Paperboard bending machine

Abstract

The invention relates to the technical field of paper product processing, and particularly discloses a paperboard bending machine which comprises a fixed base. Avoiding extension plates are symmetrically and fixedly connected to the fixed base; a reciprocating unit is arranged on the avoiding extension plate; a pressing bending plate is detachably and fixedly connected to the reciprocating unit; a bending forming groove is formed in the position, corresponding to the pressing bending plate, of the fixed base. An avoiding groove is formed in the fixed base; a rolling unit is arranged in the avoiding groove; a paperboard to be bent is placed on the fixing base, the bottom face of the formed carton is aligned with the bending forming groove, then the reciprocating unit is controlled to drive the pressing bending plate to descend and enter the bending forming groove, the paperboard is extruded to be bent and formed, then the rolling unit acts, the last fold of the paperboard is extruded, and the carton is bent and formed. And therefore, complete bending of the paperboard is achieved, the paperboard can be manually folded into a carton, efficient bending action is achieved, and the problem that an existing bending machine is low in efficiency is solved.

Description

Technical Field

[0001] The invention relates to the technical field of paper product processing, in particular to a paperboard bending machine. Background Art

[0002] Carton is a widely used packaging material, mainly used to protect and transport various commodities. Cartons are generally made by bending cardboard and then fixing it into a box shape for storage. Therefore, a cardboard bending machine was born, which can quickly bend cardboard in batches.

[0003] The Chinese utility model patent with publication number CN220314318U disclosed a bending machine for carton cardboard processing on January 9, 2024, including a base, support legs fixedly installed at the four corners of the lower end of the base, vertical plates fixedly installed on both sides of the upper end of the base, and support plates fixedly installed on the top of the vertical plates. Two groups of vertical sliding grooves are opened in the center of the top of the base, and two groups of bending tables are slidably connected to the top of the two groups of vertical sliding grooves. An adjustment component for adjusting the gap between the two groups of bending tables and the vertical sliding grooves is arranged between the two groups of bending tables and the vertical sliding grooves. A bending roller is arranged above the bending table, and a first turntable is fixedly installed on both sides of the bending roller. A mounting plate is rotatably connected to one side of the first turntable through a rotating shaft, and a limiting component for limiting the angle direction of the bending roller is arranged on the outer side of the mounting plate. The utility model fixes and limits the bending shape on the bending roller through the limiting component, and adjusts the gap between the bending tables through the adjusting component to prevent the downward impact of the bending roller from causing damage.

[0004] However, the above disclosed solutions have the following shortcomings: the bending machine of the prior art still requires manual transfer of the position and angle of the cardboard to bend a cut continuous six-view cardboard and fix it into a box body, so that the efficiency and accuracy of the bending cannot be guaranteed. Summary of the invention

[0005] The purpose of the present invention is to solve the above technical problems and provide a cardboard bending machine.

[0006] In order to achieve the above object, the present invention adopts the following technical solutions:

[0007] The technical solution adopted by the present invention to solve its technical problems is: a cardboard bending machine described in the present invention comprises a fixed base; an avoidance extension plate is symmetrically fixedly connected to the fixed base; a reciprocating unit is arranged on the avoidance extension plate; a pressing and bending plate is detachably fixedly connected to the reciprocating unit; a bending forming groove is provided on the fixed base corresponding to the pressing and bending plate; an avoidance groove is provided on the fixed base; a rolling unit is arranged in the avoidance groove; when working, the cardboard to be bent is placed on the fixed base, and the bottom surface of the formed carton is aligned with the bending forming groove, and then the reciprocating unit is controlled to drive the pressing and bending plate to descend into the bending forming groove, thereby squeezing the cardboard for bending and forming, and then the rolling unit is activated to squeeze the last crease of the cardboard, thereby realizing complete bending of the cardboard, which can be manually folded into a carton, realizing efficient bending action, and solving the problem of low efficiency of existing bending machines.

