Fixture for punching press roll

Abstract

The utility model discloses a press roll tapping clamp which comprises a base, a clamping assembly is arranged in the base, the clamping assembly comprises two circular plates, the two circular plates are oppositely arranged in the base, a plurality of limiting rods are oppositely and fixedly arranged on one side of each circular plate, the distance between every two adjacent limiting rods is equal, and the limiting rods are fixedly arranged on the base. Two supporting plates are oppositely arranged on the peripheral side of the circular plate, and each supporting plate makes contact with the inner wall of the base. When the improved clamp for punching the press roll is used, the driving mechanism pushes the circular plate towards the press roll, so that the limiting roll is pushed into a hole of the press roll when the circular plate is attached to the press roll, displacement cannot occur between the circular plate and the press roll due to the fact that the limiting roll abuts against the inner wall of the hole of the press roll, and the phenomenon that the press roll is damaged when the press roll rotates is avoided. The press roll slides relative to the circular plate, so that the adjustment angle of the press roll deviates, and the tapping operation of the press roll is influenced.

Description

Technical Field

[0001] The utility model relates to the technical field of opening fixtures for press rolls, and particularly relates to a fixture for opening holes in press rolls. Background Art

[0002] The press roll is an important equipment component in the industrial field, and has wide applications especially in industries such as papermaking, textile, chemical industry, and metallurgy. Among them, the papermaking press roll is a key component in papermaking machinery, and is used to press the paper sheet during the papermaking process to remove excess moisture and increase the density and flatness of the paper sheet.

[0003] The existing press roll fixtures generally clamp and limit the press roll through two clamping plates, and support the press roll through a limiting roll. The contact area between the clamping plate and the press roll is small, so the generated frictional force is small. However, during the hole-opening process of the press roll, it is often necessary to repeatedly adjust the angle of the press roll. Due to the large weight of the press roll and the high inertial force during rotation, when the press roll stops rotating, the press roll may have a certain angular deviation due to inertia, affecting the hole-opening operation of the press roll. Summary of the Utility Model

[0004] The purpose of the utility model is to provide a fixture for opening holes in a press roll, so as to solve the problems raised in the above background art.

[0005] To achieve the above purpose, the utility model provides the following technical solution: A fixture for opening holes in a press roll, including a base. A clamping assembly is arranged inside the base. The clamping assembly includes two circular plates. The two circular plates are relatively arranged inside the base. A number of limiting rods are relatively and fixedly installed on one side of each circular plate, and the distance between adjacent two limiting rods is equal. Two supporting plates are relatively arranged on the outer peripheral side of the circular plate, and each supporting plate is in contact with the inner wall of the base. A connecting mechanism is arranged between the circular plate and the corresponding two supporting plates. A positioning mechanism is jointly arranged on the inner side of the supporting plate and the outer peripheral wall of the circular plate. A driving mechanism is arranged on the other side of the supporting plate. A guiding mechanism is arranged between the supporting plate and the base.

[0006] Preferably, two supporting rolls are relatively arranged on the bottom sides of the two circular plates, and both ends of the supporting rolls are inserted into the plate wall of the base and rotatably connected to the base.

[0007] Preferably, the driving mechanism includes a motor. The motor is arranged on the other side of the corresponding supporting plate, and the driving end of the motor is fixedly connected to the corresponding circular plate. The motor is fixedly connected to the corresponding two supporting plates through a connecting plate. A number of hydraulic rods are relatively and fixedly installed on both sides of the base, and the inner rods of each hydraulic rod slidably penetrate through the plate wall of the base and are fixedly connected to the corresponding supporting plate.

[0008] Preferably, the guiding mechanism includes a limiting block fixedly installed on the side wall of the corresponding support plate. A first ball is rotatably installed on the bottom side of the support plate. A guiding groove is formed on the opening wall of the base at the position corresponding to the first ball, and the bottom end of the first ball is inserted into the corresponding guiding groove and contacts the inner wall of the corresponding guiding groove.

