Product packaging box QC cutting jig
By designing a QC cutting fixture for product packaging boxes, the problem of inconsistent cutting of sealing edges was solved, the accuracy and efficiency of sample sampling were achieved, and the reliability of tear force testing was ensured.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-31
- Publication Date
- 2026-03-31
AI Technical Summary
In the existing technology, inconsistent cutting and sampling of the sealing edge of the product packaging box leads to detection errors and makes it impossible to accurately evaluate the tear force.
A product packaging box QC cutting fixture was designed, including a fixing block, a base, a cover plate, a pull rod, equal-height bolts, a spring, and a punch cutter. Through the elastic support of the spring and the locking device, the sample can be accurately positioned and cut consistently. Combined with a buffer structure and a height adjustment mechanism, the cutting efficiency and accuracy are ensured.
This achieved consistency in sample size, improved the accuracy of tear strength testing and cutting efficiency, and reduced human error.
Smart Images
Figure CN224060011U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of product packaging box inspection technology, and in particular to a product packaging box QC cutting fixture. Background Technology
[0002] Many medical supplies require sealed packaging in PVC boxes. Figure 1 These packaging boxes are generally sealed by gluing and pressing on all four sides. The sealing effect directly affects the preservation of medical supplies inside the box. In addition, the tear strength of the sealed edge of the packaging box also affects its use. If the tear strength is too great, it will be difficult to tear open. If the tear strength is too small, it will affect its sealing performance. Therefore, it is necessary to use QC (Quality Control) professional equipment to test its tear strength.
[0003] During testing, it is necessary to first sample the sealing edge of the packaging box. The current sampling method is to directly cut a certain size of the sealing edge as a test sample by hand. This method is time-consuming and labor-intensive, and is affected by personnel. It is impossible to guarantee the consistency of the size of each cut, which will lead to testing errors and make it impossible to accurately evaluate the tear strength of the sealing edge of the packaging box.
[0004] In view of this, it is necessary to improve the existing sample cropping to solve the above problems. Utility Model Content
[0005] The technical problem to be solved by this utility model is: in order to overcome the shortcomings of the prior art, this utility model provides a product packaging box QC cutting fixture.
[0006] The technical solution adopted by this utility model to solve its technical problem is: a product packaging box QC cutting fixture, including a fixing block, a base, a cover plate, a pull rod, equal-height bolts, a spring, and a punch cutter. The fixing block is disposed above the base, and a lateral notch is provided on the side of the fixing block. A punch cavity is provided on the fixing block above the notch, and the punch cutter is disposed in the punch cavity. The cover plate is disposed above the punch cutter, and the cover plate and the punch cutter are fixedly connected and locked by a first internal hexagonal bolt. The pull rod is disposed above the cover plate and is fixedly connected to the cover plate. In this embodiment, the pull rod is an inverted T-shaped structure. The lower part is fixed to the cover plate by a second internal hexagonal bolt; there are multiple equal-height bolts, which are set in the punch cavities on the left and right sides of the punch cutter. Each equal-height bolt is fitted with a spring. The lower end of the equal-height bolt is connected to the fixing block, and the upper end is movably connected to the cover plate. The spring is elastically supported between the fixing block and the cover plate. When pressed down, the spring is compressed, and the cover plate can move up and down on the equal-height bolt. When the pull rod is released, the punch cutter and the cover plate are lifted up under the action of the spring. The fixing block below the notch forms a cutting table. The cutting table has a material discharge port in the middle, which is located directly below the punch cutter.
[0007] Furthermore, the bottom edge of the punch cutter is provided with a punch cut, which is a zigzag shape with varying heights. The zigzag shape will form a sharp point, making it easier to cut into the sample. Since the sample has a certain thickness, in order to avoid damaging the sample during cutting, an avoidance groove is formed on the inner side of the punch cut.
