Automatic packaging and rolling machine

Abstract

The present invention discloses an automatic packaging and rolling machine, comprising a first conveying support, a second conveying support and a rolling support, wherein a first conveyor belt is provided on the first conveying support, a second conveyor belt is provided on the second conveying support, a rolling mechanism is provided on the rolling support, the second conveyor belt is located below the first conveyor belt, and the second conveyor belt is located between the first conveyor belt and the rolling mechanism, the rolling mechanism comprises a plurality of rolling rollers, a rolling area is formed between the plurality of rolling rollers, a packaging mechanism is provided on the rolling support, the packaging mechanism comprises a packaging support connected to the rolling support for lifting and a bending cylinder slidable on the rolling support, a film supply support is provided on the packaging support, a rotatable roll packaging film is provided on the film supply support, a bending rod is provided on the piston rod of the bending cylinder, and the bending rod is located above the rolling area, so as to realize automatic rolling and packaging of the product and improve the rolling and packaging efficiency.

Description

Technical Field

[0001] The invention belongs to the technical field of rolling equipment, and more particularly relates to an automatic packaging and rolling machine. Background Art

[0002] For some heavy products such as carpets and blankets, in order to facilitate their transportation, they are generally aligned and rolled before transportation. After rolling, the products are tied with tying ropes to prevent them from spreading out. Then, traditional packaging bags are put on the products and the two ends of the packaging bags are sealed to complete the packaging of the products.

[0003] However, for some heavy blankets, manual rolling has poor effect, and the rolled products are easy to spread out when bundled, and the rolling packaging efficiency is low. It is necessary to design an automatic rolling equipment to replace manual rolling and packaging operations to improve the rolling efficiency. Summary of the Invention

[0004] In view of the deficiencies in the prior art, the present invention provides an automatic packaging and coiling machine that improves product coiling and packaging efficiency.

[0005] To achieve the above-mentioned objectives, the present invention provides the following technical solutions: an automatic packaging and rolling machine, comprising a first conveying support, a second conveying support and a rolling support, wherein a first conveyor belt is provided on the first conveying support, a second conveyor belt is provided on the second conveying support, a rolling mechanism is provided on the rolling support, the second conveyor belt is located below the first conveyor belt, the second conveyor belt is located between the first conveyor belt and the rolling mechanism, the rolling mechanism includes a plurality of rolling rollers, a rolling area is formed between the plurality of rolling rollers, a packaging mechanism is provided on the rolling support, the packaging mechanism includes a packaging support connected to the rolling support for lifting and a bending cylinder slidable on the rolling support, a film supply support is provided on the packaging support, a rotatable roll packaging film is provided on the film supply support, a bending rod is provided on the piston rod of the bending cylinder, and the bending rod is located above the rolling area.

[0006] Furthermore, the several winding rollers include a first winding roller, a second winding roller, a third winding roller and a fourth winding roller, the first winding roller is located above the conveying end of the second conveyor belt, the second winding roller is located below the end of the second conveyor belt, the first winding roller and the second winding roller are close to the second conveyor belt, the third winding roller and the fourth winding roller are away from the second conveyor belt, and the third winding roller is located above the fourth winding roller, the first winding roller and the second winding roller rotate synchronously, the third winding roller and the fourth winding roller rotate synchronously, and the four winding rollers are each provided with a plurality of winding wheels, the winding wheels on the first winding roller and the second winding roller are staggered with each other, the winding wheels on the third winding roller and the fourth winding roller are staggered and partially overlapped with each other, the winding wheels on the second winding roller and the fourth winding roller are staggered and partially overlapped with each other, and the third winding roller and the fourth winding roller are synchronously slidably connected to the winding bracket.

[0007] Furthermore, a support plate is provided on the winding bracket, and the support plate is located between the first winding roller and the second winding roller on the side close to the conveyor belt and is flush with the conveyor belt. A plurality of first baffles are provided on the side of the support plate away from the conveyor belt, and the baffles extend toward the direction of the second winding roller and are staggered and partially overlapped with the winding wheel on the second winding roller. A second baffle is provided above the support plate, and the second baffle extends toward the direction of the first winding roller and is staggered and partially overlapped with the winding wheel on the second winding roller.

