Automatic plastic film cutting equipment with cutter convenient to replace

Abstract

The utility model relates to the field of plastic films, and discloses a plastic film automatic cutting device convenient to replace a cutter, which comprises a cutting machine, the cutter is arranged on one side of the cutting machine, the top of the cutter is in contact with the top of the cutting machine, a fixing plate is fixedly arranged on the front side of the cutting machine, and the cutter is arranged on the fixing plate. And a limiting assembly used for limiting the cutting knife is arranged on the front side of the fixing plate, the limiting assembly comprises a pushing plate, an inserting block is fixedly installed on the back face of the pushing plate, an inserting groove is formed in the front side of the cutting knife, the inserting block and the inserting groove are connected in an inserted mode, and a pushing rod is fixedly installed on the front side of the pushing plate. Through mutual cooperation of the pushing plate, the inserting block, the inserting groove and the pushing rod, when the cutting knife needs to be limited, the pushing rod can be pushed to move towards the back face to drive the pushing plate and the inserting block to move towards the back face, the inserting block moves towards the inner side to enter the inserting groove, and therefore the cutting knife can be limited.

Description

Technical Field

[0001] This utility model relates to the field of plastic film, and in particular to an automatic cutting device for plastic film with an easy-to-change cutter. Background Technology

[0002] Films made of polyvinyl chloride, polyethylene, polypropylene, polystyrene and other resins are used for packaging and as a coating layer. Plastic packaging and plastic packaging products are taking up an increasingly large share of the market, especially composite plastic flexible packaging, which has been widely used in the food, pharmaceutical and chemical industries. Among them, food packaging accounts for the largest proportion, such as beverage packaging, frozen food packaging, retortable food packaging, fast food packaging, etc. These products have brought great convenience to people's lives.

[0003] Plastic film is widely used in many fields such as modern packaging, agriculture, and industrial production. For example, in the food packaging industry, plastic film needs to be cut into appropriate sizes to package various foods to ensure their freshness and quality. In agriculture, plastic film is often used to cover greenhouses, providing a suitable growing environment for crops, and the film also needs to be precisely cut according to the size of the greenhouse. In industrial production, the packaging of electronic components and the protection of mechanical parts also rely on the cutting and use of plastic film.

[0004] Currently, in the cutting of plastic film, the cutting edge of the cutter gradually dulls during long-term continuous cutting work, leading to a decline in cutting quality. The cut plastic film may have rough edges, tears, etc., affecting product quality and subsequent use. Moreover, when the cutter wears down to a certain extent, it needs to be replaced in time. However, the cutter replacement involves multiple cumbersome steps, consuming a lot of time and effort. This not only reduces the maintenance efficiency of the equipment but also affects the production schedule to some extent. In addition, frequent cutter replacement increases the labor intensity of operators. Furthermore, due to improper installation, the cutter may become loose or shifted during use, further affecting the cutting quality and equipment stability. Therefore, an automatic plastic film cutting device with an easy-to-replace cutter is proposed to solve the above problems. Utility Model Content

[0005] To overcome the above shortcomings, this utility model provides an automatic cutting device for plastic film with an easy-to-change cutter. It aims to improve the existing technology where the cutter has to go through multiple cumbersome steps, which consumes a lot of time and effort. This not only reduces the maintenance efficiency of the equipment, but also affects the production progress to a certain extent. In addition, frequent cutter replacement also increases the labor intensity of operators. Furthermore, due to improper installation and other reasons, the cutter may become loose or shifted during use, which may further affect the cutting quality and the stability of the equipment.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] An automatic cutting device for plastic film with easy-to-change cutter blades includes a cutting machine, a cutting blade is provided on one side of the cutting machine, the top of the cutting blade is in contact with the top of the cutting machine, a fixing plate is fixedly installed on the front side of the cutting machine, and a limiting component for limiting the cutting blade is provided on the front side of the fixing plate.

[0008] As a further description of the above technical solution:

[0009] The limiting component includes a push plate, a plug is fixedly installed on the back of the push plate, a slot is opened on the front side of the cutting blade, the plug and the slot are inserted into each other, and a push rod is fixedly installed on the front side of the push plate, the front end of the push rod passes through to the front side of the fixed plate and is slidably installed with the fixed plate;

[0010] As a further description of the above technical solution:

[0011] A disc is fixedly installed on the front side of the push rod, and a circular groove is formed on the surface of the disc. An arc-shaped block is provided on the front side of the fixing plate, and a circular block is fixedly installed on the left side of the arc-shaped block. The circular block and the circular groove are inserted into each other.

[0012] As a further description of the above technical solution:

[0013] A fixing block is fixedly installed on the front side of the fixing plate, and a sliding rod is fixedly installed on the right side of the arc-shaped block. The right end of the sliding rod passes through to the right side of the fixing block and is slidably installed with the fixing block.

[0014] As a further description of the above technical solution:

[0015] A first spring is sleeved on the surface of the sliding rod. The left end of the first spring is fixedly installed on the right side of the arc-shaped block, and the right end of the first spring is fixedly installed on the left side of the fixed block.

