A core-drawing fixture

Abstract

The application relates to the field of coiled material processing, and discloses a core-pulling clamp which comprises a clamp main body, an upper pressing block and a lower pressing block, the upper pressing block and the lower pressing block are arranged on the clamp main body, the upper pressing block and the lower pressing block are relatively moved along the vertical direction, and a pressing position is formed between the upper pressing block and the lower pressing block; and an exhaust seat is arranged on the clamp main body and is provided with an exhaust pin which is arranged towards the pressing position. The core-pulling clamp is provided with the upper pressing block and the lower pressing block to clamp the air expansion shaft, and is provided with the exhaust pin to abut against the exhaust valve of the air expansion shaft when the air expansion shaft is pushed, so that the air expansion shaft is in the unclamped state and is detached from the workpiece. The core-pulling clamp can conveniently realize the unloading and blanking of the air expansion shaft.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of coiled material processing, in particular to a core-pulling clamp. BACKGROUND

[0002] In the automatic production line of coiled material, the coiled material usually needs to be equipped with a reel to fix the coiled material when winding or unwinding. One type of reel used is an air inflation shaft. The air inflation shaft is a type of reel that has an actuator that can extend outward on the circumference after being inflated. In the state of fixing the coiled material by the air inflation shaft, the actuator is in the state of extending outward. When it is necessary to unload the air inflation shaft, the current method is to first use an exhaust pin to exhaust the air inflation shaft, and then pull out the air inflation shaft through a mechanical claw. The efficiency is not high, and there is still room for improvement. SUMMARY

[0003] The present application aims to at least solve one of the technical problems existing in the prior art.

[0004] The present application provides a core-pulling clamp, comprising:

[0005] a clamp body;

[0006] an upper pressing block and a lower pressing block, both of which are arranged on the clamp body, and the upper pressing block and the lower pressing block move relative to each other in the vertical direction, and a pressing position is formed between the upper pressing block and the lower pressing block;

[0007] an exhaust seat, which is provided with an exhaust pin, and the exhaust pin is arranged towards the pressing position.

[0008] The core-pulling clamp of the present application is configured to clamp the air inflation shaft by the upper pressing block and the lower pressing block, and is equipped with an exhaust pin to abut against the exhaust valve of the air inflation shaft when the air inflation shaft is pushed, so that the air inflation shaft exits the clamped state and is detached from the workpiece. The core-pulling clamp can conveniently unload the air inflation shaft and perform blanking.

[0009] As some sub-solutions of the above technical solutions, the core-pulling clamp further comprises a first lifting driver, which is arranged on the clamp body and is drivingly connected with the upper pressing block or the lower pressing block to drive the upper pressing block and the lower pressing block to move closer to or away from each other.

[0010] As some sub-solutions of the above technical solutions, the core-pulling clamp further comprises a first lifting guide rail, and the upper pressing block slides along the first lifting guide rail.

[0011] As some sub-solutions of the above technical solutions, the lower end of the upper pressing block is provided with a first groove.

[0012] As some sub-schemes of the above technical solutions, the upper pressing block is provided with an upper shaft head positioning block adjacent to one end of the exhaust pin, and the upper shaft head positioning block extends towards the lower pressing block.

[0013] As some sub-schemes of the above technical solutions, the core-pulling clamp further comprises an elastic component, which is arranged on the clamp body and provides elastic force for the exhaust pin to point to the pressing position.

[0014] As some sub-schemes of the above technical solutions, the elastic component comprises a ejector spring, the exhaust seat is provided with an ejector sliding hole leading to the pressing position, the exhaust pin slides along the ejector sliding hole, the ejector spring is arranged in the ejector sliding hole, the ejector spring abuts against the exhaust pin, and the ejector spring provides elastic force for the exhaust pin to point to the pressing position.

[0015] As some sub-schemes of the above technical solutions, the elastic component further comprises an elastic force adjusting structure, which is used for adjusting the elastic force of the ejector spring on the exhaust pin.

[0016] As some sub-schemes of the above technical solutions, the elastic force adjusting structure comprises a first adjusting pin, a baffle and an adjusting sleeve, the exhaust seat is further provided with a first adjusting hole, one end of the first adjusting hole is in communication with the ejector sliding hole, and the other end leads to the outside, the baffle is arranged on the exhaust seat, and the baffle is located between the exhaust pin and the pressing position to limit the exhaust pin from coming out of the ejector sliding hole, the first adjusting pin is in threaded connection with the first adjusting hole, and a tail portion of the first adjusting pin abuts against the adjusting sleeve.

