Indentation device for packaging carton production

Abstract

The invention discloses an indentation device for packaging carton production, which belongs to the technical field of packaging carton production and comprises an indentation table, an indentation block, a positioning mechanism and a limiting mechanism. The rotating assembly comprises a first motor and a rotating shell. The moving assembly comprises a lead screw and a second motor. The positioning assembly comprises a positioning plate. The rotating shell can be driven by the first motor to rotate, the indentation block can be adjusted at the angle of + / -90 degrees, the indentation pressure can be monitored in real time through the pressure sensor, 0-90-degree stepless angle adjustment can be achieved through the rotating assembly, the requirements for linear indentation and oblique angle indentation can be met, and the application range of the indentation device is effectively widened; the distance between the two sets of sliding plates and the indentation blocks can be adjusted, the whole series of requirements from small color boxes to large transport boxes are met, the problems that traditional indentation equipment is difficult to adjust, insufficient in precision, low in efficiency and the like are solved, and the indentation equipment is particularly suitable for small-batch and multi-variety flexible production scenes.

Description

Technical Field

[0001] The present invention specifically relates to an indentation device for producing packaging cartons, and belongs to the technical field of packaging carton production. Background Art

[0002] As an indispensable carrier of modern logistics and commodity packaging, the production quality of packaging cartons is directly related to the product protection performance and appearance display effect. Indentation is a key process in carton forming. Its process level and device design directly affect the folding accuracy and structural stability of the carton. The indentation process is one of the core links in the production process of packaging cartons. It realizes the planning of the carton shape and facilitates the folding and forming of the packaging cartons by pressing precise scoring lines on the surface of the cardboard. In the processing flow of packaging cartons, indentation usually constitutes a complete production line together with die-cutting, nailing or gluing, etc. Among them, the indentation quality directly determines the forming accuracy and structural stability of the carton. According to the different types of cartons, the indentation process can be divided into single-pit, double-pit, triple-pit and even quad-pit cartons indentation processing. The subdivision also includes the indentation requirements of various packaging products such as paper boxes, color boxes, color boxes and oversized odd-shaped beer boxes.

[0003] During the creasing process, accurate positioning and reliable fixation of cardboard or semi-finished cartons are prerequisites for ensuring creasing accuracy. Cardboards of different thicknesses and materials have different requirements for creasing depth. For example, corrugated cardboard, composite cardboard, single-layer cardboard, etc. require differentiated creasing treatment. However, when creasing cartons, the creasing device of the existing technology cannot control the depth of the indentation and cannot adjust the spacing between the indentations. This lack of adjustment capability makes it difficult for the same equipment to adapt to diverse production tasks, especially in small-batch, multi-variety production scenarios. The problem of insufficient equipment flexibility is particularly prominent. In addition, it is impossible to quickly creasing different positions of the packaging cartons during use. The adjustment of the indentation position often relies on manual repositioning, which is not only inefficient but also difficult to ensure accuracy. Summary of the Invention

[0004] The object of the present invention is to address the shortcomings of the prior art and provide a creasing device for packaging carton production, so as to achieve the goal of providing a positioning mechanism, driving the rotating shell by a No. 1 motor, and cooperating with the four sets of limit columns and the annular limit groove to precisely match the ±90° angle of the indentation block. The pressure sensor can monitor the indentation pressure in real time, and the rotating assembly can achieve 0-90° stepless angle adjustment, which can handle the needs of linear indentation and oblique indentation, effectively improving the application range of the indentation device. The use of two sets of guide rods can ensure that there is no radial swing during the movement process. When the No. 2 motor is driven, the spacing between the two sets of sliding plates and the indentation block can be adjusted to meet the full range of needs from small color boxes to large transport boxes. Driven by the No. 1 electric push rod, the two sets of No. 1 guide columns can move upward and extend in the mounting plate. At this time, the spring on the outside of the No. 1 guide column is in a deformed state, which can press down and position the carton that needs to be indented, solving the problems of difficult adjustment, insufficient precision, and low efficiency existing in traditional indentation equipment. It is particularly suitable for the purpose of flexible production scenarios of small batches and multiple varieties.