[0009] Preferably, the connecting mechanism includes a plurality of second balls rotatably installed on the inner wall of the corresponding support plate. Two annular grooves are oppositely formed on the outer peripheral wall of the circular plate, and one end of the second ball close to the corresponding annular groove is inserted into the corresponding annular groove and contacts the inner wall of the corresponding annular groove.

[0010] Preferably, the positioning mechanism includes a third ball. A plurality of positioning grooves are formed in a circumferential array at the middle position of the outer peripheral wall of the circular plate, and each positioning groove is located between the corresponding two annular grooves. An air storage groove is formed in the support plate at the position corresponding to the positioning groove. A piston plate is slidably installed in the air storage groove. The third ball is rotatably installed in the corresponding piston plate, and one end of the third ball close to the corresponding positioning groove is inserted into the corresponding positioning groove and contacts the inner wall of the corresponding positioning groove.

[0011] Preferably, a one-way valve is provided on the side wall of the support plate, and the exhaust end of the one-way valve is inserted into the corresponding air storage groove and fixedly connected to the corresponding support plate. The one-way valve is located above the limiting block.

[0012] The utility model at least has the following beneficial effects:

[0013] 1. When the improved jig for punching holes in the pressing roller is in use, the driving mechanism pushes the circular plate towards the pressing roller, so that when the circular plate is in contact with the pressing roller, the limiting roller is pushed into the hole of the pressing roller. At this time, due to the mutual contact between the limiting roller and the inner wall of the hole of the pressing roller, there will be no displacement between the circular plate and the pressing roller, avoiding the sliding between the pressing roller and the circular plate when the pressing roller rotates, resulting in a deviation in the angle adjustment of the pressing roller and affecting the hole punching operation of the pressing roller;

[0014] 2. According to the above, when the driving mechanism drives the circular plate to rotate, the pressing roller can be driven to rotate synchronously to adjust the angle of the pressing roller. When the pressing roller stops rotating, the positioning mechanism timely limits and constrains the circular plate, thus avoiding the deviation in the angle adjustment of the pressing roller caused by the rotation of the pressing roller and the circular plate following the pressing roller when the pressing roller rotates, and affecting the hole punching operation of the pressing roller. Description of the Drawings

[0015] To more clearly illustrate the technical solutions of the embodiments of the present utility model, the following will briefly introduce the attached drawings required for the description of the embodiments. Obviously, the attached drawings in the following description are some embodiments of the present utility model. For those of ordinary skill in the art, without creative efforts, other attached drawings can also be obtained based on these drawings.

[0016] Figure 1 Overall schematic diagram of the present utility model;

[0017] Figure 2 Overall structural schematic diagram of the circular plate, support plate and hydraulic rod of the present utility model;

[0018] Figure 3 Overall structural schematic diagram of the circular plate of the present utility model;

[0019] Figure 4 Top view of the internal structures of the support plate and circular plate of the present utility model;

[0020] Figure 5 For the present utility model Figure 4 Enlarged view of the structure at A in

[0021] In the figure: 1, base; 2, clamping assembly; 21, circular plate; 22, limiting rod; 23, support plate; 3, driving mechanism; 31, motor; 32, hydraulic rod; 4, guiding mechanism; 41, limiting block; 42, first ball; 43, guiding groove; 5, connecting mechanism; 51, second ball; 52, annular groove; 6, positioning mechanism; 61, positioning groove; 62, gas storage tank; 63, piston plate; 64, third ball; 65, one-way valve; 7, support roller. Specific embodiments

[0022] In order to make the technical solutions and advantages of the present utility model clearer and more understandable, the following will further describe the present utility model in detail in conjunction with the attached drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present utility model and are not used to limit the present utility model.

