Bag body forming point cutting device and bag body forming machine

Abstract

The utility model aims to disclose a bag body forming point-cutting device and a bag body forming machine, and relates to the technical field of bag body forming, the bag body forming point-cutting device comprises a point-cutting roller, a supporting roller and an adjusting assembly, a wedge-shaped groove is formed in the axial direction of the point-cutting roller, and a plurality of wedge-shaped blocks are arranged in the wedge-shaped groove; a first point cutter is mounted in the first transverse cutter groove, and a second point cutter is mounted in the second transverse cutter groove; a first step is arranged at the bottom of the first adjusting block and supports the bottom of the first point cutter, and a first jackscrew is installed in the middle of the first adjusting block. A first step is arranged at the bottom of the first adjusting block, a second step is arranged at the bottom of the second adjusting block, the bottom of the second point cutter is supported by the second step, and a second jackscrew is installed in the middle of the second adjusting block. Adjustment can be achieved by screwing the first jackscrew. Similarly, the height of the second point cutter can be adjusted by screwing the second jackscrew.

Description

Technical Field

[0001] The utility model relates to the technical field of bag forming, in particular to a bag forming point cutting device and a bag forming machine. Background Art

[0002] With the improvement of environmental protection concept, the use of mailing paper bags is increasing, and recyclable mailing paper bags are becoming more and more popular. Such mailing paper bags are provided with a tongue, the purpose of which is to quickly seal the mailing paper bags.

[0003] With the intensification of e-commerce competition, people have a higher pursuit of the forming efficiency of mailing paper bags. In the prior art, such as CN115782302A, the height adjustment of the point cutter is inconvenient.

[0004] In view of this, there is an urgent need to develop a bag forming point cutting device and a bag forming machine. Summary of the Invention

[0005] The purpose of the utility model is to disclose a bag forming point cutting device and a bag forming machine.

[0006] To achieve the first object of the invention, the present invention provides a bag forming spot cutting device, comprising a spot cutting roller, a support roller and an adjustment assembly, wherein a wedge-shaped groove is provided along the axial direction of the spot cutting roller, and a plurality of wedge-shaped blocks are provided in the wedge-shaped groove;

[0007] A first inclined surface and a second inclined surface are respectively provided on both sides of the wedge-shaped block, a first transverse knife groove is provided between the first inclined surface and the wedge-shaped groove, a first point cutter is installed in the first transverse knife groove, a second transverse knife groove is provided between the second inclined surface and the wedge-shaped groove, a second point cutter is installed in the second transverse knife groove;

[0008] A plurality of first hollow portions are provided adjacent to the first inclined surface, a first adjustment block is installed in the first hollow portions, a first step is provided at the bottom of the first adjustment block, the first step supports the bottom of the first point cutter, and a first top screw is installed in the middle of the first adjustment block;

[0009] A plurality of second hollow portions are arranged adjacent to the second inclined surface, a second adjusting block is installed in the second hollow portion, a second step is arranged at the bottom of the second adjusting block, the second step supports the bottom of the second point cutter, and a second top screw is installed in the middle of the second adjusting block.

[0010] Preferably, a knife groove is provided between adjacent wedge-shaped blocks, and the knife groove is a vertical groove, an inclined groove or an "eight" groove;

[0011] A third point cutter is arranged in the knife groove.

[0012] Preferably, the extension line of the first dot cutter passes through the center of the dot cut roller, and the extension line of the second dot cutter passes through the center of the dot cut roller.

[0013] Preferably, the adjustment assembly comprises a first vertical panel wall, a second vertical panel wall, a height adjustment assembly and a horizontal adjustment assembly;

[0014] The two ends of the spot cutting roller are rotatably arranged on the first vertical board wall and the second vertical board wall respectively;

[0015] Both ends of the support roller are rotatably disposed on the first vertical board wall and the second vertical board wall respectively.

[0016] Preferably, the height adjustment assembly includes a first rotating shaft and a first bevel gear and a second bevel gear provided at both ends of the first rotating shaft;

[0017] A first vertical slide rail and a first mounting seat are arranged on the inner side of the first vertical board wall. A first vertical screw rod is arranged on the first mounting seat. A third bevel gear is arranged at the bottom of the first vertical screw rod. The third bevel gear engages with the first bevel gear.

[0018] Preferably, a second vertical slide rail and a second mounting seat are provided on the inner side of the second vertical panel wall, a second vertical screw rod is provided on the second mounting seat, and a fourth bevel gear is provided at the bottom of the second vertical screw rod, and the fourth bevel gear engages with the second bevel gear;

[0019] Both ends of the support roller are rotatably disposed on the first mounting seat and the second mounting seat respectively.

