Cutter mounting structure

Abstract

The utility model provides a cutter mounting structure, which comprises a fixed seat, a connecting plate, a cutter holder, a cutter mounting component, an adjusting plate and an adjusting screw, the fixed seat is sleeved on a transmission shaft, and the connecting plate is connected with the lower end of the fixed seat; the tool apron comprises a first fixing plate, a second fixing plate and two supporting plates, the first fixing plate is connected with the connecting plate through locking screws, and two first screw holes used for being matched with the threaded sections of the adjusting screws are oppositely formed in the left side and the right side of the first fixing plate correspondingly. The cutter mounting assembly comprises a mounting shaft and a mounting plate, and a fishhook-shaped cutter is arranged on the lower side surface of the mounting plate; a limiting groove is formed in the outer circumferential surface of the mounting shaft; an adjusting inclined surface is arranged at the upper end of the adjusting plate; the upper side face of the limiting groove is in blocking connection with the adjusting inclined face. Kidney-shaped holes are oppositely formed in the left side and the right side of the lower end of the adjusting plate, second screw holes are formed in the two supporting plates, and the two second screw holes correspond to the two kidney-shaped holes in a one-to-one mode. The installation position of the fishhook-shaped cutter can be conveniently and flexibly adjusted.

Description

Technical Field

[0001] The utility model belongs to the technical field of cigarette packaging, and particularly relates to a cutter mounting structure. Background Art

[0002] During the packaging process of cigarette products, a layer of biaxially oriented polypropylene film (referred to as BOPP film for short) is wrapped on the surface of the finished cigarette strip to facilitate the moisture retention and aroma preservation of the cigarette pack and improve the appearance quality of the product. To enable consumers in the market to easily open the BOPP film bidirectionally, the shape of the tear line has been changed from a U shape to a fishhook shape, as Figure 1 shown.

[0003] The fishhook-shaped tear line of the BOPP film of the middle carton of the GDX1 / GDX2 packaging machine is formed by the extrusion cutting of a fishhook-shaped cutter and a cutter anvil roll. Since the cutting width between the two side edges of the fishhook-shaped cutter is nearly doubled compared with the original U-shaped cutter, to cut out a uniformly left and right tear line on the arc surface of the same cutter anvil roll, it is necessary to flexibly adjust the installation position of the fishhook-shaped cutter. However, the installation position of the existing fishhook-shaped cutter is fixed and cannot be adjusted, which makes the two side edges of the fishhook-shaped cutter prone to uneven wear, resulting in the phenomenon that the fishhook-shaped tear line is difficult to cut or incompletely cut during the production process, and also results in a short service life of the fishhook-shaped cutter and frequent replacement. Therefore, how to design a cutter mounting structure to flexibly adjust the installation position of the fishhook-shaped cutter has become an urgent technical problem to be solved by those skilled in the art. Summary of the Utility Model

[0004] The purpose of the utility model is to provide a cutter mounting structure to solve the above technical problems in the prior art.

[0005] To achieve the above purpose, the utility model provides the following technical solutions:

[0006] A cutter mounting structure, which comprises a fixed seat, a connecting plate, a tool holder, a cutter mounting assembly, an adjusting plate and an adjusting screw. The fixed seat is used for being sleeved on a transmission shaft, and the connecting plate is connected to the lower end of the fixed seat; the tool holder is arranged below the connecting plate, and the tool holder includes a first fixing plate, a second fixing plate arranged below the first fixing plate and two supporting plates. The left and right sides of the second fixing plate are respectively connected to the first fixing plate through the two supporting plates; the first fixing plate is connected to the connecting plate through a locking screw, and two first screw holes for cooperating with the threaded sections of the adjusting screws are oppositely arranged on both the left side and the right side of the first fixing plate; the cutter mounting assembly includes a mounting shaft and a mounting plate vertically connected to the lower end of the mounting shaft. A fishhook-shaped cutter is arranged on the lower side surface of the mounting plate, and the axis of the mounting shaft is perpendicular to the axis of the transmission shaft; through holes for accommodating the mounting shaft are oppositely arranged at the middle positions of the first fixing plate and the second fixing plate, and a limiting groove is arranged on the outer circumferential surface of the mounting shaft; the upper end of the adjusting plate has an adjusting inclined surface inclined downward to the right, the bottom plane of the limiting groove is used for being attached to the rear side surface of the adjusting plate, and the upper side surface of the limiting groove is used for being abutted against the adjusting inclined surface; waist-shaped holes for allowing the threaded sections of the set screws to pass through are oppositely arranged on both the left and right sides at the lower end of the adjusting plate, and second screw holes for cooperating with the threaded sections of the set screws are arranged on both the supporting plates, and the two second screw holes correspond to the two waist-shaped holes one by one.

