Edge cutting device for packaging box

Abstract

The utility model provides an edge cutting device for a packaging box, which relates to the technical field of packaging box production and comprises a cutting table body, a rotating pipe is mounted on the upper surface of the cutting table body through a bearing, the upper end of the rotating pipe is fixedly communicated with a fixed table, and air holes distributed in a linear array are formed in the upper surface of the fixed table. An annular sliding groove is formed in the upper surface of the cutting table body, arc-shaped supporting sliding blocks distributed in an annular array are slidably connected to the inner wall of the annular sliding groove, and the upper surfaces of the multiple arc-shaped supporting sliding blocks are fixedly connected with the lower surface of the fixing table. According to the packaging box edge cutting device, the situation that an elastic piece extrudes a packaging box and deforms and sinks is avoided, so that the cutting quality is improved, the fixed packaging box is automatically driven to rotate, the other two sides of the packaging box are conveniently subjected to edge cutting operation, and then the edge cutting efficiency of the packaging box is greatly improved.

Description

Technical Field

[0001] The utility model relates to the technical field of packaging box production, in particular to a packaging box edge trimming device. Background Art

[0002] As the name suggests, packaging boxes are boxes used to package products. They can be classified by material, such as: paper boxes, iron boxes, wooden boxes, cloth boxes, leather boxes, acrylic boxes, corrugated packaging boxes and PVC boxes, etc. They can also be classified by the name of the product, such as: moon cake boxes, tea boxes, wolfberry boxes, candy boxes, exquisite gift boxes, local specialty boxes, wine boxes, chocolate boxes, food, medicine and health products boxes, food packaging boxes, tea packaging boxes and pencil cases, etc. The functions of packaging boxes: ensure the safety of products during transportation, improve the grade of products, etc. Packaging boxes are widely used. In the processing of packaging boxes, the packaging boxes need to be trimmed. The packaging boxes have four sides. The existing trimming devices are mostly a simple cutter. When cutting the packaging box, four cutting operations need to be performed on the four sides of the packaging box in sequence, which will result in low cutting efficiency.

[0003] For example, a Chinese patent document discloses a trimming device for the production and processing of packaging boxes (Announcement No.: CN221022546U). Although this patent adjusts the position of the cutter according to the size of the packaging box and the cutting requirements, when cutting the packaging box, the four sides of the packaging box only need to be cut twice. Compared with the existing trimming device that needs to perform four cutting operations on the four sides of the packaging box in sequence, this device can significantly improve the cutting efficiency.

[0004] However, when trimming the edges of the packaging box, the packaging box is fixed by means of an elastic member and a positioning pressure plate. In actual operation, as the cutter continues to move downward for cutting, the squeezing force of the elastic member will become greater and greater, which can easily cause the positioning pressure plate to deform and dent the packaging box under the strong squeezing of the packaging box, greatly reducing the cutting quality. After cutting both sides of the packaging box, the packaging box needs to be manually rotated and placed before cutting the other two sides. The whole process is relatively cumbersome, which greatly reduces the cutting efficiency.

[0005] Therefore, we propose a cutting device for a packaging box. Utility Model Content

[0006] The purpose of the present utility model is to solve the shortcomings existing in the prior art. At present, when trimming the edges of the packaging box, the packaging box is fixed by means of an elastic member and a positioning pressure plate. However, in actual operation, as the cutter continues to move downward for cutting, the squeezing force of the elastic member will become greater and greater, which can easily cause the positioning pressure plate to deform and dent the packaging box under the strong squeezing of the packaging box, greatly reducing the cutting quality. After cutting both sides of the packaging box, the packaging box needs to be manually rotated and placed before cutting the other two sides. The whole process is relatively cumbersome, which greatly reduces the cutting efficiency.

[0007] In order to achieve the above purpose, the present invention adopts the following technical solutions:

[0008] A packaging box trimming device comprises a cutting table body, a rotating tube is mounted on the upper surface of the cutting table body via a bearing, the upper end of the rotating tube is fixedly connected to a fixed table, the upper surface of the fixed table is provided with air holes distributed in a linear array, the upper surface of the cutting table body is provided with an annular slide groove, the inner wall of the annular slide groove is slidably connected to arc-shaped support sliders distributed in an annular array, the upper surfaces of multiple arc-shaped support sliders are fixedly connected to the lower surface of the fixed table, and the other end of the rotating tube passes through and extends into the interior of the cutting table body;

[0009] The outer surface of the rotating tube is provided with a fixed rotating device, and the fixed rotating device includes a worm gear, and the inner wall of the worm gear is fixedly sleeved with the outer surface of the rotating tube.

