improvement of the utility model, a through hole is provided at the front end of the fixed tube, and the rear end of the rubber roller is located in the through hole outside the fixed tube.

[0007] As a further improvement of the present invention, bearings are fixedly connected to both upper and lower ends of the outer side of the fixed shaft, and the bearings are fixedly connected to the bracket.

[0008] As a further improvement of the present invention, a limiting block is fixedly connected to the left end of the movable frame, and the limiting block is slidably connected to the bracket.

[0009] As a further improvement of the utility model, a half gear is fixedly connected to the right end of the worm, a rack is meshingly connected to the outer side of the half gear, and the rack is fixedly connected to the moving frame.

[0010] As a further improvement of the utility model, support blocks are fixedly connected to the upper and lower sides of the right end of the bracket, and the support blocks are slidably connected to the knife plate.

[0011] As a further improvement of the utility model, the right end of the movable frame is slidably connected with a pull rod which passes through the movable frame, the left end of the pull rod is fixedly connected with a fixed plate which is slidably connected to the movable frame, the left end of the fixed plate is fixedly connected with a clamping block which is slidably connected to the movable frame, and the clamping block is clamped and connected with the knife plate, a spring is provided on the outside of the pull rod, and the spring is fixedly connected to the movable frame and the fixed plate.

[0012] Compared with the prior art, the utility model has the following beneficial effects:

[0013] 1. The raw material granulating device for plastic product injection molding is provided with a worm, a worm wheel, a half gear, a rack, a mobile frame, a rubber roller, a fixed tube and a knife plate. When the device is used to cut and granulate the extruded and cooled plastic strips, the plastic strips are first inserted into the fixed tube to contact the rubber roller, and then the motor is started to drive the worm to engage the worm wheel. At this time, the rubber roller on the outside of the fixed shaft is driven to rotate by the worm wheel, and the rubber roller will push the plastic strip to move right continuously along the fixed tube. At the same time, the half gear is driven to engage the rack by the worm, and the mobile frame is further controlled to drive the knife plate to reciprocate up and down. At this time, when the pushed plastic strip passes through the cutting hole on the outside of the knife plate, the knife plate that reciprocates up and down will continuously cut and granulate the pushed plastic strips. By pushing the plastic strips through the cutting holes on the outside of the knife plate while controlling the knife plate to reciprocate up and down to cut and granulate the plastic strips, the uniformity of the plastic particles after cutting is ensured, so that when the plastic products are processed by the cut plastic particles in the subsequent process, the density of the plastic products after production is more uniform, thereby avoiding the influence on the physical and mechanical properties of the plastic products.

[0014] 2. The raw material granulation device for plastic product injection molding is equipped with a pull rod, a fixed plate, a spring, a block and a knife plate. During the process of cutting plastic strips for granulation, when the knife plate is severely worn and the granulation effect becomes poor, the pull rod pulls the fixed plate to compress the spring, and at the same time, the fixed plate drives the block to disengage from the knife plate, which facilitates the removal of the severely worn knife plate for replacement, thereby ensuring the cutting and granulation effect of the plastic strips. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. They are used together with the embodiments of the present invention to explain the present invention and do not constitute a limitation to the present invention.

[0016] Figure 1 The utility model is a schematic diagram of the overall structure of a raw material granulating device for plastic product injection molding.

[0017] Figure 2 The utility model is a schematic cross-sectional view of a raw material granulating device for plastic product injection molding.

[0018] Figure 3 It is a left-side structural schematic diagram of a movable frame of a raw material granulating device for plastic product injection molding according to the utility model.

[0019] In the figure: 1. bracket; 2. fixed tube; 3. motor; 4. worm; 5. worm wheel; 6. fixed shaft; 7. rubber roller; 8. bearing; 9. movable frame; 10. limit block; 11. knife plate; 12. half gear; 13. rack; 14. support block; 15. pull rod; 16. fixed plate; 17. clamp block; 18. spring. DETAILED DESCRIPTION

[0020] The utility model is further described below in conjunction with specific implementation methods, wherein the accompanying drawings are only used for exemplary descriptions and represent only schematic diagrams rather than actual drawings, and cannot be understood as limitations on this patent. In order to better illustrate the specific implementation methods of the utility model, some parts of the accompanying drawings may be omitted, enlarged or reduced, and do not represent the size of the actual product. For those skilled in the art, it is understandable that some well-known structures and their descriptions in the accompanying drawings may be omitted. Based on the specific implementation methods in the utility model, all other specific implementation methods obtained by ordinary technicians in this field without making creative work are within the scope of protection of the utility model.

