Cloth transfer device for garment production

Abstract

The utility model discloses a cloth transfer device for garment production, which relates to the field of cloth transfer devices and is technically characterized by comprising a bottom plate, U-shaped plates are fixedly connected to the left side and the right side of the upper end face of the bottom plate, guide grooves are formed in the two opposite inner surfaces of each U-shaped plate, and movable components are arranged in the guide grooves formed in the same U-shaped plate. The front end face and the rear end face of the movable plate are fixedly connected with the guide blocks, the movable plate is connected with the bearing plate through the hinge piece, a bearing groove is formed in the side edge of the lower end face of the bearing plate, the guide plate is arranged in the bearing groove, and the side edge of the lower end face of the guide plate is hinged to a groove opening of the bearing groove in the lower end face of the bearing plate; the front side and the rear side of the upper end face of the bottom plate are fixedly connected with an adjusting column and a fixing column respectively, and the left side and the right side of the upper end face of the bearing plate are fixedly connected with baffles. According to the utility model, the carrying adaptability to different fabrics is further improved.

Description

Technical Field

[0001] This utility model relates to the field of fabric transfer devices, and in particular to a fabric transfer device for garment production. Background Technology

[0002] In the garment manufacturing industry, fabric transfer is a crucial link throughout the entire production process, and its efficiency and quality directly affect the overall efficiency and product quality of garment production. From the raw material warehouse to the cutting workshop, then to the sewing workshop, and finally to the finishing and packaging workshop, fabric needs to be frequently transferred between different workstations. With increasingly fierce competition in the garment market, consumers are placing higher demands on the style, quality, and delivery time of garments, forcing garment manufacturers to continuously improve production efficiency, reduce costs, and ensure stable product quality. Therefore, efficient, precise, and reliable fabric transfer devices have become essential equipment to meet the needs of modern garment production and are of paramount importance for enhancing a company's core competitiveness.

[0003] Currently, although some fabric transfer devices exist on the market, these devices have revealed many problems in practical applications. On the one hand, some transfer devices have relatively simple structural designs and single functions, only capable of basic fabric handling, lacking adaptability to fabrics of different specifications and materials. For example, for soft and easily deformed silk fabrics and thick and stiff denim fabrics, the stacking of fabrics during transfer can easily lead to wrinkles, deformation, or even damage, affecting the quality of subsequent cutting and sewing processes. Utility Model Content

[0004] In order to solve the above-mentioned technical problems, the purpose of this utility model is to provide a fabric transfer device for garment production, which further increases the adaptability to handling different fabrics.

[0005] To achieve the above objectives, the present invention provides the following technical solution:

[0006] A fabric transfer device for garment production includes a base plate. U-shaped plates are fixedly connected to both sides of the upper surface of the base plate. Guide grooves are formed on the two inner surfaces of the U-shaped plates. A movable component is disposed within the guide grooves on the same U-shaped plate. The movable component includes guide blocks, a movable plate, a receiving plate, and hinges. Guide blocks are fixedly connected to the front and rear end faces of the movable plate. The movable plate is connected to the receiving plate via hinges. A receiving groove is formed on the side of the lower end face of the receiving plate, and a guide plate is disposed within the receiving groove. The lower end face of the guide plate is hinged to the receiving groove of the lower end face of the receiving plate. An adjusting column and a fixing column are fixedly connected to the front and rear sides of the upper end face of the base plate, respectively. A threaded groove is opened on the rear end face of the adjusting column, and a threaded rod is provided in the threaded groove. A threaded block is threadedly connected to the lower circumferential side of the threaded rod. The side surface of the threaded block is fixedly connected to the front end face of the guide plate. A power component is provided on the upper circumferential side of the threaded block. Baffles are fixedly connected to the left and right sides of the upper end face of the receiving plate, and a positioning column is fixedly connected to the middle of the upper end face of the receiving plate.

[0007] Preferably, a plurality of self-locking casters are fixedly connected to the lower end face of the base plate, and a handle is fixedly connected to the front end face of the U-shaped plate.