[0005] A creasing device for producing packaging cartons, comprising: a creasing platform, a creasing block, a positioning mechanism, and a limiting mechanism; The positioning mechanism includes a rotating assembly, a moving assembly, and a positioning assembly. The rotating assembly is used to adjust the use position of the two sets of indentation blocks, the moving assembly is used to adjust the distance between the two sets of indentation blocks, and the positioning assembly is used to position the cartons that need indentation treatment; The rotating assembly includes a No. 1 motor and a rotating shell, and a pressure sensor is provided at the bottom end of the output end shaft of the No. 1 motor; The moving assembly includes a screw and a second motor, wherein the screw is rotatably arranged inside the rotating shell, wherein the outer side of the screw is provided with positive and negative threads, and the outer thread of the screw is penetrated by two sets of sliding plates; The positioning assembly includes a positioning plate, and two groups of No. 1 guide columns are arranged on the top of the positioning plate. Springs are arranged on the outer sides of the two groups of No. 1 guide columns.

[0006] Furthermore, a conveyor belt is provided inside the indentation table, and a reinforcement plate is provided inside the indentation table, wherein the reinforcement plate is located below the rotating shell, and the top of the reinforcement plate contacts the top inner wall of the conveyor belt, and a controller is provided on the front of the indentation table.

[0007] Furthermore, a support plate is provided on the back of the indentation table, wherein the support plate is designed to be in an "L" shape, an assembly shell is provided on the top of the support plate, and the No. 1 motor is provided on the top of the assembly shell.

[0008] Furthermore, a limiting groove is provided on the inner wall of the top of the support plate, wherein the limiting groove is in a circular ring shape, and four groups of limiting columns are provided on the top of the rotating shell, and the four groups of limiting columns are inserted into the limiting groove.

[0009] Furthermore, a connecting frame is provided inside the rotating shell, and the pressure sensor is provided on the top end of the connecting frame.

[0010] Furthermore, two groups of guide rods are provided inside the rotating shell on both sides of the screw rod, and the two groups of guide rods are movable and pass through the interiors of the two groups of sliding plates.

[0011] Furthermore, the bottom ends of the two groups of sliding plates are each provided with a No. 1 electric push rod, the bottom end of the output end rod body of the No. 1 electric push rod is provided with a mounting plate, the two groups of No. 1 guide columns are respectively movable through the interior of the mounting plate, the indentation block is provided at the bottom end of the mounting plate, and a through groove is opened through the interior of the positioning plate, wherein the through groove is located below the indentation block.

[0012] Furthermore, the limiting mechanism includes a dual-axis cylinder and a correction plate, the dual-axis cylinder is arranged on the back of the support plate, and both ends of the dual-axis cylinder output end rod body are provided with assembly plates, wherein the assembly plate is designed to be "L" shaped, and the top of the two groups of the assembly plates are provided with a No. 2 electric push rod, and the two groups of the correction plates are both arranged at the bottom end of the No. 2 electric push rod output end rod, and the interior of the two groups of the assembly plates is provided with a No. 2 guide column, wherein the No. 2 guide column is movable through the interior of the correction plate. Beneficial effects

[0013] 1. By setting up a positioning mechanism, the rotating shell can be rotated by the No. 1 motor drive, and the precise cooperation of the four sets of limit columns and the annular limit groove can realize the ±90° angle adjustment of the indentation block. The pressure sensor can monitor the indentation pressure in real time, and the rotating component can realize 0-90° stepless angle adjustment, which can handle the needs of linear indentation and oblique indentation, effectively improving the application range of the indentation device. The use of two sets of guide rods can ensure that there is no radial swing during the movement process. When driven by the No. 2 motor, the distance between the two sets of sliding plates and the indentation block can be adjusted to meet the full range of needs from small color boxes to large transport boxes. Driven by the No. 1 electric push rod, the two sets of No. 1 guide columns can be moved up and extended in the mounting plate. At this time, the spring on the outside of the No. 1 guide column is in a deformed state, which can press down and position the carton that needs to be indented, solving the problems of difficult adjustment, insufficient precision, and low efficiency of traditional indentation equipment. It is particularly suitable for flexible production scenarios of small batches and multiple varieties.

[0014] 2. By setting a limiting mechanism, two sets of "L"-shaped assembly plates are respectively connected to one end of the output rod of the dual-axis cylinder by threads. The dual-axis cylinder drive can drive the two sets of assembly plates and correction plates to move synchronously. The two sets of correction plates are used to horizontally clamp the two sides of the carton. The No. 2 electric push rod is used to drive the No. 2 guide column to push the correction plate downward to press the edge of the carton at the top of the conveyor belt. The two sets of correction plates can be used to limit the carton that needs to be indented under the rotating shell to ensure the accuracy of the carton edge alignment. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic diagram of the overall front structure of the present invention; Figure 2 It is a schematic diagram of the overall back structure of the present invention; Figure 3 Schematic diagram of the cross-sectional structure of the assembly shell of the present invention; Figure 4 This is a schematic diagram of the explosion structure of the sliding plate and the screw rod of the present invention; Figure 5 It is a structural schematic diagram of the correction plate of the present invention; Figure 6 It is a schematic diagram of the bottom structure of the support shell of the present invention.

