An electric meat grinder with replaceable blades

Abstract

This invention discloses an electric meat grinder with replaceable blades, relating to the field of meat grinders. It includes a base frame, a transmission box, a drive motor, a feeding tube, and a winding screw. The transmission box is fixedly mounted on the upper end of the base frame, the drive motor is fixedly mounted on the rear end of the transmission box, the feeding tube is located at the front end of the transmission box, and the winding screw is movably mounted inside the feeding tube. A blade connector is welded to the front end of the winding screw. This electric meat grinder with replaceable blades allows for rapid replacement of both the meat grinder blades and the discharge screen. By replacing the spare switching ring with different meat grinder blades, different discharge screens with different apertures can be used.

Description

Technical Field

[0001] This invention relates to the field of meat grinders, and particularly to an electric meat grinder with replaceable blades. Background Technology

[0002] An electric meat grinder is an electrical appliance for processing meat. It uses a motor to drive a screw to propel the meat and uses the rotation of blades to cut the meat into small pieces. It is widely used in various meat processing applications.

[0003] Chinese patent publication number "CN212549900U" discloses "an electric meat grinder, including a frame, a discharge pipe fixed on the frame, a feed hopper fixedly connected above the discharge pipe via a feed pipe, and multiple limiting blocks fixed on the inner wall of the opening end of the discharge pipe." Although it can effectively control the speed at which meat pieces enter the discharge pipe and prevent meat pieces from accumulating at the cutting position and being severely squeezed, affecting the texture of the minced meat, the device has several drawbacks when used for grinding meat with different requirements. Because the blades are installed inside the device, they can only be replaced by disassembling the device, resulting in slow blade replacement speed. It is also inconvenient to quickly replace the mesh plate, which brings inconvenience to the processing of different types of meat. Each time the blades and mesh plate are replaced, only one set can be replaced at a time, further reducing the applicability of the device. In addition, the fact that the blades and mesh plate are sealed inside the device also makes cleaning difficult. Summary of the Invention

[0004] The main objective of this invention is to provide an electric meat grinder with replaceable blades, which can effectively solve the technical problems mentioned in the background art.

[0005] To achieve the above objectives, the technical solution adopted by the present invention is as follows:

[0006] An electric meat grinder with replaceable blades includes a base frame, a transmission box, a drive motor, a feeding tube, and a winding screw. The transmission box is fixedly mounted on the upper end of the base frame, the drive motor is fixedly mounted on the rear end of the transmission box, the feeding tube is located at the front end of the transmission box, and the winding screw is movably mounted inside the feeding tube. A blade connector is welded to the front end of the winding screw. A switching mechanism is fixedly mounted on the upper outer side of the feeding tube. Two switching collars are provided in front of the switching mechanism. A threaded ring is threaded on the inner side of the switching collar, and a lace ring is integrally formed at the front end of the threaded ring. A discharge screen is provided on the inner side of the switching collar behind the threaded ring. A rotating seat is fixedly mounted on the rear end of the discharge screen. A docking block is movably mounted on the rear end of the rotating seat. A blade mounting ring is placed at the rear end of the docking block. A meat grinder blade is welded to the outer side of the blade mounting ring. A blade holder structure is fixedly mounted on the outer side of the feeding tube behind the switching mechanism.

[0007] As a further embodiment of the present invention, a support frame is fixedly installed at the upper end of the base frame in front of the transmission box, the support frame is fixedly connected to the lower outer side of the conveying pipe, and support pads are fixedly installed at the four corners of the lower end of the base frame.

[0008] As a further embodiment of the present invention, the rear end of the winding screw protrudes behind the winding tube, and the rear end of the winding screw is fixedly connected to the rotating shaft of the transmission box.

[0009] As a further embodiment of the present invention, the switching mechanism includes a rotating rod mounting base, a switching rotating rod, a return spring, a collar connecting block, and a switching handle. The rotating rod mounting base is fixedly installed on the upper outer side of the conveying pipe. The switching rotating rod moves through the top of the rotating rod mounting base. The return spring is fixedly installed on the rear end of the rotating rod mounting base. The collar connecting block is welded to the front end of the switching rotating rod. The switching handle is fixedly installed on the front end of the collar connecting block.

[0010] As a further embodiment of the present invention, the reset spring is sleeved on the outside of the switching rod, and the end of the reset spring away from the rod mounting seat is fixedly connected to the switching rod. The two switching collars are respectively fixedly installed at the upper and lower ends of the collar connecting block.

