A shuttering blade replacement structure

Abstract

The utility model provides a kind of replace structure of film cutting knife, including mounting seat, the sliding slot is opened in mounting seat inner wall, the slot is opened in mounting seat inner wall between two the sliding slot, slidingly connected with slide base in the sliding slot, the slide base one side is equipped with several let go of hole, the slide base top end is fixedly connected with the link frame, the link frame is slidably connected with the plug-in block, the plug-in block with the let go of hole between it is slidably connected, compared with prior art, the utility model has the beneficial effects as follows: by pull plate, link frame and first return spring will drive plug-in block to separate from slot, then pull slide base to make it along sliding slot sliding can be replaced to the film cutting knife in the knife rest, the whole process only needs to pull pull plate while pulling out slide base to change knife, not only improve the efficiency of replacement, and because hand is always in the handle part of film cutting knife when changing knife, greatly reduce the probability of hand being cut by film cutting knife.

Description

Technical Field

[0001] This utility model relates to a membrane cutting knife replacement structure, belonging to the field of membrane cutting knives. Background Technology

[0002] A film cutter is a tool specifically designed for cutting thin materials such as film, tape, or paper. It is typically mounted on a film cutting machine. In practice, when the film cutter becomes dull, it needs to be removed and replaced.

[0003] In existing technologies, some film-cutting knives require aligning the fixing holes on both sides of the knife with the fixing blocks before replacement. Then, turning the knob causes the rotating shaft to rotate within the knife holder, which in turn drives the two fixing blocks to slide towards each other through the threaded sleeve until the fixing blocks are inserted into the fixing holes, allowing the film-cutting knife to be replaced. However, the threaded drive is relatively slow, causing the fixing blocks to take a long time to be fully inserted into the fixing holes. Furthermore, during this process, the bottom of the film-cutting knife needs to be supported by hand the entire time to align the fixing holes with the fixing blocks. This not only reduces the efficiency of knife replacement but also makes it easy to cut the hand as the blade of the film-cutting knife faces downwards. Utility Model Content

[0004] To address the shortcomings of existing technologies, the purpose of this utility model is to provide a film-cutting knife replacement structure. This solves the problem that some film-cutting knife replacement structures mentioned in the background art require a long time to fully insert the fixing block into the fixing hole due to the slow threaded drive. Furthermore, during this process, in order to align the fixing hole with the fixing block, the bottom of the film-cutting knife needs to be supported by hand the entire time, which not only reduces the efficiency of knife replacement but also makes it easy to cut the hand when the blade of the film-cutting knife is facing downwards.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a film-cutting knife replacement structure includes a mounting base, an inner wall of which has a sliding groove, and a slot between two of the sliding grooves. A slide block is slidably connected within the sliding groove, and a plurality of clearance holes are provided on one side of the slide block. A connecting frame is fixedly connected to the top of the slide block, and an insert block is slidably connected within the connecting frame. The insert block is slidably connected to the clearance holes, and a pull plate is fixedly connected to one end of the insert block extending out of the clearance holes. A first return spring is sleeved on the surface of the insert block, and a knife holder is provided at the top of the slide block, with a film-cutting knife disposed within the knife holder.

[0006] Furthermore, a rotating rod is rotatably connected to the inner wall of the mounting base, and several transmission plates are fixedly connected to the surface of the rotating rod. The surface of the transmission plate has a transmission hole, which is strip-shaped. A transmission rod is rotatably connected inside the transmission hole. The transmission rod is slidably connected to the mounting base. A pressure plate is fixedly connected to the bottom end of the transmission rod. Several guide rods are fixedly connected to the top end of the slide. The tool holder is slidably connected to the guide rods. A second return spring is sleeved on the surface of the guide rod below the tool holder.

[0007] Furthermore, a positioning groove is provided inside the blade holder. The positioning groove is T-shaped, and the top surface of the cutting blade is higher than the top surface of the positioning groove.

[0008] Furthermore, the size of the pull plate is larger than the size of the clearance hole, and the surface of the pull plate is provided with a pull hole.

