Spiral expansion device production device and production method thereof

By designing a spiral expander production device including a base plate, assembly tool body and push components, the problems of inconsistent gaps in the assembly of the spiral expander and loose components are solved, and the synchronous assembly of the installation block and the bidirectional threaded central shaft are realized. Stability of the bracket is enhanced.

CN119098920APending Publication Date: 2024-12-10HANGZHOU XIHU BIOLOGY MATERIAL CO LTD
View PDF 0 Cites 0 Cited by

Patent Information

Application Number
CN202410994777.8
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2024-07-24
Publication Date
2024-12-10

AI Technical Summary

Technical Problem

In the existing spiral expander assembly method, the assembly of the central shaft and the slider is not synchronized, resulting in inconsistent gaps on both sides, and the bracket is prone to spin or fall off, and the coordination between the central shaft, guide pin and the slider is loose.

Method used

A spiral expander production device is adopted, including a base plate, assembly tool body and push assembly. Through the design of movable blocks, fixed blocks, springs, rectangular placement grooves and communication grooves, the bidirectional threaded central shaft and the mounting block are assembled simultaneously. The eccentric wheel and handle enable close insertion and push of guide bolts, ensuring synchronization and close coordination between components.

Benefits of technology

The synchronous assembly of the mounting block and the bidirectional threaded central shaft is realized, keeping the gap between the two sides consistent, solving the problem of assembly out of synchronization, and enhancing the stability of the components through the design of the bracket, avoiding loosening and spinning.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN119098920A_ABST
    Figure CN119098920A_ABST
Patent Text Reader

Abstract

The invention discloses a spiral arch expander production device which comprises a bottom plate and further comprises an assembling tool body arranged at the top of the bottom plate, an arch expander body arranged on the assembling tool body and a pushing assembly arranged on the bottom plate and used in cooperation with the assembling tool body. The assembling tool body plays a role in assembling the arch expanding device body; the assembling tool body comprises a movable block arranged on the top of the bottom plate in an abutting mode, a fixed block fixedly arranged on the top of the bottom plate and located on the right side of the movable block, a plurality of springs fixedly arranged between the movable block and the fixed block, and a first rectangular containing groove formed in the right end of the top of the movable block. The first rectangular placement groove is formed in the top of the fixing block, the second rectangular placement groove is formed in the top of the fixing block, the communicating groove is formed in the fixing block and communicates with the second rectangular placement groove, and the communicating groove is located between the first rectangular placement groove and the second rectangular placement groove.
Need to check novelty before this filing date? Find Prior Art

Description

Technical Field

[0001] The present invention relates to the technical field of spiral expanders, and in particular to a spiral expander production device and a production method thereof. Background Art

[0002] At present, with the enhancement of personal awareness of dental beauty, the fields of medical treatment, beauty, and plastic surgery are developing rapidly. The appearance of a normal dental arch is a relatively neat and regular arc, symmetrical on both sides, coordinated and natural, and consistent with the individual's facial shape and tooth shape. Too narrow dental arches are often accompanied by dental and facial problems such as crowded and uneven teeth and protruding mouths, so spiral expanders have appeared. Place the spiral expander in a suitable position, adjust the distance between the bases on both sides by rotating the rotating hole in the spiral column, and transmit the correction force to the teeth and alveolar bone through the base, thereby achieving the function of expanding the width of the upper and lower dental arches.

[0003] Most spiral expanders on the market are assembled by hand, with a central axis, two sliders, and two guide bolts. The central axis and the two guide bolts are pressed together by hand to assemble the central axis and the slider threads with a key. This assembly method generally has disadvantages: the central axis and the two sliders are assembled out of sync, resulting in inconsistent gaps on both sides.

[0004] Most spiral expanders on the market are mainly composed of a central axis, two sliders, two guide bolts and four brackets. The two sliders are matched together through the central axis and the two guide bolts, and two brackets are installed on the outside of each slider for connecting to the base. There are rotating holes and threads on the central axis. The distance between the two sliders can be adjusted by rotating the rotating holes in the central axis stud, thereby expanding the base and achieving the purpose of expanding the dental arch. Such a structure generally has two major disadvantages: 1. When the operator bends and adjusts the bracket of the spiral expander, the bracket is prone to spinning or even falling off; 2. When the operator rotates the central axis to adjust the distance of the slider, the coordination between the central axis, the guide bolt and the slider is prone to loosening. Summary of the invention

[0005] In order to solve one or some technical problems existing in the prior art, the purpose of the present application is to provide a spiral expander production device, which can keep the mounting block one, the mounting block two, the bidirectional threaded central axis, and the guide bolt in a horizontal and coaxial state, so that they are tightly attached and synchronized, and the mounting block one and the mounting block two are synchronously assembled with the bidirectional threaded central axis, which helps to make the gaps on both sides consistent.