[0011] As a further embodiment of the present invention, the switching collar is fitted around the front end of the conveying pipe, the blade connector is inserted into the blade mounting ring for connection, and the conveying screw, the meat grinder blade and the discharge screen are arranged sequentially from back to front.

[0012] As a further embodiment of the present invention, the lace ring is located in front of the conveying pipe, and the threaded ring presses the discharge mesh plate and is fixedly connected to the conveying pipe.

[0013] As a further embodiment of the present invention, the tool holder structure includes a support column, a mounting collar, a switching mounting rod, a tool holder rod, and tool holder connectors. The support column is fixedly installed on the outside of the winch pipe. The mounting collar is welded to the upper end of the support column. The switching mounting rod movably passes through the mounting collar. The tool holder rod is fixedly installed at the front end of the switching mounting rod. Multiple tool holder connectors are welded to the front corner of the tool holder rod.

[0014] As a further embodiment of the present invention, the tool holder rod and the tool holder connector are located behind the upper switching collar, the tool holder rod is arranged in a cross shape, and the tool holder connector is also fitted with a blade mounting ring.

[0015] As a further embodiment of the present invention, a feeding pipe is fixedly installed on the upper outer side of the conveying pipe, located behind the supporting upright, and the feeding pipe communicates with the interior of the conveying pipe.

[0016] Compared with the prior art, the present invention has the following beneficial effects: when it is necessary to replace the discharge screen and meat grinder blades, the lower switching ring can be separated from the feeding pipe, and then the upper and lower switching rings can be switched. The switched switching ring is connected to the feeding pipe to realize the quick replacement of the meat grinder blades and the discharge screen, which eliminates the need to replace the meat grinder blades and the discharge screen. It is more convenient to use for meat grinding and pulverizing with different requirements. Moreover, the switched switching ring is located on the top after replacement. The quick switching allows the meat grinder blades and the discharge screen to be exposed to the outside, which also makes it easier to clean the meat grinder blades and the discharge screen.

[0017] When the spare meat grinder blades need to be replaced, multiple sets of meat grinder blades are installed on the switching mounting rod. By moving the blade holder rod and the blade holder connector and engaging with the switching collar, the meat grinder blades in the switching collar are moved out, and another set of blade mounting rings is moved to the docking block in the switching collar for connection. This allows the spare meat grinder blades in the switching collar to be replaced. Therefore, when switching the spare switching collar, different meat grinder blades can be used, realizing the rapid replacement of more types of meat grinder blades, further facilitating the processing of different types of meat and improving the applicability of the device.

[0018] When the spare discharge screen needs to be replaced, the discharge screen can be removed from the switching ring by disassembling and installing the lace ring and threaded ring. Different models of discharge screens can then be reinstalled, thus replacing the discharge screen in the spare switching ring. Therefore, when switching the spare switching ring, discharge screens with different apertures can be used, enabling quick replacement of more types of discharge screens. It can also be used with different models of meat grinder blades, further facilitating the processing of different types of meat and improving the applicability of the device. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the overall structure of an electric meat grinder with replaceable blades according to the present invention.

[0020] Figure 2 This is a side view of an electric meat grinder with replaceable blades according to the present invention.

[0021] Figure 3 This is a partial side view of an electric meat grinder with replaceable blades according to the present invention.

[0022] Figure 4 This is a cross-sectional view of the feeding tube in an electric meat grinder with replaceable blades according to the present invention.

[0023] Figure 5 This is a top sectional view of the feeding tube in an electric meat grinder with replaceable blades according to the present invention.

[0024] Figure 6This is a split view of the blade mounting ring and the docking block in an electric meat grinder with replaceable blades according to the present invention;

[0025] Figure 7 This is a split view of the threaded ring and discharge mesh plate in an electric meat grinder with replaceable blades according to the present invention.

[0026] In the diagram: 1. Base frame; 2. Support foot pad; 3. Transmission box; 4. Drive motor; 5. Support frame; 6. Conveying pipe; 7. Feeding pipe; 8. Conveying screw; 9. Blade connector; 10. Switching mechanism; 11. Rotating rod mounting seat; 12. Switching rotating rod; 13. Return spring; 14. Collar connecting block; 15. Switching handle; 16. Switching collar; 17. Lace ring; 18. Threaded ring; 19. Discharge mesh plate; 20. Rotating seat; 21. Connecting block; 22. Blade mounting ring; 23. Meat grinder blade; 24. Blade holder structure; 25. Supporting upright; 26. Mounting collar; 27. Switching mounting rod; 28. Blade holder rod; 29. ​​Blade holder connector. Detailed Implementation

[0027] To make the technical means, creative features, objectives and effects of this invention easier to understand, the invention will be further described below in conjunction with specific embodiments.