[0008] Furthermore, a movable bracket is slidably connected to the rolling bracket, the third rolling roller and the fourth rolling roller are rotatably connected to the movable bracket, an elastic member is provided between the movable bracket and the rolling bracket, and a pushing cylinder corresponding to the movable bracket is provided on the rolling bracket.

[0009] Furthermore, a film cutting mechanism is provided on the winding bracket, and the film cutting mechanism includes a pull rod and a sawtooth rod located above the first winding roller and the third winding roller, and the pull rod and the sawtooth rod are respectively slidably connected to the winding bracket.

[0010] Furthermore, a first pressure rod and a second pressure rod are provided on the packaging bracket, the first pressure rod and the second pressure rod are both rotatably connected to the packaging bracket, and the second pressure rod is also slidably connected to the packaging bracket, the first pressure rod and the second pressure rod are located below the film supply bracket, and the first pressure rod is connected to a driving mechanism.

[0011] Furthermore, a packaging bag holder is provided on the second conveying bracket, a bag cutting mechanism is provided on the first conveying bracket, the bag cutting mechanism includes a support rod, a cutting knife is slidably connected to the support rod, and a cutting pressure rod corresponding to the cutting knife is provided on the second conveying bracket.

[0012] Furthermore, a liftable pressure roller bracket is provided on the rolling bracket, and the pressure roller bracket is rotatably connected to the pressure roller.

[0013] Furthermore, a third conveying bracket is connected to the conveying front end of the first conveying bracket, and a third conveying belt and a heating oven are provided on the third conveying bracket.

[0014] Compared with the prior art, the beneficial effects of the present invention are as follows: the product is first placed on the first conveyor belt, and then the product is sent to the rolling area on the rolling bracket through the second conveyor belt, and the rolling operation is performed by the four rolling rollers on the rolling bracket. When the end of the product is about to be conveyed from the first conveyor belt to the second conveyor belt, the packaging bag is conveyed to the bottom of the end of the product by the second conveyor bracket, and enters the rolling area with the product for rolling, so that the packaging bag is wrapped around the outermost layer of the product. Finally, the packaging film on the packaging bracket is conveyed to the rolling area, and the packaging bag is fixed by the packaging film to prevent the product from spreading, thereby realizing automatic rolling and automatic packaging of the product and improving the rolling efficiency of the product. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a structural diagram of the automatic packaging and rolling machine of the present invention;

[0016] Figure 2 Schematic diagram of the structure of the rolling bracket in the present invention;

[0017] Figure 3 This is a schematic structural diagram of the rolling bracket in another perspective of the present invention;

[0018] Figure 4 This is a schematic side structural diagram of the rolling bracket in the present invention;

[0019] Figure 5 Schematic diagram of the cross-sectional structure of the coiling bracket in the present invention;

[0020] Figure 6 Schematic diagram of the rolling process in the present invention;

[0021] Figure 7 Schematic diagram of the structure of the membrane cutting mechanism of the present invention;

[0022] Figure 8 This is a structural diagram of the packaging and rolling machine in Example 2 of the present invention.

[0023] Figure markings: 1. First conveying bracket; 2. Second conveying bracket; 3. First conveyor belt; 4. Second conveyor belt; 5. Rolling bracket; 6. Bag cutting mechanism; 7. Packaging bag bracket; 8. Film supply bracket; 9. Packaging bracket; 10. First pressure rod; 11. Second pressure rod; 12. Bending cylinder; 13. Pressure roller; 14. Bending rod; 15. Film cutting mechanism; 16. Pull rod; 17. Sawtooth rod; 18. First rolling roller; 19. Second rolling roller; 20. Third rolling roller; 21. Fourth rolling roller; 22. Rolling wheel; 23. Support plate; 24. First baffle; 25. Second baffle; 26. Third conveying bracket; 27. Heating oven; 28. Moving bracket; 29. ​​Push cylinder; 30. Elastic member. DETAILED DESCRIPTION

[0024] In the description of the present invention, it should be noted that, for directional words, such as the terms "center", "horizontal (X)", "longitudinal (Y)", "vertical (Z)", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like, indicating directions and positional relationships, are based on the directions or positional relationships 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 direction, be constructed and operated in a specific direction, and cannot be understood as limiting the specific scope of protection of the present invention.

