Automatic conveying device for wide corrugated board processing

Abstract

The utility model relates to the related technical field of corrugated board processing, in particular to a wide corrugated board processing automatic conveying device which comprises a device body, a feeding assembly is arranged in the middle of the upper side of the left end of the device body, and a conveying assembly is arranged on the inner side of the upper end of the middle of the device body. And a supporting roller is arranged in a groove in the middle of the left end of the feeding assembly. The improved automatic conveying device for wide corrugated board processing is provided with a width limiting plate and a length limiting strip, a first adjusting knob can drive an adjusting threaded rod through a threaded structure to adjust the distance between the width limiting plate and the inner wall of the middle of the device body, and meanwhile through a set of limiting pulleys in a groove in the bottom end of a lower pressing block, the width limiting plate and the length limiting strip are fixed; a limiting pulley can be tightly pressed on the upper side of the surface of the edge of the corrugated board through the elastic force of a spring at the end of a lower pressing block, and meanwhile, a set of length limiting strips are fixed to the upper side of a conveying assembly according to the length of the corrugated board, so that the corrugated board moves in the conveying process.

Description

Technical Field

[0001] The utility model relates to the technical field related to corrugated cardboard processing, in particular to an automatic transmission device for processing wide-width corrugated cardboard. Background Art

[0002] During the processing of corrugated cardboard, it needs to go through processes such as pressing and cutting. In order to reduce the manpower and material resources on the production line, it is necessary to introduce automatic transmission equipment. By connecting a transmission component in the middle of the two processing equipment, the corrugated cardboard can be transmitted according to the quantity.

[0003] The automatic transmission device needs to ensure the feeding and discharging components of the corrugated cardboard. It can limit the ends and edges of the corrugated cardboard to ensure the transmission path position of the corrugated cardboard, and at the same time, the components need to be able to adapt to the transmission of wide corrugated cardboard.

[0004] In the process of realizing the present invention, the inventors discovered that the existing technology has the following problems: 1. When the traditional automatic conveying device for corrugated cardboard processing conveys corrugated cardboard with a larger width in the production line, it is necessary to enable the limiting components inside the automatic conveying equipment to be tightly attached to the two end portions of the corrugated cardboard through the adjustment structure; 2. During the conveying process, the limiting components on both sides of the traditional automatic conveying device for corrugated cardboard processing will exert pressure toward the middle of the corrugated cardboard, causing wrinkles on the middle surface of the corrugated cardboard, thereby affecting subsequent processing. Utility Model Content

[0005] The purpose of the present invention is to provide an automatic conveying device for processing wide-width corrugated cardboard, so as to solve the problems mentioned in the above-mentioned background art that the traditional automatic conveying device for processing corrugated cardboard lacks an adjustable limit component and a flattening component to prevent flat wrinkles. To achieve the above-mentioned purpose, the present invention provides the following technical solutions: an automatic conveying device for processing wide-width corrugated cardboard, comprising a device body, a feed component is provided in the middle of the upper left end of the device body, and a conveying component is provided on the inner side of the upper middle end of the device body, a support roller is provided in the middle of the left end of the feed component, and width limit plates are provided in the middle of the front and rear end surfaces of the inner middle part of the device body;

[0006] The front and rear ends of the support roller are both provided with connecting shafts, and the middle parts of the front and rear ends of the support roller are both sleeved with feeding limit rings, the middle parts of the upper ends of the feeding limit rings are both grooved and provided with locking components, and a group of flattening rollers are provided in the middle part of the inner side of the feeding component;

[0007] The rear end of each flattening roller is provided with a connecting slider, and a circular threaded groove is provided in the middle of each connecting slider. A second adjusting knob is provided in the middle of the rear end of the feeding assembly, and a rotating rod group is provided at the front end of the second adjusting knob. A rotating threaded rod is provided in the middle of the front bottom end of the rotating rod group.

[0008] The middle part of the transmission component is grooved with a group of length limit strips at equal intervals, and the right ends of the length limit strips are connected to the clamping components by bolts, the middle part of the upper end of the clamping component is grooved with fixing bolts, and the middle part of the width limiting plate close to the side surface of the transmission component is grooved with a group of lower pressing blocks at equal intervals, the middle part of the bottom end surface of the lower pressing block is grooved with limiting pulleys on both sides, and the middle part of the end surface of the width limiting plate away from the transmission component is grooved with an adjusting threaded rod, and the other end of the adjusting threaded rod is connected to the first adjusting knob.