[0023] The present utility model provides a technical solution: Refer to Figure 1 - Figure 5, A fixture for punching holes in a pressing roller disclosed by the present utility model includes a base 1. A clamping assembly 2 is arranged inside the base 1. The clamping assembly 2 includes two circular plates 21. The two circular plates 21 are oppositely arranged inside the base 1. A number of limiting rods 22 are relatively fixedly installed on one side of the circular plate 21, and the distance between adjacent two limiting rods 22 is equal. Two support plates 23 are oppositely arranged on the outer peripheral side of the circular plate 21, and each support plate 23 is in contact with the inner wall of the base 1. A connecting mechanism 5 is arranged between the circular plate 21 and the corresponding two support plates 23. A positioning mechanism 6 is jointly arranged on the inner side of the support plate 23 and the outer peripheral wall of the circular plate 21. A driving mechanism 3 is arranged on the other side of the support plate 23. A guiding mechanism 4 is arranged between the support plate 23 and the base 1.

[0024] In this embodiment, when the improved fixture for punching holes in a pressing roller is in use, the operator places the pressing roller inside the base 1. The driving mechanism 3 pushes the support plate 23 towards the pressing roller, and drives the circular plate 21 to move synchronously through the connecting mechanism 5. And due to the constraint and limitation of the guiding mechanism 4 on the support plate 23, the circular plate 21 moves along a linear trajectory. During the process of the circular plate 21 fitting with the pressing roller, the limiting rollers can be synchronously pushed into the holes of the pressing roller. At this time, due to the mutual contact between the limiting rollers and the inner wall of the holes of the pressing roller, the positions of the circular plate 21 and the pressing roller are kept stable.

[0025] When adjusting the angle of the pressing roller, the driving mechanism 3 drives the circular plate 21 to rotate. At the same time, the connecting interface can greatly reduce the resistance received when the circular plate 21 rotates. And due to the mutual contact between the limiting rods 22 and the inner wall of the holes of the pressing roller, the rotating circular plate 21 drives the pressing roller to rotate synchronously. When the pressing roller stops rotating, the positioning mechanism 6 timely conducts the limiting and constraint of the circular plate 21.

[0026] In a further preferred embodiment of the present utility model, as Figure 1 shown, two support rollers 7 are oppositely arranged on the bottom sides of the two circular plates 21, and both ends of the support rollers 7 are inserted into the plate wall of the base 1 and rotatably connected to the base 1.

[0027] In this embodiment, when the above operator places the pressing roller inside the base 1, due to the support of the support rollers 7 for the pressing roller, the pressing roller is stably placed inside the base 1. And through the rotation of the support rollers, the operator can easily push the pressing roller to rotate, so as to adjust the angle of the pressing roller, so that the holes at both ends of the pressing roller are aligned with the limiting rods 22. The arrangement of the driving rollers can greatly avoid the resistance received when the pressing roller rotates while stably supporting the pressing roller.

[0028] In a further preferred embodiment of the present utility model, as Figure 1 and Figure 2As shown, the driving mechanism 3 includes a motor 31. The motor 31 is arranged on the other side of the corresponding support plate 23, and the driving end of the motor 31 is fixedly connected to the corresponding circular plate 21. The motor 31 is fixedly connected to the corresponding two support plates 23 through a connecting plate. On both sides of the base 1, a number of hydraulic rods 32 are relatively fixedly installed, and the inner rod of each hydraulic rod 32 slidably penetrates the plate wall of the base 1 and is fixedly connected to the corresponding support plate 23;

[0029] In this embodiment, when clamping and limiting the pressing roller, the hydraulic rod 32 stretches, pushes the support plate 23 towards the pressing roller, and drives the circular plate 21 to move synchronously through the connecting mechanism 5. If the pressing roller is not located in the middle position inside the base 1, due to the mutual contact between the circular plate 21 and the pressing roller, the pressing roller is automatically adjusted to the middle position inside the base 1, facilitating the feeding operation of the pressing roller.

