Paperboard leading-in device of carton printing machine

Abstract

The utility model relates to the technical field of carton printing machines, in particular to a carton printing machine paperboard leading-in device which comprises a box body provided with a discharging groove. The lifting assembly is arranged in the box body, is used for driving the paperboards to ascend to the same height as the discharging groove, and is provided with a placing table top for placing the paperboards; the pushing piece is arranged on the side, opposite to the paperboard, of the discharging groove. The driving assembly drives the pushing piece to generate pushing force on the paper board, so that the paper board is pushed out of the box body from the discharging groove, the paper board enters a paper feeding part of the printing machine, the pushing piece applies pushing force from the side edge of the paper board, and the pushing piece, the discharging groove and the paper board are located on the same movable plane. The acting force of the pushing piece on the paperboards is not perpendicular to the upper surfaces of the paperboards, so that the adjacent paperboards are not in a compressed state, friction between the paperboards is small, and surface abrasion caused in the movement process of the paperboards can be effectively reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of carton printing machines, in particular to a cardboard introducing device for a carton printing machine. Background Art

[0002] Printing is required in the process of carton production. Printing cartons can display product logos, instructions and promotional information, which plays a role in promoting and popularizing products. A carton printing machine is a device specially used for printing cartons. It mainly consists of a paper feeding unit, a printing group, and a rotary die-cutting group. The paper feeding unit refers to the paper feeding part of the carton printing and die-cutting machine, which is usually composed of two rollers rotating against each other. When feeding, it is necessary to manually place the corrugated cardboard sheets one by one in the gap between the two rollers and feed them into the printing machine through the rollers. In order to improve production efficiency and ensure the accuracy and stability of feeding, some carton printing machines are also equipped with a cardboard introduction device to replace manual automatic feeding.

[0003] After searching, it was found that the Chinese utility model patent with authorization announcement number CN216403192U discloses a cardboard inlet device for a carton printing machine, including: a storage box with an opening at the top, a guide roller arranged at the opening of the storage box, a drive motor for driving the guide roller to rotate, a pallet provided in the storage box for placing cardboard, and a stepping drive cylinder for driving the pallet and cardboard to rise. Its working principle is: the stepping drive cylinder drives the pallet to rise, so that the cardboard at the top of the pallet contacts the guide roller, and then the drive motor drives the guide roller to rotate, and the guide roller brings the cardboard out of the storage box and feeds it into the paper feeding unit of the printing machine.

[0004] The above solution has the following defects: it applies pressure to the cardboard through the guide roller, thereby driving the cardboard to move as the guide roller rotates. This design increases the pressure between adjacent cardboards, resulting in greater friction between adjacent cardboards. When the guide roller rotates and drives the cardboard to move, the adjacent contact surfaces of the cardboards will be worn during the movement, affecting the aesthetics of the product. Utility Model Content

[0005] In view of this, the purpose of the present invention is to provide a cardboard inlet device for a carton printing machine to solve the technical problem that the cardboard inlet device of the existing carton printing machine easily causes wear on the cardboard surface when feeding the cardboard.

[0006] Based on the above purpose, the utility model provides a cardboard inlet device for a carton printing machine, comprising:

[0007] A box body is provided with a discharge chute;

[0008] A lifting assembly provided in the box body for driving the cardboard to rise to the same height as the discharge chute, the lifting assembly having a placement table for placing the cardboard;

[0009] A pushing member is provided on a side of the discharge chute opposite to the paperboard, wherein the pushing member, the discharge chute and the paperboard are located on the same movable plane;

[0010] The driving assembly is used to drive the pushing member to perform reciprocating motion, so as to push the cardboard out of the box body from the discharge slot through the pushing member, so that the cardboard enters the paper feeding part of the printing press.

[0011] As a preferred technical solution of the present invention, the pushing member includes: a push rod, which is slidably matched with a sliding groove provided on the surface of the box body.

[0012] As a preferred technical solution of the present utility model, the drive assembly includes:

[0013] a motor connected to the box;

[0014] a gear connected to an output shaft of the motor;

[0015] A rack meshed with the gear, the rack being connected to the push rod.

[0016] As a preferred technical solution of the present invention, a recessed groove is provided on the surface of the push rod, the rack is fixed in the recessed groove, and the depth of the recessed groove is greater than or equal to the height of the rack.

[0017] As a preferred technical solution of the present invention, there are two push rods, and correspondingly, there are also two gears. The two push rods are symmetrically arranged with respect to the front and back of the box body, a connecting rod is arranged between the two push rods, and a connecting shaft is arranged between the two gears.