[0009] Further preferably, the front and rear left and right ends of the conveying component are connected to the middle of the front and rear end surfaces inside the device body through bearings, and the front left end of the conveying component is connected to the drive motor through a coupling, and the upper surface of the left end of the conveying component is tightly attached to the bottom edge of the right end of the feeding component.

[0010] Further preferably, the middle portion of the rear end of the first adjusting knob passes through the bearing and is connected to the middle portion of the rear end surface of the device body, and the middle portion of the front end of the first adjusting knob is connected to the middle portion of the rear end of the adjusting threaded rod through a threaded structure, and the front end of the adjusting threaded rod is fixed to the middle portion of the rear end surface of the width limiting plate, and the end portion of the lower pressure block close to the width limiting plate is connected to the inner wall of the slide groove on one side of the width limiting plate close to the transmission component through a spring, and the middle portions of the front and rear sides of the upper end of the limiting pulley are both bearing-connected to the middle portions of the front and rear sides of the inner wall of the bottom end groove of the lower pressure block.

[0011] Further preferably, the upper and lower surfaces of the middle part of the locking assembly are tightly attached to the upper and lower surfaces of the upper end surface of the transmission assembly, and the bottom ends of the fixing bolts are bearing-connected to the inner wall of the circular groove in the middle part of the bottom end of the locking assembly, and the middle part of the upper end of the fixing bolts is threadedly connected to the middle part of the upper end of the locking assembly, and the bottom end surfaces of the length limit strips are tightly attached to the upper end surface of the transmission assembly.

[0012] Further preferably, the bottom end surface of the feeding assembly is fixed to the upper end surface of the left side of the device body by bolts, and the middle part of the right end of the connecting shaft is rotatably connected to the inner walls of the front and rear sides of the rectangular groove on the left side of the feeding assembly through a torsion spring, and the front and rear end portions of the supporting roller are connected to the inner wall of the circular groove in the middle part of the left end of the connecting shaft through bearings.

[0013] Further preferably, the inner surface of the feed limit ring is slidably mounted on the middle surface of the front and rear ends of the support roller, and a group of pulleys are grooved on the surface of one side of the feed limit ring close to the middle of the support roller, and the middle part of the upper end of the locking assembly is threadedly connected to the inner wall of the circular groove in the middle part of the upper end of the feed limit ring, and the locking arm at the bottom end of the locking assembly is slidably connected to the inner wall of the slide groove in the middle part of the upper end of the feed limit ring.

[0014] Further preferably, the front end middle part of the second adjusting knob passes through the bearing and is connected to the inner wall of the middle circular groove at the rear end of the feeding assembly, and the rear end middle part of the rotating rod group is fixed to the front end surface of the second adjusting knob, and the bottom end middle surface of the rotating rod group is fixed to the upper end surface of the rotating threaded rod, and the upper and lower ends of the rotating threaded rod are threaded and connected to the inner wall of the middle circular groove of the connecting slider, and the rear end of the flattening roller is slidably connected to the inner wall of the slide groove on the front side surface of the connecting slider through the slider, and the front end end of the flattening roller is slidably connected to the front middle part of the inner wall of the feeding assembly.

[0015] Compared with the prior art, the present invention has the following beneficial effects:

[0016] In the utility model, a width limiting plate and a length limiting strip are provided. By rotating the first adjusting knob in the middle of the rear end surface of the device main body, the first adjusting knob can drive the adjusting threaded rod to adjust the distance between the width limiting plate and the inner wall of the middle of the device main body through the threaded structure, so that the lower pressing block at the end of the width limiting plate can approach the edge of the corrugated cardboard on the upper side of the conveying component. At the same time, through a group of limiting pulleys inside the groove at the bottom end of the lower pressing block, the limiting pulley can be tightly pressed against the upper surface of the edge of the corrugated cardboard by the elastic force of the spring at the end of the lower pressing block. At the same time, by fixing a group of length limiting strips on the upper side of the conveying component according to the length of the corrugated cardboard, the corrugated cardboard can be displaced during transportation.