[0030] In a further preferred embodiment of the present utility model, as Figure 1 and Figure 2 shown, the guiding mechanism 4 includes a limiting block 41. The limiting block 41 is fixedly installed on the side wall of the corresponding support plate 23. A first ball 42 is rotatably installed on the bottom side of the support plate 23. A guiding groove 43 is formed on the opening wall of the base 1 at the position corresponding to the first ball 42, and the bottom end of the first ball 42 is inserted into the corresponding guiding groove 43 and contacts the inner wall of the corresponding guiding groove 43;

[0031] In this embodiment, during the movement of the support plate 23, due to the mutual contact between the first ball 42 and the inner wall of the guiding groove 43 and thus the mutual contact between the support plate 23 and the inner wall of the base 1, the support plate 23 moves in a linear trajectory, preventing the support plate 23 from shifting in position during movement and affecting the limiting operation of the support plate 23 on the circular plate 21.

[0032] In a further preferred embodiment of the present utility model, as Figure 2 - Figure 5 shown, the connecting mechanism 5 includes a number of second balls 51. The second balls 51 are rotatably installed on the inner wall of the corresponding support plate 23. Two annular grooves 52 are relatively formed on the outer peripheral wall of the circular plate 21, and one end of the second ball 51 close to the corresponding annular groove 52 is inserted into the corresponding annular groove 52 and contacts the inner wall of the corresponding annular groove 52;

[0033] In this embodiment, when the hydraulic rod 32 pushes the support plate 23 to move, due to the mutual contact between the second ball 51 and the annular groove 52, the moving support plate 23 can drive the circular plate 21 to move synchronously, and the rotation of the second ball 51 located in the annular groove 52 can greatly offset the resistance received when the circular plate 21 rotates;

[0034] When adjusting the angle of the pressing roller, the motor 31 is started to drive the circular plate 21 to rotate between the two support plates 23. Due to the mutual contact between the limiting rod 22 and the inner wall of the hole of the pressing roller, the rotation of the support roller 7, and the rolling of the ball in the annular groove 52, the rotating circular plate 21 can synchronously drive the pressing roller to rotate synchronously.

[0035] In a further preferred embodiment of the present utility model, as Figure 4 and Figure 5 shown, the positioning mechanism 6 includes a third ball 64. A plurality of positioning grooves 61 are circumferentially arranged at the middle position of the outer peripheral wall of the circular plate 21, and each positioning groove 61 is located between two corresponding annular grooves 52. An air storage groove 62 is provided at the position corresponding to the positioning groove 61 in the support plate 23. A piston plate 63 is slidably installed in the air storage groove 62. The third ball 64 is rotatably installed in the corresponding piston plate 63, and one end of the third ball 64 close to the corresponding positioning groove 61 is inserted into the corresponding positioning groove 61 and contacts the inner wall of the corresponding positioning groove 61;

[0036] In this embodiment, when the above pressing roller rotates, due to the mutual contact between the third ball 64 and the inner wall of the positioning groove 61, as the third ball 64 rotates, the third ball 64 is extruded from the positioning groove 61 along the inner arc wall of the positioning groove 61, thereby automatically releasing the constrained and limited state of the circular plate 21. Subsequently, after the angle adjustment of the pressing roller is completed, the third ball 64 is exactly aligned with the next positioning groove, and due to the pushing of the gas in the air storage groove 62 on the piston plate 63, the third ball 64 automatically inserts into the positioning groove 61. At this time, due to the mutual contact between the third ball 64 and the inner wall of the positioning groove 61, the circular plate 21 and the pressing roller immediately stop rotating.