[0021] Example 1

[0022] like Figure 1-3 As shown, a raw material granulating device for injection molding of plastic products includes a bracket 1, a fixed tube 2 is fixedly connected to the inner side of the bracket 1, and the fixed tube 2 passes through the bracket 1, a motor 3 is fixedly connected to the left end of the inner side of the bracket 1, a worm 4 passing through the bracket 1 is fixedly connected to the end of the main shaft of the motor 3, and the worm 4 is rotatably connected to the bracket 1, a worm wheel 5 is meshingly connected to the outer side of the worm 4, a fixed shaft 6 is fixedly connected to the inner side of the worm wheel 5, a rubber roller 7 is fixedly connected to the outer side of the fixed shaft 6, a moving frame 9 is slidably connected to the right end of the bracket 1, a knife plate 11 with a cutting hole on the outer side is slidably connected to the inner side of the moving frame 9 at both upper and lower ends, and the knife plate 11 is slidably connected to the fixed tube 2.

[0023] Example 2

[0024] like Figure 1-2As shown, in order to solve the problem that it is inconvenient to push the plastic strip through the rubber roller 7, a through hole is opened at the front end of the fixed tube 2, and the rear end of the rubber roller 7 is located in the through hole outside the fixed tube 2. By opening a through hole on the outside of the fixed tube 2 and then making the rear end of the rubber roller 7 located in the through hole outside the fixed tube 2, after the plastic strip is inserted into the fixed tube 2 and contacts with the rubber roller 7, it is convenient to push the plastic strip when controlling the rotation of the rubber roller 7.

[0025] Example 3

[0026] like Figure 2 As shown, in order to solve the problem of large friction generated when the fixed shaft 6 rotates, bearings 8 are fixedly connected to the upper and lower ends of the outer side of the fixed shaft 6, and the bearings 8 are fixedly connected to the bracket 1. By connecting the fixed shaft 6 to the bracket 1 through the bearings 8, large friction is avoided when the fixed shaft 6 rotates.

[0027] Example 4

[0028] like Figure 2-3 As shown, in order to solve the problem that it is inconvenient to control the movable frame 9 to drive the knife plate 11 to perform reciprocating motion, the right end of the worm 4 is fixedly connected with a half gear 12, and the outer side of the half gear 12 is meshed with a rack 13, and the rack 13 is fixedly connected to the movable frame 9. The worm 4 drives the half gear 12 to mesh with the rack 13, so as to further control the movable frame 9 to perform reciprocating motion, which facilitates driving the knife plate 11 to perform reciprocating motion.

[0029] Example 5

[0030] like Figure 1-2 As shown, in order to solve the problem of poor stability of the knife plate 11 during reciprocating motion, support blocks 14 are fixedly connected to the upper and lower sides of the right end of the bracket 1, and the support block 14 is slidably connected to the knife plate 11. The support block 14 supports the knife plate 11 during reciprocating motion, so that the knife plate 11 has better stability during reciprocating motion.

[0031] Example 6

[0032] like Figure 1-2 As shown, in order to solve the problem of inconvenience in replacing the severely worn knife plate 11, the right end of the mobile frame 9 is slidably connected with a pull rod 15 that passes through the mobile frame 9, and the left end of the pull rod 15 is fixedly connected with a fixed plate 16 that is slidably connected to the mobile frame 9, and the left end of the fixed plate 16 is fixedly connected with a block 17 that is slidably connected to the mobile frame 9, and the block 17 is engaged with the knife plate 11, and a spring 18 is provided on the outside of the pull rod 15, and the spring 18 is fixedly connected to the mobile frame 9 and the fixed plate 16. The fixed plate 16 is pulled by the pull rod 15 to compress the spring 18, and at the same time, the block 17 is driven to disengage from the knife plate 11, which facilitates the removal of the severely worn knife plate 11 for replacement.