[0017] In the utility model, a flattening roller and a support roller are provided, a feed assembly is provided at the upper left end of the device body, and a support roller is provided in the slot on the left side of the feed assembly, so that the support roller can maintain a horizontal state when the corrugated cardboard enters the left groove of the feed assembly through the elastic force of the spring at the end of the connecting shaft connected to the end. At the same time, by rotating the second adjusting knob, the second adjusting knob drives the rotating threaded rod through the rotating rod group and drives the connecting slider through the threaded structure to adjust the distance between the flattening rollers, and the surface of the corrugated cardboard is pressed by the slider elastic component at the end of the flattening roller to avoid wrinkles. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a schematic diagram of the overall structure of the utility model;

[0019] Figure 2This is an enlarged structural diagram of the width limiting plate of the utility model;

[0020] Figure 3 This is a schematic diagram of the enlarged structure of the length limit bar of the utility model;

[0021] Figure 4 This is an enlarged structural diagram of the flattening roller of the utility model;

[0022] Figure 5 This is an enlarged structural diagram of the flattening roller of the utility model.

[0023] In the figure: 1. Device body; 2. Feed assembly; 3. Conveying assembly; 4. Width limit plate; 5. Lower pressure block; 6. Length limit bar; 7. First adjusting knob; 8. Adjusting threaded rod; 9. Limiting pulley; 10. Fixing bolt; 11. Clamping assembly; 12. Flattening roller; 13. Support roller; 14. Feed limit ring; 15. Locking assembly; 16. Connecting shaft; 17. Second adjusting knob; 18. Rotating rod group; 19. Rotating threaded rod; 20. Connecting slider. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technical personnel in this field without making creative efforts shall fall within the scope of protection of the present invention.

[0025] See also Figures 1 to 5 The utility model provides a technical solution: an automatic transmission device for processing wide-width corrugated cardboard, comprising a device body 1, a feeding assembly 2 is provided in the middle of the upper left end of the device body 1, and a conveying assembly 3 is provided on the inner side of the upper middle end of the device body 1, a support roller 13 is provided in a groove in the middle of the left end of the feeding assembly 2, and a width limiting plate 4 is provided in the middle of the front and rear end surfaces of the inner middle part of the device body 1;

[0026] The front and rear ends of the support roller 13 are both provided with connecting shafts 16, and the middle parts of the front and rear ends of the support roller 13 are both sleeved with feed limit rings 14, and the middle parts of the upper ends of the feed limit rings 14 are both grooved and provided with locking components 15, and a group of flattening rollers 12 are provided in the middle part of the inner side of the feed component 2;

[0027] The rear end of the flattening roller 12 is provided with a connecting slider 20, and a circular threaded groove is opened in the middle of the connecting slider 20. The middle of the rear end of the feeding assembly 2 is slotted with a second adjusting knob 17, and the front end of the second adjusting knob 17 is provided with a rotating rod group 18, and the middle of the front bottom end of the rotating rod group 18 is provided with a rotating threaded rod 19;

[0028] A group of length limit bars 6 are arranged at equal intervals in the middle groove of the transmission component 3, and the right ends of the length limit bars 6 are connected to the locking components 11 by bolts, and the middle of the upper end of the locking components 11 are grooved with fixing bolts 10, and a group of lower pressure blocks 5 are arranged at equal intervals in the middle of the side surface of the width limiting plate 4 close to the transmission component 3, and limiting pulleys 9 are grooved on both sides of the middle of the bottom end surface of the lower pressure block 5, and an adjusting threaded rod 8 is grooved in the middle of the end surface of the width limiting plate 4 away from the transmission component 3, and the other end of the adjusting threaded rod 8 is connected to the first adjusting knob 7.

[0029] In this embodiment, Figure 1 As shown, the left and right ends of the front and rear sides of the transmission component 3 are connected to the middle of the front and rear end surfaces of the inner side of the device body 1 through bearings, and the front left end of the transmission component 3 is connected to the drive motor through a coupling, and the upper surface of the left end of the transmission component 3 is tightly attached to the bottom edge of the right end of the feeding component 2; by arranging the transmission component 3 on the inner side of the middle part of the device body 1 and driving it through the drive motor, the transmission component 3 can provide the power for transportation.

