Crushing device for plastic particle processing

Abstract

The utility model relates to the technical field of plastic particle processing, in particular to a crushing device for plastic particle processing, which is easy to clean and maintain and improves the working efficiency. Comprising a rack used for bearing components; the crushing assembly is connected with the rack and comprises a crushing box, a crushing roller and a first driving motor, the crushing roller is installed in the crushing box, and the first driving motor is arranged outside the crushing box and drives the crushing roller to rotate; the collecting assembly is arranged below the crushing assembly, collects the crushed materials and comprises a first collecting box and a sieve tray, and the sieve tray is rotationally connected with the inner wall of the first collecting box; the cleaning assembly is arranged on one side of the collecting assembly, cleans materials on the sieve tray and comprises a second collecting box, a material conveying pipe and an electric telescopic rod, an opening communicated with the first collecting box is formed in the side wall of the second collecting box, a baffle is connected to the opening, the material conveying pipe is installed in the second collecting box and fixedly connected with the baffle, and the baffle is fixedly connected with one end of the sieve tray. The electric telescopic rod drives the baffle to move.

Description

Technical Field

[0001] The utility model relates to the technical field of plastic particle processing, in particular to a crushing device for plastic particle processing. Background Art

[0002] Plastics, a common material in everyday life, play a vital role in food packaging, agriculture, the electrical appliance industry, the chemical industry, and other fields. With the rapid development of the plastics industry, coupled with the growing size of Chinese cities and population expansion, the amount of waste plastics is also increasing. This has led to problems such as hindering sustainable development, affecting waste management, and polluting the human living environment. Therefore, recycling of waste plastics is necessary. The production line consists of: waste plastic sorting → crushing → thermoforming → pelletizing → finished product packaging.

[0003] During use, the crushing device generally crushes plastic products through crushing rollers to obtain plastic particles of uneven sizes, which often contain larger particles. Larger particles are difficult to melt in time during thermoplasticization, affecting the molding effect. Sieve plates are usually used for screening. However, during long-term use, the sieve plates are mostly installed inside the device, making it inconvenient for staff to clean and recycle the materials screened above them, thereby reducing the practicality of the crushing device. Utility Model Content

[0004] In order to solve the above technical problems, the utility model provides a crushing device for processing plastic particles, which is easy to clean and maintain and improves work efficiency.

[0005] The utility model relates to a crushing device for processing plastic particles, comprising:

[0006] The frame is an independent fixed setting, used to carry components;

[0007] The crushing assembly is fixedly connected to the frame and includes a crushing box, a crushing roller and a first drive motor. The upper and lower ends of the crushing box are both open. The crushing roller is rotatably mounted inside the crushing box through bearings. The first drive motor is arranged outside the crushing box to drive the crushing roller to rotate.

[0008] The collecting assembly is arranged directly below the crushing assembly and is used to collect the crushed materials. The collecting assembly includes a first collecting box and a sieve plate. The upper end of the first collecting box is open, and the sieve plate is rotatably connected to the inner wall of the first collecting box through a bearing.

[0009] The cleaning assembly is arranged on one side of the collecting assembly and is used to clean the material screened on the sieve plate. It includes a second collecting box, a material transfer pipe and an electric telescopic rod. An opening connected to the first collecting box is provided on the side wall of the second collecting box. A matching baffle is movably connected to the opening. The material transfer pipe is movably installed inside the second collecting box and is fixedly connected to the baffle. The baffle is fixedly connected to one end of the sieve plate through a connecting piece. The electric telescopic rod is used to drive the baffle to move.

[0010] Furthermore, a drawer is movably installed inside the first collecting box, and the drawer is arranged directly below the sieve plate. An opening corresponding to the drawer is opened on the side wall of the first collecting box.

[0011] Furthermore, the rotating shaft of the sieve plate is eccentrically distributed, and a limiting block for limiting the position of the sieve plate is provided inside the first collecting box.