[0025] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features. Therefore, the terms "first" and "second" may explicitly or implicitly refer to one or more of these features. Throughout the description of the present invention, "several" and "a number" mean two or more, unless otherwise specifically defined.

[0026] Reference Figures 1 to 8 The present invention is further described.

[0027] Example 1:

[0028] An automatic packaging and rolling machine includes a first conveying support 1, a second conveying support 2 and a rolling support 5, the first conveying support 1 is provided with a first conveyor belt 3, the second conveying support 2 is provided with a second conveyor belt 4, the rolling support 5 is provided with a rolling mechanism, the second conveyor belt 4 is located below the first conveyor belt 3, the second conveyor belt 4 is located between the first conveyor belt 3 and the rolling mechanism, the rolling mechanism includes a plurality of rolling rollers, a rolling area is formed between the plurality of rolling rollers, a packaging mechanism is provided on the rolling support 5, the packaging mechanism includes a packaging support 9 connected to the rolling support 5 for lifting and lowering and a bending cylinder 12 slidable on the rolling support 5, a film supply support 8 is provided on the packaging support 9, a rotatable roll packaging film is provided on the film supply support 8, a bending rod 14 is provided on the piston rod of the bending cylinder 12, and the bending rod 14 is located above the rolling area.

[0029] Preferably, the packaging bag used to package the product is layered, and the width of both sides of the packaging bag is greater than the width of the product, and the width of the packaging film used to wrap the outside of the packaging bag is smaller than the width of the product.

[0030] Preferably, after the packaging bag is wrapped with a multi-layer packaging film, the packaging bag can be packaged by utilizing the adhesiveness of the packaging film to prevent it from falling apart.

[0031] like Figure 5 and Figure 6 As shown, in this embodiment, preferably, the plurality of winding rollers include a first winding roller 18, a second winding roller 19, a third winding roller 20 and a fourth winding roller 21, the first winding roller 18 is located above the conveying end of the second conveyor belt 4, the second winding roller 19 is located below the conveying end of the second conveyor belt 4, the first winding roller 18 and the second winding roller 19 are close to the second conveyor belt 4, the third winding roller 20 and the fourth winding roller 21 are away from the second conveyor belt 4, and the third winding roller 20 is located above the fourth winding roller 21, the first winding roller The roller 18 and the second winding roller 19 rotate synchronously, and the third winding roller 20 and the fourth winding roller 21 rotate synchronously. Several winding wheels 22 are provided on the four winding rollers. The winding wheels 22 on the first winding roller 18 and the second winding roller 19 are staggered with each other, and the winding wheels 22 on the third winding roller 20 and the fourth winding roller 21 are staggered and partially overlapped with each other. The winding wheels 22 on the second winding roller 19 and the fourth winding roller 21 are staggered and partially overlapped with each other. The third winding roller 20 and the fourth winding roller 21 are synchronously slidably connected to the winding bracket 5.

[0032] Preferably, the first winding roller 18 and the second winding roller 19 are connected to the same drive motor via a transmission belt, and the third winding roller 20 and the fourth winding roller 21 are also connected to the same drive motor via a transmission belt, and when winding, the four winding rollers rotate clockwise at the same time.

[0033] Preferably, a rubber pad is provided on the winding wheel 22 to increase the friction between the product and the winding wheel 22 to avoid slipping.

[0034] like Figure 6 As shown, in this embodiment, preferably, a support plate 23 is provided on the rolling bracket 5, and the support plate 23 is located between the first rolling roller 18 and the second rolling roller 19 on the side close to the conveyor belt and is flush with the conveyor belt. A plurality of first baffles 24 are provided on the side of the support plate 23 away from the conveyor belt, and the baffles extend toward the direction of the second rolling roller 19 and are staggered and partially overlapped with the winding wheel 22 on the second rolling roller 19. A second baffle 25 is provided above the support plate 23, and the second baffle 25 extends toward the direction of the first rolling roller 18 and is staggered and partially overlapped with the winding wheel 22 on the second rolling roller 19. The first baffle 24 and the second baffle 25 are both intended to prevent the front end of the product from extending out of the winding area in the early stage of rolling.