[0016] As a further description of the above technical solution:

[0017] Limiting rods are fixedly installed on both sides of the front of the push plate. The front end of the limiting rod extends through to the front side of the fixed plate and is slidably installed with the fixed plate. A second spring is sleeved on the surface of the limiting rod. The front end of the second spring is fixedly installed with the back of the fixed plate, and the back of the second spring is fixedly installed with the front side of the push plate.

[0018] As a further description of the above technical solution:

[0019] A stop block is fixedly installed on the front side of the limiting rod, and the back of the stop block is in contact with the front side of the fixing plate.

[0020] This utility model has the following beneficial effects:

[0021] 1. In this utility model, through the cooperation of the push plate, the insert block, the slot and the push rod, when it is necessary to limit the cutting blade, the push rod can be pushed. The push rod moves to the back, causing the push plate and the insert block to move to the back. The insert block moves inward and enters the slot, thereby limiting the cutting blade.

[0022] 2. In this utility model, through the cooperation of the disc, the groove, the arc block and the round block, when the insert block enters the slot, the arc block can be pushed to the left. The arc block moves to the left, which drives the round block to move to the left. The round block moves to the left and enters the groove, thereby limiting the push rod and preventing the insert block from separating from the slot. Attached Figure Description

[0023] Figure 1 This utility model provides a front view structural diagram of the cutting machine;

[0024] Figure 2 A connection diagram of the cutting blade is provided for this utility model;

[0025] Figure 3 Exploded views of the cutting blade and fixing plate are provided for this utility model;

[0026] Figure 4 This utility model Figure 3 Enlarged structural diagram at point A in the middle;

[0027] Figure 5 This utility model Figure 3 Enlarged structural diagram at point B in the middle.

[0028] Legend:

[0029] 1. Cutting machine; 2. Cutting blade; 3. Fixing plate; 4. Limiting assembly; 41. Pushing plate; 42. Insert block; 43. Slot; 44. Push rod; 45. Disc; 46. Circular groove; 47. Arc-shaped block; 48. Circular block; 49. Fixing block; 410. Sliding rod; 411. First spring; 412. Limiting rod; 413. Second spring; 5. Stop block. Detailed Implementation

[0030] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0031] Reference Figure 1-5 This utility model provides an embodiment of an automatic cutting device for plastic film with easily replaceable cutters, including a cutting machine 1. A cutting blade 2 is provided on one side of the cutting machine 1, and the top of the cutting blade 2 contacts the top of the cutting machine 1. A fixing plate 3 is fixedly installed on the front side of the cutting machine 1, and a limiting component 4 for limiting the cutting blade 2 is provided on the front side of the fixing plate 3. When the cutting blade 2 that needs to be replaced is first replaced, the limiting component 4 can be used to release the limiting of the cutting blade 2, and then the cutting blade 2 can be removed for replacement. Finally, the limiting component 4 is used again to complete the installation of the cutting blade 2, and finally the cutting machine 1 can be started to cut the plastic film.

[0032] Reference Figure 1-5The limiting component 4 includes a push plate 41, with a plug 42 fixedly mounted on the back of the push plate 41. A slot 43 is provided on the front side of the cutter 2, and the plug 42 and slot 43 are inserted into each other. A push rod 44 is fixedly mounted on the front side of the push plate 41, with the front end of the push rod 44 extending through to the front side of the fixed plate 3 and slidingly mounted with the fixed plate 3. Through the cooperation of the push plate 41, plug 42, slot 43 and push rod 44, when it is necessary to limit the cutter 2, the push rod 44 can be pushed, and the push rod 44 moves to the back, causing the push plate 41 and the cutter 2 to be limited. The insert 42 moves backward and inward into the slot 43, thus limiting the cutting blade 2. A disc 45 is fixedly installed on the front side of the push rod 44, and a circular groove 46 is formed on the surface of the disc 45. An arc-shaped block 47 is provided on the front side of the fixing plate 3, and a circular block 48 is fixedly installed on the left side of the arc-shaped block 47. The circular block 48 and the circular groove 46 are inserted into each other. Through the cooperation of the disc 45, the circular groove 46, the arc-shaped block 47 and the circular block 48, when the insert 42 enters into the slot 43, the arc-shaped block 47 can be pushed to the left. The arc-shaped block 47 moves to the left, causing the circular block 48 to move to the left. The circular block 48, moving to the left, enters the circular groove 46, thus limiting the push rod 44 and preventing the insert block 42 from disengaging from the slot 43. A fixing block 49 is fixedly installed on the front side of the fixing plate 3, and a sliding rod 410 is fixedly installed on the right side of the arc-shaped block 47. The right end of the sliding rod 410 extends through to the right side of the fixing block 49 and slides with it. Through the cooperation of the fixing block 49 and the sliding rod 410, the arc-shaped block 47 is limited, preventing... The arc-shaped block 47 will wobble when it moves, which will prevent the arc-shaped block 47 from effectively driving the round block 48 into the round groove 46. The surface of the sliding rod 410 is fitted with a first spring 411. The left end of the first spring 411 is fixedly installed on the right side of the arc-shaped block 47, and the right end of the first spring 411 is fixedly installed on the left side of the fixing block 49. By setting the first spring 411, the arc-shaped block 47 and the round block 48 can always bear the elastic force of the first spring 411, which will make the round block 48 more stable when it enters the round groove 46.

