Clamping jaw spacing adjusting structure

Abstract

The utility model discloses a clamping jaw spacing adjusting structure, which is arranged in a material conveying device and comprises a locking piece mounting block, two ends of the locking piece mounting block are fixedly connected with two different first fixing plates respectively, and the locking piece mounting block is provided with a matching groove; the fixed locking piece is arranged on the surface, close to the side of the locking piece mounting block, of the second fixed plate; one end of the movable locking piece is connected with the locking piece mounting block through a shaft part, and the movable locking piece rotates by taking the end part, which is in shaft connection with the locking piece mounting block, of the movable locking piece as a rotating center; the center of the limiting piece is connected to the other end of the movable lock piece by installing a shaft part, according to the structure, the end of the rotating piece enters or moves out of the matching groove to control the rotating action of the movable lock piece, and therefore connection or disconnection between the movable lock piece and the fixed lock piece is achieved, and when the movable lock piece and the fixed lock piece are in the disengaged state, the limiting piece can rotate. The distance between the two clamping jaws can be adjusted, and when the two clamping jaws are in a connected state, the positions of the clamping jaws can be firmly fixed so as to guarantee normal material conveying.

Description

Technical Field

[0001] The utility model relates to the technical field of material transmission devices in sewing processing, in particular to a clamping jaw spacing adjustment structure. Background Art

[0002] In order to adapt to the feeding needs of materials of different specifications, the feeding devices in the existing back buckle production sewing equipment are provided with some structures that can be used to adjust the distance between the clamping jaws that clamp the materials, such as the feeding device disclosed in the Chinese invention patent with publication number CN108818598B. The clamping assembly in the feeding device utilizes the up and down swinging of the clamping plate to achieve the relative fixation and release of the clamping block and the slide rail, thereby adjusting the distance between the two clamping jaws in opposite directions.

[0003] However, this structure requires the operator to swing the clamping plate up and down when adjusting the distance between the two clamping claws in opposite directions. Since the operator needs to overcome the elastic restoring force of the clamping block when swinging the clamping plate up and down in order to achieve the relative fixation and release of the clamping block and the slide rail, if a stable connection between the clamping block and the slide rail is required, the clamping block needs to maintain good rigidity to form a reverse force on the clamping plate to maintain the stable position of the clamping plate, so that the clamping plate will not swing up and down by itself under the action of external force. This also makes it require a lot of effort to swing the clamping plate up and down in actual operation, and the convenience of achieving the relative fixation and release of the clamping block and the slide rail is also low.

[0004] Moreover, since the relative fixation of the clamping block and the slide rail is achieved by squeezing the clamping block on the surface of the slide rail, and the direction in which the feeding device transmits the material is perpendicular to the squeezing direction of the clamping block, during the process of the feeding device transmitting the material, the relative fixation of the clamping block and the slide rail is maintained by the static friction between the surface of the clamping block and the surface of the slide rail. The magnitude of the static friction depends on the roughness of the surfaces of the two objects. When the materials of the clamping block and the slide rail are both smooth-surface steel, the static friction between the clamping block and the slide rail is small, resulting in defects in the fixing effect between the clamping block and the slide rail in the direction in which the feeding device transmits the material. The relatively fixed connection between the clamping block and the slide rail will disappear after being continuously subjected to the force in the same direction as the material transmitted by the feeding device, resulting in the inability to fix the position of the clamp. Utility Model Content

[0005] In view of the above technical deficiencies, the utility model provides a jaw spacing adjustment structure which is arranged in a sewing device and is used to adjust the position of a clamping jaw in a material transmission device, and controls the rotational movement of a movable locking member by the end of a rotating member entering or moving out of a matching groove, thereby realizing the connection or disconnection between the movable locking member and the fixed locking member, and utilizing the connection or disconnection between the two to achieve the effect of adjusting the distance between the two clamping jaws and fixing the position of the clamping jaw.

