A packaging box trimming device

Abstract

The utility model discloses a trimming device for a packaging box, which belongs to the field of packaging box processing, and comprises a processing table, a carrier arranged on the processing table, and a positioning component arranged on the carrier; a knife back plate is arranged above the carrier, and a blade for cutting a cardboard is arranged at the lower end of the knife back plate; a pressing plate is also arranged at the lower end of the knife back plate, the pressing plate is located at the inner side of the blade profile, and the pressing plate is elastically connected to the knife back plate; the trimming device also comprises a lifting mechanism for driving the knife back plate to move longitudinally; when the knife back plate descends, the pressing plate contacts the cardboard before the blade, and because the pressing plate and the knife back plate are elastically connected, the pressing plate elastically presses above the cardboard, and can apply a certain pressure to a plurality of stacked cardboards, ensuring that the plurality of cardboards are closely attached, so that after the blade descends and cuts into the plurality of cardboards, the cutting sizes of the plurality of cardboards are ensured to be consistent, and it is avoided that there are gaps between the cardboards to affect the cutting accuracy and cutting effect of the plurality of cardboards.

Description

Technical Field

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

[0002] The packaging box is a container used to package and protect goods. It protects the goods from damage such as collision, extrusion, moisture, etc. during transportation, storage and sales; it attracts consumers' attention and displays the characteristics and advantages of the goods through carefully designed patterns, texts and colors.

[0003] At present, the mainstream of industrial production is paper packaging boxes made of corrugated paper, which has the characteristics of low cost and environmental protection. However, in the production process of packaging boxes, it is necessary to trim the paperboard according to the size and shape of the specific packaging box so that the paperboard forms a predetermined size to facilitate processing to form a packaging box. However, in the prior art, when trimming the paperboard, the packaging box trimming device generally needs to stack multiple paperboards for cutting at one time to improve the processing efficiency. However, when stacking the paperboards, the paperboards are not neatly stacked, and there are gaps between the paperboards due to the lack of compression. These problems may cause the cutting sizes of the multiple paperboards to be inconsistent due to the above-mentioned unstable factors when the multiple paperboards are cut together by the lower cutter, thereby affecting the normal processing and production of the packaging boxes. Utility Model Content

[0004] The embodiment of the utility model provides a trimming device for a packaging box to solve the problems in the prior art.

[0005] The embodiment of the utility model adopts the following technical scheme: a trimming device for a packaging box, used for trimming the cardboard forming the packaging box, comprising a processing table, a carrier arranged on the processing table and a positioning assembly arranged on the carrier, the carrier being used to carry the cardboard, and the positioning assembly being used to position the cardboard; a knife back plate is provided above the carrier, a blade for cutting the cardboard is provided at the lower end of the knife back plate, and the blade is distributed on the knife back plate in a set contour; a pressing plate is also provided at the lower end of the knife back plate, the pressing plate is located on the inner side of the blade contour, and the pressing plate is elastically connected to the knife back plate; the trimming device also includes a lifting mechanism for driving the knife back plate to move longitudinally, and when the knife back plate descends, the pressing plate contacts the cardboard before the blade.

[0006] Preferably, at least two first guide pillars are longitudinally provided at the upper end of the pressure plate, and the first guide pillars pass through the first guide holes provided on the back plate and slideably cooperate with the first guide holes; a first baffle is provided on the top of each first guide pillar, and a first spring is sleeved on each first guide pillar, and the first spring is located between the back plate and the pressure plate.

[0007] Preferably, the outer contour of the lower end of the pressing plate is rounded.

[0008] Preferably, the lifting mechanism includes a linear hydraulic cylinder, a top plate and at least two second guide columns; the linear hydraulic cylinder is longitudinally arranged beside the processing table, the top plate is located above the knife back plate, the knife back plate and the top plate are connected by a connecting column, and the driving end of the linear hydraulic cylinder is fixedly connected to the top plate; the second guide column is longitudinally installed on the processing table, the second guide column passes through the second guide hole on the top plate and slides with the second guide hole.

[0009] Preferably, two grooves are provided on the front side of the carrier, and both grooves penetrate the carrier body upwards.

[0010] Preferably, the positioning assembly includes a left side plate installed on the left side of the upper end of the platform, and a rear side plate arranged on the rear side of the upper end of the platform; the angle between the inner side surface of the left side plate and the inner side surface of the rear side plate is ninety degrees; the left side plate and the rear side plate are both fixed on the platform by bolts.

