Cutter assembly for chopper

Abstract

The utility model relates to the technical field of food processing devices, in particular to a cutter assembly for a chopper, which comprises a cutter shaft, a transmission shaft, a first cutter assembly and a second cutter assembly, the bottom of the second cutter assembly is abutted against the top of the first cutter assembly, and a containing cavity is arranged on the middle lower portion of the inner side of the cutter shaft. The containing cavity is sequentially sleeved with a compression spring, a sliding base and a fixed base from top to bottom, the top of the compression spring abuts against the top of the containing cavity, the bottom of the compression spring abuts against the top of the sliding base, the sliding base is slidably connected to the middle of the containing cavity, and the bottom of the sliding base abuts against the top of the fixed base. The outer side wall of the fixed seat is in interference fit connection with the inner side wall of the bottom of the accommodating cavity, and the bottom surface of the fixed seat is flush with the bottom surface of the cutter shaft; according to the cutter assembly for the chopping machine, the compression spring is installed in the containing cavity, direct impact among parts can be reduced, the buffering function is achieved, the service life of the parts is prolonged, and meanwhile the operation safety of the machine is guaranteed.

Description

Technical Field

[0001] This utility model relates to the field of food processing equipment technology, specifically to a cutting blade assembly for a shredder. Background Technology

[0002] Existing food choppers generally include a machine head, a container cup, a lid, and food chopping blades. The lid is detachably mounted on the upper side of the container cup, and the machine head is detachably mounted on the upper side of the lid. The lid has a transmission hole in the middle, and the container cup has a positioning shaft protrusion in the middle of the bottom side of the inner cavity. The food chopping blades include a blade shaft and several blades connected to the blade shaft. The lower end of the blade shaft has a rotating shaft hole that mates with the positioning shaft protrusion, and the upper end of the blade shaft has a transmission joint. The lower end of the food chopping blades is mounted on the bottom side of the inner cavity of the container cup through the rotating shaft hole, and the upper end of the food chopping blades is connected to the transmission shaft of the machine head through the transmission hole.

[0003] Some food choppers on the market lack effective cushioning mechanisms to reduce direct impact between parts, which may lead to greater wear and tear on the parts and shorten their service life. Summary of the Invention

[0004] In order to overcome the shortcomings and deficiencies of the existing technology, the purpose of this utility model is to provide a cutting blade assembly for a shredder.

[0005] The objective of this utility model is achieved through the following technical solution: A cutting blade assembly for a shredder includes a blade shaft, a drive shaft fixed to the top of the blade shaft, a first cutting blade assembly fixed to the bottom of the blade shaft, and a second cutting blade assembly sleeved on the outer wall of the blade shaft. The bottom of the second cutting blade assembly abuts against the top of the first cutting blade assembly. A receiving cavity is provided in the lower middle part of the inner side of the blade shaft. A compression spring, a sliding seat, and a fixed seat are sequentially sleeved in the receiving cavity from top to bottom. The top of the compression spring abuts against the top of the receiving cavity, and the bottom of the compression spring abuts against the top of the sliding seat. The sliding seat is slidably connected to the middle part of the receiving cavity, and the bottom of the sliding seat abuts against the top of the fixed seat. The outer wall of the fixed seat is interference-fitted with the inner wall of the bottom of the receiving cavity, and the bottom surface of the fixed seat is flush with the bottom surface of the blade shaft.

[0006] Furthermore, the first cutting blade assembly includes a first blade holder fixed to the bottom of the cutter shaft and two first arc-shaped blades respectively fixed to both sides of the first blade holder, with a first through hole at one end of the two first arc-shaped blades near the first blade holder; the second cutting blade assembly includes a second blade holder sleeved on the outer wall of the bottom of the cutter shaft and two second arc-shaped blades respectively fixed to both sides of the second blade holder, with a second through hole at one end of the two second arc-shaped blades near the second blade holder.

[0007] Furthermore, the two first arc-shaped blades are respectively fixed to the top of one side of the first tool holder and the bottom of the other side of the first tool holder; the two second arc-shaped blades are respectively fixed to the top of one side of the second tool holder and the bottom of the other side of the second tool holder.

[0008] Furthermore, the inner sidewall of the first tool holder is provided with a plurality of first limiting grooves, and the outer sidewall of the fixing seat is fixed with a first protrusion corresponding to the position of each first limiting groove, and each first protrusion is embedded in the corresponding first limiting groove.

[0009] Furthermore, the inner sidewall of the second tool holder is provided with a plurality of second limiting grooves, and the outer sidewall of the bottom of the tool shaft is fixed with a second protrusion corresponding to the position of each second limiting groove, and each second protrusion is engaged in the corresponding second limiting groove.