[0020] Preferably, a plurality of waist holes are provided in the middle of the wedge-shaped block.

[0021] Preferably, the horizontal adjustment assembly includes a horizontal screw rod, a first vertical slot, a second vertical slot, a third vertical slot, a fourth vertical slot and a screw rod seat, wherein a first horizontal axis is respectively provided in the first vertical slot and the second vertical slot, and a second horizontal axis is respectively provided in the third vertical slot and the fourth vertical slot;

[0022] The two ends of the first vertical panel wall are respectively mounted on the first vertical slot and the second vertical slot via a first horizontal axis;

[0023] Two ends of the second vertical panel wall are respectively installed on the third vertical slot and the fourth vertical slot through a second horizontal axis.

[0024] Preferably, the screw seat is mounted on the outer wall of the first vertical slot and the second vertical slot;

[0025] The width of the first vertical groove and the second vertical groove are respectively greater than the thickness of the first vertical board wall;

[0026] The widths of the third vertical groove and the fourth vertical groove are respectively greater than the thickness of the second vertical board wall.

[0027] Based on the same inventive principle, in order to achieve the above-mentioned second invention purpose, the present invention provides a bag forming machine, including the bag forming point cutting device described in the first invention.

[0028] Compared with the prior art, the beneficial effects of the present invention are:

[0029] The first adjusting block of the utility model has a first step at the bottom and a first top screw is installed in the middle thereof. When the height of the first point cutter needs to be adjusted, it can be adjusted by screwing the first top screw. Similarly, the second adjusting block has a second step at the bottom and a second top screw is installed in the middle thereof. When the height of the second point cutter needs to be adjusted, it can be adjusted by screwing the second top screw. Therefore, both the first point cutter and the second point cutter of the utility model are easy to adjust. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 It is a schematic diagram of the three-dimensional structure of the bag forming and cutting device of the present invention.

[0031] Figure 2 It is a schematic diagram of the three-dimensional structure of the bag forming and cutting device of the present invention.

[0032] Figure 3 It is a three-dimensional structural diagram of the bag forming and cutting device of the utility model.

[0033] Figure 4 It is a schematic diagram of the exploded structure of the bag forming and cutting device of the utility model.

[0034] Figure 5 For this utility model Figure 4 A is an enlarged structural diagram of FIG.

[0035] Figure 6 It is a partially enlarged schematic diagram of the spot cutting roller of the utility model.

[0036] Figure 7 This utility model Figure 6 Schematic diagram of the cross-section at BB.

[0037] Figure 8 It is a point tangent line schematic diagram of the utility model.

[0038] Figure 9 This is a point tangent line schematic diagram of the present invention.

[0039] Figure 10 This is a point tangent line schematic diagram of the present invention.

[0040] Among them, 1. point cutting roller; 2. support roller; 3. adjustment assembly; 31. first vertical board wall; 311. first vertical slide rail; 312. first mounting seat; 313. first vertical screw rod; 314. third bevel gear; 32. second vertical board wall; 321. second vertical slide rail; 322. second mounting seat; 323. second vertical screw rod; 324. fourth bevel gear; 33. height adjustment assembly; 331. first rotating shaft; 332. first bevel gear; 333. second bevel gear; 34. horizontal adjustment assembly; 341. horizontal screw rod; 342. first vertical slot; 3421 , first horizontal axis; 343, second vertical slot; 344, third vertical slot; 3441, second horizontal axis; 345, fourth vertical slot; 346, screw seat; 4, wedge-shaped slot; 5, wedge-shaped block; 51, first inclined surface; 52, second inclined surface; 53, first hollow portion; 54, first adjusting block; 541, first step; 542, first top screw; 55, second hollow portion; 56, second adjusting block; 561, second step; 562, second top screw; 57, knife groove; 571, third point cutter; 58, waist hole; 6, first point cutter; 7, second point cutter. DETAILED DESCRIPTION

[0041] The present invention is described in detail below with reference to the various embodiments shown in the accompanying drawings. However, it should be noted that these embodiments are not limitations of the present invention, and any equivalent transformations or substitutions in functions, methods, or structures made by ordinary technicians in this field based on these embodiments are all within the scope of protection of the present invention.

[0042] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as a limitation on the present invention.

[0043] The specific implementation process of the present invention is described below through multiple embodiments.