[0008] Preferably, the hinge includes a hinge hole, a hinge auxiliary hole, and a hinge shaft. The lower end face of the hinge hole is fixedly connected to the upper end face of the movable plate, and the side end face of the hinge auxiliary hole is fixedly connected to the side surface of the receiving plate. The hinge hole, the hinge auxiliary hole, and the hinge shaft are clearance-fitted, and the hinge hole and the side surface of the hinge auxiliary hole are tightly fitted.

[0009] Preferably, the front end face of the adjusting column is provided with a threaded hole on the side, the power assembly includes a rotating rod, the rotating rod extends through the threaded hole into the threaded groove, the front end face of the rotating rod is fixedly connected to a connecting rod, the front end face of the connecting rod is fixedly connected to a rotating handle, the rear end face of the rotating rod is fixedly connected to a face gear, and the upper peripheral side of the threaded rod is fixedly connected to a gear, the gear meshing with the face gear.

[0010] Preferably, the shape and size of the guide block are adapted to the guide groove, and the guide groove and the guide block are slidably engaged. The shape and size of the receiving plate are adapted to the inner window of the U-shaped plate, and the receiving plate is slidably engaged with the inner window of the U-shaped plate.

[0011] Preferably, the shape and size of the threaded block are adapted to the threaded groove, and the threaded groove and the threaded block slide in fit.

[0012] This utility model has the following beneficial effects:

[0013] Facilitates fabric placement and positioning: Baffles are fixedly connected to the left and right sides of the upper end face of the receiving plate, and a positioning post is fixedly connected to the center of the upper end face. The baffles prevent the fabric from slipping off the sides of the receiving plate during transportation, and the positioning post positions the fabric, ensuring that the fabric is placed neatly on the receiving plate, facilitating subsequent processing operations and improving the stability and accuracy of fabric placement.

[0014] For easy acceptance of different fabrics: A receiving groove is provided on the lower side of the receiving plate, and a guide plate is installed inside the receiving groove. The lower side of the guide plate is hinged to the receiving groove opening on the lower side of the receiving plate. A threaded groove is provided on the rear end face of the adjusting column, and a threaded rod is installed inside the threaded groove. A threaded block is threadedly connected to the lower circumferential side of the threaded rod, and the side surface of the threaded block is fixedly connected to the front end face of the guide plate. A threaded hole is provided on the upper side of the front end face of the adjusting column. The rotating rod of the power component extends through the threaded hole into the threaded groove. The face gear on the rear end face of the rotating rod meshes with the gear on the upper circumferential side of the threaded rod. By rotating the rotating handle of the power component, the rotating rod is driven to rotate, which in turn causes the face gear to drive the gear to rotate, and the threaded rod rotates accordingly. Since the threaded block is threadedly connected to the threaded rod and restricted by the guide groove, it can only move up and down, thus realizing the lifting and lowering of the threaded block. At the same time, the threaded block is fixedly connected to the guide plate. Through the hinged structure, the guide plate can rotate relative to the receiving plate. When receiving fabric, the angle of the guide plate can be adjusted according to actual needs, thereby adjusting the position of the receiving plate. In actual use, the angle of the receiving plate can be flexibly adjusted according to the requirements of different production stages for fabric production. When transferring thick and stiff denim fabrics, the receiving plate can be adjusted to a horizontal state to facilitate neat stacking of the fabric. When transferring soft and easily deformable silk fabrics, the receiving plate can be adjusted to a vertical state before placing the fabric on the positioning column to reduce wrinkles, deformation, or even damage to the fabric due to stacking, thus improving the applicability of the device.

[0015] Facilitates device movement and fixation

[0016] Several self-locking casters are fixedly connected to the lower end face of the base plate, and a handle is fixedly connected to the front end face of the U-shaped plate. The self-locking casters allow the device to move freely within the production workshop, facilitating the transfer of fabric to different workstations. Once the device reaches the designated position, the casters can be locked in place by the self-locking function to prevent movement during operation, ensuring the stability and safety of the device and improving the efficiency and convenience of transfer. Attached Figure Description

[0017] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 This is an overall view of the first embodiment of the present utility model.

[0019] Figure 2 This is an overall view of the second embodiment of the present utility model.

[0020] Figure 3 This is a partial cross-sectional view of the second embodiment of the present invention.

[0021] Figure 4 This is a partial cross-sectional view of the second embodiment of the present invention.