[0018] As a preferred technical solution of the present utility model, the lifting assembly includes:

[0019] a movable plate provided in the box;

[0020] The base is connected to the box body and the output end of the electric push rod is connected to the bottom end of the movable plate.

[0021] As a preferred technical solution of the present invention, the lifting assembly further comprises: a carrying plate detachably connected to the movable plate, and the placement table is the upper surface of the carrying plate.

[0022] As a preferred technical solution of the present invention, side panels are respectively provided on the front and rear sides of the carrying plate, and a limiting space for the front and rear sides of the cardboard is formed between the two side panels.

[0023] As a preferred technical solution of the present invention, a positioning block is provided at the bottom end of the carrying plate, and the positioning block is engaged with a positioning groove provided at the upper end of the movable plate.

[0024] As a preferred technical solution of the present invention, a top groove is provided at the upper end of the box body, a side groove is provided at the front side of the box body, and a box door is rotatably provided at the side groove.

[0025] The beneficial effects of the present invention are as follows: the present invention drives the pushing member through the driving assembly to generate a thrust on the cardboard, thereby pushing the cardboard out of the discharge chute and into the paper feeding part of the printing press. Since the pushing member applies thrust from the side of the cardboard, and the pushing member, the discharge chute and the cardboard are located in the same movable plane, the force exerted by the pushing member on the cardboard is not perpendicular to the upper surface of the cardboard, so adjacent cardboards will not be in a compressed state, and the friction between the cardboards is small, thereby effectively reducing the surface wear caused by the cardboard during movement and improving the appearance quality of the carton. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] In order to more clearly illustrate the technical solutions in the present invention or the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only for the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0027] Figure 1 This is a schematic diagram of the external three-dimensional structure of the utility model;

[0028] Figure 2 This is a schematic diagram of the external three-dimensional structure of the utility model;

[0029] Figure 3 This is a schematic diagram of the three-dimensional structure of the load-bearing plate, movable plate, push rod and motor of the utility model;

[0030] Figure 4 It is a schematic diagram of the three-dimensional structure of the push rod, gear and rack bottom end of the utility model.

[0031] The markings in the figure are: 1. Box body; 2. Mounting plate; 3. Mounting hole; 4. Electric push rod; 5. Movable plate; 6. Load-bearing plate; 7. Positioning block; 8. Positioning groove; 9. Discharge chute; 10. Push rod; 11. Rack; 12. Fixed plate; 13. Motor; 14. Gear; 15. Top groove; 16. Side groove; 17. Box door; 18. Recessed groove; 19. Connecting rod; 20. Connecting shaft; 21. Slide groove. DETAILED DESCRIPTION

[0032] In order to make the purpose, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with specific embodiments.

[0033] It should be noted that, unless otherwise defined, the technical or scientific terms used in this utility model should have the usual meanings understood by people with ordinary skills in the field to which this utility model belongs. The "first", "second" and similar words used in this utility model do not indicate any order, quantity or importance, but are only used to distinguish different components. "Include" or "comprise" and similar words mean that the elements or objects appearing before the word include the elements or objects listed after the word and their equivalents, without excluding other elements or objects. "Connect" or "connected" and similar words are not limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect. "Up", "down", "left", "right" and the like are only used to indicate relative position relationships. When the absolute position of the object being described changes, the relative position relationship may also change accordingly.

[0034] like Figure 1 and Figure 2 As shown, a cardboard inlet device for a carton printing machine includes:

[0035] A box body 1 is provided with a discharge chute 9;

[0036] A lifting assembly provided in the box body 1 for driving the cardboard to rise to the same height as the discharge chute 9, and the lifting assembly has a placement table for placing the cardboard;

[0037] A pusher, which is provided on the side of the discharge chute 9 opposite to the paperboard, and the pusher, the discharge chute 9 and the paperboard are located in the same movable plane;

[0038] A driving assembly is used to drive the pushing member to reciprocate so as to push the paperboard out of the discharge chute 9 and out of the box body 1 through the pushing member so that the paperboard enters the paper feeding part of the printing press;

[0039] The adoption of the above technical solution can reduce the wear of the cardboard during the transportation process. When in use, the cardboard to be printed is neatly stacked on the placement table of the lifting component, and the lifting component is started to drive the cardboard to the same height as the discharge chute 9. The driving component drives the pushing member to generate a thrust on the cardboard, thereby pushing the cardboard out of the discharge chute 9 and pushing the cardboard into the box body 1, so that the cardboard enters the paper feeding part of the printing press. Subsequently, the lifting component rises the height of one cardboard again and lifts the next cardboard to the same height as the discharge chute 9 to achieve automatic introduction. Since the pushing member applies thrust from the side of the cardboard, and the pushing member, the discharge chute 9 and the cardboard are located in the same movable plane, the force of the pushing member on the cardboard is not perpendicular to the upper surface of the cardboard. Therefore, adjacent cardboards will not be in a compressed state, and the friction between the cardboards is small. Therefore, it can effectively reduce the surface wear caused by the cardboard during movement and improve the appearance quality of the carton.

