Paperboard conveying equipment with baffles

Abstract

The paperboard conveying equipment with the baffles comprises a conveying mechanism capable of conveying paperboards forwards along the X axis, and the conveying mechanism comprises an air box body, a left conveying unit, a right conveying unit, an exhaust device and an adsorption type negative pressure forming air box; during working, paperboards are flatly laid on the left conveying unit and the right conveying unit to be adsorbed and driven by the left conveying unit and the right conveying unit to move forwards. A pair of front baffles are arranged above the conveying mechanism in the Y-axis direction, a left front baffle is arranged above the left conveying unit, a gap allowing a first paperboard to pass through is formed between the left conveying unit and the left front baffle, and the right conveying unit and the right front baffle are arranged in the same way as the left conveying unit and the left baffle. The left front baffle and the right front baffle are used for blocking other paperboards stacked on the first paperboard, at least one of the left front baffle and the right front baffle is an adjusting baffle, a swing plate is arranged on the lower portion of the adjusting baffle, and the swing plate can swing around the Y-axis rotating shaft, adjust and position and is used for determining the initial position of the corresponding part of the paperboard when moving in the X-axis direction.

Description

Technical Field

[0001] The utility model relates to a paperboard conveying device, in particular to a paperboard conveying device with a baffle. Background Art

[0002] In the carton production process, the cardboard conveying equipment plays a vital role. It is responsible for conveying the cardboard from the starting point to the processing station for printing, trimming and other operations, forming an assembly line operation, thereby ensuring the continuity and automation of carton production. Patent 201920385376.7 discloses a suction servo paper feeder, including: a limiting mechanism for limiting the peripheral position of the stacked cardboard to form a stacking area for cardboard stacking, and one side of the stacking area is provided with a paper outlet for the bottom layer of cardboard to be translated and delivered; a paper feeding mechanism, including a conveying wheel assembly arranged on the lower side of the stacking area, and the conveying wheel assembly corresponds to the position of the paper outlet; and a suction device, including a bellows arranged on the lower side of the conveying wheel assembly, and ventilation holes are distributed on the upper side wall of the bellows to suck the bottom layer of cardboard tightly onto the conveying wheel assembly, and convey the bottom layer of cardboard outward through the paper outlet when the conveying wheel assembly is running. The suction device can suck the bottom layer of cardboard onto the conveying wheel assembly, and drive the bottom layer of cardboard to move out of the paper outlet as the conveying wheel assembly rotates, so as to achieve the effect of sending the stacked cardboard from the bottom layer to the printing area for printing in sequence, thus realizing automatic feeding, improving production efficiency and reducing costs. Among them, the limiting mechanism includes two front baffles arranged side by side on the left and right. Before starting to convey, the cardboard can be positioned by using the two front baffles so that the left and right ends of the cardboard are arranged flush. However, referring to Figure 1 (A) To understand, during the cardboard conveying process, we found that when the cardboard leaves the front baffle (1, 1a) and is conveyed forward, the cardboard a will begin to deflect, resulting in a conveying distance deviation L at the left and right ends and cannot move forward in unison, which will affect the accuracy of subsequent processes such as printing, cutting and other processing. Summary of the invention

[0003] An analysis of the above-mentioned cardboard deflection phenomenon revealed that due to the influence of many factors such as the installation accuracy of the cardboard conveying equipment itself, the physical properties of the cardboard such as the thickness and width of the cardboard, and the difference in relative friction between different parts of the same cardboard and the conveying mechanism during the conveying process, one end of the cardboard will always arrive at the processing station later than the other end during the conveying process, and this is very regular, that is, on the same cardboard conveying equipment, at the same conveying speed, the conveying distance deviation of the left and right ends of the same batch of cardboard is basically the same. However, the deviation of different batches of cardboard conveyed at different operating speeds on different cardboard conveying equipment is different. Therefore, it is necessary to flexibly adjust the starting positions of the left and right ends of the cardboard according to different situations.