[0010] Preferably, an air pump is fixedly installed on the inner bottom wall of the cutting table body, one end of the air pump is fixedly connected to an air extraction pipe, the outer surface of one end of the air extraction pipe is installed with the inner wall of the other end of the rotating tube through a sealed bearing, and a first servo motor is fixedly installed on the rear inner wall of the cutting table body.

[0011] Preferably, a worm is fixedly mounted on the output shaft of the first servo motor via a coupling, the outer surface of the worm is engaged with the tooth surface of the worm wheel, and symmetrically distributed hydraulic cylinders are fixedly mounted on the upper surface of the cutting table body.

[0012] Preferably, one end of the two hydraulic cylinder piston rods is fixedly connected to a lifting platform, the upper surface of the lifting platform is fixedly connected to a center scale, and the upper surface of the lifting platform is provided with an indicating movement groove.

[0013] Preferably, a travel groove is provided on the lower surface of the lifting platform, and a second servo motor is fixedly installed on one side surface of the lifting platform. The output shaft of the second servo motor is fixedly installed with a bidirectional screw rod through a coupling, and one end of the bidirectional screw rod passes through and extends to the interior of the lifting platform.

[0014] Preferably, the outer surface of one end of the bidirectional screw is installed on the inner wall of one side of the lifting platform through a bearing, the outer surface of the bidirectional screw is threadedly connected to symmetrically distributed thread blocks, and the upper surface of the thread block is fixedly connected to an indicator block.

[0015] Preferably, one end of the indicator block observes the indicating moving groove and extends to the upper surface of the lifting platform, the lower surface of the threaded block is fixedly connected with a travel block, one end of the travel block passes through the travel groove and extends to the lower surface of the lifting platform, and the lower surface of the travel block is fixedly connected with a cutting knife.

[0016] Compared with the prior art, the beneficial effects of the present invention are:

[0017] In the utility model, the packaging box is fixed by the negative pressure generated by the gas, which avoids the elastic part from squeezing the packaging box to cause deformation and depression, thereby improving the cutting quality. The fixed packaging box is automatically driven to rotate, which facilitates the trimming operation on the other two sides of the packaging box, thereby greatly improving the efficiency of the packaging box trimming. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a schematic diagram of the main structure of a packaging box trimming device provided by the utility model;

[0019] Figure 2 A three-dimensional diagram of the fixed platform structure of a packaging box trimming device provided by the utility model;

[0020] Figure 3 A three-dimensional diagram of the cutting table structure of a packaging box trimming device provided by the present invention;

[0021] Figure 4 This is a three-dimensional diagram of the lifting platform structure of a packaging box trimming device provided by the utility model.

[0022] Legend: 1. Cutting table body; 2. Rotating tube; 3. Fixed table; 4. Air hole; 5. Annular slide; 6. Arc-shaped support slider; 7. Worm gear; 71. Vacuum pump; 72. Vacuum pipe; 73. First servo motor; 74. Worm; 75. Hydraulic cylinder; 76. Lifting platform; 77. Center scale; 78. Indicating moving groove; 79. Travel groove; 710. Second servo motor; 711. Bidirectional screw; 712. Thread block; 713. Indicating block; 714. Travel block; 715. Cutting knife. DETAILED DESCRIPTION

[0023] The following will combine 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, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0024] To facilitate understanding of the present invention, the present invention will be described more comprehensively below with reference to relevant references, and several embodiments of the present invention are given. However, the present invention can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of the present invention more thorough and comprehensive.

[0025] It should be noted that when an element is referred to as being "fixed on" another element, it may be directly on the other element or there may be a central element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. The terms "vertical", "horizontal", "left", "right" and similar expressions used in this article are for illustrative purposes only.

[0026] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those skilled in the art to which this invention pertains. The terms used herein in the specification of this invention are for the purpose of describing specific embodiments only and are not intended to limit this invention. The term "and / or" used herein includes any and all combinations of one or more of the related listed items.

