Edge cutting device for enhancing sealing performance of liquid packaging box

Abstract

The utility model discloses an edge cutting device for enhancing the sealing performance of a liquid packaging box, and mainly relates to the technical field of edge cutting devices. Comprising grooves which are formed in a bottom frame and make sliding contact with packaging boxes, sliding plates are arranged in the grooves, the ends of the sliding plates are provided with first inclined faces making contact with the packaging boxes, the distance between the two sliding plates is equal to the width of the two packaging boxes, a plurality of fixing blocks are symmetrically arranged on the bottom frame, and pressing rollers making contact with the packaging boxes are rotationally connected to the fixing blocks. A supporting rod is arranged on the bottom frame, and a trimming cutting edge and a longitudinal cutting edge which make contact with the packaging box are arranged in the middle of the supporting rod. The packaging box has the advantages that the problem that the width of the edge cutting groove at the sealing position of the packaging box cannot be effectively controlled is solved, the forming effect of the packaging box is improved, the stability of the quality of the packaging box is guaranteed, and therefore the yield of the packaging box is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of edge trimming devices, in particular to an edge trimming device for enhancing the sealing performance of liquid packaging boxes. Background Art

[0002] During the production of packaging boxes, the inner layer material of the packaging container is generally a composite material such as plastic, aluminum foil, or seven-layer paper with good barrier properties to ensure the sealing performance of food-grade packaging boxes and prevent leakage. However, at the overlapping sealing part, the paper at the edge of the inner layer sealing part of the packaging box will be exposed inside the packaging box, and the food contained in the packaging box will leak from the exposed inner layer edge section of the paper into the composite layer, damaging the inner layer material and its structure of the packaging box; at the same time, the components in the packaging composite layer will also diffuse from the exposed inner layer edge section into the packaged food, affecting the quality and shelf life of the food.

[0003] To solve this problem, generally, the method of single-sheet mechanical edge trimming and folding is adopted. Therefore, a cutting groove needs to be cut on one side of the packaging box to facilitate folding the inner layer material with good barrier properties to the edge of the inner layer sealing part of the packaging container. However, the existing edge trimming devices cannot effectively control the width of the cutting groove, which to a certain extent affects the forming effect of the packaging box, resulting in poor quality stability of the packaging box and reducing the finished product rate of the packaging box. Content of the Utility Model

[0004] The purpose of the utility model is to provide an edge trimming device for enhancing the sealing performance of liquid packaging boxes, solve the problem that the width of the cutting groove at the edge of the sealing part of the packaging box cannot be effectively controlled, improve the forming effect of the packaging box, ensure the quality stability of the packaging box, and thus improve the finished product rate of the packaging box.

[0005] The utility model achieves the above purpose through the following technical solutions:

[0006] An edge trimming device for enhancing the sealing performance of liquid packaging boxes includes a feeding belt arranged on a chassis and used in cooperation with the packaging box. The chassis is symmetrically provided with grooves that are in sliding contact with the packaging box. A sliding plate is arranged in the groove. The end of the sliding plate is provided with a first inclined surface that contacts the packaging box. The distance between the two sliding plates is equal to the width of the two packaging boxes. The chassis is symmetrically provided with a plurality of fixing blocks. A pressure roller that contacts the packaging box is rotatably connected to the fixing block. A support rod is arranged on the chassis. A trimming cutting edge and a longitudinal cutting edge that contact the packaging box are arranged in the middle of the support rod.

[0007] Furthermore, the end of the sliding plate is provided with a first guide post that is slidably connected to the chassis. A first spring is sleeved outside the first guide post. The first spring is arranged between the chassis and the sliding plate.

[0008] Further, an adjusting block is threadedly connected to the chassis. The first spring is disposed between the adjusting block and the sliding plate. The first guide post is slidably disposed on the adjusting block, and a convex block contacting the adjusting block is provided at an end of the first guide post.

[0009] Further, a second guide post slidably connected to the chassis is provided at an end of the fixing block. A second spring is disposed outside the second guide post, and the second spring is disposed between the fixing block and the chassis.

[0010] Further, the support rod is disposed between two of the fixing blocks.