[0011] Preferably, the positioning assembly also includes a push plate arranged in the avoidance groove on the front side of the carrier, the push plate is longitudinally arranged and the upper end of the push plate is located above the carrier; a mounting plate is installed at the front end of the avoidance groove, and two third guide pillars are fixedly connected to the push plate along the width direction of the carrier, the third guide pillars are slidably matched with third guide holes on the mounting plate, and a second baffle is installed at the outer end of the third guide pillar, and a second spring is also installed on the third guide pillar, and the second spring is located between the mounting plate and the push plate; after the cardboard is placed on the carrier, the left side and the rear side of the cardboard respectively contact with the left side plate and the rear side plate, and the push plate contacts the front side of the cardboard under the action of the second spring.

[0012] At least one of the above technical solutions adopted in the embodiment of the utility model can achieve the following beneficial effects:

[0013] Firstly, the utility model positions the cardboard through the positioning assembly, and then the lifting mechanism drives the knife back plate to descend, and the pressure plate contacts the cardboard before the blade. Since the pressure plate and the knife back plate are elastically connected, the pressure plate elastically presses on the cardboard, and can exert a certain pressure on the stacked multiple cardboards to ensure that the multiple cardboards are tightly attached. In this way, after the blade descends and cuts into the multiple cardboards, the cutting sizes of the multiple cardboards are guaranteed to be consistent, avoiding gaps between the cardboards to affect the cutting accuracy and cutting effect of the multiple cardboards.

[0014] Secondly, the utility model allows the staff to pull the push plate so that the cardboard can be smoothly placed on the carrier, and the staff pushes the cardboard by hand so that the left side and the rear side of the cardboard respectively contact the left side plate and the rear side plate, and then, the push plate contacts the front side of the cardboard under the action of the second spring, thereby completing the limitation of the cardboard in multiple directions. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The drawings described herein are used to provide a further understanding of the present invention and constitute a part of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation on the present invention. In the drawings:

[0016] Figure 1 It is a three-dimensional structural schematic diagram of the utility model;

[0017] Figure 2 It is a partial three-dimensional structural schematic diagram of the utility model;

[0018] Figure 3 It is a schematic diagram of the assembly of the knife back plate and the pressure plate of the utility model;

[0019] Figure 4 It is a three-dimensional structural cross-sectional view of the blade back plate and the pressure plate of the utility model;

[0020] Figure 5 The three-dimensional structure of the platform and positioning components of the utility model is shown in FIG. Figure 1 ;

[0021] Figure 6 The three-dimensional structure of the platform and positioning components of the utility model is shown in FIG. Figure 2 ;

[0022] Figure 7 It is a schematic diagram of the assembly of the push plate and the mounting plate of the utility model;

[0023] Reference numerals

[0024] 1-cardboard; 2-processing table; 21-carrier; 211-trough body; 212-avoidance groove; 3-positioning assembly; 31-left side plate; 311-mounting block; 312-long slot hole; 32-rear side plate; 33-bolt; 34-push plate; 341-third guide column; 342-second baffle plate; 35-mounting plate; 351-third guide hole; 36-second spring; 4-knife back plate; 41-knife edge; 42-first guide hole; 43-second guide hole; 5-pressing plate; 51-first guide column; 52-first baffle plate; 53-first spring; 6-lifting mechanism; 61-linear hydraulic cylinder; 62-top plate; 63-second guide column; 64-connecting column. DETAILED DESCRIPTION

[0025] In order to make the purpose, technical solution and advantages of the utility model clearer, the technical solution of the utility model will be clearly and completely described below in combination with the specific embodiments of the utility model and the corresponding drawings. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0026] The technical solutions provided by various embodiments of the present invention are described in detail below in conjunction with the accompanying drawings.

[0027] Reference Figures 1 to 7 As shown, the embodiment of the utility model provides a trimming device for a packaging box, which is used for trimming a paperboard 1 forming a packaging box, and comprises a processing table 2, a carrier 21 arranged on the processing table 2, and a positioning component 3 arranged on the carrier 21, wherein the carrier 21 is used for carrying the paperboard 1, and the positioning component 3 is used for positioning the paperboard 1;

[0028] A knife back plate 4 is provided above the carrier 21, and a blade 41 for cutting the cardboard 1 is provided at the lower end of the knife back plate 4. The blade 41 is distributed on the knife back plate 4 in a set contour. In this embodiment, the contour of the blade 41 is rectangular, and its function is also to perform edge trimming on the cardboard 1, so that the outer edge contour of the cardboard 1 is formed on the cardboard 1 with the same contour shape as the blade 41, and the edge trimming of the specific shape of the cardboard 1 is completed. The contour of the blade 41 can be configured to a corresponding shape according to the actual processing shape of the cardboard 1;

[0029] A pressure plate 5 is also provided at the lower end of the blade back plate 4. The pressure plate 5 is located inside the contour of the blade 41. The pressure plate 5 is elastically connected to the blade back plate 4.