[0006] In order to achieve the above object, the utility model is implemented through the following technical solutions:

[0007] The utility model discloses a clamping jaw spacing adjustment structure, which is arranged in a material transmission device with at least two clamping jaw assemblies, which uses a fixed plate that can move the position to fix the clamping jaw assemblies, and uses a driving source to drive the fixed plate to move all the clamping jaw assemblies, and includes:

[0008] A lock mounting block, both ends of which are respectively fixedly connected to two different fixing plates, and the lock mounting block is provided with a matching groove;

[0009] A fixed lock, arranged on the surface of the second fixing plate close to the lock installation block;

[0010] A movable lock, one end of which is connected to the lock mounting block via a shaft-like component, and the movable lock is rotated to the fixed lock side by using the end connected to the lock mounting block shaft as a rotation center, and is connected to the fixed lock in a direction parallel to and perpendicular to the material transmission direction;

[0011] A limit piece, the center of which is connected to the other end of the movable lock piece by inserting a shaft-like component. By rotating the limit piece, the end of the limit piece enters or moves out of the matching groove between the movable lock piece and the wall surface of the lock piece mounting block, thereby limiting the rotational movement of the movable lock piece.

[0012] Furthermore, the proximal end surfaces of the movable locking element and the fixed locking element are both provided with a row of engaging teeth, and the movable locking element and the fixed locking element are connected by meshing the engaging teeth of the two elements.

[0013] Furthermore, a magnet is provided on the end surface of the movable locking member close to the fixed locking member, the fixed locking member is a long iron block, and the movable locking member is connected to the fixed locking member by magnetic attraction.

[0014] Furthermore, one end of the limit member is a raised portion that protrudes beyond the portion of the limit member into which the shaft component is inserted, and the position of the raised portion after entering the mating groove is located between the movable lock and the lock mounting block, and the port width of the mating groove close to the limit member side is greater than the width of the portion of the mating groove away from the limit member side.

[0015] Furthermore, the other end of the limiting member is a handle, and the diameter of the handle is larger than the diameter of the portion of the limiting member that is inserted into the shaft component.

[0016] Furthermore, there is a gap between the port wall surface of the matching groove close to the limiting member side and the rotation range of the protruding portion.

[0017] Furthermore, the protrusion is rotated to the end of the matching groove close to the limiting member side and is tangent to the wall surface of the end of the matching groove to form a fixed connection.

[0018] Furthermore, a spring is fixedly connected to the end surface of the movable lock close to the lock installation block, and the other end of the spring is fixedly connected to the wall surface of the lock installation block in the matching groove.

[0019] Furthermore, a positioning hole is provided at the end of the movable locking member close to the limiting member.

[0020] Furthermore, a fixing plate connected to the end of the lock installation block close to the limiting member is provided with a second groove whose width and depth are both greater than the diameter of the limiting member and whose opening direction faces the limiting member.

[0021] The beneficial effects of the utility model are:

[0022] The adjusting structure can control the rotation range of the movable lock member by rotating the rotating member so that the end of the rotating member enters or moves out of the matching groove, thereby realizing the connection or disengagement between the movable lock member and the fixed lock member. When the movable lock member and the fixed lock member are in the disengaged state, the fixed plate 1 connected to the lock member mounting block can be moved on the fixed plate 2, so that the position of the fixed plate 1 connected to the other end of the lock member mounting block and the clamping jaw assembly fixed by the fixed plate 1 can be moved, so that the position of the clamping jaw in the material transmission device can be adjusted; after the position of the clamping jaw is adjusted, the two clamping jaws with opposite directions for clamping materials are The spacing between the claws is adjusted, and the claws of the material conveying device can adapt to the needs of material conveying and clamping of materials of different sizes. The connection or disconnection between the movable locking member and the fixed locking member can be achieved without expending much effort, making the position adjustment operation of the claws simple and quick. After the movable locking member is connected to the fixed locking member, the two form a connection in the direction parallel to the material conveying direction and perpendicular to the material conveying direction, thereby firmly locking the position of the fixed plate 1, so that the adjustment structure can still keep the position of the claws unchanged in the direction parallel to the material conveying direction after being subjected to the force in the material conveying direction for a long time. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 A schematic diagram of the structure.

[0024] Figure 2 It is a schematic diagram of the movable lock connected to the lock mounting block.

[0025] Figure 3 It is a schematic diagram of the movable lock member after the end of the limiting member is located between the movable lock member and the lock member mounting block.

[0026] Figure 4 It is a schematic diagram of the movable lock member after the end of the limiting member is located between the movable lock member and the lock member mounting block.

[0027] Figure 5 A schematic diagram of a structure in which a movable locking element is connected to a fixed locking element.

[0028] Figure 6 A schematic diagram of another structure for connecting a movable locking element to a fixed locking element.

[0029] Figure 7 It is a schematic diagram of the structure of the limiter.

[0030] Figure 8 It is a schematic diagram of one of the states after the protrusion enters the matching groove.

