A resin powder pre-crushing and grinding treatment device

Abstract

This invention provides a resin powder pre-crushing and grinding device, belonging to the field of resin powder processing technology. It addresses the problem that existing resin powder pre-processing equipment typically consists of separate crushing and grinding devices, resulting in long material exposure times during transfer, leading to dust leakage and increased operational complexity. The device includes a feeding hopper, a grinding mill, primary crushing rollers, an integrated grinding assembly, and a dustproof assembly. The grinding mill is fixedly connected to the lower left end of the feeding chamber. Two primary crushing rollers are rotatably connected inside the feeding hopper. The integrated grinding assembly is located on the right side of the feeding hopper. The dustproof assembly is located on the top of the feeding hopper. This invention achieves continuous material crushing and grinding, reducing transfer steps and dust leakage. Furthermore, the sliding baffle gap adjustment and automatic opening and closing of the shielding door provide double protection to further reduce dust, improving processing efficiency and environmental friendliness.

Description

Technical Field

[0001] This utility model belongs to the field of resin powder processing technology, and more specifically, it relates to a resin powder pre-crushing and grinding device. Background Technology

[0002] The grinding process of resin materials from lumps to powder can be divided into two steps: First, the lumpy resin is initially crushed into smaller particles by crushing equipment; then, these particles enter grinding equipment such as ball mills and colloid mills, where they are continuously refined by the high-speed impact, compression and shearing action of grinding media such as steel balls and grinding discs in the chamber, and finally form a powdered resin product with uniform particle size. The current resin powder pre-processing equipment mainly consists of two parts: crushing equipment to complete the conversion from lumps to granules, and grinding equipment to realize the processing from granules to powder.

[0003] The existing application number is CN202222395811.9. This utility model provides a polyester resin pulverizing device. The pulverizing box has a pulverizing chamber and a screening chamber arranged sequentially from top to bottom. A pulverizing mechanism is installed in the pulverizing chamber. Using the above technical solution, polyester resin is poured into the pulverizing chamber, and the pulverizing mechanism is used to pulverize the polyester resin. The pulverized polyester resin fragments fall into the screening chamber and land on the screening plate. This drives the motor to rotate the eccentric wheel. With the cooperation of a spring, the screening plate can be driven to vibrate continuously from left to right, thus screening the polyester resin fragments on the screening plate. The qualified polyester resin fragments fall to the bottom of the pulverizing box, while the unqualified polyester resin fragments remain on the screening plate. When the unqualified polyester resin fragments accumulate to a certain extent on the screening plate, the push plate is moved by the electric push rod to push them to the discharge port, and then removed from the pulverizing box. The unqualified polyester resin fragments can be poured back into the pulverizing chamber for secondary pulverization until they meet the requirements.

[0004] Based on the above, resin powder pre-processing equipment usually consists of independent crushing and grinding equipment. After the block resin is crushed into particles, it needs to be transferred to the grinding equipment manually or with additional equipment. During the transfer process, the material is exposed for a long time, which can easily lead to dust leakage and increase the complexity of the operation steps. Utility Model Content

[0005] To address the aforementioned technical problems, this utility model provides a resin powder pre-crushing and grinding device. This addresses the issue that existing resin powder pre-processing equipment typically consists of separate crushing and grinding equipment. After the blocky resin is crushed into particles, it needs to be manually or with additional equipment transferred to the grinding equipment. During the transfer process, the material is exposed for a long time, which can easily lead to dust leakage and increases the complexity of the operation steps.

[0006] The purpose and effect of this utility model's resin powder pre-crushing and grinding device are achieved by the following specific technical means:

[0007] A resin powder pre-crushing and grinding device includes a feeding hopper, a feeding chamber, a grinder, a drive motor, a primary crushing roller, a transmission box, a push cylinder, an integrated grinding assembly, and a dustproof assembly. The feeding chamber is fixedly connected below the feeding hopper. The grinder is fixedly connected below the left end of the feeding chamber. The drive motor is fixedly connected to the right side of the feeding hopper. Two primary crushing rollers are provided, each rotatably connected inside the feeding hopper, with the rear primary crushing roller coaxially fixedly connected to the end of the drive motor's shaft. The transmission box is fixedly connected in front of the feeding hopper. The push cylinder is fixedly connected above the transmission box. The integrated grinding assembly is located on the right side of the feeding hopper. The dustproof assembly is located on top of the feeding hopper.

[0008] Furthermore, the integrated grinding assembly includes: a first crushing gear and a second crushing gear; the first crushing gear is coaxially fixedly connected to the outside of the drive motor shaft; the second crushing gear is coaxially fixedly connected to the right end of a primary crushing roller in front, and the second crushing gear meshes with the first crushing gear.