[0030] In this embodiment, Figure 2 As shown, the middle part of the rear end of the first adjusting knob 7 passes through the bearing and is connected to the middle part of the rear end surface of the device body 1, and the middle part of the front end of the first adjusting knob 7 is connected to the middle part of the rear end of the adjusting threaded rod 8 through a threaded structure, and the front end of the adjusting threaded rod 8 is fixed to the middle part of the rear end surface of the width limiting plate 4, and the end of the lower pressure block 5 close to the width limiting plate 4 is connected to the inner wall of the slide groove on one side of the width limiting plate 4 close to the transmission component 3 through a spring, and the middle parts of the front and rear sides of the upper end of the limiting pulley 9 are connected to the middle parts of the front and rear sides of the inner wall of the bottom end groove of the lower pressure block 5 by bearings; by rotating the first adjusting knob 7, the first adjusting knob 7 can drive the adjusting threaded rod 8 to adjust the spacing between the width limiting plates 4 through the threaded structure, and at the same time, the front and rear edges of the corrugated cardboard are pressed together by the limiting pulley 9 inside the groove at the bottom end of the lower pressure block 5.

[0031] In this embodiment, Figure 3 As shown, the upper and lower surfaces of the middle part of the locking component 11 are tightly attached to the upper and lower surfaces of the upper end surface of the transmission component 3, and the bottom ends of the fixing bolts 10 are bearing-connected to the inner wall of the circular groove in the middle part of the bottom end of the locking component 11, and the middle part of the upper end of the fixing bolts 10 are threadedly connected to the middle part of the upper end of the locking component 11, and the bottom end surfaces of the length limiting strips 6 are tightly attached to the upper end surface of the transmission component 3; by arranging length limiting strips 6 at equal intervals in the middle part of the transmission component 3, and fixing the locking component 11 on the right side by bolts, and then rotating the fixing bolts 10 to adjust the spacing between the locking components 11 so that the locking components 11 can clamp and fix the middle part of the transmission component 3.

[0032] In this embodiment, Figure 4 As shown, the bottom end surface of the feeding component 2 is fixed to the upper end surface of the left side of the device body 1 by bolts, and the middle part of the right end of the connecting shaft 16 is rotatably connected to the inner walls of the front and rear sides of the rectangular groove on the left side of the feeding component 2 through a torsion spring, and the front and rear end portions of the supporting roller 13 are connected to the inner wall of the circular groove in the middle part of the left end of the connecting shaft 16 through bearings; by arranging the connecting shaft 16 inside the front and rear ends of the left side of the feeding component 2, and by the elastic force of the torsion spring at the end of the connecting shaft 16, the supporting roller 13 can maintain the horizontal angle of the corrugated cardboard entering the feeding component 2.

[0033] In this embodiment, Figure 4 As shown, the inner surface of the feed limit ring 14 is slidably mounted on the middle surface of the front and rear ends of the support roller 13, and a group of pulleys are grooved on the side surface of the feed limit ring 14 close to the middle of the support roller 13, and the upper middle part of the locking component 15 is threadedly connected to the inner wall of the circular groove in the middle of the upper end of the feed limit ring 14, and the locking arms at the bottom end of the locking component 15 are slidably connected to the inner wall of the slide groove in the middle of the upper end of the feed limit ring 14; by sleeved on the middle of the front and rear ends of the support roller 13, and adjusting the position of the feed limit ring 14 by the locking component 15, the spacing between the feed limit rings 14 can meet the position of the corrugated cardboard passing through the upper side of the support roller 13.

[0034] In this embodiment, Figure 5 As shown, the middle part of the front end of the second adjusting knob 17 passes through the bearing and is connected to the inner wall of the middle circular groove at the rear end of the feeding component 2, and the middle part of the rear end of the rotating rod group 18 is fixed to the front end surface of the second adjusting knob 17, and the middle surface of the bottom end of the rotating rod group 18 is fixed to the upper end surface of the rotating threaded rod 19, and the middle parts of the upper and lower ends of the rotating threaded rod 19 are threadedly connected to the inner wall of the middle circular groove of the connecting slider 20, and the rear end of the flattening roller 12 is slidably connected to the inner wall of the front surface of the connecting slider 20 through the slider, and the front end end of the flattening roller 12 is slidably connected to the middle part of the front side of the inner wall of the feeding component 2; by rotating the second adjusting knob 17, the rotating rod group 18 can be driven to rotate, so that the bottom end of the rotating rod group 18 can drive the rotating threaded rod 19 on the lower side to rotate, and drive the connecting sliders 20 on the upper and lower sides of the middle to slide and adjust the spacing of the flattening roller 12 through the threaded structure.