[0004] In order to solve the above technical problems, it is necessary to design an adjustment baffle that can flexibly adjust the relative initial position of the left and right ends of the cardboard. In view of this, the utility model proposes a cardboard conveying device with a baffle, including a conveying mechanism that can be used to convey the cardboard forward along the X-axis direction, the conveying mechanism includes a bellows body, a left conveying unit, a right conveying unit and an exhaust device that can evacuate the bellows body to form an adsorption-type negative pressure bellows, the left conveying unit and the right conveying unit are arranged in parallel on the bellows body, and when working, the cardboard is laid flat on the left conveying unit and the right conveying unit and is not only adsorbed but also driven forward by the left conveying unit and the right conveying unit; it is characterized in that a pair of front baffles are arranged above the conveying mechanism along the Y-axis direction, wherein a left conveying unit is arranged above the left conveying unit. A front baffle, a gap is arranged between the left conveying unit and the left front baffle for allowing the first cardboard to pass through, a right front baffle is arranged above the right conveying unit, and a gap is arranged between the right conveying unit and the right front baffle for allowing the first cardboard to pass through, the left front baffle and the right front baffle are used to block other cardboards stacked on the first cardboard; at least one of the left front baffle and the right front baffle is an adjustment baffle, the adjustment baffle includes a swing plate arranged at the lower part thereof, the swing plate can swing around a Y-axis rotation axis arranged along the Y-axis and can be adjusted and positioned, and the swing plate is used to determine the starting position of the corresponding part of the cardboard when it moves along the X-axis direction.

[0005] Among them, "a left front baffle is arranged above the left conveying unit" can be understood as, when the cardboard is laid flat on the left conveying unit, a contact reference plane is formed between the cardboard and the left conveying unit, and the left front baffle is arranged above the contact reference plane. In specific applications, the left front baffle can be located directly above or obliquely above the left conveying unit.

[0006] Among them, "a right front baffle is arranged above the right conveying unit" can be understood as that when the cardboard is laid flat on the right conveying unit, a contact reference plane is formed between the cardboard and the right conveying unit, and the right front baffle is arranged above the contact reference plane. In specific applications, the right front baffle can be located directly above or obliquely above the right conveying unit.

[0007] The “position adjustment” may be understood as that the swing plate can be driven to swing to adjust the angular position, and after swinging to the ideal angular position, the swing plate can also be positioned at the ideal angular position.

[0008] The "corresponding portion of the paperboard" can be understood as the portion of the paperboard that contacts the swing plate after the paperboard is aligned with the swing plate. In order to adjust the starting position of the left and right ends of the paperboard when moving along the X-axis direction, it is generally preferred to arrange the swing plate corresponding to the left or right end of the paperboard, and the other front baffle plate corresponding to the other end of the paperboard, so that the left and right ends of the paperboard have different starting positions through the swing plate.

[0009] Compared with the prior art, the beneficial technical effect of the utility model is that: due to the provision of the swing plate, the left end and the right end of the cardboard can have different starting positions through the swing plate, thereby being able to eliminate the conveying distance deviation between the left end and the right end of the cardboard during the cardboard conveying process. When the cardboard is conveyed to the processing station, the left end and the right end of the cardboard are basically flush, which is conducive to improving the processing accuracy.