[0033] In this embodiment, when the device is used, the rear end of the device is facing downward, and then the device is placed horizontally. When the device is used to cut and granulate the extruded and cooled plastic strips, the plastic strips are first inserted into the fixed tube 2 to contact the rubber roller 7, and then the motor 3 is started to drive the worm 4 to engage the worm gear 5. At this time, the worm gear 5 drives the rubber roller 7 on the outside of the fixed shaft 6 to rotate, and the rubber roller 7 will push the plastic strip to move continuously to the right along the fixed tube 2. At the same time, the worm 4 simultaneously drives the half gear 12 to engage the rack 13, and further controls the moving frame 9 to drive the knife plate 11 to reciprocate. At this time, when the pushed plastic strip passes through the cutting plate 11 outside, When cutting holes, the reciprocating knife plate 11 will continuously cut and granulate the pushed plastic strips, and the plastic strips are pushed through the cutting holes on the outside of the knife plate 11 while controlling the reciprocating motion of the knife plate 11 to cut and granulate the plastic strips, thereby ensuring the uniformity of the plastic particles after cutting. In the process of cutting the plastic strips for granulation by the device, when the knife plate 11 is severely worn and the granulation effect becomes poor, the fixing plate 16 is pulled by the pull rod 15 to compress the spring 18, and at the same time, the fixing plate 16 drives the clamping block 17 to disengage from the knife plate 11, thereby facilitating the removal of the severely worn knife plate 11 for replacement, thereby ensuring the cutting and granulation effect of the plastic strips.

[0034] The above is a preferred implementation mode of the utility model. The above shows and describes the basic principles and main features of the utility model and the advantages of the utility model. Technical personnel in this industry should understand that the utility model is not limited to the above embodiments. The above embodiments and descriptions are only for illustrating the principles of the utility model. Without departing from the spirit and scope of the utility model, the utility model will have various changes and improvements, and these changes and improvements all fall within the scope of the utility model to be protected. The scope of protection of the utility model is defined by the attached claims and their equivalents.

Claims

1. A raw material granulating device for plastic product injection molding, comprising a bracket (1), characterized in that: A fixed tube (2) is fixedly connected to the inner side of the bracket (1), and the fixed tube (2) passes through the bracket (1); a motor (3) is fixedly connected to the left end of the inner side of the bracket (1); a worm (4) passing through the bracket (1) is fixedly connected to the end of the main shaft of the motor (3), and the worm (4) is rotatably connected to the bracket (1); a worm wheel (5) is meshingly connected to the outer side of the worm wheel (4); a fixed shaft (6) is fixedly connected to the inner side of the worm wheel (5); a rubber roller (7) is fixedly connected to the outer side of the fixed shaft (6); a moving frame (9) is slidably connected to the right end of the bracket (1); a knife plate (11) with a cutting hole on the outer side is slidably connected to the upper and lower ends of the inner side of the moving frame (9), and the knife plate (11) is slidably connected to the fixed tube (2).

2. The raw material granulating device for plastic product injection molding according to claim 1, characterized in that: A through hole is provided at the front end of the fixed tube (2), and the rear end of the rubber roller (7) is located in the through hole outside the fixed tube (2).

3. The raw material granulating device for plastic product injection molding according to claim 1 is characterized in that: The upper and lower ends of the outer side of the fixed shaft (6) are fixedly connected with bearings (8), and the bearings (8) are fixedly connected to the bracket (1).

4. The raw material granulating device for plastic product injection molding according to claim 1, characterized in that: The left end of the movable frame (9) is fixedly connected to a limiting block (10), and the limiting block (10) is slidably connected to the bracket (1).

5. The raw material granulating device for plastic product injection molding according to claim 1, characterized in that: The right end of the worm (4) is fixedly connected to a half gear (12), the outer side of the half gear (12) is meshingly connected to a rack (13), and the rack (13) is fixedly connected to the moving frame (9).

6. The raw material granulating device for plastic product injection molding according to claim 1, characterized in that: The upper and lower sides of the right end of the bracket (1) are fixedly connected to support blocks (14), and the support block (14) is slidably connected to the knife plate (11).

7. The raw material granulating device for plastic product injection molding according to claim 1, characterized in that: The right end of the movable frame (9) is slidably connected to a pull rod (15) penetrating the movable frame (9); the left end of the pull rod (15) is fixedly connected to a fixed plate (16) slidably connected to the movable frame (9); the left end of the fixed plate (16) is fixedly connected to a clamping block (17) slidably connected to the movable frame (9), and the clamping block (17) is clamped and connected to the knife plate (11); a spring (18) is provided on the outside of the pull rod (15), and the spring (18) is fixedly connected to the movable frame (9) and the fixed plate (16).