[0009] Furthermore, the integrated grinding assembly also includes: a conveyor pulley, a drive belt, and a conveyor agitator; two conveyor pulleys are provided, with the upper one coaxially fixedly connected to the right side of the second crushing gear, and the lower one rotatably connected to the right side of the feeding chamber; the drive belt is drivenly connected to the outside of the two conveyor pulleys; the conveyor agitator is coaxially fixedly connected to the left side of the lower conveyor pulley.

[0010] Furthermore, the dustproof assembly includes: a connector and a transmission rack; two connectors are provided, and the two connectors are slidably connected inside the transmission box, with the left connector fixedly connected to the end of the piston rod of the push cylinder; two transmission racks are provided, and the two transmission racks are fixedly connected below the two connectors.

[0011] Furthermore, the dustproof assembly also includes: a sliding baffle and a transmission gear; two sliding baffles are provided, and the two sliding baffles are respectively fixedly connected to the top rear of the two connecting parts; the transmission gear is rotatably connected inside the transmission box, and the transmission gear meshes with the two transmission racks respectively.

[0012] Furthermore, the dustproof assembly also includes: a connecting shaft, a shielding door, a linkage component, and a right-angle spring; two connecting shafts are provided, each rotatably connected to the top of the feed hopper; two shielding doors are provided, their outer ends fixedly connected to the outside of the two connecting shafts; four linkage components are provided, each fixedly connected to the left and right ends of the two connecting shafts; four right-angle springs are provided, each sleeved on the left and right ends of the two connecting shafts, their outer ends fixedly connected to the top of the feed hopper, and their inner ends contacting the outside of the four linkage components.

[0013] Compared with the prior art, the present invention has the following beneficial effects:

[0014] First, the integrated grinding assembly enables the continuous processing of resin material crushing and grinding. The drive motor drives the double primary crushing rollers to initially crush the blocky resin. At the same time, the crushed particles are directly transported to the grinding mill for further refinement through gear transmission, conveyor pulleys, and drive belts. This not only reduces the transfer steps of materials between crushing and grinding, reducing operational complexity, but also reduces dust emission due to shortened material exposure time, making it more environmentally friendly and improving processing efficiency and environmental friendliness.

[0015] Secondly, the dustproof components effectively solve the problem of dust leakage during the resin crushing process. On the one hand, the gap of the sliding baffle can be adjusted by pushing the electric cylinder to reduce the opening and dust diffusion while allowing the material to pass through. On the other hand, the shielding door at the top of the feed hopper opens automatically under the action of the material's gravity to allow the material to fall. After the material passes through, it closes with the help of a right-angle spring, forming a double dustproof barrier, which further reduces the amount of dust leakage during the crushing and grinding process and optimizes the working environment.

[0016] This invention achieves continuous crushing and grinding through an integrated grinding component, reducing material transfer steps and dust escape. At the same time, the dustproof component's sliding baffle gap adjustment and automatic opening and closing of the shielding door form a double protection to further reduce dust. This not only improves processing efficiency and environmental protection, but also provides a reference for the design of high-efficiency and low-pollution equipment in the resin powder processing field, helping to improve the industry's green production level. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0018] Figure 2 This is a schematic diagram of the feeding chamber structure of this utility model.

[0019] Figure 3 This is a schematic diagram of the sliding baffle structure of this utility model.

[0020] Figure 4 This is a schematic diagram of the connector structure of this utility model.

[0021] Figure 5 This is a schematic diagram of the feeding hopper structure of this utility model.

[0022] Figure 6 This is a schematic diagram of the shielding door structure of this utility model.

[0023] In the diagram, the correspondence between component names and drawing numbers is as follows:

[0024] 1. Feed hopper; 2. Feeding chamber; 3. Grinding mill; 4. Drive motor; 5. Primary crushing roller; 6. First crushing gear; 7. Second crushing gear; 701. Conveyor pulley; 8. Transmission belt; 9. Conveying agitator; 10. Transmission box; 11. Pushing cylinder; 12. Connecting component; 1201. Transmission rack; 1202. Sliding baffle; 13. Transmission gear; 14. Connecting shaft; 1401. Shielding door; 1402. Linkage component; 15. Right angle spring. Detailed Implementation

[0025] The embodiments of this utility model will be described in further detail below with reference to the accompanying drawings and examples. The following examples are for illustrative purposes only and should not be construed as limiting the scope of this utility model. Example

[0026] As attached Figure 1 To be continued Figure 6 As shown:

[0027] This utility model provides a resin powder pre-crushing and grinding device, including a feeding hopper 1, a feeding chamber 2, a grinding mill 3, a drive motor 4, a primary crushing roller 5, a transmission box 10, a push cylinder 11, and an integrated grinding assembly; the feeding chamber 2 is fixedly connected to the bottom of the feeding hopper 1; the grinding mill 3 is fixedly connected to the lower left end of the feeding chamber 2; the drive motor 4 is fixedly connected to the right side of the feeding hopper 1; two primary crushing rollers 5 are provided, and the two primary crushing rollers 5 are rotatably connected inside the feeding hopper 1, with the rear primary crushing roller 5 coaxially fixedly connected to the end of the shaft of the drive motor 4; the transmission box 10 is fixedly connected to the front of the feeding hopper 1; the push cylinder 11 is fixedly connected to the top of the transmission box 10; the integrated grinding assembly is located on the right side of the feeding hopper 1.