[0010] Since the utility model has the above characteristics and advantages, it can be applied to a cardboard conveying device with a baffle. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 It is a dynamic schematic diagram of the conveying process of the cardboard, wherein Figure A) is a dynamic schematic diagram of the conveying process of the cardboard when the adjustment baffle is not used, and Figure B) is a dynamic schematic diagram of the conveying process after the adjustment baffle is used to adjust the positions of the left and right ends of the cardboard;

[0012] Figure 2 It is a side view (seen along the Y-axis direction) of the structure of a cardboard conveying device with a baffle plate to which the technical solution of the utility model is applied;

[0013] Figure 3 is a schematic structural diagram of the cardboard conveying device with a baffle in the main viewing direction (viewed along the X-axis direction);

[0014] Figure 4 is a schematic structural diagram of the right front baffle 1 in the main viewing direction (viewed along the X-axis direction);

[0015] Figure 5 yes Figure 4 A schematic cross-sectional structure diagram along the AA direction in FIG. 1 , in which the dotted line portion represents the first push adjustment member 2;

[0016] Figure 6 1 is a side view of the adjusting baffle assembly (seen along the Y-axis direction), wherein the adjusting baffle assembly is assembled from a right front baffle 1, a first push adjusting member 2, a second push adjusting member 13, a second adjusting screw 14, etc.;

[0017] Figure 7 It is a schematic diagram of the exploded structure of the regulating baffle assembly. DETAILED DESCRIPTION

[0018] The structure of the cardboard conveying device with baffles using the technical solution of the utility model is further described below in conjunction with the accompanying drawings. Except for the embodiments that are explicitly described as equivalent or optional, the various implementation details disclosed below can be selectively applied or combined in one embodiment even if there is no direct correlation or synergy in terms of function.

[0019] like Figure 2 and Figure 3 As shown, a cardboard conveying device with a baffle comprises a conveying mechanism 100 capable of conveying cardboard forward along the X-axis direction, the conveying mechanism 100 comprises a bellows body, a left conveying unit, a right conveying unit and an exhaust device capable of exhausting air from the bellows body to form an adsorption-type negative pressure bellows (not shown in the figure), the left conveying unit and the right conveying unit are arranged in parallel on the bellows body, and when working, the cardboard is laid flat on the left conveying unit and the right conveying unit and is not only adsorbed but also driven forward by the left conveying unit and the right conveying unit; it is characterized in that a pair of front baffles (1, 1a) are arranged above the conveying mechanism 100 along the Y-axis direction, wherein the left front baffle 1a is arranged above the left conveying unit. A gap H is arranged between the left conveying unit and the left front baffle 1a, through which the first cardboard can pass; a right front baffle 1 is arranged above the right conveying unit; a gap H is arranged between the right conveying unit and the right front baffle 1, through which the first cardboard can pass; the left front baffle 1a and the right front baffle 1 are used to block other cardboards stacked on the first cardboard; at least one of the left front baffle 1a and the right front baffle 1 is an adjustment baffle, and the adjustment baffle includes a swing plate 11 arranged at the lower part thereof, and the swing plate 11 can swing around a Y-axis rotation shaft 12 arranged along the Y-axis and can be adjusted and positioned, and the swing plate 11 is used to determine the starting position of the corresponding part of the cardboard when it moves along the X-axis. Of course, a pair of adjustment baffle combinations can also be used to jointly determine the starting position of the central area of ​​the cardboard when it moves. Furthermore, the left conveying unit and the right conveying unit respectively include at least three roller groups (for example, three, four, five or more rollers) arranged in parallel in front and back, each roller group is driven individually by a servo motor (not shown in the figure), and each roller group is provided with a rubber roller 103. When working, the cardboard is laid flat on the rubber roller 103 and driven forward by the servo motor to drive the rubber roller 103.

[0020] The above-mentioned "gap H for the first cardboard to pass through" is determined according to the thickness of the first cardboard. In the process of conveying cardboard, generally, a plurality of cardboards stacked together are fed to the conveying mechanism 100 at one time, and the first cardboard a1 is the cardboard at the bottom, and the thickness of the cardboards in the same batch are basically the same.

[0021] Among them, at least one of the left front baffle 1a and the right front baffle 1 is an adjustable baffle, which can be understood as only one or a pair of front baffles being an adjustable baffle.

