Belt pressing mechanism

Abstract

A belt pressing mechanism includes a pressing assembly and a pressing plate, wherein the pressing assembly includes a driving member and a driving end capable of moving under the driving of the driving member, and the driving end is used to abut against the pressing plate to drive the pressing plate to move in a radial straight line along a roller. Such an arrangement avoids the situation where the diaphragm is easily damaged by slipping on the surface of the roller due to arc motion, thereby improving the reliability of the belt pressing mechanism.

Description

Technical Field

[0001] The invention relates to a belt pressing mechanism, belonging to the technical field of automation equipment. Background Art

[0002] Please refer to Figure 1 As shown, when the membrane 1' is rewound, the membrane 1' needs to be pressed against the roller 2'. In the prior art, a driving member is used to connect the pressure plate 3', and the pressure plate 3' is pressed against the roller 2' by rotation. At this time, the movement trajectory of the pressure plate 3' is an arc. When the pressure plate 3' is in contact with the roller 2', if the lower surface of the pressure plate 3' and the surface of the roller 2' are not tangent, the pressure plate 3' is easy to slip on the surface of the roller 2' and cause the membrane 1' to tear, causing damage to the membrane 1'. In addition, after the reel is changed, there is no need for the pressure plate 3' to abut against the roller 2' to clamp the membrane 1'. However, when the machine vibrates, it is easy for the pressure plate 3' to contact the roller 2', affecting the transmission of the membrane 1'. Summary of the invention

[0003] The object of the present invention is to provide a belt pressing mechanism which can avoid adverse effects on the diaphragm.

[0004] To achieve the above-mentioned purpose, the present invention adopts the following technical solution: a belt pressing mechanism, which includes a clamping assembly and a pressure plate, wherein the clamping assembly includes a driving member and a driving end capable of moving under the drive of the driving member, and the driving end is used to abut the pressure plate to drive the pressure plate to move in a radial straight line along the roller.

[0005] As a further improved technical solution of the present invention, the belt pressing mechanism includes a slider connected to the pressing plate and an elastic member that resists the slider.

[0006] As a further improved technical solution of the present invention, the belt pressing mechanism includes a guide rod for cooperating with the sliding block, and the elastic member is sleeved on the guide rod.

[0007] As a further improved technical solution of the present invention, the guide rod is provided with a limit plate for limiting excessive movement of the slider, and the limit plate and the guide rod are provided with a threaded structure that cooperates with each other and can adjust the position of the limit plate.

[0008] As a further improved technical solution of the present invention, there are two sliders respectively connected to two sides of the pressure plate, and each slider includes the guide rod and the elastic member matched therewith.

[0009] As a further improved technical solution of the present invention, the belt pressing mechanism includes a mounting plate, the mounting plate is provided with a through hole corresponding to the pressing plate; the guide rod is fixed on the mounting plate, and the elastic member is supported between the mounting plate and the slider.

[0010] As a further improved technical solution of the present invention, the clamping assembly includes a base, a connecting rod hinged to the base, and a pressure rod fixing block, wherein one end of the connecting rod is hinged to the driving member, and the driving member is hinged to the pressure rod fixing block; a pressure rod is provided on the pressure rod fixing block, and the driving end is located on the pressure rod.

[0011] As a further improved technical solution of the present invention, the driving end is provided with a pressure head, and the pressure head has an arc-shaped pressing surface abutting against the pressing plate.

[0012] As a further improved technical solution of the present invention, the driving member is a pressing hand, and the pressing hand can drive the driving end to contact the pressing plate to make the pressing plate move in a straight line.

[0013] As a further improved technical solution of the present invention, the belt pressing mechanism further includes a detection device for detecting the position of the pressing plate.

[0014] Compared with the prior art, the present invention makes the pressure plate move in a radial straight line along the roller, thereby avoiding the situation where the diaphragm is easily damaged by slipping on the surface of the roller due to arc movement, thereby improving the reliability of the belt pressing mechanism. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the action of the pressure plate of the pressure belt mechanism clamping the diaphragm in the prior art.

[0016] Figure 2 It is a front view of the belt pressing mechanism of the present invention.

[0017] Figure 3 yes Figure 2 Top view of the .