[0028] like Figures 1-7 As shown, an electric meat grinder with replaceable blades includes a base frame 1, a transmission box 3, a drive motor 4, a feeding tube 6, and a winding screw 8. The transmission box 3 is fixedly installed on the upper end of the base frame 1, the drive motor 4 is fixedly installed on the rear end of the transmission box 3, the feeding tube 6 is located at the front end of the transmission box 3, and the winding screw 8 is movably installed inside the feeding tube 6. A blade coupling 9 is welded to the front end of the winding screw 8. A switching mechanism 10 is fixedly installed on the upper outer side of the feeding tube 6, and two switching collars 16 are provided in front of the switching mechanism 10. A threaded ring 18 is installed on the inner side of the switching ring 16. A lace ring 17 is integrally formed at the front end of the threaded ring 18. A discharge screen plate 19 is provided on the inner side of the switching ring 16 behind the threaded ring 18. A rotating seat 20 is fixedly installed at the rear end of the discharge screen plate 19. A docking block 21 is movably installed at the rear end of the rotating seat 20. A blade mounting ring 22 is placed at the rear end of the docking block 21. A meat grinder blade 23 is welded to the outer side of the blade mounting ring 22. A knife holder structure 24 is fixedly installed on the outer side of the feeding pipe 6 behind the switching mechanism 10.

[0029] In this embodiment, a support frame 5 is fixedly installed at the upper end of the base frame 1 in front of the transmission box 3. The support frame 5 is fixedly connected to the lower outer side of the conveying pipe 6 to support and fix the conveying pipe 6. Support feet 2 are fixedly installed at the four corners of the lower end of the base frame 1, and the support feet 2 serve to place the device as a whole.

[0030] In this embodiment, the rear end of the winding screw 8 protrudes behind the winding tube 6, and the rear end of the winding screw 8 is fixedly connected to the rotating shaft of the transmission box 3. The transmission box 3 transmits the output power of the drive motor 4 to the winding screw 8.

[0031] In this embodiment, the switching mechanism 10 includes a rotating rod mounting base 11, a switching rotating rod 12, a return spring 13, a collar connecting block 14, and a switching handle 15. The rotating rod mounting base 11 is fixedly installed on the upper outer side of the conveying pipe 6. The switching rotating rod 12 moves through the top of the rotating rod mounting base 11. The return spring 13 is fixedly installed on the rear end of the rotating rod mounting base 11. The collar connecting block 14 is welded to the front end of the switching rotating rod 12. The switching handle 15 is fixedly installed on the front end of the collar connecting block 14. The switching rotating rod 12 moves and rotates around the rotating rod mounting base 11. The return spring 13 returns the moving switching rotating rod 12 to its original position by contracting and rebounding.

[0032] In this embodiment, the reset spring 13 is sleeved on the outside of the switching rod 12. The end of the reset spring 13 away from the rod mounting base 11 is fixedly connected to the switching rod 12. The two switching collars 16 are respectively fixedly installed at the upper and lower ends of the collar connecting block 14. The collar connecting block 14 switches the position of the two switching collars 16 by rotation.

[0033] In this embodiment, the switching collar 16 is fitted onto the front end of the conveying pipe 6, and the blade connector 9 is inserted into the blade mounting ring 22 for connection. The conveying screw 8, the meat grinder blade 23, and the discharge screen 19 are arranged in sequence from back to front. When the conveying screw 8 rotates, it also drives the blade mounting ring 22 and the meat grinder blade 23 to rotate through the blade connector 9.

[0034] In this embodiment, the lace ring 17 is located in front of the conveying pipe 6, and the threaded ring 18 presses the discharge mesh plate 19 and fixes it to the conveying pipe 6. The threaded ring 18 plays the role of installing and fixing the discharge mesh plate 19.