[0008] Furthermore, the reciprocating unit includes a pressing cylinder and a limiting column; the pressing cylinder and the limiting column are fixedly connected to the avoidance extension plate; a horizontal connecting plate is slidably sleeved on the limiting column; the horizontal connecting plate is fixedly connected to the upper end of the pressing cylinder; when working, the pressing cylinder is connected to an external air source to perform up and down reciprocating motion, thereby driving the horizontal connecting plate and the pressing and bending plate to move up and down, so that the pressing and bending plate moves up and down in the bending forming groove, so that after the cardboard is placed on the upper surface of the fixed base and the bottom surface is aligned with the bending forming groove, the carton can be bent and formed, and efficient bending and forming is achieved through the high-speed reciprocating motion of the cylinder, solving the problem of low efficiency of existing bending machines.

[0009] Furthermore, the rolling unit includes a bending roller; the bending roller is rotatably connected in the avoidance groove; a three-way pipe is rotatably inserted in the bending roller; a rolling cylinder is fixedly connected to the three-way pipe; the end of the rolling cylinder is fixedly connected to a first connecting seat; the first connecting seat is hingedly connected to a second connecting seat; the second connecting seat is fixedly connected to the avoidance groove; the rolling cylinder is fixedly connected to a third connecting seat; the third connecting seat is connected to an elastic member; the lower end of the elastic member is fixedly connected to a fourth connecting seat; the fourth connecting seat is fixedly connected to the avoidance groove; when working, the bending roller is pushed forward by the rolling cylinder to exceed the avoidance groove, and under the pulling force of the elastic member, the bending roller always exerts force downward to roll and reaches the top of the bending forming groove, thereby squeezing the cardboard in a vertical state at this time, thereby squeezing the cardboard in the vertical state to become horizontal, thereby realizing the bending of the five sides of the cardboard, and the cardboard can be smoothly folded into a carton at this time, solving the problem of low efficiency of the existing bending machine.

[0010] Furthermore, a storage tank is provided in the fixed base; an air pump is fixedly connected to the storage tank; when working, the air pump can provide a high-pressure air source to the pressing cylinder and the rolling cylinder, and the actions of the pressing cylinder and the rolling cylinder can be controlled in conjunction with the solenoid valve, thereby realizing the functions of pressing and lifting, making the bending of cardboard more efficient and solving the problem of low efficiency of existing bending machines.

[0011] Furthermore, the pressing and bending plates are formed by a plurality of combinations; when working, the pressing and bending plates formed by the plurality of combinations can adapt to cartons with different depths on the bottom of the box body, thereby realizing multi-purpose use of one machine and adapting to the bending of a plurality of cardboards, thus solving the problem of low efficiency of existing bending machines.

[0012] Furthermore, the gap between the pressing and bending plate and the bending forming groove is matched with the thickness of the cardboard; during operation, the gap data is controlled to be equal to the thickness of the cardboard by matching the gap between the pressing and bending plate and the bending forming groove, so that after the pressing and bending plate is inserted into the bending forming groove, the bottom surface of the formed carton can be pressed, driving the four side surfaces to be vertical, thereby realizing the pressing and bending of the four sides of the cardboard at one time, thereby greatly improving the bending efficiency.

[0013] Furthermore, a depth adjustment plate is slidably inserted in the bending forming groove; when working, the number of depth adjustment plates placed in the bending forming groove is adjusted according to the depth requirement of the forming box, so as to adapt it, thereby making the bending more precise and efficient, solving the problem of low efficiency of existing bending machines.