[0035] like Figure 4 As shown, in this embodiment, preferably, a movable bracket 28 is slidably connected to the rolling bracket 5, the third rolling roller 20 and the fourth rolling roller 21 are rotatably connected to the movable bracket 28, an elastic member 30 is provided between the movable bracket 28 and the rolling bracket 5, and a pushing cylinder 29 corresponding to the movable bracket 28 is provided on the rolling bracket 5.

[0036] like Figure 7 As shown, in this embodiment, preferably, a film cutting mechanism 15 is provided on the rolling bracket 5, and the film cutting mechanism 15 includes a pull rod 16 and a sawtooth rod 17 located above the first rolling roller 18 and the third rolling roller 20, and the pull rod 16 and the sawtooth rod 17 are respectively slidably connected to the rolling bracket 5.

[0037] like Figure 5 As shown, in this embodiment, preferably, a first pressure rod 10 and a second pressure rod 11 are provided on the packaging bracket 9, the first pressure rod 10 and the second pressure rod 11 are both rotatably connected to the packaging bracket 9, and the second pressure rod 11 is also slidably connected to the packaging bracket 9, the first pressure rod 10 and the second pressure rod 11 are located below the film supply bracket 8, and the first pressure rod 10 is connected to a driving mechanism.

[0038] like Figure 1As shown, in this embodiment, preferably, a packaging bag holder 7 is provided on the second conveying bracket 2 for placing and conveying the rolled packaging bags, and a bag cutting mechanism 6 is provided on the first conveying bracket 1. The bag cutting mechanism includes a support rod, and a cutting knife is slidably connected to the support rod, and the packaging bag is cut by the cutting knife. A cutting pressure rod corresponding to the cutting knife is provided on the second conveying bracket 2, which presses the packaging bag before the packaging bag is cut to avoid movement during cutting and causing the end of the packaging bag to be skewed.

[0039] like Figure 2 As shown, in this embodiment, preferably, a liftable pressure roller 13 bracket is provided on the rolling bracket 5, and the pressure roller 13 bracket is rotatably connected to the pressure roller 13. When the front end of the product approaches the pressure roller 13, the pressure roller 13 bracket descends and presses the product onto the second conveyor belt 4, ensuring that the product enters the rolling area in a flat surface.

[0040] like Figures 1 to 7 As shown, the product to be rolled is conveyed by the first conveyor belt 3 on the first conveying bracket 1 and transferred from the first conveyor belt 3 to the second conveyor belt 4 of the second conveying bracket 2, and then the second conveyor belt 4 conveys the product to the rolling area formed by the four rolling rollers;

[0041] During rolling, the front end of the product extends into the rolling area and first contacts the rolling wheel 22 on the third rolling roller 20. The clockwise rotating rolling wheel 22 drives the front end of the product to move downward toward the fourth rolling roller 21; when the front end of the product contacts the rolling wheel 22 on the fourth rolling roller 21, the clockwise rotating rolling wheel 22 drives the front end of the product to move rightward toward the second rolling roller 19; when the front end of the product contacts the rolling wheel 22 on the second rolling roller 19, the clockwise rotating rolling wheel 22 drives the front end of the product to move upward toward the first rolling roller 18; after the front end of the product moves upward, it contacts other parts of the product being conveyed. Since other parts of the product are constantly moving toward the rolling area, the front end of the product rotates counterclockwise in the rolling area, thereby starting to roll the product in a cycle.

[0042] When the product is almost completely rolled, the packaging bag holder 7 on the second conveying bracket 2 starts to convey the packaging bag to the second conveyor belt 4, so that the packaging bag is located below the end of the product. After conveying a certain length of packaging bag, the packaging bag is cut by the bag cutting mechanism 6 on the first conveying bracket 1. When the end of the product enters the rolling area, the front end of the packaging bag also enters the rolling area for rolling at the same time. In this way, the packaging bag will be wrapped around the outer layer of the rolled product, thus completing the packaging of the rolled product.

[0043] The bending cylinder 12 and the bending rod 14 are located above the two ends of the product. When the packaging bag is fully rolled and wrapped around the product, the two ends of the packaging bag will extend beyond the two ends of the product. Then the bending cylinder 12 is activated, driving the bending rod 14 to descend. When the bending rod 14 contacts the protruding part of the packaging bag, it bends the protruding part of the packaging bag at 90 degrees. As the product rotates, the bent part of the packaging bag will be rotated and pressed against the outer layer of the packaging bag, and the bending rod 14 will continue to extend at the two ends of the packaging bag.