[0022] In the diagram: 1. Base plate; 2. U-shaped plate; 3. Guide groove; 401. Guide block; 402. Movable plate; 403. Support plate; 4041. Hinge hole; 4042. Hinge auxiliary hole; 4043. Hinge shaft; 5. Support groove; 6. Guide plate; 7. Adjusting column; 8. Fixed column; 9. Threaded groove; 10. Threaded rod; 11. Threaded block; 12. Baffle; 13. Positioning column; 1401. Rotating rod; 1402. Connecting rod; 1403. Rotating handle; 1404. Face gear; 1405. Gear; 15. Self-locking caster wheel; 16. Handle; 17. Threaded hole. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.

[0024] First embodiment

[0025] like Figure 1 and Figure 3As shown, the fabric transfer device for garment production in this embodiment includes a base plate 1. U-shaped plates 2 are fixedly connected to both the left and right sides of the upper surface of the base plate 1. Guide grooves 3 are formed on the two inner surfaces of the U-shaped plates 2. Movable components are jointly arranged within the guide grooves 3 on the same U-shaped plate 2. The movable components include guide blocks 401, a movable plate 402, a receiving plate 403, and hinges. Guide blocks 401 are fixedly connected to the front and rear end faces of the movable plate 402. The movable plate 402 is connected to the receiving plate 403 via hinges. A receiving groove 5 is formed on the side of the lower end face of the receiving plate 403. A receiving groove 5 is provided within the receiving groove 5. The guide plate 6 is hinged to the groove of the receiving groove 5 on the lower end face of the receiving plate 403. The front and rear sides of the upper end face of the base plate 1 are respectively fixedly connected to the adjusting column 7 and the fixing column 8. The rear end face of the adjusting column 7 is provided with a threaded groove 9. The threaded rod 10 is provided in the threaded groove 9. The lower circumferential side of the threaded rod 10 is threadedly connected to the threaded block 11. The side surface of the threaded block 11 is fixedly connected to the front end face of the guide plate 6. The upper circumferential side of the threaded block 11 is provided with a power component. The left and right sides of the upper end face of the receiving plate 403 are fixedly connected to the baffle 12. The middle of the upper end face of the receiving plate 403 is fixedly connected to the positioning column 13.

[0026] Several self-locking casters 15 are fixedly connected to the lower end face of the base plate 1, and a handle 16 is fixedly connected to the front end face of the U-shaped plate 2.

[0027] like Figure 1 and Figure 3 As shown, during use, the receiving plate 403 serves as the core component for fabric placement, and the baffles 12 fixedly connected to its upper left and right sides play a crucial stabilizing role. During fabric transfer, the device may shake due to movement, vibration, or other external forces. At this time, the baffles 12 act as a "protective barrier," effectively preventing the fabric from slipping off the sides of the receiving plate 403 and ensuring that the fabric remains within the bearing capacity of the receiving plate 403, greatly improving the stability of fabric placement.

[0028] The positioning post 13, fixedly connected to the center of the upper surface of the receiving plate 403, is a key element for precise positioning of the fabric. When placing the fabric, the operator can align a corner or a specific position of the fabric with the positioning post 13, ensuring the fabric is neatly arranged on the receiving plate 403. This positioning method not only facilitates subsequent fabric processing operations, such as cutting and sewing, but also ensures the consistency of the placement position for each batch of fabric, improving the accuracy of fabric placement and reducing processing errors and wasted production time caused by messy fabric placement.

[0029] The self-locking casters 15 fixedly connected to the lower end face of the base plate 1 are key components for the flexible movement of the device. In garment production workshops, fabric transfer usually needs to be carried out between different workstations. The self-locking casters 15 enable the device to move freely on the workshop floor. Operators can quickly and conveniently move the device to the designated location by simply pushing the handle 16, which greatly saves manpower and time and improves transfer efficiency.

[0030] Once the device reaches the designated position, the self-locking function of the self-locking caster wheel 15 comes into play. By operating the self-locking device, the caster wheel can be fixed in place, ensuring the device remains stable during operation and preventing movement due to external forces. This stability is crucial for ensuring the quality of fabric transfer and processing. For example, during delicate operations such as fabric cutting and sewing, movement of the device may lead to processing errors and affect product quality. Therefore, the design of the self-locking caster wheel 15 ensures both the ease of movement of the device and its stability and safety during operation.

