CN216806018U - Automatic coating equipment - Google Patents

Abstract

The application discloses an automatic film coating device, including a film supply device, a guide device, a film pulling device, a film pressing device, a film cutting device, a product box and a conveying device. The film supply device is provided with a first film supply device and a second film supply device. The first film supply device provides an upper film, and the second film supply device provides a lower film; the guiding device includes a guide rail, which guides the lower film and places the film. The product on the lower film and the upper film; the film pulling device is arranged at one end of the guide rail to pull the upper film and the lower film to move along the guide rail; the film pressing device is located between the film pulling device and the film supply device to press Upper film, product and lower film; film cutting device is located between the film pulling device and the film pressing device to cut the upper film and lower film; the product box is used to store the wrapped product; the handling device includes a transfer mechanism And the reclaiming mechanism, the transfer mechanism drives the reclaiming mechanism to transfer the coated product to the product box. This enables the process to continue and accelerates production efficiency.

Description

Automatic coating equipment

technical field

The present application relates to the technical field of coating, in particular to an automatic coating equipment.

Background technique

In order to avoid damage to the performance and appearance of the product during transportation, storage, etc., the product is usually coated to protect the product. The traditional coating operation adopts manual film pulling, laminating and cutting, which is labor-intensive and requires a lot of manpower. At the same time, workers are easily fatigued after long-term work, which makes it difficult to guarantee the quality and efficiency of the coating. Moreover, due to the different proficiency of workers, the quality and efficiency of the coating are quite different. It can be seen that the manpower input of the artificial coating is large, the labor intensity of the workers is extremely high, the quality of the coating is unstable and the efficiency is low.

Utility model content

The present application aims to solve at least one of the technical problems existing in the prior art. To this end, the present application proposes an automatic coating equipment, which can improve quality, improve efficiency, and save manpower.

The automatic film coating equipment according to the embodiments of the present application includes a film supply device, a guide device, a film pulling device, a film pressing device, a film cutting device, a product box and a conveying device. There are two film supply devices, which are respectively a first film supply device and a second film supply device. The first film supply device is used to provide the upper film, and the second film supply device is used to provide the lower film; the guiding device includes Guide rail, the guide rail is used to guide the lower film, the products placed on the lower film and the upper film; the film pulling device is arranged at one end of the guide rail to pull the upper film and the lower film to move along the guide rail; the film pressing device is arranged at One side of the guide rail and located between the film pulling device and the film supplying device, it is used for pressing the upper film, the product and the lower film; the film cutting device is arranged on one side of the guide rail, and is located between the film pulling device and the film pressing device. The product box is arranged on one side of the film pulling device to store the wrapped products; the conveying device is arranged at one side of the guide rail, and the conveying device includes a transfer mechanism and The reclaiming mechanism, the transfer mechanism is used to drive the reclaiming mechanism to drive and drive the products that have been coated from between the guide rail and the film pulling device to the product box.

The automatic coating device according to the embodiment of the present application has at least the following beneficial effects:

By setting the first film supply device and the second film supply device to provide the product with the upper coating film and the lower coating film respectively, the guiding device guides and positions the upper coating film and the lower coating film, and at the same time cooperates with the lamination device, so that the surface of the product and the protective film are more closely related. Lamination, the film pulling device provides traction force to the upper film and the lower film so that the film can be continuously carried out, and the handling device is used to place the product on the lower film and transfer the finished product to the product box to realize automatic Loading and unloading. The entire coating workflow saves manpower, and the process continues, accelerating production efficiency, improving quality, and meeting high-tech production requirements. Moreover, the handling device and the guide rail have multiple purposes, which makes the utilization rate of the whole equipment higher and the structure more compact.

According to the automatic coating equipment of some embodiments of the present application, the handling device further includes a first driving mechanism, the first driving mechanism is connected with the transfer mechanism, and the first driving mechanism is used to drive the reclaiming mechanism to move up and down.

According to the automatic film coating equipment according to some embodiments of the present application, the guide device further includes a first guide shaft and a second guide shaft, the first guide shaft is disposed above the guide rail, and is used to guide the upper film to be directly above the guide rail, and the second guide shaft The shaft is arranged at one end of the guide rail away from the film pulling device, and is used for guiding the lower film to the surface of the guide rail. The length directions of the first guide shaft and the second guide shaft are consistent with the width direction of the guide rail.