[0033] Reference Figure 1-5Limiting rods 412 are fixedly installed on both sides of the front of the push plate 41. The front end of the limiting rod 412 extends through to the front side of the fixed plate 3 and is slidably installed with the fixed plate 3. A second spring 413 is sleeved on the surface of the limiting rod 412. The front end of the second spring 413 is fixedly installed with the back of the fixed plate 3, and the back of the second spring 413 is fixedly installed with the front side of the push plate 41. Through the cooperation of the limiting rod 412 and the second spring 413, the push plate 41 can be limited to prevent the push plate 41 from shaking when moving, which would prevent the insert 42 from accurately entering the slot 43. This can limit the cutting blade 2. A stop block 5 is fixedly installed on the front side of the limiting rod 412. The back of the stop block 5 contacts the front side of the fixed plate 3. The stop block 5 can limit the limiting rod 412 to prevent it from detaching from the fixed plate 3 when moving.

[0034] Working principle: First, when replacing the cutting blade 2, pull the arc block 47 to the right. The movement of the arc block 47 causes the round block 48 to move to the right. The movement of the arc block 47 compresses the first spring 411. The round block 48 moves to the right and disengages from the round groove 46. Then, pull the disc 45 forward. The movement of the disc 45 causes the push rod 44, push plate 41, and limit rod 412 to move forward. The movement of the limit rod 412 compresses the second spring 413. The movement of the push plate 41 forward causes the insert block 42 and... The slot 43 is disengaged, and then the cutting blade 2 can be pulled to the bottom. The cutting blade 2 moves and comes into contact with the cutting machine 1, so that the cutting blade 2 can be removed. Then, the new cutting blade 2 can be brought into contact with the bottom of the inner wall of the cutting machine 1. Then, the push plate 41 can be pushed to the back. The push plate 41 moves to the back and drives the insert block 42 into the slot 43. Then, the arc block 47 can be released. Since the arc block 47 and the round block 48 are always subjected to the elastic force of the first spring 411, the push rod 44 can be limited, thereby limiting the cutting blade 2.

[0035] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. An automatic cutting device for plastic film with easily replaceable cutters, comprising a cutting machine (1), characterized in that: A cutting blade (2) is provided on one side of the cutting machine (1), and the top of the cutting blade (2) is in contact with the top of the cutting machine (1). A fixing plate (3) is fixedly installed on the front side of the cutting machine (1), and a limiting component (4) for limiting the cutting blade (2) is provided on the front side of the fixing plate (3).

2. The automatic cutting device for plastic film with easily replaceable cutters according to claim 1, characterized in that: The limiting component (4) includes a push plate (41), a plug (42) is fixedly installed on the back of the push plate (41), a slot (43) is provided on the front side of the cutting blade (2), the plug (42) and the slot (43) are inserted into each other, a push rod (44) is fixedly installed on the front side of the push plate (41), and the front end of the push rod (44) extends through to the front side of the fixed plate (3) and slides with the fixed plate (3).

3. The automatic cutting device for plastic film with easily replaceable cutters according to claim 2, characterized in that: A disc (45) is fixedly installed on the front side of the push rod (44). A circular groove (46) is opened on the surface of the disc (45). An arc-shaped block (47) is provided on the front side of the fixing plate (3). A circular block (48) is fixedly installed on the left side of the arc-shaped block (47). The circular block (48) and the circular groove (46) are inserted into each other.

4. The automatic cutting device for plastic film with easily replaceable cutters according to claim 3, characterized in that: A fixing block (49) is fixedly installed on the front side of the fixing plate (3), and a sliding rod (410) is fixedly installed on the right side of the arc-shaped block (47). The right end of the sliding rod (410) extends through to the right side of the fixing block (49) and is slidably installed with the fixing block (49).

5. An automatic cutting device for plastic film with an easily replaceable cutter according to claim 4, characterized in that: A first spring (411) is sleeved on the surface of the sliding rod (410). The left end of the first spring (411) is fixedly installed on the right side of the arc block (47), and the right end of the first spring (411) is fixedly installed on the left side of the fixing block (49).

6. The automatic cutting device for plastic film with easily replaceable cutters according to claim 2, characterized in that: Limiting rods (412) are fixedly installed on both sides of the front of the push plate (41). The front end of the limiting rod (412) extends through to the front side of the fixing plate (3) and is slidably installed with the fixing plate (3). A second spring (413) is sleeved on the surface of the limiting rod (412). The front end of the second spring (413) is fixedly installed with the back of the fixing plate (3), and the back of the second spring (413) is fixedly installed with the front side of the push plate (41).

7. An automatic cutting device for plastic film with easily replaceable cutters according to claim 6, characterized in that: A stop block (5) is fixedly installed on the front side of the limiting rod (412), and the back side of the stop block (5) contacts the front side of the fixing plate (3).

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