[0006] In order to solve the above existing technical problems, one of the purposes of this application is achieved by adopting the following technical solution:

[0007] A spiral expander production device, which includes a base plate, and also includes an assembly tool body arranged on the top of the base plate, an expander body arranged on the assembly tool body, and a pushing component arranged on the base plate and used in conjunction with the assembly tool body, wherein the assembly tool body plays a role of assembling the expander body, and the assembly tool body includes a movable block abutting against the top of the base plate, a fixed block fixedly arranged on the top of the base plate and located on the right side of the movable block, a plurality of sets of springs fixedly arranged between the movable block and the fixed block, a rectangular placement groove 1 opened at the right end of the top of the movable block, a rectangular placement groove 2 opened at the top of the fixed block, and a connecting groove opened on the fixed block and connected with the rectangular placement groove 2, wherein the connecting groove is located between the rectangular placement groove 1 and the rectangular placement groove 2.

[0008] Furthermore, two strip placement grooves are evenly and symmetrically opened on the top of the movable block and the top of the fixed block. The two strip placement grooves on the left are connected to the rectangular placement groove one, and the two strip placement grooves on the right are connected to the rectangular placement groove two.

[0009] Further, the spiral expander body includes a mounting block 1, a mounting block 2, threaded holes opened on the middle part of the mounting block 1 and the middle part of the mounting block 2, a bidirectional threaded center axis that can be screwed between the two threaded holes, two through holes symmetrically opened on the mounting block 1 and centered on the threaded holes, two through holes symmetrically opened on the mounting block 2 and centered on the threaded holes, and a guide bolt inserted between the two through holes opposite to each other in the front and back, the mounting block 1 can be installed in the rectangular placement groove 1, and the mounting block 2 can be installed in the rectangular placement groove 2.

[0010] Furthermore, the distance between the two through holes on the first mounting block is smaller than the distance between the two through holes on the second mounting block.

[0011] Furthermore, two brackets are fixedly provided at the rear end of the mounting block one, and two brackets are fixedly provided at the front end of the mounting block two.

[0012] Furthermore, a plurality of slots are provided on the bidirectional threaded central axis.

[0013] Furthermore, the guide bolt has a cylindrical structure, and the diameter of the middle section of the guide bolt is smaller than the diameters of the left and right sections of the guide bolt.

[0014] Furthermore, the pushing assembly includes an eccentric wheel rotatably arranged on the top of the base plate, the rotation point of the eccentric wheel is not at the center of the circle of the eccentric wheel, the eccentric wheel is in contact with the movable block, and a handle is fixedly provided on the eccentric wheel.

[0015] A method for producing a spiral expander production device comprises the following steps:

[0016] S1, installation preparation, insert the two guide bolts and the bidirectional threaded center shaft into the corresponding threaded holes and through holes on the second mounting block;

[0017] S2, placing the second mounting block, the bracket, the bidirectional threaded center shaft and the guide bolt in the corresponding second rectangular placement groove, the connecting groove and the strip placement groove;

[0018] S3, placing the mounting block 1 and the bracket in the corresponding rectangular placement groove 1 and the strip placement groove;

[0019] S4, twist the handle, the handle drives the eccentric wheel to rotate, the eccentric wheel pushes the movable block to move, the movable block drives the mounting block 1 to move toward the mounting block 2, and finally the two guide bolts and the bidirectional threaded center shaft are inserted into the two through holes and threaded holes on the corresponding mounting block 1;

[0020] S5, use an iron nail, insert the iron nail into several slots, and circulate the bidirectional threaded central shaft, use the rotation of the bidirectional threaded central shaft to connect the mounting block 1 and the mounting block 2, gradually shorten the distance between the mounting block 1 and the mounting block 2, and at the same time still push the movable block to move, so that it moves synchronously. At the same time, the guide bolt will also be squeezed into between the two front and rear opposite through holes, and finally realize the production and assembly of the spiral expander body.