[0007] Preferably, the fixed seat includes a first fixing block and a second fixing block. A first arc-shaped hole is arranged on the lower side surface of the first fixing block, and a second arc-shaped hole opposite to the first arc-shaped hole is arranged on the upper side surface of the second fixing block. The first arc-shaped hole and the second arc-shaped hole together form a circular hole adapted to the transmission shaft; the first fixing block and the second fixing block are detachably connected.

[0008] Preferably, both the first fixing block and the second fixing block are rectangular blocks. First through holes for allowing the threaded sections of the fixing screws to pass through are arranged at the four corners of the first fixing block, and third screw holes for cooperating with the threaded sections of the fixing screws are arranged at the four corners of the upper side surface of the second fixing block. Each of the third screw holes corresponds to each of the first through holes one by one.

[0009] Preferably, the connecting plate and the second fixing block are detachably connected.

[0010] Preferably, at the middle positions on the left and right sides of the first fixing plate, second through holes for the threaded sections of the locking screws to pass through are oppositely arranged. Two third through holes corresponding to the two second through holes one by one are arranged on the connecting plate. Two fourth screw holes for cooperating with the threaded sections of the locking screws are arranged on the lower side surface of the second fixing block. The two fourth screw holes correspond to the two third through holes one by one.

[0011] Preferably, the connecting plate and the first fixing plate are both rectangular plates, and the four first screw holes are respectively arranged at the four corners of the first fixing plate.

[0012] The beneficial effects of the present utility model are as follows:

[0013] For the cutter mounting structure of the present utility model, during use, by moving the adjusting plate left and right, different parts on the adjusting inclined surface of the adjusting plate are abutted against the upper side surface of the limiting groove of the mounting shaft, so as to push the mounting shaft to move in the vertical direction, and the fishhook-shaped cutter moves accordingly, thereby realizing the rough adjustment of the mounting position of the fishhook-shaped cutter. Then, the adjusting plate can be locked by using the set screw; then, loosen the locking screw, and flexibly select any one or more of the four adjusting screws to tighten or loosen as needed, driving the corresponding part of the first fixing plate to slightly approach or move away from the connecting plate, realizing the fine adjustment of the mounting position of the fishhook-shaped cutter, so that the position of the fishhook-shaped cutter can better meet the cutting requirements. It can be seen that the present utility model can conveniently and flexibly adjust the mounting position of the fishhook-shaped cutter, so that the two cutting edges of the fishhook-shaped cutter are not prone to uneven wear, and the phenomenon that the fishhook-shaped tear opening cannot be cut off or the cutting is incomplete is not prone to occur during the production process. Description of the Drawings

[0014] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings required to be used in the embodiments, and will further describe the specific embodiments of the present utility model in detail in conjunction with the drawings, where

[0015] Figure 1 is a schematic diagram of an existing fishhook-shaped tear opening;

[0016] Figure 2 is a schematic diagram of the cutter mounting structure provided by the embodiment of the present utility model;

[0017] Figure 3 is another schematic diagram of the cutter mounting structure provided by the embodiment of the present utility model.

[0018] Markings in the drawings:

[0019] 11. First fixing block, 12. Second fixing block, 13. Round hole, 14. Fixing screw

[0020] 15. Fourth screw hole, 16. First through hole; 21. Connecting plate, 22. Third through hole,

[0021] 23. Positioning hole; 31. Adjusting plate, 32. Set screw, 33. Kidney-shaped hole,

[0022] 34. Adjusting inclined plane; 41. First fixing plate, 42. Support plate, 43. Second fixing plate,

[0023] 44. First screw hole, 45. Second through hole, 46. Second screw hole, 47. Perforation,

[0024] 48. Positioning bump; 51. Adjusting screw;

[0025] 61. Mounting shaft, 62. Mounting plate, 63. Bottom plane of the limiting groove;

[0026] 71. Fishhook-shaped cutter; 81. Locking screw; Specific embodiments

[0027] In order to enable those skilled in the art to better understand the technical solution of the present utility model, the following will further introduce this solution in detail in combination with specific embodiments.

