A knife holder structure of a pharmaceutical composite bag slitting machine

Abstract

The utility model discloses a kind of knife rest structures of medicinal composite bag slitting machine, belong to the field of medicine composite bag processing.The device includes the placing groove being opened in the surface of knife rest, wherein placing groove is set as half open groove, and then it can be slid to take out or place knife shaft from one side of placing groove, sliding connecting tooth is set in the inside of placing groove, and pressing rod is rotatably set on the surface of knife rest, the end of knife shaft is set sliding gear, sliding gear and connecting tooth contact, limit the position of sliding gear, then through pressing rod and placing groove, limit the position of knife shaft, then when installing knife shaft, ensure that sliding gear and connecting tooth contact, rotate pressing rod to specified position, the position of knife shaft can be limited, when knife shaft needs to be taken out subsequently, only need to rotate operating column, make pressing rod slide and separate from placing groove, at this time, knife shaft can be slid to take out, and it is not necessary to change height when using or taking out knife shaft, the requirement to use space is smaller, and only need to rotate operating column during taking out process, it is convenient to operate quickly.

Description

Technical Field

[0001] This utility model relates to the field of pharmaceutical composite bag processing, and in particular to a blade holder structure for a pharmaceutical composite bag slitting machine. Background Technology

[0002] Pharmaceutical composite bags refer to film bags made of materials such as plastic, aluminum foil, and paper through adhesives or extrusion processes. According to the bag making form, they can be divided into three-side seal bags, center seal bags, gusseted bags, stand-up pouches, zipper bags, etc. Pharmaceutical composite bags are generally made by slitting the composite materials with a slitting machine.

[0003] The reference patent title is: A slitting machine blade holder for easy blade replacement (Patent Publication No.: CN217943562U). It comprises two supports spaced apart and a blade shaft positioned between the two supports. Several blades are arranged along the axial direction of the blade shaft. Each of the two supports is equipped with a slide and a lifting drive mechanism to control the up-and-down movement of the slide. The slide has a slot for mounting the shaft rod and a locking component for fixing the shaft rod within the slot. During assembly, the shaft rods at both ends of the blade shaft are engaged in the corresponding slots and locked in place by the locking component. By placing the blade shaft on a slide that can be controlled to move up and down by the lifting drive mechanism, the blade holder can be quickly switched between slitting mode, blade changing mode, and belt threading mode as needed. The locking component allows for quick locking or unlocking of the blade shaft during blade changing mode, facilitating its removal or installation and enabling rapid blade replacement.

[0004] However, the following problems exist when implementing the above technical solutions: During the disassembly of the cutter shaft, the above device requires the entire cutter shaft to be moved upward, causing the slot to exceed the clearance slot area. This imposes certain restrictions on the installation height of the device. It is necessary to ensure that the slide and locking cylinder have enough space to move after installation to avoid impact damage. In addition, during the use of the above device, the locking cylinder and bracket protrude relatively outward, and operators need to pay attention to collisions when using or inspecting the device, which poses a relatively high safety risk.

[0005] Therefore, this utility model proposes a blade holder structure for a pharmaceutical composite bag slitting machine. Utility Model Content

[0006] This utility model provides a blade holder structure for a pharmaceutical composite bag slitting machine, which can solve the problems of existing slitting machines requiring ample space for blade holder placement, vertical movement during disassembly, high space requirements, and increased operational risks due to the protruding support and sliding structure during use.

[0007] A blade holder structure for a pharmaceutical composite bag slitting machine includes a blade holder and a blade shaft. The blade holder is fixedly mounted on the surface of the slitting machine body. A disassembly mechanism is provided between the blade holder and the blade shaft. The disassembly mechanism includes:

[0008] The placement groove is formed on the surface of the tool holder and is a semi-open groove. The placement groove is adapted to the end of the tool shaft. The tool holder is slidably connected with connecting teeth, and the end of the tool shaft is slidably connected with a sliding gear. The sliding gear meshes with the connecting teeth.

[0009] An operating column is rotatably mounted on the side of the tool holder away from the tool shaft. A limit component is provided between the operating column and the tool holder, and the limit component is slidably mounted inside the operating column. A pressing rod is detachably connected to the side of the operating column near the tool shaft, and the pressing rod contacts the end of the tool shaft. A positioning component is provided between the pressing rod and the tool holder.

