Powder machine for plastic preparation
By introducing a movable receiving box, hydraulic limit components, and locking components into the powder feeder, the problem of difficult cleaning of existing powder feeders has been solved, enabling rapid cleaning of both fixed and moving blades and reducing maintenance costs.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- TIANJIN JINRUI PLASTIC MAGNETIC TECHNOLOGY CO LTD
- Filing Date
- 2025-04-03
- Publication Date
- 2026-04-24
AI Technical Summary
Existing plastic powder preparation machines require the entire equipment to be disassembled for cleaning the moving and fixed blades, resulting in high maintenance costs.
A powder feeder structure was designed, including a movable receiving box, a hydraulic limiting component, a hinged mounting base, and a locking component. This structure allows for quick opening of the feed hopper and the fixed blade fixing box, facilitating high-pressure water gun cleaning and avoiding the need for complete disassembly of the equipment.
It enables rapid cleaning of both fixed and moving blades, reducing maintenance costs and operational difficulty, and improving equipment maintenance efficiency.
Smart Images

Figure CN224158688U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of powder processing technology, and in particular to a powder processing machine for plastic preparation. Background Technology
[0002] The production of plastics primarily relies on plastic pellets, which mainly come from two sources: virgin pellets and recycled waste plastics. Recycling waste plastics is not only environmentally friendly but also conserves resources. The process of producing new plastics from waste plastics involves a series of meticulous treatments. First, the waste plastics undergo coarse washing to remove surface contaminants. Next, they are pulverized using a plastics processing pulverizer, a widely used device in the plastics manufacturing industry that effectively breaks down waste plastics into small particles. After pulverization, the particles undergo further washing and drying to ensure their purity and dryness. Only after these preparations are completed can the pulverized waste plastics be transported to the pellet processing system, ultimately transforming into reusable plastic pellets. This process not only improves the utilization rate of waste plastics but also contributes to the sustainable development of the plastics industry.
[0003] For example, the plastic preparation powder mill disclosed in application number CN201920738430.1 automatically separates incompletely crushed waste plastic from waste plastic fragments by adding a screening device, thus reducing the difficulty for workers to pick out incompletely crushed waste plastic from plastic fragments and improving the crushing efficiency of the plastic preparation powder mill; it includes a cylinder, four sets of support legs and a power mechanism. The bottom left front side, left rear side, right front side and right rear side of the cylinder are respectively connected to the top of the four sets of support legs. The cylinder is provided with a working chamber. The top and bottom of the working chamber are respectively connected to a feeding pipe and a discharging pipe. The working chamber is provided with a crushing mechanism; it also includes a mounting platform, a separation box, a motor, a rotating shaft, a mounting block, three sets of fan blades and two sets of fixing plates. The top right end of the mounting platform is connected to the lower side of the middle area of the left end of the separation box. The separation box is provided with a flow chamber.
[0004] However, when cleaning the crushing mechanism, namely the moving and fixed blades, the above equipment requires disassembling the entire device, which is laborious and increases maintenance costs. Utility Model Content
[0005] To address the aforementioned problems, this invention provides a powder preparation machine for plastics.
[0006] To achieve the above objectives, this utility model provides the following technical solution:
[0007] A powder mill for plastic preparation includes: a base, a movable receiving box, a movable blade fixing base, a drive motor, a movable blade, a fixed blade fixing box, a fixed blade, a feeding bin, a hinged mounting base, and a locking assembly. The movable receiving box is disposed on the lower side of the base. The movable blade fixing base is fixedly mounted on the base, and the movable blade is rotatably disposed within the movable blade fixing base. One end of the movable blade is fixedly connected to the output end of the drive motor fixedly mounted on the base. The fixed blade fixing box is disposed on the upper side of the movable blade fixing base and is hingedly connected to the movable blade fixing base. The fixed blade is fixedly mounted within the fixed blade fixing box. The movable blade and the fixed blade work together to crush plastic. The feeding bin is disposed on the upper side of the fixed blade fixing box and is hingedly connected to the hinged mounting base. The hinged mounting base is fixedly mounted on the base, and the feeding bin and the base are connected by a locking assembly.
