A cutting knife structure and a plastic packaging machine containing the same

Abstract

A cutter structure and a plastic packaging machine comprising the same, the cutter structure comprising a cutter base in sliding fit with a cutter track, a cutter pressing seat being provided on the cutter base, an elastic member being provided between the cutter pressing seat and the cutter base, a cutter head assembly being connected to one side of the cutter pressing seat, and the cutter head assembly being capable of running up and down along with the cutter pressing seat; the above-mentioned scheme has the advantages that the cutter can be automatically reset after completing the cutting, and the cutter does not need to be pulled up.

Description

Technical Field

[0001] This application relates to the technical field of laminators, and more specifically, to a cutting structure and a laminator containing the same. Background Technology

[0002] A laminating machine is a device that can coat parts to be laminated and then automatically heat-press them into capsules. Since the laminating film is released in rolls, it needs to be cut after laminating a product. Therefore, the laminating machine is equipped with a cutter head assembly structure for cutting. The current cutter head assembly structure cuts the laminating film by pressing down the blades, and then lifting them up after cutting. Therefore, the existing cutter head assembly structure cannot achieve the function of automatic upward reset. Utility Model Content

[0003] In view of the above-mentioned shortcomings of the prior art, this application provides a cutter structure that can automatically move upward and reset after cutting without the need for lifting.

[0004] To solve the above-mentioned technical problems, the technical solution adopted in this application is as follows: a cutting blade structure, which includes a cutting blade base that slides with a cutting blade track, a cutting blade pressing seat covered on the cutting blade base, an elastic element provided between the cutting blade pressing seat and the cutting blade base, and a blade head assembly connected to one side of the cutting blade pressing seat, the blade head assembly being able to move up and down with the cutting blade pressing seat.

[0005] By employing the above structure, this application provides an elastic element between the cutter pressing seat and the cutter base. When the cutter head assembly needs to cut the plastic sealant, the cutter pressing seat is pressed down, and the cutter head assembly connected to it follows downward to achieve the cutting action. When cutting is not required, the pressing is withdrawn, and the cutting seat can be lifted by the pushing action of the elastic element, so that the cutter head assembly connected to it can also move upward automatically. Therefore, the above structure of this application can achieve automatic reset of the cutter without the need for a lifting action. In addition, because the elastic element is provided, the cutter in the cutter head assembly and the plastic sealant are in elastic contact rather than hard contact, which can not only ensure the cutting effect but also improve the feel, and also make the contact between the cutter and the plastic sealant more sufficient.

[0006] Furthermore, the lower end of the cutter pressing seat is provided with a movable groove for accommodating the cutter base, and a limiting protrusion is provided on the inner top wall of the movable groove; with this structure, when the limiting protrusion contacts the cutter base, the cutter pressing seat can no longer be pressed down, thereby limiting its downward distance, avoiding excessive pressing that would cause the cutter in the cutter head assembly to descend too far and damage the internal components, and also avoiding excessive deformation of the elastic element, thereby extending the service life of the elastic element.

[0007] Furthermore, a guide rod is provided on the inner top wall of the movable groove, and a guide hole is provided through the upper cover of the cutter base. The guide rod is slidably connected to the guide hole, and the elastic element is fitted onto the guide rod. With this structure, the elastic element can be well positioned, and its displacement during deformation can be avoided.

[0008] Furthermore, it also includes a limiting screw, with the limiting screw connected to one end of the guide rod that passes through the guide hole. The diameter of the screw head of the limiting screw is larger than the diameter of the guide hole. With this structure, the cutter base and the cutter pressing seat can be connected to each other by the limiting screw thread, and the screw head setting can keep the cutter base and the cutter pressing seat connected to each other, so that they do not separate during the push process of the elastic element.

[0009] Furthermore, it also includes a screw and a limiting piece. One end of the guide rod that passes through the guide hole is connected to the limiting piece by the screw. The diameter of the limiting piece is larger than the diameter of the guide hole. With this structure, the limiting piece is fitted onto the head of the screw. Then, during the extension of the elastic element, the limiting piece can abut against the inner top wall of the cutter base, preventing the cutter base and the cutter pressing seat from separating from each other.

