Pressing tool

Abstract

The utility model relates to a pressing tool which comprises a base, an elastic mechanism and a rolling mechanism, the rolling mechanism is arranged on the base in a sliding mode, the elastic mechanism is arranged between the rolling mechanism and the base, a locking piece is arranged on the rolling mechanism, an operating piece is arranged on the base, and the elastic mechanism is arranged on the operating piece. And the operating piece, the locking piece and the elastic mechanism are matched to lock or unlock the rolling mechanism. According to the pressing tool, rolling elastic force is provided through the elastic force mechanism, when the elastic force between the rolling mechanism and the base does not reach the elastic force threshold value, the locking piece enables the rolling mechanism to be in the locking state all the time, and when the elastic force between the rolling mechanism and the base reaches the elastic force threshold value, the locking piece enables the rolling mechanism to be in the locking state all the time. Unlocking operation of the locking piece on the rolling mechanism is achieved through cooperation of the operating piece and the locking piece, the pressing tool can guarantee the rolling pressure applied by the rolling mechanism to the mute cotton when the rolling operation is executed, the pressing effect is improved, and the mute cotton is effectively pasted to the rim through the pressure-sensitive adhesive.

Description

Technical Field

[0001] This utility model relates to the field of tooling technology, and in particular to a pressing tool. Background Technology

[0002] With the development and advancement of vehicle technology, users have increasingly higher requirements for vehicle NVH performance. In order to improve the NVH performance of vehicles, sound-absorbing cotton is usually pasted on the rims of vehicle tires to reduce tire noise.

[0003] The sound-absorbing cotton is adhered to the wheel rim using pressure-sensitive adhesive. To ensure a good fit, pressure needs to be applied to both the cotton and the adhesive. Currently, the sound-absorbing cotton is manually rolled during the bonding process, making pressure control impossible. Therefore, existing technology cannot guarantee a satisfactory bonding effect. Utility Model Content

[0004] To solve the above-mentioned technical problems, this utility model provides a pressing tool that can ensure pressing pressure and improve pressing effect.

[0005] To achieve the above objectives, this utility model provides a pressing fixture, including a base, an elastic mechanism, and a roller pressing mechanism. The roller pressing mechanism is slidably disposed on the base, and the elastic mechanism is disposed between the roller pressing mechanism and the base. A locking element is provided on the roller pressing mechanism, and an operating element is provided on the base. The operating element, the locking element, and the elastic mechanism cooperate to lock or unlock the roller pressing mechanism.

[0006] In one embodiment of the present invention, a first sliding part is provided on the base, and the rolling mechanism includes a second sliding part, which is slidably disposed on the first sliding part.

[0007] In one embodiment of the present invention, a first limiting surface is provided on the first sliding part, a second limiting surface is provided on the second sliding part, and the elastic mechanism is disposed between the first limiting surface and the second limiting surface.

[0008] In one embodiment of the present invention, the roller pressing mechanism further includes a roller pressing base and a pressure roller, the roller pressing base being disposed on the second sliding part, and the pressure roller being rotatably disposed on the roller pressing base.

[0009] In one embodiment of the present invention, the locking member is disposed on the second sliding part, and the pressure roller is provided with a locking groove, wherein the locking member is located in the locking groove or disengaged from the locking groove.

[0010] In one embodiment of this utility model, the locking member is slidably disposed on the second sliding part along the radial direction of the pressure roller. The pressure roller is also provided with a separation groove, which is connected to the locking groove. The locking member slides from the separation groove to the locking groove, or the locking member slides from the locking groove to the separation groove. The separation groove is a circumferential through groove arranged around the axis of the pressure roller.

[0011] In one embodiment of the present invention, the locking member includes a fixing part, an elastic part, and a locking part, wherein the elastic part is disposed between the fixing part and the locking part, and the fixing part is disposed on the second sliding part.

[0012] In one embodiment of the present invention, the operating member abuts against or separates from the locking part, such that the locking part is located in or disengaged from the locking groove.

[0013] In one embodiment of the present invention, a limiting groove is provided on the part of the operating member that abuts against the locking part, and the limiting groove extends axially along the locking part.

[0014] In one embodiment of the present invention, a first limiting part is provided on the first sliding part, and a second limiting part is provided on the second sliding part, wherein the first limiting part and the second limiting part form a limiting mechanism.

