Cutter crushing device of plastic crusher
By introducing an installation module into the cutting and crushing device of the plastic crusher, the problem of inconvenient maintenance of the blade assembly is solved, and the blade assembly can be quickly disassembled and easily maintained.
Patent Information
- Application Number
- CN202422642361.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-31
- Publication Date
- 2025-11-14
- Estimated Expiration
- 2034-10-31
AI Technical Summary
In existing plastic crushers, the blade assembly in the cutting and crushing device is installed in a spiral structure. This means that multiple blade assemblies must be removed sequentially during maintenance of the central blade assembly, making direct installation and removal inconvenient.
The installation module includes a fixing post, a retaining spring, a telescopic unit, and a baffle. By moving the baffle, the cutter assembly can be separated from the rotating shaft, allowing for individual disassembly and assembly of the cutter assembly, which is convenient for maintenance.
It enables quick assembly and disassembly of the tool set, facilitating maintenance and improving maintenance efficiency.
Smart Images

Figure CN223545527U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of crusher technology, and in particular to a cutting and crushing device for a plastic crusher. Background Technology
[0002] Currently, plastic crushers are used in the process of cutting plastic granules into pieces. Among them, the cutting and crushing device is the device that plays the crushing function in the plastic crusher. In the prior art, the patent application with application publication number CN108160273A discloses a cutting and crushing device for a plastic crusher, which has multiple sets of blades spirally arranged on a circular rotating shaft. The blades can be used to crush plastic granules.
[0003] However, in the above structure, multiple tool sets are installed in a spiral manner and can only be installed sequentially. When maintaining the central tool set, multiple tool sets need to be removed sequentially before the central tool set can be installed or removed. It is not possible to directly install or remove the central tool set, which is inconvenient for tool set maintenance. Summary of the Invention
[0004] The purpose of this utility model is to provide a cutting and crushing device for a plastic crusher, which solves the problem in the prior art that multiple sets of blades need to be removed one by one to load and unload the central blade set, making it impossible to directly load and unload the central blade set and inconvenient to maintain the blade set.
[0005] To achieve the above objectives, this utility model employs a plastic crusher cutting and shredding device, comprising a circular rotating shaft, multiple sets of blades, and an installation module. The circular rotating shaft is provided with multiple sets of blades, and each set of blades is provided with the installation module.
[0006] The mounting module includes a fixed post, a retaining spring, a telescopic unit, and a baffle. The circular shaft has a fixed groove, the blade assembly has a mounting groove, the retaining spring is disposed in the mounting groove, and both ends of the retaining spring are respectively connected to the blade assembly and the baffle. One end of the telescopic unit is fixedly connected to the blade assembly, and the other end of the telescopic unit is connected to the baffle. The fixed post is fixedly connected to the blade assembly, and the fixed post is adapted to the fixed groove.
[0007] The installation module further includes a paddle, which is fixedly connected to the baffle and located on the outer wall of the baffle.
[0008] The installation module also includes a buffer pad, which is fixedly connected to the circular shaft and located on the outer side wall of the circular shaft.
[0009] The telescopic unit includes a fixed cylinder and a sliding rod. The fixed cylinder is fixedly connected to the blade assembly and located in the mounting groove. One end of the sliding rod is slidably connected to the fixed cylinder, and the other end of the sliding rod is fixedly connected to the baffle. The supporting springs are respectively surrounding the outer walls of the fixed cylinder and the sliding rod.
[0010] The mounting module further includes a push spring and a push plate. One end of the push spring is connected to the circular rotating shaft and is located in the fixing groove. The push plate is connected to the other end of the push spring and is located in the fixing groove.
[0011] This utility model discloses a cutting and crushing device for a plastic crusher. The installation module mounts the blade assembly onto a rotating shaft. A fixing post is embedded in a fixing groove, and the blade assembly fits against the outer wall of the rotating shaft. Under the action of a retaining spring, a baffle moves to the outer wall of the rotating shaft. The blade assembly and the baffle cooperate to fix the blade assembly onto the rotating shaft. When removing any blade assembly, the baffle is moved towards the installation groove, exposing a distance between the baffle and the blade assembly corresponding to the diameter of the rotating shaft. At this point, the blade assembly can be separated from the rotating shaft, allowing for the installation and removal of the centrally located blade assembly for maintenance. Attached Figure Description
[0012] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0013] Figure 1 This is a schematic diagram of the cutting and crushing device of the plastic crusher of this utility model.