[0044] After the two ends of the packaging bag are bent, the second pressure rod 11 slides to press the packaging film between the first pressure rod 10 and the second pressure rod 11, and then the first pressure rod 10 is driven to rotate, so that the packaging film starts to be conveyed, and the front end of the packaging film is driven by the pull rod 16 to move to the top of the rotating packaging bag, and then the front end of the packaging film contacts the rotating packaging bag, and the rotating packaging bag drives the packaging film and the bent part of the packaging bag to be wrapped around the outer layer of the packaging bag. When several layers of packaging film are wrapped on the packaging bag, the serrated rod 17 moves toward the packaging film. When the saw teeth on the serrated rod 17 contact the packaging film, the packaging film can be cut by the saw teeth on the serrated rod 17, and finally the packaging film is rolled up.

[0045] The push cylinder 29 pushes the movable bracket 28 to slide back, so that the packaged product can fall off. After the movable bracket 28 is reset, the card starts the next rolling operation.

[0046] Preferably, during the rolling process of the product, packaging bag and packaging film, as the rolling diameter continues to increase, the outermost side will push the third rolling roller 20 and the fourth rolling roller 21, that is, as the product is rolled and packaged, the rolling area gradually increases, and an elastic member 30 is provided between the movable bracket 28 and the rolling bracket 5, so that the third rolling roller 20 and the fourth rolling roller 21 are always pressed on the rolled product when being pushed apart, ensuring that there will be no gaps between the rolled layers during rolling, thereby preventing the rolled product from spreading.

[0047] Preferably, the rolling bracket 5 is provided with an inclined blanking plate, which is located below the rolling mechanism and is used to receive the rolled product.

[0048] Preferably, the coiling bracket 5 is rotatably connected to a liftable support roller, and the support roller is located below the coiling area. During coiling, the third coiling roller 20 and the fourth coiling roller 21 move to expand the coiling area. At this time, the coiled product in the coiling area can be supported by the support roller to prevent it from falling during the coiling process. When the product is coiled, the support roller is lowered again, so that the coiled product can fall from the coiling area to the blanking plate.

[0049] Example 2:

[0050] An automatic packaging and rolling machine includes a first conveying support 1, a second conveying support 2 and a rolling support 5, the first conveying support 1 is provided with a first conveyor belt 3, the second conveying support 2 is provided with a second conveyor belt 4, the rolling support 5 is provided with a rolling mechanism, the second conveyor belt 4 is located below the first conveyor belt 3, the second conveyor belt 4 is located between the first conveyor belt 3 and the rolling mechanism, the rolling mechanism includes a plurality of rolling rollers, a rolling area is formed between the plurality of rolling rollers, a packaging mechanism is provided on the rolling support 5, the packaging mechanism includes a packaging support 9 connected to the rolling support 5 for lifting and lowering and a bending cylinder 12 slidable on the rolling support 5, a film supply support 8 is provided on the packaging support 9, a rotatable roll packaging film is provided on the film supply support 8, a bending rod 14 is provided on the piston rod of the bending cylinder 12, and the bending rod 14 is located above the rolling area.

[0051] like Figure 8 As shown, in this embodiment, preferably, a third conveying bracket 26 is connected to the conveying front end of the first conveying bracket 1, and a third conveying belt and a heating oven 27 are provided on the third conveying bracket 26. That is, before conveying the product, it is first heated by the heating oven 27 on the third conveying bracket 26 to soften it and make it easier to roll.

[0052] Other technical features of this embodiment are the same as those of the first embodiment.

[0053] The above description is merely a preferred embodiment of the present invention. The scope of protection of the present invention is not limited to the above embodiment. All technical solutions based on the concept of the present invention are within the scope of protection of the present invention. It should be noted that for those skilled in the art, various improvements and modifications that do not depart from the principles of the present invention should also be considered within the scope of protection of the present invention.