[0018] Figure 4 is a schematic diagram of the clamping assembly. DETAILED DESCRIPTION

[0019] Please refer to Figures 2 to 4 As shown, the present invention discloses a belt pressing mechanism, which includes a mounting plate 1, a pressing assembly 2 mounted on the mounting plate 1, and a pressing plate 3 used to cooperate with the pressing assembly 2. The pressing assembly 2 includes a driving member 20 and a driving end 24 that can move under the drive of the driving member 20, and the driving end 24 is used to abut against the pressing plate 3 to drive the pressing plate 3 to move in a radial straight line along the roller.

[0020] Please refer to Figure 4As shown, the clamping assembly 2 includes a base 21, a connecting rod 22 hinged to the base 21, and a pressure rod fixing block 23, wherein the base 21 includes a first pivoting portion 211, a second pivoting portion 212, and a groove 213 located between the first pivoting portion 211 and the second pivoting portion 212; one end of the connecting rod 22 is hinged to the first pivoting portion 211 through a first hinge shaft 221, and the other end of the connecting rod 22 is hinged to the driving member 20 through a second hinge shaft 222. One end of the pressure rod fixing block 23 is hinged to the second pivoting portion 212 through a third hinge shaft 231, and is hinged to the driving member 20 through a fourth hinge shaft 232. The clamping assembly 2 is a four-link structure. A pressure rod 25 is provided on the pressure rod fixing block 23, and the driving end 24 is located on the pressure rod 25.

[0021] The driving member 20 in the illustrated embodiment of the present invention is a pressing hand, which can drive the second hinge shaft 222 to move in the groove 213 and simultaneously drive the pressure rod fixing block 23 , the pressure rod 25 and the driving end 24 to rotate around the third hinge shaft 231 .

[0022] Preferably, the driving end 24 is a pressure head, and the pressure head has an arc-shaped pressing surface 241 to reduce friction with the pressing plate 3, and can better drive the pressing plate 3 to move in a straight line. Specifically, in the illustrated embodiment of the present invention, the driving end 24 of the clamping assembly 2 and the pressing plate 3 are not directly connected, and the movement trajectory of the pressing plate 3 is a straight line, so that the pressing plate 3 can move along the radial direction of the roller, thereby preventing the pressing plate 3 from tearing the diaphragm and causing damage to the diaphragm.

[0023] The mounting plate 1 is provided with a through hole 11 corresponding to the pressing plate 3 , so that the pressing plate 3 can move on one side of the through hole 11 or move through the through hole 11 .

[0024] The belt pressing mechanism includes a slider 31 connected to the pressing plate 3 , an elastic member 32 for holding the slider 31 , a guide rod 33 for cooperating with the slider 31 , and a limit plate 34 for limiting excessive movement of the slider 31 .

[0025] Preferably, in the illustrated embodiment of the present invention, there are two sliders 31 connected to the two sides (e.g., the left and right sides) of the pressing plate 3, and each slider 31 includes the guide rod 33, the elastic member 32, the limit plate 34 and other structures matched therewith. Such an arrangement can improve the stability of the slider 31 when sliding, and at the same time, by providing two elastic members 32, the rebound force can be improved, and the risk of the pressing plate 3 abutting against the roller when vibrating, thereby affecting the transmission of the diaphragm, is reduced.

[0026] In order to simplify the description, only one slider 31 and the elements matched therewith are taken as an example below. The guide rod 33 is fixed on the mounting plate 1. The elastic member 32 is a spring, which is sleeved on the guide rod 33 and abuts between the mounting plate 1 and the slider 31 to provide an upward restoring force to the slider 31. Of course, in other embodiments, the elastic member 32 can also adopt other elements with elastic restoring force. The limit plate 34 and the guide rod 33 are provided with a threaded structure that cooperates with each other and can adjust the position of the limit plate 34. Specifically, in one embodiment, the upper end of the guide rod 33 has an external thread, and the limit plate 34 has an internal threaded hole that cooperates therewith, and the limit plate 34 is movably arranged on the limit plate 34, and the position of the pressure plate 3 can be adjusted.

