Film cutting machine knife needle protection device and film cutting machine using the same

Abstract

The present invention provides a film cutting machine blade needle protection device, comprising a locking mechanism, wherein the locking mechanism comprises a locking slot, a locking base and a rubber strip, wherein the locking slot and the locking base are fixedly connected. The present invention provides a film cutting machine, comprising a base, a pressure wheel, a motor, and a blade needle, wherein the blade needle is fixed to the motor, the pressure wheel presses the film to be cut onto the base and drives the film to move on the base by rolling, the motor drives the blade needle to move in a direction perpendicular to the direction of movement of the film, and the film cutting machine uses the film cutting machine blade needle protection device. Compared with the prior art, the film cutting machine blade needle protection device can effectively solve the problem that the existing film cutting machine rubber strip is difficult to remove by setting a locking mechanism and placing a rubber strip in the locking mechanism, and saves the use of the rubber strip through the design of materials and structures.

Description

Technical Field

[0001] The present invention relates to the technical field of electronic equipment protective film processing equipment, and more particularly to a film cutting machine knife needle protection device and a film cutting machine using the same. Background Art

[0002] Film cutting machines, also known as film cutting machines, are commonly used to cut the front and back panel protective films of mobile phones and tablets. Existing film cutting machines use motors to drive the blade needle to trim the edges of electronic device protective films and cut mobile phone films into standard shapes and widths. Figure 1 The cutting needle 14 of the film cutting machine 1 is easily damaged. In order to protect the fragile cutting needle 14, the film cutting machine 1 of the prior art is provided with a protective device on the working base plate 11, that is, a rubber strip 16 is provided on the working base plate 11. The rubber strip 16 is usually made of a solid soft material. The rubber strip 16 is installed in a position directly opposite the cutting needle 14. When the cutting force of the cutting needle 14 is too strong to cut through the protective film, the cutting needle 14 will not directly hit the hard working base plate 11 and cause damage, but will cut the relatively soft rubber strip 16, thereby playing a role in protecting the cutting needle 14. After the cutting needle 14 cuts several times, the rubber strip 16 will be cut and lose its function of protecting the cutting needle 14. Since the rubber strip 16 is fixed on the working base plate 11, it is usually fixed tightly to prevent the position of the rubber strip 16 from changing. When replacing the rubber strip 16 of the current film cutting machine 1, it is necessary to disassemble the outer shell of the film cutting machine 1 and pull out one end of the rubber strip 16, which is very laborious and inconvenient. When installing the rubber strip 16, the film cutting machine 1 needs to be disassembled and the rubber strip 16 needs to be squeezed into one end of the working base plate 11, which is very inconvenient. In addition, the rubber strip 16 in the prior art is mostly ordinary rubber products, which are disposable items. After being worn out, it can only be taken out and thrown away, resulting in a lot of waste. Summary of the Invention

[0003] The technical problem to be solved by the present invention is that, in view of the defects of the existing technology that the rubber strips are difficult to disassemble and excessively wasteful, a film cutting machine knife needle protection device is provided, which includes a locking mechanism and a rubber strip, the locking mechanism includes a detachable card slot for installing the rubber strip and a detachable locking base installed on the film cutting machine, and the card slot and the locking base are fixedly connected.

[0004] Preferably, the snap-fit ​​base includes a handle and a base, the handle is provided at one end of the base, the base and the handle are integrally formed, and a protrusion for fixing to the film cutting machine is provided on the snap-fit ​​base.

[0005] Preferably, the rubber strip is made of thermoplastic elastomer, and the hardness of the thermoplastic elastomer is 25A-85A.

[0006] Preferably, it further comprises a heating box for repairing the adhesive strip, the heating box comprising a heating box cover and a heating box base, the heating box cover and the heating box base being movably connected.

[0007] Preferably, the heating box includes a heating groove for fixing the locking mechanism, the shape of the heating groove is adapted to the shape of the locking mechanism, a heating box locking point is provided in the heating groove, and the heating box locking point cooperates with the protrusion to enable the locking base to be locked into the heating groove.

[0008] Preferably, the heating box further includes a first movable rod and a second movable rod, the second movable rod is a cylinder, a roller is provided at the center of the cylinder of the second movable rod, the first end of the first movable rod is movably connected to the heating box cover, the second end of the first movable rod is movably connected to the second movable rod through the roller, a track is fixedly provided on the base of the heating box, the first end of the roller passes through the track and is movably connected to the first movable rod, the second end of the roller is connected to the second movable rod, and the roller can move linearly along the track in the plane defined by the track.