[0008] Furthermore, it also includes a buffer structure, which includes a buffer washer and a fourth internal hexagonal socket head cap screw. The bottom of the punch cutter has two washer mounting holes, which are stepped holes with a smaller top and a larger bottom. The stepped holes can ensure that the buffer washer deforms under force and releases stress when pressed down. Above the washer mounting holes, there is a fourth threaded hole communicating with them. Each washer mounting hole contains one of the buffer washers. The fourth internal hexagonal socket head cap screw passes through the buffer washer from bottom to top, and its upper end is threaded into the fourth threaded hole, fixing the buffer washer in the washer mounting hole.
[0009] Furthermore, the bottom of the buffer washer extends into the clearance groove of the punch cutter.
[0010] Furthermore, the bottom left and right sides of the punch cavity are provided with bosses, and the bosses are provided with bolt positioning holes corresponding to the positions of the equal-height bolts. The bottom of the equal-height bolts is embedded in the bolt positioning holes and fixedly connected to them.
[0011] Furthermore, in order to achieve rapid positioning, the upper surface of the base is provided with a slot, and the fixing block is inserted into the slot; the base at the front end of the slot is provided with a guide port, and the base at the rear end of the slot is provided with a third threaded hole, and a third internal hexagonal cylindrical bolt passes through the base from bottom to top and connects to the third threaded hole to achieve locking and fixing between the fixing block and the base.
[0012] Furthermore, to ensure safety, a locking device is also included. The locking device includes a knob plunger and a second nut. The side of the fixing block has a transverse through hole, and the punch cutter has a blind hole opposite the through hole. The knob plunger includes an outer sleeve and a plunger. The plunger is located inside the outer sleeve and can be pulled axially within the outer sleeve. The second nut is located on the outer sleeve and fixes the outer sleeve of the knob plunger to the through hole of the fixing block. When locked, one end of the plunger passes through the through hole and is inserted into the blind hole. When unlocked, the plunger is pulled outward so that the end comes out of the blind hole.
[0013] Furthermore, the base is also provided with a height adjustment mechanism, which includes a knob and a first nut. The left and right sides of the base are provided with outwardly turned edges, and the edges are provided with connecting grooves. The knob is set in the connecting groove, and the first nut is a square nut that is threadedly connected to the knob below the connecting groove.
[0014] The beneficial effects of this utility model are: the product packaging box QC cutting fixture provided by this utility model can ensure the consistency of sample size when cutting samples by this fixture, thereby ensuring the accuracy of tear force test and improving cutting efficiency. Attached Figure Description
[0015] The present invention will be further described below with reference to the accompanying drawings and embodiments.
[0016] Figure 1 This is a structural diagram of a PVC packaging box.
[0017] Figure 2 This is a three-dimensional structural diagram of the QC cutting fixture for product packaging boxes.
[0018] Figure 3 This is an exploded view of the QC cutting fixture for product packaging boxes.
[0019] Figure 4 This is a top view of the QC cutting fixture for product packaging boxes.
[0020] Figure 5 yes Figure 4 A schematic diagram of the cross-sectional structure of AA.
[0021] Figure 6 yes Figure 4 A schematic diagram of the cross-sectional structure of BB.
[0022] Figure 7 This is a schematic diagram of the assembly structure of the punch cutter and the fixing block.
[0023] Figure 8 This is a schematic diagram of the fixed block.
[0024] Figure 9 This is a structural diagram of the base.
[0025] Figure 10 This is a schematic diagram of the punch cutter.
[0026] Figure 11 This is a cross-sectional structural diagram of the punch cutter.
[0027] In the image: 100, packaging box; 101, sealing edge; 102, cutting position.
