Transverse pulling closing and clamping device and transverse pulling device for film material production

Abstract

The utility model discloses a transverse pulling closing and clamping device and a film material production transverse pulling device, the transverse pulling closing and clamping device comprises a closing and clamping mechanism and a rotating mechanism, and the closing and clamping mechanism comprises a machine base and a closing and clamping disc rotationally installed on the machine base; the rotating mechanism comprises a rotating driving unit installed on the machine base and a driving wheel connected with the rotating driving end of the rotating driving unit, the driving wheel is parallel to the axis of the clamping disc, and the periphery of the driving wheel abuts against the periphery of the clamping disc. The rotary driving unit drives the driving wheel to rotate, the driving wheel drives the closing and clamping disc to rotate, the closing and clamping disc moves actively instead of being driven by a chain clamp originally, the speed difference between the closing and clamping disc and the chain clamp becomes small, impact points between the closing and clamping disc and the chain clamp are different, powder grinding of the closing and clamping disc is reduced, the probability of film breaking through transverse pulling is reduced, and the service life of the closing and clamping disc is prolonged. And the service life of the clip closing device is greatly prolonged.

Description

Technical Field

[0001] The utility model relates to the technical field of equipment accessories for a capacitor film production line, in particular to a horizontal pulling clamp closing device and a horizontal pulling device for film material production. Background Art

[0002] Currently, the transverse stretching of BOPP capacitor film production lines uses chain clamps to clamp the longitudinally stretched polypropylene sheet. The chain clamps run along tracks to achieve transverse stretching. At the entrance of the transverse stretching, the chain clamps are open to allow the thick sheet to enter the clamps. The clamps then pass through the clamp closer, closing the chain clamps and clamping the thick sheet to ensure normal subsequent stretching. However, the current clamp closer is driven by the chain clamp, which can cause the chain clamp to collide with the clamp closer, causing surface wear and generation of abrasive powder. This abrasive powder can fall onto the thick sheet, contaminating it and affecting the quality of the capacitor film product, particularly its electrical performance, causing it to fail to meet quality standards. Furthermore, this process creates dents on the closing plate of the transverse clamp closer, ultimately reducing the closing ability of the closer and preventing all chain clamps from closing. Utility Model Content

[0003] The purpose of the utility model is to provide a horizontal pulling clamp closer and a horizontal pulling device for film material production, so as to solve one or more technical problems existing in the prior art and at least provide a beneficial choice or create conditions.

[0004] The technical solutions adopted to solve the above technical problems are:

[0005] First, the utility model provides a horizontal pull clamp closer, comprising:

[0006] The clamping mechanism comprises a machine base and a clamping plate rotatably mounted on the machine base;

[0007] The rotating mechanism includes a rotating drive unit installed on the machine base and a driving wheel connected to the rotating drive end of the rotating drive unit. The driving wheel is arranged parallel to the axis of the chuck, and the outer periphery of the driving wheel abuts against the outer periphery of the chuck.

[0008] The beneficial effects of the horizontal pull clamp closer of the utility model are:

[0009] When in use, the driving wheel is driven to rotate by rotating the driving unit, and the driving wheel drives the closing disc to rotate, so that the closing disc is improved from being driven by the chain clamp to active movement, so that the speed difference between the closing disc and the chain clamp is reduced, and each collision point between the closing disc and the chain clamp is different, thereby reducing the generation of closing disc abrasion powder, reducing the probability of horizontal pulling and breaking the membrane, and greatly extending the service life of the clamp closer.

[0010] In addition, the present invention only requires adding a rotating mechanism to the original clamp closer, without the need to improve other structures.

[0011] As a further improvement of the above technical solution, the outer peripheral fixing sleeve of the driving wheel is provided with a rubber ring, and the rubber ring abuts against the outer periphery of the chuck.

[0012] As a further improvement of the above technical solution, an annular groove is provided on the outer peripheral wall of the driving wheel, and the rubber ring is sleeved in the annular groove.

