A food extruder screw processing equipment

Abstract

The present invention relates to the technical field of screw processing equipment, and specifically proposes a food extruder screw processing equipment, including a machine tool for processing a screw original part. The surface of the machine tool is equipped with two groups of support rods symmetrically arranged on the surface of the screw original part, which are used to support the rotating screw original part to prevent the problem of reduced coaxiality caused by gravity. The number of support rods in each group is set to be multiple, so as to support the screw original part in a large range, prevent the screw original part with a larger aspect ratio from being deformed due to gravity during processing, and ensure the accuracy of the processed screw. The rotating support rods can also reduce the influence of friction, further ensuring the accuracy of processing. At the same time, the support rods are used in conjunction with multiple limit rods to limit the threaded round rod in multiple directions, reduce the influence of centrifugal force generated by the screw original part at high speed, and ensure the accuracy of the processed screw from multiple dimensions.

Description

Technical Field

[0001] The invention relates to the technical field of screw processing equipment, and particularly provides screw processing equipment for a food extruder. Background Art

[0002] The screw is one of the core components of a food extruder. Its functions include conveying, compressing, shearing, mixing and heat transfer. It works in conjunction with the barrel, mold or other components inside the extruder to achieve the physical and chemical transformation from raw materials to extruded food. Its precision has a great impact on material conveying, compression, shearing and mixing. Poor processing precision will also make the screw more prone to increased wear due to stress concentration or abnormal friction during long-term operation, shortening the life of the equipment. Therefore, screw precision is one of the more core factors affecting the performance of the extruder.

[0003] Machine tool processing is the most common processing method for screw rods. The original rod is cut by a tool. Before cutting, the original rod must be clamped and fixed with a three-jaw chuck or a five-jaw chuck. At this time, the original rod will be clamped and suspended in the air, and the tool can perform the cutting operation. However, due to the factor of gravity, the positions of the two ends of the original rod will be higher than the middle position, resulting in a decrease in the coaxiality of the original rod. At this time, it will greatly affect the accuracy of the tool processing, especially for the original rod with a larger length-to-diameter ratio, the impact on the processing accuracy will be even greater.

[0004] Usually during the machining process, a movable center stand is installed on the machine tool to reduce the influence of gravity, and the center stand moves with the movement of the tool. However, the center stand can only support part of the original rod. During the rotation of the original rod, it is still difficult to adjust the coaxiality of the original rod. If the supporting pressure is too large, it will cause greater wear on the surface of the original rod, which will also affect the machining accuracy. If the supporting pressure is too small, it will not play a supporting role, especially for the original rod with a faster machining speed. Gravity and centrifugal force act on the original rod at the same time, which will greatly reduce the machining accuracy. Summary of the Invention

[0005] In order to solve the above problems, the present invention provides a food extruder screw processing equipment, which is used to solve the problems mentioned in the above background technology.

[0006] In order to achieve the above-mentioned objectives, the present invention adopts the following technical solutions: a food extruder screw processing equipment, including a machine tool for processing a screw original, the surface of the machine tool is equipped with two groups of support rods symmetrically arranged on the surface of the screw original, which are used to support the rotating screw original to prevent the coaxiality from being reduced due to gravity, and the number of support rods in each group is set in multiple to increase the support range of the screw original, and the surface of the machine tool is also equipped with a limit assembly for overlapping the screw, and the limit assembly is symmetrically assembled with the support rods to provide circumferential limit protection; the machine tool includes a three-jaw chuck and a base frame for clamping the two ends of the screw original, the three-jaw chuck is assembled on the surface of the base frame through a longitudinally adjustable support assembly, and the surface of the base frame is equipped with a liftable tool holder for radial feed to thread the screw original and can move along the axial direction of the screw original; the surface of one of the three-jaw chucks is equipped with a power assembly for driving the screw original to rotate, and the power assembly is assembled on the surface of the machine tool.

[0007] Preferably, the support rod is rotatably assembled on the inner side of the support seat, and both ends of the support rod are provided with a rotating shaft that movably passes through the support seat, a slot is provided at the end of one of the rotating shafts, and a block that matches the shape of the slot is provided at the end of the other rotating shaft, and the blocks of adjacent support rods are clamped in the corresponding slots, and the support rods on one of the support seats are a rotatable active shaft.