[0044] Example 1

[0045] See also Figures 1 to 10 This embodiment discloses a specific implementation of a bag forming point cutting device.

[0046] See also Figures 1 to 10The bag forming spot cutting device includes a spot cutting roller 1, a supporting roller 2 and an adjusting component 3. A wedge groove 4 is provided along the axial direction of the spot cutting roller 1, and a plurality of wedge blocks 5 are provided in the wedge groove 4. A plurality of waist holes 58 are provided in the middle of the wedge block 5. Bolts pass through the waist holes and fasten the wedge block 5 to the wedge groove 4; a first inclined surface 51 and a second inclined surface 52 are provided on both sides of the wedge block 5, a first transverse knife groove 41 is provided between the first inclined surface 51 and the wedge groove 4, a first spot cutter 6 is installed in the first transverse knife groove 41, a second transverse knife groove 42 is provided between the second inclined surface 52 and the wedge groove 4, and a second spot cutter 7 is installed in the second transverse knife groove 42 ; A number of first hollow portions 53 are provided adjacent to the first inclined surface 51, and a first adjusting block 54 is installed in the first hollow portion 53. A first step 541 is provided at the bottom of the first adjusting block 54, and the first step 541 supports the bottom of the first point cutter 6. A first top screw 542 is installed in the middle of the first adjusting block 54; a number of second hollow portions 55 are provided adjacent to the second inclined surface 52, and a second adjusting block 56 is installed in the second hollow portion 55. A second step 561 is provided at the bottom of the second adjusting block 56, and the second step 561 supports the bottom of the second point cutter 7. A second top screw 562 is installed in the middle of the second adjusting block 56.

[0047] Specifically, the wedge groove 4 is arranged along the axial direction of the point cutting roller 1, and a plurality of wedge blocks 5 are installed in the wedge groove 4. The widths of the wedge blocks 5 can be the same or different. According to the actual required length and shape of the point tangent line, a plurality of first point cutters 6 and a plurality of second point cutters 7 need to be installed; a knife groove 57 is set between adjacent wedge blocks 5, and the knife groove 57 is a vertical groove, a bevel groove or an "eight" groove. A third point cutter 571 is set in the knife groove 57, and through the cooperation of the first point cutter 6, the second point cutter 7 and the third point cutter 571; when the knife groove 57 is a vertical groove, the third point cutter 571 is perpendicular to the first point cutter 6 and the second point cutter 7, forming Figure 8 When the sipe 57 is a bevel groove, the third point cutter 571 and the first point cutter 6 and the second point cutter 7 respectively have a non-90 ° angle, forming a Figure 9 When the knife groove 57 is an "eight" groove, the third point cutter 571 is "eight" shaped, forming Figure 10 Tangent line at the point shown.

[0048] See also Figure 7The extension line of the first dot cutter 6 passes through the center of the dot cutting roller 1, and the extension line of the second dot cutter 7 passes through the center of the dot cutting roller 1, that is, the extension surface of the first dot cutter 6 and the extension surface of the second dot cutter 7 are compared with the center of the dot cutting roller 1. When the first dot cutter 6 and the second dot cutter 7 are cutting the paper surface, their blades are perpendicular to the paper surface, which makes it easier to form a dot tangent line. Moreover, due to the vertical dot cutting, the force direction of the blade is aligned with the center of the dot cutting roller, which greatly reduces the wear of the blade and makes the horizontal knife less likely to be damaged.

[0049] See also Figures 1 to 7 When the height of one of the first point cutters 6 or one of the second point cutters 7 is adjusted, the top screw installed in the corresponding hollow portion can be adjusted; the first adjusting block 54 has a first step 541 at the bottom and a first top screw 542 is installed in the middle thereof. When the height of the first point cutter 6 needs to be adjusted, it can be adjusted by screwing the first top screw 542. The first top screw 542 adjusts the height position of the first adjusting block 54 according to the screw principle, thereby adjusting the height of the first point cutter 6 through the first step cut 541, which is convenient to adjust and has high precision; similarly, the second adjusting block 56 has a second step 561 at the bottom and a second top screw 562 is installed in the middle thereof. When the height of the second point cutter 7 needs to be adjusted, it can be adjusted by screwing the second top screw 562. The second top screw 562 adjusts the height position of the second adjusting block 56 according to the screw principle, thereby adjusting the height of the second point cutter 7 through the second step 561, which is convenient to adjust and has high precision.