[0031] Fig. 9 It is a schematic diagram of another state after the protrusion enters the matching groove.

[0032] Fig.10 Schematic diagram of the spring structure Figure 1 .

[0033] Fig.11 Schematic diagram of the spring structure Figure 2 .

[0034] Fig.12 It is a structural schematic diagram when the limiting member is connected to the movable locking member.

[0035] Fig.13 This is a schematic diagram of the structure when the adjustment structure is set in the material conveying device.

[0036] Fig.14 Schematic diagram of the structure of the second groove.

[0037] In the figure, 1, lock mounting block; 101, matching groove; 2, fixed lock; 3, movable lock; 4, limit member; 5, bite tooth; 6, magnet; 401, protrusion; 402, handle; 301, spring; 302, positioning hole; 7, second groove; 8, clamping jaw assembly; 9, fixing plate one; 10, fixing plate two. DETAILED DESCRIPTION

[0038] The utility model discloses a clamping jaw spacing adjustment structure, such as Figure 1 , Figure 2 , Figure 3 , Figure 4 , Fig.13 and Fig.14 As shown in combination, the adjustment structure is arranged in a material conveying device with at least two clamping jaw assemblies 8, the clamping jaw assemblies 8 are fixed by a fixed plate 1 9 that can be moved, and the fixed plate 2 10 is driven by a driving source to move all the clamping jaw assemblies 8, including:

[0039] The lock mounting block 1 has two ends respectively fixedly connected to two different fixing plates 9, and the lock mounting block 1 is provided with a matching groove 101;

[0040] A fixed lock 2, arranged on a surface of the second fixing plate 10 close to the lock mounting block 1;

[0041] A movable lock 3, one end of which is connected to the lock mounting block 1 through a shaft-like component, and the movable lock 3 is rotated to the side of the fixed lock 2 by using the end connected to the lock mounting block 1 as the rotation center, and is connected to the fixed lock 2 in a direction parallel to the material transmission direction and perpendicular to the material transmission direction;

[0042] The center of the limit member 4 is connected to the other end of the movable lock member 3 by inserting a shaft-like component. By rotating the limit member 4, the end of the limit member 4 enters or moves out of the matching groove 101 between the movable lock member 3 and the wall of the lock member mounting block 1 to limit the rotation movement of the movable lock member 3.

[0043] When the movable locking member 3 is in a state of rotation and the movable locking member 3 is in a state of rotation,, the movable locking member 3 is in a state of rotation and the movable locking member 3 is in a state of rotation, and the movable locking member 3 is in a state of rotation ... The position of the movable lock member 3 no longer changes, and the movement of the movable lock member 3 rotating toward the side away from the fixed lock member 2 is also limited by the end of the limit member 4, and the movable lock member 3 is also in the matching groove 101 at this time, and the matching groove 101 also has a limiting effect on the movement of the movable lock member 3 in the height direction, so that the movable lock member 3 and the lock member mounting block 1 are relatively fixed, and the positions of the two no longer change. Moreover, after the movable lock member 3 is connected to the fixed lock member 2, the two form a connection in the direction parallel to the material transmission direction and in the direction perpendicular to the material transmission direction, thereby firmly locking the position of the fixed plate 9, so that the adjustment structure can still keep the position of the clamping claw parallel to the material transmission direction unchanged after being subjected to the force in the material transmission direction for a long time; therefore, in the process of the material transmission device transmitting materials, the positions of the components in the entire adjustment structure remain stable, so that the material transmission device can also stably transmit objects.

[0044] In addition, after the adjustment structure adjusts the position of the clamping jaws, the spacing between the two clamping jaws in opposite directions of the material is adjusted. The clamping jaws of the material conveying device can adapt to the needs of conveying and clamping materials of different sizes. The connection or disconnection between the movable locking element 3 and the fixed locking element 2 can be achieved without expending much effort, making the position adjustment operation of the clamping jaws simple and quick.

[0045] As one of the embodiments of the present utility model, Figure 5 As shown, the proximal end surfaces of the movable locking member 3 and the fixed locking member 2 are both provided with a row of engaging teeth 5 , and the movable locking member 3 and the fixed locking member 2 are connected by the meshing of the engaging teeth 5 of the two.