[0022] like Figures 1 to 3 As shown, the following takes the example that only the right front baffle 1 is used as the adjustment baffle to introduce the adjustment function of the swing plate 11 in detail. The adjustment process is as follows: first, the equipment is debugged, the swing plate 11 is in the initial position (that is, positioned in a natural vertical position), and a plurality of cardboards stacked together are placed on the conveying mechanism 100, wherein the first cardboard a1 is arranged corresponding to the gap H and is not aligned with the front baffles (1, 1a), and the front side edges of the other cardboards a stacked on the first cardboard a1 are aligned with the pair of front baffles (1, 1a), and at this time, the left and right ends of the other cardboards located on the first cardboard a1 are flush. Then, the conveying mechanism 100 is started and the cardboard is conveyed forward at the speed of the formal conveying of the cardboard. Due to the influence of many factors such as the installation accuracy of the cardboard conveying equipment itself, the physical characteristics of the cardboard such as the thickness and width of the cardboard, and the difference in relative friction between different parts of the same cardboard and the conveying mechanism 100 during the conveying process, the left end of each cardboard always lags behind the right end during the conveying process. The conveying distance deviation L of the left and right ends of other cardboards located on the first cardboard a1 when they arrive at the post-processing station is measured, and the average value L1 is calculated. Subsequently, the swing plate 11 of the right front baffle 1 is adjusted to swing around the Y-axis rotation shaft 12 in the opposite direction of the cardboard transportation and is adjusted and positioned as shown in FIG. Figure 1 As shown in (B), the right end of the cardboard a is moved back L1 relative to its left end. In this way, the other cardboards on the first cardboard a1 transported by the conveying mechanism 100 are basically flush with each other when they arrive at the lower station. If the opposite situation occurs, and the right end of each cardboard always lags behind the left end during the conveying process, it is necessary to adjust the swing plate 11 of the right front baffle 1 to swing around the Y-axis shaft 12 in the cardboard transportation direction. Of course, in other embodiments, the lower part of a pair of the front baffles (1, 1a) can also have swing plates 11 respectively, so that the starting position of the left and right ends of the cardboard when moving along the X-axis direction can be adjusted by flexibly adjusting the pair of swing plates 11 disposed on the left and right. Alternatively, it is changed to only the lower part of the left adjustment baffle 1a having a swing plate 11, and the swing plate 11 flexibly determines the starting position of the left end of the cardboard a when moving along the X-axis direction.

[0023] like Figure 2As shown, the left front baffle 1a and the right front baffle 1 are both provided with the same structure of a mechanism for sliding left and right along the Y-axis direction and a mechanism for lifting up and down along the Z-axis direction. The left and right sliding mechanism and the lifting up and down mechanism of the right front baffle 1 are taken as an example for description. Above the conveying mechanism 100, there is also a Y-axis eccentric shaft 180 arranged along the Y-axis direction and an eccentric wheel 108 sleeved on the Y-axis eccentric shaft 180. The central axis of the eccentric wheel 108 does not overlap with its rotation axis. The eccentric wheel 108 is connected to the right front baffle 1 in a transmission manner. When the eccentric wheel 108 rotates eccentrically, it can drive the right front baffle 1 to move up and down so as to adjust the size of the gap H. The cardboard conveying device is also provided with a gantry (not shown) straddling the conveying mechanism 100, and the Y-axis eccentric shaft 180 is installed on the gantry. The conveying mechanism also includes a mounting seat 200 that can slide left and right along the Y axis. The mounting seat 200 is arranged on the rear side of the right front baffle 1 and is installed on the gantry. The right front baffle 1 has a long hole 101 arranged along the Z axis. It also includes an intermediate transmission member (not shown in the figure), one end of which is fixedly connected to the mounting seat 200 and the other end extends into the long hole 101. The length of the long hole 101 is greater than the outer diameter of the intermediate transmission member; the intermediate transmission member can not only drive the right front baffle 1 to slide left and right together with the long hole 101 when the mounting seat 200 slides left and right to adjust the position relative to the paperboard (at this time, the right front baffle 1 drives the eccentric wheel 108 to slide on the Y-axis eccentric shaft 180), but also can remain stationary in the long hole 101 when the right front baffle 1 is lifted up and down. When the right front baffle 1 is lifted up and down, the intermediate transmission member neither hinders nor follows the lifting and lowering movement of the right front baffle 1 .