[0014] Figure 2 This is a top view of the structure of the cutting and crushing device of the plastic crusher of this utility model.
[0015] Figure 3 This is a side view of the structure of the cutting and crushing device of the plastic crusher of this utility model.
[0016] Figure 4 This is the utility model Figure 3 A cross-sectional view of the AA line structure.
[0017] 101-Circular rotating shaft, 102-Fixing groove, 103-Knife assembly, 104-Mounting groove, 105-Fixing post, 106-Holding spring, 107-Fixing cylinder, 108-Sliding rod, 109-Baffle, 110-Pulley, 111-Buffer pad, 112-Push spring, 113-Push plate. Detailed Implementation
[0018] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain this utility model, and should not be construed as limiting this utility model.
[0019] Please see Figures 1-4 ,in Figure 1 This is a schematic diagram of the cutting and shredding device of a plastic crusher. Figure 2 This is a top view of the cutting and shredding device of a plastic crusher. Figure 3 This is a side view of the structure of the cutting and crushing device of a plastic crusher. Figure 4 yes Figure 3 A cross-sectional view of the AA line structure.
[0020] This utility model provides a cutting and crushing device for a plastic crusher: including a circular rotating shaft 101, multiple sets of blades 103 and an installation module. The circular rotating shaft 101 is provided with multiple sets of blades 103, and each set of blades 103 is provided with the installation module.
[0021] The installation module includes a fixing post 105, a retaining spring 106, a telescopic unit, and a baffle 109. The circular shaft 101 has a fixing groove 102, and the blade assembly 103 has a mounting groove 104. The retaining spring 106 is disposed in the mounting groove 104, and its two ends are respectively connected to the blade assembly 103 and the baffle 109. One end of the telescopic unit is fixedly connected to the blade assembly 103, and the other end of the telescopic unit is connected to the baffle 109. The fixing post 105 is fixedly connected to the blade assembly 103, and the fixing post 105 is adapted to the fixing groove 102.
[0022] In this embodiment, the mounting module is used to mount the blade assembly 103 onto the circular shaft 101. The fixing post 105 is embedded in the fixing groove 102. The blade assembly 103 is attached to the outer wall of the circular shaft 101. Under the action of the retaining spring 106, the baffle 109 moves to the outer wall of the circular shaft 101. The blade assembly 103 and the baffle 109 cooperate to fix the blade assembly 103 onto the circular shaft 101. When removing any blade assembly 103, the baffle 109 is moved towards the mounting groove 104, so that a distance corresponding to the diameter of the circular shaft 101 is exposed between the baffle 109 and the blade assembly 103. At this time, the blade assembly 103 can be separated from the circular shaft 101, so that the centered blade assembly 103 can be installed and removed for maintenance.
[0023] Furthermore, the installation module also includes a paddle 110, which is fixedly connected to the baffle 109 and located on the outer side wall of the baffle 109.
[0024] In this embodiment, when any of the blade sets 103 are removed, the lever 110 is slid to move the baffle 109 toward the mounting groove 104, and the distance between the baffle 109 and the blade set 103 is exposed at a distance corresponding to the diameter of the circular shaft 101. At this time, the blade set 103 and the circular shaft 101 can be separated.
[0025] Furthermore, the mounting module also includes a buffer pad 111, which is fixedly connected to the circular shaft 101 and located on the outer side wall of the circular shaft 101.
[0026] In this embodiment, the buffer pad 111 is disposed between the circular shaft 101 and the blade assembly 103, and the buffer pad 111 can buffer the blade assembly 103 when the plastic crusher is operating.
[0027] Furthermore, the telescopic unit includes a fixed cylinder 107 and a sliding rod 108. The fixed cylinder 107 is fixedly connected to the blade assembly 103 and located in the mounting groove 104. One end of the sliding rod 108 is slidably connected to the fixed cylinder 107, and the other end of the sliding rod 108 is fixedly connected to the baffle 109. The supporting spring 106 surrounds the outer walls of the fixed cylinder 107 and the sliding rod 108 respectively.