According to the automatic film coating equipment according to some embodiments of the present application, the first film supply device is arranged above the guide rail, the second film supply device is arranged at an end of the guide rail away from the film pulling device, and the first guide shaft is located at the first film supply device and the guide rail, the second guide shaft is located between the second film supply device and the guide rail.

According to the automatic coating equipment according to some embodiments of the present application, the film pulling device includes a clamping mechanism and a second driving mechanism, the clamping mechanism is close to the end of the guide rail, and is used for clamping the upper and lower coating films on the guide rail, and the first Two driving mechanisms are used to drive the clamping mechanism to move along the length direction of the guide rail.

According to the automatic coating equipment of some embodiments of the present application, the film cutting device includes a third driving mechanism and a cutter, and the third driving mechanism is used for driving the cutter to cut the upper coating film and the lower coating film.

According to the automatic film coating equipment according to some embodiments of the present application, the film pressing device includes a fourth driving mechanism and a pressing plate, the pressing plate is located directly above the guide rail, and the fourth driving mechanism is used to drive the pressing plate to cooperate with the guide rail to press the upper film, the product and the lower film. envelope.

The automatic coating equipment according to some embodiments of the present application further includes a product positioning jig. The product positioning jig is arranged on one side of the guide rail and is located within the moving range of the reclaiming mechanism. The positioning jig includes a product tray, a tray bracket, Rotating mechanism and connecting rod, the product tray is placed on the tray support, one end of the connecting rod is connected to the rotating mechanism, and the other end is connected to the product tray. The rotating mechanism can drive the connecting rod to rotate, so as to drive the product tray on the tray support and the guide rail to approach the second mold supply device Turn over between one end of the coating to realize the feeding of the product to be coated to the lower coating.

According to the automatic film coating equipment of some embodiments of the present application, the film supply device includes a fixed shaft, a spring, a stopper and a fixed bracket, the fixed shaft is connected to the fixed bracket, and an end away from the fixed bracket is provided with a fixed piece, and the stopper Both the spring and the spring are sleeved on the fixed shaft, and the limiting piece is located between the fixing bracket and the fixing piece, the spring is located between the limiting piece and the fixing piece, and the film roll material is placed between the limiting piece and the fixing bracket.

According to the automatic coating equipment of some embodiments of the present application, there are several stoppers, and adjacent stoppers are set at a certain distance to place the wrapping material.

Additional aspects and advantages of the present application will be set forth, in part, from the following description, and in part will become apparent from the following description, or may be learned by practice of the present application.

Description of drawings

The above and/or additional aspects and advantages of the present application will become apparent and readily understood from the following description of embodiments in conjunction with the accompanying drawings, wherein:

1 is a schematic structural diagram of an automatic coating device according to an embodiment of the application;

FIG. 2 is a schematic structural diagram of the automatic coating equipment without a rack in FIG. 1;

Fig. 3 is the structural schematic diagram of another angle of view of Fig. 2 (excluding the handling device and the product box);

Fig. 4 is the enlarged view of A in Fig. 3;

Fig. 5 is the enlarged view of B in Fig. 3;

FIG. 6 is a schematic structural diagram of FIG. 2 from another perspective.

in:

The first film supply device 100a, the second film supply device 100b, the fixed shaft 110, the fixed part 111, the spring 120, the limiter 130, the fixed bracket 140, the guide rail 210, the feeding part 211, the lamination part 212, the first guide Shaft 220, second guide shaft 230, film pulling device 300, second driving mechanism 310, clamping mechanism 320, film pressing device 400, fourth driving mechanism 410, pressing plate 420, film cutting device 500, third driving mechanism 510, Cutter 520 , product box 600 , conveying device 700 , transfer mechanism 710 , reclaiming mechanism 720 , first driving mechanism 730 , product positioning jig 800 , product tray 810 , tray support 820 , rotating mechanism 830 , and connecting rod 840 .

Detailed ways

Embodiments of the present application are described in detail below, examples of which are illustrated in the accompanying drawings, wherein the same or similar reference numerals refer to the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present application, but should not be construed as a limitation on the present application.

In the description of this application, it should be understood that the orientation or positional relationship indicated in relation to the orientation description, such as up, down, left, right, front, rear, etc., is based on the orientation or positional relationship shown in the accompanying drawings, only For the convenience of describing the present application and simplifying the description, it is not indicated or implied that the referred device or element must have a particular orientation, be constructed and operate in a particular orientation, and therefore should not be construed as a limitation of the present application.