[0031] Second embodiment

[0032] like Figures 1 to 4 As shown, the hinge includes a hinge hole 4041, a hinge auxiliary hole 4042, and a hinge shaft 4043. The lower end face of the hinge hole 4041 is fixedly connected to the upper end face of the movable plate 402, and the side end face of the hinge auxiliary hole 4042 is fixedly connected to the side surface of the receiving plate 403. The hinge hole 4041, the hinge auxiliary hole 4042, and the hinge shaft 4043 are clearance-fitted, and the side surfaces of the hinge hole 4041 and the hinge auxiliary hole 4042 are tightly fitted.

[0033] like Figures 1 to 4As shown, the hinge plays a crucial role in the fabric transfer device used in garment production. Through a specific structural design, it enables flexible rotational connection between the receiving plate 403 and the movable plate 402. The hinge consists of a hinge hole 4041, a hinge auxiliary hole 4042, and a hinge shaft 4043. The lower end face of the hinge hole 4041 is fixedly connected to the upper end face of the movable plate 402, and the side end face of the hinge auxiliary hole 4042 is fixedly connected to the side surface of the receiving plate 403. This connection method allows the receiving plate 403 and the movable plate 402 to rotate relative to each other, rather than being rigidly fixed. To ensure stability and reliability during rotation, the hinge hole 4041, the hinge auxiliary hole 4042, and the hinge shaft 4043 are fitted with a clearance fit, and the side surfaces of the hinge hole 4041 and the hinge auxiliary hole 4042 are tightly fitted. This design ensures both the flexibility of rotation between the receiving plate 403 and the movable plate 402 and the stability and reliability of the rotation process. The clearance fit allows the hinge shaft 4043 to rotate smoothly within the hinge hole 4041 and the hinge auxiliary hole 4042, reducing friction during rotation and lowering energy loss. This allows the operator to easily adjust the angle of the receiving plate 403. Simultaneously, the tight fit between the side surfaces of the hinge hole 4041 and the hinge auxiliary hole 4042 provides necessary support and constraint during rotation. When the receiving plate 403 rotates, the tightly fitted surfaces can withstand a certain force, preventing the receiving plate 403 from wobbling or shifting during rotation, thus ensuring the accuracy and stability of the angle adjustment of the receiving plate 403.

[0034] A threaded hole 17 is provided on the upper side of the front end face of the adjusting column 7. The power assembly includes a rotating rod 1401, which extends through the threaded hole 17 into the threaded groove 9. A connecting rod 1402 is fixedly connected to the front end face of the rotating rod 1401. A rotating handle 1403 is fixedly connected to the front end face of the connecting rod 1402. A face gear 1404 is fixedly connected to the rear end face of the rotating rod 1401. A gear 1405 is fixedly connected to the upper circumferential side of the threaded rod 10. The gear 1405 meshes with the face gear 1404.