[0021] Compared with the prior art, the present invention has the following beneficial effects:

[0022] (1) When in use, the two guide bolts and the two-way threaded center shaft are inserted into the threaded holes and through holes on the corresponding mounting block 2, the mounting block 2, the bracket, the two-way threaded center shaft and the guide bolts are placed in the corresponding rectangular placement groove 2, the connecting groove and the strip placement groove, and the mounting block 1 and the bracket are placed in the corresponding rectangular placement groove 1 and the strip placement groove. In this way, when the two-way threaded center shaft is screwed, the mounting block 1, the mounting block 2, the two-way threaded center shaft and the guide bolts can be kept horizontally and coaxially, so that they are tightly attached and synchronized, and the mounting block 1 and the mounting block 2 are synchronously assembled with the two-way threaded center shaft, which helps to make the gaps on both sides consistent. Compared with the existing technology, the technical problem of inconsistent gaps on both sides caused by the asynchronous assembly of the two-way threaded center shaft with the mounting block 1 and the mounting block 2 is solved. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 This is a schematic diagram of the overall structure of the present application, showing a schematic diagram of the structure of the expander body, the assembly tool body, and the pushing assembly;

[0024] Figure 2 for Figure 1 A schematic diagram of the enlarged structure at A in the middle;

[0025] Figure 3 This is a schematic diagram of the structure of the bidirectional threaded central shaft connecting the mounting block 1 and the mounting block 2 in this application; Figure 4 It is a schematic diagram of the structure of several slots in this application;

[0026] In the figure: 1. expander body; 2. assembly tool body; 3. push assembly; 4. bottom plate; 5. eccentric wheel; 6. handle; 7. movable block; 8. fixed block; 9. sleeve spring; 10. mounting block one; 11. mounting block two; 12. rectangular placement slot one; 13. strip placement slot; 14. rectangular placement slot two; 15. connecting slot; 16. bidirectional threaded center axis; 17. threaded hole; 18. several slots; 19. guide bolt; 20. through hole; 21. bracket; 22. arc plate; 23. bump. DETAILED DESCRIPTION

[0027] Below, the present application is further described in conjunction with the accompanying drawings and specific implementation methods. It should be noted that, under the premise of no conflict, the various embodiments or technical features described below can be arbitrarily combined to form a new embodiment.

[0028] In the description of the present application, it should be understood that the terms "up", "down", "left", "right", etc., indicating directions or positional relationships are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as a limitation on the present application.

[0029] The terms "first", "second", etc. in this application are used to distinguish similar objects, and are not used to describe a specific order or sequence. It should be understood that the data used in this way can be interchangeable where appropriate, so that the embodiments of the present application can be implemented in an order other than those illustrated or described here, and the objects distinguished by "first", "second", etc. are generally of one type, and the number of objects is not limited. For example, the first object can be one or more. In addition, "and / or" in the specification and claims represents at least one of the connected objects, and the character " / " generally indicates that the objects associated with each other are in an "or" relationship.

[0030] Embodiment 1:

[0031] like Figure 1-Figure 4As shown, the present embodiment provides a spiral expander production device, which includes a base plate 4, and also includes an assembly tool body 2 arranged on the top of the base plate 4, an expander body 1 arranged on the assembly tool body 2, and a pushing component 3 arranged on the base plate 4 and used in conjunction with the assembly tool body. The assembly tool body 2 plays an assembly role for the expander body 1. The assembly tool body 2 includes a movable block 7 abutting against the top of the base plate 4, a fixed block 8 fixedly arranged on the top of the base plate 4 and located on the right side of the movable block 7, a plurality of sets of springs 9 fixedly arranged between the movable block 7 and the fixed block 8, a rectangular placement groove 12 opened at the right end of the top of the movable block 7, a rectangular placement groove 2 14 opened at the top of the fixed block 8, and a connecting groove 15 opened on the fixed block 8 and connected to the rectangular placement groove 2 14, and the connecting groove 15 is located between the rectangular placement groove 12 and the rectangular placement groove 2 14.