[0017] As some sub-schemes of the above technical solutions, the first lifting driver is a pneumatic cylinder.

[0018] Additional aspects and advantages of the application will be set forth in part in the description which follows, and in part will become apparent to those skilled in the art upon examination of the following and / or can be learned by practice of the application. BRIEF DESCRIPTION OF DRAWINGS

[0019] The above and / or additional aspects and advantages of the application will become apparent and be readily understood by considering the following detailed description, from which the above-mentioned aspects and advantages will become apparent, and by practicing the application, as exemplified in the following detailed description.

[0020] Figure 1 is a perspective view of an embodiment of a core-pulling clamp Figure 1 ;

[0021] Figure 2 is a left view of an embodiment of a core-pulling clamp

[0022] Figure 3 is Figure 2 a sectional view of A in FIG. 4;

[0023] Figure 4 perspective view of an embodiment of a core pulling fixture Figure 2 .

[0024] In the drawings: 11 - upper fixed plate; 12 - first vertical plate; 13 - second vertical plate; 20 - upper pressing block; 21 - connecting groove; 22 - first recess; 23 - shaft head positioning block; 24 - upper pressing stop block; 30 - lower pressing block; 31 - second recess; 40 - exhaust seat; 401 - first adjusting hole; 41 - top pin spring; 42 - first adjusting pin; 43 - stop piece; 44 - adjusting sleeve; 45 - exhaust pin; 50 - first lifting driver; 60 - first lifting guide rail; 61 - connecting block. DETAILED DESCRIPTION

[0025] Embodiments of the present application are described below in detail, examples of which are shown in the drawings, wherein the same or similar notations represent the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the drawings are exemplary, only for explaining the present application, and cannot be understood as a limitation of the present application.

[0026] In the description of the present application, it is understood that the orientation description, such as the orientation or position relationship indicated by up, down, front, back, left, right, etc. is based on the orientation or position relationship shown in the drawings, only for the convenience of describing the present application and simplifying the description, and is not intended to indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation of the present application.

[0027] In the description of the present application, the meaning of several is indefinite quantity, the meaning of multiple is two or more, greater than, less than, more than, etc. is understood as not including the number, above, below, etc. is understood as including the number. If it is described as first, second, only for the purpose of distinguishing technical features, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of indicated technical features or implicitly indicating the order of indicated technical features. And / or appearing throughout the text means three parallel schemes, for example, A and / or B means the scheme satisfied by A, the scheme satisfied by B, or the scheme satisfied by A and B at the same time.

[0028] In the description of the present application, if a short sentence contains multiple parallel features, the attributive in the short sentence limits the closest feature, for example: B, C and D connected E on A, which means that B is arranged on A, E is connected with D, and C is not limited; but for attributive such as "interval arrangement", "ring arrangement" and the like, it does not belong to this category. If the attributive is preceded by the word "all", it means that all the features in the short sentence are limited, for example, B, C and D are arranged on A, which means that B, C and D are arranged on A. The omitted subject is the subject of the previous sentence, that is, A has B, including C, which means that A has B and A includes C.

[0029] In the description of the present application, unless otherwise explicitly limited, the words such as arrangement, installation, connection and the like should be understood in a broad sense, and the person skilled in the art can reasonably determine the specific meaning of the above words in the present application in combination with the specific content of the technical solution.

[0030] The following will be combined Figures 1 to 4 The embodiments of the present application are described.

[0031] The present embodiment relates to a core-pulling clamp, comprising:

[0032] A clamp body;

[0033] An upper pressing block 20 and a lower pressing block 30, both arranged on the clamp body, vertically relative to each other, and forming a pressing position therebetween;

[0034] An exhaust seat 40, provided with an exhaust pin 45, which is arranged towards the pressing position.

[0035] The core-pulling clamp is configured with an upper pressing block 20 and a lower pressing block 30 to clamp the gas expansion shaft, and is equipped with an exhaust pin 45 to abut against the exhaust valve of the gas expansion shaft when the gas expansion shaft is pushed, so that the gas expansion shaft exits the clamping state and is detached from the workpiece. The core-pulling clamp can conveniently realize the unloading and blanking of the gas expansion shaft.