In the description of this application, if the first and second are described only for the purpose of distinguishing technical features, they should not be understood as indicating or implying relative importance or implicitly indicating the number of indicated technical features or implicitly indicating The order of the indicated technical features.

In the description of this application, unless otherwise clearly defined, terms such as setting, installation, and connection should be understood in a broad sense, and those skilled in the art can reasonably determine the specific meanings of the above terms in this application in combination with the specific content of the technical solution.

The automatic coating equipment according to the embodiment of the present application will be described below with reference to FIG. 1 to FIG. 5 .

1 and 2 , the automatic film coating equipment of this embodiment includes a film supply device, a guide device, a film pulling device 300 , a laminating device 400 , a film cutting device 500 , a product box 600 and a conveying device 700 . There are two film supply devices, namely a first film supply device 100a and a second film supply device 100b, the first film supply device 100a is used to provide the upper film, and the second film supply device 100b is used to provide the lower film The guide device includes a guide rail 210, the guide rail 210 is used to carry and guide the lower film, the product placed on the lower film and the upper film; the film pulling device 300 is arranged at one end of the guide rail 210 for pulling the upper film and the lower film The film moves along the guide rail 210; the film pressing device 400 is arranged on one side of the guide rail 210, and is located between the film pulling device 300 and the film supplying device, for pressing the upper film, the product and the lower film; the film cutting device 500 is arranged on the One side of the guide rail 210 is located between the film pulling device 300 and the film laminating device 400 for cutting the upper film and the lower film; the product box 600 is arranged on one side of the film pulling device 300 for storing the film after the film The conveying device 700 is arranged on one side of the guide rail 210, and the conveying device 700 includes a transfer mechanism 710 and a reclaiming mechanism 720. The transfer mechanism 710 is used to drive the reclaiming mechanism 720 to drive the coated product from the guide rail 210 to the reclaiming mechanism 720. Between the film pulling device 300 and the product box 600 .

By setting the first film supplying device 100a and the second film supplying device 100b to provide the product with the upper coating and the lower coating respectively, the guiding device guides the positioning of the upper coating and the lower coating, and at the same time cooperates with the laminating device 400 so that the surface of the product is in contact with the product. The protective film fits better, the pulling device 300 provides traction for the upper and lower envelopes so that the wrapping work can continue, and the handling device 700 is used to place the product on the lower envelope and transfer the finished product to the The product box 600 realizes automatic loading and unloading. The entire coating workflow saves manpower, and the process continues, accelerating production efficiency, improving quality, and meeting high-tech production requirements. In addition, the conveying device 700 and the guide rail 210 have multiple purposes, so that the utilization rate of the entire equipment is higher and the structure is more compact.

3, specifically, the guide rail 210 is used to carry the lower film and products, the guide rail 210 is divided into a loading part 211 and a lamination part 212, the loading part 211 is close to the second film supply device 100b, and is used for placing the conveying device 700 Shipped product to be coated. The lamination part 212 is close to the lamination device 300 and is located directly under the lamination device 400 , and a limiting plate is arranged above the lamination part 212 to limit the positions of the lower film, the product and the upper film. And the limiting plate is provided with a plurality of through holes to correspond to the positions of the products between the lower envelope and the upper envelope, and the lamination device 400 can be inserted through the through holes to the lower envelope, the upper envelope and the products between them. Make precise pressing.

It can be understood that the conveying device 700 further includes a first driving mechanism 730, the first driving mechanism 730 is connected with the transfer mechanism 710, and the first driving mechanism 730 is used to drive the reclaiming mechanism 720 to move up and down. 1 and 2 , specifically, the transfer mechanism 710 is provided on the frame, the first driving mechanism 730 is provided on the transfer mechanism 710 , and the reclaiming mechanism 720 is provided on the first driving mechanism 730 . The transfer mechanism 710 is a multi-joint rotating bracket to drive the first driving mechanism 730 and the reclaiming mechanism 720 to move in any direction in the plane. The first driving mechanism 730 is driven by a cylinder to drive the reclaiming mechanism 720 to move up and down. The transfer mechanism 710 cooperates with the first driving mechanism 730 to drive the reclaiming mechanism 720 to any position in the space, so that the reclaiming mechanism 720 can drive the product to the end of the guide rail 210 close to the second film supplying device 100b, or drive the finished film The product is from between the other end of the guide rail 210 and the film pulling device 300 to the product box 600 .