[0011] Further, a limiting plate contacting the packaging box is provided in the groove, and a second inclined surface contacting the packaging box is provided at an end of the limiting plate.

[0012] Further, the longitudinal cutting edge is circular. A rotating shaft rotatably connected to the support rod is provided on the longitudinal cutting edge. A driven gear is provided at an end of the rotating shaft. An electric motor is further provided on the support rod, and a driving gear meshing with the driven gear is provided at a movable end of the electric motor.

[0013] Further, the feeding belt includes a chassis and a plurality of roller shafts rotatably disposed on the chassis, and the plurality of roller shafts are sequentially in contact with the packaging box.

[0014] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0015] 1. Place two packaging boxes with a width spacing as a whole on the feeding belt. By driving the feeding belt to move cyclically on the chassis, the packaging box is driven to move on the chassis, realizing the feeding of the packaging box. At the same time, the grooves provided on both sides of the chassis are in sliding contact with the packaging box to limit both ends of the packaging box, avoiding the two ends of the packaging box from warping and disengaging from the track, which affects the subsequent positioning of the packaging box, thereby improving the stability of the quality of the packaging box and further improving the yield rate of the packaging box;

[0016] 2. When the packaging box slides to the end of the sliding plate, the packaging box is driven to move closer to the middle by contacting the first inclined surfaces provided at the ends of the two sliding plates. Since the distance between the two sliding plates is equal to the width of the two packaging boxes, and the sliding plates are symmetrically disposed on both sides of the base, the packaging box finally lies in the middle position of the chassis. At the same time, the pressing rollers symmetrically disposed on both sides of the chassis are in contact with both sides of the packaging box respectively to flatten the slight warping on both sides of the packaging box, so that the packaging box lies flat at the center of the base, further restricting the position of the packaging box on the chassis;

[0017] 3. By means of the edge-cutting blade located in the middle of the support rod, a distance of the width of two cutting grooves is cut in the middle of the packaging box. Subsequently, the whole of the two spaced packaging boxes is divided by the longitudinal cutting blade, splitting the packaging box into two, obtaining two packaging boxes with independent and complete cutting grooves, changing the previous edge-cutting only for the edge of a packaging box to be edge-cut, thereby effectively controlling the width of the cutting groove, improving the forming effect of the packaging box, ensuring the stability of the quality of the packaging box, and further increasing the yield rate of the packaging box. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] FIG. Figure 1 is a schematic structural view of the feeding belt of the present utility model.

[0019] FIG. Figure 2 is a partial enlarged view of part A in the present utility model. Figure 1 in the present utility model.

[0020] FIG. Figure 3 is a schematic structural view of the cooperation between the sliding plate and the pressure roller of the present utility model.

[0021] FIG. Figure 4 is a schematic structural view of the cooperation between the edge-cutting blade and the longitudinal cutting blade of the present utility model.

[0022] FIG. Figure 5 is a schematic structural view of the cooperation between the first inclined surface and the second inclined surface of the present utility model.

[0023] Reference numerals shown in the drawings:

[0024] 1. Chassis; 2. Packaging box; 3. Feeding belt; 4. Groove; 5. Sliding plate; 6. First inclined surface; 7. Fixed block; 8. Pressure roller; 9. Support rod; 10. Edge-cutting blade; 11. Longitudinal cutting blade;

[0025] 12. First guide post; 13. First spring; 14. Adjusting block; 15. Convex block; 16. Second guide post; 17. Second spring; 18. Limiting plate; 19. Second inclined surface; 20. Rotating shaft; 21. Driven gear; 22. Motor; 23. Driving gear; 24. Cutting groove. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0026] The following further elaborates the present utility model in conjunction with specific embodiments. It should be understood that these embodiments are only used to illustrate the present utility model and not to limit the scope of the present utility model. In addition, it should be understood that after reading the content taught by the present utility model, those skilled in the art can make various changes or modifications to the present utility model, and these equivalent forms also fall within the scope defined by this application.