[0032] A spiral expander production device includes a base plate 4 and an assembly tool body 2 arranged on the top of the base plate 4, an expander body 1 is arranged on the assembly tool body 2, and a pushing component 3 used in conjunction with the assembly tool body is arranged on the base plate 4. The assembly tool body 2 plays an assembly role for the expander body 1. The assembly tool body 2 includes a movable block 7 abutting against the top of the base plate 4, a fixed block 8 located on the right side of the movable block 7 is fixedly arranged on the top of the base plate 4, and a plurality of sets of springs 9 are fixedly arranged between the movable block 7 and the fixed block 8. The setting of the set of springs 9 plays a role in limiting the movement of the movable block 7. A rectangular placement groove 12 is provided at the right end of the top of the movable block 7, a rectangular placement groove 2 14 is provided at the top of the fixed block 8, and a connecting groove 15 connected to the rectangular placement groove 2 14 is provided on the fixed block 8, so that the connecting groove 15 is located between the rectangular placement groove 12 and the rectangular placement groove 2 14. When in use, the two guide bolts 19 and the two-way threaded center axis 16 are inserted into the threaded holes 17 and the through holes 20 on the corresponding mounting block 2 11, the mounting block 2 11, the bracket 21, the two-way threaded center axis 16 and the guide bolts 19 are placed in the corresponding rectangular placement groove 2 14, the connecting groove 15 and the strip placement groove 13, and the mounting block 10 and the bracket 21 are placed in the corresponding rectangular placement groove 12 and the strip placement groove 13. In this way, when the two-way threaded center axis 16 is screwed, the mounting block 10, the mounting block 2 11, the two-way threaded center axis 16 and the guide bolts 19 can be kept horizontally and coaxially, so that they are tightly attached and synchronized, and the mounting block 10 and the mounting block 2 11 are synchronously assembled with the two-way threaded center axis 16, which helps to make the gaps on both sides consistent. Compared with the prior art, the technical problem of inconsistent gaps on both sides caused by the asynchronous assembly of the two-way threaded center axis 16 with the mounting block 10 and the mounting block 2 11 is solved.

[0033] Furthermore, two strip placement grooves 13 are evenly and symmetrically provided on the top of the movable block 7 and the top of the fixed block 8. The two strip placement grooves 13 on the left are connected to the rectangular placement groove 12, and the two strip placement grooves 13 on the right are connected to the rectangular placement groove 2 14. Two brackets 21 are fixedly provided at the rear end of the mounting block 10, and two brackets 21 are fixedly provided at the front end of the mounting block 2 11. The strip placement grooves 13 are provided to place the brackets 21, so that the contact parts of the brackets 21 and the mounting block 10 or the mounting block 2 11 are reinforced by laser welding to enhance their matching strength, thereby solving the problem of the brackets 21 spinning or falling off during use. The bracket 21 is a cylindrical structure, one end of which is fixed to both sides of the slider, and the other end is connected to the base, which is in contact with the jaw and teeth. The expansion force is transmitted to the jaw through the bracket 21, so as to achieve the purpose of orthodontic clinical expansion.

[0034] Furthermore, the spiral expander body 1 includes a mounting block 10, a mounting block 11, a threaded hole 17 opened in the middle of the mounting block 10 and the middle of the mounting block 11, a bidirectional threaded central axis 16 that can be screwed between the two threaded holes 17, two through holes 20 symmetrically opened on the mounting block 10 and centered on the threaded hole 17, two through holes 20 symmetrically opened on the mounting block 11 and centered on the threaded hole 17, and a guide bolt 19 inserted between the two front and rear opposite through holes 20. The mounting block 10 can be installed in the rectangular placement groove 12, and the mounting block 11 can be installed in the rectangular placement groove 2 14.

[0035] The spiral expander body 1 includes a mounting block 10 and a mounting block 11. A threaded hole 17 is provided in the middle of the mounting block 10 and the middle of the mounting block 11. A bidirectional threaded central axis 16 is screwed between the two threaded holes 17. Two through holes 20 symmetrically provided with the threaded hole 17 as the center are provided on the mounting block 10. Two through holes 20 symmetrically provided with the threaded hole 17 as the center are provided on the mounting block 11. A guide bolt 19 is inserted between the two through holes 20 opposite to each other in the front and rear directions, so that the mounting block 10 can be installed in the rectangular placement groove 12, and the mounting block 11 can be installed in the rectangular placement groove 2 14. The spacing between the two through holes 20 on the mounting block 10 is smaller than the spacing between the two through holes 20 located on the mounting block 11. When in use, the mounting block 10, the mounting block 2 11, the bidirectional threaded central axis 16, and the guide bolt 19 are kept horizontally coaxial, but the spacing between the two through holes 20 of the mounting block 1 and the spacing between the two through holes 20 of the mounting block 2 differ by 0.12 mm, so that after the guide bolts 19 are matched with the mounting blocks, a certain angle is formed between the guide bolts 19, and the two guide bolts 19 are not parallel to each other. Therefore, the fit will become tighter and tighter during the installation of the spiral expander body 1, which solves the technical problem that the fit between the bidirectional threaded central axis 16, the guide bolt 19 and the mounting block is easy to loosen during use.

