Paperboard conveying apparatus with front flap

Abstract

A paperboard conveying device with front stoppers comprises a conveying mechanism capable of conveying paperboard forward along the X-axis direction and a pair of front stoppers arranged left and right along the Y-axis direction above the conveying mechanism, a gap capable of allowing a first paperboard to pass between the conveying mechanism and the front stoppers, and the front stoppers capable of blocking other paperboards stacked above the first paperboard; characterized in that at least one of the front stoppers is an adjusting stopper, the lower part of the adjusting stopper has a swing plate capable of swinging around a Y-axis pivot arranged along the Y-axis direction and capable of being adjusted and positioned, and the swing plate is used to determine the starting position of the corresponding part of the paperboard when moving along the X-axis direction.

Description

Technical Field

[0001] This invention relates to a cardboard conveying device, and more particularly to a cardboard conveying device containing a front baffle. Background Technology

[0002] In the cardboard box production process, the cardboard conveying equipment plays a crucial role. It is responsible for transporting 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 cardboard box production. Patent 201920385376.7 discloses a suction servo paper feeder, including: a limiting mechanism for limiting the peripheral position of stacked cardboard to form a stacking area for placing cardboard, with a paper outlet on one side of the stacking area for the bottom layer of cardboard to be moved and fed out; a paper feeding mechanism including a conveyor wheel assembly disposed on the lower side of the stacking area, the conveyor wheel assembly corresponding to the paper outlet; and a suction device including a bellows disposed on the lower side of the conveyor wheel assembly, the upper side wall of the bellows having ventilation holes to suction the bottom layer of cardboard tightly onto the conveyor wheel assembly, and conveying the bottom layer of cardboard outward through the paper outlet when the conveyor wheel assembly is running. The suction device can suction the bottom layer of cardboard onto the conveyor wheel assembly. As the conveyor wheel assembly rotates, it moves the bottom layer of cardboard out of the paper outlet, achieving the effect of sequentially feeding the stacked cardboard from the bottom layer to the printing area. This realizes automated feeding, improves production efficiency, and reduces costs. The limiting mechanism includes two front baffles arranged side-by-side. Before conveying begins, the cardboard can be positioned using these two front baffles, ensuring that the left and right ends of the cardboard are aligned. However, refer to... Figure 1 (A) Upon understanding, during the conveying process of cardboard a, 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 it cannot move forward in parallel. This will affect the accuracy of subsequent processes such as printing and cutting. Summary of the Invention

[0003] Analysis of the aforementioned cardboard deflection phenomenon reveals that due to numerous factors, including the installation precision of the cardboard conveying equipment, the physical characteristics of the cardboard (thickness and size), and differences in the relative friction between different parts of the same cardboard and the conveying mechanism during transport, one end of the cardboard consistently arrives at the processing station later than the other end during transport. This deflection is highly regular; that is, on the same cardboard conveying equipment at the same speed, the deviation in transport distance between the left and right ends of the same batch of cardboard is essentially consistent. However, the deviation varies when transporting different batches of cardboard on different conveying equipment at different speeds. Therefore, it is necessary to flexibly adjust the starting positions of the left and right ends of the cardboard for different situations.

[0004] To solve the aforementioned technical problems, it is necessary to design an adjusting baffle capable of flexibly adjusting the initial positions of the left and right ends of the cardboard. Therefore, this invention proposes a cardboard conveying device with front baffles, comprising a conveying mechanism for conveying cardboard forward along the X-axis and a pair of front baffles arranged left and right along the Y-axis above the conveying mechanism. A gap is formed between the conveying mechanism and the front baffles to allow the first piece of cardboard to pass through. The front baffles are used to block other cardboard stacked on top of the first piece of cardboard. The device is characterized in that at least one front baffle is an adjusting baffle, and the lower part of the adjusting baffle has a swing plate. The swing plate can swing about a Y-axis rotation axis arranged along the Y-axis and can be adjusted and positioned. The swing plate is used to determine the starting position of the corresponding part of the cardboard when it moves along the X-axis.