Referring to FIG. 2 , specifically, the reclaiming mechanism 720 is a pneumatic finger, and the parallel jaws of the pneumatic finger are used to clamp the product. It can be understood that the reclaiming mechanism 720 may also be a vacuum suction cup or an iron suction matched with a magnetic product, or the like.

It can be understood that the guide device further includes a first guide shaft 220 and a second guide shaft 230 . The first guide shaft 220 is arranged above the guide rail 210 and is used to guide the upper envelope to just above the guide rail 210 . The second guide shaft 230 It is arranged at one end of the guide rail 210 away from the film pulling device 300 , and is used to guide the lower film to the surface of the guide rail 210 . The guide shaft can not only guide the moving direction of the envelope, but also improve the convenience of control during the movement of the envelope, and better adjust the tension state during the movement of the envelope, so as to improve the smoothness of the movement.

It can be understood that the first film supply device 100a is disposed above the guide rail 210, the second film supply device 100b is disposed at the end of the guide rail 210 away from the film pulling device 300, and the first guide shaft 220 is located at the first film supply device 100a Between the guide rail 210 , the second guide shaft 230 is located between the second film supply device 100 b and the guide rail 210 .

3 and 5, specifically, the first film feeding device 100a is located above the first guide shaft 220, and the first guide shaft 220 is located above between the feeding part 211 and the laminating part 212 of the guide rail 210 to guide The upper envelope enters between the limiting plate and the lamination portion 212 of the guide rail 210 . The second guide shafts 230 are located between the second film supply devices 100b to guide the lower film to the upper surface of the guide rail 210 .

It can be understood that the film pulling device 300 includes a clamping mechanism 320 and a second driving mechanism 310. The clamping mechanism 320 is close to the end of the guide rail 210 and is used to clamp the upper and lower envelopes on the guide rail 210. The second The driving mechanism 310 is used for driving the clamping mechanism 320 to move along the length direction of the guide rail 210 .

It can be understood that the film cutting device 500 includes a third driving mechanism 510 and a cutting knife 520, and the third driving mechanism 510 is used for driving the cutting knife 520 to cut the upper envelope and the lower envelope.

2 , 3 and 4 , specifically, after the lower film, the product and the upper film are pressed by the film pressing device 400 , they are clamped by the clamping mechanism 320 and moved under the driving of the second driving mechanism 310 At the same time, the lower film, the product and the upper film to be pressed are pulled to the bottom of the film pressing device 400, the film pressing device 400 works to press them, and the third driving mechanism 510 of the film cutting mechanism The driving cutter 520 of the 100 moves down to cut the upper and lower coatings, and the conveying device 700 transfers the coated product to the product box 600 . The clamping mechanism 320 approaches the guide rail 210 again, and clamps the upper and lower envelopes. The coating is automatically completed in this cycle, so that the labor intensity of workers can be greatly reduced, and the productivity is high.

It can be understood that the film pressing device 400 includes a fourth driving mechanism 410 and a pressing plate 420, the pressing plate 420 is located directly above the guide rail 210, and the fourth driving mechanism 410 is used to drive the pressing plate 420 to cooperate with the guide rail 210 to press the upper film, products and lower envelope. The pressing plate 420 cooperates with the guide rail 210 to compress the upper film, the product and the lower film, so that the structure of the pressing device is simpler, so that the structure of the whole equipment is more compact and occupies less space. 3 and FIG. 4 , the pressing plate 420 is provided with several pressing posts, and the positions, shapes and sizes of the pressing posts are adapted to the through holes opened by the limiting plate above the lamination part 212 . Through holes, and compress the product and the film, so that the lamination process is more accurate, and the product and the film fit better.

It can be understood that, the automatic coating equipment of this embodiment further includes a product positioning fixture 800, which is arranged on one side of the guide rail 210 and is located within the moving range of the reclaiming mechanism 720, and the positioning fixture 800 is located. It includes a product tray 810, a tray support 820, a rotating mechanism 830 and a connecting rod 840. The product tray 810 is placed on the tray support 820. One end of the connecting rod 840 is connected to the rotating mechanism 830, and the other end is connected to the product tray 810. The rotating mechanism 830 drives the connecting rod 840. Rotate to drive the product tray 810 to turn over between the tray bracket 820 and the end of the guide rail 210 close to the second mold supply device 100b, so as to realize the feeding of the product to be coated to the lower coating.