[0030] The trimming device also includes a lifting mechanism 6 for driving the knife back plate 4 to move longitudinally. In the present embodiment, the lifting mechanism 6 adopts a linear hydraulic cylinder 61, a top plate 62 and two second guide pillars 63; the linear hydraulic cylinder 61 is longitudinally arranged beside the processing table 2, the top plate 62 is located above the knife back plate 4, the knife back plate 4 and the top plate 62 are connected by a connecting column 64, and the driving end of the linear hydraulic cylinder 61 is fixedly connected to the top plate 62; the second guide column 63 is longitudinally installed on the processing table 2, the second guide column 63 passes through the second guide hole 43 on the top plate 62 and slidably cooperates with the second guide hole 43, and the two second guide pillars 63 are used to guide the top plate 62 in the vertical direction, so that the top plate 62 can slide up and down, and the linear hydraulic cylinder 61 can achieve stable and precise positioning of the knife back plate 4 The linear hydraulic cylinder 61 is at the upper limit position, the pressing plate 5 is located below the blade 41, and there is a certain distance between the pressing plate 5 and the carrier 21, so that the staff can place multiple cardboards 1 on the carrier 21 in sequence and position them through the positioning component 3, and then the linear hydraulic cylinder 61 drives the top plate 62 to descend, and the knife back plate 4 follows the decline, and the pressing plate 5 contacts the cardboard 1 before the blade 41. Due to the elastic connection between the pressing plate 5 and the knife back plate 4, the pressing plate 5 elastically presses on the top of the cardboard 1, and can apply a certain pressure on the stacked multiple cardboards 1 to ensure that the multiple cardboards 1 are closely attached to each other, so that after the blade 41 descends and cuts into the multiple cardboards 1, the cutting size of the multiple cardboards 1 is guaranteed to be consistent, and the gaps between the cardboards 1 are avoided to affect the cutting accuracy of the multiple cardboards 1.

[0031] Specifically, at least two first guide posts 51 are longitudinally provided at the upper end of the pressing plate 5, and the first guide posts 51 pass through the first guide holes 42 provided on the knife back plate 4 and slide with the first guide holes 42; a first baffle plate 52 is provided on the top of each first guide post 51, and a first spring 53 is sleeved on each first guide post 51, and the first spring 53 is located between the knife back plate 4 and the pressing plate 5, and the pressing plate 5 and the knife back plate 4 are longitudinally slidably connected through the two first guide posts 51, and the first baffle plate 52 can prevent the first guide post 51 from sliding out of the first guide holes 42, and the first spring 53 is cooperated to realize the spring connection between the knife back plate 4 and the pressing plate 5, so that when the blade 41 cuts the cardboard 1, the pressing plate 5 can effectively press the multiple cardboards 1 to ensure the cutting effect of the cardboard 1;

[0032] The outer contour of the lower end of the pressing plate 5 is rounded to prevent the edges of the pressing plate 5 from causing indentations or damage to the paperboard 1 .

[0033] Specifically, two slots 211 are provided on the front side of the carrier 21 , and both slots 211 penetrate upwardly through the body of the carrier 21 , so that it is convenient for the staff to reach into the slots 211 to take and place the cardboard 1 on the carrier.

[0034] Specifically, the positioning assembly 3 includes a left side plate 31 installed on the left side of the upper end of the carrier 21, and a rear side plate 32 provided on the rear side of the upper end of the carrier 21; the inner side surface of the left side plate 31 and the inner side surface of the rear side plate are at an angle of ninety degrees; the left side plate 31 and the rear side plate are fixedly installed on the carrier 21 by bolts 33, and the left side plate 31 and the rear side plate 32 are both provided with a laterally extending mounting block 311, and the position of the left side plate 31 or the rear side plate can be adjusted by providing a long slot hole 312 on the mounting block 311 and placing the bolt 33 in the long slot hole 312, so as to be suitable for positioning cardboards 1 of various sizes;

[0035] The positioning assembly 3 also includes a push plate 34 arranged in the avoidance groove 212 on the front side of the carrier 21, the push plate 34 is arranged longitudinally and the upper end of the push plate 34 is located above the carrier 21; the front end of the avoidance groove 212 is installed with a mounting plate 35, and two third guide pillars 341 are fixedly connected to the push plate 34 along the width direction of the carrier 21, and the third guide pillars 341 are slidably matched with the third guide holes 351 on the mounting plate 35, and the outer end of the third guide pillar 341 is installed with a second baffle 342, and the third guide pillar 341 is also installed with a second spring 36, and the second spring 36 is located between the mounting plate 35 and the push plate 34;

[0036] In this embodiment, the staff pulls the push plate 34 so that the cardboard 1 can be smoothly placed on the carrier 21. The staff pushes the cardboard 1 by hand so that the left side and the rear side of the cardboard 1 respectively contact the left side plate 31 and the rear side plate. Then, the push plate 34 contacts the front side of the cardboard 1 under the action of the second spring 36, thereby completing the limitation of the cardboard 1 in multiple directions. Through the elastically arranged push plate 34, the corresponding knife back plate 4, that is, the blade 41, can be replaced according to actual conditions, so that cardboards 1 of various sizes can be installed and positioned.