[0005] In addition, the present invention also proposes a cardboard conveying device with a front baffle, characterized in that it includes a conveying mechanism for conveying cardboard forward along the X-axis and an adjusting baffle spanning above the conveying mechanism along the Y-axis, wherein a gap is formed between the conveying mechanism and the adjusting baffle to allow the first piece of cardboard to pass through; it also includes a Z-axis rotating shaft arranged along the Z-axis, wherein the Z-axis rotating shaft is located in the middle or right end of the adjusting baffle, the adjusting baffle can swing around the Z-axis rotating shaft and can be adjusted and positioned, the adjusting baffle is used to block other cardboard stacked on top of the first piece of cardboard and to determine the starting position of the left and right ends of the cardboard when moving along the X-axis.

[0006] The term "adjusting positioning" can be understood as the swing plate being driven to swing to adjust its angle position, and after swinging to the ideal angle position, the swing plate being able to be positioned at the ideal angle position.

[0007] The "corresponding part of the cardboard" can be understood as the part of the cardboard that contacts the swing plate after the cardboard is aligned with it. In order to adjust the starting position of the left and right ends of the cardboard when they move along the X-axis, it is generally preferred to arrange the swing plate corresponding to the left or right end of the cardboard, while the other front baffle is arranged corresponding to the other end of the cardboard. The swing plate enables the left and right ends of the cardboard to have different starting positions.

[0008] Compared with the prior art, the beneficial technical effects of the present invention are as follows: due to the provision of the swing plate, the left and right ends of the cardboard can have different starting positions, thereby eliminating the conveying distance deviation between the left and right ends of the cardboard during the cardboard conveying process. When the cardboard is conveyed to the processing station, the left and right ends of the cardboard are basically flush, which is beneficial to improving the processing accuracy.

[0009] Because of the above-mentioned features and advantages, the present invention can be applied to cardboard conveying equipment containing a front baffle. Attached Figure Description

[0010] Figure 1 Figure A) shows the dynamic diagram of the paperboard conveying process without using the adjusting baffle, and Figure B) shows the dynamic diagram of the paperboard conveying process after adjusting the position of the left and right ends of the paperboard using the adjusting baffle. Figure 2 This is a side view (viewed along the Y-axis) of a cardboard conveying device with a front baffle that applies the technical solution of this invention. Figure 3 This is a schematic diagram of the cardboard conveying equipment containing a front baffle from the front view (viewed along the X-axis direction). Figure 4 This is a schematic diagram of the structure of the right front fender 1 from the main view (along the X-axis direction); Figure 5 yes Figure 4 A cross-sectional structural diagram along the AA direction is shown in the figure, with the first jacking adjustment component 2 represented by dashed lines. Figure 6 This is a side view (viewed along the Y-axis) of the adjusting baffle assembly, which is assembled from a right front baffle 1, a first push adjusting component 2, a second push adjusting component 13, a second adjusting screw 14, etc. Figure 7 This is an exploded structural diagram of the adjusting baffle assembly; Figure 8 This is a schematic diagram of a structure that uses an adjusting baffle of the second type to adjust the cardboard; Figure 9 This is a schematic diagram of a third type of adjusting baffle used to adjust the cardboard. Detailed Implementation

[0011] The structure of the cardboard conveying device with a front baffle, which applies the technical solution of the present invention, will be further described below with reference to the accompanying drawings. Except where explicitly stated that they are equivalent or alternative embodiments, the various implementation details disclosed below may be selectively applied or combined in one embodiment even if they are not directly related or synergistic in function.

[0012] like Figure 2 and Figure 3 As shown, a cardboard conveying device including a front baffle includes features capable of being used along the X-axis direction ( Figure 2 The conveying mechanism 100, which conveys cardboard forward in the left-right direction, and the conveying mechanism 100 located above the conveying mechanism 100 along the Y-axis direction ( Figure 3The conveying mechanism 100 has a pair of front baffles (1, 1a) arranged in the left and right directions. A gap H is formed between the conveying mechanism 100 and the front baffles (1, 1a) to allow the first piece of cardboard a1 to pass through. The front baffles (1, 1a) are used to block other cardboard stacked on top of the first piece of cardboard a1. The feature is that at least one of the front baffles is an adjusting baffle. The lower part of the adjusting baffle has a swing plate 11. The swing plate 11 can swing about a Y-axis arranged along the Y-axis and can be adjusted and positioned. The swing plate 11 is used to determine the starting position when the corresponding part of the cardboard moves along the X-axis. Of course, the combination of the pair of adjusting baffles can also be used to jointly determine the starting position when the central area of ​​the cardboard moves.