[0028] Such as Figure 2 And Figure 3As shown in the figure, an embodiment of the utility model provides a cutter mounting structure, which includes a fixed seat, a connecting plate 21, a tool holder, a cutter mounting assembly, an adjusting plate 31, and an adjusting screw 51. The fixed seat is used for sleeving on a transmission shaft, and the connecting plate 21 is connected to the lower end of the fixed seat; the tool holder is arranged below the connecting plate. The tool holder includes a first fixing plate 41, a second fixing plate 43 arranged below the first fixing plate, and two support plates 42. The left and right sides of the second fixing plate are respectively connected to the first fixing plate through the two support plates; the first fixing plate is connected to the connecting plate through a locking screw 81, and two first screw holes 44 for cooperating with the threaded section of the adjusting screw 51 are oppositely arranged on the left and right sides of the first fixing plate; the cutter mounting assembly includes a mounting shaft 61 and a mounting plate 62 vertically connected to the lower end of the mounting shaft. A fishhook-shaped cutter 71 is arranged on the lower side surface of the mounting plate, and the axis of the mounting shaft is perpendicular to the axis of the transmission shaft; perforations 47 for accommodating the mounting shaft are oppositely arranged at the middle positions of the first fixing plate and the second fixing plate, and a limiting groove is arranged on the outer circumferential surface of the mounting shaft; the upper end of the adjusting plate has an adjusting inclined surface 34 inclined downward to the right, the bottom plane 63 of the limiting groove is used for fitting with the rear side surface of the adjusting plate 31, and the upper side surface of the limiting groove is used for blocking and contacting with the adjusting inclined surface; waist-shaped holes 33 for allowing the threaded section of a set screw to pass through are oppositely arranged on the left and right sides at the lower end of the adjusting plate, and second screw holes 46 for cooperating with the threaded section of the set screw are arranged on both support plates 42, and the two second screw holes correspond to the two waist-shaped holes 33 one by one.

[0029] When the cutter mounting structure provided by the embodiment of the utility model is in use, loosen the set screw, move the adjusting plate 31 left and right, so that different parts on the adjusting inclined surface 34 of the adjusting plate are blocked and contacted with the upper side surface of the limiting groove of the mounting shaft, so as to push the mounting shaft 61 to move in the vertical direction, and the fishhook-shaped cutter moves accordingly, thereby realizing the rough adjustment of the mounting position of the fishhook-shaped cutter 71, and then tighten the set screw to lock the adjusting plate; then, loosen the locking screw, and flexibly select any one or more of the four adjusting screws 51 according to needs to tighten or loosen them, drive the corresponding part of the first fixing plate to slightly approach or move away from the connecting plate, realize the fine adjustment of the mounting position of the fishhook-shaped cutter, so that the position of the fishhook-shaped cutter can better meet the cutting requirements, and then tighten the locking screw. It can be seen that the utility model can conveniently and flexibly adjust the mounting position of the fishhook-shaped cutter, so that the two cutting edges of the fishhook-shaped cutter are not prone to uneven wear, and it is not easy to appear the phenomenon that the fishhook-shaped tear cannot be cut off or the cutting is incomplete during the production process.

[0030] Furthermore, the fixing base includes a first fixing block 11 and a second fixing block 12. A first arc-shaped hole is provided on the lower side surface of the first fixing block, and a second arc-shaped hole opposite to the first arc-shaped hole is provided on the upper side surface of the second fixing block. The first arc-shaped hole and the second arc-shaped hole together form a circular hole 13 adapted to the transmission shaft; the first fixing block and the second fixing block are detachably connected. With this solution, the structure of the fixing base is relatively simple. It can be understood that, as in the prior art, the fixing base is installed on the transmission shaft of the BOPP film conveying roller, which will not be elaborated here.