[0050] See also Figures 1 to 7The adjustment component 3 includes a first vertical board wall 31, a second vertical board wall 32, a height adjustment component 33 and a horizontal adjustment component 34; the two ends of the cutting roller 1 are respectively rotatably set on the first vertical board wall 31 and the second vertical board wall 32; the two ends of the supporting roller 2 are respectively rotatably set on the first vertical board wall 31 and the second vertical board wall 32. In order to facilitate the adjustment of the height of the support roller 2, the height adjustment assembly 33 includes a first rotating shaft 331 and a first bevel gear 332 and a second bevel gear 333 arranged at both ends of the first rotating shaft 331; a first vertical slide rail 311 and a first mounting seat 312 are arranged on the inner side of the first vertical board wall 31, a first vertical screw rod 313 is arranged on the first mounting seat 312, a third bevel gear 314 is arranged at the bottom of the first vertical screw rod 313, and the third bevel gear 314 engages with the first bevel gear 332; a second vertical slide rail 321 and a second mounting seat 322 are arranged on the inner side of the second vertical board wall 32, a second vertical screw rod 323 is arranged on the second mounting seat 322, A fourth bevel tooth 324 is provided at the bottom of the second vertical screw rod 323, and the fourth bevel tooth 324 engages with the second bevel tooth 333; the two ends of the support roller 2 are rotatably provided on the first mounting seat 312 and the second mounting seat 322 respectively. When it is necessary to adjust the distance between the support roller 2 and the spot cutting roller 1, the first rotating shaft 331 is screwed, and when the third bevel tooth 314 engages with the first bevel tooth 332 and the fourth bevel tooth 324 engages with the second bevel tooth 333, the first vertical screw rod 313 and the second vertical screw rod 323 rotate at the same time, so that the first mounting seat 312 and the second mounting seat 322 are raised and lowered synchronously, thereby realizing synchronous adjustment of the height of the two ends of the support roller 2.

[0051] See also Figures 1 to 7In order to facilitate the synchronous adjustment of the horizontal positions of the cutting roller 1 and the supporting roller 2, the horizontal adjustment component 34 includes a horizontal screw rod 341, a first vertical slot 342, a second vertical slot 343, a third vertical slot 344, a fourth vertical slot 345 and a screw rod seat 346. A first horizontal axis 3421 is respectively provided in the first vertical slot 342 and the second vertical slot 343, and the first vertical plate wall 31 can move horizontally along the first horizontal axis 3421. A second horizontal axis 3441 is respectively provided in the third vertical slot 344 and the fourth vertical slot 345, and the second vertical plate wall 32 can move horizontally along the second horizontal axis The shaft 3441 moves horizontally; the two ends of the first vertical plate wall 31 are respectively installed in the first vertical groove 342 and the second vertical groove 343 through the first horizontal shaft 3421; the two ends of the second vertical plate wall 32 are respectively installed in the third vertical groove 344 and the fourth vertical groove 345 through the second horizontal shaft 3441; the screw seat 346 is installed on the outer wall of the first vertical groove 342 and the second vertical groove 343, and the fulcrum of the screw seat 346 is the first vertical groove 342 and the second vertical groove 343; the width of the first vertical groove 342 and the second vertical groove 343 is larger than the width of the The thickness of the first vertical board wall 31; the widths of the third vertical groove 344 and the fourth vertical groove 345 are respectively greater than the thickness of the second vertical board wall 32; the spot cutting roller 1 and the support roller 2 are installed between the first vertical board wall 31 and the second vertical board wall 32 in an up-down arrangement. When the horizontal positions of the spot cutting roller 1 and the support roller 2 need to be adjusted synchronously, the horizontal screw rod 341 is screwed, and the horizontal screw rod 341 drives the first vertical board wall 31 to move with the screw rod seat 346 as the fulcrum, and then drives the spot cutting roller 1, the support roller 2 and the second vertical board wall 32 to move synchronously; the spot cutting roller 1, the support roller The advantage of synchronous movement is that, without changing the paper bag model, that is, without changing the shape of the point tangent line, the position of the point cut mark of the point cutting roller 1 on the support roller 2 will not change; if the horizontal position of the point cutting roller 1 is simply changed, and the support roller 2 does not follow, each time the horizontal position of the point cutting roller 1 is changed, a point cut mark will be formed on the surface of the support roller 2, which will greatly reduce the service life of the support roller 2. Through the design of this embodiment, the synchronous movement of the point cutting roller 1 and the support roller 2 can be achieved, thereby reducing the point cut marks on the surface of the support roller 2, thereby increasing the service life of the support roller 2.

[0052] Example 2

[0053] This embodiment discloses a specific implementation of a bag forming machine.