[0024] like Figures 4 to 7As shown, the right front baffle 1 includes a base 10, the swing plate 11 is swingably arranged at the lower part of the base 10, and when viewed along the Y-axis direction, a first pressure-bearing surface 1101 is arranged at a position located on the swing plate 11 and at the rear side of the rotation center axis of the Y-axis rotating shaft 12, and a second pressure-bearing surface 1110 is arranged at a position located on the swing plate 11 and at the front side of the rotation center axis of the Y-axis rotating shaft 12; and also includes a first push adjustment member 2 and a second push adjustment member 1 which can move up and down respectively. 3, the first push adjustment member 2 is used to press the first pressure-bearing surface 1101, so that the swing plate 11 swings forward around the Y-axis 12, the upper part of the second push adjustment member 13 is hidden in the base 10, and the lower part can extend out of the base 10 to press on the second pressure-bearing surface 1110, so that the swing plate 11 swings backward around the Y-axis 12, and the first push adjustment member 2 and the second push adjustment member 13 cooperate to form the adjustment and positioning of the swing plate 11. Among them, the first push adjustment member 2 can be installed on the base 10 or other components separated from the base 10. The "front side" and "rear side" are relative. Taking the base 10 as a reference, if one side is defined as the "rear side", the other side is the "front side". If there is no special explanation, the same meaning is used below. In addition, since the upper part of the second push-adjusting member 13 is hidden in the base 10, the front side of the base 10 will not be uneven due to the arrangement of the second push-adjusting member 13. This provides a technical basis for using the front side of the swing plate 11 as a positioning reference surface for the paperboard.

[0025] Further, the first push adjustment member 2 includes an upper adjustment member 21 and a lower adjustment member 22, and the upper adjustment member 21 and the lower adjustment member 22 are detachably connected together through a mortise and tenon structure. When viewed along the Y-axis direction, the upper adjustment member 21 and the lower adjustment member 22 are respectively slidably engaged with the rear side surface of the base 10, the upper adjustment member 21 is used to connect the driving device, and the lower adjustment member 22 is used to push the first pressure-bearing surface 1101. Among them, the following sliding engagement structure can be adopted between the upper adjustment member 21, the lower adjustment member 22 and the base 10: a sliding groove 17 is provided on the rear side surface of the base 10, and the upper adjustment member 21 and the lower adjustment member 22 are integrally accommodated in the sliding groove 17 and blocked by a pair of notch bending walls 171 of the sliding groove 17 that are arranged separately, so that the upper adjustment member 21 and the lower adjustment member 22 are respectively slidably engaged with the sliding groove 17. Alternatively, dovetail grooves are provided on the upper adjusting member 21 and the lower adjusting member 22, and dovetail protrusions are provided on the rear side surface of the base 10, and the upper adjusting member 21 and the lower adjusting member 22 are respectively slidably clamped on the dovetail protrusions through the dovetail grooves. The above-mentioned sliding clamping structure can make it difficult for the upper adjusting member 21 and the lower adjusting member 22, which are detachably connected together through the mortise and tenon structure, to separate in the front-to-back direction in the process of bearing the top thrust, and has the function of assisting the upper adjusting member 21 and the lower adjusting member 22 to maintain connection. The provision of the sliding clamping structure and the mortise and tenon structure greatly facilitates the installation and replacement operations of the upper adjusting member 21 and the lower adjusting member 22.