[0028] 1. Fixing block; 1.1. Material inlet; 1.2. Punch cavity; 1.3. Through hole; 1.4. Boss; 1.5. Bolt positioning hole; 2. Base; 2.1. Slot; 2.2. Third threaded hole; 2.3. Guide port; 2.4. Edge; 2.5. Connecting groove; 3. Cover plate; 4. Tie rod; 5. Equal height bolt; 6. Spring; 7. First hexagon socket head cap screw; 8. Second hexagon socket head cap screw; 9. Punch cutter; 9.1. Punch notch; 9.2. Blind hole; 9.3. First threaded hole; 9.4. Fourth threaded hole; 9.5. Washer mounting hole; 9.6. Clearance groove; 10. Third hexagon socket head cap screw; 11. Buffer washer; 12. Fourth hexagon socket head cap screw; 13. Knob plunger; 13.1. Outer sleeve; 13.2. Plunger; 14. Knob; 15. First nut; 16. Second nut. Detailed Implementation
[0029] The technical solution of this utility model will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.
[0030] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.
[0031] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances. Furthermore, the technical features involved in the different embodiments of this utility model described below can be combined with each other as long as they do not conflict with each other.
[0032] like Figure 1The diagram shows a PVC packaging box structure. The packaging box 100 has a sealing edge 101 on its edge. When sampling, a cut is made on the sealing edge 101, and the cut position 102 is shown in the red box in the figure. This embodiment only provides a packaging box structure with a sealing edge as an example. The packaging boxes targeted by this utility model include, but are not limited to, the above structure. They can also be other shapes of packaging box structures with sealing edges 101.
[0033] like Figures 2-7 As shown, this utility model discloses a product packaging box QC cutting fixture, including a fixing block 1, a base 2, a cover plate 3, a pull rod 4, an equal-height bolt 5, a spring 6, and a punch cutter 9. The fixing block 1 is disposed above the base 2, and a lateral notch is provided on the side of the fixing block 1. A punch cavity 1.2 is provided on the fixing block 1 above the notch, and the punch cutter 9 is disposed in the punch cavity 1.2. The cover plate 3 is disposed above the punch cutter 9, and the cover plate 3 is fixedly connected to the punch cutter 9 by a first internal hexagonal bolt 7. The pull rod 4 is disposed above the cover plate 3 and is fixedly connected to the cover plate 3. In this embodiment, the pull rod 4 is an inverted T-shaped structure, and the lower part of the T-shaped structure is connected to the cover plate by a second internal hexagonal bolt 8. 3. Fixed connection; There are multiple equal-height bolts 5. In this embodiment, there are four equal-height bolts 5 and four springs 6, which are set in the punch cavities 1.2 on the left and right sides of the punch cutter 9. Each equal-height bolt 5 is fitted with a spring 6. The lower end of the equal-height bolt 5 is connected to the fixing block 1, and the upper end is movably connected to the cover plate 3. The spring 6 is elastically supported between the fixing block 1 and the cover plate 3. When pressed down, the spring 6 is compressed, and the cover plate 3 can move up and down on the equal-height bolt 5. When the pull rod 4 is released, the punch cutter 9 and the cover plate 3 are lifted up under the action of the spring 6. The fixing block 1 below the notch forms a cutting table. The cutting table has a material drop port 1.1 in the middle, which is located directly below the punch cutter 9.
[0034] like Figure 2 As shown, the base 2 is also equipped with a height adjustment mechanism, which includes a knob 14 and a first nut 15. Both the left and right sides of the base 2 have outwardly turned edges 2.4, with connecting grooves 2.5 on the edges 2.4. The knob 14 is located within the connecting grooves 2.5. The first nut 15 is a square nut, threadedly connected to the knob 14 below the connecting groove 2.5. The first nut 15 (i.e., the square nut) can be embedded in other fixed components, so that when adjusting the knob 14, the first nut 15 remains relatively stationary; alternatively, a pad can be added to the bottom of the base 2 to achieve height adjustment. The knob 14 on the base 2, in conjunction with the first nut 15, can adjust the height of the base 2. Furthermore, the first nut 15 and the knob 14 can also lock the base 2 onto other mechanisms or components, thus fixing the entire fixture.
