Roller double-end dotting machine
By combining a motor-driven transmission rod and a rubber roller, the problem of poor synchronization in existing dotting devices is solved, achieving uniformity and stability in dotting, simplifying the structure, and improving the adaptability and operating efficiency of the equipment.
Patent Information
- Application Number
- CN202520749005.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-21
- Publication Date
- 2026-02-06
- Estimated Expiration
- 2035-04-21
AI Technical Summary
Existing dotting devices typically use components such as electric actuators or cylinders to drive dotting needles for dotting operations, while simultaneously moving the material through rollers. This complex structure makes it difficult to ensure synchronization, resulting in uneven dotting during large-scale production.
The motor drives the transmission rod to rotate, which in turn drives the cross drive plate to move the lifting plate up and down. Combined with the rubber rollers clamping the leather and conveying it through friction, the airbags clean the dotting needle holes to ensure the uniformity and stability of the dotting.
It achieves uniformity and stability of dotting in large-scale production. The dotting needles are easy to insert and replace, avoiding channel blockage and improving the synchronization of operation and the adaptability of the equipment.
Smart Images
Figure CN223877744U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to a dotter technical field, especially in a roller double -end dotter. BACKGROUND
[0002] In the textile, leather processing and other industries, the flexible materials such as cloth, leather, etc. often need to be marked at specific positions in the subsequent manufacturing process to meet the process requirements such as pattern drawing, cutting positioning, sewing alignment, etc. In practical applications, the dotter usually needs the following technologies:
[0003] 1. Roller conveying mechanism: a roller made of rubber or polyurethane material is used, and the roller is driven to rotate by a motor to smoothly convey the cloth or leather on the workbench.
[0004] 2. Dotting mechanism: common dotting methods include inkjet dotting and mechanical needle dotting. Mechanical needle dotting uses a specially designed needle to punch a small hole on the cloth or leather as a mark, which is suitable for occasions with high durability requirements for marks, such as leather product positioning.
[0005] 3. Positioning and calibration mechanism: to ensure the accuracy of the dotting position, the device is equipped with a visual recognition system and a sensor.
[0006] The existing dotting device usually uses an electric push rod or a cylinder to push the dotting needle for dotting work, and at the same time, the leather is moved by a roller. The structure is relatively complex, driven by two power sources, and it is difficult to ensure synchronization. In large-scale production, the leather needs to be quickly dotted, and it is difficult to ensure the uniformity of dotting. INVENTION CONTENTS
[0007] In view of the shortcomings of the prior art, the utility model provides a roller double-end dotter to solve the technical problems of the existing dotting device, which usually uses an electric push rod or a cylinder to push the dotting needle for dotting work, and at the same time, the leather is moved by a roller. The structure is relatively complex, driven by two power sources, and it is difficult to ensure synchronization. In large-scale production, the leather needs to be quickly dotted, and it is difficult to ensure the uniformity of dotting.
[0008] To achieve the above purpose, the utility model is implemented by the following technical solutions:
[0009] A roller double-end dotter, comprising a workbench, a lifting plate slidably installed on the workbench, a transmission rod rotatably installed on the workbench, a cross drive disc symmetrically fixedly installed at both ends of the transmission rod for pushing the lifting plate, a motor fixedly installed on the workbench, a roller rotatably installed on the lifting plate for reducing friction, a first spring symmetrically installed on the lifting plate, a needle holder slidably installed symmetrically on the lifting plate, a dotting needle for dotting threadedly installed on the needle holder, and a threaded rod threadedly installed on the needle holder.
[0010] Preferably, the first rubber roller is rotatably installed on the workbench.
[0011] Preferably, a transmission belt wheel set is installed between the first rubber roller and the transmission rod.
[0012] Preferably, the roller frame is symmetrically slidably installed on the workbench.
[0013] Preferably, the second rubber roller is rotatably installed between the two roller frames.
[0014] Preferably, the second spring is installed on the roller frame.