[0013] The structure of the conveying mechanism 100 can be varied, for example, it can be composed of a conveyor wheel assembly and a suction device disclosed in prior art 201920385376.7.

[0014] The aforementioned "gap H that allows the first piece of cardboard a1 to pass through" is determined based on the thickness of the first piece of cardboard a1. During the cardboard conveying process, multiple stacked pieces of cardboard are typically fed into the conveying mechanism 100 at a time. The first piece of cardboard a1 is the bottom piece, and the thickness of cardboard from the same batch is generally consistent.

[0015] The phrase “at least one of the front baffles is an adjustment baffle” can be understood as meaning that only one or a pair of front baffles are adjustment baffles.

[0016] like Figures 1-3As shown, the following describes the adjustment function of the swing plate 11 in detail, taking a pair of front baffles (1, 1a), namely the left front baffle 1a and the right front baffle 1, with only the right front baffle 1 being an adjustment baffle. The adjustment process is as follows: First, the equipment is debugged, and the swing plate 11 is in the initial position (i.e., positioned in the natural vertical position). Multiple stacked cardboard pieces are placed on the conveying mechanism 100. The first cardboard piece a1 is arranged according to the gap H and is not aligned with the front baffles (1, 1a), while the front edges of the other cardboard pieces stacked on top of the first cardboard piece a1 are aligned with the pair of front baffles (1, 1a). At this time, the left and right ends of the other cardboard pieces located on top of the first cardboard piece a1 are flush. Then, the conveying mechanism 100 is started and the cardboard a is conveyed forward at the speed of regular cardboard conveying. Due to the installation accuracy of the cardboard conveying equipment itself, the physical characteristics of the cardboard a such as its thickness and size, and the differences in the relative friction between different parts of the same cardboard a and the conveying mechanism 100 during the conveying process, the left end of each cardboard a always lags behind the right end during the conveying process. The conveying distance deviation L between the left and right ends of other cardboards located on the first cardboard a1 is measured when they reach the post-processing station, 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 12 in the opposite direction of cardboard transport and is adjusted and positioned as follows. Figure 1 As shown in (B), the right end of cardboard a is moved back L1 relative to its left end. Thus, when the other cardboard pieces on the first cardboard a1 conveyed by the conveying mechanism 100 reach the next workstation, their left and right ends are basically aligned. If the opposite occurs, and the right end of each cardboard piece always lags behind the left end during conveying, it is necessary to adjust the swing plate 11 of the right front baffle 1 to swing around the Y-axis 12 in the cardboard transport direction. Alternatively, in other embodiments, the lower parts of a pair of front baffles (1, 1a) may each have a swing plate 11, allowing for flexible adjustment of the left and right swing plates 11 to adjust the starting positions of the cardboard's left and right ends when moving along the X-axis. Or, alternatively, only the lower part of the left adjusting baffle 1a may have a swing plate 11, which flexibly determines the starting position of the left end of cardboard a when moving along the X-axis.

[0017] like Figure 2As shown, both the left front baffle 1a and the right front baffle 1 are equipped with mechanisms for sliding left and right along the Y-axis and for lifting up and down along the Z-axis. The left-right sliding mechanism and the lifting up and down mechanism of the right front baffle 1 will be described below as examples. Above the conveying mechanism 100, there is also a Y-axis eccentric shaft 180 arranged along the Y-axis 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 driving connection. When the eccentric wheel 108 rotates eccentrically, it can drive the right front baffle 1 to move up and down, thereby adjusting the size of the gap H. The cardboard conveying equipment is also equipped with a gantry frame (not shown in the figure) spanning above the conveying mechanism 100, and the Y-axis eccentric shaft 180 is mounted on the gantry frame. Above the conveying mechanism is a mounting base 200 capable of sliding left and right along the Y-axis. The mounting base 200 is located behind the right front baffle 1 and is mounted on the gantry. The right front baffle 1 has an elongated hole 101 arranged along the Z-axis. An intermediate transmission member (not shown in the figure) is also included. One end of the intermediate transmission member is fixedly connected to the mounting base 200, and the other end extends into the elongated hole 101. The length of the elongated hole 101 is greater than the outer diameter of the intermediate transmission member. The intermediate transmission member can not only engage with the elongated hole 101 to drive the right front baffle 1 to slide left and right together when the mounting base 200 slides left and right (at which time the right front baffle 1 drives the eccentric wheel 108 to slide on the Y-axis eccentric shaft 180), but also remain stationary within the elongated hole 101 when the right front baffle 1 moves up and down. When the right front baffle 1 moves up and down, the intermediate transmission member neither obstructs nor follows the movement of the right front baffle 1.