[0014] The cardboard bending machine provided by the present invention has the following beneficial effects:

[0015] 1. The present invention places the cardboard to be bent on a fixed base, aligns the bottom surface of the formed carton with the bending groove, and then controls the reciprocating unit to drive the pressing bending plate to descend into the bending groove, thereby squeezing the cardboard for bending and forming, and then the rolling unit is activated to squeeze the last crease of the cardboard, thereby achieving complete bending of the cardboard, that is, manually folding into a carton, achieving efficient bending action, and solving the problem of low efficiency of the existing bending machine;

[0016] 2. The present invention presses the cylinder to make an up and down reciprocating motion through an external air source, thereby driving the horizontal connecting plate and the pressing and bending plate to move up and down, so that the pressing and bending plate moves up and down in the bending and forming groove, so that after the cardboard is placed on the upper surface of the fixed base and the bottom surface is aligned with the bending and forming groove, the carton can be bent and formed. The high-speed reciprocating motion of the cylinder realizes efficient bending and forming, which solves the problem of low efficiency of the existing bending machine. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The specific embodiments of the present invention are further described in detail below in conjunction with the accompanying drawings;

[0018] Figure 1 It is a schematic diagram of the first axonometric structure of a cardboard bending machine;

[0019] Figure 2 It is a schematic diagram of the second axonometric structure of a cardboard bending machine;

[0020] Figure 3 It is a schematic diagram of the third axonometric structure of a cardboard bending machine;

[0021] Figure 4 It is a schematic diagram of the actual use of a cardboard bending machine;

[0022] Figure 5 It is a schematic diagram of the fourth axonometric structure of a cardboard bending machine.

[0023] Explanation of the numbers in the figure: 1. Fixed base; 2. Avoidance extension plate; 3. Pressing cylinder; 4. Horizontal connecting plate; 5. Limiting column; 6. Pressing bending plate; 7. Bending forming groove; 8. Depth adjustment plate; 9. Avoidance groove; 10. Bending roller; 11. Three-way pipe; 12. Rolling cylinder; 13. First connecting seat; 14. Second connecting seat; 15. Third connecting seat; 16. Elastic member; 17. Fourth connecting seat; 18. Storage tank; 19. Air pump. DETAILED DESCRIPTION

[0024] It should be understood that the specific embodiments described herein are only used to explain the present invention, and are not used to limit the present invention.

[0025] 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 described embodiments 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 technicians in this field without creative work are within the scope of protection of the present invention.

[0026] It should be noted that all directional indications in the embodiments of the present invention (such as up-down-left-right-front-back...) are only used to explain the relative position relationship - movement status, etc. between the components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly. The connection can be a direct connection or an indirect connection.

[0027] See also Figure 1-5As shown, a cardboard bending machine comprises a fixed base 1; an avoidance extension plate 2 is symmetrically fixed on the fixed base 1; a reciprocating unit is arranged on the avoidance extension plate 2; a pressing and bending plate 6 is detachably fixed on the reciprocating unit; a bending forming groove 7 is provided on the fixed base 1 corresponding to the pressing and bending plate 6; an avoidance groove 9 is provided on the fixed base 1; a rolling unit is arranged in the avoidance groove 9; when working, the cardboard to be bent is placed on the fixed base 1, and the bottom surface of the formed carton is aligned with the bending forming groove 7, and then the reciprocating unit is controlled to drive the pressing and bending plate 6 to descend into the bending forming groove 7, so as to squeeze the cardboard for bending and forming, and then the rolling unit is activated to squeeze the last crease of the cardboard, so as to realize the complete bending of the cardboard, which can be manually folded into a carton, realizing efficient bending action and solving the problem of low efficiency of existing bending machines.

[0028] The reciprocating unit includes a pressing cylinder 3 and a limiting column 5; the pressing cylinder 3 and the limiting column 5 are fixedly connected to the avoidance extension plate 2; a horizontal connecting plate 4 is slidably sleeved on the limiting column 5; the horizontal connecting plate 4 is fixedly connected to the upper end of the pressing cylinder 3; when working, the pressing cylinder 3 is connected to an external air source to perform up and down reciprocating motion, thereby driving the horizontal connecting plate 4 and the pressing and bending plate 6 to move up and down, so that the pressing and bending plate 6 moves up and down in the bending and forming groove 7, so that after the cardboard is placed on the upper surface of the fixed base 1 and the bottom surface is aligned with the bending and forming groove 7, the carton can be bent and formed, and efficient bending and forming is achieved through the high-speed reciprocating motion of the cylinder, which solves the problem of low efficiency of the existing bending machine.