[0015] Preferably, the air bag is fixedly installed on the workbench.
[0016] Preferably, the air guide pipe is installed between the air bag and the needle holder.
[0017] Compared with the prior art, the utility model has the following beneficial effects:
[0018] I. In use, the motor will drive the transmission rod to rotate through the gear set, the transmission rod drives the cross drive plate to rotate, the cross drive plate will push the lifting plate through the slope of itself when rotating, and the lifting plate will reciprocate up and down under the elastic force of the first spring, when the lifting plate slides down, the dotting needle can be used for dotting operation on the cloth or leather, at the same time, the transmission rod will drive the first rubber roller to rotate through the transmission belt wheel set, the second rubber roller is clamped from the upper and lower ends of the cloth or leather under the elastic force of the second spring, and the first rubber roller is clamped from the upper and lower ends of the cloth or leather, when the first rubber roller rotates, the cloth or leather can be moved on the workbench through the friction force, that is, the motor drives the first rubber roller to move the cloth or leather after starting, and drives the lifting plate to slide up and down to dot, which achieves the effect that the dots are uniform in mass production.
[0019] II. In the dotting process, the dotting needle has a slope, which can be more easily inserted into the cloth or leather, and ensures the smoothness of the dotting position, after the dotting needle is unscrewed, different sizes of dotting needles can be replaced, the position of the needle holder can be adjusted by unscrewing the threaded rod, in the process that the lifting plate slides up, the air bag will be extruded, the air in the air bag enters the needle holder along the air guide pipe, the air is discharged outward from the needle holder, which can avoid that the hole of the dotting needle is blocked, and the effect that the operation stability is improved is achieved. BRIEF DESCRIPTION OF DRAWINGS
[0020] The above description is only a summary of the technical scheme of the utility model, in order to more clearly understand the technical means of the utility model, and the content of the specification can be implemented, the following preferred embodiments of the utility model are described in detail in the following.
[0021] Figure 1 Figure 1 is a working table structure diagram of the present application;
[0022] Figure 2 Figure 2 is a transmission rod structure diagram of the present application;
[0023] Figure 3 Figure 3 is a lifting plate structure diagram of the present application;
[0024] Figure 4 Figure 4 is a working table cross-section structure diagram of the present application;
[0025] Figure 5 Figure 5 is a needle holder cross-section structure diagram of the present application.
[0026] Legend: 1, working table; 2, lifting plate; 3, transmission rod; 4, cross drive disc; 5, motor; 6, roller; 7, first spring; 8, needle holder; 9, dotting needle; 11, transmission pulley set; 12, first rubber roller; 13, roller frame; 14, second rubber roller; 15, second spring; 16, air bag; 17, air guide pipe; 18, threaded rod. DETAILED DESCRIPTION
[0027] The embodiment of the application provides a roller double-head dotting machine, effectively solves the technical problems that the existing dotting device usually adopts electric push rods or cylinders and the like to push dotting needles to perform dotting work, simultaneously moves leather materials through rollers, the structure is relatively complex, is driven by two power sources, and it is difficult to ensure synchronism, when large-scale production is performed, leather materials need to be quickly dotted, and it is difficult to ensure the uniformity of dotting, when the motor is started, the gear set drives the transmission rod to rotate, the transmission rod drives the cross driving disc to rotate, the cross driving disc pushes the lifting plate through the slope of the cross driving disc, the lifting plate reciprocates up and down through the elastic force of the first spring, when the lifting plate slides downward, the dotting needle can perform dotting work on the cloth or leather material, simultaneously, the transmission rod drives the first rubber roller to rotate through the transmission belt wheel set, the second rubber roller is clamped to the cloth or leather material from the upper end and the lower end through the elastic force of the second spring and the first rubber roller, when the first rubber roller rotates, the cloth or leather material is moved on the workbench through friction force, that is, when the motor is started, the first rubber roller drives the cloth or leather material to move, simultaneously drives the lifting plate to slide up and down to perform dotting, the effect that the cloth or leather material is dotted uniformly when large-scale production is performed is achieved, the dotting needle has a slope during the dotting process, the dotting needle can be more easily inserted into the cloth or leather material, the dotting position is ensured to be smooth, the dotting needle can be replaced with a dotting needle of different size after the dotting needle is screwed down, the position of the needle seat can be adjusted by unscrewing the threaded rod, during the process that the lifting plate slides upward, the air bag is extruded, air in the air bag enters the needle seat along the air guide pipe, air is discharged outward from the needle seat, material clamped in the dotting needle can be blown out, the hole of the dotting needle can be avoided to be blocked, and the effect that the operation stability is improved is achieved.