[0026] The driving device includes an upper mounting seat 31, a lower mounting seat 32 and a first adjusting screw 3, the upper mounting seat 31 is mounted on the base 10, the lower mounting seat 32 is mounted on the upper adjusting member 21, and the first adjusting screw 3 is rotatably fixed on the upper mounting seat 31 and is threadedly connected with the lower mounting seat 32; when the first adjusting screw 3 is rotated, the first adjusting screw 3 can drive the first push adjusting member 2 to move up and down along the Z axis through the lower mounting seat 32.

[0027] A second adjusting screw 14 is threadedly connected to the base 10. The second adjusting screw 14 is located above the second pushing adjusting member 13. A spring 15 is pressed between the second adjusting screw 14 and the second pushing adjusting member 13. When the second adjusting screw 14 is rotated, the second pushing adjusting member 13 can be pressed downward by the spring 15 and the downward pressing force can be transmitted to the second pushing adjusting member 13. In this way, by rotating the second adjusting screw 14, the downward pressing position of the second pushing adjusting member 13 can be adjusted by the spring 15, so that the swing plate 11 swings backward around the Y-axis 12. Furthermore, viewed along the Y-axis direction, an operation through hole 16 is further provided on the base 10, one end of the operation through hole 16 is connected to the front side of the base 10, and the other end is connected to the lower end surface of the base 10 and faces the second pressure-bearing surface 1110, the second adjustment screw 14, the spring 15, and the second push adjustment member 13 are sequentially arranged in the operation through hole 16, and the second adjustment screw 14 is threadedly screwed into the operation through hole 16. In order to facilitate the screwing of the second adjustment screw 14, the operation through hole 16 can be arranged obliquely, and the head of the second adjustment screw 14 is exposed through the operation through hole 16.

[0028] When the position of the swing plate 11 needs to be adjusted, the specific operation may be: first, loosen the second adjusting screw 14 so that the swing plate 11 can flexibly swing forward around the Y-axis 12. Then, screw the first adjusting screw 3 so that the first push adjusting member 2 presses the first pressure-bearing surface 1101 so that the swing plate 11 swings forward to a suitable position around the Y-axis 12. Finally, tighten the second adjusting screw 14 so that the second push adjusting member 13 is elastically pressed by the spring 15 so that the second push adjusting member 13 presses against the second pressure-bearing surface 1110 of the swing plate 11, and thus the swing plate 11 is adjusted and positioned.

Claims

1. A cardboard conveying device with a baffle, comprising a conveying mechanism capable of conveying cardboard forward along the X-axis direction, the conveying mechanism comprising a bellows body, a left conveying unit, a right conveying unit and an exhaust device capable of exhausting air from the bellows body to form an adsorption-type negative pressure bellows, the left conveying unit and the right conveying unit are arranged in parallel on the bellows body, and when working, the cardboard is laid flat on the left conveying unit and the right conveying unit and is not only adsorbed but also driven forward by the left conveying unit and the right conveying unit; characterized in that: A pair of front baffles are arranged above the conveying mechanism along the Y-axis direction, wherein a left front baffle is arranged above the left conveying unit, a gap through which a first cardboard can pass is arranged between the left conveying unit and the left front baffle, and a right front baffle is arranged above the right conveying unit, a gap through which a first cardboard can pass is arranged between the right conveying unit and the right front baffle, the left front baffle and the right front baffle are used to block other cardboards stacked on the first cardboard; at least one of the left front baffle and the right front baffle is an adjustment baffle, the adjustment baffle includes a swing plate arranged at the lower part thereof, the swing plate can swing around a Y-axis rotation axis arranged along the Y-axis and can be adjusted and positioned, and the swing plate is used to determine the starting position of the corresponding part of the cardboard when it moves along the X-axis direction.

