Back clamping bag rounding device

Abstract

The utility model discloses a back clamping bag rounding device which comprises a bottom plate, a cutting knife and a driving piece, the driving piece is arranged on one side of the bottom plate, the cutting knife is directly or indirectly arranged on the driving piece, a first through hole and a second through hole are formed in the bottom plate, and the first through hole is communicated with the second through hole. The second through holes are formed in the two ends of the first through hole, the first through hole and the second through holes are in a communicating state, an arc transition part is arranged between the first through hole and the second through holes, and the cutting knife comprises a first cutting part and a second cutting part; the two ends of the first cutting part are respectively provided with a second cutting part, the first cutting part is provided with two linear cutting edges, arc cutting edges are arranged between the first cutting part and the second cutting parts, and the two ends of each linear cutting edge are respectively connected with one arc cutting edge. According to the device, the cutting operation is completed while the bottom of the back sealing bag is chamfered.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of electronic product accessories, especially relates to a back clamping bag rounding device. BACKGROUND

[0002] At present, many back clamping bags are made of hard plastic (including but not limited to PET), if the edges of such bags made of hard plastic have sharp corners, these sharp corners are likely to cause harm to the user, in order to avoid unnecessary harm to the user caused by the sharp corners on the bag, the edges of the bag must be rounded, patent announcement document CN221315324U discloses a device that can round the bag, the device cuts the bag through its rounding knife (document reference number 20) to cut a rounded corner at the edge of the bag, but the bags are connected together when they come down from the bag production line, since the device cannot cut the bag into independent individuals during the rounding process, the bags need to be cut into independent individuals after rounding. SUMMARY

[0003] The utility model discloses a back clamping bag rounding device, the first shuttle hole and the second shuttle hole for accommodating the cutting knife are arranged on the bottom plate, the straight line cutting edge and the arc cutting edge are arranged on the cutting knife, the rounding of the back sealing bag bottom is realized, and the cutting operation is completed.

[0004] The technical scheme adopted by the utility model is as follows:

[0005] A back clamping bag rounding device, comprising a bottom plate, a cutting knife and a driving piece, the driving piece is arranged on one side of the bottom plate, the cutting knife is directly or indirectly arranged on the driving piece, the first shuttle hole and the second shuttle hole are arranged on the bottom plate, the two ends of the first shuttle hole are provided with the second shuttle hole, the first shuttle hole and the second shuttle hole are in communication, an arc transition part is arranged between the first shuttle hole and the second shuttle hole, the cutting knife comprises a first cutting part and a second cutting part, one second cutting part is arranged at the two ends of the first cutting part respectively, two straight line cutting edges are arranged on the first cutting part, an arc cutting edge is arranged between the first cutting part and the second cutting part, and the two ends of each straight line cutting edge are respectively connected with an arc cutting edge.

[0006] The working process of the present kind of rounding device is as follows: firstly, two (or more) back clamping bags (commonly known as back clamping bag lines in the industry) connected together are placed on the bottom plate, and the heat sealing area on the back clamping bag is located above the first shuttle hole and the second shuttle hole, then the cutting knife runs towards the bottom plate, so that the first cutting part enters the first shuttle hole through the heat sealing area, and the second cutting part enters the second shuttle hole through the heat sealing area, by the cutting action of the straight cutting edge and the arc cutting edge, the straight cutting edge and the arc cutting edge can cut the heat sealing area at the same time and divide it into two segments. In the present kind of rounding device, the heat sealing area is cut by two straight cutting knives, and the arc cutting edge cuts a rounded corner on the back clamping bag.

[0007] In summary, in the present kind of rounding device, by providing the first shuttle hole and the second shuttle hole on the bottom plate for accommodating the cutting knife, and providing the straight cutting edge and the arc cutting edge on the cutting knife, the rounding of the bottom of the back sealing bag is realized at the same time as the cutting operation is completed.

[0008] Optionally, it further includes a mounting plate, the mounting plate cooperates with the driving part, the cutting knife is arranged on the mounting plate, and the cutting knife is located between the mounting plate and the bottom plate.

[0009] The cutting knife is mounted on the mounting plate, and when the back clamping bag is cut, the back clamping bag is clamped between the bottom plate and the mounting plate, so that the stability of the back clamping bag during cutting can be improved.

[0010] Optionally, it further includes a top plate and a plurality of support columns, the support columns are arranged on the top plate, the top plate and the bottom plate are cooperated together through the support columns, the driving part is arranged on the top plate, and the mounting plate and the support columns are slidingly cooperated together.

[0011] Specifically, screw holes are formed on the bottom plate, the support columns are cooperated with the screw holes on the bottom plate, and the support columns and the top plate can be cooperated through threaded connection, welding, or fasteners such as nuts and screws.

[0012] Optionally, a guide sleeve is arranged in the through hole of the mounting plate, and the guide sleeve and the support column are slidingly cooperated together.