[0015] The above-mentioned technical solution of this utility model has the following advantages compared with the prior art:

[0016] The pressing fixture of this application provides rolling pressure through an elastic mechanism. When the elastic force between the rolling mechanism and the base does not reach the elastic force threshold, the locking component keeps the rolling mechanism in a locked state. When the elastic force between the rolling mechanism and the base reaches the elastic force threshold, the locking component unlocks the rolling mechanism through the cooperation of the operating component and the locking component. The pressing fixture of this application can ensure the rolling pressure applied to the sound-absorbing cotton by the rolling mechanism during the rolling operation, improve the pressing effect, and enable the sound-absorbing cotton to be effectively adhered to the rim by pressure-sensitive adhesive. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 This is a first sectional view of the pressing tool of this utility model;

[0019] Figure 2 yes Figure 1 A magnified view of a section at point A in the middle;

[0020] Figure 3 This is a first structural schematic diagram of the pressing tool of this utility model;

[0021] Figure 4 yes Figure 3 A magnified view of a section at point B in the middle;

[0022] Figure 5 This is a schematic diagram of the second structure of the pressing tool of this utility model;

[0023] Figure 6 This is a schematic diagram of the third structure of the pressing tool of this utility model (the separation groove is triangular);

[0024] Figure 7 This is a second sectional view of the pressing tool of this utility model (the separation groove is triangular);

[0025] Figure 8 yes Figure 7 A magnified view of a section at point C;

[0026] Figure 9 This is a schematic diagram of the fourth structure of the pressing tool of this utility model (the separation groove is rectangular);

[0027] Figure 10 This is the third sectional view of the pressing tool of this utility model (the separation groove is rectangular);

[0028] Figure 11 yes Figure 10 A magnified view of a section at point D.

[0029] Explanation of reference numerals on the accompanying drawings:

[0030] 1. Base; 2. Elastic mechanism; 3. Roller pressing mechanism; 4. Locking element; 5. Operating element; 6. First sliding part; 7. Second sliding part; 8. First limiting surface; 9. Second limiting surface; 10. Roller pressing base; 11. Pressure roller; 12. Locking groove; 13. Fixing part; 14. Elastic part; 15. Locking part; 16. Limiting groove; 17. Sliding end; 18. Fixing end; 19. Operating handle; 20. Mounting seat; 21. Auxiliary guide roller; 22. Auxiliary base; 23. Sliding cavity; 24. Limiting element; 25. Separation groove; 26. Clutch end face; 27. Sliding groove; 28. Return spring. Detailed Implementation

[0031] To make the objectives, technical solutions, and advantages of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0032] Reference Figures 1 to 11 As shown, the pressing fixture of this utility model includes a base 1, an elastic mechanism 2, and a roller pressing mechanism 3. The roller pressing mechanism 3 is slidably mounted on the base 1. The elastic mechanism 2 is located between the roller pressing mechanism 3 and the base 1. A locking member 4 is provided on the roller pressing mechanism 3. An operating member 5 is provided on the base 1. The operating member 5, the locking member 4, and the elastic mechanism 2 cooperate to lock or unlock the roller pressing mechanism 3.