[0018] like Figures 4-7 As shown, the right front baffle 1 includes a base 10, and the swing plate 11 is sway-backward on the base 10 via a Y-axis rotation shaft 12. Viewed along the Y-axis, the swing plate 11 has a first bearing surface 1101, which is offset behind the rotation center axis of the Y-axis rotation shaft 12. It also includes a first push-adjusting member 2 that can move up and down, which presses against the first bearing surface 1101 to cause the swing plate 11 to swing forward around the Y-axis rotation shaft 12. The first push-adjusting member 2 can be installed on the base 10 or other components separate from the base 10. The terms "front side" and "rear side" are relative. Using the base 10 as a reference, if one side is defined as the "rear side," the opposite side is the "front side." Unless otherwise specified, the same meaning will be used below.

[0019] like Figure 7As shown, the first push adjustment component 2 includes an upper adjustment component 21 and a lower adjustment component 22 detachably connected together, with the lower adjustment component 22 having a smaller height than the upper adjustment component 21. The upper adjustment component 21 is used to connect to the drive device, and the lower adjustment component 22 is used to press against the first pressure surface 1101. Thus, because the lower adjustment component 22 is smaller in height than the upper adjustment component 21, when the lower adjustment component 22 bears the push force from the swing plate 11, compared to the first push adjustment component 2 with its integrated structure, the connection point between the upper adjustment component 21 and the lower adjustment component 22 is O. The lever arm between the force-bearing point on the lower adjustment component 22 and the connection point O is shorter, making it more capable of withstanding larger push forces and less prone to breakage. Moreover, even if it breaks, the cost of replacing the lower adjustment component 22 later is lower. Furthermore, the upper adjusting member 21 and the lower adjusting member 22 are detachably connected together via a mortise and tenon structure. Viewed along the Y-axis, the upper adjusting member 21 and the lower adjusting member 22 are slidably engaged with the rear side of the base 10. One possible sliding engagement structure is as follows: a sliding groove 17 is provided on the rear side of the base 10, and the upper adjusting member 21 and the lower adjusting member 22 are entirely housed within the sliding groove 17 and blocked by a pair of spaced-apart bent walls 171 of the sliding groove 17. Thus, the upper adjusting member 21 and the lower adjusting member 22 are 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 of the base 10. The upper adjusting member 21 and the lower adjusting member 22 are slidably engaged with the dovetail protrusions via the dovetail grooves. The aforementioned sliding snap-fit ​​structure prevents the upper adjusting member 21 and the lower adjusting member 22, which are detachably connected by a mortise and tenon structure, from separating in the front-to-back direction during the process of being subjected to a pushing force, thus helping to maintain the connection between the upper adjusting member 21 and the lower adjusting member 22. The sliding snap-fit ​​structure and the mortise and tenon structure greatly facilitate the installation and replacement of the upper adjusting member 21 and the lower adjusting member 22.

[0020] The driving device includes an upper mounting base 31, a lower mounting base 32, and a first adjusting screw 3. The upper mounting base 31 is mounted on the base 10, and the lower mounting base 32 is mounted on the upper adjusting member 21. The first adjusting screw 3 is rotatably fixed on the upper mounting base 31 and threadedly connected to the lower mounting base 32. When the first adjusting screw 3 is rotated, the first adjusting screw 3 can drive the first pushing adjusting member 2 to move up and down along the Z-axis through the lower mounting base 32.