[0010] Optionally, the positioning component includes a connecting rod slidably disposed inside the pressing rod, the surface of the tool holder is provided with a connecting groove and a guide groove, the ends of the connecting groove and the guide groove are connected, the middle of the guide groove is connected to the placement groove, and the guide groove is perpendicular to the placement groove, the guide groove is adapted to the pressing rod, and the connecting rod is adapted to the connecting groove.

[0011] Optionally, the cutter shaft surface is provided with a movable groove, and the sliding gear surface is fixedly connected with a movable shaft, the movable shaft being adapted to the movable groove.

[0012] Optionally, a main rod is slidably connected inside the tool holder, a cylinder is fixedly connected inside the main rod, a sliding rod is fixedly connected to the end of the piston rod inside the cylinder, the sliding rod is detachably connected to the connecting teeth, and an adjustment component for changing the position of the main rod is provided between the main rod and the operating column.

[0013] Optionally, the adjustment assembly includes an adjustment rod slidably disposed inside the main rod, an adjustment spring fixedly connected between the main rod and the adjustment rod, an arc-shaped groove on the surface of the operating column, an extension rod fixedly connected to the end of the adjustment rod, a plurality of locking grooves on the surface of the operating column, the plurality of locking grooves communicating with the arc-shaped grooves, and the locking grooves being adapted to the extension rods.

[0014] Optionally, a rectangular rod is fixedly connected to the surface of the sliding rod, and a rectangular groove is formed on the surface of the main rod, with the rectangular rod fitting into the rectangular groove.

[0015] Optionally, an insertion post is fixedly connected to the end of the connecting tooth, and an insertion groove and an annular groove are provided inside the sliding rod. The insertion groove is adapted to the insertion post, and the annular groove is connected to the side of the insertion groove away from the connecting tooth. The annular groove is adapted to the insertion post.

[0016] Optionally, the limiting component includes a rotating rod slidably disposed on the surface of the operating column, and a rotating groove is formed on the surface of the tool holder. The rotating groove has an L-shaped cross-section, and the rotating rod is adapted to the rotating groove.

[0017] Optionally, the surface of the pressing rod is provided with a through groove, and a fixing rod is threadedly connected inside the operating column, the fixing rod being adapted to the through groove.

[0018] Optionally, the fixing rod and the connecting rod are symmetrically arranged relative to the pressing rod, and the pressing rod is provided with a frosted layer on the side near the connecting teeth.

[0019] This utility model provides a blade holder structure for a pharmaceutical composite bag slitting machine, including a placement groove on the surface of the blade holder. The placement groove is a semi-open groove, allowing the blade shaft to be slidably removed or placed from one side. A sliding connecting tooth is provided inside the placement groove, and a pressing rod is rotatably mounted on the surface of the blade holder. A sliding gear is provided at the end of the blade shaft, contacting the connecting tooth to restrict its position. The pressing rod, in contact with the placement groove and the blade shaft, further restricts the position and rotation of the blade shaft. This ensures contact between the sliding gear and the connecting tooth during blade shaft installation. Rotating the pressing rod to a designated position further restricts the blade shaft's position. To remove the blade shaft, simply rotate the operating column to slide the pressing rod out of the placement groove, allowing for easy removal. The blade shaft requires no change in height during use and removal, thus requiring less space and eliminating the need for external structures. The simple operation of rotating the operating column during removal facilitates quick and easy operation. Attached Figure Description

[0020] Figure 1 A schematic diagram of the blade holder structure of a pharmaceutical composite bag slitting machine provided by this utility model;

[0021] Figure 2 A three-dimensional sectional view of the sliding gear provided by this utility model;

[0022] Figure 3 Provided by this utility model Figure 2 Enlarged view of the local structure at point A;

[0023] Figure 4 An exploded perspective view of the disassembly mechanism provided by this utility model;

[0024] Figure 5 Provided by this utility model Figure 4 Enlarged view of the local structure at point B;

[0025] Figure 6 Provided by this utility model Figure 5 Enlarged view of the local structure at point C.

[0026] Explanation of reference numerals in the attached figures:

[0027] 1. Tool holder; 2. Tool shaft; 3. Placement slot; 4. Connecting gear; 5. Sliding gear; 6. Operating column; 7. Pressing rod; 8. Connecting rod; 9. Connecting slot; 10. Guide slot; 11. Insertion slot; 12. Moving slot; 13. Moving shaft; 14. Main rod; 15. Cylinder; 16. Sliding rod; 17. Adjusting rod; 18. Adjusting spring; 19. Extension rod; 20. Locking slot; 21. Rectangular rod; 22. Rectangular slot; 23. Insertion column; 24. Annular slot; 25. Rotating rod; 26. Rotating slot; 27. Fixing rod. Detailed Implementation

[0028] The specific embodiments of this utility model are described in detail below, but it should be understood that the protection scope of this utility model is not limited to the specific embodiments.