[0028] In this embodiment, when any one of the blade assembly 103 is removed, the baffle 109 is moved towards the mounting groove 104, so that the distance between the baffle 109 and the blade assembly 103 is exposed, corresponding to the diameter of the circular shaft 101. At this time, the holding spring 106 is compressed. The holding spring 106 surrounds the outer walls of the fixed cylinder 107 and the sliding rod 108 respectively. The sliding rod 108 slides inside the fixed cylinder 107. The sliding rod 108 cooperates with the fixed cylinder 107 to improve the stability of the holding spring 106.
[0029] Furthermore, the mounting module also includes a push spring 112 and a push plate 113. One end of the push spring 112 is connected to the circular rotating shaft 101 and is located in the fixing groove 102. The push plate 113 is connected to the other end of the push spring 112 and is located in the fixing groove 102.
[0030] In this embodiment, the mounting module is used to mount the blade assembly 103 onto the circular shaft 101. The fixing post 105 is embedded in the fixing groove 102. The blade assembly 103 is attached to the outer wall of the circular shaft 101. Under the action of the retaining spring 106, the baffle 109 moves to the outer wall of the circular shaft 101. The blade assembly 103 and the baffle 109 cooperate to fix the blade assembly 103 onto the circular shaft 101. At this time, the fixing post 105 squeezes... Pressing the push plate 113 compresses the push spring 112, which has a rebound force. When removing any of the blade sets 103, the baffle 109 is moved towards the mounting groove 104, so that the distance between the baffle 109 and the blade set 103 is exposed, corresponding to the diameter of the circular shaft 101. At this time, under the rebound force of the push spring 112, the push plate 113 pushes the fixing post 105, increasing the separation speed between the blade set 103 and the circular shaft 101.
[0031] The above-disclosed embodiments are merely preferred embodiments of the present utility model and should not be construed as limiting the scope of the present utility model. Those skilled in the art can understand that implementing all or part of the above-described embodiments and making equivalent changes in accordance with the claims of the present utility model are still within the scope of the utility model.
Claims
1. A cutting and crushing device for a plastic crusher, comprising a circular rotating shaft and multiple sets of blades, wherein the circular rotating shaft is provided with multiple sets of blades, characterized in that, It also includes an installation module, which is provided on each of the blade sets; The mounting module includes a fixed post, a retaining spring, a telescopic unit, and a baffle. The circular shaft has a fixed groove, the blade assembly has a mounting groove, the retaining spring is disposed in the mounting groove, and both ends of the retaining spring are respectively connected to the blade assembly and the baffle. One end of the telescopic unit is fixedly connected to the blade assembly, and the other end of the telescopic unit is connected to the baffle. The fixed post is fixedly connected to the blade assembly, and the fixed post is adapted to the fixed groove.
2. The cutting and crushing device of the plastic crusher as described in claim 1, characterized in that, The installation module also includes a paddle, which is fixedly connected to the baffle and located on the outer wall of the baffle.
3. The cutting and crushing device of the plastic crusher as described in claim 1, characterized in that, The mounting module also includes a buffer pad, which is fixedly connected to the circular shaft and located on the outer side wall of the circular shaft.
4. The cutting and crushing device of the plastic crusher as described in claim 1, characterized in that, The telescopic unit includes a fixed cylinder and a sliding rod. The fixed cylinder is fixedly connected to the blade assembly and located in the mounting groove. One end of the sliding rod is slidably connected to the fixed cylinder, and the other end of the sliding rod is fixedly connected to the baffle. The supporting springs are respectively surrounding the outer walls of the fixed cylinder and the sliding rod.
5. The cutting and crushing device of the plastic crusher as described in claim 1, characterized in that, The mounting module also includes a push spring and a push plate. One end of the push spring is connected to the circular shaft and is located in the fixing groove. The push plate is connected to the other end of the push spring and is located in the fixing groove.
Citation Information
Patent Citations
Cutter fragmentation device of plastic crushing machine
CN108160273A