[0028] Embodiment
[0029] As Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5 indicate, the technical scheme in the embodiment of the application effectively solves the technical problems that the existing dotting device usually adopts electric push rods or cylinders and the like to push dotting needles to perform dotting work, simultaneously moves leather materials through rollers, the structure is relatively complex, is driven by two power sources, and it is difficult to ensure synchronism, when large-scale production is performed, leather materials need to be quickly dotted, and it is difficult to ensure the uniformity of dotting, and the general idea is as follows.
[0030] In view of the problems in the prior art, the utility model provides a roller double-head dotting machine, including workbench 1, lifting plate 2 is installed in workbench 1 slidingly, transmission rod 3 is installed in workbench 1 rotatably, the both ends of transmission rod 3 are fixedly installed with cross driving disc 4 for pushing lifting plate 2, motor 5 is fixedly installed in workbench 1.
[0031] A roller 6 is rotatably mounted on the lifting plate 2, and first springs 7 are symmetrically mounted on the lifting plate 2. A needle holder 8 is slidably mounted on the lifting plate 2, a dotting needle 9 for dotting is threadedly mounted on the needle holder 8, a threaded rod 18 is threadedly mounted on the needle holder 8, and a first rubber roller 12 is rotatably mounted on the workbench 1.
[0032] A transmission belt wheel set 11 is mounted between the first rubber roller 12 and the transmission rod 3, roller frame 13 is slidably mounted on the workbench 1, and a second rubber roller 14 is rotatably mounted between the two roller frames 13. The second spring 15 is mounted on the roller frame 13, the air bag 16 is fixedly mounted on the workbench 1, and the air guide pipe 17 is mounted between the air bag 16 and the needle holder 8.
[0033] The workbench 1 is the main structure of the roller double-head dotting machine, provides a mounting base and support for other components, is the carrier of the entire device operation, ensures the relative positional relationship between components, and cooperates to complete the dotting work.
[0034] The lifting plate 2 is slidably mounted on the workbench 1, and through the pushing of the cross drive disc 4 and the elastic force of the first spring 7, it realizes up-down reciprocating motion, and then drives the needle holder 8 and the dotting needle 9 mounted thereon to move up and down, so as to complete the dotting action on the cloth or leather. At the same time, the roller 6 rotatably mounted on the lifting plate 2 can reduce the friction resistance in the movement process, so that the movement is more smooth.
[0035] The transmission rod 3 is rotatably mounted on the workbench 1 and is a key component for power transmission. After being driven to rotate by the motor 5 through the gear set, it drives the two cross drive discs 4 at both ends to rotate, thereby pushing the lifting plate 2 to make up-down reciprocating motion. In addition, the transmission rod 3 also drives the first rubber roller 12 to rotate through the transmission belt wheel set 11, so as to realize the cooperation of cloth or leather conveying and dotting action.
[0036] The cross drive disc 4 is symmetrically fixedly mounted at both ends of the transmission rod 3, and when it rotates, it pushes the lifting plate 2 by using its own slope, which is a direct power transmission component for promoting the lifting plate 2 to move up and down. Through synchronous rotation with the transmission rod 3, it provides driving force for the movement of the lifting plate 2.