[0013] As a further improvement of the above technical solution, the rotating mechanism further includes a support frame, and the rotating drive unit is adjustably mounted on the machine base through the support frame.

[0014] As a further improvement of the above technical solution, the support frame is adjustably mounted on the machine base in a radially sliding manner along the chuck.

[0015] As a further improvement of the above technical solution, the rotation drive unit is mounted on the support frame in an axially slidable and adjustably manner along the chuck disc.

[0016] As a further improvement of the above technical solution, the horizontal pulling clamp closer also includes a rotation mechanism, which includes a rotation drive unit that is transmission-connected to the machine base, and the rotation drive unit is used to drive the machine base to rotate around a rotation axis, and the rotation axis is eccentrically arranged parallel to the axis of the clamping disc.

[0017] As a further improvement of the above technical solution, the chuck includes a coaxially connected connecting disc body and an abutting disc body, the outer diameter of the connecting disc body is smaller than the outer diameter of the abutting disc body, the driving wheel abuts against the outer periphery of the connecting disc body, and the connecting disc body is connected to the rotation drive unit.

[0018] As a further improvement of the above technical solution, the connecting disc body and the abutting disc body are detachably connected.

[0019] The utility model also provides a transverse pulling device for film material production, including a film material conveying line and the transverse pulling clamp closing device, wherein transverse pulling chains and at least one transverse pulling clamp closing device are respectively provided on both sides of the film material conveying line, and the transverse pulling chains are evenly distributed with transverse zipper clamps, and the closing plate abuts against the transverse zipper clamp to close the transverse zipper clamp.

[0020] The beneficial effects of the transverse pulling device for film material production of the utility model are: improving the problem of the clamp grinding caused by the traditional transverse pulling clamp colliding with the transverse zipper clamp at high speed, greatly reducing the film breakage and large film quality problems caused by grinding, saving production costs and extending the service life of the clamp.

[0021] Other features and advantages of the present invention will be set forth in the following description, and in part will become apparent from the description, or may be understood by practicing the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0023] Figure 1 This is a structural diagram of an embodiment of the horizontal pull clip closer provided by the present utility model;

[0024] Figure 2 This is a top view of one side of an embodiment of the film material production horizontal stretching device provided by the present invention;

[0025] Figure 3 yes Figure 2 A partial enlarged view of part A;

[0026] Figure Number:

[0027] Horizontal clamp closer 100; clamping mechanism 110; base 111; clamping disc 112; connecting disc body 1121; abutting disc body 1122; rotating mechanism 120; rotating drive unit 121; driving wheel 122; rubber ring 123; annular groove 124; pin hole 125; supporting frame 126; bottom side plate 127; radial adjustment slot 1271; first locking screw 1272; top side plate 128; axial adjustment slot 1281; second locking screw 1282; rotating mechanism 130; rotating drive unit 131; rotating axis 132;

[0028] Horizontal pull chain 200. DETAILED DESCRIPTION

[0029] This section will describe in detail the specific embodiments of the present invention. The preferred embodiments of the present invention are shown in the accompanying drawings. The purpose of the accompanying drawings is to supplement the description of the text part of the specification with graphics, so that people can intuitively and vividly understand each technical feature and overall technical solution of the present invention, but it cannot be understood as a limitation on the scope of protection of the present invention.

[0030] In the description of the present invention, it should be understood that descriptions involving orientations, such as up, down, front, back, left, right, etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, they cannot be understood as limitations on the present invention.

[0031] In the description of the present invention, if there are words such as "several", it means one or more, and "more" means more than two. Greater than, less than, and exceed are understood to exclude the number itself, and above, below, and within are understood to include the number itself.

[0032] In the description of the present invention, unless otherwise clearly defined, terms such as setting, installing, and connecting should be understood in a broad sense, and technicians in the relevant technical field can reasonably determine the specific meanings of the above terms in the present invention based on the specific content of the technical solution.