[0033] The pressing fixture of this application locks or unlocks the roller pressing mechanism 3 by cooperating with the operating component 5, the locking component 4, and the elastic mechanism 2. Specifically, as shown... Figure 1As shown, the pressing fixture of this application includes a base 1, an elastic mechanism 2, and a rolling mechanism 3. The base 1 provides support for the elastic mechanism 2 and the rolling mechanism 3; the elastic mechanism 2 provides elasticity between the rolling mechanism 3 and the base 1, further providing elasticity between the rolling mechanism 3 and the sound-absorbing cotton on the rim; the rolling mechanism 3 uses the elasticity provided by the elastic mechanism 2 to roll the sound-absorbing cotton, so that the sound-absorbing cotton is effectively adhered to the rim by pressure-sensitive adhesive. Furthermore, the rolling mechanism 3 is slidably mounted on the base 1, and the elastic mechanism 2 is positioned between the base 1 and the rolling mechanism 3, that is, one end of the elastic mechanism 2 is connected to the base 1, and the other end of the elastic mechanism 2 is connected to the rolling mechanism 3. When the roller pressing mechanism 3 slides relative to the base 1, the elastic mechanism 2 is compressed or extended, changing its elastic force. For example, when the roller pressing mechanism 3 is relatively close to the base 1, the elastic force of the elastic mechanism 2 increases; that is, the elastic force between the roller pressing mechanism 3 and the base 1 increases, and correspondingly, the elastic force between the roller pressing mechanism 3 and the sound-absorbing cotton on the rim increases. When the roller pressing mechanism 3 is relatively far from the base 1, the elastic force of the elastic mechanism 2 decreases; that is, the elastic force between the roller pressing mechanism 3 and the base 1 decreases, and correspondingly, the elastic force between the roller pressing mechanism 3 and the sound-absorbing cotton on the rim decreases. Furthermore, the base 1 is provided with an operating element 5, and the roller pressing mechanism 3 is provided with a locking element 4. The operating element 5, the locking element 4, and the elastic mechanism 2 cooperate to lock and unlock the roller pressing mechanism 3. The specific workflow is as follows: The user places the roller pressing mechanism 3 of the pressing fixture onto the sound-absorbing cotton on the rim, and then applies a certain pressure to the base 1. Since the roller pressing mechanism 3 abuts against the sound-absorbing cotton on the rim, the base 1 slides toward the roller pressing mechanism 3, and the elastic mechanism 2 is compressed, which increases the elastic force between the roller pressing mechanism 3 and the base 1. At the same time, the elastic force between the roller pressing mechanism 3 and the base 1 is transmitted to the roller pressing mechanism 3 and the sound-absorbing cotton. When the elastic force between the roller pressing mechanism 3 and the sound-absorbing cotton reaches the elastic force threshold, that is, when the elastic force of the elastic mechanism 2 reaches the elastic force threshold, the operating part 5 cooperates with the locking part 4, so that the locking part 4 unlocks the roller pressing mechanism 3. During this process, if the elastic force of the elastic mechanism 2 does not reach the elastic force threshold, the locking part 4 keeps the roller pressing mechanism 3 in a locked state and cannot perform the roller pressing operation of the sound-absorbing cotton. Therefore, the pressing fixture of this application provides rolling pressure through the elastic mechanism 2. When the elastic force between the rolling mechanism 3 and the base 1 does not reach the elastic force threshold, the locking member 4 keeps the rolling mechanism 3 locked. When the elastic force between the rolling mechanism 3 and the base 1 reaches the elastic force threshold, the locking member 4 unlocks the rolling mechanism 3 through the cooperation of the operating member 5 and the locking member 4. The pressing fixture of this application can ensure the rolling pressure applied by the rolling mechanism 3 to the sound-absorbing cotton when performing the rolling operation, improve the pressing effect, and make the sound-absorbing cotton effectively adhered to the rim by the pressure-sensitive adhesive.

[0034] In one embodiment, a first sliding part 6 is provided on the base 1, and the roller pressing mechanism 3 includes a second sliding part 7, which is slidably disposed on the first sliding part 6.

[0035] The roller pressing mechanism 3 of this application is slidably mounted on the base 1. Specifically, as shown... Figure 2 As shown, the first sliding part 6 of this application includes a sliding end 17 and a fixed end 18. The fixed end 18 is disposed on the base 1. The second sliding part 7 is provided with a limiting member 24. The second sliding part 7 is hollow to form a sliding groove. The limiting member 24 and the sliding groove form a sliding cavity 23. The sliding end 17 is slidably disposed in the sliding cavity 23 so that the second sliding part 7 can slide on the first sliding part 6 through the cooperation of the sliding end 17 and the sliding cavity 23. The limiting member 24 can be used to prevent the sliding end 17 of the first sliding part 6 from disengaging from the sliding cavity 23 of the second sliding part 7.

[0036] In one embodiment, a first limiting surface 8 is provided on the first sliding part 6, a second limiting surface 9 is provided on the second sliding part 7, and an elastic mechanism 2 is disposed between the first limiting surface 8 and the second limiting surface 9.