[0012] Furthermore, the material transfer pipe is a funnel structure that is wide at the top and narrow at the bottom, and the length of the upper end surface of the material transfer pipe corresponds to the length of the sieve plate.

[0013] Furthermore, the crushing roller is provided with crushing teeth, which include high teeth and low teeth arranged at intervals. The crushing box is provided with cleaning teeth, which extend into the gaps between the crushing teeth.

[0014] Furthermore, the cleaning and scraping teeth are provided with an inclined surface inclined toward the central axis of the crushing box.

[0015] Furthermore, a feeding assembly is also included, and the feeding assembly includes:

[0016] The feed box is installed above the crushing box, with both the upper and lower ends open, and a feed hopper plugged into the side wall;

[0017] The cover plate is detachably mounted on the feed box and corresponds to the opening of the feed box; the extrusion block is movably mounted inside the feed box, and the lower end surface of the extrusion block is provided with a protrusion corresponding to the curvature of the crushing roller;

[0018] The driving mechanism is used to drive the squeezing block to move toward or away from the crushing roller.

[0019] Furthermore, the driving mechanism includes:

[0020] A transmission shaft is mounted on the cover plate through a bearing seat, and a transmission wheel is provided at one end thereof, and the transmission wheel is connected to the first drive motor through a chain;

[0021] The winding wheel is passed through the transmission shaft, and a connecting rope is wound around the outside. One end of the connecting rope passes through the cover plate and is fixedly connected to the extrusion block.

[0022] Furthermore, a fan is provided above the second collecting box, and both ends of the fan are connected to the second collecting box and the feed box respectively.

[0023] Furthermore, a spacing adjustment mechanism is included, which is used to adjust the distance between the crushing rollers. The spacing adjustment mechanism includes:

[0024] A slide rail, in which a slider is slidably connected, and the slider is fixedly connected to one end of the crushing roller;

[0025] The screw is rotatably installed inside the slide rail and is threadedly connected to the slider;

[0026] The second driving motor is arranged on one side of the slide rail, and the output end is connected to the screw rod for driving the screw rod to rotate.

[0027] Compared with the prior art, the beneficial effects of the present invention are:

[0028] The crushing component is used to achieve efficient crushing of plastic materials. The sieve plate in the collection component is responsible for screening the crushed materials, collecting small particles that meet the standards into the first collection box, while larger unqualified materials remain on the sieve plate. The cleaning component automatically removes the screened materials from the sieve plate, controls the opening and closing of the baffle through the electric telescopic rod, and uses the connecting piece to drive the sieve plate to rotate, so that large particles can smoothly slide through the material transfer pipe into the second collection box, thereby simplifying the cleaning process, improving production efficiency, and avoiding the inconvenience of frequent manual cleaning of the sieve plate in traditional methods. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] The present invention will be further described below with reference to the accompanying drawings.

[0030] Figure 1 It is a structural diagram of the utility model;

[0031] Figure 2 This is a schematic diagram of the internal cross-sectional structure of the utility model;

[0032] Figure 3 This is a schematic structural diagram of the crushing assembly surrounding spacing adjustment mechanism of the utility model;

[0033] Figure 4 It is a structural diagram of the extrusion block and the driving mechanism of the utility model;

[0034] Markings in the accompanying drawings: 1. frame; 2. crushing assembly; 2a. crushing box; 2b. crushing roller; 2c. first drive motor; 2d. cleaning scraper; 3. collecting assembly; 3a. first collecting box; 3b. sieve plate; 3c. drawer; 3d. limit block; 4. cleaning assembly; 4a. second collecting box; 4b. material transfer pipe; 4c. electric telescopic rod; 4d. baffle; 4e. connecting piece; 4f. fan; 5. feeding assembly; 5a. feed box; 5b. feed hopper; 5c. cover plate; 5d. extrusion block; 5e. drive mechanism; 5f. transmission shaft; 5g. bearing seat; 5h. transmission wheel; 5i. chain; 5j. winding wheel; 5k. connecting rope; 6. spacing adjustment mechanism; 6a. slide rail; 6b. slider; 6c. screw; 6d. second drive motor; 6e. telescopic plate. DETAILED DESCRIPTION

[0035] The following embodiments are used to illustrate the present invention, but are not intended to limit the scope of the present invention.