[0008] Preferably, the limit assembly includes a plurality of vertical guide seats mounted on the surface of the base frame, a lifting frame is mounted inside the guide seat, and the end of the lifting frame is equipped with a mounting frame with two limit rods set on the surface. The limit rods are rotatable and rest on the top of the screw original. The limit rods on one of the lifting frames are a rotatable active shaft, and adjacent limit rods are connected by slots and blocks.

[0009] Preferably, the surface of the base frame is equipped with multiple vertical guide seats, the inside of the guide seats is equipped with an L-shaped lifting frame, and the end of the lifting frame is equipped with two limit rods set on the surface. The limit rods are rotatable and rest on the top of the screw original component. One of the limit rods on the lifting frame is a rotatable driving shaft, and adjacent limit rods are installed and connected by slots and blocks.

[0010] Preferably, the end of the lifting frame is equipped with a rotatable cam, and adjacent cams are connected by means of slots and blocks. A slider with a T-shaped cross-section is installed on the surface of the mounting frame, and a slide groove with a shape matching the slider is opened on the side of the cam. The slider is stuck in the inside of the slide groove. The surface of the lifting frame is equipped with an anti-rotation plate for resting on the surface of the cam, and the surface of the lifting frame is equipped with a positioning rod for positioning the cam. A positioning assembly is installed between the guide seat and the lifting frame for fixing the position between the guide seat and the lifting frame. A guide rod is installed on the surface of one of the mounting frames, and the guide rod movably passes through the guide seat. A locking assembly is installed between the guide seat and the lifting frame for fixing the position between the guide seat and the lifting frame.

[0011] Preferably, the locking assembly includes a fixing plate 1 with a circular hole on its surface and a fixing plate 2 with a threaded hole. The fixing plate 1 and the fixing plate 2 are respectively mounted on the surfaces of the guide seat and the lifting frame. A semi-threaded rod with one end protruding outward is mounted between the fixing plate 1 and the fixing plate 2. The threaded position of the semi-threaded rod is installed inside the fixing plate 2, and the protruding end of the semi-threaded rod is against the surface of the fixing plate 1.

[0012] Preferably, the surface of the base frame is provided with a transverse groove for assembling a double-headed screw inside, the surface of the base frame is equipped with two movable seats with protrusions on the surface, the double-headed screw threads pass through the two movable seats, and the T-shaped slide rail is assembled on the lower surface of the movable seat.

[0013] Preferably, the support assembly includes a U-shaped frame with a circular frame on the top, the three-jaw chuck is assembled inside the circular frame through a bearing, the lower end of the U-shaped frame is set to be symmetrically inclined, and the surface of the base frame is equipped with a support column with the top set to be inclined, the support column can slide in the direction perpendicular to the axis of the screw original component, and the support column is fixed in position with the base frame through a positioning assembly.

[0014] Preferably, the power assembly includes a protective cover mounted on the surface of the base frame, and the protective cover is equipped with gear one coaxially mounted with the three-jaw chuck, gear two that is indirectly mounted with gear one and can actively rotate, and gear three for transmitting gear one and gear two. The surface of gear two is equipped with a coaxially rotatable connecting frame, gear three is rotatably mounted on the surface of the connecting frame, and the surface of the protective cover is equipped with a long screw, and the end of the long screw is against the lower surface of the connecting frame.

[0015] Preferably, one side of the protective cover is equipped with a viewing window.

[0016] The above technical solution has the following advantages or beneficial effects: The present invention provides a food extruder screw processing equipment, which places the screw original parts to be processed on the surfaces of two groups of symmetrically arranged support rods by arranging rotatable support rods and limit rods. Since the number of support rods is multiple and detachable, the support rods can support the screw original parts over a large range to prevent the deformation of the screw original parts with a relatively large length-to-diameter ratio due to gravity during the processing, thereby ensuring the accuracy of the processed screw. The rotating support rods can also reduce the influence of friction, further ensuring the accuracy of the processing. At the same time, they are used in conjunction with multiple limit rods to limit the threaded round rods in multiple directions, reducing the influence of the centrifugal force generated by the screw original parts at high speeds, and ensuring the accuracy of the processed screw from multiple dimensions. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The present invention and its features, configurations and advantages will become more apparent from the detailed description of non-limiting embodiments made with reference to the following drawings, in which like reference numerals indicate like parts throughout the drawings, which are not drawn to scale, with emphasis placed on illustrating the subject matter of the present invention.