[0037] The pressing device of this application provides elasticity between the roller pressing mechanism 3 and the base 1 through the elastic mechanism 2, so as to facilitate the transmission of elasticity between the roller pressing mechanism 3 and the sound-absorbing cotton. The elastic mechanism 2 is disposed between the base 1 and the roller pressing mechanism 3, specifically, as follows: Figure 2 As shown, the elastic mechanism 2 is disposed between the first sliding part 6 on the base 1 and the second sliding part 7 on the roller pressing mechanism 3. Furthermore, the elastic mechanism 2 employs a compression spring. The sliding end 17 is slidably disposed in the sliding cavity 23. The top surface of the sliding end 17 forms a first limiting surface 8, and the top surface of the sliding cavity 23 forms a second limiting surface 9. The compression spring is installed between the first limiting surface 8 and the second limiting surface 9. When the roller pressing mechanism 3 rolls onto the sound-absorbing cotton, causing the base 1 to slide close to the roller pressing mechanism 3, the compression spring is compressed. Since the compression spring is disposed between the first limiting surface 8 and the second limiting surface 9, the elastic force generated by the compression spring is equal to the elastic force between the roller pressing mechanism 3 and the base 1, and is also equal to the pressure between the roller pressing mechanism 3 and the sound-absorbing cotton.

[0038] In one embodiment, the roller pressing mechanism 3 further includes a roller pressing base 10 and a pressure roller 11. The roller pressing base 10 is disposed on the second sliding part 7, and the pressure roller 11 is rotatably disposed on the roller pressing base 10.

[0039] This application uses a roller pressing mechanism 3 to press the sound-absorbing cotton on the rim. Specifically, the roller pressing mechanism 3 includes a second sliding part 7, a roller pressing base 10, and a pressure roller 11. The roller pressing base 10 provides rolling support for the pressure roller 11, and the pressure roller 11 is used to press the sound-absorbing cotton. The roller pressing mechanism 3 slides relative to the base 1 through the second sliding part 7. Further, as... Figure 3 As shown, two roller pressing bases 10 and two sliding parts 7 are provided. One roller pressing base 10 and one second sliding part 7 form a mounting base 20. There are two mounting bases 20 in total. One end of the pressure roller 11 is rotatably mounted on the roller pressing base 10 of one of the mounting bases 20, and the other end of the pressure roller 11 is rotatably mounted on the roller pressing base 10 of the other mounting base 20. A bearing is provided between the pressure roller 11 and the roller pressing base 10 to realize rotatable movement.

[0040] In one embodiment, the locking member 4 is disposed on the second sliding part 7, and the pressure roller 11 is provided with a locking groove 12, wherein the locking member 4 is located in the locking groove 12 or disengaged from the locking groove 12.

[0041] This application achieves locking and unlocking of the roller pressing mechanism 3 through the cooperation of the locking groove 12 and the locking element 4 on the roller pressing mechanism 3. Specifically, as shown... Figure 4 As shown, the locking member 4 is disposed on the second sliding part 7 of the roller pressing mechanism 3, and the locking groove 12 is disposed on the pressure roller 11 of the roller pressing mechanism 3. When the locking member 4 is located in the locking groove 12, the locking member 4 blocks the rotation of the locking groove 12, thereby preventing the pressure roller 11 from rotating and preventing the roller pressing operation of the sound-absorbing cotton from being performed. When the locking member 4 disengages from the locking groove 12, the locking groove 12 can disengage from the obstruction of the locking member 4, allowing the pressure roller 11 to rotate, so as to perform the roller pressing operation of the sound-absorbing cotton.

[0042] In one embodiment, the locking member 4 is slidably disposed on the second sliding part 7 along the radial direction of the pressure roller 11. The pressure roller 11 is also provided with a separation groove 25, which is connected to the locking groove 12. The locking member 4 slides from the separation groove 25 to the locking groove 12, or the locking member 4 slides from the locking groove 12 to the separation groove 25. The separation groove 25 is a circumferential through groove arranged around the axis of the pressure roller 11.

