Tensioning device for winding gum dipping canvas

Abstract

The tensioning device comprises a frame, a two-way screw lever is installed in the frame through a bearing, two sets of lead screw sleeves are connected to the side wall of the two-way screw lever in a sleeved mode, the side walls of the two sets of lead screw sleeves are both fixedly connected with sleeving plates in a sleeved mode, a positioning rod penetrates through the two sets of sleeving plates in a sliding mode, and the positioning rod is connected with the two sets of lead screw sleeves in a sleeved mode. The two ends of the positioning rod are fixedly connected with the top face and the bottom face of the interior of the frame respectively, a self-locking type forward and reverse rotation motor is installed on the upper portion of the frame, the output end of the self-locking type forward and reverse rotation motor is connected with a two-way screw rod through a coupler, a concave base is arranged in the frame, and an abutting roller is installed in the concave base through a bearing. The tensioning device has the advantages that the sleeving plates are adopted, the using positions of the multiple roller structures can be adjusted through the arranged sleeving plates, canvas can be wound and installed conveniently, and the using practicability of the tensioning device for winding the gum dipping canvas is improved.

Description

Technical Field

[0001] This utility model relates to the field of impregnation machine technology, and more specifically, to a tensioning device for winding impregnated canvas. Background Technology

[0002] A dipping machine is a mechanical device used to uniformly coat the surface of a substrate with adhesive. It is widely used in composite materials, electronic circuit boards, textiles and other fields. When using a dipping machine to dip canvas, a winding device is required to wind up the dipped canvas. In this process, to prevent the canvas from loosening, a tensioning device is often used to adjust the tension of the wound canvas. In practice, it has the advantages of simple operation, stable structure and good performance.

[0003] The prior art discloses a tension adjustment mechanism for a canvas winding device of a dipping machine, with application number CN202323307779.5. Before actual use, the canvas needs to be wrapped and bonded to multiple rollers. The installation height of the multiple rollers is different, making it difficult to wind and install the canvas. Therefore, the winding and installation of the canvas of this utility model is inconvenient. At the same time, when the canvas is detached from multiple rollers, there is no indication structure, and the winding device continues to run idle, which will lead to a waste of power resources and reduce the practicality of this utility model.

[0004] No effective solutions have yet been proposed to address the problems in the relevant technologies. Utility Model Content

[0005] (a) Technical problems to be solved

[0006] To address the shortcomings of existing technologies, this utility model provides a tensioning device for winding dipped canvas. It has the advantages of being able to adjust the position of multiple roller structures to facilitate the winding and installation of the canvas, and having a prompting structure to indicate to the operator whether the canvas has detached from the multiple roller structures, thereby solving the problems in the background technology mentioned above.

[0007] (II) Technical Solution

[0008] To achieve the advantages of adjustable positions of multiple roller structures, convenient canvas winding and installation, and a warning structure to indicate to operators whether the canvas has detached from the multiple roller structures, the specific technical solution adopted by this utility model is as follows:

[0009] A tensioning device for winding PVC-coated canvas includes a frame. A bidirectional lead lever is mounted inside the frame via bearings. Two sets of lead screw sleeves are fitted onto the side walls of the bidirectional lead lever, and each set of lead screw sleeves has a connecting plate fixedly fitted onto its side wall. A positioning rod slides through the two sets of connecting plates, and the two ends of the positioning rod are fixedly connected to the top and bottom surfaces of the frame, respectively. A self-locking forward and reverse motor is mounted on the upper part of the frame, and the output end of the self-locking forward and reverse motor is connected to the bidirectional lead lever via a coupling. A concave seat is provided inside the frame, and an abutment roller is mounted inside the concave seat via bearings. Two sets of concave frames are mounted below the upper set of connecting plates, and each set of concave frames has a connecting plate mounted inside via bearings. The guide roller has two sets of T-shaped guide rods slidingly passing through the upper part of the lower set of sleeve plates. Each set of T-shaped guide rods has an mounting plate at its upper end, and a concave plate is installed between the two sets of mounting plates. A tension roller is installed inside the concave plate via bearings. An electric telescopic rod is fixedly passing through the lower part of the lower set of sleeve plates, and a lifting plate is installed at the telescopic end of the electric telescopic rod. Lifting lugs are installed on the lower part of the concave plate and the upper part of the lifting plate, and a tension sensor is installed between the two sets of lifting lugs. A concave block is installed on the lower part of the lower set of sleeve plates. Two sets of support plates are installed inside the frame. Two sets of horizontal plates are installed on both sides of the concave plate, and multiple sets of support rollers are installed between the two sets of horizontal plates on the same side via bearings.