[0035] In this embodiment, the tool holder structure 24 includes a support rod 25, a mounting collar 26, a switching mounting rod 27, a tool holder rod 28, and a tool holder connector 29. The support rod 25 is fixedly installed on the outside of the winch pipe 6. The mounting collar 26 is welded to the upper end of the support rod 25. The switching mounting rod 27 movably passes through the mounting collar 26. The tool holder rod 28 is fixedly installed at the front end of the switching mounting rod 27. Multiple tool holder connectors 29 are welded to the front corner of the tool holder rod 28. The switching mounting rod 27 moves the tool holder rod 28 and switches the tool holder connectors 29 by moving and rotating.

[0036] In this embodiment, the knife holder rod 28 and the knife holder connector 29 are located behind the upper switching collar 16. The knife holder rod 28 is arranged in a cross shape, and the knife holder connector 29 is also fitted with a blade mounting ring 22. Multiple knife holder connectors 29 are fitted with multiple blade mounting rings 22 and meat grinder blades 23 to accommodate the replacement of different models of meat grinder blades 23.

[0037] In this embodiment, a feeding pipe 7 is fixedly installed on the upper outer side of the conveying pipe 6, behind the support column 25. The feeding pipe 7 is connected to the interior of the conveying pipe 6 and is used to feed meat into the conveying pipe 6.

[0038] It should be noted that the present invention is an electric meat grinder with replaceable blades. In use, the operation of the drive motor 4 drives the winding screw 8 in the conveying tube 6 to rotate through the transmission box 3. When the winding screw 8 rotates, it also drives the blade mounting ring 22 and the meat grinding blade 23 to rotate through the blade connector 9. The meat to be minced is fed into the conveying tube 6 through the feeding pipe 7. Then the meat comes into contact with the rotating winding screw 8, so that the winding screw 8 squeezes the meat and forces the meat to be pushed towards the meat grinding blade 23. The relative motion between the rotating meat grinding blade 23 and the discharge screen 19 is generated, thereby mincing the raw meat into granules. The minced meat granules are discharged through the holes on the discharge screen 19.

[0039] When it is necessary to replace the discharge screen 19 and the meat grinder blade 23, the spare discharge screen 19 and meat grinder blade 23 are installed in the upper switching collar 16. Pull the switching handle 15 forward and rotate it, which drives the collar connecting block 14 and the switching rod 12 to move forward and rotate, thereby separating the lower switching collar 16 from the feeding pipe 6. At the same time, the blade mounting ring 22 separates from the blade connector 9. Then, the upper and lower switching collar 16 are rotated to switch positions. After releasing the switching handle 15, the return spring 13 drives the collar connecting block 14 and the switching rod 12 to move backward and reset, thereby connecting the switched switching collar 16 to the feeding pipe 6. Then, the switched blade mounting ring 22 is connected to the blade connector 9 to achieve quick replacement of the meat grinder blade 23 and also quick replacement of the discharge screen 19. After replacement, the switching collar 16 is located at the top, so that the meat grinder blade 23 and the discharge screen 19 can be cleaned.

[0040] When the spare meat grinder blade 23 needs to be replaced, move the switching mounting rod 27 forward so that the blade holder rod 28 moves forward. At the same time, insert the blade holder connector 29 into the blade mounting ring 22 inside the upper switching collar 16 for connection. Then, move the blade mounting ring 22 to the outside of the blade holder connector 29. Then move the blade holder rod 28 backward and rotate the blade holder rod 28 and the switching mounting rod 27 to switch the blade holder connector 29 of the other set of blade mounting rings 22. Move the blade holder rod 28 forward again so that the blade holder connector 29 moves to the inside of the switching collar 16. Then, move the other set of blade mounting rings 22 to the mating block 21 inside the switching collar 16 for connection, thereby replacing the spare meat grinder blade 23 in the switching collar 16.

[0041] When the spare discharge screen plate 19 needs to be replaced, rotate the lace ring 17 inside the upper spare switching collar 16 to drive the threaded ring 18 out of the thread inside the switching collar 16, thereby releasing the pressure of the threaded ring 18 on the discharge screen plate 19. Then the discharge screen plate 19 can be taken out from the switching collar 16, and a different model of discharge screen plate 19 can be reinstalled. Then tighten the lace ring 17 and the threaded ring 18 to press and fix the installed discharge screen plate 19, thereby replacing the discharge screen plate 19 in the spare switching collar 16.

[0042] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the present invention as claimed. The scope of protection of this invention is defined by the appended claims and their equivalents.