[0010] Furthermore, a fitting post is provided on the upper end face of the cutter base opposite to the guide rod. The guide hole is coaxially arranged with the fitting post, and the outer diameter of the fitting post is adapted to the inner diameter of the elastic element. With this structure, the extended fitting post provides sufficient support for the sliding process of the guide rod, making it less prone to tilting. By setting the diameters of the fitting post and the elastic element to be roughly the same, the elastic element will not experience significant radial displacement or wobbling after being fitted onto the fitting post, thus maintaining the stability of the elastic element's position.

[0011] Furthermore, the inner top wall of the cutter base is provided with an abutment block for abutting against the cutter track, and the bottom end of the abutment block is lower than the bottom end of the limiting screw. With this structure, the abutment block can abut smoothly against the cutter track, making the sliding process of the cutter base smooth; and at the same time, the bottom end of the abutment block is limited to be lower than the bottom end of the limiting screw, so as to avoid the limiting screw contacting the cutter track and causing damage.

[0012] Furthermore, the lower end of the cutter base is provided with a mating block, and a sliding groove for accommodating the cutter track is formed between the mating block and the abutment block, so that the cutter base and the cutter track are in clearance fit; with this structure, the sliding process of the two can be made more stable and will not have a large deviation, and it can also ensure that there is no large friction between the two, making the sliding process more effortless.

[0013] Furthermore, the cutter pressing seat has two parallel limiting ribs on its two inner sidewalls along the width direction of the cutter track, and the sidewall of the cutter base slides between the two limiting ribs on the same side. With this structure, the cutter pressing seat and the cutter base can be limited to each other along the length direction of the cutter track, so as to ensure that the cutter pressing seat slides synchronously during the back-and-forth sliding process of the cutter base along the length direction of the cutter track.

[0014] This application also provides a laminator that includes the cutting structure described above. When the cutting blade is not in use, the laminator can automatically reset without manual lifting. Moreover, the cutting blade makes elastic contact with the laminator film during use, rather than hard contact, which improves the feel and makes the pressing and cutting process more comfortable. Attached Figure Description

[0015] Figure 1 A schematic diagram of the cutting blade structure of this application.

[0016] Figure 2 This application presents a schematic diagram of the structure of the cutter, shown in the first exploded view.

[0017] Figure 3 This application presents a schematic diagram of the structure of the cutting tool, shown in the second exploded view.

[0018] Figure 4 This application presents a structural schematic diagram of the first view of the cutter structure cross-section.

[0019] Figure 5 This application presents a structural schematic diagram of the cutter structure in the second view of its cross-sectional view.

[0020] Figure 6 This application presents a schematic diagram of the structure of the cutter pressing seat.

[0021] Figure 7 This application presents a schematic diagram of the cutter base.

[0022] Figure 8 This application presents a structural schematic diagram of a laminating machine.

[0023] As shown in the attached diagram: 1. Cutter track, 2. Cutter base, 201. Guide hole, 202. Fitting post, 203. Abutment block, 204. Mating block, 3. Cutter pressing seat, 301. Movable groove, 302. Limiting protrusion, 303. Guide rod, 304. Limiting rib, 4. Elastic element, 5. Cutter head assembly, 6. Limiting screw, 7. Screw, 8. Limiting piece, 9. Sliding groove. Detailed Implementation

[0024] The technical solutions in the embodiments of this application will be clearly and completely described below with reference to the embodiments and accompanying drawings. Obviously, the described embodiments are merely preferred embodiments, and not all embodiments. Based on the embodiments in this application, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of this invention.