[0036] like Figures 1 to 4 As shown, the crushing device for processing plastic particles of the present invention includes: a frame 1, which is independently fixed and used to carry components; a crushing assembly 2, which is fixedly connected to the frame 1, including a crushing box 2a, a crushing roller 2b and a first drive motor 2c, the upper and lower ends of the crushing box 2a are both open, the crushing roller 2b is rotatably installed inside the crushing box 2a through a bearing, and the first drive motor 2c is arranged outside the crushing box 2a for driving the crushing roller 2b to rotate; a collecting assembly 3, which is arranged directly below the crushing assembly 2 and is used to collect the crushed material, including a first collecting box 3a and a sieve plate 3b, the first collecting box 3a The upper end is open, and the sieve plate 3b is rotatably connected to the inner wall of the first collection box 3a through a bearing; the cleaning assembly 4 is arranged on one side of the collection assembly 3, and is used to clean the material sieved on the sieve plate 3b, including a second collection box 4a, a material transfer pipe 4b and an electric telescopic rod 4c. The side wall of the second collection box 4a is provided with an opening communicating with the first collection box 3a, and a matching baffle 4d is movably connected to the opening. The material transfer pipe 4b is movably installed inside the second collection box 4a and is fixedly connected to the baffle 4d. The baffle 4d is fixedly connected to one end of the sieve plate 3b through a connecting piece 4e. The electric telescopic rod 4c is used to drive the baffle 4d to move;

[0037] The frame 1 serves as the basic structure of the entire device and plays a supporting role to ensure the stability and safety of the device; the raw material enters the crushing box 2a from the top, and the first drive motor 2c provides power to the crushing roller 2b, which crushes the material through the shear force generated by the rotation of the crushing roller 2b; the crushing box 2a provides a closed space for the crushing process to prevent material splashing and also facilitates the control of the working environment; the first collecting box 3a is used to receive the material coming out of the crushing, and the sieve plate 3b screens the crushed material according to size. Unqualified large particles will be left on the sieve plate 3b for further processing. Qualified materials pass through the sieve plate 3b and fall into the first collecting box 3a; the second collecting box 4a is used to collect larger materials that cannot pass through the sieve plate 3b. The electric telescopic rod 4c is used to control the movement of the baffle 4d, thereby controlling the time when unqualified materials enter the second collecting box 4a; when the material on the sieve plate 3b needs to be cleaned, the electric telescopic rod 4c drives the baffle 4d to move, and drives the sieve plate 3b to rotate through the connecting piece 4e, causing the material to pour and fall into the second collecting box 4a through the material transfer pipe 4b.

[0038] A drawer 3c is movably installed inside the first collecting box 3a. The drawer 3c is arranged directly below the sieve plate 3b, and an opening corresponding to the drawer 3c is opened on the side wall of the first collecting box 3a. The qualified materials after being screened by the sieve plate 3b are directly received by the drawer 3c, which is convenient for centralized collection and transportation and reduces the scattering and loss of materials. The operator can complete the material collection work by pulling out or pushing in the drawer 3c without disassembling the entire first collecting box 3a, thereby improving the convenience and efficiency of operation.

[0039] As a preferred embodiment of the above, the rotating shaft of the sieve plate 3b is eccentrically distributed, and a limit block 3d for limiting the sieve plate 3b is provided inside the first collecting box 3a; through the design of the eccentric rotating shaft, a larger angular rotation range can be achieved within the limited space of the first collecting box 3a; due to the eccentric rotating shaft, the sieve plate 3b is in an inclined state when it is stationary, and the limit block 3d is used to keep the sieve plate 3b in a horizontal state when it does not need to be cleaned, thereby preventing the material from falling directly without passing through the screening of the sieve plate 3b.