[0036] The relative movement of the upper pressing block 20 and the lower pressing block 30 can be achieved in the following manner. Further, the core-pulling clamp further comprises a first lifting driver 50 arranged on the clamp body and drivingly connected with the upper pressing block 20 or the lower pressing block 30 to drive the upper pressing block 20 and the lower pressing block 30 to move towards or away from each other. The first lifting driver is configured to automatically realize the vertical relative movement of the upper pressing block 20 and the lower pressing block 30 driven by the first lifting driver 50. In the embodiment, the first lifting driver 50 is a pneumatic cylinder, which has the advantages of low cost and clean energy. In other embodiments, the first lifting driver 50 can also be an electric push rod, a hydraulic push rod, a linear module, a straight line module, a screw mechanism, etc., which mainly provides a linear motion output end.

[0037] In order to improve the stability of the movement of the upper pressing block 20 and the lower pressing block 30, further, the core-pulling clamp further comprises a first lifting guide rail 60 along which the upper pressing block 20 slides. Specifically, in the embodiment, the first lifting driver 50 is drivingly connected with the upper pressing block 20, and the upper pressing block 20 is configured with the first lifting guide rail 60 for lifting guidance, so that the upper pressing block 20 is more stable during lifting movement and more stable when clamping the inflatable shaft. In the embodiment, the output end of the first lifting driver 50 is connected with the upper pressing block 20 through a "T" connection structure. Specifically, the "T" connection structure comprises a "T"-shaped connecting groove 21 formed in the upper pressing block 20 and extending in the left-right direction, and a "T"-shaped connecting block 61 connected with the output end of the first lifting driver 50 and slidingly connected in the connecting groove 21. The connecting block 61 slidingly connected in the "T"-shaped groove is driven by the first lifting driver 50 during lifting. The first lifting driver 50 is drivingly connected with the upper pressing block 20 through the sliding connection structure of the "T"-shaped groove and the connecting block 61. Compared with the conventional mode in the prior art, i.e., the output end of the first lifting driver 50 is directly fixed with the upper pressing block 20, the advantage of the present scheme lies in that the assembly error existing between the first lifting driver 50 and the upper pressing block 20 in the left-right direction can be compensated by the sliding connection between the "T"-shaped groove and the connecting block 61, greatly improving the flexibility of assembly. In the present scheme, the upper pressing block 20 is also slidingly connected with the first lifting guide rail 60, which realizes the positioning of the upper pressing block 20 in the left-right direction, and together with the "T" connection structure, realizes the positioning of the upper pressing block 20 and provides great flexibility for the installation of the upper pressing block 20.

[0038] In order to improve the stability of the clamping air inflation shaft, further, the lower end of the upper pressing block 20 is provided with a first groove 22. In this embodiment, the upper end of the lower pressing block 30 is provided with a second groove 31, and the first groove 22 is opposite to the second groove 31. When the air inflation shaft is clamped, the first groove 22 and the second groove 31 are arranged to improve the contact area between the upper pressing block 20 and the lower pressing block 30 and the air inflation shaft, thereby more stably clamping the air inflation shaft.

[0039] In order to improve the positioning accuracy of the exhaust pin 45, further, the upper pressing block 20 is provided with an upper shaft head positioning block 23 adjacent to one end of the exhaust pin 45, and the upper shaft head positioning block 23 extends towards the lower pressing block 30. The structure of the air inflation shaft is a stepped shaft, and the exhaust valve is arranged on the shaft head with a smaller diameter at both ends of the air inflation shaft. The shaft head positioning block 23 arranged on the upper pressing block 20 can directly position the shaft head of the air inflation shaft, thereby improving the positioning accuracy between the exhaust pin 45 and the exhaust valve and stabilizing the air inflation shaft exhaust unloading.

[0040] In order to more fully open the exhaust valve, further, the core-pulling clamp further comprises a spring assembly, the spring assembly is arranged on the clamp body, and the spring assembly provides the exhaust pin 45 with a spring force directed to the pressing position. The spring assembly provides the exhaust pin 45 with a spring force, and the exhaust pin 45 can ensure that the exhaust valve is fully pushed under the compression of the spring when pushing the exhaust valve, thereby fully opening the exhaust valve and improving the efficiency of exhaust.