[0016] In the figure: 1. Indentation table; 2. Conveyor belt; 3. Controller; 4. Support plate; 5. Assembly shell; 6. Motor No. 1; 7. Limiting groove; 8. Connecting frame; 9. Rotating shell; 10. Limiting column; 11. Screw; 12. Motor No. 2; 13. Guide rod; 14. Sliding plate; 15. Electric push rod No. 1; 16. Mounting plate; 17. Indentation block; 18. Guide column No. 1; 19. Spring; 20. Positioning plate; 21. Through groove; 22. Dual-axis cylinder; 23. Assembly plate; 24. Electric push rod No. 2; 25. Correction plate; 26. Guide column No. 2; 27. Pressure sensor. DETAILED DESCRIPTION

[0017] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. 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 making creative efforts are within the scope of protection of the present invention.

[0018] See also Figure 1 、 Figure 2 、 Figure 3 、 Figure 4 and Figure 6 As shown, a creasing device for producing packaging cartons; It includes: an indentation platform 1, an indentation block 17, a positioning mechanism and a limiting mechanism; The positioning mechanism includes a rotating component, a moving component and a positioning component. The rotating component is used to adjust the use position of the two sets of indentation blocks 17. The moving component is used to adjust the distance between the two sets of indentation blocks 17. The positioning component is used to position the cartons that need indentation treatment. The rotating assembly includes a No. 1 motor 6 and a rotating shell 9. The bottom end of the output shaft of the No. 1 motor 6 is provided with a pressure sensor 27; The moving assembly includes a screw rod 11 and a second motor 12. The screw rod 11 is rotatably arranged inside the rotating shell 9. The outer side of the screw rod 11 is provided with positive and negative threads. The outer threads of the screw rod 11 are penetrated by two sets of sliding plates 14. The positioning assembly includes a positioning plate 20, and two groups of No. 1 guide posts 18 are provided on the top of the positioning plate 20. The outer sides of the two groups of No. 1 guide posts 18 are both provided with springs 19; A support plate 4 is provided on the back of the indentation table 1, wherein the support plate 4 is designed to be in an "L" shape, an assembly shell 5 is provided on the top of the support plate 4, and the No. 1 motor 6 is provided on the top of the assembly shell 5. A limiting groove 7 is provided on the top inner wall of the support plate 4, wherein the limiting groove 7 is in a circular ring shape, and four groups of limiting columns 10 are provided on the top of the rotating shell 9, and the four groups of limiting columns 10 are inserted into the limiting groove 7. A connecting frame 8 is provided inside the rotating shell 9, and a pressure sensor 27 is provided on the top of the connecting frame 8. Two groups of guide rods 13 are provided on both sides of the screw rod 11 inside the rotating shell 9, and the two groups of guide rods 13 are movable and pass through the interior of the two groups of sliding plates 14.

[0019] The bottom end of the two groups of sliding plates 14 is provided with a No. 1 electric push rod 15, and the bottom end of the output end rod body of the No. 1 electric push rod 15 is provided with a mounting plate 16. The two groups of No. 1 guide columns 18 are movable through the interior of the mounting plate 16 respectively, and the indentation block 17 is provided at the bottom end of the mounting plate 16. The interior of the positioning plate 20 is penetrated by a through groove 21, wherein the through groove 21 is located below the indentation block 17.