[0013] Specifically, the driving part (i.e. the cylinder) drives the mounting plate to move, and the mounting plate and the support column are slidingly cooperated together through the guide sleeve on the through hole of the mounting plate, so that the stability of the mounting plate when sliding along the support column can be improved.

[0014] Optionally, the guide sleeve is a cylindrical guide sleeve, and the support column is a cylindrical support column.

[0015] Optionally, the driving part is a cylinder, and the cylinder rod of the cylinder cooperates with the cutting knife.

[0016] Optionally, the cylinder rod of the air cylinder is perpendicular to the bottom plate.

[0017] Optionally, the cutting knife is perpendicular to the cylinder rod.

[0018] The beneficial effects of the present application are: by setting the first shuttle hole and the second shuttle hole on the bottom plate for accommodating the cutting knife, and setting the straight cutting edge and the arc cutting edge on the cutting knife, the back-sealed bag bottom corner rounding is realized at the same time as the cutting operation is completed. BRIEF DESCRIPTION OF DRAWINGS

[0019] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the drawings needed in the embodiments will be briefly introduced below, and obviously, the drawings in the following description are only some embodiments described in the present application, and other drawings can also be obtained by those skilled in the art according to these drawings.

[0020] Figure 1 is a structural schematic diagram of the back clamping bag corner rounding device;

[0021] Figure 2 is a structural schematic diagram of the bottom plate;

[0022] Figure 3 is a structural schematic diagram of the cutting knife;

[0023] Figure 4 is a structural schematic diagram of the back clamping bag line;

[0024] Figure 5 is a structural schematic diagram of a single back clamping bag.

[0025] The various reference signs in the drawings are: 1, air cylinder; 101, cylinder rod; 2, top plate; 3, support column; 4, guide sleeve; 5, mounting plate; 6, bottom plate; 601, first shuttle hole; 602, second shuttle hole; 603, arc transition part; 604, screw hole; 701, first cutting part; 7011, straight cutting edge; 702, second cutting part; 7021, arc cutting edge. DETAILED DESCRIPTION

[0026] In order to make the above-mentioned purposes, features and advantages of the present application more obvious and easy to understand, the specific embodiments of the present application will be described in detail below with reference to the drawings.

[0027] In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present application. However, it will be apparent to one skilled in the art that the present application can be practiced without the specific details set forth in this description. In other instances, well-known methods, procedures, components, and circuits have not been described in detail as not to unnecessarily obscure aspects of the present application.

[0028] In the description of the present application, it should be noted that the terms used herein are for the purpose of describing specific embodiments only and are not intended to limit the exemplary embodiments according to the present application. For the purpose of description, the dimensions of the various parts shown in the drawings are not drawn in proportion. The techniques, methods, and devices known to those of ordinary skill in the relevant art can not be discussed in detail, but should be considered as part of the authorized description. In all examples shown and discussed herein, any specific value should be interpreted as merely exemplary and not as a limitation. Therefore, other examples of exemplary embodiments can have different values. It should be noted that similar reference numerals and letters represent similar items in the following drawings, and therefore, once an item is defined in one drawing, it need not be further discussed in subsequent drawings.

[0029] As shown in the accompanying Figure 1 As shown in the accompanying Figure 3 As shown in the accompanying drawings, a back bag rounding device includes a bottom plate 6, a cutting knife, and a driving member. The driving member is arranged on one side of the bottom plate 6, and the cutting knife is directly or indirectly arranged on the driving member. The bottom plate 6 is provided with a first shuttle hole 601 and a second shuttle hole 602. The first shuttle hole 601 is provided with the second shuttle hole 602 at both ends. The first shuttle hole 601 and the second shuttle hole 602 are in communication. An arc transition part 603 is arranged between the first shuttle hole 601 and the second shuttle hole 602. The cutting knife includes a first cutting part 701 and a second cutting part 702. The first cutting part 701 is respectively provided with one second cutting part 702 at both ends. The first cutting part 701 is provided with two straight cutting edges 7011. An arc cutting edge 7021 is arranged between the first cutting part 701 and the second cutting part 702. Both ends of each straight cutting edge 7011 are respectively connected to an arc cutting edge 7021.

[0030] The working process of the rounding device is as follows. First, two (or more) back bags connected together (generally referred to as back bag lines in the industry, and the structure can be referred to as shown in the accompanying Figure 4 The heat sealing area on the back bag (i.e., the accompanying Figure 4The black area in the middle is the heat-sealing area. Figure 5 The black area in the middle is the heat-sealing area. Figure 5 The black area in the middle is the heat-sealing area.

[0031] In summary, in this kind of chamfering device, by setting the first shuttle hole 601 and the second shuttle hole 602 on the bottom plate 6 for accommodating the cutting knife, and setting the straight cutting edge 7011 and the arc cutting edge 7021 on the cutting knife, the chamfering of the back sealing bag bottom and the cutting operation are completed at the same time.