[0010] Furthermore, a first positioning groove is provided on the top of the first tool holder, and a second positioning groove is provided on the bottom of the second tool holder corresponding to the position of the first positioning groove.

[0011] Furthermore, the two first arc-shaped blades and the two second arc-shaped blades are arranged alternately.

[0012] Furthermore, the bottom of the sliding seat is provided with a groove, the top of the sliding seat is fixed with a sleeve, and the bottom of the compression spring is sleeved on the outside of the sleeve.

[0013] Furthermore, a positioning post protrudes downward from the top of the receiving cavity, and the top of the compression spring is sleeved on the outside of the positioning post.

[0014] Furthermore, grip grooves are provided on both sides of the top of the cutter shaft, and several anti-slip strips are fixed in the grip grooves.

[0015] The beneficial effects of this utility model are as follows: The shredder cutter assembly of this utility model uses a compression spring installed in the receiving cavity of the cutter shaft. When the cutter head is installed on the material container, the support column at the bottom of the material container pushes the sliding seat upwards, compressing the spring. The cutter head then drives the first and second cutter assemblies to rotate via the drive shaft. After the cutter head is removed, the compression spring returns to its extended state, and the first and second cutter assemblies stop rotating. This shredder cutter assembly of this utility model reduces direct impact between components by using a compression spring, providing a buffering effect, extending the service life of the components, and ensuring the safety of machine operation. Attached Figure Description

[0016] Figure 1 This is a perspective view of the present invention.

[0017] Figure 2 This is an exploded perspective view of this utility model.

[0018] Figure 3 This is a cross-sectional view of the cutting assembly described in this utility model during operation.

[0019] Figure 4 This is a cross-sectional view of the cutter assembly described in this utility model when it is disconnected.

[0020] Figure 5 This is a perspective view of the cutter shaft and the first cutter holder described in this utility model.

[0021] Figure 6 This is a perspective view of the second cutting blade assembly of this utility model.

[0022] Figure 7 This is a perspective view of the sliding seat described in this utility model.

[0023] The attached figures are labeled as follows: 1. Cutter shaft, 11. Receiving cavity, 12. Connecting groove, 13. Second protrusion, 14. Grip groove, 15. Anti-slip strip, 2. Drive shaft, 3. First cutter assembly, 31. First cutter holder, 311. First limiting groove, 312. First positioning groove, 32. First arc-shaped blade, 33. First through hole, 4. Second cutter assembly, 41. Second cutter holder, 411. Second limiting groove, 412. Second positioning groove, 42. Second arc-shaped blade, 43. Second through hole, 5. Compression spring, 6. Sliding seat, 61. Groove, 62. Sleeve, 7. Fixing seat, 71. First protrusion, 8. Positioning post, 10. Support post. Detailed Implementation

[0024] To facilitate understanding by those skilled in the art, the following description is provided in conjunction with embodiments and appendices. Figure 1-7 The present invention will be further described below. The content mentioned in the embodiments is not intended to limit the present invention.

[0025] See Figure 1-7A chopper cutter assembly includes a cutter shaft 1, a drive shaft 2 fixed to the top of the cutter shaft 1, a first cutter assembly 3 fixed to the bottom of the cutter shaft 1, and a second cutter assembly 4 sleeved on the outer wall of the cutter shaft 1. The bottom of the second cutter assembly 4 abuts against the top of the first cutter assembly 3. A receiving cavity 11 is formed in the lower middle part of the inner side of the cutter shaft 1. A compression spring 5, a sliding seat 6, and a fixed seat 7 are sequentially sleeved in the receiving cavity 11 from top to bottom. The top of the compression spring 5 abuts against the top of the receiving cavity 11, and the bottom of the compression spring 5 abuts against the top of the sliding seat 6. The sliding seat 6 is slidably connected to the middle of the receiving cavity 11, and the bottom of the sliding seat 6 abuts against the top of the fixed seat 7. The outer wall of the fixed seat 7 is interference-fitted with the inner wall of the bottom of the receiving cavity 11, and the bottom surface of the fixed seat 7 is flush with the bottom surface of the cutter shaft 1. A connecting groove 12 that mates with the drive shaft 2 is formed on the top of the cutter shaft 1, and the bottom of the drive shaft 2 is inserted into the connecting groove 12. The bottom of the drive shaft 2 and the cross-section of the connecting groove 12 are both quincunx-shaped. It is understood that in other embodiments, the cross-sectional shapes of the drive shaft 2 and the connecting groove 12 can also be hexagonal or other polygonal shapes. The above structure facilitates the fixing of the cutter shaft 1 and the drive shaft 2.