[0027] The present utility model provides an edge-cutting device for enhancing the sealing performance of a liquid packaging box, as Figures 1 - 5As shown in the figure, it includes a feeding belt 3 arranged on the chassis 1 and used in cooperation with the packaging box 2. The feeding belt 3 drives the packaging box 2 to move on the chassis 1 to realize the loading of the packaging box 2. It is characterized in that: symmetric grooves 4 in sliding contact with the packaging box 2 are provided on the chassis 1 to limit the two ends of the packaging box 2, preventing the two ends of the packaging box 2 from warping and detaching from the track, which affects the subsequent positioning of the packaging box 2, thereby improving the stability of the quality of the packaging box 2 and further increasing the yield rate of the packaging box 2; a sliding plate 5 is arranged in the groove 4, and a first inclined surface 6 in contact with the packaging box 2 is provided at the end of the sliding plate 5. The distance between the two sliding plates 5 is equal to the width of the two packaging boxes 2. When the packaging box 2 slides to the end of the sliding plate 5, the packaging box 2 is driven to move closer to the middle by contacting the first inclined surfaces 6 provided at the ends of the two sliding plates 5. Since the distance between the two sliding plates 5 is equal to the width of the two packaging boxes 2 and the sliding plates 5 are symmetrically arranged on both sides of the base, the packaging box 2 is finally located in the middle of the chassis 1, thereby realizing the positioning of the packaging box 2, controlling the width of the cutting groove 24, improving the forming effect of the packaging box 2, ensuring the stability of the quality of the packaging box 2, and thus increasing the yield rate of the packaging box 2; a number of fixing blocks 7 are symmetrically arranged on the chassis 1, and a pressure roller 8 in contact with the packaging box 2 is rotatably connected to the fixing block 7. A support rod 9 is arranged on the chassis 1, and a trimming cutting edge 10 and a longitudinal cutting edge 11 in contact with the packaging box 2 are provided in the middle of the support rod 9. By the pressure rollers 8 symmetrically arranged on both sides of the chassis 1 contacting the two sides of the packaging box 2 respectively, the slight warping on the two sides of the packaging box 2 is flattened, so that the packaging box 2 is flatly located at the center of the base. Further, the position of the packaging box 2 is limited on the chassis 1. Cooperating with the trimming cutting edge 10 in the middle of the support rod 9, a distance equal to the width of the two cutting grooves 24 is cut out in the middle of the packaging box 2. Subsequently, the two spaced packaging boxes 2 are integrally divided by the longitudinal cutting edge 11, dividing the packaging box 2 into two, thereby effectively controlling the width of the cutting groove 24, improving the forming effect of the packaging box 2, ensuring the stability of the quality of the packaging box 2, and further increasing the yield rate of the packaging box 2.

[0028] Preferably, as Figure 3As shown, a first guide post 12 slidably connected to the chassis 1 is provided at the end of the skateboard 5. A first spring 13 is sleeved outside the first guide post 12. The first spring 13 is arranged between the chassis 1 and the skateboard 5. In the initial state, the distance between the two skateboards 5 is slightly smaller than the distance between the two packaging boxes 2. When the packaging box 2 contacts the first inclined surfaces 6 provided at both ends of the skateboard 5, the acting force after contact first determines that the packaging box 2 moves to the middle of the chassis 1. Then, the acting force applied to the packaging box 2 by the roller drives it to continue moving forward. Since the distance between the two skateboards 5 is slightly smaller than the distance between the two packaging boxes 2, the skateboard 5 is subjected to the acting force and slides toward both sides, slightly compressing the first spring 13, thereby compensating for the processing error of the packaging box 2, improving the positioning accuracy of the packaging box 2, effectively controlling the width of the cutting groove 24, improving the forming effect of the packaging box 2, ensuring the stability of the quality of the packaging box 2, and further increasing the yield of the packaging box 2.

[0029] Preferably, as Figure 3 shown, an adjusting block 14 is threadedly connected to the chassis 1. The first spring 13 is arranged between the adjusting block 14 and the skateboard 5. The first guide post 12 is slidably arranged on the adjusting block 14. A convex block 15 in contact with the adjusting block 14 is provided at the end of the first guide post 12. By rotating the adjusting block 14 on the chassis 1, the adjusting block 14 slides on the chassis 1. Through the transmission of the acting force by the first spring 13, the skateboard 5 is driven to slide on the chassis 1, thereby adjusting the initial position of the skateboard 5, realizing the calibration of the positioning of the packaging box 2, making the packaging box 2 in the central part of the chassis 1, and further increasing the yield of the packaging box 2.