[0025] Furthermore, it should be noted that when a component is referred to as being "fixed to" another component, it can be directly on the other component or it may be fixed via another intermediate component. When a component is considered to be "connected to" another component, it can be directly connected to the other component or it may be fixed via another intermediate component. When a component is considered to be "set on" another component, it can be set directly on the other component or it may be fixed via another intermediate component. The terms "vertical," "horizontal," "left," "right," and similar expressions used herein are for illustrative purposes only; unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein in the specification of this invention is for the purpose of describing particular embodiments only and is not intended to limit the invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0026] As attached Figure 1-7As shown, this application discloses a cutting structure, which includes a cutting base 2 that slides with a cutting track 1. A cutting press seat 3 is mounted on the cutting base 2, and an elastic element 4 is disposed between the cutting press seat 3 and the cutting base 2. A blade assembly 5 is connected to one side of the cutting press seat 3, and the blade assembly 5 can move up and down with the cutting press seat 3. Specifically, the cutting base 2 of this application can slide back and forth along the length of the cutting track 1, driving the cutting blade on the blade assembly 5 to perform a cutting operation on the plastic seal film. The cutting press seat 3 of this application slides up and down on the cutting base 2. By pressing the cutting press seat 3, the elastic element 4 is squeezed to achieve up and down movement, thereby driving the blade assembly 5 to contact the plastic seal film to perform a cutting action or to spring up and detach from the plastic seal film. The elastic element of this application can be a straight spring structure, axially clamped between the cutting base 2 and the cutting press seat 3, and always has an elastic deformation force.

[0027] By employing the above structure, this application provides an elastic element 4 between the cutter pressing seat and the cutter base. When the cutter head assembly 5 needs to cut the plastic sealant, the cutter pressing seat 3 is pressed down, and the cutter head assembly 5 connected to it moves downward to achieve the cutting action. When cutting is not required, the pressing is withdrawn, and the cutter pressing seat 3 can be lifted up by the pushing action of the elastic element 4, so that the cutter head assembly 5 connected to it can also move upward automatically. Therefore, the above structure of this application can achieve automatic reset of the cutter without the need for a lifting action. In addition, because the elastic element 4 is provided, the cutter in the cutter head assembly 5 and the plastic sealant are in elastic contact rather than hard contact, which can not only ensure the cutting effect but also improve the feel, and also make the contact between the cutter and the plastic sealant more sufficient.

[0028] As attached Figure 4-6 As shown, the lower end of the cutter pressing seat 3 described in this application is provided with a movable groove 301 for accommodating the cutter base 2. A limiting protrusion 302 is provided on the inner top wall of the movable groove 301. Specifically, the cutter base 2 can slide and fit with the cutter pressing seat 3 in the vertical direction through the movable groove 301. For example, four evenly distributed limiting protrusions 302 can be provided at the four corners of the inner top wall of the cutter pressing seat 3. When the cutter pressing seat 3 is pressed down, it can first abut against the upper top surface of the cutter base 2. After the limiting protrusion 302 contacts the cutter base 2, it can no longer press down on the cutter pressing seat 3, thereby limiting its downward distance. This avoids excessive pressing that could cause the cutter in the cutter head assembly 5 to descend too far and damage the internal components. It can also avoid excessive deformation of the elastic element, thereby extending the service life of the elastic element.

[0029] As attached Figure 4-7As shown, a guide rod 303 is also provided on the inner top wall of the movable groove 301 described in this application. A guide hole 201 is provided through the upper cover of the cutter base 2. The guide rod 303 is slidably connected to the guide hole 201. The elastic element 4 is sleeved on the guide rod 303. Specifically, the guide rod 303 and the guide hole 201 are axially opposite to each other. After the guide rod 303 is sleeved into the guide hole 201, the elastic element 4 can be sleeved on the guide rod 303, thereby limiting the elastic element 4 between the cutter base 2 and the cutter pressing seat 3. The elastic element 4 can be a straight spring, with one end abutting against the inner top wall of the cutter pressing seat 3 and the other end abutting against the upper surface of the cutter base 2, and having an elastic deformation force to always have a pushing force on the cutter pressing seat 3. With this structure, the elastic element 4 can be well positioned, avoiding displacement during its deformation process.

[0030] As attached Figure 2-5 As shown, the cutter structure of this application also includes a limiting screw 6. The guide rod 303 is connected to the limiting screw 6 at one end through the guide hole 201. The diameter of the screw head of the limiting screw 6 is larger than the diameter of the guide hole 201. Specifically, the limiting screw 6 is inserted from the lower part of the cutter base 2, so that the thread of the limiting screw 6 is connected to the internal thread of the guide rod 303. With this structure, the cutter base 2 and the cutter pressing seat 3 can be connected to each other through the thread of the limiting screw 6. The setting of the screw head diameter can connect the cutter base 2 and the cutter pressing seat 3 to each other, and keep them from separating during the pushing process of the elastic member 4.