[0029] like Figures 1 to 6 As shown in the figure, the blade holder structure of a pharmaceutical composite bag slitting machine provided in this embodiment includes a blade holder 1 and a blade shaft 2. The blade holder 1 is fixedly mounted on the surface of the slitting machine body. A disassembly mechanism is provided between the blade holder 1 and the blade shaft 2. The disassembly mechanism includes:

[0030] The placement groove 3 is formed on the surface of the tool holder 1 and is a semi-open groove. The placement groove 3 is adapted to the end of the tool shaft 2. The tool holder 1 is slidably connected with a connecting tooth 4, and the end of the tool shaft 2 is slidably connected with a sliding gear 5, which meshes with the connecting tooth 4.

[0031] An operating column 6 is rotatably mounted on the side of the tool holder 1 away from the tool shaft 2. A limiting component for restricting the position of the operating column 6 is provided between the operating column 6 and the tool holder 1. The limiting component is slidably mounted inside the operating column 6. A pressing rod 7 is detachably connected to the side of the operating column 6 near the tool shaft 2. The pressing rod 7 contacts the end of the tool shaft 2. A positioning component is provided between the pressing rod 7 and the tool holder 1. The positioning component includes a connecting rod 8 slidably mounted inside the pressing rod 7. A connecting groove 9 and a guide groove 10 are formed on the surface of the tool holder 1. The ends of the connecting groove 9 and the guide groove 10 are connected. The middle part of the guide groove 10 is connected to the placement groove 3 and is perpendicular to the placement groove 3. The guide groove 10 is adapted to the pressing rod 7, and the connecting rod 8 is adapted to the connecting groove 9.

[0032] In summary, the present invention provides a blade holder structure for a pharmaceutical composite bag slitting machine, including a placement groove 3 on the surface of the blade holder 1. The placement groove 3 is a semi-open groove, allowing the blade shaft 2 to be slidably removed or placed from one side of the placement groove 3. A sliding connecting tooth 4 is provided inside the placement groove 3, and a pressing rod 7 is rotatably provided on the surface of the blade holder 1. A sliding gear 5 is provided at the end of the blade shaft 2. The sliding gear 5 contacts the connecting tooth 4, restricting the current position of the sliding gear 5. The pressing rod 7 and the placement groove 3 contact the blade shaft 2, restricting the position of the blade shaft 2 and restricting its rotation. Thus, when the blade shaft 2 is installed, the sliding gear 5 and the connecting tooth 4 are in contact. The pressing rod 7 is then rotated to a designated position to restrict the position of the blade shaft 2. When the blade shaft 2 needs to be removed, only the operating column 6 needs to be rotated to cause the pressing rod 7 to slide away from the placement groove 3, at which point the blade shaft 2 can be slidably removed. The blade shaft 2 does not require any change in height during use and removal, thus requiring less space. There is no extended structure during use, and only the operating column 6 needs to be rotated during removal, facilitating quick operation.

[0033] In some specific implementations, a plurality of cutters are slidably disposed on the surface of the cutter shaft 2, and a fixing post is fixedly connected to the surface of the cutter, and a screw is threadedly connected inside the fixing post; the position of the cutter on the surface of the cutter shaft 2 is restricted by the extrusion of the screw and the cutter shaft 2.

[0034] In some specific implementations, the surface of the cutter shaft 2 is provided with a movable groove 12, and the surface of the sliding gear 5 is fixedly connected with a movable shaft 13, which is adapted to the movable groove 12; the sliding gear 5 can be slid to a designated position of the cutter shaft 2 through the movable groove 12, and the sliding gear 5 can be removed at the same time, so as to avoid the position of the sliding gear 5 affecting the disassembly of the cutter.

[0035] In some specific implementations, a main rod 14 is slidably connected inside the tool holder 1, a cylinder 15 is fixedly connected inside the main rod 14, and a sliding rod 16 is fixedly connected to the end of the piston rod inside the cylinder 15. The sliding rod 16 is detachably connected to the connecting tooth 4. An adjustment component for changing the position of the main rod 14 is provided between the main rod 14 and the operating column 6. The cylinder 15 inside the main rod 14 can push the sliding rod 16 to change its position, thereby changing the position of the connecting tooth 4. The change in the position of the connecting tooth 4 changes the distance between the connecting tooth 4 and the pressing rod 7. Different sizes of tool shafts 2 can be fixed inside the tool holder 1.