[0035] like Figure 10 and Figure 11 As shown, the bottom edge of the punch cutter 9 has a punch cut 9.1. The axial section of the punch cut 9.1 is wedge-shaped, and the bottom edge cutting edge is a zigzag shape with varying heights. The zigzag shape forms a sharp point, which, combined with the wedge shape, makes it easier to cut into the sample. Since the sample has a certain thickness, to avoid damaging the sample during cutting, a clearance groove 9.6 is formed on the inner side of the punch cut 9.1. The top of the punch cutter 9 has multiple first threaded holes 9.3 for connecting first internal hexagonal socket head cap screws 7. In this embodiment, there are two first internal hexagonal socket head cap screws 7, so there are also two first threaded holes 9.3.
[0036] like Figure 5 As shown, it also includes a buffer structure, which includes a buffer washer 11 and a fourth hexagon socket head cap screw 12. The bottom of the punch cutter 9 has two washer mounting holes 9.5. The washer mounting holes 9.5 are stepped holes, smaller at the top and larger at the bottom. The stepped holes ensure that the buffer washer 11 deforms under pressure when pressed down, releasing stress. Above the washer mounting holes 9.5, there is a fourth threaded hole 9.4 communicating with them. Each washer mounting hole 9.5 contains one of the buffer washers 11. The fourth hexagon socket head cap screw 12 passes through the buffer washer 11 from bottom to top, and its upper end is threaded into the fourth threaded hole 9.4, fixing the buffer washer 11 in the washer mounting hole 9.5. The bottom of the buffer washer 11 extends into the relief groove 9.6 of the punch cutter 9.
[0037] like Figure 8 As shown, in order to accommodate the length of the equidistant bolts, the bottom left and right sides of the punch cavity 1.2 are provided with bosses 1.4. The bosses 1.4 are provided with bolt positioning holes 1.5 corresponding to the positions of the equal height bolts 5. The bottom of the equal height bolts 5 is embedded in the bolt positioning holes 1.5 and fixedly connected to them.
[0038] like Figure 9 As shown, in order to achieve rapid positioning, the upper surface of the base 2 is provided with a slot 2.1, and the fixing block 1 is inserted into the slot 2.1; the base 2 at the front end of the slot 2.1 is provided with a guide port 2.3, and the base 2 at the rear end of the slot 2.1 is provided with a third threaded hole 2.2. The third internal hexagonal cylindrical bolt 10 passes through the base 2 from bottom to top and is connected to the third threaded hole 2.2 to achieve locking and fixing between the fixing block 1 and the base 2.
[0039] like Figure 6As shown, it also includes a locking device, which includes a knob plunger 13 and a second nut 16. The side of the fixing block 1 has a transverse through hole 1.3, and the punch cutter 9 has a blind hole 9.2, which is directly opposite the through hole 1.3. The knob plunger 13 includes an outer sleeve 13.1 and a plunger 13.2. The plunger 13.2 is disposed inside the outer sleeve 13.1 and can be pulled axially within the outer sleeve 13.1. The second nut 16 is disposed on the outer sleeve 13.1 and fixes the outer sleeve 13.1 of the knob plunger 13 to the through hole 1.3 of the fixing block 1 through the second nut 16. When locked, one end of the plunger 13.2 passes through the through hole 1.3 and is inserted into the blind hole 9.2. When unlocked, the plunger 13.2 is pulled outward so that the end comes out of the blind hole 9.2.
[0040] Working principle: First, place the sealing edge of the packaging box to be sampled on the cutting table in the recess; then, press down the pull rod 4, and push the cover plate 3 and the punch cutter 9 downward in sequence. The punch cutter 9.1 of the punch cutter 9 cuts the sealing edge downward, and the cut sealing edge falls into the sampling box from the material drop port 1.1 and the guide port 2.3 below.
[0041] During the pressing process, the cover plate 3 compresses the spring 6, generating elastic force on the spring 6. When the cutting is completed, the pull rod 4 is released, and the punch cutter 9 springs upward and resets under the action of the spring 6. At the same time, the equalizing bolt 5 also has a guiding function for the cover plate 3.