[0010] Furthermore, the bidirectional lead lever is engaged with the two sets of lead screw threads.

[0011] Furthermore, two sets of vertical rods are installed on the upper part of the concave seat, and the upper ends of the two sets of vertical rods slide through the lower part of the upper set of socket plates. Limiting plates are installed on the upper ends of the two sets of vertical rods. A protective tube and a battery box are installed on the upper part of the upper set of socket plates. A sealing plug is provided at the opening of the protective tube. An alarm is installed on the upper part of the battery box, and a push switch is installed on the upper part of the alarm.

[0012] Furthermore, a storage battery is installed inside the battery box, and the push switch is electrically connected to the storage battery and the alarm via wires.

[0013] Furthermore, the upper part of the sealing plug is perforated with a breathable mesh.

[0014] Furthermore, a control panel and a controller are installed on the upper part of the frame. The control panel is electrically connected to a self-locking forward and reverse motor via wires, and the controller is electrically connected to an electric telescopic rod and a tension sensor via wires.

[0015] (III) Beneficial Effects

[0016] Compared with the prior art, the present invention provides a tensioning device for winding PVC-impregnated canvas, which has the following advantages:

[0017] (1) This utility model uses a connecting plate. Before actually using the tensioning device for winding the dipped canvas, the self-locking forward and reverse motor is started using the control panel. The output end of the self-locking forward and reverse motor drives the bidirectional lever to rotate. Since the bidirectional lever and the two sets of screw sleeves are engaged with each other, the rotating bidirectional lever can push the two sets of screw sleeves closer to each other. The two sets of screw sleeves moving in opposite directions can cause the two sets of guide rollers to move down through the two sets of connecting plates, while the abutment rollers move up. When the two sets of support plates and multiple sets of support rollers are all on the same horizontal line, the self-locking forward and reverse motor is stopped using the control panel. At this time, the operator can move one end of the canvas by hand to move it along the two sets of support plates and multiple sets of support rollers. Then the operator can manually wind the canvas. One end is connected to the winding roller of the external receiving and winding device. Then, using the control panel, the output end of the self-locking forward and reverse motor rotates in the opposite direction. The two sets of guide rollers move upward and reset, and the contact roller moves downward and reset. When the canvas is taut, the winding operation can be performed. At the same time, the controller is connected to an external power supply. When the tension of the canvas on the tension roller is insufficient, the tension sensor sends a signal to the controller, and the controller shortens the electric telescopic rod. When the tension of the canvas on the tension roller is sufficient, the tension sensor sends a signal to the controller, and the controller stops the electric telescopic rod from extending or retracting, thus completing the canvas winding and tensioning operation. Through the set socket plate, the usage position of multiple roller structures can be adjusted, which facilitates the installation of canvas winding and improves the practicality of the tensioning device for PVC-impregnated canvas winding.

[0018] (2) This utility model adopts a concave seat and abutment roller. According to the above operation, after the canvas is rolled up and installed, the operator loosens the limit plate. Under the action of gravity, the concave seat and abutment roller will move vertically downward. When the abutment roller contacts the canvas, the abutment roller stops moving downward. When the canvas is separated from the two sets of guide rollers and tension rollers, the abutment roller loses the support of the canvas. Under the action of gravity, the concave seat and abutment roller will continue to move downward. When the limit plate presses the button switch, the alarm starts to work. The operator can know that the canvas is about to be rolled up according to the sound of the alarm. The operator can then close the external receiving and rolling device in time to avoid the external receiving and rolling device from running continuously. The protective tube and sealing plug can prevent foreign objects from contacting the button switch. The concave seat and abutment roller have a prompting structure, which can prompt the operator whether the canvas has separated from the multiple roller structure, thus improving the usability of the tensioning device for rolling up the dipped canvas. Attached Figure Description

[0019] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0020] Figure 1 This is a schematic diagram of the structure of a tensioning device for winding up dipped canvas according to the present invention;

[0021] Figure 2 This is a front view of the socket plate proposed in this utility model;

[0022] Figure 3 This is a perspective view of the support roller proposed in this utility model;

[0023] Figure 4 This utility model proposes Figure 1 Enlarged view of A in the middle;

[0024] Figure 5 This utility model proposes Figure 1 A magnified view of B in the middle.