[0030] Preferably, as Figure 3 shown, a second guide post 16 slidably connected to the chassis 1 is provided at the end of the fixing block 7, which plays a role in guiding the sliding of the fixing block 7 on the chassis 1, ensuring the stability of the overall structure, and further increasing the yield of the packaging box 2; a second spring 17 is provided outside the second guide post 16. The second spring 17 is arranged between the fixing block 7 and the chassis 1. The spring force generated after the second spring 17 is compressed is transmitted to the pressure roller 8 through the fixing block 7 and acts on the packaging box 2, thereby increasing the friction between the packaging box 2 and the conveyor belt, ensuring the stable feeding of the packaging box 2. At the same time, the pressure roller 8 can be adjusted slightly up and down in height to compensate for the processing error of the packaging box 2 and increase the yield of the packaging box 2.

[0031] Preferably, as Figure 1 and Figure 3As shown, the support rod 9 is arranged between two of the fixed blocks 7, so that when the pressure roller 8 adjusts its position up and down, it drives the chamfering cutting edge 10 on the support rod 9 to move together, so that the chamfering cutting edge 10 always takes the upper end surface of the packaging box 2 as the processing reference, thereby ensuring that the depth of the cutting groove 24 is always consistent, thereby improving the forming effect of the packaging box 2, while ensuring the stability of the quality of the packaging box 2, and then improving the finished product rate of the packaging box 2.

[0032] Priority, such as Figure 3 and Figure 5 As shown, a limiting plate 18 in contact with the packaging box 2 is provided in the groove 4 to prevent the two ends of the packaging box 2 from tilting up when the two sides of the packaging box 2 are subjected to extrusion force, thereby improving the yield rate of the packaging box 2; a second inclined surface 19 in contact with the packaging box 2 is provided at the end of the limiting plate 18, so that the packaging box 2 can smoothly enter between the limiting plate 18 and the base frame 1.

[0033] Priority, such as Figure 2 As shown, the longitudinal cutting blade 11 is circular, and a rotating shaft 20 rotatably connected to the support rod 9 is provided on the longitudinal cutting blade 11. A driven gear 21 is provided at the end of the rotating shaft 20, and the motor 22 is also provided on the support rod 9. The active end of the motor 22 is provided with a driving gear 23 meshing with the driven gear 21. The driving gear 23 is driven to rotate by the motor 22, and the torque is transmitted through the driven gear 21 to drive the rotating shaft 20 to rotate on the support rod 9, thereby driving the longitudinal cutting blade 11 to rotate on the support rod 9, cutting the packaging box 2 into two, and obtaining two packaging boxes 2 with independent and complete cutting grooves 24, effectively controlling the width of the cutting groove 24, improving the forming effect of the packaging box 2, and ensuring the stability of the quality of the packaging box 2, thereby improving the yield of the packaging box 2.

[0034] Priority, such as Figure 1 As shown, the feeding belt 3 includes a base frame 1 and a plurality of rollers rotatably arranged on the base frame 1 , and the plurality of rollers sequentially contact with the packaging box 2 to drive the packaging box 2 to rotate on the base frame 1 to realize the loading of the packaging box 2 .

[0035] Example 1

[0036] The utility model provides a cutting device for a food-grade packaging box 2 with good sealing performance, such as Figures 1 - 5 As shown, two packaging boxes 2 with a width interval are placed as a whole on the feeding belt 3, and the feeding belt 3 is driven to move cyclically on the base frame 1 to drive the packaging box 2 to move on the base frame 1, so as to realize the loading of the packaging box 2. At the same time, the grooves 4 provided on both sides of the base frame 1 are in sliding contact with the packaging box 2 to limit the two ends of the packaging box 2, so as to prevent the two ends of the packaging box 2 from tilting off the track and affecting the subsequent positioning of the packaging box 2, thereby improving the stability of the quality of the packaging box 2 and further improving the yield of the packaging box 2;