[0028] The integrated grinding assembly includes a first crushing gear 6 and a second crushing gear 7. The first crushing gear 6 is coaxially fixedly connected to the outside of the shaft of the drive motor 4. The second crushing gear 7 is coaxially fixedly connected to the right end of a primary crushing roller 5 in front, and the second crushing gear 7 meshes with the first crushing gear 6.

[0029] The integrated grinding assembly also includes: a conveyor pulley 701, a transmission belt 8, and a conveyor agitator 9; two conveyor pulleys 701 are provided, with the upper one coaxially fixedly connected to the right side of the second crushing gear 7, and the lower one rotatably connected to the right side of the feeding chamber 2; the transmission belt 8 is drivingly connected to the outside of the two conveyor pulleys 701; the conveyor agitator 9 is coaxially fixedly connected to the left side of the lower conveyor pulley 701.

[0030] The specific usage and function of this embodiment are as follows: During use, the resin material is fed into the feeding hopper 1. The drive motor 4 drives the primary crushing roller 5 at the rear to rotate. The primary crushing roller 5 at the front rotates in the opposite direction through the gear transmission mechanism formed by the meshing of the first crushing gear 6 and the second crushing gear 7. This initially crushes the resin material into granules. After the material is initially crushed, it falls into the feeding chamber 2. The second crushing gear 7 drives the conveying auger 9 to rotate through the transmission mechanism formed by the two conveyor pulleys 701 and the transmission belt 8. This conveys the material into the grinding mill 3, where the granular material is further ground and pulverized to form powdered resin material, which is convenient for subsequent use. This not only reduces the material transfer steps, but also reduces the amount of dust exposed to the outside, making it more environmentally friendly. Example

[0031] Based on Example 1, as shown in the appendix Figure 1 To be continued Figure 6 As shown, it also includes a dustproof component, which is installed on the top of the feed hopper 1.

[0032] The dustproof component includes: a connector 12 and a transmission rack 1201; two connectors 12 are provided, and the two connectors 12 are slidably connected inside the transmission box 10, with the left connector 12 fixedly connected to the end of the piston rod of the push cylinder 11; two transmission racks 1201 are provided, and the two transmission racks 1201 are fixedly connected below the two connectors 12.

[0033] The dustproof component also includes: a sliding baffle 1202 and a transmission gear 13; two sliding baffles 1202 are provided, and the two sliding baffles 1202 are respectively fixedly connected to the top rear of the two connecting parts 12; the transmission gear 13 is rotatably connected inside the transmission box 10, and the transmission gear 13 meshes with the two transmission racks 1201 respectively.

[0034] The dustproof assembly also includes: a connecting shaft 14, a shielding door 1401, a linkage 1402, and a right-angle spring 15; two connecting shafts 14 are provided, and the two connecting shafts 14 are rotatably connected to the top of the feed hopper 1; two shielding doors 1401 are provided, and the outer ends of the two shielding doors 1401 are fixedly connected to the outer sides of the two connecting shafts 14; four linkages 1402 are provided, and the four linkages 1402 are fixedly connected to the left and right ends of the two connecting shafts 14; four right-angle springs 15 are provided, and the four right-angle springs 15 are respectively sleeved on the left and right ends of the two connecting shafts 14, the outer ends of the four right-angle springs 15 are fixedly connected to the top of the feed hopper 1, and the inner ends of the four right-angle springs 15 are in contact with the outer sides of the four linkages 1402.

[0035] The specific usage and function of this embodiment: Based on the volume of material fed into the feed hopper 1, the gap between the two sliding baffles 1202 can be pre-adjusted to reduce dust escape. In specific operation, the electric cylinder 11 is activated, pushing the piston rod of the electric cylinder 11 to move the left connecting member 12 to the left. Simultaneously, the gear and rack transmission mechanism formed by the transmission gear 13 meshing with the two transmission racks 1201 drives the right connecting member 12 to the right, thereby widening the gap between the sliding baffles 1202, allowing material to pass through. The gap between the two sliding baffles 1202 is minimized as much as possible. At the same time, when the material falls on the two shielding doors 1401, under the action of the material's gravity, the two shielding doors 1401 swing downwards around the two connecting shafts 14. During the process, the linkage 1402 drives the inner end of the right-angle spring 15 to tighten downwards. After the material falls between the two shielding doors 1401, the right-angle spring 15 rebounds, causing the two shielding doors 1401 to swing upwards around the two connecting shafts 14, so that the two shielding doors 1401 close, further preventing the escape of dust when the resin material is broken.