[0025] In the picture:

[0026] 1. Frame; 2. Two-way lead screw lever; 3. Lead screw sleeve; 4. Connecting plate; 5. Self-locking forward and reverse motor; 6. Positioning rod; 7. Concave seat; 8. Abutment roller; 9. Concave frame; 10. Guide roller; 11. T-shaped guide rod; 12. Mounting plate; 13. Concave plate; 14. Tensioning roller; 15. Electric telescopic rod; 16. Lifting plate; 17. Lifting lug; 18. Tension sensor; 19. Concave block; 20. Horizontal plate; 21. Support roller; 22. Support plate; 23. Vertical rod; 24. Limiting plate; 25. Protective tube; 26. Battery box; 27. Alarm; 28. Sealing plug; 29. ​​Ventilation mesh. Detailed Implementation

[0027] To further illustrate the various embodiments, the present invention provides accompanying drawings, which are part of the disclosure of the present invention. These drawings are mainly used to illustrate the embodiments and can be used in conjunction with the relevant descriptions in the specification to explain the operating principles of the embodiments. With reference to these contents, those skilled in the art should be able to understand other possible implementation methods and the advantages of the present invention. The components in the figures are not drawn to scale, and similar component symbols are usually used to represent similar components.

[0028] According to an embodiment of the present invention, a tensioning device for winding PVC-impregnated canvas is provided.

[0029] The present invention will now be further described in conjunction with the accompanying drawings and specific embodiments, such as... Figure 1-5 As shown, a tensioning device for winding dipped canvas according to an embodiment of the present invention includes a frame 1. A bidirectional lever 2 is mounted inside the frame 1 via bearings. Two sets of lead screw sleeves 3 are sleeved on the side walls of the bidirectional lever 2, and each set of lead screw sleeves 3 is fixedly sleeved with a connecting plate 4. A positioning rod 6 slides through the two sets of connecting plates 4, and both ends of the positioning rod 6 are fixedly connected to the top and bottom surfaces of the frame 1, respectively. A self-locking forward and reverse motor 5 is mounted on the upper part of the frame 1, and the output end of the self-locking forward and reverse motor 5 is connected to the bidirectional lever 2 via a coupling. A concave seat 7 is provided inside the frame 1, and an abutment roller 8 is mounted inside the concave seat 7 via bearings. Two sets of concave frames 9 are mounted below the upper set of connecting plates 4, and guide rollers 10 are mounted inside the two sets of concave frames 9 via bearings. Two sets of T-shaped guide rods 11 slide through the upper part of the lower set of connecting plates 4. The upper ends of both sets of T-shaped guide rods 11 are equipped with mounting plates 12, and a concave plate 13 is installed between the two sets of mounting plates 12. A tension roller 14 is installed inside the concave plate 13 through a bearing. An electric telescopic rod 15 is fixedly inserted through the lower part of a set of lower sleeve plates 4, and a lifting plate 16 is installed at the telescopic end of the electric telescopic rod 15. A lifting lug 17 is installed at the lower part of the concave plate 13 and the upper part of the lifting plate 16, and a tension sensor 18 is installed between the two sets of lifting lugs 17. A concave block 19 is installed at the lower part of the lower set of sleeve plates 4. Two sets of support plates 22 are installed inside the frame 1. Two sets of horizontal plates 20 are installed on both sides of the concave plate 13. Multiple sets of support rollers 21 are installed between the two sets of horizontal plates 20 on the same side through a bearing. Through the sleeve plates 4, the position of multiple roller structures can be adjusted, which facilitates the winding and installation of the canvas and improves the practicality of the tensioning device for winding the dipped canvas.