[0009] Furthermore, a handle groove is provided on one side of the slide, and the bottom surface of the handle groove is higher than the top surface of the pull hole.

[0010] Furthermore, the bottom of the insert is trapezoidal, and the top of the insert is L-shaped.

[0011] Furthermore, a limiting plate is fixedly connected to the surface of the transmission rod above the pressure plate, and the limiting plate is rectangular.

[0012] The beneficial effects of this utility model are as follows: by pulling the plate, connecting frame and first return spring, the insert block is disengaged from the slot, and then the slide block is pulled to slide along the slide groove, so that the film-cutting knife in the knife holder can be replaced. The whole process only requires pulling the plate and pulling out the slide block to replace the knife. This not only improves the efficiency of replacement, but also greatly reduces the probability of the hand being cut by the film-cutting knife because the hand is always in the handle of the film-cutting knife when replacing the knife.

[0013] Due to the action of the second return spring, the cutting blade is retracted into the mounting base when not in use. When the external drive mechanism moves the cutting blade installed inside the mounting base toward the object to be cut, the pressure plate will first contact and hold the object. In conjunction with the transmission rod, transmission hole, rotating rod, transmission plate, blade holder, and guide rod, the cutting blade can be extended from the mounting base. This not only prevents personnel from being injured by accidentally touching the cutting blade when not in use, reducing safety hazards, but also reduces the contact between the cutting blade and external dust or moisture when not in use, reducing the probability of rust and extending the service life of the cutting blade. Attached Figure Description

[0014] Other features, objects, and advantages of this invention will become more apparent from the following detailed description of non-limiting embodiments with reference to the accompanying drawings:

[0015] Figure 1 This is a schematic diagram of the overall structure of a membrane cutting blade replacement structure according to the present invention;

[0016] Figure 2 This is a cross-sectional view of the mounting base for a membrane cutting blade replacement structure according to this utility model.

[0017] Figure 3 This is a schematic diagram of the mounting base structure for a membrane cutting blade replacement structure according to the present invention;

[0018] Figure 4 This is a schematic diagram of the slide structure of a membrane cutting blade replacement structure according to the present invention;

[0019] Figure 5 This is a schematic diagram of the insert structure of a membrane cutting blade replacement structure according to the present invention;

[0020] In the diagram: 1. Mounting base; 101. Slide groove; 102. Slot; 103. Rotating rod; 104. Transmission plate; 1041. Transmission hole; 105. Transmission rod; 106. Pressure plate; 107. Limiting plate; 2. Slide block; 201. Clearance hole; 202. Connecting bracket; 203. Insert block; 204. Pull plate; 2041. Pull hole; 205. First return spring; 206. Knife holder; 2061. Positioning groove; 207. Guide rod; 208. Second return spring; 209. Handle groove; 3. Film cutting knife. Detailed Implementation

[0021] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0022] Please see Figures 1 to 5 This utility model provides a technical solution: a film-cutting knife replacement structure, including a mounting base 1, a sliding groove 101 is provided on the inner wall of the mounting base 1, a slot 102 is provided on the inner wall of the mounting base 1 between two sliding grooves 101, a sliding block 2 is slidably connected in the sliding groove 101, a plurality of clearance holes 201 are provided on one side of the sliding block 2, a connecting frame 202 is fixedly connected to the top of the sliding block 2, an insert 203 is slidably connected in the connecting frame 202, the insert 203 is slidably connected to the clearance holes 201, a pull plate 204 is fixedly connected to one end of the insert 203 extending out of the clearance hole 201, a first return spring 205 is sleeved on the surface of the insert 203, a knife holder 206 is provided at the top of the sliding block 2, and a film-cutting knife 3 is provided in the knife holder 206.