[0036] In a further embodiment, the adjustment assembly includes an adjustment rod 17 slidably disposed inside the main rod 14, an adjustment spring 18 fixedly connected between the main rod 14 and the adjustment rod 17, an arc-shaped groove on the surface of the operating column 6, an extension rod 19 fixedly connected to the end of the adjustment rod 17, and a plurality of locking grooves 20 on the surface of the operating column 6, the plurality of locking grooves 20 communicating with the arc-shaped groove, the locking grooves 20 being adapted to the extension rod 19; through the contact between the locking grooves 20 and the extension rod 19, the position of the extension rod 19 on the surface of the operating column 6 can be restricted, and after the adjustment rod 17 slides, the extension rod 19 and the locking grooves 20 disengage, at which point the rotation of the operating column 6 does not affect the position of the connecting teeth 4; after the position of the operating column 6 is fixed, the angle of the connecting teeth 4 relative to the blade holder 1 can be adjusted according to the position of the extension rod 19, thereby changing the contact position between the cutter and the material;

[0037] In a further embodiment, a rectangular rod 21 is fixedly connected to the surface of the sliding rod 16, and a rectangular groove 22 is formed on the surface of the main rod 14. The rectangular rod 21 is adapted to the rectangular groove 22. The rectangular rod 21 and the rectangular groove 22 can prevent the sliding rod 16 from rotating inside the main rod 14, and the rectangular groove 22 can limit the sliding distance of the rectangular rod 21.

[0038] In a further embodiment, an insertion post 23 is fixedly connected to the end of the connecting tooth 4. An insertion groove 11 and an annular groove 24 are provided inside the sliding rod 16. The insertion groove 11 is adapted to the insertion post 23, and the annular groove 24 communicates with the side of the insertion groove 11 away from the connecting tooth 4. The annular groove 24 is adapted to the insertion groove 11. When the insertion post 23 slides into the annular groove 24, the annular groove 24 can restrict the vertical sliding of the insertion post 23. In turn, the position of the connecting tooth 4 relative to the sliding rod 16 can be restricted by rotating after sliding.

[0039] In some specific implementations, the limiting component includes a rotating rod 25 slidably disposed on the surface of the operating column 6, and a rotating groove 26 is formed on the surface of the tool holder 1. The rotating groove 26 has an L-shaped cross-section, and the rotating rod 25 is adapted to the rotating groove 26. The rotating groove 26 restricts the rotation angle of the operating column 6. At the same time, one end of the rotating groove 26 is deeper. After the rotating rod 25 slides and inserts into this end, the entire rotating rod 25 cannot continue to rotate, thereby restricting the rotation of the operating column 6.

[0040] In some specific implementations, the pressing rod 7 is provided with a frosted layer on the side near the connecting tooth 4; a through groove is provided on the surface of the pressing rod 7, and a fixing rod 27 is threadedly connected inside the operating column 6, the fixing rod 27 being adapted to the through groove; the fixing rod 27 and the connecting rod 8 are symmetrically arranged relative to the pressing rod 7.

[0041] The working principle of this utility model:

[0042] When disassembling the cutter shaft 2, first pull the rectangular rod 21 to disengage it from the rectangular groove 22, then pull the rotating rod 25 to disengage it from the end of the rotating groove 26, pull the rotating rod 25 to rotate it, causing the pressing rod 7 to rotate, causing the pressing rod 7 to disengage from the placement groove 3, release the rotating rod 25 and the rectangular rod 21, and slide the cutter shaft 2 out.

[0043] When the size of the cutter shaft 2 is changed, first adjust the size and position of the connecting tooth 4 according to the size of the connecting tooth 4 wheel, replace the connecting tooth 4, rotate the connecting tooth 4 to make the insertion post 23 slide into the insertion groove 11, pull out the connecting tooth 4, insert the replaced connecting tooth 4, then start the cylinder 15 to make the sliding rod 16 slide, and the connecting tooth 4 move. After the position of the connecting tooth 4 is appropriate, the cutter shaft 2 can be installed.

[0044] The above-disclosed embodiments are only a few specific examples of the present utility model. However, the embodiments of the present utility model are not limited thereto. Any changes that can be conceived by those skilled in the art should fall within the protection scope of the present utility model.