[0037] The roller 6 is rotatably mounted on the lifting plate 2, and its role is to reduce the friction between the lifting plate 2 and other components during sliding, reduce energy loss, improve equipment operation efficiency, reduce component wear, and prolong equipment service life.
[0038] The first spring 7 is symmetrically mounted on the lifting plate 2, cooperates with the pushing action of the cross drive disc 4, and uses its own elastic force to enable the lifting plate 2 to stably move up and down, so as to ensure the regularity and continuity of the dotting action.
[0039] Needle seat 8: symmetrically slidingly installed on the lifting plate 2, its position can be adjusted by loosening the threaded rod 18, so as to change the dotting position of the dotting needle 9, at the same time, the needle seat 8 serves as the installation carrier of the dotting needle 9, and moves up and down under the driving of the lifting plate 2, so that the dotting needle 9 completes the dotting operation, in addition, the needle seat 8 also participates in the blowing cleaning structure, when the lifting plate 2 slides upward to extrude the air bag 16, air enters the needle seat 8 through the air guide pipe 17 and is discharged from the dotting needle 9, which is used for cleaning the materials stuck in the hole of the dotting needle 9;
[0040] Dotting needle 9: threadedly installed on the needle seat 8, which is directly used for dotting the cloth or leather, and has a bevel design, which makes it easier to insert into the cloth or leather, ensures the smoothness of the dotting position, and can be replaced with different sizes by unscrewing, so as to adapt to the dotting requirements of different cloths or leathers;
[0041] Transmission pulley set 11: installed between the first rubber roller 12 and the transmission rod 3, which plays a role in transmitting power, and transmits the rotary motion of the transmission rod 3 to the first rubber roller 12, so that the first rubber roller 12 can rotate with the rotation of the transmission rod 3, and then realizes the pulling and conveying of the cloth or leather, ensuring the synchronization of dotting and conveying actions;
[0042] First rubber roller 12: rotatably installed on the workbench 1, which rotates under the driving of the transmission pulley set 11, cooperates with the second rubber roller 14 and the second spring 15 to clamp the cloth or leather from both ends, and pulls the cloth or leather to move on the workbench 1 through friction, realizing the conveying of the cloth or leather and ensuring the uniformity of dotting pitch;
[0043] Roller frame 13: symmetrically slidingly installed on the workbench 1, which provides installation support for the second rubber roller 14, and the second spring 15 installed thereon participates in the clamping process of the cloth or leather, and the second rubber roller 14 cooperates with the first rubber roller 12 better through the elastic force of the second spring 15, so as to stably clamp the cloth or leather;
[0044] Second rubber roller 14: rotatably installed between the two roller frames 13, which cooperates with the first rubber roller 12 to clamp the cloth or leather from both ends under the action of the elastic force of the second spring 15, and pulls the cloth or leather to move when the first rubber roller 12 rotates, so as to assist in the stable conveying of the cloth or leather;
[0045] Second spring 15: installed on the roller frame 13, which makes the second rubber roller 14 better adhere to the cloth or leather with the elastic force of itself, so as to enhance the clamping force of the cloth or leather, ensure that the cloth or leather does not slip during conveying, and ensure the accuracy of the dotting pitch;
[0046] Airbag 16: Fixedly installed on the workbench 1. When the lifting plate 2 slides upward, it will compress the airbag. Under the compression, the internal air enters the needle holder 8 along the air guide tube 17, providing an air source for cleaning the material stuck in the hole of the dotting needle 9, realizing the automatic cleaning function and preventing the dotting needle 9 from being blocked.
[0047] Air duct 17: Connects the air bag 16 and the needle seat 8. It is a channel for air circulation, guiding the air generated by the compression of the air bag 16 to the needle seat 8, and then expelling it from the injection needle 9 to complete the cleaning of the injection needle 9 channel.
[0048] Threaded rod 18: It is threaded onto the needle holder 8. Loosening it allows the needle holder 8 to slide and adjust its position on the lifting plate 2, thereby adjusting the dotting position of the dotting needle 9 and increasing the flexibility and adaptability of the dotting position of the equipment.