[0041] Further, the spring assembly comprises a ejector spring 41, the exhaust seat 40 is provided with an ejector sliding hole leading to the pressing position, the exhaust pin 45 slides along the ejector sliding hole, the ejector spring 41 is arranged in the ejector sliding hole, the ejector spring 41 abuts against the exhaust pin 45, and the ejector spring 41 provides the exhaust pin 45 with a spring force directed to the pressing position. Through the above configuration, the ejector spring 41 conveniently provides the exhaust pin 45 with a spring force.

[0042] In order to adapt the spring force of the ejector spring 41 to different force exhaust valves, further, the spring assembly further comprises a spring force adjusting structure, and the spring force adjusting structure is used for adjusting the spring force of the ejector spring 41 to the exhaust pin 45. By adjusting the spring force of the ejector spring 41 through the spring force adjusting structure, the exhaust pin 45 can be adjusted to adapt to different spring force exhaust valves, thereby improving the adaptability of the spring assembly.

[0043] The elastic force adjusting structure can be realized by a telescopic rod or other device having a straight line motion output end, such as a pneumatic push rod, a hydraulic push rod, etc., directly abutting against the ejector pin spring 41 to change the pressure of the ejector pin spring 41 on the exhaust pin 45. In the embodiment, further, the elastic force adjusting structure comprises a first adjusting pin 42, a baffle 43 and an adjusting sleeve 44, the exhaust seat 40 is further provided with a first adjusting hole 401, one end of the first adjusting hole 401 is in communication with the ejector pin sliding hole, and the other end is open to the outside, the baffle 43 is arranged on the exhaust seat 40, and the baffle 43 is located between the exhaust pin 45 and the pressing position to limit the exhaust pin 45 from coming out of the ejector pin sliding hole, the first adjusting pin 42 is threadedly connected with the first adjusting hole 401, and the tail of the first adjusting pin 42 abuts against the adjusting sleeve 44. The elastic force adjusting structure in the embodiment finally changes the elastic force of the ejector pin spring 41 through the threaded connection of the first adjusting pin 42 and the first adjusting hole 401, and has the advantages of high adjustment accuracy and self-locking after adjustment. Specifically, the tail of the first adjusting pin 42, the adjusting sleeve 44, the ejector pin spring 41 and the exhaust pin 45 abut against each other in sequence, when the first adjusting pin 42 is rotated to extend or retract, the position of the adjusting sleeve 44 in the ejector pin sliding hole changes, the compression amount of the ejector pin spring 41 changes, and thus the elastic force of the ejector pin spring 41 on the exhaust pin 45 changes. The baffle 43 is arranged to limit the exhaust pin 45 from coming out of the ejector pin sliding hole, so as to ensure that the exhaust pin 45 will not come out accidentally. The baffle 43 is in the form of a ring structure in the embodiment.

[0044] In the embodiment, the clamp body is in the form of a frame structure, and comprises an upper fixed plate 11, a first vertical plate 12 and a second vertical plate 13. The upper fixed plate 11 is located between the first vertical plate 12 and the second vertical plate 13, and the first vertical plate 12 and the second vertical plate 13 are detachably connected with the front part and the rear part of the upper fixed plate 11, respectively. In the embodiment, the detachable connection is realized by screw connection. The lower pressing block 30 is located below the upper fixed plate 11 and between the first vertical plate 12 and the second vertical plate 13. The front part and the rear part of the lower pressing block 30 are also detachably connected with the first vertical plate 12 and the second vertical plate 13, respectively. In the embodiment, the detachable connection is realized by screw connection. In the embodiment, the upper fixed plate 11, the first vertical plate 12, the second vertical plate 13 and the lower pressing block 30 are connected to form a quadrangular frame-like structure, and each component is detachably connected. By using such a scheme, on the one hand, the assembly of the clamp body is very flexible, and each component can be flexibly assembled at each position of the production line. On the other hand, the lower pressing block 30 and the clamp body form a quadrangular frame-like structure, which fully utilizes the lower pressing block 30. The lower pressing block 30 plays the roles of positioning and clamping the inflatable shaft, and also plays the role of strengthening the strength of the clamp body. The structure is simple and efficient. In the embodiment, two first lifting guides 60 are arranged on the first vertical plate 12 and the second vertical plate 13, respectively.