[0033] The transverse stretching of BOPP capacitor film production lines involves clamping the longitudinally stretched polypropylene sheet with chain clamps, which run along tracks to achieve transverse stretching. The chain clamps at the transverse stretching entrance are open, allowing the sheet to enter the clamps. The chain clamps then close, securing the sheet and ensuring proper stretching. However, collisions between the chain clamps and the closers can cause surface wear and abrasion, generating abrasive particles. These particles can fall onto the sheet, contaminating it and potentially breaking the film during transverse stretching. Alternatively, they can enter the finished product, becoming impurities and impacting the film's quality, particularly its electrical properties, potentially causing it to fail to meet quality standards. To minimize the impact of machine abrasion on the manufacturing process, current measures include regular maintenance and inspection of equipment to maintain good condition and reduce wear-related dust generation. High-quality, wear-resistant equipment and materials are also used to minimize abrasive particles, which can increase production costs.

[0034] Furthermore, the existing closing plate 112 collides with the high-speed horizontal chain clip, causing the horizontal chain clip to close. During this process, since the closing plate 112 is made of plastic, the high-speed collision between the plastic and iron creates abrasive particles at the collision point of the closer. The chain clip temperature typically exceeds 100°C, making abrasive particles more likely to form. Long-term collisions and wear create dents on the closing plate 112, ultimately reducing the closing ability of the closer, preventing it from closing all chain clips and requiring frequent replacement, which increases production costs.

[0035] In view of the problems in the prior art that the chain clamp and the clamp closer wear out and produce powder due to direct hard collision, which contaminates the product and affects the product quality and efficiency, and the chain clamp closer has a short service life and needs to be replaced frequently, resulting in high costs, the utility model proposes a new type of horizontal pull clamp closer 100, which is modified on the basis of the existing clamp closer.

[0036] like Figure 1 As shown, the horizontal pulling clamp closer 100 of the present invention includes a clamping mechanism 110 and a rotating mechanism 120 .

[0037] The closing mechanism 110 of this embodiment includes a machine base 111 and a clamping plate 112. The clamping plate 112 is rotatably mounted on the machine base 111. In order to facilitate the description of the positional relationship between the various components, this embodiment takes the axis of the clamping plate 112 extending left and right as an example. In some other embodiments, according to different installation requirements, the axis of the clamping plate 112 can be extended in other directions. The clamping plate 112 is used to abut against the horizontal zipper clamp to close the horizontal zipper clamp moving at high speed.

[0038] The rotating mechanism 120 includes a rotating drive unit 121 and a driving wheel 122, wherein the rotating drive unit 121 is installed on the machine base 111, and the driving wheel 122 is connected to the rotating drive end of the rotating drive unit 121. The driving wheel 122 is arranged parallel to the axis of the chuck 112, and the outer periphery of the driving wheel 122 abuts against the outer periphery of the chuck 112.

[0039] It is understandable that the present invention adds a rotating mechanism 120 to the original clip closer without modifying other structures.

[0040] When in use, the driving wheel 122 is driven to rotate by rotating the driving unit 121, and the driving wheel 122 drives the closing plate 112 to rotate, so that the closing plate 112 is improved from being driven by the chain clamp to active movement, so that the speed difference between the closing plate 112 and the chain clamp is reduced, and each collision point between the closing plate 112 and the chain clamp is different, thereby reducing the generation of powder of the closing plate 112, reducing the probability of horizontal pulling and breaking the film, and greatly extending the service life of the clamp closer.