[0031] Or, as attached Figure 2-5 As shown, the cutter structure of this application also includes a screw 7 and a limiting piece 8. One end of the guide rod 303 that passes through the guide hole 201 is connected to the limiting piece 8 through the screw 7. The diameter of the limiting piece 8 is larger than the diameter of the guide hole 201. Specifically, the limiting piece 8 is sleeved on the head of the screw 7, and then the limiting piece 8 can abut against the inner top wall of the cutter base 2 during the extension of the elastic member 4, so as to prevent the cutter base 2 and the cutter pressing seat 3 from separating from each other. In the above two schemes, the limiting screw 6 and the screw 7 can be referred to by two different reference numerals in the drawings, both of which refer to the screw structure.

[0032] As attached Figure 4-5 and Figure 7As shown, a fitting post 202 is provided on the upper end face of the cutter base 2 of this application at a position opposite to the guide rod 303. The guide hole 201 is coaxially arranged with the fitting post 202, and the outer diameter of the fitting post 202 is adapted to the inner diameter of the elastic member 4. Specifically, a fitting post 202 extending towards the cutter pressing seat 3 is provided on the upper surface of the cutter base 2. Providing such an extended fitting post 202 can provide sufficient support for the sliding process of the guide rod 303 and prevent it from tilting. By setting the diameters of the fitting post 202 and the elastic member 4 to be similar, the elastic member 4 will not experience large radial displacement or shaking after being fitted onto the fitting post 202, thus maintaining the stability of the position of the elastic member 4.

[0033] As attached Figure 3-5 and Figure 7 As shown, the inner top wall of the cutter base 2 described in this application is provided with an abutment block 203 for abutting against the cutter track 1. The bottom end of the abutment block 203 is lower than the bottom end of the limiting screw 6; that is, the bottom end of the limiting screw 6 is higher than the bottom end of the abutment block 203. This allows for smooth abutment between the abutment block 203 and the cutter track 1, making the sliding process of the cutter base 2 smooth. At the same time, it limits the bottom end of the abutment block 203 to be lower than the bottom end of the limiting screw 6, preventing the limiting screw 6 from contacting the cutter track 1 and causing damage.

[0034] As attached Figure 2-5 and Figure 7 As shown, the lower end of the cutter base 2 described in this application is provided with a mating block 204. A sliding groove 9 for accommodating the cutter track 1 is formed between the mating block 204 and the abutment block 203, so that the cutter base 2 and the cutter track 1 are in clearance fit. Specifically, the mating block 204 and the abutment block 203 are arranged vertically opposite each other to support and abut the cutter track 1. This arrangement can make the sliding process of the two more stable and prevent large deviations, and can also ensure that there is no large friction between the two, making the sliding process more effortless.

[0035] As attached Figure 2-3 As shown, at least two elastic elements 4 are provided in this application, and the two elastic elements 4 are arranged side by side along the length extension direction of the cutter track 1. Specifically, a pair of guide rods 303 and fitting posts 202 that are sleeved and cooperate with the elastic elements 4 are also provided. With this structure, the provision of at least two elastic elements 4 can provide sufficient pushing force to the cutter pressing seat 3, ensuring that the cutter head assembly 5 can be fully reset when not in use, and avoiding miscutting. Moreover, at least two elastic elements 4 can more evenly support the cutter pressing seat 3 to prevent tilting, thereby ensuring the accuracy of the cutter head assembly 5 in cutting the plastic sealant film.

[0036] As attached Figure 3-6 As shown, the cutter pressing seat 3 of this application has two parallel limiting ribs 304 on its two inner sidewalls along the width direction of the cutter track 1. The sidewall of the cutter base 2 is slidably fitted between the two limiting ribs 304 on the same side. Specifically, two limiting ribs 304 are provided on the same sidewall, extending vertically and parallel to each other, with a certain interval and spacing between them, so that the sidewall of the cutter base 2 can be slidably fitted within this interval and spacing. With this structure, the cutter pressing seat 3 and the cutter base 2 can be limited to each other along the length direction of the cutter track 1, so as to ensure that the cutter pressing seat 3 can slide synchronously with the cutter base 2 during the back-and-forth sliding process along the length direction of the cutter track 1, thereby driving the cutter head assembly 5 to cut the plastic seal film.