[0020] The support plate 4 is used to provide installation support for the assembly shell 5 and the dual-axis cylinder 22. The pressure sensor 27 at the bottom of the output shaft of the No. 1 motor 6 at the top of the assembly shell 5 is connected to the top of the connecting frame 8 inside the rotating shell 9. The No. 1 motor 6 drives the rotating shell 9 to rotate. The four sets of limit columns 10 are precisely matched with the annular limit groove 7 to achieve ±90° angle adjustment of the indentation block 17. The pressure sensor 27 can monitor the indentation pressure in real time and ensure pressure stability through PID closed-loop control. The rotating assembly realizes 0-90° stepless angle adjustment, which can handle the needs of linear indentation and oblique angle indentation, effectively improving the application range of the indentation device. The two sets of sliding plates 14 are respectively connected to the positive and negative threaded connections on the outside of the screw rod 11, and the two sets of guide rods 13 inside the rotating housing 9 are respectively movable and extend through the interior of the two sets of sliding plates 14. The two sets of guide rods 13 can ensure that there is no radial swing during the movement process. When the second motor 12 is driven, the distance between the two sets of sliding plates 14 and the indentation block 17 can be adjusted to meet the needs of a full range of products from small color boxes to large transport boxes. Driven by the No. 1 electric push rod 15 at the bottom of the sliding plate 14, the mounting plate 16 and the positioning plate 20 can be pushed downward toward the carton after the limit. After the positioning plate 20 contacts the carton that needs to be indented, as the No. 1 electric push rod 15 continues to drive, the two groups of No. 1 guide columns 18 can move upward and extend in the mounting plate 16. At this time, the spring 19 on the outside of the No. 1 guide column 18 is in a deformed state, and the indentation block 17 at the bottom end of the mounting plate 16 is inserted into the through groove 21 of the positioning plate 20. The indentation block 17 can be used to perform indentation on the positioned carton.

[0021] See also Figure 1 and Figure 2 As shown, a creasing device for producing packaging cartons; A conveyor belt 2 is provided inside the indentation platform 1 , and a reinforcement plate is provided inside the indentation platform 1 , wherein the reinforcement plate is located below the rotating shell 9 , and the top of the reinforcement plate contacts the top inner wall of the conveyor belt 2 , and a controller 3 is provided on the front of the indentation platform 1 .

[0022] The indentation table 1, serving as the basic platform of the device, is integrally cast from high-strength alloy steel with a ground surface. The integrated conveyor belt 2 is a polyurethane synchronous belt equipped with a variable-frequency speed-regulating motor to achieve precise feeding of cartons. The specially designed reinforcement plate and the contact surface with the inner wall of the conveyor belt are inlaid with polymer material (PTFE), which ensures support stiffness and reduces friction coefficient. The controller 3 uses an industrial-grade PLC with an integrated touch screen and can store at least 50 sets of indentation parameter recipes.

[0023] See also Figure 1 、 Figure 2 、 Figure 3 and Figure 5 As shown, a creasing device for producing packaging cartons; The limiting mechanism includes a dual-axis cylinder 22 and a correction plate 25. The dual-axis cylinder 22 is arranged on the back of the support plate 4. Both ends of the output end rod body of the dual-axis cylinder 22 are provided with assembly plates 23, wherein the assembly plate 23 is designed to be "L" shaped. The top of the two groups of assembly plates 23 is provided with a No. 2 electric push rod 24, and the two groups of correction plates 25 are both arranged at the bottom end of the output end rod body of the No. 2 electric push rod 24. The interior of the two groups of assembly plates 23 is provided with a No. 2 guide column 26, wherein the No. 2 guide column 26 is movable through the interior of the correction plate 25.

[0024] Two groups of "L"-shaped assembly plates 23 are respectively threadedly connected to one end of the output end rod of the dual-axis cylinder 22. The dual-axis cylinder 22 can drive the two groups of assembly plates 23 and the correction plate 25 to move synchronously. It is driven by the No. 2 electric push rod 24 and cooperated with the No. 2 guide column 26 to push the correction plate 25 down to contact the top of the conveyor belt 2. The two groups of correction plates 25 can be used to limit the carton that needs to be indented below the rotating shell 9 to ensure the accuracy of the carton edge alignment.

[0025] Working principle: First, the conveyor belt 2 transports the carton to the creasing station. The dual-axis cylinder 22 pushes the correction plate 25 to clamp the two sides of the carton horizontally. The second electric push rod 24 descends to make the correction plate 25 press the edge of the carton. The positioning plate 20 adapts to the thickness of the carton under the action of the spring 19. The first motor 6 drives the rotating shell 9 to rotate to the set angle (0° straight indentation / 45° oblique indentation), and the second motor 12 drives the screw 11 to rotate, adjusting the two sets of indentation blocks 17 to the target distance. The controller 3 automatically calculates the required pressure value and sets the threshold of the pressure sensor 27; The No. 1 electric push rod 15 pushes the indentation block 17 downward, and the pressure sensor 27 feeds back the pressure value in real time. When the pressure reaches the set value, the system maintains the pressure for 0.5 to 2 seconds (adjustable) to ensure that the indentation is fixed. The No. 1 electric push rod 15 is reset, the correction mechanism is released, and the conveyor belt 2 sends out the completed carton.