[0008] Preferably, it further includes: a hydraulic limiting assembly, the hydraulic limiting assembly including: a first limiting shaft, a second limiting shaft, a hydraulic cylinder and a connecting block, the first limiting shaft being fixedly installed on one side of the moving tool fixing base, the second limiting shaft being fixedly installed on one side of the fixed tool fixing box, the lower side of the hydraulic cylinder being hingedly connected to the first limiting shaft, the output end of the hydraulic cylinder being fixedly connected to the connecting block, and the connecting block being hingedly connected to the second limiting shaft.
[0009] Preferably, the hinged mounting base includes: a hinged mounting base body, a rotating shaft, and a limiting plate. The hinged mounting base body is fixedly mounted on the base. The feed hopper is hingedly connected to the hinged mounting base body via the rotating shaft. The limiting plate is fixedly mounted on one side of the rotating shaft. The limiting plate cooperates with the hinged mounting base body to limit the rotation angle of the feed hopper.
[0010] Preferably, a bearing seat is provided on one side of the moving blade fixing base, the output shaft of the drive motor is rotatably connected to the bearing seat, the bearing seat is fixedly installed on the base, and the bearing seat is connected to the feed hopper through a locking assembly.
[0011] Preferably, the locking assembly includes: a locking mother block, a locking daughter piece, a rotating block, a lead screw, and a locking nut. The locking mother block is fixedly installed on one side of the bearing seat, the locking daughter piece is fixedly installed on one side of the feed hopper, the rotating block is rotatably disposed in the middle of the locking mother block, one end of the lead screw is fixedly connected to the rotating block, and the other end of the lead screw passes through the locking daughter piece and is threadedly connected to the locking nut.
[0012] Preferably, a handle is provided on the outside of the fixed knife fixing box.
[0013] Preferably, the bottom of the movable receiving box is provided with movable rollers.
[0014] Preferably, a sealing ring is provided on the upper surface of the fixed knife fixing box.
[0015] The advantages of this utility model are as follows: When using this device, the feeding hopper and the fixed knife fixing box can be opened quickly, so that the cutting teeth on the fixed knife can be fully exposed, which facilitates cleaning with a high-pressure water gun and avoids disassembling the entire equipment. The locking component ensures the stability of the connection between the feeding hopper, the moving knife fixing base and the fixed knife fixing box. The movable receiving box facilitates the collection of plastic particles. Attached Figure Description
[0016] The accompanying drawings, which form part of this utility model, are used to provide a further understanding of the utility model. The illustrative embodiments of the utility model and their descriptions are used to explain the utility model and do not constitute an undue limitation of the utility model. In the drawings:
[0017] Figure 1 This is a schematic diagram of the structure of this utility model;
[0018] Figure 2 This is a schematic diagram of the structure of the moving blade and the fixed blade of this utility model used in conjunction;
[0019] Figure 3 This is a schematic diagram of the opening structure of the fixed blade fixing box and the feed hopper of this utility model;
[0020] Figure 4 This is a schematic diagram of the structure of the hydraulic limiting component of this utility model;
[0021] Figure 5 This is a schematic diagram of the structure of the hinged mounting base of this utility model;
[0022] Figure 6 This is a structural schematic diagram of the locking assembly of this utility model;
[0023] Figure 7 This is a front view of the locking assembly of this utility model;
[0024] Figure 8 This is a schematic diagram of the fixed knife fixing box of this utility model;
[0025] Figure 9 This is a structural schematic diagram of the mobile receiving box of this utility model.