[0029] The rolling unit includes a bending drum 10; the bending drum 10 is connected in a rolling manner in the avoidance groove 9; a three-way pipe 11 is inserted and rotated in the bending drum 10; a rolling cylinder 12 is fixedly connected to the three-way pipe 11; a first connecting seat 13 is fixedly connected to the end of the rolling cylinder 12; a second connecting seat 14 is hinged on the first connecting seat 13; the second connecting seat 14 is fixedly connected to the avoidance groove 9; a third connecting seat 15 is fixedly connected to the rolling cylinder 12; an elastic member 16 is connected to the third connecting seat 15; the lower end of the elastic member 16 A fourth connecting seat 17 is fixedly connected; the fourth connecting seat 17 is fixedly connected in the avoidance groove 9; when working, the bending roller 10 is pushed forward by the rolling cylinder 12 to exceed the avoidance groove 9, and under the pulling force of the elastic member 16, the bending roller 10 always exerts force downward to roll to the top of the bending forming groove 7, thereby squeezing the cardboard in a vertical state at this time, thereby squeezing the vertical cardboard into a horizontal state, thereby realizing the bending of the five sides of the cardboard, and the cardboard can be smoothly folded into a carton at this time, solving the problem of low efficiency of the existing bending machine.

[0030] A storage tank 18 is provided in the fixed base 1; an air pump 19 is fixedly connected to the storage tank 18; when working, the air pump 19 can provide a high-pressure air source to the pressing cylinder 3 and the rolling cylinder 12, and the actions of the pressing cylinder 3 and the rolling cylinder 12 can be controlled in conjunction with the solenoid valve, thereby realizing the functions of pressing and lifting, making the bending of cardboard more efficient and solving the problem of low efficiency of existing bending machines.

[0031] The pressing and bending plate 6 is formed by a plurality of combinations; when working, the pressing and bending plate 6 formed by the plurality of combinations can adapt to cartons with different depths on the bottom of the box body, thereby realizing multi-purpose use of one machine and adapting to the bending of multiple cardboards, solving the problem of low efficiency of existing bending machines.

[0032] The gap between the pressing and bending plate 6 and the bending forming groove 7 is matched with the thickness of the cardboard; during operation, the gap data is controlled to be equal to the thickness of the cardboard by matching the gap between the pressing and bending plate 6 and the bending forming groove 7, so that after the pressing and bending plate 6 is inserted into the bending forming groove 7, the bottom surface of the formed carton can be pressed, and the four side surfaces can be made vertical, so that the four sides of the cardboard can be pressed and bent at one time, thereby greatly improving the bending efficiency.

[0033] A depth adjustment plate 8 is slidably inserted in the bending forming groove 7; when working, the number of depth adjustment plates 8 placed in the bending forming groove 7 is adjusted according to the depth requirement of the forming box, so as to adapt it, thereby making the bending more precise and efficient, solving the problem of low efficiency of existing bending machines.