[0040] As a preferred embodiment of the above, the material transfer pipe 4b is a funnel structure that is wide at the top and narrow at the bottom, and the length of the upper end face of the material transfer pipe 4b corresponds to the length of the sieve plate 3b. This design ensures that the material on the sieve plate 3b can completely pass through the entrance of the material transfer pipe 4b, avoiding spillage or omission of the material during the transmission process. The funnel structure reduces the risk of blockage of the material during the transmission process, ensuring smooth transmission.

[0041] As a preferred embodiment of the above embodiment, the crushing roller 2b is provided with crushing teeth, which include high teeth and low teeth arranged at intervals. The crushing box 2a is provided with cleaning teeth 2d, which extend into the gaps between the crushing teeth. Different shear forces and extrusion effects are generated by the interval arrangement of the high teeth and the low teeth, so that the plastic material is subjected to multiple forces during the crushing process, thereby improving the crushing effect and efficiency. The high teeth are mainly responsible for the initial crushing of large pieces of material, and the low teeth are responsible for further refining the crushed material. This multi-stage crushing design can ensure that the material is fully crushed. As the crushing roller 2b rotates, the cleaning teeth 2d effectively removes the material that may adhere to the crushing teeth during the crushing process, prevents the material from clogging the gaps between the crushing teeth, ensures that the crushing teeth are always in a clean state, and maintains efficient crushing capacity.

[0042] As a preferred embodiment of the above, the cleaning scraper 2d is provided with an inclined surface inclined toward the central axis of the crushing box 2a; the inclined surface design guides the material to flow toward the central axis of the crushing box 2a, which helps to evenly distribute the material in the crushing box 2a and reduce the risk of local accumulation and blockage.

[0043] As a preferred embodiment of the above embodiment, it also includes a feeding assembly 5, which includes: a feeding box 5a, which is installed above the crushing box 2a, and the upper and lower ends are both open, and the side wall is connected to a feeding hopper 5b; a cover plate 5c, which is detachably installed on the feeding box 5a, corresponding to the opening of the feeding box 5a; an extrusion block 5d, which is movably installed inside the feeding box 5a, and the lower end surface of the extrusion block 5d is provided with a protrusion corresponding to the curvature of the crushing roller 2b; a driving mechanism 5e, which is used to drive the extrusion block 5d to move toward or away from the crushing roller 2b; the addition of materials is facilitated by the feeding hopper 5b, and the cover plate 5c cooperates with the opening of the feeding box 5a to prevent the materials from splashing or overflowing during the feeding process, and is convenient for the operator to inspect and maintain; the extrusion block 5d is driven up and down by the driving mechanism 5e to press the materials to be crushed above the crushing roller 2b, which is beneficial to improve the crushing efficiency of the plant materials to be cut.

[0044] As a preferred embodiment of the above embodiment, the driving mechanism 5e includes: a transmission shaft 5f, which is installed on the cover plate 5c through a bearing seat 5g, and a transmission wheel 5h is provided at one end, and the transmission wheel 5h is connected to the first driving motor 2c through a chain 5i; a winding wheel 5j, which is passed through the transmission shaft 5f and has a connecting rope 5k wound around the outside, and one end of the connecting rope 5k passes through the cover plate 5c and is fixedly connected to the extrusion block 5d; the bearing seat 5g ensures the stability of the transmission shaft 5f, and transmits the power of the first driving motor 2c to the transmission wheel 5h through the chain 5i, thereby driving the transmission shaft 5f to rotate, and the rotation of the transmission shaft 5f drives the winding wheel 5j to retract and release the connecting rope 5k, thereby driving the extrusion block 5d to move toward or away from the crushing roller 2b.

