Pre-shredder

Abstract

The present application discloses a pre-shredder, including a frame, a support frame, a feeding hopper and a drop hopper, the support frame is fixed on the frame, the lower end face of the feeding hopper is connected to the upper end face of the support frame by bolts, the upper end face of the drop hopper is fixedly connected to the lower end face of the support frame, a main shaft is arranged in the support frame, a pair of fixed knife seats are fixed in the support frame on both sides of the main shaft, a row of fixed knives are arranged on the end face of the fixed knife seats facing the main shaft, and multiple rows of moving knives are arranged on the main shaft, and each row of moving knives can just pass through between adjacent moving knives in a row of moving knives. The pre-shredder cuts with the shearing cut formed by each group of moving knives and the fixed knives, and at the same time, each group of moving knives is closely staggered to improve the shearing force, and when it is rotated to cut, it can cut like scissors, and the effect on thin film materials is more significant.

Description

Technical Field

[0001] The present application relates to the technical field of shredders, in particular to a pre-shredder. Background Art

[0002] The residual film contains sand, plant roots, rods and other debris, which is very difficult to recycle. It is time-consuming and labor-intensive, and it is impossible to effectively process sediment film and wet film. Therefore, it is necessary to develop special mechanical equipment to shred, clean and recycle soft waste. In view of this, this paper designs a pre-shredder. Utility Model Content

[0003] The utility model aims to provide a pre-shredder to overcome the deficiencies in the prior art.

[0004] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0005] The embodiment of the present application discloses a pre-shredder, which is characterized by: comprising a frame, a supporting frame, a feeding hopper and a dropping hopper, the supporting frame is fixed on the frame, the lower end surface of the feeding hopper is connected to the upper end surface of the supporting frame by bolts, the upper end surface of the dropping hopper is fixedly connected to the lower end surface of the supporting frame, a main shaft is arranged in the supporting frame, a pair of fixed knife seats are fixed in the supporting frame on both sides of the main shaft, a row of fixed knives are arranged on the end surfaces of the fixed knife seats facing the main shaft, a plurality of rows of moving knives are arranged on the main shaft, and each row of the moving knives can just pass through between adjacent fixed knives in a row of fixed knives, one end of the main shaft extends outside the supporting frame and is rotatably connected to the outer wall of the supporting frame through a bearing seat, the other end of the main shaft extends outside the supporting frame and is connected to a coupling and a reducer in sequence, a driving motor is arranged in the frame, a pulley is fixedly provided on the output end of the driving motor, and a belt is wound between the pulley and the input end of the reducer.

[0006] Preferably, in the above-mentioned pre-shredder, the reducer is fixed on the frame.

[0007] Preferably, in the above-mentioned pre-shredder, the reducer is a planetary reducer, the belt is in a "V" shape, and the coupling is a drum-type gear coupling.

[0008] Preferably, in the above-mentioned pre-shredder, adjacent moving knives in each row of the moving knives are sequentially staggered along the circumferential direction of the main shaft.

[0009] Preferably, in the above-mentioned pre-shredder, the spacings between adjacent fixed knives are the same.

[0010] Preferably, in the above-mentioned pre-shredder, a cover for protecting the belt is provided on the frame.

[0011] Compared with the prior art, the advantages of the utility model are:

[0012] By placing the main shaft in the frame, the feeding hopper can be removed to replace and maintain the props, which is more convenient and prolongs the service life. A reduction motor is used to reduce the rotation speed, increase the torque, and increase the output. The shearing edge formed by each set of moving knives and fixed knives is used for cutting. At the same time, each set of moving knives is closely staggered to increase the shearing force. When it rotates and cuts, it can cut like scissors, which is more effective for film materials. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in the present application. For ordinary technicians in this field, it is easy to obtain other drawings based on these drawings without creative work.