[0030] In one embodiment, the bidirectional lead lever 2 and the two sets of lead screw sleeves 3 are threadedly engaged with each other, which facilitates the adjustment of the usage position of the two sets of lead screw sleeves 3.

[0031] In one embodiment, two sets of vertical rods 23 are installed on the upper part of the concave seat 7, and the upper ends of the two sets of vertical rods 23 slide through the lower part of the upper set of connecting plates 4. Limiting plates 24 are installed on the upper ends of the two sets of vertical rods 23. A protective tube 25 and a battery box 26 are installed on the upper part of the upper set of connecting plates 4. A sealing plug 28 is provided at the opening of the protective tube 25. An alarm 27 is installed on the upper part of the battery box 26, and a push switch is installed on the upper part of the alarm 27. Through the concave seat 7 and the contact roller 8, a prompting structure is provided, which can prompt the operator whether the canvas has detached from the multiple roller structure, thereby improving the usability of the tensioning device for winding the dipped canvas.

[0032] In one embodiment, a storage battery is installed inside the battery box 26, and a push switch is electrically connected to the storage battery and the alarm 27 via wires, with the storage battery providing power to the alarm 27.

[0033] In one embodiment, a ventilated mesh 29 extends through the upper part of the sealing plug 28, ensuring that the sound emitted by the alarm 27 can be transmitted out of the interior of the protective tube 25.

[0034] In one embodiment, a control panel and a controller are installed on the upper part of the frame 1. The control panel is electrically connected to the self-locking forward and reverse motor 5 via wires, and the controller is electrically connected to the electric telescopic rod 15 and the tension sensor 18 via wires. The control circuits of the control panel and the controller can be implemented by simple programming by those skilled in the art and are common knowledge in the art. They are only used and not modified, so the control method and circuit connection will not be described in detail.

[0035] Working principle:

[0036] Before actually using the tensioning device for winding the PVC-coated canvas, the self-locking reversible motor 5 is activated using the control panel. The output of the self-locking reversible motor 5 drives the bidirectional lever 2 to rotate. Since the bidirectional lever 2 and the two sets of lead screw sleeves 3 are threadedly engaged, the rotating bidirectional lever 2 pushes the two sets of lead screw sleeves 3 closer together. The two sets of lead screw sleeves 3 moving in opposite directions, through the two sets of connecting plates 4, cause the two sets of guide rollers 10 to move downwards, while the contact rollers 8 move upwards. When the two sets of support plates 22 and the multiple sets of support rollers 21 are all on the same horizontal line, the self-locking reversible motor 5 is stopped using the control panel. At this time, the operator... A person can manually move one end of the canvas along the two sets of support plates 22 and multiple sets of support rollers 21. Then, the operator manually connects one end of the canvas to the winding roller of the external receiving and winding device. Using the control panel, the output of the self-locking reversible motor 5 is rotated in the opposite direction, causing the two sets of guide rollers to move upwards and reset, and the contact roller 8 to move downwards and reset. When the canvas is taut, winding can begin. Simultaneously, the controller is connected to an external power supply. When the tension of the canvas on the tension roller 14 is insufficient, the tension sensor 18 sends a signal to the controller, which then shortens the electric telescopic rod 15. When the tension of the canvas on the tension roller 14 is sufficient, the tension is reduced. Force sensor 18 sends a signal to controller, which stops the electric telescopic rod 15 from extending or retracting, completing the canvas winding and tensioning operation. The socket plate 4 allows adjustment of the positions of multiple roller structures, facilitating canvas winding and installation, and improving the usability of the tensioning device for coated canvas winding. Furthermore, as described above, after the canvas winding and installation is completed, the operator releases the limit plate 24. Under gravity, the concave seat 7 and the contact roller 8 will move vertically downwards. When the contact roller 8 contacts the canvas, it stops moving downwards. When the canvas disengages from the two sets of guide rollers 10 and tension roller 14, the contact roller... 8. Without the support of the canvas, the concave seat 7 and the abutment roller 8 will continue to move downwards under the action of gravity. When the limit plate 24 presses the button switch, the alarm 27 starts to work. The operator can know from the sound of the alarm 27 that the canvas is about to be rolled up. The operator can then close the external receiving roll device in time to avoid the external receiving roll device from running idly. The protective tube 25 and the sealing plug 28 can prevent foreign objects from contacting the button switch. The concave seat 7 and the abutment roller 8 have a prompting structure that can prompt the operator whether the canvas has detached from the multiple roller structure, which improves the usability of the tensioning device for rolling up the dipped canvas.