[0021] like Figure 6 and 7As shown, the swing plate 11 includes a plate body 110 and a rotating shaft connection part 111 disposed on the top of the plate body 110. The rotating shaft connection part 111 is rotatably connected to the base 10 through the Y-axis rotating shaft 12. Viewed along the Y-axis, the first bearing surface 1101 is an inclined surface disposed on the rear side of the plate body 110. A second bearing surface 1110 is disposed on the rotating shaft connection part 111, which is offset in front of the rotation center axis of the Y-axis rotating shaft 12. It also includes a second push adjustment member 13 that can move up and down along the Z-axis. The upper part of the second push adjustment member 13 is hidden in the base 10, while the lower part can extend out of the base 10 and press against the second bearing surface 1110. The first push adjustment member 13 and the second push adjustment member 13 cooperate to form an adjustment and positioning of the swing plate 11. Since the first pressure-bearing surface 1101 is an inclined surface located on the rear side of the board body 110, using this inclined surface as the first pressure-bearing surface provides a technical basis for setting an appropriate vertical extension length for the first pressure-bearing surface 1101. Thus, when the first pushing adjustment member 2 presses against the first pressure-bearing surface 1101, the distance between the pressing point on the first pressure-bearing surface 1101 and the Y-axis rotation shaft 12 can be set relatively large, thereby forming a relatively large lever arm. When the swing plate 11 bears a thrust from front to back, the swing plate 11 can provide stable support and positioning. Therefore, the front side of the swing plate 11 can be preferentially considered as the positioning reference surface of the cardboard. Furthermore, since the second pressure-bearing surface 1110 is located on the rotation shaft connection 111, the front side of the board body 110 will not become uneven due to the setting of the second pressure-bearing surface 1110. Since the upper part of the second push adjustment member 13 is concealed within the base 10, the front side of the base 10 will not become uneven due to the arrangement of the second push adjustment member 13. This provides a technical basis for using the front side of the swing plate 11 as a positioning reference surface for the cardboard. In this embodiment, the adjustment baffles (1, 1a) are located below the base 10, and the front side of the base 10 and the front side of the adjustment baffles (1, 1a) are vertically connected to cooperate in blocking the cardboard.

[0022] A second adjusting screw 14 is threaded onto 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 spring 15 can press the second pushing adjusting member 13 downward and transmit downward pushing force to the second pushing adjusting member 13. In this way, by turning the second adjusting screw 14, the downward pressing position of the second pushing adjusting member 13 can be adjusted by the spring 15, causing the swing plate 11 to swing backward around the Y-axis 12. Furthermore, viewed along the Y-axis, an operating through hole 16 is also provided on the base 10. One end of the operating through hole 16 is connected to the front side of the base 10, and the other end is connected to the lower end face of the base 10 and faces the second pressure-bearing surface 1110. The second adjusting screw 14, the spring 15, and the second pushing adjusting member 13 are arranged sequentially in the operating through hole 16. The second adjusting screw 14 is threaded into the operating through hole 16. To facilitate tightening the second adjusting screw 14, the operating through hole 16 can be arranged at an angle, and the head of the second adjusting screw 14 protrudes through the operating through hole 16.

[0023] When it is necessary to adjust the position of the swing plate 11, the specific operation may be as follows: First, loosen the second adjusting screw 14 so that the swing plate 11 can swing flexibly forward around the Y-axis 12. Then, turn the first adjusting screw 3 so that the first pushing adjusting member 2 presses against the first bearing surface 1101, causing the swing plate 11 to swing forward around the Y-axis 12 to a suitable position. Finally, tighten the second adjusting screw 14 so that the spring 15 elastically presses against the second pushing adjusting member 13, causing the second pushing adjusting member 13 to press against the second bearing surface 1110 of the swing plate 11, thus adjusting and positioning the swing plate 11.

[0024] like Figure 8 and 9 As shown, the present invention also proposes another cardboard conveying device with a front baffle, including a conveying mechanism 100 for conveying cardboard forward along the X-axis and an adjusting baffle 10' spanning above the conveying mechanism 100 along the Y-axis. A gap can be formed between the conveying mechanism 100 and the adjusting baffle 10' to allow the first cardboard a1 to pass through. It also includes a Z-axis rotating shaft 12' arranged along the Z-axis. The Z-axis rotating shaft 12' is located in the middle or right end of the adjusting baffle 10'. The adjusting baffle 10' can swing around the Z-axis rotating shaft 12' and can be adjusted and positioned. The adjusting baffle 10' is used to block other cardboard stacked on top of the first cardboard a1 and to determine the starting position of the left and right ends of the cardboard when moving along the X-axis.