[0043] The locking element 4 in this application is a fixing rod fixed to the second sliding part 7, such as Figures 6-11 As shown. Specifically, the pressure roller 11 of this application is provided with a separation groove 25 and a locking groove 12. The separation groove 25 is a circumferential through groove arranged around the axis of the pressure roller 11, and the separation groove 25 is connected to the locking groove 12. Figure 6 , Figure 7 and Figure 8 As shown, the end face of the locking groove 12 on the pressure roller 11 is the clutch end face 26. The clutch end face 26 is inclined, and it is inclined inward from its outer edge to its inner edge along the axial direction of the pressure roller 11, so that the cross-section of the separation groove 25 is triangular. Figure 8 As shown. Or as... Figure 9 , Figure 10 and Figure 11As shown, the cross-section of the separation groove 25 is rectangular. Along the radial direction of the pressure roller 11, the locking groove 12 and the separation groove 25 are arranged in sequence. The separation groove 25 extends from the clutch end face 26 in the axial direction of the pressure roller 11 to a predetermined depth, so that the locking member 4 is located in the separation groove 25 when the pressure roller 11 rotates. When the locking member 4 is not lifted by the operating member 5, the locking member 4 remains within the locking groove 12, preventing the locking groove 12 from rotating and thus preventing the pressure roller 11 from rotating. When the operating member 5 lifts the locking member 4, the locking member 4 slides along the axis of the pressure roller 11 on the second sliding part 7. When the elastic force of the elastic mechanism 2 reaches the elastic force threshold, the locking member 4 disengages from the locking groove 12 and slides into the separation groove 25. Since the separation groove 25 is a circumferential through groove arranged around the axis of the pressure roller 11, the locking member 4 is located within the separation groove 25 when the pressure roller 11 rotates, allowing the locking groove 12 to disengage from the obstruction of the locking member 4, enabling the pressure roller 11 to rotate and facilitating the rolling operation of the silent cotton. Furthermore, as... Figure 8 and Figure 11 As shown, a sliding groove 27 is provided on the second sliding part 7. One end of the locking member 4 is slidably disposed in the sliding groove 27, and a return spring 28 is provided in the sliding groove 27. One end of the return spring 28 abuts against the top surface of the sliding groove 27, and the other end of the return spring 28 abuts against the end of the locking member 4 located in the sliding groove 27. The return spring 28 ensures that the locking member 4 is always located at the end away from the axis of the pressure roller 11 in the sliding groove 27. That is, in the free state, the locking member 4 is always located in the locking groove 12.

[0044] In one embodiment, the locking member 4 includes a fixing part 13, an elastic part 14 and a locking part 15, the elastic part 14 being disposed between the fixing part 13 and the locking part 15, and the fixing part 13 being disposed on the second sliding part 7.

[0045] The locking member 4 of this application allows the locking member 15 to be in different positional states via the elastic portion 14. Specifically, as shown... Figure 4 As shown, the locking member 4 of this application includes a fixing part 13, an elastic part 14, and a locking part 15 arranged sequentially. The locking member 4 is connected to the second sliding part 7 via the fixing part 13. Since the elastic part 14 is disposed between the fixing part 13 and the locking part 15, the locking part 15 of the locking member 4 can be in different position states through the elastic deformation of the elastic part 14, thereby causing the locking part 15 to be located in the locking groove 12 on the pressure roller 11, or causing the locking part 15 to be in a state of disengagement from the locking groove 12 under the elastic deformation of the elastic part 14. The elastic part is a spring.

[0046] In one embodiment, the operating member 5 abuts against or separates from the locking part 15, such that the locking part 15 is located in or disengaged from the locking groove 12.