[0049] Working principle:
[0050] In the first step, when in use, after the motor 5 starts, it will drive the transmission rod 3 to rotate through the gear set. The transmission rod 3 drives the cross drive disc 4 to rotate. When the cross drive disc 4 rotates, it will push the lifting plate 2 through its own inclined surface. With the elastic force of the first spring 7, the lifting plate 2 will move up and down reciprocally. When the lifting plate 2 slides down, the dotting needle 9 can be used to dot the fabric or leather. At the same time, the transmission rod 3 will drive the first rubber roller 12 to rotate through the transmission pulley set 11. Under the elastic force of the second spring 15, the second rubber roller 14 will work with the first rubber roller 12 to clamp the fabric or leather from the top and bottom ends. When the first rubber roller 12 rotates, the friction will pull the fabric or leather to move on the worktable 1. That is, after the motor 5 starts, it drives the first rubber roller 12 to move the fabric or leather, and at the same time drives the lifting plate 2 to slide up and down to dot, ensuring that the spacing between each dot is equal.
[0051] The second step involves the dotting process. The dotting needle 9 has an angled surface, which makes it easier to insert into the fabric or leather, ensuring a smooth dotting position. After unscrewing the dotting needle 9, different sizes of dotting needle 9 can be replaced. Loosening the threaded rod 18 allows for sliding adjustment of the position of the needle holder 8. As the lifting plate 2 slides upward, it will compress the airbag 16, causing the air in the airbag 16 to enter the needle holder 8 along the air guide tube 17. The needle holder 8 then expels the air, which can blow out the material stuck in the dotting needle 9, thus preventing the holes of the dotting needle 9 from being blocked.
[0052] Finally, it should be noted that: apparently, the above embodiments are merely examples for clearly illustrating the utility model, and are not limited to the implementation. For ordinary skilled persons in the art, other different forms of changes or variations can be made on the basis of the above description. Here, it is not necessary and impossible to exhaust all the implementation. The obvious changes or variations derived therefrom are still within the protection scope of the utility model.
Claims
1. A cylinder double-headed perforator comprising a worktable (1), characterized in that, The workbench (1) is provided with a lifting plate (2) slidingly installed thereon, a transmission rod (3) rotatably installed on the workbench (1), cross drive discs (4) symmetrically and fixedly installed at both ends of the transmission rod (3) and used for pushing the lifting plate (2), a motor (5) fixedly installed on the workbench (1), rollers (6) rotatably installed on the lifting plate (2) and used for reducing friction, first springs (7) symmetrically installed on the lifting plate (2), needle holders (8) symmetrically and slidingly installed on the lifting plate (2), dotting needles (9) screwedly installed on the needle holders (8) and used for dotting, and threaded rods (18) screwedly installed on the needle holders (8).
2. A cylinder double-headed dotter as claimed in claim 1, characterized in that The workbench (1) is provided with first rubber rollers (12) rotatably installed thereon.
3. A cylinder double-headed dotter as claimed in claim 2, characterized in that Transmission belt wheel sets (11) are installed between the first rubber rollers (12) and the transmission rod (3).
4. A cylinder double-headed dotter as claimed in claim 1, characterized in that Roller holders (13) are symmetrically and slidingly installed on the workbench (1).
5. A cylinder double-headed dotter as claimed in claim 4, characterized in that Second rubber rollers (14) are rotatably installed between the two roller holders (13).
6. A cylinder double-headed dotter as claimed in claim 4, characterized in that Second springs (15) are installed on the roller holders (13).
7. A cylinder double-headed dotter as claimed in claim 1, characterized in that An air bag (16) is fixedly installed on the workbench (1).
8. A cylinder double-headed dotter as claimed in claim 7, characterized in that Air guide pipes (17) are installed between the air bag (16) and the needle holders (8).