[0031] Specifically, both the first fixing block 11 and the second fixing block 12 are rectangular blocks. First through holes 16 for the threaded sections of the fixing screws 14 to pass through are provided at the four corners of the first fixing block, and third screw holes for cooperating with the threaded sections of the fixing screws are provided at the four corners of the upper side surface of the second fixing block. Each of the third screw holes corresponds to one of the first through holes. With this solution, the fixing base can be relatively reliably installed on the transmission shaft by using four fixing screws.

[0032] Preferably, the connecting plate 21 and the second fixing block 12 are detachably connected.

[0033] Furthermore, second through holes 45 for the threaded sections of the locking screws 81 to pass through are oppositely provided at the middle positions on the left and right sides of the first fixing plate. Two third through holes 22 corresponding to the two second through holes are provided on the connecting plate, and two fourth screw holes 15 for cooperating with the threaded sections of the locking screws are provided on the lower side surface of the second fixing block. The two fourth screw holes correspond to the two third through holes. With this solution, the first fixing plate, the connecting plate and the second fixing block can be connected together by using two locking screws, making the connection between the three relatively firm and reliable.

[0034] Preferably, among the four first screw holes, two are symmetrically arranged on both sides of the second through hole, that is, first screw holes are symmetrically arranged on both sides of each second through hole.

[0035] It can be understood that the adjusting plate 31 can not only play the role of axial positioning, that is, locking and fixing the mounting base, but also play the role of circumferential positioning by fitting with the bottom plane of the limiting groove to prevent the mounting shaft from rotating. Preferably, the first screw hole is a through hole, and the second screw hole, the third screw hole and the fourth screw hole can all be blind holes.

[0036] Specifically, the connecting plate 21 and the first fixing plate 41 are both rectangular plates, and the four first screw holes 44 are respectively arranged at the four corners of the first fixing plate. With this solution, during installation, by rotating the adjusting screw 51 in the first screw hole, the upper end of the adjusting screw is made to abut against the lower side surface of the connecting plate. When it is necessary to finely adjust the position of a certain part of the fishhook-shaped cutter, tightening or loosening the adjusting screw corresponding to this part can drive the corresponding part of the first fixing plate to approach or move away from the connecting plate, thereby realizing the fine adjustment of the position of this part of the fishhook-shaped cutter, so that a complete fishhook-shaped tear can be cut on the BOPP film during operation. It can be preferred that the lengths and widths of the first fixing block, the second fixing block, the connecting plate, and the first fixing plate are all equal.

[0037] It can be preferred that the upper side surface of the limiting groove is an inclined surface, and its inclination angle is the same as that of the adjusting inclined surface, which is convenient for adjustment; a positioning convex block 48 is arranged at the middle position of the upper side surface of the first fixing plate 41, and positioning holes 23 for cooperating with the positioning convex block 48 are oppositely arranged at the middle positions of the connecting plate 21 and the second fixing block 12, which is convenient for positioning during installation. The positioning convex block 48 covers the upper end of the through hole of the first fixing plate, a compression spring is vertically arranged in the through hole of the first fixing plate, the upper end of the compression spring abuts against the lower side surface of the positioning convex block, and the lower end of the compression spring abuts against the upper end of the mounting shaft 61. In this way, the upper side surface of the limiting groove can be pressed tightly against the adjusting inclined surface through the compression spring, realizing the pressing of the mounting shaft 61 against the adjusting plate 31, and preferably avoiding the up-and-down movement of the mounting shaft and the fishhook-shaped cutter 71.

[0038] It can be understood that during adjustment, according to the specific situation of the cut fishhook-shaped tear, such as the fishhook-shaped tear not being cut off or being incompletely cut, etc., the adjusting plate is moved left and right, and the screwing depth of the corresponding adjusting screw is adjusted by tightening or loosening the adjusting screw at the corresponding position, so as to locally and precisely adjust the edge position of the fishhook-shaped cutter, so that the fishhook-shaped cutter can cut out a complete fishhook-shaped tear after adjustment. When the adjusting plate is moved left and right, the threaded section of the set screw slides left and right in the waist-shaped hole of the adjusting plate. Therefore, at this time, there is no need to disassemble the set screw from the second screw hole; the waist-shaped hole extends in the left-right direction; the upper end of the mounting shaft is located in the through hole of the first fixing plate.