[0047] The operating component 5 of this application cooperates with the locking part 15 to lock or unlock the pressure roller 11. Specifically, as shown... Figure 4 As shown, the operating component 5 is mounted on the base 1. When the user uses the pressing fixture, the pressure roller 11 presses against the sound-absorbing cotton on the rim. The user presses the base 1, causing the second sliding part 7 of the roller pressing mechanism 3 to slide relative to the first sliding part 6 on the base 1, and the base 1 slides closer to the roller pressing mechanism 3. The elastic mechanism 2 is further compressed. Since the locking component 4 is mounted on the second sliding part 7 of the roller pressing mechanism 3, the operating component 5 slides closer to the locking part 15 of the locking component 4 under the drive of the base 1. The user continues to press the base 1, causing the operating component 5 to contact the locking part 15 and lift the locking part 15, causing the locking part 15 to disengage from the locking groove 12. At the same time, the elastic part 14 undergoes elastic deformation. When the locking part 15 disengages from the locking groove 12... When the cotton detaches from the rim, the elastic force generated by the elastic mechanism 2 is sufficient to effectively adhere the sound-absorbing cotton to the rim. Therefore, only when the elastic mechanism 2 reaches the compression distance, that is, when the pressure between the roller pressing mechanism 3 and the sound-absorbing cotton reaches the elasticity threshold, will the operating member 5 lift the locking part 15, allowing the pressure roller 11 to rotate and perform the rolling operation of the sound-absorbing cotton on the rim. When the user presses the base 1, if the operating member 5 cannot push the locking part 15 out of the locking groove 12, the elastic mechanism 2 has not reached the compression distance, that is, the pressure between the roller pressing mechanism 3 and the sound-absorbing cotton has not reached the elasticity threshold. At this time, the locking member 4 places the locking groove 12 in a locked state, the pressure roller 11 cannot rotate, and the rolling operation of the sound-absorbing cotton on the rim cannot be performed. Furthermore, after the user finishes using the pressing fixture, the user removes the pressing fixture from the rim. The roller pressing mechanism 3 slides away from the base 1 under the elastic force of the elastic mechanism 2. Simultaneously, the locking part 15 returns to its initial state under the elastic deformation of the elastic part 14 and inserts into the locking groove 12 of the pressure roller 11, thus locking the pressure roller 11 with the locking part 15. Furthermore, as... Figure 3 As shown, several locking grooves 12 are arranged in a circumferential array around the axis of the pressure roller 11. The locking part 15 of the locking member 4 can be inserted into the locking groove 12 closest to it to lock the pressure roller 11. The depth direction of the locking groove 12 is along the axial direction of the locking member 4, and the axial direction of the locking member 4 is along the axial direction of the pressure roller 11, so that the locking part 15 of the locking member 4 can be inserted into the locking groove 12 along the axial direction of the pressure roller 11 to lock the pressure roller 11. The length direction of the locking groove 12 is along the sliding direction of the roller pressing mechanism 3, so that when the operating member 5 lifts the locking part 15, the locking part 15 can slide in the locking groove 12 along the sliding direction of the roller pressing mechanism 3 and disengage from the locking groove 12, thereby realizing the unlocking operation of the locking part 15 on the pressure roller 11. Preferably, the axial direction of the locking member 4 is perpendicular to the sliding direction of the roller pressing mechanism 3.

[0048] In one embodiment, a limiting groove 16 is provided on the part of the operating member 5 that abuts against the locking part 15, and the limiting groove 16 extends axially along the locking part 15.

[0049] This application prevents the locking part 15 from tilting when it is lifted by the operating member 5 by using a limiting groove 16 on the operating member 5. Specifically, the sliding direction of the roller pressing mechanism 3 on the base 1 is along the radial direction of the pressure roller 11, the axis of the locking member 4 is along the axial direction of the pressure roller 11, and the operating member 5 is used to cooperate with the locking part 15 of the locking member 4 to push the locking part 15 away from the locking groove 12. Therefore, a limiting groove 16 is provided on the part of the operating member 5 that abuts against the locking part 15, such as... Figure 4 As shown, a limiting groove 16 is provided at the top center of the operating member 5. The limiting groove 16 extends axially along the locking part 15, and the limiting groove 16 is a V-shaped groove. When the operating member 5 lifts the locking part 15, the V-shaped groove can prevent the locking part 15 from tilting and deviating, thereby improving the operational stability of the operating member 5 when lifting the locking part 15, and thus ensuring the normal lifting operation of the operating member 5 on the locking member 4. In addition, as Figure 2 As shown, the distance between the top surface of the base 1 and the bottom surface of the limiting member 24 is set to limit the sliding distance of the operating rod 5 along the radial direction of the pressure roller 11, thereby preventing the operating rod 5 from sliding too far and causing the elastic part 14 to undergo plastic deformation when the locking part 15 is lifted. That is, the elastic part 14 is always in an elastic deformation state, so that the elastic part 14 can recover to a free state when the operating rod 5 is separated from the locking part 15.

[0050] In one embodiment, the pressing fixture also includes an operating handle 19, which is disposed on the base 1 on the side away from the roller pressing mechanism 3.

[0051] The pressing fixture of this application performs roller pressing operation via operating handle 19. Specifically, as shown... Figure 3 As shown, the pressing fixture includes an operating handle 19, which is disposed on the base 1 and located on the side of the base 1 away from the roller pressing mechanism 3, so as to provide operating space for the user and facilitate the user to move the pressing fixture to perform the roller pressing operation through the operating handle 19.

[0052] In one embodiment, the pressing fixture further includes an auxiliary guide roller 21 and an auxiliary base 22, the auxiliary base 22 being disposed on the base 1, and the auxiliary guide roller 21 being rotatably disposed on the auxiliary base 22.