Claims

1. An electric meat grinder with replaceable blades, comprising a base frame (1), a transmission box (3), a drive motor (4), a feeding pipe (6), and a winding screw (8), wherein the transmission box (3) is fixedly mounted on the upper end of the base frame (1), the drive motor (4) is fixedly mounted on the rear end of the transmission box (3), the feeding pipe (6) is disposed at the front end of the transmission box (3), and the winding screw (8) is movably mounted inside the feeding pipe (6), characterized in that: The front end of the winding screw (8) is welded with a blade connector (9). A switching mechanism (10) is fixedly installed on the upper outer side of the winding pipe (6). Two switching collars (16) are provided in front of the switching mechanism (10). A threaded ring (18) is threaded on the inner side of the switching collar (16). A lace ring (17) is integrally formed on the front end of the threaded ring (18). A discharge screen plate (19) is provided on the inner side of the switching collar (16) behind the threaded ring (18). A rotating seat (20) is fixedly installed on the rear end of the discharge screen plate (19). A docking block (21) is movably installed on the rear end of the rotating seat (20). A blade mounting ring (22) is placed on the rear end of the docking block (21). A meat grinder blade (23) is welded on the outer side of the blade mounting ring (22). A blade holder structure (24) is fixedly installed on the outer side of the winding pipe (6) behind the switching mechanism (10). The switching mechanism (10) includes a rotating rod mounting base (11), a switching rotating rod (12), a return spring (13), a collar connecting block (14), and a switching handle (15). The rotating rod mounting base (11) is fixedly installed on the upper outer side of the winch pipe (6). The switching rotating rod (12) moves through the top of the rotating rod mounting base (11). The return spring (13) is fixedly installed at the rear end of the rotating rod mounting base (11). The collar connecting block (14) is welded to the front end of the switching rotating rod (12). The switching handle (15) is fixedly installed at the front end of the collar connecting block (14). The tool holder structure (24) includes a support rod (25), a mounting collar (26), a switching mounting rod (27), a tool holder rod (28), and a tool holder connector (29). The support rod (25) is fixedly installed on the outside of the winch pipe (6). The mounting collar (26) is welded to the upper end of the support rod (25). The switching mounting rod (27) moves through the mounting collar (26). The tool holder rod (28) is fixedly installed at the front end of the switching mounting rod (27). Multiple tool holder connectors (29) are welded to the front corner of the tool holder rod (28).

2. The electric meat grinder with replaceable blades according to claim 1, characterized in that: The upper end of the base frame (1) is fixedly installed with a support frame (5) in front of the transmission box (3). The support frame (5) is fixedly connected to the lower outer side of the conveying pipe (6). Support pads (2) are fixedly installed at the four corners of the lower end of the base frame (1).

3. The electric meat grinder with replaceable blades according to claim 1, characterized in that: The rear end of the winding screw (8) protrudes behind the winding pipe (6), and the rear end of the winding screw (8) is fixedly connected to the rotating shaft of the transmission box (3).

4. The electric meat grinder with replaceable blades according to claim 3, characterized in that: The reset spring (13) is sleeved on the outside of the switching rod (12). The end of the reset spring (13) away from the rod mounting seat (11) is fixedly connected to the switching rod (12). The two switching collars (16) are fixedly installed on the upper and lower ends of the collar connecting block (14).

5. The electric meat grinder with replaceable blades according to claim 1, characterized in that: The switching collar (16) is fitted onto the front end of the conveying pipe (6), and the blade connector (9) is inserted into the blade mounting ring (22) for connection. The conveying screw (8), the meat grinder blade (23), and the discharge mesh plate (19) are arranged sequentially from back to front.

6. The electric meat grinder with replaceable blades according to claim 1, characterized in that: The lace ring (17) is located in front of the conveying pipe (6), and the threaded ring (18) presses the discharge mesh plate (19) and is fixedly connected to the conveying pipe (6).

7. The electric meat grinder with replaceable blades according to claim 1, characterized in that: The tool holder rod (28) and the tool holder connector (29) are located behind the upper switching collar (16). The tool holder rod (28) is arranged in a cross shape, and the tool holder connector (29) is also fitted with a blade mounting ring (22).

8. The electric meat grinder with replaceable blades according to claim 7, characterized in that: A feeding pipe (7) is fixedly installed on the upper outer side of the conveying pipe (6) behind the support pole (25), and the feeding pipe (7) is connected to the interior of the conveying pipe (6).

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