[0035] like Figures 1 to 4As shown, in the fabric transfer device used in garment production, the power component design provides a convenient and precise power source for adjusting the angle of the receiving plate. The operator starts the entire power transmission process by manually rotating the handle 1403. The handle 1403 is fixedly connected to the front end of the connecting rod 1402. When the operator rotates the handle 1403, it drives the connecting rod 1402 to rotate synchronously. The connecting rod 1402 is then fixedly connected to the front end of the rotating rod 1401, causing the rotating rod 1401 to rotate together with the connecting rod 1402. This manual operation method is simple and direct, allowing the operator to flexibly control the rotation force and speed according to actual needs, facilitating precise adjustment of the receiving plate angle. The face gear 1404 fixedly connected to the rear end of the rotating rod 1401 meshes with the gear 1405 fixedly connected to the upper circumferential side of the threaded rod 10; this is a crucial link in power transmission. The meshing design of the face gear 1404 and the gear 1405 enables the direction and transmission of power. When the rotating rod 1401 rotates, the face gear 1404 rotates accordingly. Since gear 1404 meshes with gear 1405, gear 1405 will begin to rotate under the drive of the face gear 1404. Since gear 1405 is fixed to the threaded rod 10, the threaded rod 10 will also rotate along with gear 1405. This gear meshing transmission method features smooth and accurate transmission, ensuring minimal power loss during transmission and precise control of the rotation of the threaded rod 10. The threaded rod 10 is located in the threaded groove 9 opened at the rear end face of the adjusting column 7, and a threaded block 11 is threadedly connected to the lower circumferential side of the threaded rod 10. When the threaded rod 10 begins to rotate under the drive of the power assembly, the threaded block 11, due to the restriction of the guide plate 6 and the overall structure of the device, cannot rotate with the threaded rod 10; it can only move up and down along the axial direction of the threaded rod 10. The direction of movement of the threaded block 11 varies depending on the rotation direction of the threaded rod 10. For example, when the threaded rod 10 rotates clockwise, the threaded block 11 moves downward; when the threaded rod 10 rotates counterclockwise, the threaded block 11 moves upward. The side surface of the threaded block 11 is fixedly connected to the front end face of the guide plate 6, and the side edge of the lower end face of the guide plate 6 is hinged to the groove 5 of the receiving plate 403. When the threaded block 11 moves up and down, it drives the guide plate 6 to move. Since the guide plate 6 and the receiving plate 403 are hinged, the movement of the guide plate 6 will cause the receiving plate 403 to rotate around the hinge point, thereby adjusting the angle of the receiving plate 403.

[0036] The threaded engagement between the threaded rod 10 and the threaded block 11 has a self-locking function. This means that after the threaded rod 10 stops rotating, the threaded block 11 will be firmly locked in its current position and will not easily move due to external forces. This self-locking characteristic ensures that the receiving plate 403 remains stable after being adjusted to a suitable angle, and will not change angle when the device moves or is subjected to slight vibrations, thus ensuring the safety and stability of the fabric during the transfer process. At the same time, the threaded engagement has high precision. The operator can precisely control the number of rotations and angle of the rotating handle 1403 to achieve precise control of the movement distance of the threaded block 11, and thus precisely adjust the angle of the receiving plate 403 to meet the receiving needs of different types of fabrics.

[0037] The threaded hole 17 on the upper side of the front face of the adjusting column 7 provides stable support and guidance for the rotating rod 1401, ensuring that the rotating rod 1401 will not deviate or wobble during rotation, thus guaranteeing the accuracy and stability of power transmission. The various components of the power assembly work closely together to form an organic whole, collaboratively completing the task of adjusting the angle of the receiving plate. This collaborative mechanism makes the device more stable and reliable during operation, reduces the probability of failure, and improves the service life and production efficiency of the device.

[0038] The shape and size of the guide block 401 are adapted to the guide groove 3, and the guide groove 3 and the guide block 401 slide together. The shape and size of the receiving plate 403 are adapted to the inner window of the U-shaped plate 2, and the receiving plate 403 slides together with the inner window of the U-shaped plate 2.

[0039] The shape and size of the threaded block 11 are adapted to the threaded groove 9, and the threaded groove 9 and the threaded block 11 slide together.

[0040] like Figures 1 to 4As shown, when using a fabric transfer device in garment production, if the angle of the receiving plate 403 needs to be adjusted according to the receiving requirements of different types of fabric, the operator can turn the handle 1403 counterclockwise, causing the threaded rod 10 to rotate counterclockwise, which in turn drives the connecting rod and the rotating rod to rotate. The rotation of the rotating rod causes the face gear to rotate accordingly. Since the face gear meshes with the gear, the gear drives the threaded rod 10 to rotate. When the threaded rod 10 rotates, the threaded block 11, which is threadedly connected to the threaded rod 10, can only move up and down due to the restriction of the guide groove 3, etc., thus realizing the upward movement of the threaded block 11, which drives the guide plate 6 to move. The movement of the guide plate 6 is transmitted to the receiving plate 403. Since the receiving plate 403 is connected to the movable plate 402 through a hinge, the receiving plate 403 can rotate relative to the movable plate 402 around the hinge axis 4043, thereby realizing the angle adjustment. This allows the receiving plate 403 to be adjusted to a horizontal state, which facilitates the neat stacking of fabric. When it is necessary to support soft and easily deformable fabrics, the operator turns the handle 1403 clockwise, causing the threaded rod 10 to rotate clockwise. The threaded block 11 moves downward, driving the guide plate 6 to move downward, adjusting the receiving plate 403 to a vertical position. The hinge also ensures that the receiving plate 403 can smoothly complete the angle change, meeting the receiving requirements of different fabrics, reducing the large area of ​​contact between the fabric and the receiving plate 403, and reducing the risk of fabric deformation and damage.