[0032] As shown in Figure 1 As shown in Figure 3 It also includes a mounting plate 5, which cooperates with the driving part. The cutting knife is arranged on the mounting plate 5, and the cutting knife is located between the mounting plate 5 and the bottom plate 6.

[0033] When the cutting knife is installed on the mounting plate 5, the back clip bag is clamped between the bottom plate 6 and the mounting plate 5, which can improve the stability of the back clip bag during cutting.

[0034] As shown in Figure 1 As shown in Figure 3 It also includes a top plate 2 and a plurality of support columns 3. The top plate 2 and the bottom plate 6 are cooperated together through the support columns 3. The driving part is arranged on the top plate 2. The mounting plate 5 and the support columns 3 are slidingly cooperated together.

[0035] Specifically, screw holes 604 are arranged on the bottom plate 6. The support columns 3 are cooperated with the screw holes 604 on the bottom plate 6. The support columns 3 and the top plate 2 can be cooperated through threaded connection, welding or fasteners such as nuts and screws.

[0036] As shown in Figure 1 As shown in Figure 3 The mounting plate 5 is provided with a guide sleeve 4 in the through hole. The guide sleeve 4 and the support columns 3 are slidingly cooperated together.

[0037] The specific driving member (i.e., the cylinder 1) pushes the mounting plate 5 to move, and the mounting plate 5 slides together with the support column 3 through the guide sleeve 4 on its own through hole (the guide sleeve 4 is fixed together with the mounting plate 5), which can improve the stability of the mounting plate 5 when sliding along the support column 3.

[0038] As attached Figure 1 ~Attached Figure 3 As shown, the guide sleeve 4 is a cylindrical guide sleeve 4 , and the support column 3 is a cylindrical support column 3 .

[0039] As attached Figure 1 ~Attached Figure 3 As shown, the driving member is a cylinder 1, and the cylinder rod 101 of the cylinder 1 cooperates with the cutting knife.

[0040] Using the cylinder 1 as a driving member can ensure a higher cutting speed during cutting.

[0041] As attached Figure 1 ~Attached Figure 3 As shown, the cylinder rod 101 of the cylinder 1 is perpendicular to the base plate 6 .

[0042] As attached Figure 1 ~Attached Figure 3 As shown, the cutting blade is perpendicular to the cylinder rod 101 .

[0043] The above-described embodiments only express some embodiments of the present invention. The description is relatively specific and detailed, but it should not be understood as limiting the scope of the patent of the present invention. It should be pointed out that for those skilled in the art, it is still possible to modify the technical solutions described in the above-mentioned embodiments or to replace some of the technical features therein with equivalents. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of this utility model should be included in the scope of protection of this utility model.

Claims

1. A back clip bag radius corner device, characterized by, The utility model provides cutting device, including bottom plate, cutting knife and drive piece, drive piece sets up one side of bottom plate, cutting knife directly or indirectly sets up drive piece, the first shuttle hole and second shuttle hole are seted up on bottom plate, both ends of first shuttle hole all are provided with second shuttle hole, first shuttle hole and second shuttle hole are in the state of intercommunication, the circular arc transition part is arranged between first shuttle hole and second shuttle hole, cutting knife includes first cutting part and second cutting part, both ends of first cutting part respectively each is provided with a second cutting part, two straight cutting edges are seted up on first cutting part, and the circular arc cutting edge is arranged between first cutting part and second cutting part, and both ends of each straight cutting edge is respectively connected with a circular arc cutting edge.

2. A device for rounding the corners of a back clasp bag according to claim 1, characterized in that It also includes a mounting plate, the mounting plate is matched with the drive piece, the cutting knife is arranged on the mounting plate, and the cutting knife is located between the mounting plate and the bottom plate.

3. A device for rounding the corners of a back clasp bag according to claim 2, characterized in that, It also includes a top plate and a plurality of support columns, the top plate and the bottom plate are matched together through the support columns, the drive piece is arranged on the top plate, and the mounting plate and the support columns are slidingly matched together.

4. A device for rounding the corners of a back clasp bag according to claim 3, characterized in that A guide sleeve is arranged in the through hole of the mounting plate, and the guide sleeve is slidingly matched with the support columns.

5. A device for rounding the corners of a back clip bag according to claim 4, wherein The guide sleeve is a cylindrical guide sleeve, and the support columns are cylindrical support columns.

6. The device of claim 1, wherein: The drive piece is a pneumatic cylinder, and the cylinder rod of the pneumatic cylinder is matched with the cutting knife.

7. A back clip pocket radius device according to claim 6, wherein, The cylinder rod of the pneumatic cylinder is perpendicular to the bottom plate.

8. A back clip pocket radius corner device according to claim 6, wherein, The cutting knife is perpendicular to the cylinder rod.

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