2. The cardboard conveying device with a baffle according to claim 1, characterized in that: The adjusting baffle comprises a base, the swing plate is swingably arranged at the lower part of the base, and a first pressure-bearing surface is arranged at a position located on the swing plate and at the rear side of the rotation center axis of the Y-axis rotating shaft when viewed along the Y-axis direction, and a second pressure-bearing surface is arranged at a position located on the swing plate and at the front side of the rotation center axis of the Y-axis rotating shaft; the adjusting baffle also comprises a first pushing adjusting member and a second pushing adjusting member which can be moved up and down respectively, the first pushing adjusting member is used to press the first pressure-bearing surface so that the swing plate swings forward around the Y-axis rotating shaft, the upper part of the second pushing adjusting member is hidden in the base, and the lower part can extend out of the base so as to press on the second pressure-bearing surface so that the swing plate swings backward around the Y-axis rotating shaft, and the first pushing adjusting member cooperates with the second pushing adjusting member to form an adjustment and positioning of the swing plate.

3. The cardboard conveying device with a baffle according to claim 2, characterized in that: The first pushing adjustment member includes an upper adjusting member and a lower adjusting member, and the upper adjusting member and the lower adjusting member are detachably connected together by a mortise and tenon structure. When viewed along the Y-axis direction, the upper adjusting member and the lower adjusting member are respectively slidably clamped on the rear side surface of the base, the upper adjusting member is used to connect the driving device, and the lower adjusting member is used to push the first pressure-bearing surface.

4. The cardboard conveying device with a baffle according to claim 3, characterized in that: The driving device includes an upper mounting seat, a lower mounting seat and a first adjusting screw, the upper mounting seat is mounted on the base, the lower mounting seat is mounted on the upper adjusting member, the first adjusting screw is rotatably fixed on the upper mounting seat and is threadedly connected with the lower mounting seat; when the first adjusting screw is rotated, the first adjusting screw can drive the first push adjusting member to move up and down along the Z axis through the lower mounting seat.

5. The cardboard conveying device with a baffle according to claim 2, characterized in that: A second adjusting screw is threadedly connected to the base, and the second adjusting screw is located above the second pushing adjusting member. A spring is pressed between the second adjusting screw and the second pushing adjusting member, and the second pushing adjusting member can be pressed downward by the spring when the second adjusting screw is rotated.

6. The cardboard conveying device with a baffle according to claim 5, characterized in that: Viewed along the Y-axis direction, an operating through hole is also provided on the base, one end of the operating through hole is connected to the front side surface of the base, and the other end is connected to the lower end surface of the base and faces the second pressure-bearing surface, the second adjusting screw, the spring, and the second push adjustment member are arranged in the operating through hole in sequence, and the second adjusting screw is threadedly screwed into the operating through hole.

7. The cardboard conveying device with a baffle according to any one of claims 1 to 6, characterized in that: An eccentric wheel is also provided above the conveying mechanism. The eccentric wheel is in driving connection with the front baffle plate. When the eccentric wheel rotates eccentrically, the front baffle plate can be driven to move up and down.

8. The cardboard conveying device with a baffle according to claim 7, characterized in that: The front baffle has a long hole arranged along the Z axis, and also includes a mounting seat that can slide left and right along the Y axis above the conveying mechanism, and the mounting seat is arranged on the rear side of the front baffle; it also includes an intermediate transmission member, one end of the intermediate transmission member is fixedly connected to the mounting seat, and the other end extends into the long hole, and the length of the long hole is greater than the outer diameter of the intermediate transmission member; the intermediate transmission member can not only combine with the long hole to drive the front baffle to slide left and right when the mounting seat slides left and right, but also remain stationary in the long hole when the front baffle is lifted up and down.

9. The cardboard conveying device with a baffle according to any one of claims 1 to 6, characterized in that: The left conveying unit and the right conveying unit respectively include at least three roller groups arranged in parallel front and back, each roller group is driven by a servo motor alone, and each roller group is provided with a rubber roller. When working, the cardboard is laid flat on the rubber roller and driven forward by the servo motor to drive the rubber roller.

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