[0037] In a further preferred embodiment of the present utility model, as Figure 2 、 Figure 4 and Figure 5 shown, a one-way valve 65 is provided on the side wall of the support plate 23, and the exhaust end of the one-way valve 65 is inserted into the corresponding air storage groove 62 and fixedly connected to the corresponding support plate 23. The one-way valve 65 is located above the limit block 41;

[0038] In this embodiment, when the gas in the air storage groove 62 escapes and cannot provide the corresponding strength of pressure, the operator connects the intake end of the one-way valve 65 to the exhaust end of an external gas injection device through a pipeline, and then the corresponding amount of gas can be replenished into the air storage groove 62 from the one-way valve 65, so as to avoid the slow escape of the gas in the air storage groove 62 from affecting the use of the device.

[0039] Working principle: When using the fixture for opening holes in the improved pressing roller, the operator first places the pressing roller in the base 1. At this time, due to the support of the support roller 7 for the pressing roller, the pressing roller is stably placed in the base 1. Then the operator rotates the pressing roller so that the holes at both ends of the pressing roller are aligned with the limiting rods 22. Subsequently, the hydraulic rod 32 stretches and pushes the support plate 23 towards the pressing roller. And due to the mutual contact between the second ball 51 and the inner wall of the annular groove 52, the circular plate 21 moves synchronously towards the pressing roller. When the circular plate 21 contacts the pressing roller, if the pressing roller is not in the middle position in the base 1, then due to the mutual contact between the circular plate 21 and the pressing roller, the pressing roller is automatically adjusted to the middle position in the base 1. And during the process of the circular plate 21 clamping and limiting the pressing roller, the limiting rods 22 can be synchronously pushed into the holes of the pressing roller. At this time, due to the mutual contact between the limiting rods 22 and the inner wall of the pressing roller holes, the pressing roller and the circular plate 21 are stably connected together, and the pressing roller will not rotate between the two circular plates 21;

[0040] It should be noted that drilling mechanisms can be installed on the front and rear sides of the base 1. After the above-mentioned pressing roller is clamped and fixed, the outer peripheral wall of the pressing roller is drilled through the drilling mechanism;

[0041] It should be noted that during the movement of the above-mentioned support plate 23, due to the mutual contact between the first ball 42 and the inner wall of the guiding groove 43, the support plate 23 moves along a linear trajectory, and the support plate 23 is synchronously constrained and positioned, so that the second ball 51 is stably inserted into the annular groove 52;

[0042] When adjusting the angle of the pressing roller, the motor 31 starts to drive the circular plate 21 to rotate between the two support plates 23. And due to the mutual contact between the limiting rods 22 and the inner wall of the pressing roller holes and the rotation of the support roller 7, the motor 31 can easily drive the pressing roller to rotate together with the circular plate 21;

[0043] It should be noted that during the rotation of the above-mentioned circular plate 21, due to the mutual contact between the second ball 51 and the inner wall of the annular groove 52, the position of the circular plate 21 between the two support plates 23 remains unchanged;

[0044] When the above-mentioned circular plate 21 rotates, due to the mutual contact between the third ball 64 and the inner wall of the positioning groove 61, as the third ball 64 rotates, the third ball 64 is extruded from the positioning groove 61 along the inner arc wall of the positioning groove 61, thereby automatically releasing the constrained limit state of the circular plate 21. Subsequently, after the angle adjustment of the pressing roller is completed, the third ball 64 is exactly aligned with the next positioning operation. And due to the gas in the air storage tank 62 pushing the piston plate 63, the third ball 64 is automatically inserted into the positioning groove 61. At this time, due to the mutual contact between the third ball 64 and the inner wall of the positioning groove 61, the circular plate 21 and the pressing roller immediately stop rotating;

[0045] When the gas escaping in the gas storage tank 62 cannot provide the corresponding intensity of pressure, the operator connects the air inlet end of the one-way valve 65 to the exhaust end of the external gas injection device through a pipeline, and the corresponding amount of gas can be supplemented into the gas storage tank 62 from the one-way valve 65.

[0046] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited by the above embodiments. What is described in the above embodiments and the specification is only the principle of the present invention. Without departing from the spirit and scope of the present invention, the present invention will have various changes and improvements, and these changes and improvements all fall within the scope of the present invention claimed. The scope of protection required by the present invention is defined by the appended claims and their equivalents.