[0045] In addition, the core-pulling clamp further comprises an upper pressing block 24, the lower end of the upper pressing block 24 extending below the upper pressing block 20. The upper pressing block 24 is detachably connected to the upper pressing block 20, and the upper pressing block 24 is located on the side of the upper pressing block 20 away from the exhaust top pin. Specifically, the upper pressing block 24 is located on the left side of the upper pressing block 20. By means of the upper pressing block 24, when the core-pulling clamp needs to drive the air inflation shaft to move axially, the upper pressing block 24 can be clamped with the circumferential boss on the air inflation shaft, thereby pushing the air inflation shaft to move axially. Compared with the friction transmission mode of driving the air inflation shaft to move by relying on the upper pressing block 20 and the lower pressing block 30 to clamp the air inflation shaft, the air inflation shaft can be more reliably driven to move.

[0046] The preferred embodiments of the present application are specifically described above, but the present application is not limited to the described embodiments, and those skilled in the art can make various equivalent modifications or replacements without departing from the spirit of the present application. These equivalent modifications or replacements are all included in the scope defined by the claims of the present application.

Claims

1. A core-drawing fixture, characterized by: The core-pulling clamp comprises: a clamp body; an upper pressing block (20) and a lower pressing block (30), which are arranged on the clamp body, and are vertically moved relative to each other, and a pressing position is formed between the upper pressing block (20) and the lower pressing block (30); an exhaust seat (40) is provided with an exhaust pin (45), which is arranged towards the pressing position; the core-pulling clamp further comprises a first lifting driver (50), which is arranged on the clamp body, and is drivingly connected with the upper pressing block (20) to drive the upper pressing block (20) and the lower pressing block (30) to move towards or away from each other; the output end of the first lifting driver (50) is connected with the upper pressing block (20) through a "T" connecting structure, which comprises a "T"-shaped connecting groove (21) formed on the upper pressing block (20) and extending along the left-right direction, and a "T"-shaped connecting block (61) connected with the output end of the first lifting driver (50) and slidingly connected in the connecting groove (21); the core-pulling clamp further comprises a spring assembly, which is arranged on the clamp body, and provides the exhaust pin (45) with a spring force directed to the pressing position; the spring assembly comprises a top pin spring (41), the exhaust seat (40) is provided with a top pin sliding hole leading to the pressing position, the exhaust pin (45) slides along the top pin sliding hole, the top pin spring (41) is arranged in the top pin sliding hole, the top pin spring (41) abuts against the exhaust pin (45), and the top pin spring (41) provides the exhaust pin (45) with a spring force directed to the pressing position; the spring assembly further comprises a spring adjusting structure, which is used for adjusting the spring force of the top pin spring (41) on the exhaust pin (45) to enable the exhaust pin (45) to be adjusted to adapt to exhaust valves with different spring forces; the spring adjusting structure comprises a first adjusting peg (42), a baffle (43) and an adjusting sleeve (44), the exhaust seat (40) is further provided with a first adjusting hole (401), one end of the first adjusting hole (401) is communicated with the top pin sliding hole, and the other end leads to the outside, the baffle (43) is arranged on the exhaust seat (40), and the baffle (43) is located between the exhaust pin (45) and the pressing position to limit the exhaust pin (45) from coming out of the top pin sliding hole, the first adjusting peg (42) is threadedly connected with the first adjusting hole (401), the tail of the first adjusting peg (42) abuts against the adjusting sleeve (44), and the adjusting sleeve (44), the top pin spring (41) and the exhaust pin (45) abut against each other in sequence.

2. A core-drawing fixture according to claim 1, wherein: the core-pulling clamp further comprises a first lifting guide rail (60), and the upper pressing block (20) slides along the first lifting guide rail (60).

3. A core-drawing fixture according to claim 1, wherein: the lower end of the upper pressing block (20) is provided with a first recess (22).

4. A core-drawing fixture according to claim 1, wherein: The upper pressing block (20) is provided with an upper shaft head positioning block (23) adjacent to one end of the exhaust pin (45), which extends towards the lower pressing block (30).

5. A core-drawing fixture according to claim 1, wherein: The first lifting driver (50) is a gas cylinder.

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