[0045] As a preferred embodiment of the above embodiment, a fan 4f is provided above the second collecting box 4a, and the two ends of the fan 4f are respectively connected to the second collecting box 4a and the feed box 5a; the large particle materials in the second collecting box 4a are returned to the feed box 5a through the fan 4f, thereby realizing the recycling of materials, ensuring that all materials are fully crushed, and improving the utilization rate of materials.

[0046] As a preferred embodiment of the above embodiment, a spacing adjustment mechanism 6 is further included, which is used to adjust the distance between the crushing rollers 2b. The spacing adjustment mechanism 6 includes: a slide rail 6a, a slider 6b is slidably connected to the slide rail 6a, and the slider 6b is fixedly connected to one end of the crushing roller 2b; a screw 6c, which is rotatably installed inside the slide rail 6a and is threadedly connected to the slider 6b; a second drive motor 6d, which is arranged on one side of the slide rail 6a, and the output end is transmission-connected to the screw 6c to drive the screw 6c to rotate; the spacing of the crushing rollers 2b is accurately adjusted by the spacing adjustment mechanism 6, thereby improving the crushing accuracy and flexibility of the equipment; the second drive motor 6d drives the screw 6c to rotate, and the rotation of the screw 6c drives the slider 6b to move along the slide rail 6a through the threaded connection, thereby adjusting the distance between the crushing rollers 2b to meet different materials and different crushing requirements.

[0047] The crushing device for processing plastic particles of the present invention is as follows: when working, the material to be crushed is put into the feed hopper 5b, and the material naturally flows from the feed box 5a to the crushing box 2a by gravity; the first drive motor 2c starts to run, driving the two crushing rollers 2b to rotate in opposite directions, and at the same time drives the transmission wheel 5h to rotate through the chain 5i, so that the transmission shaft 5f rotates, and the winding wheel 5j extends the connecting rope 5k, so that the extrusion block 5d moves downward and applies pressure to the material, the crushing roller 2b shears the material, and the cleaning teeth 2d continuously scrapes the material on the crushing teeth as the crushing roller 2b rotates to keep the crushing teeth clean; after crushing, the material is crushed. The material falls into the first collecting box 3a, and the screen 3b separates qualified debris and large particles that do not meet the standards. The qualified debris falls into the drawer 3c, and the large particles that do not meet the standards are left on the screen 3b; when it is necessary to clean the material on the sieve plate 3b, the electric telescopic rod 4c drives the baffle 4d to move, and the movement of the baffle 4d drives the sieve plate 3b to rotate through the connecting piece 4e, so that the large particles fall into the second collecting box 4a through the material transfer pipe 4b; the fan 4f is started, and the large particles in the second collecting box 4a are sucked in and returned to the feed box 5a through the pipeline, and participate in the crushing process again until the predetermined crushing effect is achieved.

[0048] The installation, connection or setting method of the crushing device for plastic particle processing of the present invention are all common mechanical methods, and any method that can achieve its beneficial effects can be implemented.

[0049] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the technical principles of the present invention. These improvements and modifications should also be regarded as the scope of protection of the present invention.

Claims

1. A crushing device for processing plastic particles, characterized in that: include: A frame (1) is independently fixed and used to carry components; A crushing assembly (2) is fixedly connected to the frame (1), and comprises a crushing box (2a), a crushing roller (2b) and a first drive motor (2c); the upper and lower ends of the crushing box (2a) are both open, the crushing roller (2b) is rotatably mounted inside the crushing box (2a) via a bearing, and the first drive motor (2c) is arranged outside the crushing box (2a) and is used to drive the crushing roller (2b) to rotate; A collecting assembly (3) is arranged directly below the crushing assembly (2) and is used to collect crushed materials. The collecting assembly (3) comprises a first collecting box (3a) and a sieve plate (3b). The upper end of the first collecting box (3a) is open, and the sieve plate (3b) is rotatably connected to the inner wall of the first collecting box (3a) via a bearing. A cleaning assembly (4) is arranged on one side of the collecting assembly (3) and is used to clean the material screened on the sieve plate (3b). It includes a second collecting box (4a), a material transfer pipe (4b) and an electric telescopic rod (4c). An opening communicating with the first collecting box (3a) is provided on the side wall of the second collecting box (4a). A matching baffle (4d) is movably connected to the opening. The material transfer pipe (4b) is movably installed inside the second collecting box (4a) and is fixedly connected to the baffle (4d). The baffle (4d) is fixedly connected to one end of the sieve plate (3b) via a connecting piece (4e). The electric telescopic rod (4c) is used to drive the baffle (4d) to move.