[0040] like Figure 2 As shown, in this embodiment, the pushing member includes: a push rod 10, which is slidably engaged with a slide groove 21 provided on the surface of the box body 1;

[0041] like Figure 3 As shown, in this embodiment, the driving assembly includes: a fixed plate 12 connected to the box body 1, and a motor 13 is installed on the fixed plate 12; a gear 14 connected to the output shaft of the motor 13; a rack 11 meshing with the gear 14, and the rack 11 is connected to the push rod 10;

[0042] The above technical solution can drive the cardboard transportation. When in use, the motor 13 is started to drive the gear 14 to rotate forward. The gear 14 cooperates with the rack 11 to drive the push rod 10 to slide along the slide groove 21, so that the push rod 10 pushes the cardboard to move, and the cardboard is pushed out through the discharge chute 9. Then, the motor 13 drives the gear 14 to rotate in the opposite direction, thereby driving the push rod 10 to reset.

[0043] like Figure 4 As shown, in this embodiment, a recessed groove 18 is formed on the surface of the push rod 10, and the rack 11 is fixed in the recessed groove 18. The depth of the recessed groove 18 is greater than or equal to the height of the rack 11.

[0044] The above technical solution can prevent the raised portion of the rack 11 from rubbing against the cardboard, thereby preventing the cardboard surface from being worn. By providing the recessed groove 18 , the rack 11 can be accommodated in the recessed groove 18 , preventing the cardboard from contacting the rack 11 .

[0045] like Figure 4 As shown, in this embodiment, two push rods 10 are provided, and correspondingly, two gears 14 are also provided. The two push rods 10 are symmetrically arranged front and back about the box body 1, a connecting rod 19 is provided between the two push rods 10, and a connecting shaft 20 is provided between the two gears 14;

[0046] The above technical solution can stably push the cardboard to move. Since most cardboards are relatively wide, it is not stable to push them with only one push rod 10. Therefore, two push rods 10 are set to apply force to both ends of the cardboard to ensure that the cardboard is evenly stressed and prevent the cardboard from skewing during transportation.

[0047] like Figure 2 As shown, in this embodiment, the lifting assembly includes: a movable plate 5 provided in a box body 1; an electric push rod 4 whose base is connected to the box body 1, the output end of the electric push rod 4 is connected to the bottom end of the movable plate 5, and a supporting plate 6 detachably connected to the movable plate 5, and the placement table is the upper surface of the supporting plate 6;

[0048] like Figure 1 and Figure 2 As shown, in this embodiment, a top groove 15 is provided at the upper end of the box body 1, a side groove 16 is provided at the front side of the box body 1, and a box door 17 is rotatably provided at the side groove 16;

[0049] The above technical solution can facilitate the replacement of cardboard. When the cardboard needs to be replaced, open the box door 17, remove the empty carrier plate 6 from the movable plate 5, and then place the carrier plate 6 loaded with cardboard on the upper end of the movable plate 5, close the box door 17, and complete the loading.

[0050] like Figure 3 As shown, in this embodiment, side panels are provided on the front and rear sides of the carrier plate 6, and a limiting space for the front and rear sides of the cardboard is formed between the two side panels;

[0051] The above technical solution can ensure that the cardboard will not fall off the carrying plate 6 during transportation, thereby improving the stability of transportation.

[0052] like Figure 3 As shown, in this embodiment, a positioning block 7 is provided at the bottom end of the carrying plate 6, and the positioning block 7 engages with a positioning groove 8 provided at the upper end of the movable plate 5;

[0053] The above technical solution can ensure that the movable plate 5 and the supporting plate 6 are stably connected, prevent the two from moving relative to each other, and ensure that the cardboard and the discharge chute 9 are aligned.

[0054] like Figure 1 As shown, in this embodiment, a mounting plate 2 is provided on the side of the box body 1, and a mounting hole 3 is opened on the mounting plate 2. A bolt is provided in the mounting hole 3, and the threaded end of the bolt is embedded in the workbench of the printing press;

[0055] By adopting the above technical solution, the box body 1 can be detachably mounted on the printing press.