[0018] Figure 1 The present invention provides a three-dimensional structural diagram of a food extruder screw processing device.

[0019] Figure 2 yes Figure 1 Schematic diagram of the three-dimensional structure from another perspective.

[0020] Figure 3 It is a three-dimensional structural diagram of the support base in the installed state.

[0021] Figure 4 It is a schematic diagram of the three-dimensional structure of adjacent support bases in a disassembled state.

[0022] Figure 5 It is a schematic diagram of the three-dimensional structure when looking up at the position of the mobile seat.

[0023] Figure 6 It is a partial three-dimensional structural diagram of the limit component.

[0024] Figure 7 It is a schematic diagram of the partial split structure of the slider and chute position.

[0025] Figure 8 It is a schematic diagram of part of the three-dimensional structure inside the protective cover.

[0026] Figure 9 It is a three-dimensional structural diagram of the meshing state of gear one, gear two and gear three.

[0027] Figure 10 It is a schematic diagram of the three-dimensional structure of the fixed position three-jaw chuck support assembly installation.

[0028] Figure 11 yes Figure 10 Schematic diagram of the partially split structure.

[0029] Figure 12 It is a schematic diagram of the three-dimensional structure of the three-jaw chuck support assembly in the active position.

[0030] Figure 13 It is a three-dimensional structural diagram of the chassis.

[0031] In the figure: 1. Support rod; 2. Three-jaw chuck; 3. Base frame; 4. Tool holder; 5. Support seat; 6. Rotating shaft; 7. Card slot; 8. Card block; 9. Guide seat; 10. Lifting frame; 11. Limit rod; 12. T-shaped slide rail; 13. Fixed plate 1; 14. Fixed plate 2; 15. Semi-threaded rod; 16. Double-headed screw; 17. Horizontal groove; 18. Moving seat; 19. Circular frame; 20. U-shaped frame; 21. Support column; 22. Protective cover; 23. Gear 1; 24. Gear 2; 25. Gear 3; 26. Connecting frame; 27. Long screw; 28. Viewing window; 29. ​​Mounting frame; 30. Cam; 31. Slider; 32. Slide groove; 33. Anti-rotation plate; 34. Positioning rod; 35. Guide rod; 36. Through groove. DETAILED DESCRIPTION

[0032] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0033] In order to enable those skilled in the art to better understand the present invention, the present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0034] Figure 1 Disclosed is a food extruder screw processing device for clamping a screw component for processing. The device can also be used for processing other mechanical equipment with screws, such as extruders, injection molding machines, and screw conveyors. During the processing of the screw component, it needs to be clamped inside a three-jaw chuck 2 on a machine tool. During the rotation of the screw component, a tool holder 4 is used to perform operations such as cutting on it.

[0035] like Figure 1As shown, the machine tool includes a base frame 3 placed on the ground and two three-jaw chucks 2 installed on the base frame 3, one of the three-jaw chucks 2 is a "fixed end" (can only move longitudinally), and a power component is set on the three-jaw chuck 2 at this position to drive it to rotate, thereby driving the screw original to rotate, and the other three-jaw chuck 2 is a "moving end" (can move longitudinally and laterally), and the laterally movable three-jaw chuck 2 can adapt to screw originals of different lengths. The screw original is clamped and fixed by the two three-jaw chucks 2, and the screw original The support rod 1 placed on the base frame 3 is processed. For screw originals with different diameters, the two ends of the screw original are clamped and fixed by a longitudinally movable three-jaw chuck 2, which is adapted to the height of the support rod 1 to ensure the coaxiality of screw originals with different diameters during processing. The three-jaw chuck 2 is installed on the surface of the base frame 3 through a support assembly. A liftable tool holder 4 is installed on the surface of the base frame 3. The tool holder 4 needs to be horizontally placed on the surface of the screw original to process it with radial feed. The tool holder 4 adopts existing technology.