2. The crushing device for processing plastic particles according to claim 1, characterized in that: A drawer (3c) is movably installed inside the first collecting box (3a), and the drawer (3c) is arranged directly below the sieve plate (3b). An opening corresponding to the drawer (3c) is opened on the side wall of the first collecting box (3a).

3. The crushing device for processing plastic particles according to claim 1, characterized in that: The rotating shaft of the sieve plate (3b) is eccentrically distributed, and a limiting block (3d) for limiting the position of the sieve plate (3b) is provided inside the first collecting box (3a).

4. The crushing device for processing plastic particles according to claim 1, characterized in that: The material transfer pipe (4b) is a funnel structure that is wide at the top and narrow at the bottom. The length of the upper end surface of the material transfer pipe (4b) corresponds to the length of the sieve plate (3b).

5. The crushing device for processing plastic particles according to claim 1, characterized in that: The crushing roller (2b) is provided with crushing teeth, which include high teeth and low teeth arranged at intervals. The crushing box (2a) is provided with cleaning teeth (2d), which extend into the gaps between the crushing teeth.

6. The crushing device for processing plastic particles according to claim 5, characterized in that: The cleaning and scraping teeth (2d) are provided with an inclined surface inclined toward the central axis of the crushing box (2a).

7. The crushing device for processing plastic particles according to claim 1, characterized in that: The invention also comprises a feeding assembly (5), wherein the feeding assembly (5) comprises: A feed box (5a) is installed above the crushing box (2a), with the upper and lower ends both being open, and a feed hopper (5b) being inserted into the side wall; a cover plate (5c) detachably mounted on the feed box (5a) and corresponding to the opening of the feed box (5a); An extrusion block (5d) is movably mounted inside the feed box (5a), and a lower end surface of the extrusion block (5d) is provided with a protrusion corresponding to the curvature of the crushing roller (2b); A driving mechanism (5e) is used for driving the squeezing block (5d) to move toward or away from the crushing roller (2b).

8. The crushing device for processing plastic particles according to claim 7, characterized in that: The driving mechanism (5e) comprises: A transmission shaft (5f) is mounted on the cover plate (5c) via a bearing seat (5g), and a transmission wheel (5h) is provided at one end. The transmission wheel (5h) is connected to the first drive motor (2c) via a chain (5i); The winding wheel (5j) is passed through the transmission shaft (5f) and has a connecting rope (5k) wound around the outside. One end of the connecting rope (5k) passes through the cover plate (5c) and is fixedly connected to the extrusion block (5d).

9. The crushing device for processing plastic particles according to claim 7, characterized in that: A fan (4f) is provided above the second collecting box (4a), and two ends of the fan (4f) are respectively connected to the second collecting box (4a) and the feed box (5a).

10. The crushing device for processing plastic particles according to claim 1, wherein: It also includes a spacing adjustment mechanism (6), which is used to adjust the distance between the crushing rollers (2b). The spacing adjustment mechanism (6) includes: A slide rail (6a), wherein a slider (6b) is slidably connected inside the slide rail (6a), and the slider (6b) is fixedly connected to one end of the crushing roller (2b); A screw rod (6c) is rotatably mounted inside the slide rail (6a) and is threadably connected to the slider (6b); The second driving motor (6d) is arranged on one side of the slide rail (6a), and its output end is transmission-connected to the screw rod (6c) to drive the screw rod (6c) to rotate.

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