[0036] Furthermore, a plurality of slots 18 are provided on the bidirectional threaded central shaft 16 . The provision of the plurality of slots 18 facilitates the use of iron nails to screw the bidirectional threaded central shaft 16 .

[0037] Furthermore, an arc plate 22 is provided on the upper side of the bidirectional threaded central axis 16, and the arc plate 22 is welded to the two guide bolts 19. A protrusion 23 is provided at the bottom of the arc plate 22, so that the protrusion 23 can be inserted into the slot 18. In this way, after the bidirectional threaded central axis 16 is screwed into position, the protrusion 23 is connected to the slot 18 to limit the bidirectional threaded central axis 16 and realize the anti-rotation function of the bidirectional threaded central axis 16.

[0038] Furthermore, the guide bolt 19 is a cylindrical structure, and the diameter of the middle section of the guide bolt 19 is smaller than the diameters of the left and right sections of the guide bolt 19. In this way, the plurality of slots 18 of the bidirectional threaded central shaft 16 are provided with operating space.

[0039] Furthermore, the pushing assembly 3 includes an eccentric wheel 5 rotatably arranged on the top of the base plate 4, the rotation point of the eccentric wheel 5 is not at the center of the circle of the eccentric wheel 5, the eccentric wheel 5 is in contact with the movable block 7, and a handle 6 is fixed on the eccentric wheel.

[0040] When this technical solution is not provided, the following problems are likely to occur: it is inconvenient to push the movable block 7, thereby making it inconvenient to achieve the extrusion installation of the guide bolt 19 and the installation block.

[0041] The pushing assembly 3 includes an eccentric wheel 5 rotatably arranged on the top of the bottom plate 4. The rotation point of the eccentric wheel 5 is not at the center of the circle of the eccentric wheel 5. When the eccentric wheel 5 is in contact with the movable block 7, a handle 6 is fixedly arranged on the eccentric wheel. When in use, the handle 6 is turned, the handle 6 drives the eccentric wheel 5 to rotate, the eccentric wheel 5 pushes the movable block 7 to move, and the movable block 7 drives the mounting block 1 10 to move toward the mounting block 2 11, and finally the two guide bolts 19 and the bidirectional threaded central shaft 16 are inserted into the two through holes 20 and the threaded hole 17 on the corresponding mounting block 10.

[0042] Embodiment 2:

[0043] like Figure 1-Figure 4 As shown, a method for producing a spiral expander production device comprises the following steps:

[0044] S1, installation preparation, insert the two guide bolts 19 and the bidirectional threaded center shaft 16 into the corresponding threaded holes 17 and through holes 20 on the second mounting block 11;

[0045] S2, place the second mounting block 11, the bracket 21, the bidirectional threaded central shaft 16 and the guide bolt 19 in the corresponding second rectangular placement groove 14, the connecting groove 15 and the strip placement groove 13;

[0046] S3, placing the mounting block 10 and the bracket 21 in the corresponding rectangular placement groove 12 and the strip placement groove 13;

[0047] S4, turn the handle 6, the handle 6 drives the eccentric wheel 5 to rotate, the eccentric wheel 5 pushes the movable block 7 to move, the movable block 7 drives the mounting block 10 to move toward the mounting block 2 11, and finally the two guide bolts 19 and the bidirectional threaded center shaft 16 are inserted into the two through holes 20 and the threaded hole 17 on the corresponding mounting block 10;

[0048] S5, use an iron nail to insert the iron nail into the plurality of slots 18, and cyclically twist the bidirectional threaded central shaft 16, and utilize the rotation of the bidirectional threaded central shaft 16 to connect the mounting block 10 and the mounting block 2 11, and gradually shorten the distance between the mounting block 10 and the mounting block 2 11, while still pushing the movable block 7 to move, so that they proceed synchronously, and at the same time, the guide bolt 19 will also be squeezed into between the two front and rear opposite through holes 20, and finally realize the production and assembly of the spiral expander body 1.

[0049] The above-mentioned implementation modes are only preferred implementation modes of the present application and cannot be used to limit the scope of protection of the present application. Any non-substantial changes and substitutions made by technicians in this field on the basis of the present application shall fall within the scope of protection required by the present application.

