Positioning device and automatic V-belt cutting machine thereof

Abstract

The utility model discloses a positioning device and an automatic V-belt cutting machine thereof. A positioning device comprises: a sliding plate; the positioning block and the sliding plate are fixedly arranged; the connecting rod is slidably connected with the middle of the positioning block; the pressing plate is fixedly connected with the connecting rod; the spring is arranged between the positioning block and the pressing plate; the first toothed bar is arranged on one side of the pressing plate; the gear is meshed with the toothed bar I; the rotating shaft is connected with the gear; the second toothed bar is meshed with the other side of the gear; and the cutter pad is fixedly connected with the toothed bar II. The positioning device is applied to the automatic V-belt cutting machine. The positioning device and the automatic V-belt cutting machine have the advantages that the cutter pad can be moved in the positioning process, and the fault rate and the design cost are reduced.

Description

Technical Field

[0001] The utility model relates to a positioning device and an automatic V-belt cutting machine thereof. Background Art

[0002] A cutting machine is a mechanical device used to cut materials. It can cut various raw materials such as rubber, fabric, leather, paper, plastic, etc. into specific shapes and sizes. In the production process of V-belts, the cutting machine is mainly used to cut the calendered rubber sheets into the required width and length for subsequent molding and vulcanization processes. The type and function of the cutting machine can vary depending on the specific application and cutting requirements.

[0003] Existing V-belts are generally made by first extruding a rubber sheet and cutting the rubber sheet into a rubber belt, and then cutting it into a suitable length by a cutting machine, and then vulcanizing and surface treating it to obtain a finished V-belt.

[0004] During the cutting process, when cutting the V-belt, the existing cutting machine generally needs to fix the rubber belt accordingly so that the position will not be shifted during cutting, so that the edge of the V-belt after cutting is flat and smooth, thereby improving the cutting effect.

[0005] However, the existing fixing method generally uses a cylinder with CNC technology to press and cut the rubber belt at the corresponding rubber belt length. During cutting, the knife needs to move up while the knife moves down, so that the contact position between the knife and the knife pad is flush with the conveying direction of the rubber belt, thereby preventing the rubber belt from shifting during cutting. The knife pad and rubber belt fixing both need to be powered by the cylinder, which places higher requirements on the program design precision of the two cylinders, and is prone to failures, resulting in problems in the cutting process. Utility Model Content

[0006] The utility model aims to provide a positioning device and an automatic V-belt cutting machine thereof. The positioning device and the automatic V-belt cutting machine thereof can simultaneously move the knife pad during the positioning process, thereby reducing the failure rate and the design cost.

[0007] The above technical objectives of the utility model are achieved through the following technical solutions:

[0008] A positioning device comprises: a sliding plate; a positioning block fixedly arranged on the sliding plate; a connecting rod slidingly connected to the middle part of the positioning block; a pressure plate fixedly connected to the connecting rod; a spring arranged between the positioning block and the pressure plate; a gear rod 1 arranged on one side of the pressure plate; a gear meshing with the gear rod 1; a rotating shaft connected to the gear; a gear rod 2 meshing with the other side of the gear; and a knife pad fixedly connected to the gear rod 2.

[0009] The utility model is further configured that: the knife pad and the pressing plate are operated simultaneously, and when the knife pad moves upward, the pressing plate moves downward simultaneously.

[0010] A V-belt automatic cutting machine comprises: a frame; a plurality of raw material trays arranged on one side of the frame; a workbench arranged on the frame; a positioning device as above arranged in the middle of the workbench; a mounting plate connected to one side of a sliding plate; columns arranged on both sides of the mounting plate and fixedly connected to the frame; a cutting cylinder arranged on the mounting plate; a cutting knife connected to the cutting cylinder; a driving cylinder connected to the bottom of a knife pad; a guide rail arranged on one side of the frame; a slide seat slidably connected to the guide rail; a clamping cylinder arranged on one side of the slide seat; and two oppositely arranged clamping claws connected to the clamping cylinder.

[0011] The utility model is further configured to include: a transmission belt fixedly passed through the slide seat; transmission wheels arranged at both ends of the transmission belt; and a driving motor connected to one of the transmission wheels.

[0012] The utility model is further configured as follows: a through slot is provided on the frame for the second gear rod to move up and down.

[0013] The utility model is further configured such that the positions of the knife pad and the workbench are flush with each other.

[0014] The utility model is further configured that: the clamping claws can move towards or in opposite directions under the action of the clamping cylinder.