Claims

1. A blade holder structure for a pharmaceutical composite bag slitting machine, comprising a blade holder (1) and a blade shaft (2), wherein the blade holder (1) is fixedly mounted on the surface of the slitting machine body, characterized in that, A disassembly mechanism is provided between the tool holder (1) and the tool shaft (2), the disassembly mechanism comprising: Placement groove (3) is formed on the surface of tool holder (1) and is a semi-open groove. Placement groove (3) is adapted to the end of tool shaft (2). Connecting teeth (4) are slidably connected inside tool holder (1). Sliding gear (5) is slidably connected to the end of tool shaft (2). Sliding gear (5) meshes with connecting teeth (4). An operating column (6) is rotatably disposed on the side of the tool holder (1) away from the tool shaft (2). A limit component is provided between the operating column (6) and the tool holder (1). The limit component is slidably disposed inside the operating column (6). A pressing rod (7) is detachably connected to the side of the operating column (6) near the tool shaft (2). The pressing rod (7) contacts the end of the tool shaft (2). A positioning component is provided between the pressing rod (7) and the tool holder (1).

2. The blade holder structure of the pharmaceutical composite bag slitting machine as described in claim 1, characterized in that, The positioning component includes a connecting rod (8) slidably disposed inside the pressing rod (7). The surface of the tool holder (1) is provided with a connecting groove (9) and a guide groove (10). The ends of the connecting groove (9) and the guide groove (10) are connected. The middle part of the guide groove (10) is connected to the placement groove (3), and the guide groove (10) is perpendicular to the placement groove (3). The guide groove (10) is adapted to the pressing rod (7), and the connecting rod (8) is adapted to the connecting groove (9).

3. The blade holder structure of the pharmaceutical composite bag slitting machine as described in claim 1, characterized in that, The cutter shaft (2) has a moving groove (12) on its surface, and the sliding gear (5) has a moving shaft (13) fixedly connected to its surface. The moving shaft (13) is adapted to the moving groove (12).

4. The blade holder structure of a pharmaceutical composite bag slitting machine as described in claim 1, characterized in that, The tool holder (1) is slidably connected to a main rod (14), and a cylinder (15) is fixedly connected inside the main rod (14). A sliding rod (16) is fixedly connected to the end of the piston rod inside the cylinder (15). The sliding rod (16) is detachably connected to the connecting tooth (4). An adjustment component for changing the position of the main rod (14) is provided between the main rod (14) and the operating column (6).

5. The blade holder structure of a pharmaceutical composite bag slitting machine as described in claim 4, characterized in that, The adjustment assembly includes an adjustment rod (17) slidably disposed inside the main rod (14), an adjustment spring (18) fixedly connected between the main rod (14) and the adjustment rod (17), an arc-shaped groove is provided on the surface of the operating column (6), an extension rod (19) is fixedly connected to the end of the adjustment rod (17), a plurality of locking grooves (20) are provided on the surface of the operating column (6), the plurality of locking grooves (20) are connected to the arc-shaped groove, and the locking grooves (20) are adapted to the extension rod (19).

6. The blade holder structure of a pharmaceutical composite bag slitting machine as described in claim 4, characterized in that, A rectangular rod (21) is fixedly connected to the surface of the sliding rod (16), and a rectangular groove (22) is opened on the surface of the main rod (14). The rectangular rod (21) is adapted to the rectangular groove (22).

7. The blade holder structure of a pharmaceutical composite bag slitting machine as described in claim 4, characterized in that, An insertion post (23) is fixedly connected to the end of the connecting tooth (4). An insertion groove (11) and an annular groove (24) are provided inside the sliding rod (16). The insertion groove (11) is adapted to the insertion post (23). The annular groove (24) is connected to the side of the insertion groove (11) away from the connecting tooth (4). The annular groove (24) is adapted to the insertion post (23).

8. The blade holder structure of a pharmaceutical composite bag slitting machine as described in claim 1, characterized in that, The limiting component includes a rotating rod (25) that is slidably disposed on the surface of the operating column (6), and a rotating groove (26) is provided on the surface of the tool holder (1). The cross-section of the rotating groove (26) is L-shaped, and the rotating rod (25) is adapted to the rotating groove (26).

9. The blade holder structure of a pharmaceutical composite bag slitting machine as described in claim 1, characterized in that, The pressing rod (7) has a through groove on its surface, and the operating column (6) is internally threaded with a fixing rod (27), which is adapted to the through groove.

10. The blade holder structure of a pharmaceutical composite bag slitting machine as described in claim 9, characterized in that, The fixing rod (27) and the connecting rod (8) are symmetrically arranged relative to the pressing rod (7), and the pressing rod (7) has a frosted layer on the side near the connecting tooth (4).

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