[0027] Example 1

[0028] like Figure 1-4 As shown, the utility model provides a technical solution: a packaging box trimming device, comprising a cutting table body 1, a rotating tube 2 is installed on the upper surface of the cutting table body 1 through a bearing, the upper end of the rotating tube 2 is fixedly connected to the fixed table 3, the upper surface of the fixed table 3 is provided with air holes 4 distributed in a linear array, and the multiple air holes 4 are evenly distributed in a linear array, so that they are in full contact with the packaging box, thereby improving the fixing effect of the packaging box, the upper surface of the cutting table body 1 is provided with an annular slide groove 5, the inner wall of the annular slide groove 5 is slidably connected with an arc-shaped supporting slider 6 distributed in an annular array, the upper surfaces of the multiple arc-shaped supporting sliders 6 are all fixedly connected to the lower surface of the fixed table 3, the arc-shaped supporting slider 6 can not only improve the stability of the fixed table 3 during rotation, but also has the function of supporting the fixed table 3 to prevent the cutting pressure from causing it to tilt, the other end of the rotating tube 2 passes through and extends to the interior of the cutting table body 1;

[0029] The outer surface of the rotating tube 2 is provided with a fixed rotating device, and the fixed rotating device includes a worm gear 7 , and the inner wall of the worm gear 7 is fixedly sleeved with the outer surface of the rotating tube 2 .

[0030] Example 2

[0031] like Figure 1-4 As shown, the utility model provides a technical solution: an air pump 71 is fixedly installed on the inner bottom wall of the cutting table body 1, one end of the air pump 71 is fixedly connected to an air extraction pipe 72, the outer surface of one end of the air extraction pipe 72 is installed with the inner wall of the other end of the rotating tube 2 through a sealed bearing, and a first servo motor 73 is fixedly installed on the rear inner wall of the cutting table body 1. The air pump 71 needs to be an air pump that can extract air in both directions.

[0032] The output shaft of the first servo motor 73 is fixedly mounted with a worm 74 via a coupling. The outer surface of the worm 74 meshes with the tooth surface of the worm wheel 7. The upper surface of the cutting table body 1 is fixedly mounted with symmetrically distributed hydraulic cylinders 75. The self-locking characteristics of the worm 74 and the worm wheel 7 improve stability after stopping rotation.

[0033] One end of the piston rod of the two hydraulic cylinders 75 is fixedly connected to a lifting platform 76, and the upper surface of the lifting platform 76 is fixedly connected to a center scale 77. The upper surface of the lifting platform 76 is provided with an indicating moving groove 78. The center scale 77 is marked with scales on both sides with the center as the boundary, and the displayed scale value is twice the normal distance.

[0034] A travel groove 79 is provided on the lower surface of the lifting platform 76, and a second servo motor 710 is fixedly installed on one side surface of the lifting platform 76. The output shaft of the second servo motor 710 is fixedly installed with a bidirectional screw rod 711 through a coupling. One end of the bidirectional screw rod 711 passes through and extends to the interior of the lifting platform 76. The second servo motor 710 drives the bidirectional screw rod 711 to rotate clockwise and counterclockwise.

[0035] The outer surface of one end of the bidirectional screw rod 711 is installed on the inner wall of one side of the lifting platform 76 through a bearing. The outer surface of the bidirectional screw rod 711 is threadedly connected with symmetrically distributed thread blocks 712. The upper surface of the thread block 712 is fixedly connected with an indicator block 713. A pointer is provided above the indicator block 713, so that the operator can accurately see the effect of the moving distance.

[0036] One end of the indicator block 713 observes the indicator moving groove 78 and extends to the upper surface of the lifting platform 76. The lower surface of the threaded block 712 is fixedly connected to the travel block 714. One end of the travel block 714 passes through the travel groove 79 and extends to the lower surface of the lifting platform 76. The lower surface of the travel block 714 is fixedly connected to the cutting knife 715. The travel groove 79 serves to guide and limit the movement of the travel block 714.

[0037] By fixing the rotating device, the packaging box is fixed by the negative pressure generated by the gas, avoiding the elastic part from squeezing the packaging box to cause deformation and depression, thereby improving the cutting quality. The fixed packaging box is rotated by automation, which facilitates the trimming operation on the other two sides of the packaging box, thereby greatly improving the efficiency of packaging box trimming.

[0038] The working process of this utility model:

[0039] Step 1: Place the package to be cut at the center above the fixing table 3 and start the vacuum pump 71. The vacuum pipe 72 of the vacuum pump 71 cooperates with the rotating tube 2 to generate negative pressure inside the fixing table 3. The negative pressure is applied to the package through the air holes 4 above the fixing table 3. The air holes 4 are evenly distributed in a linear array, thereby improving the fixing effect of the package.