[0041] The rotational drive unit 121 of this embodiment is a stepper motor controlled by a stepper motor control system. The stepper motor control system consists of a 24V DC power supply, a speed control module, and a control module. The 24V DC power supply is powered by 220V AC power and converted to 24V DC power for output. DC power has a constant voltage, providing a more stable voltage supply compared to the fluctuations of AC power. DC power also does not generate the frequency-related electromagnetic interference found in AC power. Therefore, using a DC power supply can reduce interference in applications sensitive to electromagnetic interference. The speed control module and control module are powered by 24V DC, and the stepper motor is driven directly by the control module. The speed control module primarily controls three parameters: "PUL" (pulse count), "DIR" (direction), and "EN" (enable). These three parameters correspond to corresponding terminals on the control module. Since the common terminal of the existing speed control module parameters requires a "+12V" voltage, the three "+" terminals corresponding to the control module are connected to the common terminal of the speed control module. Furthermore, a closed-loop control encoder has been added to the stepper motor for better control. If the motor becomes stuck, the control module's "ALM" terminal will output a signal. Simply connecting a red indicator light to the "ALM" terminal allows for easy detection of any stalled stepper motor during inspection. The current pulse count is 800, or 800 pulses per second, with a full output current of 3.8A. Adjusting the speed control module's parameters allows the stepper motor to reach the speed of a 200-degree horizontal chain. The module also controls the motor's forward and reverse rotation, self-locking, and other functions.

[0042] like Figure 3 As shown, the outer peripheral fixing sleeve of the driving wheel 122 of this embodiment is provided with a rubber ring 123, which abuts against the outer periphery of the chuck 112, thereby increasing the friction between the driving wheel 122 and the chuck 112 and better driving the chuck 112 to rotate.

[0043] Furthermore, an annular groove 124 is provided on the outer peripheral wall of the driving wheel 122 , and the rubber ring 123 is sleeved in the annular groove 124 , which can improve the stability of the installation of the rubber ring 123 and prevent it from falling off.

[0044] In some embodiments, the material of the driving wheel 122 is 45# quenched and tempered steel. Quenching and tempering is a heat treatment process used to improve the mechanical properties of steel, which can further improve its hardness, strength and wear resistance, making it more suitable for occasions requiring higher mechanical properties. 45# steel is a carbon structural steel, and its performance improvement after quenching and tempering can be compared to the performance improvement of other steels after quenching and tempering.

[0045] An M5 pin hole 125 is also provided on the driving wheel 122. The pin hole 125 is used to fix the driving wheel 122 on the output shaft of the stepper motor, so that when the stepper motor rotates, there will be no speed difference between the driving wheel 122 and the output shaft of the stepper motor.

[0046] like Figure 1 As shown, the rotating mechanism 120 of this embodiment further includes a support frame 126 , and the rotating driving unit 121 is adjustably mounted on the base 111 via the support frame 126 .

[0047] The support frame 126 is adjustable and slidable along the radial direction of the chuck disc 112 on the machine base 111, so that the radial position between the driving wheel 122 and the chuck disc 112 can be adjusted. As time goes by, the rubber ring 123 will wear out. At this time, it is necessary to adjust the driving wheel 122 so that the driving wheel 122 is close to the chuck disc 112 and keeps the driving wheel 122 in contact with the chuck disc 112. Figure 1 As shown, the bottom of the support frame 126 of this embodiment is provided with two bottom side panels 127, the machine base 111 is arranged between the two bottom side panels 127, the bottom side panel 127 is provided with a radial adjustment groove 1271 extending radially, and a first locking screw 1272 is connected between the bottom side panel 127 and the machine base 111. The first locking screw 1272 passes through the radial adjustment groove 1271 and is connected to the machine base 111, so that the first locking screw 1272 and the radial adjustment groove 1271 can achieve a guiding effect and a locking effect.

[0048] Furthermore, the rotation drive unit 121 is slidably mounted on the support frame 126 along the axial direction of the chuck disc 112, so that the axial position between the drive wheel 122 and the chuck disc 112 can be adjusted. Figure 1 As shown, the top of the support frame 126 of this embodiment is provided with two top side panels 128, and the rotation drive unit 121 is arranged between the two top side panels 128. The top side panel 128 is provided with an axial adjustment groove 1281 extending left and right. A second locking screw 1282 is connected between the top side panel 128 and the rotation drive unit 121, and the locking screw passes through the axial adjustment groove 1281 and is connected to the rotation drive unit 121. In this way, the second locking screw 1282 and the axial adjustment groove 1281 can achieve a guiding effect and a locking effect.