[0034] By adopting the above scheme, when the present invention is in use, the cardboard to be bent is placed on the fixed base 1, and the bottom surface of the formed carton is aligned with the bending forming groove 7, and then the reciprocating unit is controlled to drive the pressing and bending plate 6 to descend into the bending forming groove 7, thereby squeezing the cardboard for bending and forming, and then the rolling unit is activated to squeeze the last crease of the cardboard, thereby achieving complete bending of the cardboard, and the cardboard can be manually folded into a carton, achieving efficient bending action, and solving the problem of low efficiency of the existing bending machine; the pressing cylinder 3 is connected to an external air source to reciprocate up and down, thereby driving the horizontal connecting plate 4 and the pressing and bending plate 6 to move up and down, so that the pressing and bending plate 6 moves up and down in the bending forming groove 7, so that after the cardboard is placed on the upper surface of the fixed base 1 and the bottom surface is aligned with the bending forming groove 7, the carton can be bent and formed, and the air cylinder 3 is pressed to move up and down, so that the cardboard can be bent and formed. The high-speed reciprocating motion of the cylinder realizes efficient bending and forming, which solves the problem of low efficiency of the existing bending machine; the bending roller 10 is pushed forward by the rolling cylinder 12 to exceed the avoidance groove 9, and under the pulling force of the elastic member 16, the bending roller 10 always exerts force downward to roll and reaches the top of the bending and forming groove 7, thereby squeezing the cardboard in a vertical state at this time, thereby squeezing the vertical cardboard into a horizontal state, thereby realizing the bending of the five sides of the cardboard, and the cardboard can be smoothly folded into a carton at this time, which solves the problem of low efficiency of the existing bending machine; the air pump 19 can provide a high-pressure air source to the pressing cylinder 3 and the rolling cylinder 12, and the solenoid valve can be used to control the actions of the pressing cylinder 3 and the rolling cylinder 12, thereby realizing the functions of pressing and lifting, making the bending of the cardboard more efficient, and solving the problem of low efficiency of the existing bending machine.

[0035] In the description of this specification, the description with reference to the terms "one embodiment", "example", "specific example", etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0036] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments, and the above embodiments and descriptions are only for explaining the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, and these changes and improvements all fall within the scope of the present invention to be protected.

Claims

1. A cardboard bending machine, characterized in that; The invention comprises a fixed base (1); a shunting extension plate (2) is symmetrically fixedly connected to the fixed base (1); a reciprocating unit is provided on the shunting extension plate (2); a pressing and bending plate (6) is detachably fixedly connected to the reciprocating unit; a bending forming groove (7) is provided on the fixed base (1) corresponding to the pressing and bending plate (6); a shunting groove (9) is provided on the fixed base (1); and a rolling unit is provided in the shunting groove (9).

2. The cardboard bending machine according to claim 1, characterized in that: The reciprocating unit comprises a pressing cylinder (3) and a limiting column (5); the pressing cylinder (3) and the limiting column (5) are fixedly connected to the avoidance extension plate (2); a horizontal connecting plate (4) is slidably sleeved on the limiting column (5); and the horizontal connecting plate (4) is fixedly connected to the upper end of the pressing cylinder (3).

3. The cardboard bending machine according to claim 2, characterized in that: The rolling unit comprises a bending roller (10); the bending roller (10) is rollingly connected in an avoidance groove (9); a three-way pipe (11) is rotatably inserted in the bending roller (10); a rolling cylinder (12) is fixedly connected to the three-way pipe (11); a first connecting seat (13) is fixedly connected to the end of the rolling cylinder (12); a second connecting seat (14) is hingedly connected to the first connecting seat (13); the second connecting seat (14) is fixedly connected in the avoidance groove (9); a third connecting seat (15) is fixedly connected to the rolling cylinder (12); an elastic member (16) is connected to the third connecting seat (15); a fourth connecting seat (17) is fixedly connected to the lower end of the elastic member (16); the fourth connecting seat (17) is fixedly connected in the avoidance groove (9).

4. The cardboard bending machine according to claim 3, characterized in that: A storage tank (18) is provided in the fixed base (1); an air pump (19) is fixedly connected in the storage tank (18).

5. The cardboard bending machine according to claim 4, characterized in that: The pressing and bending plates (6) are formed by combining a plurality of them.

6. The cardboard bending machine according to claim 5, characterized in that: The gap between the pressing and bending plate (6) and the bending and forming groove (7) matches the thickness of the paperboard.

7. The cardboard bending machine according to claim 6, characterized in that: A depth adjustment plate (8) is slidably inserted into the bending forming groove (7).

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