[0042] When not in use, the knob plunger 13 is locked into the blind hole 9.2 of the punch cutter 9 to lock the punch cutter 9. The internal components of the punch cavity 1.2 will not produce downward cutting motion under force, thus ensuring safety.
[0043] Based on the above-described preferred embodiments of this utility model, and through the foregoing description, those skilled in the art can make various changes and modifications without departing from the scope of this utility model. The technical scope of this utility model is not limited to the contents of the specification, but must be determined according to the scope of the claims.
Claims
1. A product packaging box QC cutting jig, characterized in that: The utility model provides a cutting device, including fixed block, base, cover plate, pull rod, equal height bolt, spring and punch cutter, the fixed block sets up above base, and the lateral recess is equipped on the side of fixed block, is equipped with punch cavity on the fixed block above the recess, the punch cutter sets up in punch cavity, the cover plate sets up above punch cutter, and the cover plate is fixedly connected with punch cutter, and the pull rod sets up above cover plate and is fixedly connected with cover plate, the equal height bolt is a plurality of, sets up in punch cavity left and right sides of punch cutter, is equipped with a spring on each equal height bolt, the lower end of equal height bolt is connected with fixed block, and the upper end is movably connected with cover plate, and spring elasticity supports between fixed block and cover plate, the recess below the fixed block forms cutting table, the middle part of cutting table is equipped with blanking hole, and the blanking hole sets up directly below punch cutter.
2. The product package QC cutting jig of claim 1, wherein: The bottom edge of the punch cutter is provided with a punch cutout in the shape of a wavy line, and an avoidance groove is formed on the inner side of the punch cutout.
3. The product package QC cutting jig of claim 1, wherein: The utility model also includes a buffer structure, which comprises a buffer washer and a fourth inner hexagonal cylindrical bolt, the bottom of the punch cutter is provided with two washer mounting holes, the washer mounting holes are stepped holes with a small upper diameter and a large lower diameter, a fourth threaded hole is formed above each washer mounting hole and communicates with the washer mounting hole, one buffer washer is arranged in each washer mounting hole, and the fourth inner hexagonal cylindrical bolt penetrates the buffer washer from bottom to top and is screwed into the fourth threaded hole at the upper end to fix the buffer washer in the washer mounting hole.
4. The product package QC cutting jig of claim 3, wherein: The bottom of the buffer washer extends into the avoidance groove of the punch cutter.
5. The product package QC cutting jig of claim 1, wherein: The bottom left and right sides of the punch cavity are also provided with bosses, the bosses are provided with bolt positioning holes corresponding to the positions of the equal height bolts, and the bottom of each equal height bolt is embedded in the bolt positioning hole and fixedly connected therewith.
6. The product package QC trim jig of claim 1, wherein: The upper surface of the base is provided with a clamping groove, the fixed block is clamped into the clamping groove, a material guide hole is formed at the front end of the base, a third threaded hole is formed at the rear end of the base, a third inner hexagonal cylindrical bolt penetrates the base from bottom to top and is connected to the third threaded hole to lock and fix the fixed block and the base.
7. The product package QC trim jig of claim 1, wherein: The utility model also includes a locking device, which comprises a knob plunger and a second nut, a through hole is formed in the lateral side of the fixed block, a blind hole is formed in the punch cutter and faces the through hole, the knob plunger comprises a sleeve and a plunger, the plunger is arranged inside the sleeve and can be pulled out in the axial direction of the sleeve, the second nut is arranged on the sleeve and fixedly connects the sleeve of the knob plunger to the through hole of the fixed block, when locked, one end of the plunger penetrates the end of the through hole and is inserted into the blind hole, and when unlocked, the plunger is pulled outwards to make the end come out of the blind hole.
8. The product package QC trim jig of claim 1, wherein: The base is also provided with a height adjusting mechanism, the left and right sides of the base are each provided with an outwardly turned extension edge, the extension edge is provided with a connecting groove, the knob is arranged in the connecting groove, and the first nut is a square nut and is screwed onto the knob below the connecting groove.