[0036] like Figure 10 and Figure 11 As shown, the support assembly includes a circular frame 19 and a U-shaped frame 20. The circular frame 19 is located directly above the center of the U-shaped frame 20. A bearing is installed on the surface of the three-jaw chuck 2, and the three-jaw chuck 2 is installed inside the circular frame 19 through the bearing. The lower end of the U-shaped frame 20 is set to a symmetrical inclined shape. For the three-jaw chuck 2 at the fixed end position, a guide rail is installed on the surface of the base frame 3, and two support columns 21 for support are sleeved on the guide rail, and the inclined surface of the top of the support column 21 is just matched with the inclined surface of the lower end of the U-shaped frame 20. When the screw original is fixed inside the three-jaw chuck 2, gravity will drive the circular frame 19 and the U-shaped frame 20 to move downward, squeezing the support column 21, and the support column 21 will move along the guide rail. When the screw original does not move, the position of the support column 21 will also be stationary. At this time, the position of the two support columns 21 is locked by the positioning assembly.

[0037] The positioning assembly includes a threaded hole opened on one of the support columns 21 and a circular hole opened on the other support column 21. A semi-threaded rod 15 is installed between the two support columns 21. Half of the semi-threaded rod 15 is provided with a thread, and the end of the other half is convex. When the positions of the two support columns 21 remain unchanged, the semi-threaded rod 15 is rotated and pushed so that the threaded position is installed inside the threaded hole, and the convex part of the unthreaded end is against the surface of the corresponding support column 21. At this time, the positions of the two support columns 21 can be relatively locked. In order to prevent the two support columns 21 from moving left or right at the same time, two bolts are symmetrically installed on the surface of the base frame 3, and the ends of the bolts are used to abut against the surface of the support columns 21, thereby realizing the positioning of the support columns 21 to prevent the original screw from moving during rotation and ensure the accuracy of the processing process.

[0038] like Figure 1 、 Figure 12 and Figure 13 As shown, for the three-jaw chuck 2 at the moving end position, the two support columns 21 are located on both sides of the base frame 3. In order to ensure the stability of the support columns 21, bolts can be threadedly assembled on the surface of the support columns 21, and extrusion plates are set at the ends of the bolts. By rotating the bolts, the extrusion plates are moved to press against both sides of the base frame 3. It should be noted that since the three-jaw chuck 2 needs to be moved at this time, a transverse through groove 36 is opened on the base frame 3 to facilitate the movement of the semi-threaded rod 15.

[0039] like Figure 3 and Figure 4 As shown, in order to overcome the influence of gravity on the screw component during the rotation process, two groups of support rods 1 are installed above the base frame 3. The number of support rods 1 in each group is determined according to the length of the screw component itself. The support rods 1 are set above the base frame 3 through the support seat 5. In the processing state, the screw component is placed on the upper surface of the support rods 1, and the two groups of support rods 1 are symmetrically assembled on both sides of the screw component.

[0040] like Figure 5 and Figure 13 As shown, in order to adapt to screw originals of different diameters and lengths, two moving seats 18 are symmetrically assembled on the surface of the base frame 3. The lower surface of the moving seat 18 is provided with a protrusion, and a transverse groove 17 is opened at the position corresponding to the protrusion of the base frame 3. A rotatable double-headed screw 16 is installed inside the transverse groove 17. The threads at both ends of the double-headed screw 16 pass through the positions of the two protrusions respectively. A rocker is installed at the end of the double-headed screw 16. The distance between the two moving seats 18 is controlled by controlling the rotation of the rocker. However, it should be noted that the symmetrical center position of the two moving seats 18 has always remained unchanged. That is, when the screw rod component is placed on the surface of the two sets of support rods 1, its axis will only change in the vertical direction. A T-shaped slide rail 12 is assembled on the surface of the movable seat 18, and the bottom shape of the support seat 5 is adapted to the shape of the T-shaped slide rail 12. By installing and disassembling multiple support seats 5 to adapt to the support of screw rod components of different lengths, in order to ensure the stability of the screw rod component during rotation, bolts (not shown in the figure) can also be installed on the surface of the support seat 5. By rotating the bolts, the friction between the support seat 5 and the movable seat 18 is increased to ensure the stability of the installation.