[0054] The bag forming machine includes the bag forming point cutting device described in Example 1, which realizes the formation of a point tangent line at the opening of the bag, providing a basis for forming a tongue.

[0055] The bag forming machine disclosed in this embodiment has the same technical solutions as those in Example 1. Please refer to the description in Example 1 and will not be repeated here.

Claims

1. Bag forming point cutting device, characterized in that, It includes a spot cutting roller, a support roller and an adjustment component, a wedge-shaped groove is provided along the axial direction of the spot cutting roller, and a plurality of wedge-shaped blocks are provided in the wedge-shaped groove; A first inclined surface and a second inclined surface are respectively provided on both sides of the wedge-shaped block, a first transverse knife groove is provided between the first inclined surface and the wedge-shaped groove, a first point cutter is installed in the first transverse knife groove, a second transverse knife groove is provided between the second inclined surface and the wedge-shaped groove, a second point cutter is installed in the second transverse knife groove; A plurality of first hollow portions are provided adjacent to the first inclined surface, a first adjustment block is installed in the first hollow portions, a first step is provided at the bottom of the first adjustment block, the first step supports the bottom of the first point cutter, and a first top screw is installed in the middle of the first adjustment block; A plurality of second hollow portions are arranged adjacent to the second inclined surface, a second adjusting block is installed in the second hollow portion, a second step is arranged at the bottom of the second adjusting block, the second step supports the bottom of the second point cutter, and a second top screw is installed in the middle of the second adjusting block.

2. The bag forming and cutting device according to claim 1, characterized in that: A knife groove is provided between adjacent wedge-shaped blocks, and the knife groove is a vertical groove, an inclined groove or an "eight" groove; A third point cutter is arranged in the knife groove.

3. The bag forming and cutting device according to claim 1, characterized in that: An extension line of the first dot cutter passes through the center of the dot cut roller, and an extension line of the second dot cutter passes through the center of the dot cut roller.

4. The bag forming and cutting device according to any one of claims 1 to 3, characterized in that: The adjustment assembly includes a first vertical panel wall, a second vertical panel wall, a height adjustment assembly, and a horizontal adjustment assembly; The two ends of the spot cutting roller are rotatably arranged on the first vertical board wall and the second vertical board wall respectively; Both ends of the support roller are rotatably disposed on the first vertical board wall and the second vertical board wall respectively.

5. The bag forming and cutting device according to claim 4, characterized in that: The height adjustment assembly includes a first rotating shaft and a first bevel gear and a second bevel gear provided at both ends of the first rotating shaft; A first vertical slide rail and a first mounting seat are arranged on the inner side of the first vertical board wall. A first vertical screw rod is arranged on the first mounting seat. A third bevel gear is arranged at the bottom of the first vertical screw rod. The third bevel gear engages with the first bevel gear.

6. The bag forming and cutting device according to claim 5, characterized in that: A second vertical slide rail and a second mounting seat are provided on the inner side of the second vertical panel wall, a second vertical screw rod is provided on the second mounting seat, and a fourth bevel gear is provided at the bottom of the second vertical screw rod, the fourth bevel gear meshing with the second bevel gear; Both ends of the support roller are rotatably disposed on the first mounting seat and the second mounting seat respectively.

7. The bag forming and cutting device according to claim 4, characterized in that: A plurality of waist holes are arranged in the middle of the wedge-shaped block.

8. The bag forming and cutting device according to claim 4, characterized in that: The horizontal adjustment assembly includes a horizontal screw rod, a first vertical slot, a second vertical slot, a third vertical slot, a fourth vertical slot and a screw rod seat, wherein a first horizontal axis is respectively provided in the first vertical slot and the second vertical slot, and a second horizontal axis is respectively provided in the third vertical slot and the fourth vertical slot; The two ends of the first vertical panel wall are respectively mounted on the first vertical slot and the second vertical slot via a first horizontal axis; Two ends of the second vertical panel wall are respectively installed on the third vertical slot and the fourth vertical slot through a second horizontal axis.

9. The bag forming and cutting device according to claim 8, characterized in that: The screw seat is installed on the outer walls of the first vertical slot and the second vertical slot; The width of the first vertical groove and the second vertical groove are respectively greater than the thickness of the first vertical board wall; The widths of the third vertical groove and the fourth vertical groove are respectively greater than the thickness of the second vertical board wall.

10. Bag forming machine, characterized in that, The invention comprises the bag forming and cutting device according to any one of claims 1 to 9.

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