[0015] In summary, the utility model has the following beneficial effects: the positioning device and the automatic V-belt cutting machine thereof can simultaneously move the knife pad during the positioning process, thereby reducing the failure rate and the design cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a structural schematic diagram of an embodiment;

[0017] Figure 2 It is a rear view structural schematic diagram of an embodiment;

[0018] Figure 3 for Figure 1 A partial view of

[0019] Figure 4 for Figure 3 Schematic diagram of the structure viewed from above.

[0020] Figure numerals: 1. frame; 2. raw material tray; 3. workbench; 4. pressure plate; 5. sliding plate; 6. mounting plate; 7. column; 8. cutting cylinder; 9. cutting knife; 10. knife pad; 11. driving cylinder; 12. guide rail; 13. slide seat; 14. clamping cylinder; 15. clamping claw; 16. transmission belt; 17. transmission wheel; 18. positioning block; 19. connecting rod; 20. spring; 21. gear rod 1; 22. gear; 23. rotating shaft; 24. gear rod 2; 25. driving motor. DETAILED DESCRIPTION

[0021] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "page", "bottom", "inside", "outside", "clockwise", "counterclockwise", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and 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, and therefore cannot be understood as a limitation on the present invention.

[0022] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Thus, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features.

[0023] In the description of the present utility model, "multiple" means two or more than two, unless otherwise clearly specified and specifically defined. In the present utility model, unless otherwise clearly specified and defined, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be the internal connection of two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to the specific circumstances.

[0024] The utility model is further described in detail below in conjunction with the accompanying drawings.

[0025] like Figure 1 , Figure 2 As shown, an automatic V-belt cutting machine includes a frame 1. A plurality of raw material trays 2 for unwinding rubber belts are arranged on one side of the frame 1. A plurality of rolls of rubber belts are wound on the raw material trays 2. A workbench 3 is arranged on one side of the frame 1 at the raw material tray 2. A pressing plate 4 is arranged in the middle of the workbench 3. The pressing plate 4 is slidably connected to a sliding plate 5. A mounting plate 6 is connected to one side of the sliding plate 5. Columns 7 are arranged on both sides of the mounting plate 6, and the columns 7 are fixedly connected to the frame 1.

[0026] A cutting cylinder 8 is provided on the mounting plate 6, and the cutting cylinder 8 passes through the mounting plate 6 and is connected to a cutter 9. Under the action of the cutting cylinder 8, the cutter 9 can slide up and down. Correspondingly, a knife pad 10 is provided below the cutter 9. A driving cylinder 11 is connected to the bottom of the knife pad 10. The driving cylinder 11 can drive the knife pad 10 to move up and down. During cutting, the knife pad 10 and the cutter 9 move toward each other, and finally the two abut against each other. At this time, the positions of the knife pad 10 and the workbench 3 are flush with each other, that is, consistent with the moving direction of the rubber belt, to prevent the position of the rubber belt from being offset when it is cut.

[0027] Correspondingly, a guide rail 12 is provided on one side of the frame 1. A slide seat 13 is slidably connected to the guide rail 12. A clamping cylinder 14 is provided on one side of the slide seat 13. The clamping cylinder 14 is connected to two oppositely arranged clamping jaws 15. The clamping jaws 15 can move toward or in opposite directions under the action of the clamping cylinder 14, so that the clamping jaws 15 can clamp the rubber belt or release the rubber belt.

[0028] Correspondingly, a transmission belt 16 is fixedly provided on the slide 13. Transmission wheels 17 are provided at both ends of the transmission belt 16. One of the transmission wheels 17 is connected to a driving motor 25 for controlling the rotation of the transmission wheel 17, so that the transmission belt 16 moves, thereby changing the position of the slide 13.

[0029] In the above process, the slide 13 moves to a position close to the cutter 9 under the action of the drive motor 25, and drives the clamping claw 15 to clamp and fix one end of the rubber belt through the clamping cylinder 14. After that, the drive motor 25 drives the slide 13 away from the cutter 9 to the other end. At this time, the rubber belt is stretched to a fixed length. The cutting cylinder 8 drives the cutter 9 to move downward, and the drive cylinder 11 drives the knife pad 10 to move upward, so that the rubber belt is cut and a fixed length of rubber belt is obtained.

[0030] like Figure 3 , Figure 4 As shown, the present application also provides a positioning device for fixing the position of the rubber belt when the rubber belt is cut to prevent the cutting position from shifting.