[0041] like Figure 4As shown, since the screw rod original will rub against the support rod 1 during the rotation process, in order to reduce the wear of the screw rod original due to friction and ensure the accuracy of thread processing, the support rod 1 is rotatably installed on the surface of the support seat 5, and a rotating shaft 6 is set at both ends of the support rod 1. The rotating shaft 6 movably passes through the surface of the support seat 5. A slot 7 is provided at the end of one of the rotating shafts 6, and a block 8 that is adapted to the shape of the slot 7 is provided at the end of the other rotating shaft 6. When the support rod 1 is installed in a suitable position, the block 8 on the adjacent support rod 1 will be clamped in the corresponding slot 7. A motor (not shown in the figure) is set on any support seat 5 to drive the corresponding support rod 1 to rotate. With the support rod 1 as the active shaft, all the support rods 1 can be rotated by the engagement of the clamping block 8 and the clamping slot 7. It should be noted that during the processing, the support rod 1 at the corresponding position needs to be rotated in the opposite direction to the original screw component to reduce the effect of friction. At this time, the thread processing accuracy of the original screw component can be further guaranteed. At the same time, during the rotation process, the waste chips falling on the surface of the support rod 1 can be taken away to avoid affecting the processing of the thread.

[0042] However, during the processing of the screw original, different processing states require different rotational speeds (e.g., a higher rotational speed is required during fine processing, and a lower rotational speed is required during rough processing). When the rotational speed is slow, the screw original with a large aspect ratio is more affected by gravity, but when the rotational speed is fast, the centrifugal force will also have a greater impact on the processing accuracy of the screw original. Therefore, a limit assembly is installed on the surface of the base frame 3 for use in conjunction with the support rod 1.

[0043] like Figure 2 、 Figure 5 、 Figure 6 and Figure 7 As shown, when processing the screw original, the tool holder 4 is first slidably installed on one of the T-shaped slide rails 12. The limit assembly includes a plurality of vertical guide seats 9 installed on the T-shaped slide rails 12 opposite to the tool holder 4. A lifting frame 10 is assembled inside the guide seat 9, and a mounting frame 29 is assembled at the end of the lifting frame 10. Two symmetrical limit rods 11 are rotatably assembled on the surface of the mounting frame 29. It should be noted that the position of the symmetry line of the two limit rods 11 is located directly above the axis of the screw original. Similarly, the adjacent limit rods 11 are connected and rotated synchronously through the slot 7 and the block 8. A motor is assembled on the surface of one of the lifting frames 10 to drive the corresponding limit rod 11 (using the limit rod 11 as the active shaft) to rotate, thereby reducing the problem of friction affecting the processing accuracy. In this state, the two support rods 1 and the two limit rods 11 act on four symmetrical upper and lower positions of the screw original at the same time, which can provide support forces in multiple directions when the screw original rotates, thereby reducing the influence of centrifugal force.

[0044] A rotatable cam 30 is installed at the end of the lifting frame 10. The cam 30 is rotatably installed through a circular shaft. The same slot 7 and block 8 are provided at the end of the circular shaft to ensure that adjacent cams 30 can rotate simultaneously. It should be noted that in the initial state, one of the flat side surfaces of the cam 30 is in a horizontal state, and the contact surface between the mounting frame 29 and the cam 30 is also a flat surface. An anti-rotation plate 33 is installed on the surface of the lifting frame 10 to prevent it from rotating downward. In order to prevent the mounting frame 29 from falling off the surface of the cam 30, a T-shaped slide groove 32 is provided on the side of the cam 30, and a slider 31 of corresponding shape is installed on the lower surface of the mounting frame 29. The slider 31 is stuck in the inside of the slide groove 32. Rotating one of the cams 30 can lift the mounting frame 29, making it convenient to disassemble the original screw.

[0045] In order to prevent the mounting frame 29 from being affected when the screw original rotates, a guide rod 35 can be assembled on the surface of part of the mounting frame 29, and the guide rod 35 can be movably passed through the corresponding guide seat 9. In order to prevent the cam 30 from being affected when the screw original rotates, a positioning rod 34 can be detachably installed on one or more of the lifting frames 10. When there is no need to remove the screw original, the positioning rod 34 is inserted through the corresponding lifting frame 10 and the circular shaft connected to the corresponding cam 30. At this time, the positioning rod 34 and the axis of the circular shaft are perpendicular to each other.