[0014] Figure 1 The figure shows a three-dimensional view of a pre-shredder in a specific embodiment of the utility model. Figure 1 ;

[0015] Figure 2 The figure shows a three-dimensional view of a pre-shredder in a specific embodiment of the utility model. Figure 2 ;

[0016] Figure 3 Shown is a schematic structural diagram of a pre-shredder in a specific embodiment of the utility model. DETAILED DESCRIPTION

[0017] The following will be combined with the drawings in the embodiments of the utility model to describe the technical solutions in the embodiments of the utility model in detail. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0018] Ginseng Figures 1 to 3As shown, the pre-shredder in this embodiment includes a frame 1, a support frame 2, a feeding hopper 3 and a dropping hopper 4. The support frame 2 is fixed on the frame 1. The lower end surface of the feeding hopper 3 is connected to the upper end surface of the support frame 1 by a bolt 5. The upper end surface of the dropping hopper 4 is fixedly connected to the lower end surface of the support frame 2. A main shaft 6 is provided in the support frame 2. A pair of fixed knife seats 7 are fixed in the support frame 2 on both sides of the main shaft 6. A row of fixed knives 8 are provided on the end surface of the fixed knife seat 7 facing the main shaft 6. The main shaft 6 is provided with There are multiple rows of movable knives 9, and each row of movable knives 9 can just pass through between adjacent fixed knives 8 in a row of fixed knives 8. One end of the main shaft 3 extends to the outside of the supporting frame 2 and is rotatably connected to the outer wall of the supporting frame 2 through a bearing seat 10. The other end of the main shaft 6 extends to the outside of the supporting frame 2 and is connected to the coupling 11 and the reducer 12 in sequence. A driving motor 13 is provided in the frame 1, and a pulley 14 is fixedly sleeved at the output end of the driving motor 13. A belt 15 is wound between the pulley 14 and the input end of the reducer 12.

[0019] Furthermore, the reducer 12 is fixed on the frame 1 .

[0020] Furthermore, the reducer 12 is a planetary reducer, the belt 15 is in a "V" shape, and the coupling 11 is a drum-type gear coupling.

[0021] Furthermore, adjacent moving knives in each row of moving knives 9 are sequentially staggered along the circumferential direction of the main shaft.

[0022] Furthermore, the intervals between adjacent fixed knives 8 are the same.

[0023] Furthermore, a cover 16 for protecting the belt 15 is provided on the frame 1 .

[0024] In this technical solution, the main shaft is placed in the frame, and the feeding hopper can be removed to replace and maintain the props, which is more convenient and increases the service life; a reduction motor is used to reduce the rotation speed, increase the torque, and increase the output; the shearing edge formed by each set of moving knives and fixed knives is used for cutting, and each set of moving knives is closely staggered to increase the shearing force. When it rotates and cuts, it can cut like scissors, and the effect on film materials is more significant.

[0025] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the existence of other identical elements in the process, method, article or device including the elements.

[0026] The above is only a specific implementation method of the present application. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principles of the present application. These improvements and modifications should also be regarded as the scope of protection of the present application.

Claims

1. A pre-shredder, characterized in that: The machine comprises a frame, a supporting frame, a feeding hopper and a dropping hopper, the supporting frame is fixed on the frame, the lower end surface of the feeding hopper is connected to the upper end surface of the supporting frame by bolts, the upper end surface of the dropping hopper is fixedly connected to the lower end surface of the supporting frame, a main shaft is arranged in the supporting frame, a pair of fixed knife seats are fixed in the supporting frame on both sides of the main shaft, a row of fixed knives are arranged on the end surfaces of the fixed knife seats facing the main shaft, a plurality of rows of moving knives are arranged on the main shaft, each row of the moving knives can just pass through between adjacent fixed knives in a row of fixed knives, one end of the main shaft extends out of the supporting frame and is rotatably connected to the outer wall of the supporting frame through a bearing seat, the other end of the main shaft extends out of the supporting frame and is connected to a coupling and a reducer in sequence, a driving motor is arranged in the frame, a pulley is fixedly provided on the output end of the driving motor, a belt is wound between the pulley and the input end of the reducer.

2. A pre-shredder according to claim 1, characterized in that: The reducer is fixed on the frame.

3. A pre-shredder according to claim 1, characterized in that: The reducer is a planetary reducer, the belt is in a "V" shape, and the coupling is a drum-type gear coupling.

4. A pre-shredder according to claim 1, characterized in that: Adjacent moving knives in each row of the moving knives are staggered in sequence along the circumferential direction of the main shaft.

5. A pre-shredder according to claim 1, characterized in that: The distances between adjacent fixed knives are the same.

6. A pre-shredder according to claim 1, characterized in that: The frame is provided with a cover shell for protecting the belt.

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