[0026] The cutting assembly for a shredder of this invention utilizes a compression spring 5 installed within the receiving cavity 11 of the cutter shaft 1. When the cutting head is mounted onto the material container, the support column 10 at the bottom of the material container pushes the sliding seat 6 upwards, compressing the compression spring 5. The cutting head then drives the first cutting assembly 3 and the second cutting assembly 4 to rotate via the drive shaft. After the cutting head is removed, the compression spring 5 returns to its extended state, and the cutting assembly stops rotating. This cutting assembly for a shredder reduces direct impact between components by employing the compression spring 5, providing a buffering effect, protecting the cutter shaft 1 and the drive shaft 2, extending their service life, and ensuring the safety of machine operation.

[0027] In this embodiment, the first cutting blade assembly 3 includes a first blade holder 31 fixed to the bottom of the blade shaft 1 and two first arc-shaped blades 32 respectively fixed to both sides of the first blade holder 31. A first through hole 33 is provided at one end of each of the two first arc-shaped blades 32 near the first blade holder 31. The second cutting blade assembly 4 includes a second blade holder 41 sleeved on the outer wall of the bottom of the blade shaft 1 and two second arc-shaped blades 42 respectively fixed to both sides of the second blade holder 41. A second through hole 43 is provided at one end of each of the two second arc-shaped blades 42 near the second blade holder 41. The bottom of the second blade holder 41 abuts against the top of the first blade holder 31. The arc-shaped blades can better adapt to the shape of the food, providing uniform cutting and improving cutting efficiency. The first through hole 33 and the second through hole 43 help reduce friction between the arc-shaped blades and the food during cutting, preventing the arc-shaped blades from sticking to the food and making cutting smoother.

[0028] In this embodiment, two first arc-shaped blades 32 are respectively fixed to the top of one side of the first blade holder 31 and the bottom of the other side of the first blade holder 31; two second arc-shaped blades 42 are respectively fixed to the top of one side of the second blade holder 41 and the bottom of the other side of the second blade holder 41. By setting the two first arc-shaped blades 32 and the two second arc-shaped blades 42 in different planes, food on different planes can be cut, food can be chopped up faster, and cutting efficiency can be improved.

[0029] In this embodiment, the inner sidewall of the first tool holder 31 is provided with a plurality of first limiting grooves 311, and the outer sidewall of the fixing seat 7 is fixed with a first protrusion 71 corresponding to the position of each first limiting groove 311. Each first protrusion 71 is embedded in the corresponding first limiting groove 311. The fixing seat 7 is used to support the sliding seat 6 and prevent the bottom of the compression spring 5 from losing its support point and disengaging from the receiving cavity 11. The first limiting grooves 311 and the first protrusions 71 are provided to fix the fixing seat 7 into the receiving cavity 11 and prevent the fixing seat 7 from rotating.

[0030] In this embodiment, the inner sidewall of the second cutter holder 41 is provided with a plurality of second limiting grooves 411, and the outer sidewall of the bottom of the cutter shaft 1 is fixed with a second protrusion 13 corresponding to the position of each second limiting groove 411. Each second protrusion 13 is engaged in the corresponding second limiting groove 411. The setting of the second limiting grooves 411 and the second protrusions 13 can restrict the degree of freedom of the second cutter holder 41 and prevent the second cutting blade assembly 4 from moving relative to the cutter shaft 1 due to excessive force.

[0031] In this embodiment, the top of the first cutter holder 31 is provided with a first positioning groove 312, and the bottom of the second cutter holder 41 is provided with a second positioning groove 412 corresponding to the position of the first positioning groove 312. The above structure makes the relative position between the cutter holders more accurate, thereby improving the positioning accuracy of the first cutting blade assembly 3 and the second cutting blade assembly 4, and also makes the installation and disassembly of the first cutter holder 31 and the second cutter holder 41 more convenient and quick.

[0032] In this embodiment, the two first arc-shaped blades 32 and the two second arc-shaped blades 42 are arranged alternately. The two first arc-shaped blades 32 and the two second arc-shaped blades 42 combine to form a windmill shape. The alternate arrangement ensures that the food is cut multiple times when passing through the cutting area, which can quickly chop the food and improve cutting efficiency.