[0037] The above description is only an embodiment of the present invention and is not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent substitution, improvement, etc. made within the spirit and principle of the present invention shall be included in the scope of the claims of the present invention.

Claims

1. A packaging box trimming device, used for trimming the paperboard (1) forming the packaging box, characterized in that: It comprises a processing platform (2), a carrier (21) arranged on the processing platform (2), and a positioning component (3) arranged on the carrier (21), wherein the carrier (21) is used to carry a paperboard (1), and the positioning component (3) is used to position the paperboard (1); A knife back plate (4) is provided above the carrier (21), a blade (41) for cutting the paperboard (1) is provided at the lower end of the knife back plate (4), and the blade (41) is distributed on the knife back plate (4) in a set contour; A pressure plate (5) is also provided at the lower end of the blade back plate (4), the pressure plate (5) is located inside the contour of the blade (41), and the pressure plate (5) is elastically connected to the blade back plate (4); The trimming device also includes a lifting mechanism (6) for driving the knife back plate (4) to move longitudinally. When the knife back plate (4) descends, the pressing plate (5) contacts the paperboard (1) before the blade (41).

2. A packaging box trimming device according to claim 1, characterized in that: At least two first guide posts (51) are longitudinally provided at the upper end of the pressing plate (5), and the first guide posts (51) pass through a first guide hole (42) provided on the blade back plate (4) and are slidably matched with the first guide hole (42); A first baffle (52) is provided on the top of each first guide column (51), and a first spring (53) is sleeved on each first guide column (51), wherein the first spring (53) is located between the blade back plate (4) and the pressure plate (5).

3. The edge trimming device for a packaging box according to claim 2, characterized in that: The outer contour of the lower end of the pressing plate (5) is arranged to be rounded.

4. The edge trimming device for a packaging box according to claim 1, characterized in that: The lifting mechanism (6) comprises a linear hydraulic cylinder (61), a top plate (62) and at least two second guide pillars (63); The linear hydraulic cylinder (61) is longitudinally arranged beside the processing table (2), the top plate (62) is located above the knife back plate (4), the knife back plate (4) and the top plate (62) are connected by a connecting column (64), and the driving end of the linear hydraulic cylinder (61) is fixedly connected to the top plate (62); The second guide column (63) is longitudinally mounted on the processing table (2); the second guide column (63) passes through the second guide hole (43) on the top plate (62) and is slidably matched with the second guide hole (43).

5. The edge trimming device for a packaging box according to claim 1, characterized in that: Two grooves (211) are provided on the front side of the carrier (21), and both grooves (211) penetrate the carrier (21) body upwards.

6. The edge trimming device for a packaging box according to claim 1, characterized in that: The positioning assembly (3) comprises a left side plate (31) mounted on the left side of the upper end of the carrier (21), and a rear side plate (32) arranged on the rear side of the upper end of the carrier (21); The included angle between the inner side surface of the left side plate (31) and the inner side surface of the rear side plate (32) is ninety degrees; The left side plate (31) and the rear side plate (32) are both fixedly mounted on the carrier (21).

7. The edge trimming device for a packaging box according to claim 6, characterized in that: The positioning assembly (3) further comprises a push plate (34) arranged in an avoidance groove on the front side of the carrier (21), the push plate (34) being arranged longitudinally and an upper end portion of the push plate (34) being located above the carrier (21); A mounting plate (35) is installed at the front end of the avoidance groove, and two third guide pillars (341) are fixedly connected to the push plate (34) along the width direction of the carrier (21), and the third guide pillars (341) are slidably matched with third guide holes (351) on the mounting plate (35), and a second baffle (342) is installed at the outer end of the third guide pillar (341), and a second spring (36) is also installed on the third guide pillar (341), and the second spring (36) is located between the mounting plate (35) and the push plate (34); After the paperboard (1) is placed on the carrier (21), the left side and the rear side of the paperboard (1) respectively contact the left side plate (31) and the rear side plate, and the push plate (34) contacts the front side of the paperboard (1) under the action of the second spring (36).

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