Claims

1. A spiral expander production device, comprising a base plate (4), characterized in that: The invention also comprises an assembly tool body (2) arranged on the top of the base plate (4), an expander body (1) arranged on the assembly tool body (2), and a pushing assembly (3) arranged on the base plate (4) and used in conjunction with the assembly tool body. The assembly tool body (2) plays an assembly role on the expander body (1). The assembly tool body (2) comprises a movable block (7) abutting against the top of the base plate (4), a movable block (7) fixedly arranged on the top of the base plate (4) and located on the movable block (7). ), a plurality of sets of springs (9) fixedly arranged between the movable block (7) and the fixed block (8), a rectangular placement groove (12) opened at the right end of the top of the movable block (7), a rectangular placement groove (14) opened at the top of the fixed block (8), and a connecting groove (15) opened on the fixed block (8) and connected to the rectangular placement groove (14), wherein the connecting groove (15) is located between the rectangular placement groove (12) and the rectangular placement groove (14).

2. A spiral expander production device according to claim 1, characterized in that: Two strip placement grooves (13) are evenly and symmetrically arranged on the top of the movable block (7) and the top of the fixed block (8), the two strip placement grooves (13) on the left are connected to the rectangular placement groove 1 (12), and the two strip placement grooves (13) on the right are connected to the rectangular placement groove 2 (14).

3. The spiral expander production device according to claim 1, characterized in that: The spiral expander body (1) comprises a mounting block 1 (10), a mounting block 2 (11), a threaded hole (17) provided in the middle of the mounting block 1 (10) and the middle of the mounting block 2 (11), a bidirectional threaded center axis (16) capable of being screwed between the two threaded holes (17), two through holes (20) symmetrically provided on the mounting block 1 (10) and centered on the threaded hole (17), two through holes (20) symmetrically provided on the mounting block 2 (11) and centered on the threaded hole (17), and a guide bolt (19) inserted between the two through holes (20) opposite to each other in the front and back directions. The mounting block 1 (10) can be installed in the rectangular placement groove 1 (12), and the mounting block 2 (11) can be installed in the rectangular placement groove 2 (14).

4. A spiral expander production device according to claim 3, characterized in that: The distance between the two through holes (20) on the first mounting block (10) is smaller than the distance between the two through holes (20) on the second mounting block (11).

5. The spiral expander production device according to claim 4, characterized in that: Two brackets (21) are fixedly provided at the rear end of the first mounting block (10), and two brackets (21) are fixedly provided at the front end of the second mounting block (11).

6. The spiral expander production device according to claim 5, characterized in that: The bidirectional threaded central shaft (16) is provided with a plurality of slots (18).

7. The spiral expander production device according to claim 6, characterized in that: The guide bolt (19) is of cylindrical structure, and the diameter of the middle section of the guide bolt (19) is smaller than the diameters of the left and right sections of the guide bolt (19).

8. The spiral expander production device according to claim 1, characterized in that: The pushing assembly (3) comprises an eccentric wheel (5) rotatably arranged on the top of the base plate (4), the rotation point of the eccentric wheel (5) is not at the center of the circle of the eccentric wheel (5), the eccentric wheel (5) is in contact with the movable block (7), and a handle (6) is fixed on the eccentric wheel.

9. A method for producing a spiral expander production device applicable to claim 1, characterized in that: The following steps are involved: S1, installation preparation, inserting two guide bolts (19) and the bidirectional threaded center shaft (16) into the corresponding threaded holes (17) and through holes (20) on the second mounting block (11); S2, placing the second mounting block (11), the bracket (21), the bidirectional threaded central shaft (16) and the guide bolt (19) in the corresponding second rectangular placement groove (14), the connecting groove (15) and the strip placement groove (13); S3, placing the mounting block 1 (10) and the bracket (21) in the corresponding rectangular placement groove 1 (12) and the strip placement groove (13); S4, twist the handle (6), the handle (6) drives the eccentric wheel (5) to rotate, the eccentric wheel (5) pushes the movable block (7) to move, the movable block (7) drives the mounting block 1 (10) to move toward the mounting block 2 (11), and finally the two guide bolts (19) and the bidirectional threaded center shaft (16) are inserted into the two through holes (20) and the threaded hole (17) on the corresponding mounting block 1 (10); S5, use an iron nail to insert the iron nail into a plurality of slots (18), and cyclically twist the bidirectional threaded central shaft (16), and utilize the rotation of the bidirectional threaded central shaft (16) to connect the mounting block 1 (10) and the mounting block 2 (11), gradually shorten the distance between the mounting block 1 (10) and the mounting block 2 (11), while still pushing the movable block (7) to move, so that they proceed synchronously, at the same time, the guide bolt (19) will also be squeezed into between the two front and rear opposite through holes (20), and finally realize the production and assembly of the spiral expander body (1).