[0037] When the packaging box 2 slides to the end of the slide plate 5, the packaging box 2 is driven to move toward the middle through the contact between the packaging box 2 and the first inclined surfaces 6 provided at the ends of the two slide plates 5. Since the spacing between the two slide plates 5 is equal to the width of the two packaging boxes 2, and the slide plates 5 are symmetrically arranged on both sides of the base, the packaging box 2 is finally in the middle position of the base frame 1. At the same time, the pressure rollers 8 symmetrically arranged on both sides of the base frame 1 contact the two sides of the packaging box 2 respectively, and the slight warping of the two sides of the packaging box 2 is flattened, so that the packaging box 2 is flat at the center of the base, further limiting the packaging on the base frame 1. The packaging box 2 is positioned, and then two grooves 24 of width are cut in the middle of the packaging box 2 by the chamfering cutting blade 10 located in the middle of the support rod 9. Subsequently, the two spacing packaging boxes 2 are divided as a whole by the longitudinal cutting blade 11, and the packaging box 2 is divided into two, so that two packaging boxes 2 with independent and complete grooves 24 are obtained, which changes the previous method of only chamfering the edge of one packaging box 2 to be chamfered, thereby effectively controlling the width of the groove 24, improving the forming effect of the packaging box 2, and at the same time ensuring the stability of the quality of the packaging box 2, thereby improving the yield of the packaging box 2.

[0038] Example 2

[0039] Based on Example 1, Figure 3 As shown, in the initial state, the distance between the two slides 5 is slightly smaller than the distance between the two packaging boxes 2. When the packaging box 2 contacts the first inclined surfaces 6 provided at both ends of the slides 5, the force after the contact first determines that the packaging box 2 moves to the middle of the bottom frame 1, and then the force applied to the packaging box 2 by the roller drives it to continue to move forward. Since the distance between the two slides 5 is slightly smaller than the distance between the two packaging boxes 2, the slides 5 are subjected to the force and slide toward both sides, and the first spring 13 is slightly compressed, thereby compensating for the processing error of the packaging box 2 and improving the positioning accuracy of the packaging box 2, thereby effectively controlling the width of the cut groove 24, improving the forming effect of the packaging box 2, and ensuring the stability of the quality of the packaging box 2, thereby improving the yield rate of the packaging box 2.

[0040] like Figure 3 As shown, when one of the slide plates 5 deviates from the original position, the adjusting block 14 is rotated on the bottom frame 1 to make the adjusting block 14 slide on the bottom frame 1, and the first spring 13 transmits the force to drive the slide plate 5 to slide on the bottom frame 1, thereby adjusting the initial position of the slide plate 5, realizing the calibration of the positioning of the packaging box 2, so that the packaging box 2 is located in the center of the bottom frame 1, thereby improving the yield rate of the packaging box 2; in addition, as Figure 3 and Figure 5As shown, when the packaging box 2 slides to the end of the slide plate 5, the second inclined surface 19 provided at the end of the limiting plate 18 contacts the packaging box 2, so that the packaging box 2 can smoothly enter between the limiting plate 18 and the base frame 1, and the limiting plate 18 limits the two sides of the packaging box 2 to prevent the two ends of the packaging box 2 from tilting up when the two sides of the packaging box 2 are subjected to the squeezing force, thereby improving the finished product rate of the packaging box 2.

[0041] Example 3

[0042] Based on Example 1, Figure 3 As shown, when the packaging box 2 is located between the pressure roller 8 and the roller shaft, the spring force generated by the compression of the second spring 17 is transmitted to the pressure roller 8 through the fixing block 7 and acts on the packaging box 2, thereby increasing the friction between the packaging box 2 and the roller shaft to ensure stable feeding of the packaging box 2. At the same time, the pressure roller 8 can adjust the height up and down by a small range by compressing the second spring 17, thereby compensating for the processing error of the packaging box 2 and improving the yield rate of the packaging box 2.