[0037] As attached Figure 8 As shown, this application also provides a laminator, which includes the cutting structure described above. When the cutting blade is not in use, the laminator can automatically reset without manual lifting. Moreover, the cutting blade and the laminator make elastic contact rather than hard contact during use, which improves the feel and makes the pressing and cutting process more comfortable.

[0038] The cutting structure described above in this application, by setting an elastic element 4 between the cutting press seat and the cutting base, allows the cutting head assembly 5 connected to the cutting press seat 3 to move up and down with it. When cutting the plastic seal film, pressing the cutting press seat 3 downward compresses the elastic element 4, causing the cutting head assembly 5 to descend and contact the plastic seal film. Then, it slides back and forth along the cutting track 1 to achieve the cutting action of the plastic seal film. When the pressure on the cutting press seat 3 is released, the elastic element 4 can automatically and elastically reset, pushing the cutting press seat 3 upward automatically, thereby driving the cutting head assembly 5 to follow it upward and disengage from the plastic seal film.

Claims

1. A cutting blade structure comprising a cutting blade base (2) that slides in conjunction with a cutting blade track (1), characterized in that: The cutter base (2) is covered with a cutter pressing seat (3), and an elastic element (4) is provided between the cutter pressing seat (3) and the cutter base (2). A cutter head assembly (5) is connected to one side of the cutter pressing seat (3), and the cutter head assembly (5) can move up and down with the cutter pressing seat (3).

2. The cutting structure according to claim 1, characterized in that: The lower end of the cutter pressing seat (3) is provided with a movable groove (301) for accommodating the cutter base (2), and a limiting protrusion (302) is provided on the inner top wall of the movable groove (301).

3. The cutting structure according to claim 2, characterized in that: A guide rod (303) is also provided on the inner top wall of the movable groove (301). A guide hole (201) is provided through the top cover of the cutter base (2). The guide rod (303) is slidably connected to the guide hole (201). The elastic element (4) is fitted onto the guide rod (303).

4. The cutting structure according to claim 3, characterized in that: It also includes a limiting screw (6), one end of the guide rod (303) that passes through the guide hole (201) is connected to the limiting screw (6), and the diameter of the screw head of the limiting screw (6) is larger than the diameter of the guide hole (201).

5. The cutting structure according to claim 3, characterized in that: It also includes a screw (7) and a limiting piece (8). One end of the guide rod (303) that passes through the guide hole (201) is connected to the limiting piece (8) by the screw (7). The diameter of the limiting piece (8) is larger than the diameter of the guide hole (201).

6. The cutting structure according to claim 3, characterized in that: A fitting post (202) is provided on the upper end face of the cutter base (2) at a position opposite to the guide rod (303). The guide hole (201) is coaxially arranged with the fitting post (202). The outer diameter of the fitting post (202) is adapted to the inner diameter of the elastic element (4).

7. The cutting structure according to claim 4, characterized in that: The inner top wall of the cutter base (2) is provided with an abutment block (203) for abutting against the cutter track (1), and the bottom end of the abutment block (203) is lower than the bottom end of the limiting screw (6).

8. The cutting structure according to claim 7, characterized in that: The lower end of the cutter base (2) is provided with a mating block (204), and a sliding groove (9) for accommodating the cutter track (1) is formed between the mating block (204) and the abutment block (203) so that the cutter base (2) and the cutter track (1) are in clearance fit.

9. The cutting structure according to claim 1, characterized in that: The cutter pressing seat (3) is provided with two parallel limiting ribs (304) on its two inner side walls along the width direction of the cutter track (1). The side wall of the cutter base (2) is slidably fitted between the two limiting ribs (304) on the same side.

10. A laminating machine, characterized in that: The sealing machine includes the cutting structure as described in any one of claims 1-9.

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