[0026] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above and that the invention can be embodied in other specific forms without departing from the spirit or essential characteristics of the invention. Therefore, the embodiments should be considered in all respects as illustrative and non-restrictive, and the scope of the invention is defined by the appended claims, not the foregoing description, and all variations within the meaning and range of equivalents of the claims are intended to be included therein. Any reference sign in a claim should not be construed as limiting the claim to which it relates.

[0027] In addition, it should be understood that although this specification is described in terms of implementation methods, not every implementation method contains only one independent technical solution. This narrative method of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment can also be appropriately combined to form other implementation methods that can be understood by those skilled in the art.

Claims

1. A creasing device for producing packaging cartons, characterized in that: include: Indentation table (1), indentation block (17), positioning mechanism and limiting mechanism; The positioning mechanism comprises a rotating assembly, a moving assembly and a positioning assembly, wherein the rotating assembly is used to adjust the use position of the two groups of indentation blocks (17), the moving assembly is used to adjust the distance between the two groups of indentation blocks (17), and the positioning assembly is used to position the carton that needs indentation treatment; The rotating assembly comprises a No. 1 motor (6) and a rotating shell (9), and a pressure sensor (27) is provided at the bottom end of the output end shaft of the No. 1 motor (6); The moving assembly includes a screw rod (11) and a second motor (12), wherein the screw rod (11) is rotatably arranged inside the rotating shell (9), wherein the outer side of the screw rod (11) is provided with positive and negative threads, and the outer thread of the screw rod (11) is penetrated by two sets of sliding plates (14); The positioning assembly comprises a positioning plate (20), the top of which is provided with two groups of No. 1 guide columns (18), and the outer sides of the two groups of No. 1 guide columns (18) are both provided with springs (19).

2. The creasing device for producing packaging cartons according to claim 1, characterized in that: A conveyor belt (2) is provided inside the indentation platform (1), and a reinforcement plate is provided inside the indentation platform (1), wherein the reinforcement plate is located below the rotating shell (9), and the top end of the reinforcement plate contacts the top inner wall of the conveyor belt (2), and a controller (3) is provided on the front of the indentation platform (1).

3. The creasing device for producing packaging cartons according to claim 1, characterized in that: A support plate (4) is provided on the back of the indentation table (1), wherein the support plate (4) is designed to be in an "L" shape, an assembly shell (5) is provided at the top end of the support plate (4), and the No. 1 motor (6) is provided at the top end of the assembly shell (5).

4. The creasing device for producing packaging cartons according to claim 3, characterized in that: A limiting groove (7) is provided on the inner wall of the top of the support plate (4), wherein the limiting groove (7) is annular. Four groups of limiting columns (10) are provided on the top of the rotating shell (9), and the four groups of limiting columns (10) are inserted into the limiting groove (7).

5. The creasing device for producing packaging cartons according to claim 1, characterized in that: A connecting frame (8) is provided inside the rotating shell (9), and the pressure sensor (27) is provided at the top end of the connecting frame (8).

6. The creasing device for producing packaging cartons according to claim 1, characterized in that: Two groups of guide rods (13) are provided on both sides of the screw rod (11) inside the rotating shell (9), and the two groups of guide rods (13) are movable and pass through the interiors of the two groups of sliding plates (14).

7. The creasing device for producing packaging cartons according to claim 1, characterized in that: The bottom ends of the two groups of sliding plates (14) are both provided with a No. 1 electric push rod (15), the bottom end of the output end rod body of the No. 1 electric push rod (15) is provided with a mounting plate (16), the two groups of No. 1 guide columns (18) are respectively movable through the interior of the mounting plate (16), the indentation block (17) is provided at the bottom end of the mounting plate (16), and a through groove (21) is provided through the interior of the positioning plate (20), wherein the through groove (21) is located below the indentation block (17).

8. The creasing device for producing packaging cartons according to claim 1, characterized in that: The limiting mechanism includes a double-axis cylinder (22) and a correction plate (25), wherein the double-axis cylinder (22) is arranged on the back of the support plate (4), and both ends of the output end rod body of the double-axis cylinder (22) are provided with an assembly plate (23), wherein the assembly plate (23) is designed to be "L"-shaped, and the top ends of the two groups of the assembly plates (23) are provided with a No. 2 electric push rod (24), and the two groups of the correction plates (25) are both provided at the bottom ends of the output end rod bodies of the No. 2 electric push rod (24), and the interiors of the two groups of the assembly plates (23) are both provided with a No. 2 guide column (26), wherein the No. 2 guide column (26) movably passes through the interior of the correction plate (25).

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