[0043] In addition, if Figure 1 and Figure 3 As shown, since the support rod 9 is arranged between two of the fixed blocks 7, when the pressure roller 8 adjusts its position up and down, it will drive the chamfering cutting edge 10 on the support rod 9 to move together, so that the chamfering cutting edge 10 always takes the upper end surface of the packaging box 2 as the processing reference, thereby ensuring that the depth of the cutting groove 24 is always consistent, thereby improving the forming effect of the packaging box 2, while ensuring the stability of the quality of the packaging box 2, and then improving the yield of the packaging box 2.

[0044] Example 4

[0045] Based on Example 1, Figure 2 As shown, the motor 22 drives the driving gear 23 to rotate, and the torque is transmitted through the driven gear 21, driving the rotating shaft 20 to rotate on the support rod 9, thereby driving the longitudinal cutting blade 11 to rotate on the support rod 9, cutting the packaging box 2 into two, and obtaining two packaging boxes 2 with independent and complete cutting grooves 24, effectively controlling the width of the cutting groove 24, improving the forming effect of the packaging box 2, and ensuring the stability of the quality of the packaging box 2, thereby improving the yield of the packaging box 2.

Claims

1. A trimming device for enhancing the sealing performance of a liquid packaging box, comprising a feeding belt (3) arranged on a base frame (1) and used in conjunction with a packaging box (2), characterized in that: The base frame (1) is symmetrically provided with grooves (4) that are in sliding contact with the packaging box (2), a slide plate (5) is provided in the groove (4), the end of the slide plate (5) is provided with a first inclined surface (6) that is in contact with the packaging box (2), the spacing between two slide plates (5) is equal to the width of the two packaging boxes (2), the base frame (1) is symmetrically provided with a plurality of fixed blocks (7), the fixed blocks (7) are rotatably connected with a pressure roller (8) that is in contact with the packaging box (2), the base frame (1) is provided with a support rod (9), and the middle part of the support rod (9) is provided with a chamfering cutting edge (10) and a longitudinal cutting edge (11) that are in contact with the packaging box (2).

2. The edge trimming device for enhancing the sealing performance of a liquid packaging box according to claim 1, characterized in that: The end of the slide plate (5) is provided with a first guide column (12) which is slidably connected to the base frame (1), and the outer side of the first guide column (12) is sleeved with a first spring (13), and the first spring (13) is arranged between the base frame (1) and the slide plate (5).

3. The edge trimming device for enhancing the sealing performance of a liquid packaging box according to claim 2, characterized in that: An adjusting block (14) is threadedly connected to the base frame (1), the first spring (13) is arranged between the adjusting block (14) and the slide plate (5), the first guide column (12) is slidably arranged on the adjusting block (14), and the end of the first guide column (12) is provided with a protrusion (15) in contact with the adjusting block (14).

4. The edge trimming device for enhancing the sealing performance of a liquid packaging box according to claim 1, characterized in that: A second guide column (16) slidably connected to the base frame (1) is provided at the end of the fixed block (7), a second spring (17) is provided on the outer side of the second guide column (16), and the second spring (17) is arranged between the fixed block (7) and the base frame (1).

5. The edge trimming device for enhancing the sealing performance of a liquid packaging box according to claim 4, characterized in that: The support rod (9) is arranged between two of the fixing blocks (7).

6. The edge trimming device for enhancing the sealing performance of a liquid packaging box according to claim 1, characterized in that: A limiting plate (18) in contact with the packaging box (2) is provided in the groove (4), and a second inclined surface (19) in contact with the packaging box (2) is provided at the end of the limiting plate (18).

7. The edge trimming device for enhancing the sealing performance of a liquid packaging box according to claim 1, characterized in that: The longitudinal cutting blade (11) is circular, and is provided with a rotating shaft (20) rotatably connected to the support rod (9), and a driven gear (21) is provided at the end of the rotating shaft (20). The motor (22) is also provided on the support rod (9), and a driving gear (23) meshing with the driven gear (21) is provided at the movable end of the motor (22).

8. The edge trimming device for enhancing the sealing performance of a liquid packaging box according to claim 1, characterized in that: The feeding belt (3) comprises a base frame (1) and a plurality of rollers rotatably arranged on the base frame (1), and the plurality of rollers are in contact with the packaging box (2) in sequence.

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