[0031] The positioning device includes a positioning block 18 fixedly arranged with the sliding plate 5. A connecting rod 19 is slidably connected to the middle of the positioning block 18. The connecting rod 19 is fixedly connected to the pressing plate 4. A spring 20 is arranged between the positioning block 18 and the pressing plate 4.

[0032] A gear rod 21 is provided on one side of the pressure plate 4, and a gear 22 is meshed with the gear rod 21. The gear 22 is connected to a rotating shaft 23. The rotating shaft 23 is connected to the frame 1 by a bearing. A gear rod 24 is meshed with the other side of the gear 22. The gear rod 24 is fixedly connected to the knife pad 10.

[0033] Correspondingly, the frame 1 is also provided with a through slot for the gear rod 24 to move up and down. The provision of the through slot can prevent the gear rod 24 from getting stuck when moving up and down.

[0034] When the rubber belt needs to be cut, the knife pad 10 moves up under the action of the driving cylinder 11. At this time, the gear bar 24 moves up, driving the gear 22 to rotate. The gear 22 rotates to make the gear bar 1 21 move down. The gear bar 1 21 moves down and drives the pressure plate 4 to move down, so that the pressure plate 4 can press on the rubber belt. At the same time, the cutter 9 moves down to cut the rubber belt.

[0035] Under the above setting, the operation of the knife pad 10 and the pressure plate 4 is carried out simultaneously. When the knife pad 10 moves up to cooperate with the cutting of the rubber belt, the pressure plate 4 moves down at the same time, thereby achieving the pressing and cutting process of the rubber belt. Compared with the prior art that uses a double cylinder to control the operation process of the pressure plate 4 and the knife pad 10, the positioning device of the present application has a low failure rate and a low design cost. When the driving cylinder 11 fails, the cutter 9 has no force point and cannot cut the rubber belt, so that the staff can discover the fault in time.

[0036] This specific embodiment is merely an explanation of the present invention and is not a limitation of the present invention. After reading this specification, those skilled in the art may make non-creative modifications to the present embodiment as needed, but such modifications are protected by patent law as long as they are within the scope of the claims of the present invention.

Claims

1. A positioning device, characterized in that: include: Sliding plate (5); a positioning block (18) fixedly arranged on the sliding plate (5); A connecting rod (19) slidably connected to the middle portion of the positioning block (18); A pressing plate (4) fixedly connected to the connecting rod (19); A spring (20) disposed between the positioning block (18) and the pressure plate (4); A gear rod (21) disposed on one side of the pressure plate (4); a gear (22) meshing with the gear rod 1 (21); a rotating shaft (23) connected to the gear (22); a second gear rod (24) meshing with the other side of the gear (22); A knife pad (10) is fixedly connected to the second gear rod (24).

2. The positioning device according to claim 1, characterized in that: The knife pad (10) and the pressing plate (4) operate simultaneously; when the knife pad (10) moves upward, the pressing plate (4) moves downward simultaneously.

3. A V-belt automatic cutting machine, characterized in that: include: Rack (1); A plurality of raw material trays (2) arranged on one side of the frame (1); A workbench (3) arranged on the frame (1); A positioning device as claimed in claim 1 or 2, arranged in the middle of the workbench (3); a mounting plate (6) connected to one side of the sliding plate (5); Columns (7) arranged on both sides of the mounting plate (6) and fixedly connected to the frame (1); A cutting cylinder (8) disposed on the mounting plate (6); a cutting knife (9) connected to the cutting cylinder (8); A driving cylinder (11) connected to the bottom of the knife pad (10); A guide rail (12) disposed on one side of the frame (1); A sliding seat (13) slidably connected to the guide rail (12); A clamping cylinder (14) disposed on one side of the slide seat (13); Two clamping jaws (15) are arranged opposite to each other and are connected to the clamping cylinder (14).

4. The automatic V-belt cutting machine according to claim 3, characterized in that: Also includes: A transmission belt (16) fixedly passed through the slide seat (13); Transmission wheels (17) arranged at both ends of the transmission belt (16); A drive motor (25) connected to one of the transmission wheels (17).

5. The automatic V-belt cutting machine according to claim 3, characterized in that: The frame (1) is provided with a through slot for the second gear rod (24) to move up and down.

6. The automatic V-belt cutting machine according to claim 3, characterized in that: The positions of the knife pad (10) and the workbench (3) are flush with each other.

7. The automatic V-belt cutting machine according to claim 3, characterized in that: The clamping jaws (15) can move towards or in opposite directions under the action of the clamping cylinder (14).

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