[0046] Among them, the movable lock member 3 and the fixed lock member 2 are meshed with the bite teeth 5, and a stable connection structure can be formed between the movable lock member 3 and the fixed lock member 2. When the material transmission device moves, the movable lock member 3 is restricted from rotating by the lock member mounting block 1, the limit member 4 and the fixed lock member 2, so as to avoid the problem that the fixed plate 1 9 close to the fixed plate 2 10 moves due to the rotation of the movable lock member 3, resulting in the collision of the two clamping jaws with opposite directions of clamping the material.

[0047] As one of the embodiments of the present utility model, Figure 6 As shown, a magnet 6 is provided on the end surface of the movable lock 3 close to the fixed lock 2. The fixed lock 2 is a long iron block. The movable lock 3 is connected to the fixed lock 2 by magnetic attraction.

[0048] The difference between this embodiment and the previous embodiment is that this embodiment utilizes the engagement teeth 5 of the movable locking member 3 and the fixed locking member 2 to form a stable connection structure between the movable locking member 3 and the fixed locking member 2, thereby achieving the purpose of avoiding the collision of two clamping jaws with opposite directions of clamping materials.

[0049] Preferably, Figure 1 , Figure 3 , Figure 4 and Figure 7 As shown in combination, one end of the limit member 4 in this embodiment is a protrusion 401 that protrudes beyond the portion of the limit member 4 where the shaft component is inserted, and the position of the protrusion 401 after entering the matching groove 101 is located between the movable lock 3 and the lock mounting block 1, and the port width of the matching groove 101 close to the limit member 4 side is greater than the width of the portion of the matching groove 101 away from the limit member 4 side.

[0050] Among them, the rotation limit member 4 makes the protrusion 401 enter the matching groove 101 position between the movable lock member 3 and the lock member mounting block 1, and the movement of the movable lock member 3 rotating toward the side away from the fixed lock member 2 will be restricted by the protrusion 401, and the port of the matching groove 101 can facilitate the protrusion 401 to enter the matching groove 101 position between the movable lock member 3 and the lock member mounting block 1.

[0051] As a further preference of the above embodiment, Figure 7 As shown, the other end of the limiting member 4 is a handle 402, and the diameter of the handle 402 is larger than the diameter of the portion of the limiting member 4 that is inserted into the shaft component.

[0052] The handle 402 allows the operator to easily hold the portion of the limiting member 4 away from the protruding portion 401 , thereby facilitating the operator to rotate the limiting member 4 .

[0053] As a further preference of the above embodiment, Figure 8 As shown, there is a gap between the port wall surface on one side of the matching groove 101 close to the limit member 4 and the rotation range of the protrusion 401, and the port wall surface on the other side of the matching groove 101 close to the limit member 4 is located within the rotation range of the protrusion 401, so that the operation of the protrusion 401 rotating into the matching groove 101 and reaching between the movable lock 3 and the lock mounting block 1 will not become laborious due to the port wall surface of the matching groove 101.

[0054] As a further preference of the above embodiment, Fig. 9 As shown, the protrusion 401 rotates to the end of the matching groove 101 close to the limiting member 4 and is tangent to the wall surface of the end of the matching groove 101 to form a fixed connection.

[0055] Among them, even if the protrusion 401 contacts the wall surface of the end of the matching groove 101, making it difficult to rotate the protrusion 401 into the matching groove 101 between the movable lock 3 and the lock mounting block 1, after the protrusion 401 reaches between the movable lock 3 and the lock mounting block 1, the protrusion 401 and the wall surface of the end of the matching groove 101 also form a stable connection structure, so that the protrusion 401 will not be shaken and rotated during the material transmission process of the material transmission device, which plays a certain role in maintaining the position of the limit member 4.

[0056] Preferably, Fig.10 and Fig.11 As shown in the figure, in this embodiment, the end surface of the movable lock 3 close to the lock mounting block 1 is fixedly connected with a spring 301 , and the other end of the spring 301 is fixedly connected to the wall surface of the lock mounting block 1 in the matching groove 101 .

[0057] Among them, Fig.10As shown, if the spring 301 is a spring that pushes the movable lock member 3 to rotate toward the fixed lock member 2, the movable lock member 3 can utilize the elastic recovery effect of the spring 301 to make the connection between it and the fixed lock member 2 tighter, which is beneficial to maintain the stability of the movable lock member 3 and the fixed lock member 2 during operation;

[0058] In addition, if Fig.11 As shown, if the spring 301 is a spring that pulls the movable lock member 3 to rotate away from the fixed lock member 2, the movable lock member 3 can utilize the elastic recovery effect of the spring 301, and when the end of the limiting member 4 is moved out from between the movable lock member 3 and the lock member mounting block 1, the movable lock member 3 can be quickly pulled to rotate away from the fixed lock member 2, thereby quickly disengaging the connection between the movable lock member 3 and the fixed lock member 2; moreover, when the end of the limiting member 4 is located between the movable lock member 3 and the lock member mounting block 1, the spring 301 will pull the movable lock member 3 to be pressed against the end of the limiting member 4, so that the end of the limiting member 4 will not be shaken and rotated during the material transmission process of the material transmission device, thereby maintaining the position of the limiting member 4.