[0041] The above are merely specific embodiments of this utility model, but the technical features of this utility model are not limited thereto. Any simple changes, equivalent substitutions, or modifications made based on this utility model to solve essentially the same technical problems and achieve essentially the same technical effects are all covered within the protection scope of this utility model.

Claims

1. A fabric transfer device for garment production, comprising a base plate (1), characterized in that: U-shaped plates (2) are fixedly connected to both sides of the upper end face of the base plate (1). Guide grooves (3) are opened on the two inner surfaces of the U-shaped plates (2). Movable components are jointly arranged in the guide grooves (3) on the same U-shaped plate (2). The movable components include guide blocks (401), movable plates (402), receiving plates (403) and hinges. Guide blocks (401) are fixedly connected to the front and rear end faces of the movable plate (402). The movable plate (402) is connected to the receiving plate (403) through the hinges. A receiving groove (5) is opened on the side of the lower end face of the receiving plate (403). A guide plate (6) is provided in the receiving groove (5). The lower end of the guide plate (6) The side of the base plate (1) is hinged to the groove of the receiving groove (5) on the lower end of the receiving plate (403). An adjusting column (7) and a fixing column (8) are fixedly connected to the front and rear sides of the upper end of the base plate (1). A threaded groove (9) is opened on the rear end face of the adjusting column (7). A threaded rod (10) is provided in the threaded groove (9). A threaded block (11) is threadedly connected to the lower circumferential side of the threaded rod (10). The side surface of the threaded block (11) is fixedly connected to the front end face of the guide plate (6). A power component is provided on the upper circumferential side of the threaded block (11). Baffles (12) are fixedly connected to the left and right sides of the upper end of the receiving plate (403). A positioning column (13) is fixedly connected to the middle of the upper end of the receiving plate (403).

2. The fabric transfer device for garment production according to claim 1, characterized in that: The bottom plate (1) is fixedly connected to several self-locking casters (15), and the front end face of the U-shaped plate (2) is fixedly connected to a handle (16).

3. The fabric transfer device for garment production according to claim 1, characterized in that: The hinge includes a hinge hole (4041), a hinge auxiliary hole (4042), and a hinge shaft (4043). The lower end face of the hinge hole (4041) is fixedly connected to the upper end face of the movable plate (402), and the side end face of the hinge auxiliary hole (4042) is fixedly connected to the side surface of the receiving plate (403). The hinge hole (4041), the hinge auxiliary hole (4042), and the hinge shaft (4043) are clearance-fitted, and the side surfaces of the hinge hole (4041) and the hinge auxiliary hole (4042) are tightly fitted.

4. The fabric transfer device for garment production according to claim 1, characterized in that: The adjusting column (7) has a threaded hole (17) on its front side. The power assembly includes a rotating rod (1401). The rotating rod (1401) extends through the threaded hole (17) into the threaded groove (9). The front end of the rotating rod (1401) is fixedly connected to a connecting rod (1402). The front end of the connecting rod (1402) is fixedly connected to a rotating handle (1403). The rear end of the rotating rod (1401) is fixedly connected to a face gear (1404). The upper circumferential side of the threaded rod (10) is fixedly connected to a gear (1405). The gear (1405) meshes with the face gear (1404).

5. A fabric transfer device for garment production according to claim 1, characterized in that: The shape and size of the guide block (401) are adapted to the guide groove (3), and the guide groove (3) and the guide block (401) are slidably engaged. The shape and size of the receiving plate (403) are adapted to the window inside the U-shaped plate (2), and the receiving plate (403) is slidably engaged with the window inside the U-shaped plate (2).

6. A fabric transfer device for garment production according to claim 1, characterized in that: The shape and size of the threaded block (11) are adapted to the threaded groove (9), and the threaded groove (9) and the threaded block (11) slide together.

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