[0035] The use method and advantages of this utility model: When the wide-width corrugated cardboard processing automatic transmission device is used, the working process is as follows:

[0036] like Figure 1 、 Figure 2 、 Figure 3 、 Figure 4 and Figure 5 As shown, the user first needs to align the left and right sides of the device body 1 with the two sides of the assembly line equipment, so that the corrugated cardboard can enter the transmission equipment through the feeding component 2, and the user can adjust the position of the feeding limit ring 14 at both ends of the support roller 13 by sliding, and lock the position of the feeding limit ring 14 by rotating the locking component 15, so that the support roller 13 can support the entry angle of the corrugated cardboard through the elastic force of the torsion spring connected to the end of the rotating shaft 16;

[0037] The second adjusting knob 17 on the rear side of the feed assembly 2 can be rotated, and the rotating rod group 18 at the end of the second adjusting knob 17 drives the rotating threaded rod 19 to rotate, and the threaded structure in the middle of the upper and lower ends of the rotating threaded rod 19 drives the connecting slider 20 to slide along the inner wall groove of the feed assembly 2, thereby enabling the connecting slider 20 to adjust the distance between the flattening rollers 12 to control the pressure of the flattening rollers 12 on the surface of the corrugated cardboard;

[0038] The user can adjust the position spacing of the length limit strips 6 on the upper side of the conveying component 3 so that the spacing can adapt to the length of the corrugated cardboard, and rotate the fixing bolt 10 so that the upper and lower sides of the clamping component 11 can clamp and fix the middle of the conveying component 3. At the same time, the first adjusting knob 7 on the rear side of the device body 1 can be rotated, and the threaded structure at the front end of the first adjusting knob 7 drives the adjusting threaded rod 8 to adjust the position spacing of the width limiting plates 4, so that the spacing between the width limiting plates 4 can adapt to the width of the corrugated cardboard, and the lower pressing block 5 inside the groove at the end of the width limiting plate 4 allows the limiting pulley 9 inside the groove at the bottom end of the lower pressing block 5 to press and fix the front and rear edges of the corrugated cardboard.

[0039] The above shows and describes the basic principles, main features, and advantages of the present invention. Persons skilled in the art should understand that the present invention is not limited to the above-described embodiments. The above-described embodiments and descriptions are merely preferred examples of the present invention and are not intended to limit the present invention. Various changes and improvements may be made to the present invention without departing from the spirit and scope of the present invention, and such changes and improvements fall within the scope of the present invention. The scope of protection claimed in the present invention is defined by the appended claims and their equivalents.

Claims

1. An automatic transmission device for processing wide corrugated cardboard, comprising a device body (1), characterized in that: A feeding assembly (2) is provided in the middle of the upper left end of the device body (1), and a conveying assembly (3) is provided on the inner side of the upper middle end of the device body (1); a support roller (13) is provided in a groove in the middle of the left end of the feeding assembly (2), and width limiting plates (4) are provided in the middle of the front and rear end surfaces of the inner middle of the device body (1); The front and rear ends of the support roller (13) are both provided with connecting shafts (16), and the middle parts of the front and rear ends of the support roller (13) are both sleeved with feed limiting rings (14), the middle parts of the upper ends of the feed limiting rings (14) are both grooved and provided with locking components (15), and a group of flattening rollers (12) are provided in the middle part of the inner side of the feed component (2); The rear end of each flattening roller (12) is provided with a connecting slider (20), and a circular through-thread groove is provided in the middle of each connecting slider (20); a second adjusting knob (17) is provided in the middle of the rear end of each feeding assembly (2), and a rotating rod group (18) is provided at the front end of the second adjusting knob (17); a rotating threaded rod (19) is provided at the middle of the front bottom end of each rotating rod group (18); The middle part of the transmission component (3) is grooved with a group of length limiting strips (6) at equal intervals, and the right ends of the length limiting strips (6) are connected to the clamping components (11) by bolts, and the middle part of the upper end of the clamping components (11) is grooved with fixing bolts (10), and the middle part of the side surface of the width limiting plate (4) close to the transmission component (3) is grooved with a group of lower pressing blocks (5) at equal intervals, and the middle part of the bottom end surface of the lower pressing block (5) is grooved with limiting pulleys (9) on both sides, and the middle part of the end surface of the width limiting plate (4) away from the transmission component (3) is grooved with an adjusting threaded rod (8), and the other end of the adjusting threaded rod (8) is connected to the first adjusting knob (7).