[0033] In this embodiment, the bottom of the sliding seat 6 is provided with a groove 61, and the top of the sliding seat 6 is fixed with a sleeve 62. The bottom of the compression spring 5 is sleeved on the outside of the sleeve 62. The groove 61 is used to insert into the support column 10 at the bottom of the container cup. The groove 61 enables the machine head to drive the blade shaft 1 to rotate on the support column 10, thereby cutting the food. The sleeve 62 provides a fixed position and support point for the bottom of the compression spring 5, and also prevents the compression spring 5 from twisting and deforming during compression.

[0034] In this embodiment, a positioning post 8 protrudes downward from the top of the receiving cavity 11, and the top of the compression spring 5 is sleeved on the outside of the positioning post 8. This structure is designed to limit the compression of the spring 5 during compression, preventing it from twisting or deforming.

[0035] In this embodiment, grip grooves 14 are provided on both sides of the top of the cutter shaft 1, and several anti-slip strips 15 are fixed in the grip grooves 14. The above structure facilitates the removal of the cutter assembly.

[0036] The above embodiments are preferred implementations of this utility model. In addition, this utility model can also be implemented in other ways. Any obvious substitutions without departing from the concept of this utility model are within the protection scope of this utility model.

Claims

1. A cutting assembly for a shredder, comprising a cutter shaft, a drive shaft fixed to the top of the cutter shaft, a first cutting assembly fixed to the bottom of the cutter shaft, and a second cutting assembly sleeved on the outer wall of the cutter shaft, wherein the bottom of the second cutting assembly abuts against the top of the first cutting assembly, characterized in that: A receiving cavity is provided in the lower middle part of the inner side of the cutter shaft. A compression spring, a sliding seat and a fixed seat are sequentially fitted in the receiving cavity from top to bottom. The top of the compression spring abuts against the top of the receiving cavity, and the bottom of the compression spring abuts against the top of the sliding seat. The sliding seat is slidably connected to the middle of the receiving cavity, and the bottom of the sliding seat abuts against the top of the fixed seat. The outer wall of the fixed seat is interference-fitted with the inner wall of the bottom of the receiving cavity, and the bottom surface of the fixed seat is flush with the bottom surface of the cutter shaft.

2. The cutting blade assembly for a shredder according to claim 1, characterized in that: The first cutting blade assembly includes a first blade holder fixed to the bottom of the cutter shaft and two first arc-shaped blades respectively fixed to both sides of the first blade holder, with a first through hole at one end of the two first arc-shaped blades near the first blade holder; the second cutting blade assembly includes a second blade holder sleeved on the outer side wall of the bottom of the cutter shaft and two second arc-shaped blades respectively fixed to both sides of the second blade holder, with a second through hole at one end of the two second arc-shaped blades near the second blade holder.

3. The cutting blade assembly for a shredder according to claim 2, characterized in that: The two first arc-shaped blades are respectively fixed to the top of one side of the first tool holder and the bottom of the other side of the first tool holder; the two second arc-shaped blades are respectively fixed to the top of one side of the second tool holder and the bottom of the other side of the second tool holder.

4. The cutting blade assembly for a shredder according to claim 2, characterized in that: The inner sidewall of the first tool holder is provided with a plurality of first limiting grooves, and the outer sidewall of the fixed seat is fixed with a first protrusion corresponding to the position of each first limiting groove, and each first protrusion is embedded in the corresponding first limiting groove.

5. A cutting blade assembly for a shredder according to claim 2, characterized in that: The inner sidewall of the second tool holder is provided with multiple second limiting grooves, and the outer sidewall of the bottom of the tool shaft is fixed with a second protrusion corresponding to the position of each second limiting groove. Each second protrusion is engaged in the corresponding second limiting groove.

6. A cutting blade assembly for a shredder according to claim 2, characterized in that: The top of the first tool holder has a first positioning groove, and the bottom of the second tool holder has a second positioning groove corresponding to the position of the first positioning groove.

7. A cutting blade assembly for a shredder according to claim 2, characterized in that: The two first arc-shaped blades and the two second arc-shaped blades are arranged alternately.

8. A cutting blade assembly for a shredder according to claim 1, characterized in that: The bottom of the sliding seat has a groove, the top of the sliding seat has a sleeve fixed thereon, and the bottom of the compression spring is sleeved on the outside of the sleeve.

9. A cutting blade assembly for a shredder according to claim 1, characterized in that: The top of the receiving cavity is provided with a positioning post protruding downwards, and the top of the compression spring is sleeved on the outside of the positioning post.

10. A cutting blade assembly for a shredder according to claim 1, characterized in that: Grip grooves are provided on both sides of the top of the cutter shaft, and several anti-slip strips are fixed in the grip grooves.

Images