2 and 5, specifically, the product tray 810 is used to place the product to be coated, the robot or worker places the product to be coated on the product tray 810, the reclaiming mechanism 720 is in the transfer mechanism 710 and the first drive mechanism 730 Under the driving of the device, the product to be coated is clamped and placed on the feeding part 211 .

6, it can be understood that the connecting rod 840 can also be driven to rotate by the rotating mechanism 830, thereby driving the product tray 810 to turn over between the tray bracket 820 and the loading part 211 of the guide rail 210, so as to realize the loading of the product to be coated. material. When the upper surface of the product in the product tray 810 is relatively flat, the upper surface of the product to be coated is contacted with the lower coating by inversion, so that the product can smoothly follow the movement of the lower coating to improve the quality of the product coating.

It can be understood that the film supply device includes a fixed shaft 110, a spring 120, a limiter 130 and a fixed bracket 140. The fixed shaft 110 is connected to the fixed bracket 140, and one end away from the fixed bracket 140 is provided with a fixed piece 111, which limits the The member 130 and the spring 120 are both sleeved on the fixed shaft 110, the limiting member 130 is located between the fixing bracket 140 and the fixing member 111, the spring 120 is located between the limiting member 130 and the fixing member 111, and the limiting member 130 is connected to the fixing member 111. Between the brackets 140 is used to place the wrapping web.

It can be understood that there are several limiting members 130, and adjacent limiting members 130 are arranged at a certain distance, so as to place the wrapping material.

3 and 5 , specifically, the fixing shaft 110 is keyed to the fixing bracket 140 , the fixing member 111 and the limiting member 130 , and there are two limiting members 130 , so that the film feeding device can simultaneously cover two rolls of film. Coiled material, and the two columns of products are coated at the same time, which improves the coating efficiency. The spring 120 is arranged between the limiting member 130 and the fixing member 111, and plays the role of shock absorption and buffering, and improves the stability of the wrapping roll material during the rotation process. At the same time, the stretchability of the spring 120 can be used to adjust the distance between the limiters 130 and between the limiters 130 and the fixing member 111 according to the width of the wrapping material, so as to adapt to different widths of the wrapping material, thereby Realize the coating of different products and improve the versatility of the equipment.

Specifically, the working principle of the automatic coating equipment: the lower coating on the second film supplying device 100b is guided to the upper surface of the guide rail 210 by the second guide shaft 230, and passes through the guide rail 210 and the limit plate, and is pulled To the clamping mechanism 320, the upper film on the first film supply device 100a is guided to between the guide rail 210 and the limiting plate through the first guide shaft 220, and pulled to the clamping mechanism 320 and the lower film to fit. The worker or manipulator places the product to be coated on the product tray 810, and for the product that needs to be turned over, the rotating mechanism 830 of the coated product drives the connecting rod 840 to rotate, so as to drive the product tray 810 on the tray bracket 820 and the feeding part of the guide rail 210. 211 The upper surface of the lower coating is turned over to realize the feeding of the product to be coated. For products that do not need to be turned over, the conveying device 700 clamps the product to be coated and transfers it to the lower coating on the upper surface of the feeding portion 211 of the guide rail 210 . The film pulling device 300 pulls the upper film and the lower film to move, thereby driving the product to be covered to move. When the product to be covered passes through the film pressing device 400, the pressing plate 420 moves downward under the action of the second driving mechanism 310 to Carry out lamination work. The film pulling device 300 continues to pull the upper film and the lower film. When the laminated product passes through the film cutting device 500, the cutter 520 moves downward under the action of the third driving mechanism 510 to cut the upper film and the lower film. At the same time, another product to be coated moves to the laminating device 400, and the pressing plate 420 moves downward under the action of the second driving mechanism 310 to perform the laminating operation. Then, the handling device 700 clamps the coated product and transfers it to the product box 600 . The clamping mechanism 320 moves close to the guide rail 210, and clamps and pulls the upper envelope and the lower envelope to work cyclically.