[0053] The pressing fixture of this application improves the rolling stability through the auxiliary guide roller 21. Specifically, as shown... Figure 5As shown, the pressing fixture also includes an auxiliary guide roller 21 and an auxiliary base 22. The auxiliary base 22 is directly set on the base 1. The auxiliary base 22 is the same as the second sliding part 7 of the rolling mechanism 3, and there is no need to set the locking part 4. The auxiliary guide roller 21 is the same as the pressure roller 11, and there is no need to set the locking groove 12. The auxiliary guide roller 21 only serves as an auxiliary rolling support, so that the user can roll the sound-absorbing cotton on the rim by operating the handle 19. When performing the rolling operation, the auxiliary guide roller 21 and the pressure roller 11 roll on the sound-absorbing cotton on the rim at the same time to improve the rolling stability.

[0054] Note that the above description is merely a preferred embodiment of the present invention and the technical principles employed. Those skilled in the art will understand that the present invention is not limited to the specific embodiments described herein, and various obvious changes, readjustments, and substitutions can be made without departing from the scope of protection of the present invention. Therefore, although the present invention has been described in detail through the above embodiments, the present invention is not limited to the above embodiments, and may include many other equivalent embodiments without departing from the concept of the present invention. The scope of the present invention is determined by the scope of the appended claims.

Claims

1. A pressing tool, characterized in that: The device includes a base (1), an elastic mechanism (2), and a roller pressing mechanism (3). The roller pressing mechanism (3) is slidably disposed on the base (1). The elastic mechanism (2) is disposed between the roller pressing mechanism (3) and the base (1). The roller pressing mechanism (3) is provided with a locking member (4). The base (1) is provided with an operating member (5). The operating member (5), the locking member (4), and the elastic mechanism (2) cooperate to lock or unlock the roller pressing mechanism (3).

2. The pressing fixture according to claim 1, characterized in that: The base (1) is provided with a first sliding part (6), and the roller pressing mechanism (3) includes a second sliding part (7), which is slidably disposed on the first sliding part (6).

3. The pressing fixture according to claim 2, characterized in that: The first sliding part (6) is provided with a first limiting surface (8), the second sliding part (7) is provided with a second limiting surface (9), and the elastic mechanism (2) is disposed between the first limiting surface (8) and the second limiting surface (9).

4. The pressing fixture according to claim 2, characterized in that: The roller pressing mechanism (3) further includes a roller pressing base (10) and a pressure roller (11). The roller pressing base (10) is disposed on the second sliding part (7), and the pressure roller (11) is rotatably disposed on the roller pressing base (10).

5. The pressing fixture according to claim 4, characterized in that: The locking member (4) is disposed on the second sliding part (7), and the pressure roller (11) is provided with a locking groove (12). The locking member (4) is located in the locking groove (12) or disengaged from the locking groove (12).

6. The pressing fixture according to claim 5, characterized in that: The locking member (4) is slidably disposed on the second sliding part (7) along the radial direction of the pressure roller (11). The pressure roller (11) is also provided with a separation groove (25). The separation groove (25) is connected to the locking groove (12). The locking member (4) slides from the separation groove (25) to the locking groove (12), or the locking member (4) slides from the locking groove (12) to the separation groove (25). The separation groove (25) is a circumferential through groove arranged around the axis of the pressure roller (11).

7. The pressing fixture according to claim 5, characterized in that: The locking member (4) includes a fixing part (13), an elastic part (14) and a locking part (15). The elastic part (14) is disposed between the fixing part (13) and the locking part (15). The fixing part (13) is disposed on the second sliding part (7).

8. The pressing fixture according to claim 7, characterized in that: The operating member (5) abuts against or separates from the locking part (15), such that the locking part (15) is located in or disengaged from the locking groove (12).

9. The pressing fixture according to claim 7, characterized in that: A limiting groove (16) is provided on the part of the operating member (5) that abuts against the locking part (15), and the limiting groove (16) extends axially along the locking part (15).

10. The pressing fixture according to claim 1, characterized in that: The pressing fixture also includes an auxiliary guide roller (21) and an auxiliary base (22). The auxiliary base (22) is disposed on the base (1), and the auxiliary guide roller (21) is rotatably disposed on the auxiliary base (22).

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