[0026] Explanation of reference numerals in the attached figures:
[0027] 1. Base; 2. Movable receiving box; 3. Moving blade fixing base; 4. Drive motor; 5. Moving blade; 6. Fixed blade fixing box; 7. Fixed blade; 8. Feed hopper; 9. Hinge mounting base; 10. Locking assembly; 11. Hydraulic limit assembly; 111. First limit shaft; 112. Second limit shaft; 113. Hydraulic cylinder; 114. Connecting block; 91. Hinge mounting base body; 92. Rotating shaft; 93. Limiting plate; 31. Bearing seat; 101. Locking nut; 102. Locking component; 103. Rotating block; 104. Lead screw; 105. Locking nut; 61. Handle; 62. Sealing ring; 21. Moving roller. Detailed Implementation
[0028] It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.
[0029] In the description of this utility model, it should be understood that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating orientation or positional relationships based on the orientation or positional relationships shown in the accompanying drawings, are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, features defined with "first," "second," etc., may explicitly or implicitly include one or more of that feature. In the description of this utility model, unless otherwise stated, "a plurality of" means two or more.
[0030] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.
[0031] Example 1, combined with Figure 1 , Figure 2 and Figure 3 Explanation:
[0032] A powder preparation machine for plastics includes: a base 1, a movable receiving box 2, a moving blade fixing base 3, a drive motor 4, a moving blade 5, a fixed blade fixing box 6, a fixed blade 7, a feeding bin 8, a hinged mounting base 9, and a locking assembly 10.
[0033] The movable collection box 2 is located on the lower side of the base 1 and is used to collect plastic particles that fall from the base 1.
[0034] The moving blade fixing base 3 is fixedly mounted on the base 1 with screws. The moving blade 5 is rotatably mounted inside the moving blade fixing base 3. One end of the moving blade 5 is fixedly connected to the output end of the drive motor 4 fixedly mounted on the base 1.
[0035] The drive motor 4 can drive the moving blade 5 to rotate, so that the moving blade 5 and the fixed blade 7 can be used together to prepare plastic granules.
[0036] The fixed blade fixing box 6 is located on the upper side of the moving blade fixing base 3. The fixed blade fixing box 6 is hinged to the moving blade fixing base 3. The fixed blade fixing box 6 can be separated from the moving blade fixing base 3, thereby exposing the fixed blade 7, which facilitates cleaning of the fixed blade 7.
[0037] The fixed blade 7 is fixedly installed inside the fixed blade fixing box 6. The moving blade 5 and the fixed blade 7 are used together to crush plastic. The feed bin 8 is located on the upper side of the fixed blade fixing box 6. The feed bin 8 is hinged to the hinge mounting seat 9. The hinge mounting seat 9 is fixedly installed on the base 1. The feed bin 8 can be separated from the upper side of the fixed blade fixing box 6 through the hinge mounting seat 9.
[0038] The feed hopper 8 and the base 1 are connected by a locking assembly 10. This configuration improves the stability of the connection between the feed hopper 8, the moving blade fixing base 3, and the fixed blade fixing box 6 through the locking assembly 10.
[0039] Example 2, based on Example 1, combined with... Figure 4 Explanation:
[0040] It also includes a hydraulic limiting assembly 11, which includes a first limiting shaft 111, a second limiting shaft 112, a hydraulic cylinder 113, and a connecting block 114. The first limiting shaft 111 is fixedly installed on one side of the moving tool fixing base 3, the second limiting shaft 112 is fixedly installed on one side of the fixed tool fixing box 6, the lower side of the hydraulic cylinder 113 is hinged to the first limiting shaft 111, the output end of the hydraulic cylinder 113 is fixedly connected to the connecting block 114, and the connecting block 114 is hinged to the second limiting shaft 112.
[0041] With this configuration, the hydraulic limit assembly 11 can keep the fixed tool holder 6 in the fixed position after it is opened.