[0036] The following points should be noted in this article:

[0037] 1. The accompanying drawings of this embodiment only involve the structures involved in this embodiment; other structures can refer to the general design.

[0038] 2. Where there is no conflict, this embodiment and the features in the embodiment can be combined with each other to obtain new embodiments.

[0039] The above are merely specific implementations of this embodiment, but the protection scope of this embodiment is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this embodiment should be included within the protection scope of this embodiment. Therefore, the protection scope of this embodiment should be determined by the protection scope of the claims.

Claims

1. A resin powder pre-crushing and grinding device, comprising a feeding hopper (1), a feeding chamber (2), a grinder (3), a drive motor (4), a primary crushing roller (5), a transmission box (10), a push cylinder (11), an integrated grinding assembly, and a dustproof assembly; characterized in that: The feeding chamber (2) is fixedly connected below the feeding bin (1); the grinding machine (3) is fixedly connected below the left end of the feeding chamber (2); the drive motor (4) is fixedly connected to the right side of the feeding bin (1); two primary crushing rollers (5) are provided, and the two primary crushing rollers (5) are rotatably connected inside the feeding bin (1), and the rear primary crushing roller (5) is coaxially fixedly connected to the end of the shaft of the drive motor (4); the transmission box (10) is fixedly connected in front of the feeding bin (1); the push cylinder (11) is fixedly connected above the transmission box (10); the integrated grinding assembly is set on the right side of the feeding bin (1); the dustproof assembly is set on the top of the feeding bin (1).

2. The resin powder pre-pulverizing and grinding processing apparatus as claimed in claim 1, wherein: The integrated grinding assembly includes a first crushing gear (6) and a second crushing gear (7); the first crushing gear (6) is coaxially fixedly connected to the outside of the shaft of the drive motor (4); the second crushing gear (7) is coaxially fixedly connected to the right end of a primary crushing roller (5) in front, and the second crushing gear (7) meshes with the first crushing gear (6).

3. The resin powder pre-pulverizing and grinding processing apparatus as claimed in claim 2, wherein: the first and second rotary hammers are arranged to be rotated in opposite directions; and the first and second rotary hammers are arranged to be rotated at different speeds. The integrated grinding assembly also includes: a conveyor pulley (701), a transmission belt (8), and a conveyor agitator (9); the conveyor pulley (701) is provided in two parts, the upper one of which is coaxially fixedly connected to the right side of the second crushing gear (7), and the lower one of which is rotatably connected to the right side of the feeding chamber (2); the transmission belt (8) is drivenly connected to the outside of the two conveyor pulleys (701); the conveyor agitator (9) is coaxially fixedly connected to the left side of the lower conveyor pulley (701).

4. The resin powder pre-crushing and grinding device as described in claim 1, characterized in that: The dustproof assembly includes: a connector (12) and a transmission rack (1201); two connectors (12) are provided, and the two connectors (12) are slidably connected inside the transmission box (10), and the left connector (12) is fixedly connected to the piston rod end of the push cylinder (11); two transmission racks (1201) are provided, and the two transmission racks (1201) are fixedly connected below the two connectors (12).

5. The resin powder pre-crushing and grinding device as described in claim 4, characterized in that: The dustproof assembly also includes: a sliding baffle (1202) and a transmission gear (13); two sliding baffles (1202) are provided, and the two sliding baffles (1202) are respectively fixedly connected to the top rear of the two connecting parts (12); the transmission gear (13) is rotatably connected inside the transmission box (10), and the transmission gear (13) meshes with the two transmission racks (1201) respectively.

6. The resin powder pre-crushing and grinding device as described in claim 1, characterized in that: The dustproof assembly also includes: a connecting shaft (14), a shielding door (1401), a linkage (1402), and a right-angle spring (15); two connecting shafts (14) are provided, and the two connecting shafts (14) are rotatably connected to the top of the feed hopper (1); two shielding doors (1401) are provided, and the outer ends of the two shielding doors (1401) are fixedly connected to the outside of the two connecting shafts (14); four linkages (1402) are provided, and the four linkages (1402) are fixedly connected to the left and right ends of the two connecting shafts (14); four right-angle springs (15) are provided, and the four right-angle springs (15) are respectively sleeved on the left and right ends of the two connecting shafts (14), the outer ends of the four right-angle springs (15) are fixedly connected to the top of the feed hopper (1), and the inner ends of the four right-angle springs (15) are in contact with the outside of the four linkages (1402).

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