[0040] Step 2: Start the second servo motor 710 to drive the bidirectional screw rod 711 to rotate clockwise. The rotation of the bidirectional screw rod 711 drives the indicator block 713 and the stroke block 714 to move synchronously through the threaded block 712. The movement of the indicator block 713 can enable the operator to quickly adjust to the cutting size of the packaging box through the pointer above it and the center scale 77. It is worth noting that the center scale 77 is marked with scales on both sides with the center as the boundary, and the displayed scale value is twice the normal distance, so that the operator can directly visually estimate the distance between the two cutting knives 715 by observing any single pointer, which helps to improve the adjustment efficiency. After the adjustment is completed, the piston rod of the hydraulic cylinder 75 is started to retract. The retraction movement of the piston rod of the hydraulic cylinder 75 drives the lifting platform 76 to move downward, thereby driving the cutting knife 715 to cut both sides of the packaging box;

[0041] Step three, after the cutting on both sides is completed, the piston rod of the hydraulic cylinder 75 is started to extend, thereby driving the cutting knife 715 to rise and reset through the lifting platform 76, and then the first servo motor 73 is started. The first servo motor 73 drives the meshing worm gear 7 to rotate through the worm 74. The rotation of the worm gear 7 drives the packaging box on the fixed platform 3 to rotate ninety degrees through the rotating tube 2. At this time, the other two sides of the packaging box are cut. Before cutting the other two sides, the bidirectional screw rod 711 is driven to rotate by the second servo motor 710 to adjust the cutting distance, and then the hydraulic cylinder 75 is started to retract for cutting. When all cutting is completed, the vacuum pump 71 is started to reversely pump air, so that the gas inside the fixed platform 3 is converted to positive pressure, and then the cut packaging box can be removed.

[0042] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A packaging box trimming device, comprising a cutting table body (1), characterized in that: The upper surface of the cutting table body (1) is provided with a rotating tube (2) via a bearing, the upper end of the rotating tube (2) is fixedly connected to a fixed table (3), the upper surface of the fixed table (3) is provided with air holes (4) distributed in a linear array, the upper surface of the cutting table body (1) is provided with an annular slide groove (5), the inner wall of the annular slide groove (5) is slidably connected with arc-shaped supporting sliders (6) distributed in an annular array, the upper surfaces of the plurality of arc-shaped supporting sliders (6) are all fixedly connected to the lower surface of the fixed table (3), and the other end of the rotating tube (2) passes through and extends to the interior of the cutting table body (1); The outer surface of the rotating tube (2) is provided with a fixed rotating device, and the fixed rotating device includes a worm wheel (7), and the inner wall of the worm wheel (7) is fixedly sleeved with the outer surface of the rotating tube (2).

2. The edge trimming device for a packaging box according to claim 1, characterized in that: An air pump (71) is fixedly mounted on the inner bottom wall of the cutting table body (1); one end of the air pump (71) is fixedly connected to an air extraction pipe (72); the outer surface of one end of the air extraction pipe (72) is mounted on the inner wall of the other end of the rotating tube (2) via a sealing bearing; and a first servo motor (73) is fixedly mounted on the rear inner wall of the cutting table body (1).

3. The edge trimming device for a packaging box according to claim 2, characterized in that: A worm (74) is fixedly mounted on the output shaft of the first servo motor (73) via a coupling, the outer surface of the worm (74) meshing with the tooth surface of the worm wheel (7), and symmetrically distributed hydraulic cylinders (75) are fixedly mounted on the upper surface of the cutting table body (1).

4. The edge trimming device for a packaging box according to claim 3, characterized in that: One end of the piston rod of the two hydraulic cylinders (75) is fixedly connected to a lifting platform (76), the upper surface of the lifting platform (76) is fixedly connected to a center scale (77), and the upper surface of the lifting platform (76) is provided with an indicating movement groove (78).

5. The edge trimming device for a packaging box according to claim 4, characterized in that: A travel groove (79) is provided on the lower surface of the lifting platform (76), and a second servo motor (710) is fixedly installed on one side surface of the lifting platform (76). The output shaft of the second servo motor (710) is fixedly installed with a bidirectional screw rod (711) through a coupling, and one end of the bidirectional screw rod (711) passes through and extends into the interior of the lifting platform (76).

6. The edge trimming device for a packaging box according to claim 5, characterized in that: The outer surface of one end of the bidirectional screw rod (711) is mounted on the inner wall of one side of the lifting platform (76) through a bearing, and the outer surface of the bidirectional screw rod (711) is threadedly connected to symmetrically distributed thread blocks (712), and the upper surface of the thread block (712) is fixedly connected to an indicator block (713).

7. The edge trimming device for a packaging box according to claim 6, characterized in that: One end of the indicating block (713) observes the indicating moving groove (78) and extends to the upper surface of the lifting platform (76); the lower surface of the threaded block (712) is fixedly connected to a travel block (714); one end of the travel block (714) passes through the travel groove (79) and extends to the lower surface of the lifting platform (76); the lower surface of the travel block (714) is fixedly connected to a cutting knife (715).

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