[0037] In this utility model, unless otherwise explicitly specified and limited, the terms "installation", "setting", "connection", "fixing", "screw connection", etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal connection of two components or the interaction between two components. Unless otherwise explicitly limited, those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0038] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A tensioning device for impregnated canvas winding, characterized in that, The utility model provides a kind of frame (1), the inside of the frame (1) is equipped with two-way screw lever (2) by bearing, and the side wall of two-way screw lever (2) is equipped with two groups of screw sleeve (3), and the side wall of two groups of the screw sleeve (3) is fixedly equipped with sleeve plate (4), two groups of the sleeve plate (4) between slidingly penetrating is equipped with positioning rod (6), and the both ends of positioning rod (6) are respectively fixedly connected with the inside top surface and bottom surface of frame (1), the upper portion of the frame (1) is equipped with self-locking positive and negative rotation motor (5), and the output of self-locking positive and negative rotation motor (5) is connected with two-way screw lever (2) by shaft coupling, the inside of the frame (1) is provided with concave seat (7), and the inside of concave seat (7) is equipped with contact roller (8) by bearing, the lower portion of the sleeve plate (4) of upper group is equipped with two groups of concave frame (9), and the inside of two groups of the concave frame (9) is equipped with guide roller (10) by bearing, the upper portion of the sleeve plate (4) of lower group is slidably penetrated by two groups of T-shaped guide rod (11), and the upper end of two groups of the T-shaped guide rod (11) is equipped with mounting plate (12), and two groups of the mounting plate (12) are equipped with concave plate (13) between, the inside of the concave plate (13) is equipped with tensioning roller (14) by bearing, the lower portion of the sleeve plate (4) of lower group is fixedly penetrated by electric telescopic rod (15), and the telescopic end of electric telescopic rod (15) is equipped with lifting plate (16), the lower portion of the concave plate (13) and the upper portion of lifting plate (16) are equipped with lifting lug (17), and two groups of the lifting lug (17) are equipped with tension sensor (18) between, the lower portion of the sleeve plate (4) of lower group is equipped with concave block (19), the inside of the frame (1) is equipped with two groups of support plate (22), the both sides of the concave plate (13) are equipped with two groups of cross plate (20), and the same side two groups of the cross plate (20) are equipped with multiple groups of support roller (21) by bearing.

2. A tensioning device for impregnated canvas winding according to claim 1, characterized in that, The two-way screw lever (2) is threadedly engaged with the two groups of screw sleeves (3).

3. A tensioning device for impregnated canvas winding according to claim 1, characterized in that, The upper portion of the concave seat (7) is equipped with two groups of vertical rods (23), and the upper ends of the two groups of vertical rods (23) slidably penetrate the lower portion of the sleeve plate (4) of the upper group, the upper ends of the two groups of vertical rods (23) are equipped with limit plates (24), the upper portion of the sleeve plate (4) of the upper group is equipped with a protective tube (25) and a battery box (26), the opening of the protective tube (25) is provided with a sealing plug (28), the upper portion of the battery box (26) is equipped with an alarm (27), and the upper portion of the alarm (27) is equipped with a press switch.

4. A tensioning device for impregnated fabric winding according to claim 3, characterized in that, The inside of the battery box (26) is equipped with a storage battery, and the press switch is electrically connected with the storage battery and the alarm (27) through wires.

5. A tensioning device for impregnated fabric winding according to claim 3, characterized in that, The upper portion of the sealing plug (28) penetrates a breathable mesh (29).

6. A tensioning device for impregnated canvas winding according to claim 1, characterized in that, The upper portion of the frame (1) is equipped with a control panel and a controller, the control panel is electrically connected with the self-locking positive and negative rotation motor (5) through wires, and the controller is electrically connected with the electric telescopic rod (15) and the tension sensor (18) through wires.

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