[0049] In some embodiments, the support frame 126 is made of A3 steel. The technical requirements that the support frame 126 needs to meet during production are: the plates must be firmly welded together. Sharp edges must be chamfered with a radius of 6.5. The surface must be blackened and rust-proofed. Firm welding is to prevent the motor from vibrating and falling off, causing mechanical damage. The purpose of chamfering sharp edges is to remove burrs on parts, smooth the edges, facilitate assembly, and reduce the risk of cuts during use. The surface is treated with rust-proofing because the temperature of the horizontal pulling environment is high and the support frame 126 is prone to rust and become brittle.

[0050] Furthermore, the horizontal pulling clamp closer 100 of this embodiment also includes a rotating mechanism 130, which includes a rotating drive unit 131 that is transmission-connected to the machine base 111. The rotating drive unit 131 is used to drive the machine base 111 to rotate around a rotating axis 132. The rotating axis 132 is eccentrically arranged parallel to the axis of the closing disk 112. It can be understood that the rotating drive unit 131 drives the machine base 111 to rotate, so as to drive the closing disk 112 to swing, so as to realize the separation and combination of the closing disk 112 and the horizontal zipper clamp.

[0051] The rotation driving unit 131 of this embodiment adopts a rotary cylinder. In other embodiments, other driving structures may be adopted.

[0052] In addition, the chuck 112 includes a coaxially connected connecting disc body 1121 and an abutting disc body 1122, the outer diameter of the connecting disc body 1121 is smaller than the outer diameter of the abutting disc body 1122, the driving wheel 122 abuts against the outer periphery of the connecting disc body 1121, and the connecting disc body 1121 is connected to the rotation drive unit 121, while the abutting disc body 1122 abuts against the horizontal zipper clamp, so that the connecting disc body 1121 and the abutting disc body 1122 can be made of different materials respectively.

[0053] Furthermore, the connecting disc body 1121 and the abutting disc body 1122 of this embodiment are detachably connected, and the abutting disc body 1122 can be directly replaced without disassembling other components, which is convenient to operate.

[0054] During operation, the DC24V power module, speed control module, and control module are installed in the electrical box. This helps prevent electric shock and creates an aesthetically pleasing appearance. When installing the stepper motor on-site, due to the higher ambient temperature at the cross-pull, the stepper motor power cables are shortened. A terminal block is used as the intermediate point, connecting a high-temperature cable. This cable then passes through the high-temperature zone of the cross-pull and into the cross-pull console, where the other end is connected to the control module. When wiring, pay attention to the order of the motor power cables, otherwise the motor may become stuck and stop rotating. Similarly, the closed-loop control communication cable is connected to the control module in this way. The DC24V power supply is supplied by the 220V power supply within the cross-pull console.

[0055] Fix the support frame 126 and the base 111 on the rotating cylinder and adjust the angle of the drive wheel 122 to make it fit the clamping plate 112. At this point, turn on the power, the stepper motor rotates, and the rotation direction of the clamp is adjusted to match the running direction of the cross-pull chain 200. Use a tachometer to measure the actual speed of the clamp, and adjust the parameters on the speed control module to match the normal operating speed of the cross-pull chain 200. The entire solution is completed.

[0056] like Figure 2 As shown, the present invention also proposes a transverse pulling device for film material production, including a film material conveying line and the above-mentioned transverse pulling clamp closer 100, and transverse pulling chains 200 and at least one transverse pulling clamp closer 100 are respectively provided on the left and right sides of the film material conveying line, and the transverse pulling chain 200 is evenly distributed with multiple transverse zipper clamps, and the closing plate 112 abuts against the transverse zipper clamp to close the transverse zipper clamp.