Claims

1. An automatic packaging and rolling machine, characterized by: The present invention relates to a method for raising and lowering the packaging film to the packaging machine, wherein the first conveying support is provided with a first conveying belt, the second conveying support is provided with a second conveying belt, the rolling support is provided with a rolling mechanism, the second conveying belt is located below the first conveying belt, the second conveying belt is located between the first conveying belt and the rolling mechanism, the rolling mechanism includes a plurality of rolling rollers, a rolling area is formed between the plurality of rolling rollers, the rolling support is provided with a packaging mechanism, the packaging mechanism includes a packaging support connected to the rolling support for lifting and a bending cylinder slidable on the rolling support, the packaging support is provided with a film supply support, the film supply support is provided with a rotatable rolled packaging film, the piston rod of the bending cylinder is provided with a bending rod, and the bending rod is located above the rolling area; The plurality of winding rollers include a first winding roller, a second winding roller, a third winding roller and a fourth winding roller, wherein the first winding roller is located above the conveying end of the second conveyor belt, and the second winding roller is located below the end of the second conveyor belt, the first winding roller and the second winding roller are close to the second conveyor belt, the third winding roller and the fourth winding roller are away from the second conveyor belt, and the third winding roller is located above the fourth winding roller, the first winding roller and the second winding roller rotate synchronously, and the third winding roller and the fourth winding roller rotate synchronously. A plurality of winding wheels are provided on the four winding rollers, the winding wheels on the first winding roller and the second winding roller are staggered with each other, the winding wheels on the third winding roller and the fourth winding roller are staggered and partially overlapped with each other, the winding wheels on the second winding roller and the fourth winding roller are staggered and partially overlapped with each other, and the third winding roller and the fourth winding roller are synchronously slidably connected to the winding bracket; The first winding roller and the second winding roller are connected to the same drive motor via a transmission belt, and the third winding roller and the fourth winding roller are also connected to the same drive motor via a transmission belt. When winding, the four winding rollers rotate clockwise at the same time.

2. The automatic packaging and rolling machine according to claim 1, characterized in that: A support plate is provided on the winding bracket, and the support plate is located between the first winding roller and the second winding roller on a side close to the conveyor belt and flush with the conveyor belt. A plurality of first baffles are provided on the side of the support plate away from the conveyor belt, and the baffles extend toward the second winding roller and are staggered and partially overlapped with the winding wheels on the second winding roller. A second baffle is provided above the support plate, and the second baffle extends toward the first winding roller and is staggered and partially overlapped with the winding wheels on the second winding roller.

3. The automatic packaging and rolling machine according to claim 2, characterized in that: The rolling bracket is slidably connected to a movable bracket, the third rolling roller and the fourth rolling roller are rotatably connected to the movable bracket, an elastic member is provided between the movable bracket and the rolling bracket, and a pushing cylinder corresponding to the movable bracket is provided on the rolling bracket.

4. The automatic packaging and rolling machine according to claim 3, characterized in that: The winding bracket is provided with a film cutting mechanism, which includes a pull rod and a sawtooth rod located above the first winding roller and the third winding roller. The pull rod and the sawtooth rod are respectively slidably connected to the winding bracket.

5. The automatic packaging and rolling machine according to claim 4, characterized in that: The packaging bracket is provided with a first pressure rod and a second pressure rod, the first pressure rod and the second pressure rod are both rotatably connected to the packaging bracket, and the second pressure rod is also slidably connected to the packaging bracket, the first pressure rod and the second pressure rod are located below the film supply bracket, and the first pressure rod is connected to a driving mechanism.

6. The automatic packaging and rolling machine according to claim 5, characterized in that: The second conveying bracket is provided with a packaging bag bracket, the first conveying bracket is provided with a bag cutting mechanism, the bag cutting mechanism includes a support rod, a cutting knife is slidably connected to the support rod, and the second conveying bracket is provided with a cutting pressure rod corresponding to the cutting knife.

7. The automatic packaging and rolling machine according to claim 6, characterized in that: The rolling bracket is provided with a liftable pressure roller bracket, and the pressure roller bracket is rotatably connected to the pressure roller.

8. The automatic packaging and coiling machine according to any one of claims 1 to 7, characterized in that: The conveying front end of the first conveying bracket is connected to the third conveying bracket, and the third conveying bracket is provided with a third conveying belt and a heating oven.

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