[0042] Example 3, based on Example 2, combined with Figure 5 Explanation:
[0043] The hinge mounting base 9 includes: a hinge mounting base body 91, a rotating shaft 92, and a limiting plate 93. The hinge mounting base body 91 is fixedly mounted on the base 1. The feed bin 8 is hingedly connected to the hinge mounting base body 91 through the rotating shaft 92. The limiting plate 93 is fixedly mounted on one side of the rotating shaft 92. The limiting plate 93 works in conjunction with the hinge mounting base body 91 to limit the rotation angle of the feed bin 8.
[0044] With this configuration, the limit plate 93 can restrict excessive rotation of the feed hopper 8 and provide some lateral support to the feed hopper 8.
[0045] Example 4, based on Example 3, combined with Figure 6 and Figure 7 Explanation:
[0046] A bearing seat 31 is provided on one side of the moving knife fixing base 3. The output shaft of the drive motor 4 is rotatably connected to the bearing seat 31. The bearing seat 31 is fixedly installed on the base 1. The bearing seat 31 is connected to the feed hopper 8 through the locking assembly 10.
[0047] The locking assembly 10 includes: a locking mother block 101, a locking daughter part 102, a rotating block 103, a lead screw 104, and a locking nut 105. The locking mother block 101 is fixedly installed on one side of the bearing seat 31, the locking daughter part 102 is fixedly installed on one side of the feed hopper 8, the rotating block 103 is rotatably disposed in the middle of the locking mother block 101, one end of the rotating block 103 is fixedly connected to the lead screw 104, and the other end of the lead screw 104 passes through the locking daughter part 102 and is threadedly connected to the locking nut 105.
[0048] With this configuration, during use, the lower end of the lead screw 104 is rotatably connected to the locking nut 101 via the rotating block 103. When locking is required, the lead screw 104 is snapped into the groove of the locking sub-part 102, and then the locking nut 105 is screwed down to make the locking nut 105 fit tightly against the upper surface of the locking sub-part 102, thereby maintaining the stability of the connection between the feed hopper 8, the moving knife fixing base 3, and the fixed knife fixing box 6.
[0049] Example 5, based on Example 4, combined with Figure 8 and Figure 9 Explanation:
[0050] A handle 61 is provided on the outside of the fixed tool fixing box 6. This design makes it easy to lift the fixed tool fixing box 6 using the handle 61.
[0051] The bottom of the movable receiving box 2 is equipped with movable rollers 21. This design facilitates the movement of the movable receiving box 2.
[0052] A sealing ring 62 is provided on the upper surface of the fixed blade fixing box 6. This design prevents plastic particles from escaping from the gap between the fixed blade fixing box 6 and the moving blade fixing base 3, and also reduces noise by improving sealing performance.
[0053] The working principle of this utility model is as follows: When cleaning the fixed blade, the locking nut 105 is unscrewed upwards, and then the screw 104 is rotated outwards to separate the locking nut 101 and the locking part 102. Then, the feed hopper 8 is lifted. As the feed hopper 8 is opened, the fixed blade fixing box 6 is opened using the handle 61 to expose the fixed blade 7. The fixed blade fixing box 6 is fixed in position by the hydraulic limit component 11. Then, the fixed blade 7 is cleaned with a high-pressure water gun. At this time, the moving blade 5 is also exposed and can also be cleaned with a high-pressure water gun. This utility model has a reasonable structure and is easy to use. It can quickly open the feed hopper and the fixed blade fixing box, so that the cutting teeth on the fixed blade are completely exposed, which facilitates cleaning with a high-pressure water gun and reduces maintenance costs.
[0054] For those skilled in the art, this utility model is not limited to the details of the exemplary embodiments described above, and can be implemented in other specific forms without departing from the spirit or essential characteristics of this utility model; therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this utility model is defined by the appended claims rather than the foregoing description. Therefore, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this utility model. No reference numerals in the claims should be construed as limiting the scope of the claims.
[0055] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any minor modifications, equivalent substitutions and improvements made to the above embodiments based on the technical essence of the present utility model should be included within the protection scope of the technical solution of the present utility model.