[0023] The pull plate 204, connecting bracket 202 and first return spring 205 drive the insert block 203 to disengage from the slot 102, and then pull the slide block 2 to slide along the slide groove 101, so that the film-cutting knife 3 placed in the knife holder 206 can be replaced. The whole process only requires pulling the pull plate 204 and pulling out the slide block 2 to replace the knife. This not only improves the efficiency of replacement, but also greatly reduces the probability of the hand being cut by the film-cutting knife 3 because the hand is always in the handle part of the film-cutting knife 3 when replacing the knife.

[0024] Furthermore, the bottom of the insert 203 is trapezoidal, and the top of the insert 203 is L-shaped.

[0025] The bottom of the insert 203 is trapezoidal, which allows it to retract above the slide 2 after contacting the inner wall of the mounting base 1, thereby preventing the insert 203 from obstructing the slide 2 from sliding into the mounting base 1.

[0026] Furthermore, a positioning groove 2061 is provided inside the blade holder 206. The positioning groove 2061 is T-shaped, and the top surface of the cutting blade 3 is higher than the top surface of the positioning groove 2061.

[0027] The positioning groove 2061 can limit the cutting blade 3, and the top surface of the cutting blade 3 is higher than the top surface of the positioning groove 2061, which makes it easier to pull the cutting blade 3 out of the positioning groove 2061.

[0028] Furthermore, the size of the pull plate 204 is larger than the size of the clearance hole 201, the surface of the pull plate 204 is provided with a pull hole 2041, and the side of the slide 2 is provided with a handle groove 209, the bottom surface of the handle groove 209 is higher than the top surface of the pull hole 2041.

[0029] The size of the pull plate 204 is larger than the size of the clearance hole 201, which can block the clearance hole 201 and prevent dust and other objects from entering the mounting base 1. The pull plate 204 is easy to pull through the pull hole 2041, and the slide 2 is easy to pull through the handle groove 209.

[0030] Please see Figures 2 to 4 This utility model provides a technical solution: a rotating rod 103 is rotatably connected to the inner wall of the mounting base 1, and several transmission plates 104 are fixedly connected to the surface of the rotating rod 103. A transmission hole 1041 is opened on the surface of the transmission plate 104. The transmission hole 1041 is strip-shaped. A transmission rod 105 is rotatably connected inside the transmission hole 1041. The transmission rod 105 is slidably connected to the mounting base 1. A pressure plate 106 is fixedly connected to the bottom end of the transmission rod 105. Several guide rods 207 are fixedly connected to the top end of the slide block 2. The tool holder 206 is slidably connected to the guide rods 207. A second return spring 208 is sleeved on the surface of the guide rod 207 below the tool holder 206.

[0031] Due to the action of the second return spring 208, the cutting blade 3 is stored in the mounting base 1 when not in operation. When the external drive mechanism drives the cutting blade 3 installed inside the mounting base 1 to move towards the object to be cut, the pressure plate 106 will first contact and hold the object. With the help of the transmission rod 105, transmission hole 1041, rotating rod 103, transmission plate 104, blade holder 206 and guide rod 207, the cutting blade 3 can be extended from the mounting base 1. This not only prevents personnel from being injured by accidentally touching the cutting blade 3 when not in operation, reducing safety hazards, but also reduces the contact between the cutting blade 3 and external dust or moisture when not in operation, reducing the probability of the cutting blade 3 rusting and helping to extend the service life of the cutting blade 3.

[0032] A limiting plate 107 is fixedly connected to the surface of the transmission rod 105 above the pressure plate 106. The limiting plate 107 is rectangular.

[0033] The limiting plate 107 can limit the range of movement of the transmission rod 105 and prevent the transmission rod 105 from extending too far out of the mounting base 1.

[0034] Detailed implementation: Pulling the pull plate 204 upward will cause the plug 203 connected to it to slide along the surface of the connecting frame 202 and squeeze the first return spring 205. As the plug 203 moves, its bottom end will disengage from the slot 102 opened in the inner wall of the mounting base 1. Then, pull the slide 2 away from the mounting base 1 so that it slides along the slide groove 101 opened in the inner wall of the mounting base 1. After the slide 2 is away from the mounting base 1, the film-cutting knife 3 can be pulled out to replace the film-cutting knife 3 placed in the knife holder 206. The whole process only requires pulling out the slide 2 while pulling the pull plate 204 to replace the knife. This not only improves the efficiency of replacement, but also greatly reduces the probability of the hand being cut by the film-cutting knife 3 because the hand is always in the handle part of the film-cutting knife 3 when replacing the knife.