[0059] Preferably, Fig.12 As shown, in this embodiment, a positioning hole 302 is provided at the end of the movable locking member 3 close to the limiting member 4 .

[0060] Among them, by installing a positioning component into the positioning hole 302 and pressing it against the surface of the inner shaft component connecting the limiting component 4 and the movable locking component 3, the limiting component 4 is prevented from rotating and moving out from between the fixed locking component 2 and the movable locking component 3 without human operation.

[0061] Preferably, Fig.13 and Fig.14 As shown in combination, in this embodiment, a fixing plate 9 connected to the end of the lock mounting block 1 close to the limiter 4 is provided with a second groove 7 whose width and depth are greater than the diameter of the limiter 4 and whose opening direction faces the limiter 4.

[0062] Among them, since the fixed plate 9 connected to one of the ends of the lock mounting block 1 can be moved under manual operation, and the position of the limit member 4 will affect the moving stroke of the fixed plate 9, the setting of the second groove 7 can increase the moving stroke of the fixed plate 9, increase the position adjustment range of the fixed plate 9, increase the spacing adjustment range between the clamping jaws on the fixed clamping jaw assembly 8 and the clamping jaws opposite to the direction of the clamped material, and the adaptable range of the size and shape of the clamped material is also expanded.

[0063] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A jaw spacing adjustment structure, which is arranged in a material conveying device with at least two jaw assemblies, a fixed plate 1 that can be moved to fix the jaw assemblies, and a driving source that drives the fixed plate 2 to move all the jaw assemblies, characterized in that: include: A lock mounting block, both ends of which are respectively fixedly connected to two different fixing plates, and the lock mounting block is provided with a matching groove; A fixed lock, arranged on the surface of the second fixing plate close to the lock installation block; A movable lock, one end of which is connected to the lock mounting block via a shaft-like component, and the movable lock is rotated to the fixed lock side by using the end connected to the lock mounting block shaft as a rotation center, and is connected to the fixed lock in a direction parallel to and perpendicular to the material transmission direction; A limit piece, the center of which is connected to the other end of the movable lock piece by inserting a shaft-like component. By rotating the limit piece, the end of the limit piece enters or moves out of the matching groove between the movable lock piece and the wall surface of the lock piece mounting block, thereby limiting the rotational movement of the movable lock piece.

2. A jaw spacing adjustment structure according to claim 1, characterized in that: The proximal end surfaces of the movable locking member and the fixed locking member are both provided with a row of engaging teeth, and the movable locking member and the fixed locking member are connected by meshing the engaging teeth of the two members.

3. The jaw spacing adjustment structure according to claim 1, characterized in that: One end of the limit member is a raised portion protruding from the portion of the limit member into which the shaft component is inserted, and the position of the raised portion after entering the matching groove is located between the movable lock and the lock mounting block, and the port width of the matching groove close to the limit member side is greater than the width of the portion of the matching groove away from the limit member side.

4. The jaw spacing adjustment structure according to claim 3, characterized in that: The other end of the limiting member is a handle, and the diameter of the handle is larger than the diameter of the portion of the limiting member that is inserted into the shaft component.

5. The jaw spacing adjustment structure according to claim 3, characterized in that: There is a gap between the port wall surface of the matching groove close to the limiting member side and the rotation range of the protruding portion.

6. The jaw spacing adjustment structure according to claim 1, characterized in that: The end surface of the movable lock piece close to the lock piece installation block is fixedly connected with a spring, and the other end of the spring is fixedly connected to the wall surface of the lock piece installation block in the matching groove.

7. The jaw spacing adjustment structure according to claim 1, characterized in that: The end of the movable locking member close to the limiting member is provided with a positioning hole.

8. The jaw spacing adjustment structure according to claim 1, characterized in that: A fixing plate connected to the end of the lock installation block close to the limiting member is provided with a second groove whose width and depth are both greater than the diameter of the limiting member and whose opening direction faces the limiting member.

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