[0039] The utility model can realize the local and precise adjustment of the position of the fishhook-shaped cutter, solve the quality problem of poor cutting of the fishhook-shaped wire drawing tear, ensure that the edge wear of both sides of the fishhook-shaped cutter is uniform, keep the feed in synchronization, avoid the limitations and coarseness of the overall adjustment of the fishhook-shaped cutter, save production costs, reduce the replacement frequency, and reduce the labor intensity of the staff. At the same time, by using four adjusting screws, it is convenient to finely adjust the position of the fishhook-shaped cutter, and it can avoid the fishhook-shaped cutter from being unusable due to uneven wear, and prolong its service life.

[0040] The above are only the preferred embodiments of the present utility model. It should be noted that these embodiments are only used to illustrate the present utility model and not to limit the scope of the present utility model. Moreover, after reading the content of the present utility model, those skilled in the relevant art can make various changes or modifications to the present utility model, and these equivalent forms also fall within the scope defined by the appended claims of this application.

Claims

1. A cutter installation structure, characterized in that: The utility model comprises a fixing seat, a connecting plate, a knife seat, a cutter installation assembly, an adjustment plate, and an adjustment screw, wherein the fixing seat is used to be mounted on the transmission shaft, and the connecting plate is connected to the lower end of the fixing seat; the knife seat is arranged below the connecting plate, and the knife seat comprises a first fixing plate, a second fixing plate arranged below the first fixing plate, and two supporting plates, and the left and right sides of the second fixing plate are respectively connected to the first fixing plate through the two supporting plates; the first fixing plate is connected to the connecting plate through a locking screw, and the left and right sides of the first fixing plate are relatively provided with two first screw holes for matching with the threaded section of the adjusting screw; the cutter installation assembly comprises a mounting shaft, a mounting plate vertically connected to the lower end of the mounting shaft, and the mounting plate The lower side surface is used to set a fishhook-type cutter, and the axis of the mounting shaft is perpendicular to the axis of the transmission shaft; the middle positions of the first fixing plate and the second fixing plate are relatively provided with through holes for accommodating the mounting shaft, and the outer circumferential surface of the mounting shaft is provided with a limiting groove; the upper end of the adjustment plate has an adjustment inclined surface inclined to the lower right, the bottom plane of the limiting groove is used to fit with the rear side surface of the adjustment plate, and the upper side surface of the limiting groove is used to block with the adjustment inclined surface; waist-shaped holes for the threaded section of the set screw to pass through are relatively provided on the left and right sides of the lower end of the adjustment plate, and the two support plates are provided with second screw holes for matching with the threaded section of the set screw, and the two second screw holes correspond to the two waist-shaped holes one by one.

2. The cutter installation structure according to claim 1, characterized in that: The fixing seat includes a first fixing block and a second fixing block, the lower side of the first fixing block is provided with a first arc-shaped hole, the upper side of the second fixing block is provided with a second arc-shaped hole opposite to the first arc-shaped hole, the first arc-shaped hole and the second arc-shaped hole together constitute a circular hole for adapting to the transmission shaft; the first fixing block and the second fixing block are detachably connected.

3. The cutter installation structure according to claim 2, characterized in that: The first fixing block and the second fixing block are both rectangular blocks, and the four corners of the first fixing block are each provided with a first through hole for allowing the threaded segment of the fixing screw to pass through, and the four corners of the upper side of the second fixing block are each provided with a third screw hole for cooperating with the threaded segment of the fixing screw, and each of the third screw holes corresponds one-to-one to each of the first through holes.

4. The cutter installation structure according to claim 2, characterized in that: The connecting plate is detachably connected to the second fixing block.

5. The cutter installation structure according to claim 4, characterized in that: Second through holes for allowing the threaded section of the locking screw to pass through are relatively arranged at the middle positions of the left and right sides of the first fixing plate, two third through holes corresponding to the two second through holes are arranged on the connecting plate, and two fourth screw holes for cooperating with the threaded section of the locking screw are arranged on the lower side of the second fixing block, and the two fourth screw holes correspond to the two third through holes one by one.

6. The cutter installation structure according to any one of claims 3 to 5, characterized in that: The connecting plate and the first fixing plate are both rectangular plates, and the four first screw holes are respectively arranged at four corners of the first fixing plate.

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