[0035] Due to the action of the second return spring 208, the cutting blade 3 is stored in the mounting base 1 when not in operation. When the external drive mechanism moves the cutting blade 3 installed inside the mounting base 1 toward the object to be cut, the pressure plate 106 will first contact and hold the object. As the mounting base 1 continues to move, the pressure plate 106 will drive the rotating rod 103 to rotate through the transmission rod 105 and the transmission hole 1041, thereby driving the transmission plate 104 to rotate and press the blade holder 206. Then, the blade holder 206 will slide down along the guide rod 207 and press the second return spring 208, thus allowing the cutting blade 3 to extend out of the mounting base 1. This not only prevents personnel from being injured by accidentally touching the cutting blade 3 when not in operation, reducing safety hazards, but also reduces the contact between the cutting blade 3 and external dust or moisture when not in operation, reducing the probability of the cutting blade 3 rusting and helping to extend the service life of the cutting blade 3.

[0036] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A membrane cutting blade replacement structure, characterized in that: The device includes a mounting base (1), the inner wall of which is provided with a sliding groove (101), and a slot (102) is provided between the two sliding grooves (101) on the inner wall of the mounting base (1). A slide block (2) is slidably connected in the sliding groove (101). A plurality of clearance holes (201) are provided on one side of the slide block (2). A connecting frame (202) is fixedly connected to the top of the slide block (2). A plug (203) is slidably connected in the connecting frame (202). The plug (203) is slidably connected to the clearance hole (201). A pull plate (204) is fixedly connected to one end of the plug (203) extending out of the clearance hole (201). A first reset spring (205) is sleeved on the surface of the plug (203). A knife holder (206) is provided at the top of the slide block (2). A film-cutting knife (3) is provided in the knife holder (206).

2. The membrane cutting blade replacement structure according to claim 1, characterized in that: The inner wall of the mounting base (1) is rotatably connected to a rotating rod (103). Several transmission plates (104) are fixedly connected to the surface of the rotating rod (103). A transmission hole (1041) is opened on the surface of the transmission plate (104). The transmission hole (1041) is strip-shaped. A transmission rod (105) is rotatably connected inside the transmission hole (1041). The transmission rod (105) is slidably connected to the mounting base (1). A pressure plate (106) is fixedly connected to the bottom end of the transmission rod (105). Several guide rods (207) are fixedly connected to the top end of the slide (2). The tool holder (206) is slidably connected to the guide rods (207). A second return spring (208) is sleeved on the surface of the guide rod (207) below the tool holder (206).

3. The membrane cutting blade replacement structure according to claim 1, characterized in that: The blade holder (206) has a positioning groove (2061) inside. The positioning groove (2061) is T-shaped, and the top surface of the cutting blade (3) is higher than the top surface of the positioning groove (2061).

4. The membrane cutting blade replacement structure according to claim 1, characterized in that: The size of the pull plate (204) is larger than the size of the clearance hole (201), and the surface of the pull plate (204) is provided with a pull hole (2041).

5. The membrane cutting blade replacement structure according to claim 4, characterized in that: The slide (2) has a handle groove (209) on one side, and the bottom surface of the handle groove (209) is higher than the top surface of the pull hole (2041).

6. The membrane cutting blade replacement structure according to claim 1, characterized in that: The bottom of the insert (203) is trapezoidal, and the top of the insert (203) is L-shaped.

7. The membrane cutting blade replacement structure according to claim 2, characterized in that: The transmission rod (105) is fixedly connected to a limiting plate (107) above the pressure plate (106), and the limiting plate (107) is rectangular.

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