[0057] The present application improves the problem of clamp grinding caused by the traditional horizontal pull clamp 100 colliding with the horizontal zipper clamp at high speed, greatly reduces the film breakage and large film quality problems caused by grinding, saves production costs, and extends the service life of the clamp.

[0058] The motor in this technical solution is powered by 24V DC, which offers greater safety. The lower voltage of 24V DC makes it relatively safer and reduces the risk of electric shock, especially in situations where electrical components must be touched. Low power consumption: DC is generally more efficient than AC when converting to other voltages, which helps reduce energy loss. Power supply stability: DC voltage is constant. Compared to the fluctuations of AC, DC provides a more stable voltage supply, which is important for devices sensitive to voltage fluctuations. Reduced electromagnetic interference: DC does not generate the frequency-related electromagnetic interference found in AC. Therefore, using a DC power supply can reduce interference in some applications sensitive to electromagnetic interference. Longer equipment life: DC power places less stress on internal components of electrical appliances, which may help extend the service life of certain devices. This significantly reduces the risk of film breakage caused by abrasive wear or the resulting poor quality products requiring downgrade due to abrasive wear, improving production stability and costs. This also extends the service life of the horizontal clamp 100, reduces downtime for repair and replacement of the clamp, and improves equipment utilization.

[0059] The above specifically describes the preferred embodiments of the present invention, but the invention is not limited to the embodiments. Those skilled in the art may make various equivalent modifications or substitutions without violating the spirit of the present invention. These equivalent modifications or substitutions are all included in the scope defined by the claims of this application.

Claims

1. A horizontal pull clip closer, characterized in that: include: The clamping mechanism comprises a machine base and a clamping plate rotatably mounted on the machine base; The rotating mechanism includes a rotating drive unit installed on the machine base and a driving wheel connected to the rotating drive end of the rotating drive unit. The driving wheel is arranged parallel to the axis of the chuck, and the outer periphery of the driving wheel abuts against the outer periphery of the chuck.

2. The horizontal pull clip closer according to claim 1, characterized in that: The outer periphery fixing sleeve of the driving wheel is provided with a rubber ring, and the rubber ring abuts against the outer periphery of the chuck.

3. The horizontal pull clip closer according to claim 2, characterized in that: An annular groove is provided on the outer peripheral wall of the driving wheel, and the rubber ring is sleeved in the annular groove.

4. The horizontal pull clip closer according to claim 1, characterized in that: The rotating mechanism further includes a support frame, and the rotating drive unit is adjustably mounted on the machine base via the support frame.

5. The horizontal pull clip closer according to claim 4, characterized in that: The support frame is adjustable and slidably mounted on the machine base along the radial direction of the chuck.

6. The horizontal pull clip closer according to claim 4, characterized in that: The rotation driving unit is slidably mounted on the support frame along the axial direction of the chuck.

7. The horizontal pull clip closer according to claim 1, characterized in that: The horizontal pulling clamp closer also includes a rotating mechanism, which includes a rotating drive unit that is transmission-connected to the machine base. The rotating drive unit is used to drive the machine base to rotate around a rotating axis, and the rotating axis is eccentrically arranged parallel to the axis of the clamping disc.

8. The horizontal pull clip closer according to claim 1, characterized in that: The chuck includes a coaxially connected connecting disc body and an abutting disc body. The outer diameter of the connecting disc body is smaller than the outer diameter of the abutting disc body. The driving wheel abuts against the outer periphery of the connecting disc body. The connecting disc body is connected to the rotation drive unit.

9. The horizontal pull clip closer according to claim 8, characterized in that: The connecting disc body and the abutting disc body are detachably connected.

10. A film production horizontal stretching device, characterized by: It comprises a film material conveying line and a horizontal pull clamp closer as described in any one of claims 1 to 9, wherein horizontal pull chains and at least one horizontal pull clamp closer are respectively provided on both sides of the film material conveying line, and the horizontal pull chains are evenly distributed with horizontal zipper clamps, and the closing plate abuts against the horizontal zipper clamp to close the horizontal zipper clamp.

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