Claims
1. A powder preparation machine for plastics, characterized in that, include: The system comprises a base (1), a movable receiving box (2), a moving blade fixing base (3), a drive motor (4), a moving blade (5), a fixed blade fixing box (6), a fixed blade (7), a feeding bin (8), a hinged mounting base (9), and a locking assembly (10). The movable receiving box (2) is located on the lower side of the base (1). The moving blade fixing base (3) is fixedly installed on the base (1). The moving blade (5) is rotatably installed inside the moving blade fixing base (3). One end of the moving blade (5) is fixedly connected to the output end of the drive motor (4) fixedly installed on the base (1). The fixed blade fixing box (6) is set on the upper side of the moving blade fixing base (3). The fixed blade fixing box (6) is hinged to the moving blade fixing base (3). The fixed blade (7) is fixedly installed in the fixed blade fixing box (6). The moving blade (5) and the fixed blade (7) are used together to crush plastic. The feed bin (8) is set on the upper side of the fixed blade fixing box (6). The feed bin (8) is hinged to the hinge mounting seat (9). The hinge mounting seat (9) is fixedly installed on the base (1). The feed bin (8) and the base (1) are connected by the locking assembly (10).
2. The powder mill for plastic preparation according to claim 1, characterized in that, Also includes: The hydraulic limiting assembly (11) includes: a first limiting shaft (111), a second limiting shaft (112), a hydraulic cylinder (113), and a connecting block (114). The first limiting shaft (111) is fixedly installed on one side of the moving tool fixing base (3), and the second limiting shaft (112) is fixedly installed on one side of the fixed tool fixing box (6). The lower side of the hydraulic cylinder (113) is hinged to the first limiting shaft (111), and the output end of the hydraulic cylinder (113) is fixedly connected to the connecting block (114). The connecting block (114) is hinged to the second limiting shaft (112).
3. The powder mill for plastic preparation according to claim 1, characterized in that, The hinge mounting base (9) includes: a hinge mounting base body (91), a rotating shaft (92), and a limiting plate (93). The hinge mounting base body (91) is fixedly mounted on the base (1). The feed bin (8) is hinged to the hinge mounting base body (91) through the rotating shaft (92). The limiting plate (93) is fixedly mounted on one side of the rotating shaft (92). The limiting plate (93) works in conjunction with the hinge mounting base body (91) to limit the rotation angle of the feed bin (8).
4. The powder mill for plastic preparation according to claim 1, characterized in that, The moving knife fixing base (3) is provided with a bearing seat (31) on one side. The output shaft of the drive motor (4) is rotatably connected to the bearing seat (31). The bearing seat (31) is fixedly installed on the base (1). The bearing seat (31) is connected to the feed hopper (8) through the locking assembly (10).
5. A powder mill for plastic preparation according to claim 1, characterized in that, The locking assembly (10) includes: a locking mother block (101), a locking daughter piece (102), a rotating block (103), a lead screw (104), and a locking nut (105). The locking mother block (101) is fixedly installed on one side of the bearing seat (31), the locking daughter piece (102) is fixedly installed on one side of the feed hopper (8), the rotating block (103) is rotatably disposed in the middle of the locking mother block (101), and one end of the lead screw (104) is fixedly connected to the rotating block (103). The other end of the lead screw (104) passes through the locking daughter piece (102) and is threadedly connected to the locking nut (105).
6. A powder mill for plastic preparation according to claim 1, characterized in that, A handle (61) is provided on the outside of the fixed tool fixing box (6).
7. A powder mill for plastic preparation according to claim 1, characterized in that, The bottom of the movable receiving box (2) is provided with movable rollers (21).
8. A powder mill for plastic preparation according to claim 1, characterized in that, A sealing ring (62) is provided on the upper surface of the fixed tool fixing box (6).
Citation Information
Patent Citations
Powder machine for plastic preparation
CN210415120U