[0025] Furthermore, viewed from the Z-axis direction, it also includes an adjusting seat 13' and an adjusting stud 14' offset to one side of the rotation center axis of the Z-axis rotating shaft 12'. The adjusting stud 14' is threaded onto the adjusting seat 13' and can press against the adjusting baffle 10', causing the adjusting baffle 10' to swing around the Z-axis rotating shaft 12'.

[0026] This implementation method and the appendix Figures 1-7 The biggest difference compared to the shown implementation is that the adjusting baffle 10' extends horizontally across the conveying mechanism 100 along the Y-axis, with a lateral extension length generally around 1m. This allows for simultaneous determination of the starting positions of the left and right ends of the cardboard as it moves along the X-axis, and during this process, the front edge of the cardboard is in line or surface contact with the adjusting baffle 10'. (The attached text is incomplete and requires further context.) Figures 1-7 In the embodiment shown, since the swing plate 11 can only swing around the Y-axis, the adjustment process involves partial contact between the swing plate 11 and the cardboard.

Claims

1. A cardboard conveying device including front baffles, comprising a conveying mechanism for conveying cardboard forward along an X-axis and a pair of front baffles arranged left and right along a Y-axis above the conveying mechanism, wherein a gap is formed between the conveying mechanism and the front baffles to allow a first piece of cardboard to pass through, and the front baffles are used to block other cardboard stacked on top of the first piece of cardboard; characterized in that, At least one front baffle is an adjustable baffle, the lower part of which has a swing plate. The swing plate can swing about a Y-axis rotation axis arranged along the Y-axis and can be adjusted and positioned. The swing plate is used to determine the starting position when the corresponding part of the cardboard moves along the X-axis. The adjustable baffle includes a base, and the swing plate is oscillatingly mounted on the base via the Y-axis rotation axis. Viewed along the Y-axis, the swing plate is provided with a first pressure surface, which is offset behind the rotation center axis of the Y-axis rotation axis. It also includes a first push adjustment member that can move up and down, which is used to press the first pressure surface to make the swing plate move forward about the Y-axis rotation axis. The swing plate includes a plate body and a rotating shaft connection part disposed on the top of the plate body. The rotating shaft connection part is rotatably connected to the base via the Y-axis. Viewed along the Y-axis, the first bearing surface is an inclined surface disposed on the rear side of the plate body. A second bearing surface is disposed on the rotating shaft connection part, offset from the front side of the rotation center axis of the Y-axis. The swing plate also includes a second push adjustment member that can move up and down along the Z-axis. The upper part of the second push adjustment member is concealed in the base, while the lower part can extend out of the base to press against the second bearing surface. The first push adjustment member and the second push adjustment member cooperate to adjust and position the swing plate.

2. The cardboard conveying device with a front baffle according to claim 1, characterized in that, The first push adjustment component includes an upper adjustment component and a lower adjustment component that are detachably connected together. The lower adjustment component is shorter than the upper adjustment component. The upper adjustment component is used to connect to a drive device, and the lower adjustment component is used to press against the first pressure surface.

3. The cardboard conveying device with a front baffle according to claim 2, characterized in that, The upper and lower adjusting components are detachably connected together by a mortise and tenon structure. Viewed along the Y-axis, the upper and lower adjusting components are slidably engaged with the rear side of the base.

4. The cardboard conveying device with a front baffle according to claim 2, characterized in that, The driving device includes an upper mounting base, a lower mounting base, and a first adjusting screw. The upper mounting base is mounted on the base, and the lower mounting base is mounted on the upper adjusting member. The first adjusting screw is rotatably fixed on the upper mounting base and threadedly connected to the lower mounting base. When the first adjusting screw is rotated, the first adjusting screw can drive the first pushing adjusting member to move up and down along the Z-axis through the lower mounting base.

5. The cardboard conveying device with a front baffle according to any one of claims 1-4, characterized in that, A second adjusting screw is threaded onto the base. 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. When the second adjusting screw is rotated, the second pushing adjusting member can be pressed downward by the spring.

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

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