Claims

1. A clamp for punching holes in a press roll, comprising a base (1), characterized in that: A clamping assembly (2) is provided in the base (1), and the clamping assembly (2) comprises two circular plates (21). The two circular plates (21) are arranged in the base (1) relative to each other, a plurality of limit rods (22) are fixedly mounted on one side of the circular plate (21), and the spacing between two adjacent limit rods (22) is equal, two support plates (23) are provided on the outer peripheral side of the circular plate (21), and each support plate (23) is in contact with the inner wall of the base (1), a connecting mechanism (5) is provided between the circular plate (21) and the two corresponding support plates (23), a positioning mechanism (6) is provided inside the support plate (23) and on the outer peripheral wall of the circular plate (21), a driving mechanism (3) is provided on the other side of the support plate (23), and a guiding mechanism (4) is provided between the support plate (23) and the base (1).

2. A clamp for punching holes in a press roll according to claim 1, characterized in that: Two supporting rollers (7) are arranged opposite to each other on the bottom sides of the two circular plates (21), and both ends of the supporting rollers (7) are inserted into the plate wall of the base (1) and are rotatably connected to the base (1).

3. A clamp for punching holes in a press roll according to claim 2, characterized in that: The driving mechanism (3) comprises a motor (31), the motor (31) being arranged on the other side of the corresponding support plate (23), and the driving end of the motor (31) being fixedly connected to the corresponding circular plate (21), the motor (31) being fixedly connected to the two corresponding support plates (23) via a connecting plate, and a plurality of hydraulic rods (32) being relatively fixedly mounted on both sides of the base (1), and the inner rod of each hydraulic rod (32) slidingly passes through the plate wall of the base (1) and is fixedly connected to the corresponding support plate (23).

4. A clamp for punching holes in a press roll according to claim 3, characterized in that: The guide mechanism (4) comprises a limit block (41), the limit block (41) being fixedly mounted on a side wall of a corresponding support plate (23), a first ball (42) being rotatably mounted on a bottom side of the support plate (23), a guide groove (43) being provided on an opening wall of the base (1) at a position corresponding to the first ball (42), and a bottom end of the first ball (42) being inserted into the corresponding guide groove (43) and in contact with an inner wall of the corresponding guide groove (43).

5. A clamp for punching holes in a press roll according to claim 4, characterized in that: The connecting mechanism (5) comprises a plurality of second balls (51), the second balls (51) being rotatably mounted on the inner wall of the corresponding support plate (23), two annular grooves (52) being arranged opposite to each other on the outer peripheral wall of the circular plate (21), and one end of the second ball (51) close to the corresponding annular groove (52) being inserted into the corresponding annular groove (52) and in contact with the inner wall of the corresponding annular groove (52).

6. A clamp for punching holes in a press roll according to claim 5, characterized in that: The positioning mechanism (6) comprises a third ball (64); a plurality of positioning grooves (61) are provided in a circular array at the middle position of the outer peripheral wall of the circular plate (21); each positioning groove (61) is located between two corresponding annular grooves (52); an air storage groove (62) is provided at a position corresponding to the positioning groove (61) in the support plate (23); a piston plate (63) is slidably mounted in the air storage groove (62); the third ball (64) is rotatably mounted in the corresponding piston plate (63); and an end of the third ball (64) close to the corresponding positioning groove (61) is inserted into the corresponding positioning groove (61) and contacts the inner wall of the corresponding positioning groove (61).

7. A clamp for punching holes in a press roll according to claim 6, characterized in that: A one-way valve (65) is provided on the side wall of the support plate (23), and an exhaust end of the one-way valve (65) is inserted into the corresponding air storage tank (62) and fixedly connected to the corresponding support plate (23), and the one-way valve (65) is located above the limit block (41).

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