[0056] Working principle: Place the cardboard to be printed neatly on the carrier plate 6, open the box door 17, align the positioning block 7 at the bottom of the carrier plate 6 with the positioning slot 8 at the upper end of the movable plate 5 and insert it, close the box door 17, start the electric push rod 4 to drive the cardboard to the same height as the discharge chute 9, start the motor 13 to drive the gear 14 to rotate forward, the gear 14 cooperates with the rack 11 to drive the push rod 10 to slide along the slide 21, so that the push rod 10 pushes the cardboard to move, and the cardboard is pushed out through the discharge chute 9. Subsequently, the motor 13 drives the gear 14 to rotate in the opposite direction, thereby driving the push rod 10 to reset, thereby pushing the cardboard out of the discharge chute 9 and the box body 1, so that the cardboard enters the paper feeding part of the printing press, and then the electric push rod 4 drives the movable plate 5 to rise to the height of one cardboard again, and lifts the next cardboard to the same height as the discharge chute 9, thereby realizing the automatic introduction of the cardboard.

[0057] Those skilled in the art should understand that the discussion of any of the above embodiments is merely illustrative and is not intended to imply that the scope of the present invention (including the claims) is limited to these examples. Within the scope of the present invention, the technical features in the above embodiments or different embodiments may be combined, the steps may be implemented in any order, and there are many other variations of the different aspects of the present invention as described above, which are not provided in detail for the sake of simplicity.

[0058] The present invention is intended to cover all such substitutions, modifications and variations that fall within the broad scope of the appended claims. Therefore, any omissions, modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention shall be included in the scope of protection of the present invention.

Claims

1. A cardboard inlet device for a carton printing press, comprising: A box body (1) is provided with a discharge chute (9); A lifting assembly provided in the box (1) for driving the cardboard to rise to the same height as the discharge chute (9), the lifting assembly having a placement table for placing the cardboard; Characterized in that, the cardboard introducing device further comprises: A pushing member is provided on a side of the discharge chute (9) opposite to the paperboard, wherein the pushing member, the discharge chute (9) and the paperboard are located on the same movable plane; A driving assembly is used to drive the pushing member to perform reciprocating motion, so as to push the paperboard out of the box body (1) from the discharge chute (9) through the pushing member, so that the paperboard enters the paper feeding part of the printing press.

2. The cardboard introduction device for a carton printing press according to claim 1, characterized in that: The pushing member comprises a push rod (10) which is slidably matched with a slide groove (21) provided on the surface of the box body (1).

3. The cardboard introduction device for a carton printing machine according to claim 2, characterized in that: The drive assembly includes: a motor (13) connected to the housing (1); a gear (14) connected to an output shaft of the motor (13); A rack (11) meshed with the gear (14), the rack (11) being connected to the push rod (10).

4. The cardboard introduction device for a carton printing press according to claim 3, characterized in that: A recessed groove (18) is provided on the surface of the push rod (10), and the rack (11) is fixed in the recessed groove (18). The depth of the recessed groove (18) is greater than or equal to the height of the rack (11).

5. The cardboard introduction device for a carton printing machine according to claim 4, characterized in that: There are two push rods (10), and correspondingly, there are also two gears (14). The two push rods (10) are symmetrically arranged front and back with respect to the box body (1). A connecting rod (19) is arranged between the two push rods (10), and a connecting shaft (20) is arranged between the two gears (14).

6. The cardboard introduction device for a carton printing press according to any one of claims 1 to 5, characterized in that: The lifting assembly comprises: A movable plate (5) provided in the box (1); The base is connected to the electric push rod (4) of the box body (1), and the output end of the electric push rod (4) is connected to the bottom end of the movable plate (5).

7. The cardboard introduction device for a carton printing press according to claim 6, characterized in that: The lifting assembly further comprises: a bearing plate (6) detachably connected to the movable plate (5), and the placement table is the upper surface of the bearing plate (6).

8. The cardboard introduction device for a carton printing press according to claim 7, characterized in that: Side panels are respectively provided on the front and rear sides of the carrier plate (6), and a limiting space for the front and rear sides of the cardboard is formed between the two side panels.

9. The cardboard introduction device for a carton printing press according to claim 8, characterized in that: A positioning block (7) is provided at the bottom end of the supporting plate (6), and the positioning block (7) is engaged with a positioning groove (8) provided at the upper end of the movable plate (5).

10. The cardboard introduction device for a carton printing press according to claim 9, characterized in that: A top groove (15) is provided at the upper end of the box body (1), a side groove (16) is provided at the front side of the box body (1), and a box door (17) is rotatably provided at the side groove (16).

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