Although the embodiments of the present application have been shown and described, it will be understood by those of ordinary skill in the art that various changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the present application, The scope of the application is defined by the claims and their equivalents.

Claims (10)

1. an automatic coating equipment, is characterized in that, comprises: There are two film supply devices, namely a first film supply device and a second film supply device, the first film supply device is used to provide the upper film, and the second film supply device is used to provide the lower film ; a guiding device, comprising a guide rail for guiding the lower envelope, the product placed on the lower envelope and the upper envelope; a film pulling device, arranged at one end of the guide rail, for pulling the upper film and the lower film to move along the guide rail; a film pressing device, arranged on one side of the guide rail and between the film pulling device and the film supplying device, for pressing the upper film, the product and the lower film; a film cutting device, arranged on one side of the guide rail, and located between the film pulling device and the film pressing device, for cutting the upper envelope and the lower envelope; A product box, arranged on one side of the film pulling device, is used to store the wrapped product; A conveying device is arranged on one side of the guide rail, the conveying device includes a transfer mechanism and a reclaiming mechanism, the transfer mechanism is used to drive the reclaiming mechanism to drive the coated products from the guide rail and the Transfer to the product box between film pulling devices. 2 . The automatic coating equipment according to claim 1 , wherein the conveying device further comprises a first driving mechanism, the first driving mechanism is connected with the transfer mechanism, and the first driving mechanism is used for Drive the reclaiming mechanism to move up and down. 3. The automatic coating equipment according to claim 1, wherein the guide device further comprises a first guide shaft and a second guide shaft, and the first guide shaft is arranged above the guide rail for The upper film is guided directly above the guide rail, and the second guide shaft is arranged at one end of the guide rail away from the film pulling device, and is used to guide the lower film to the surface of the guide rail. The length direction of the first guide shaft and the second guide shaft is consistent with the width direction of the guide rail. 4 . The automatic film coating equipment according to claim 3 , wherein the first film supply device is arranged above the guide rail, and the second film supply device is arranged on the guide rail away from the pulling film. 5 . At one end of the device, the first guide shaft is located between the first film supply device and the guide rail, and the second guide shaft is located between the second film supply device and the guide rail. 5. The automatic coating equipment according to claim 1, wherein the film pulling device comprises a clamping mechanism and a second driving mechanism, the clamping mechanism is close to the end of the guide rail and is used for clamping The upper envelope and the lower envelope on the guide rail, the second driving mechanism is used to drive the clamping mechanism to move along the length direction of the guide rail. 6 . The automatic coating equipment according to claim 1 , wherein the film cutting device comprises a third driving mechanism and a cutting knife, and the third driving mechanism is used for driving the cutting knife to cut off the upper bag. 7 . membrane and the lower envelope. 7 . The automatic film coating equipment according to claim 1 , wherein the film pressing device comprises a fourth driving mechanism and a pressing plate, the pressing plate is located just above the guide rail, and the fourth driving mechanism is used for The pressing plate is driven to cooperate with the guide rail to press the upper envelope, the product and the lower envelope. 8 . The automatic coating equipment according to claim 1 , further comprising a product positioning jig, and the product positioning jig is arranged on one side of the guide rail and is located in the moving range of the reclaiming mechanism. 9 . Inside, the positioning fixture includes a product tray, a tray support, a rotating mechanism and a connecting rod, the product tray is placed on the tray support, one end of the connecting rod is connected to the rotating mechanism, and the other end is connected to the product tray , the rotating mechanism can drive the connecting rod to rotate, so as to drive the product tray to turn over between the tray bracket and the end of the guide rail close to the second mold supply device, so as to realize the feeding of the product to be coated to the lower envelope. 9 . The automatic film coating equipment according to claim 1 , wherein the film supply device comprises a fixed shaft, a spring, a stopper and a fixed bracket, and the fixed shaft is connected to the fixed shaft. 10 . A fixing member is arranged on the bracket, and one end away from the fixing bracket is provided with a fixing member, the limiting member and the spring are both sleeved on the fixing shaft, and the limiting member is located between the fixing bracket and the fixing bracket. The spring is located between the limiting piece and the fixing piece, and the wrapping material is placed between the limiting piece and the fixing bracket. 10 . The automatic coating equipment according to claim 9 , wherein a plurality of said limiting members are provided, and adjacent said limiting members are arranged at a certain distance to place the coating roll material. 11 .

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