2. The automatic conveying device for processing wide corrugated cardboard according to claim 1, characterized in that: The front and rear left and right ends of the conveying component (3) are connected to the middle of the front and rear end surfaces of the inner side of the device body (1) through bearings, and the front left end of the conveying component (3) is connected to the driving motor through a coupling, and the upper surface of the left end of the conveying component (3) is tightly attached to the bottom edge of the right end of the feeding component (2).

3. The automatic conveying device for processing wide corrugated cardboard according to claim 1, characterized in that: The middle part of the rear end of the first adjusting knob (7) passes through the bearing and is connected to the middle part of the rear end surface of the device body (1), and the middle part of the front end of the first adjusting knob (7) is connected to the middle part of the rear end of the adjusting threaded rod (8) through a threaded structure, and the front end of the adjusting threaded rod (8) is fixed to the middle part of the rear end surface of the width limiting plate (4), and the end of the lower pressure block (5) close to the width limiting plate (4) is connected to the inner wall of the sliding groove on one side of the width limiting plate (4) close to the transmission component (3) through a spring, and the middle parts of the front and rear sides of the upper end of the limiting pulley (9) are both connected to the middle parts of the front and rear sides of the inner wall of the bottom groove of the lower pressure block (5) by bearings.

4. The automatic conveying device for processing wide corrugated cardboard according to claim 1, characterized in that: The upper and lower surfaces of the middle part of the locking assembly (11) are both tightly attached to the upper and lower surfaces of the upper end surface of the transmission assembly (3), and the bottom ends of the fixing bolts (10) are both bearing-connected to the inner wall of the circular groove in the middle part of the bottom end of the locking assembly (11), and the middle part of the upper end of the fixing bolts (10) are both threadedly connected to the middle part of the upper end of the locking assembly (11), and the bottom end surfaces of the length limiting strips (6) are both tightly attached to the upper end surface of the transmission assembly (3).

5. The automatic conveying device for processing wide corrugated cardboard according to claim 1, characterized in that: The bottom end surface of the feed assembly (2) is fixed to the upper end surface of the left side of the device body (1) by bolts, and the middle part of the right end of the connecting shaft (16) is rotatably connected to the inner walls of the front and rear sides of the rectangular groove on the left side of the feed assembly (2) through a torsion spring, and the front and rear end portions of the support roller (13) are connected to the inner wall of the circular groove in the middle part of the left end of the connecting shaft (16) through bearings.

6. The automatic conveying device for processing wide corrugated cardboard according to claim 1, characterized in that: The inner surface of the feed limit ring (14) is slidably sleeved on the middle surface of the front and rear ends of the support roller (13), and a group of pulleys are grooved on the side surface of the feed limit ring (14) close to the middle of the support roller (13), and the middle part of the upper end of the locking component (15) is threadedly connected to the inner wall of the circular groove in the middle part of the upper end of the feed limit ring (14), and the bottom end locking arm of the locking component (15) is slidably connected to the inner wall of the sliding groove in the middle part of the upper end of the feed limit ring (14).

7. The automatic conveying device for processing wide corrugated cardboard according to claim 1, characterized in that: The middle of the front end of the second adjusting knob (17) passes through the bearing and is connected to the inner wall of the circular groove in the middle of the rear end of the feeding component (2), and the middle of the rear end of the rotating rod group (18) is fixed to the front end surface of the second adjusting knob (17), and the middle surface of the bottom end of the rotating rod group (18) is fixed to the upper end surface of the rotating threaded rod (19), and the middle of the upper and lower ends of the rotating threaded rod (19) are threadedly connected to the inner wall of the central circular groove of the connecting slider (20), and the rear end of the flattening roller (12) is slidably connected to the inner wall of the front side surface of the connecting slider (20) through the slider, and the front end of the flattening roller (12) is slidably connected to the middle of the front side of the inner wall of the feeding component (2).

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