[0046] In order to prevent the limiting rod 11 from exerting excessive limiting pressure on the screw original, the limiting rod 11 relies on its own gravity to overlap the surface of the screw original. While limiting, it also prevents wear caused by excessive pressure and reduces the impact on the processing accuracy of the screw original. To ensure the limiting effect, the position between the lifting frame 10 and the guide seat 9 is fixed by a locking assembly. The locking assembly includes a fixing plate 13 fixed to the guide seat 9. The fixing plate 13 is provided with a circular hole. A fixing plate 2 14 is installed on the surface of one or more lifting frames 10. The fixing plate 2 14 is provided with a threaded hole. A semi-threaded rod 15 with one end protruding outward is also assembled between the fixing plate 13 and the fixing plate 2 14. The thread position of the semi-threaded rod 15 is installed inside the fixing plate 2 14, and the protruding end of the semi-threaded rod 15 is against the lower surface of the fixing plate 1 13. After the limiting rod 11 is overlapped with the surface of the screw original, the semi-threaded rod 15 is moved so that the end containing the thread is against the surface of the fixing plate 2 14, and then the semi-threaded rod 15 is rotated to clamp the thread position inside the fixing plate 2 14 until the protruding end of the semi-threaded rod 15 contacts the lower surface of the fixing plate 1 13 (see Figure 6 ).

[0047] like Figure 3 、 Figure 8 and Figure 9As shown, the power assembly includes a protective cover 22 assembled on the surface of the chassis 3, and a gear 1 23, a gear 24 and a gear 3 25 are assembled inside the protective cover 22. The gear 1 23 is coaxially fixedly connected to the corresponding three-claw chuck 2, and the gear 1 23 is movably assembled on the side wall of the protective cover 22 through a circular shaft. The gear 2 24 is driven by a motor (not shown in the figure) as a driving gear. The gear 3 25 is used to transmit the gear 1 23 and the gear 2 24. A connecting frame 26 that can rotate coaxially relative to the gear 2 24 is assembled on the surface of the gear 2 24, that is, the rotation of the gear 2 24 and the connecting frame 26 are not affected by each other. The gear 3 25 is rotatably assembled on the surface of the connecting frame 26, and the rotation of the gear 3 25 and the connecting frame 26 will not affect each other. The rotation of the gear 2 24 will be through Gear three 25 drives gear one 23 to rotate. In order to adapt to screw rods of different diameters, a long screw 27 is threadedly assembled on the surface of the protective cover 22. The end of the long screw 27 rests on the lower surface of the convex plate fixedly connected to the connecting frame 26. If the height of gear one 23 needs to be adjusted, the long screw 27 is rotated away from the connecting frame 26 to change the rotation angle of the connecting frame 26, so that gear three 25 is separated from gear one 23 to adjust the height of gear one 23. When the height of gear one 23 is determined, the long screw 27 is rotated to squeeze the connecting frame 26 so that gear one 23 and gear three 25 engage to realize transmission. In order to facilitate the engagement of gear one 23, gear two 24 and gear three 25 during height adjustment, a visual window 28 is assembled on the surface of the protective cover 22 for easy operation.

[0048] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like to indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0049] In the description of the present invention, it should also be noted that, unless otherwise expressly specified or limited, the terms "disposed," "connected," "installed," and "connected" should be understood in a broad sense. For example, they may refer to fixed connections, detachable connections, or integral connections; they may refer to mechanical connections or electrical connections; they may refer to direct connections or indirect connections through an intermediate medium; and they may refer to internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on specific circumstances.

[0050] The above describes the preferred embodiments of the present invention. It should be understood that the present invention is not limited to the above-mentioned specific embodiments, and the devices and structures that are not described in detail should be understood to be implemented in a common manner in the art; any technician familiar with the art can make many possible changes and modifications without departing from the technical solution of the present invention, or modify them into equivalent embodiments with equivalent changes, which does not affect the essential content of the present invention. Therefore, any simple modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the present invention that do not depart from the content of the technical solution of the present invention are still within the scope of protection of the technical solution of the present invention.