[0027] The belt pressing mechanism of the present invention may also include a detection device (not shown) for detecting the position of the pressing plate 3. The detection device includes a sensing sheet and a sensor that cooperates with the sensing sheet. In one embodiment of the present invention, the sensing sheet may be disposed on the slider 31, and the sensor may be disposed on the mounting plate 1. Of course, in other embodiments, the positions of the sensing sheet and the sensor may be swapped, for example, the sensing sheet may be disposed on the mounting plate 1, and the sensor may be disposed on the slider 31. In order to improve the accuracy of the detection, the sensor is preferably a photoelectric sensor. By providing the detection device, when the pressing plate 3 moves in a radial straight line along the roller, the position of the pressing plate 3 can be detected by the change in the relative position of the sensing sheet and the sensor, and it can be judged whether the pressing plate 3 has moved to the set position, thereby improving the reliability of the belt pressing mechanism of the present invention.

[0028] When changing the roll, the hand is pressed down manually, and the pressure head contacts the pressing plate 3, so that the pressing plate 3 moves downward in a straight line and cooperates with the roller to press the diaphragm. After the roll change is completed, the hand is pulled up manually, and the pressing plate 3 returns to its original position under the action of the elastic member 32, so that the pressing plate 3 is separated from the roller by a certain distance to avoid affecting the transmission of the diaphragm.

[0029] The above embodiments are only used to illustrate the present invention but not to limit the technical solutions described in the present invention. The understanding of this specification should be based on the technicians in the relevant technical field. For example, the directional descriptions such as "front", "back", "left", "right", "up", and "down" are described in detail in this specification with reference to the above embodiments. However, ordinary technicians in this field should understand that technicians in the relevant technical field can still modify or replace the present invention with equivalents, and all technical solutions and improvements that do not depart from the spirit and scope of the present invention should be covered within the scope of the claims of the present invention.

Claims

1. A belt pressing mechanism, characterized in that: It comprises a pressing assembly and a pressing plate, wherein the pressing assembly comprises a driving member and a driving end capable of moving under the driving of the driving member, and the driving end is used to abut against the pressing plate to drive the pressing plate to move linearly along the radial direction of the roller to press the diaphragm between the pressing plate and the roller; The belt pressing mechanism comprises a slider connected to the pressing plate and an elastic member abutting against the slider; When the driving end is not in contact with the pressure plate, the elastic member provides a force to the pressure plate in a direction away from the roller so that the pressure plate is spaced a certain distance from the roller, thereby preventing the pressure plate from affecting the transmission of the diaphragm.

2. The belt pressing mechanism according to claim 1, characterized in that: The belt pressing mechanism comprises a guide rod used to cooperate with the sliding block, and the elastic member is sleeved on the guide rod.

3. The belt pressing mechanism according to claim 2, characterized in that: The guide rod is provided with a limit plate for limiting excessive movement of the slider, and the limit plate and the guide rod are provided with a threaded structure that cooperates with each other and can adjust the position of the limit plate.

4. The belt pressing mechanism according to claim 3, characterized in that: There are two sliders which are respectively connected to two sides of the pressing plate, and each slider includes the guide rod and the elastic member matched therewith.

5. The belt pressing mechanism according to claim 4, characterized in that: The belt pressing mechanism comprises a mounting plate, the mounting plate is provided with a through hole corresponding to the pressing plate; the guide rod is fixed on the mounting plate, and the elastic member is supported between the mounting plate and the sliding block.

6. The belt pressing mechanism according to claim 1, characterized in that: The clamping assembly includes a base, a connecting rod hinged to the base, and a pressure rod fixing block, wherein one end of the connecting rod is hinged to the driving member, and the driving member is hinged to the pressure rod fixing block; a pressure rod is provided on the pressure rod fixing block, and the driving end is located on the pressure rod.

7. The belt pressing mechanism according to claim 6, characterized in that: The driving end is provided with a pressure head, and the pressure head has an arc-shaped pressing surface abutting against the pressing plate.

8. The belt pressing mechanism according to claim 6, characterized in that: The driving member is a pressing hand, and the pressing hand can drive the driving end to contact the pressing plate, so that the pressing plate moves in a straight line.

9. The belt pressing mechanism according to any one of claims 1 to 8, characterized in that: The belt pressing mechanism further comprises a detection device for detecting the position of the pressing plate.

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