Claims

1. A food extruder screw processing equipment, characterized by: A machine tool for processing a screw rod element is provided on the surface of the machine tool. Two groups of support rods are symmetrically arranged on the surface of the screw rod element for supporting the rotating screw rod element. Each group of support rods has a plurality of support rods. The surface of the machine tool is also provided with a limit assembly for overlapping the screw rod to reduce the influence of centrifugal force. The limit assembly is symmetrically assembled with the support rods. The machine tool includes a three-jaw chuck for clamping both ends of the screw rod and a base frame, the three-jaw chuck is mounted on the surface of the base frame through a longitudinally adjustable support assembly, and the surface of the base frame is equipped with a tool holder that can be raised and lowered and moved along the axis of the screw rod; The surface of one of the three-jaw chucks is equipped with a power assembly for driving the screw element to rotate, and the power assembly is mounted on the surface of the machine tool; The support rod is rotatably assembled on the inner side of the support seat, and both ends of the support rod are provided with a rotating shaft that movably passes through the support seat, one end of the rotating shaft is provided with a slot, and the other end of the rotating shaft is provided with a block that matches the shape of the slot, and the blocks of the adjacent support rods are clamped in the corresponding slots, and one of the support rods on the support seat is a rotatable driving shaft; The limiting assembly includes a plurality of guide seats mounted on the surface of the base frame, a lifting frame mounted inside the guide seats, and a mounting frame with two limiting rods mounted on the surface at the end of the lifting frame. The limiting rods are rotatable and rest on the top of the screw rod. One of the limiting rods on the lifting frame is a rotatable driving shaft, and adjacent limiting rods are connected by means of a slot and a block. The end of the lifting frame is equipped with a rotatable cam, and adjacent cams are connected by means of a slot and a block. A slider with a T-shaped cross-section is installed on the surface of the mounting frame. A slot with a shape matching that of the slider is provided on the side of the cam, and the slider is stuck in the inside of the slot. An anti-rotation plate for resting against the surface of the cam is installed on the surface of the lifting frame. A positioning rod for positioning the cam is installed on the surface of one of the mounting frames. A guide rod is installed on the surface of the guide frame, and the guide rod movably passes through the guide seat. A locking assembly is installed between the guide seat and the lifting frame to fix the position between the guide seat and the lifting frame.

2. The food extruder screw processing equipment according to claim 1, characterized in that: The surface of the chassis is equipped with a T-shaped slide rail for installing a support seat and a guide seat, and the bottom shapes of the support seat and the guide seat are adapted to the shape of the T-shaped slide rail.

3. The food extruder screw processing equipment according to claim 1, characterized in that: The locking assembly includes a fixing plate 1 with a circular hole on its surface and a fixing plate 2 with a threaded hole. The fixing plate 1 and the fixing plate 2 are respectively assembled on the surfaces of the guide seat and the lifting frame. A semi-threaded rod with one end protruding outward is assembled between the fixing plate 1 and the fixing plate 2. The threaded position of the semi-threaded rod is installed inside the fixing plate 2, and the protruding end of the semi-threaded rod is against the lower surface of the fixing plate 1.

4. The food extruder screw processing equipment according to claim 2, characterized in that: The surface of the base frame is provided with a transverse groove for assembling a double-headed screw inside, and the surface of the base frame is symmetrically equipped with two moving seats with protrusions on the surface. The double-headed screw thread passes through the two moving seats, and the T-shaped slide rail is assembled on the surface of the moving seat.

5. The food extruder screw processing equipment according to claim 1, characterized in that: The support assembly includes a U-shaped frame with a circular frame on the top, the three-jaw chuck is assembled inside the circular frame through a bearing, the lower end of the U-shaped frame is set to a symmetrical inclined shape, and the surface of the base frame is equipped with a support column with an inclined top, the support column can slide in the direction perpendicular to the axis of the screw original component, and the support column is fixed in position with the base frame through a positioning assembly.

6. The food extruder screw processing equipment according to claim 1, characterized in that: The power assembly includes a protective cover mounted on the surface of the base frame, and the protective cover is internally equipped with gear 1 coaxially mounted with the three-jaw chuck, gear 2 that is indirectly mounted with gear 1 and can actively rotate, and gear 3 for transmitting gear 1 and gear 2. The surface of gear 2 is equipped with a coaxially rotatable connecting frame, and gear 3 is rotatably mounted on the surface of the connecting frame. The surface of the protective cover is equipped with a long screw, and the end of the long screw is against the lower surface of the connecting frame.

7. The food extruder screw processing equipment according to claim 6, characterized in that: One side of the protective cover is equipped with a viewing window.

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