[0009] A film cutting machine is provided, comprising a base, a pressure wheel, a motor, a cutting needle, and a film cutting machine cutting needle protection device. The cutting needle is fixed to the motor. The pressure wheel presses the film to be cut onto the base and drives the film to move linearly along a first direction on the base by rolling. The motor drives the cutting needle to move linearly along a second direction. The locking mechanism is detachably fixed to the base.

[0010] Preferably, the film cutting machine is provided with a base opening, and the base is provided with a base slot. The base slot is connected to the outside world through the base opening. After the snap mechanism installs the rubber strip and snaps it into the base slot, the upper surface of the rubber strip, the top of the slot, and the upper plane of the base are flush.

[0011] Preferably, the base slot is provided with a base clamping point for engaging the clamping mechanism, and the clamping base is provided with a convex point for fixing to the film cutting machine, and the base clamping point cooperates with the convex point to enable the clamping mechanism to be clamped into the base slot.

[0012] Preferably, a disassembly groove is provided on the base. After the locking mechanism is placed into the base and locked, the handle is accommodated in the disassembly groove and occupies part of the space of the disassembly groove. The remaining space of the disassembly groove is not less than 2 cubic centimeters.

[0013] Compared to existing technologies, the present invention effectively addresses the difficulty of removing the existing film cutter's rubber strip by providing a locking mechanism and placing a rubber strip within the mechanism. A locking base and raised points within the locking mechanism define the mechanism's position. This, combined with the base's slot and the base's locking points, ensures a stable locking mechanism when inserted into the film cutter, preventing any shaking and potentially disrupting film cutting. A handle within the locking mechanism, combined with a removal slot, facilitates manual removal. The rubber strip is made of a thermoplastic elastomer with a hardness of 25A to 85A, which not only protects the needle but also facilitates its reuse. Heating the rubber strip in a heating box repairs the strip. A heating slot within the heating box facilitates positioning the locking mechanism and ensures that the upper end of the rubber strip remains horizontal during heating, preventing deformation during the curing process. The structural design of the heating box ensures that the locking mechanism can be automatically removed upon opening the heating box lid, making it convenient to use. A base slot is provided on the film cutter to facilitate positioning and securing the locking mechanism. A base opening with a shape identical to the cross-section of the locking mechanism not only facilitates placement of the locking mechanism but also ensures that the sides of the film cutter do not protrude or dent after the locking mechanism is placed, enhancing the appearance of the film cutter. A disassembly slot on the base, combined with a handle, makes disassembly of the locking mechanism even easier. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] The present invention will be further described below with reference to the accompanying drawings and embodiments, as shown in the figures:

[0015] In the prior art: 1-film cutting machine; 11-working base plate; 14-knife needle; 16-rubber strip;

[0016] In the present invention: 3-film cutting machine; 32-pressing wheel; 34-knife needle; 35-motor; 36-rubber strip; 31-base; 311-base card slot; 312-base opening; 315-disassembly slot; 313-base card point;

[0017] 20 - snap-fit ​​mechanism; 201 - slot; 203 - bump; 204 - snap-fit ​​base; 2041 - base; 2042 - handle;

[0018] 22 - heating box; 221 - heating tank; 226 - heating box cover; 223 - heating box clamping point; 224 - heating box base; 227 - first movable rod; 229 - second movable rod; 225 - roller; 228 - track;

[0019] Figure 1 It is a structural diagram of the rubber strip of the film cutting machine in the prior art;

[0020] Figure 2It is a structural schematic diagram of the film cutting machine of the present invention;

[0021] Figure 3 This is a schematic structural diagram of the clamping mechanism of the film cutting machine of the present invention;

[0022] Figure 4 This is a partial enlarged structural diagram of the film cutting machine engaging mechanism of the present invention;

[0023] Figure 5 This is a schematic structural diagram of the film cutting machine base of the present invention;

[0024] Figure 6 This is a schematic structural diagram of the film cutting machine base of the present invention cut along the BB' direction;

[0025] Figure 7 This is a schematic diagram of a partially enlarged structure of the film cutting machine base of the present invention cut along the BB' direction;

[0026] Figure 8 This is a schematic structural diagram of the film cutting machine base in the AA direction of the present invention;

[0027] Figure 9 2. It is a structural schematic diagram of a heating box of a knife needle protection device of the present invention;

[0028] Figure 10 It is a partial enlarged structural schematic diagram of the heating box of the knife needle protection device of the present invention;

[0029] Figure 11 It is a schematic diagram of the principle of the disassembly and engagement mechanism of the heating box of the knife needle protection device of the present invention. DETAILED DESCRIPTION

[0030] In order to solve the defects of the prior art that the rubber strips are difficult to disassemble and excessively wasted, a film cutting machine knife needle protection device is provided, which facilitates the disassembly and assembly of the rubber strips and avoids excessive waste of the rubber strips, and a film cutting machine using the device is provided.

[0031] To facilitate understanding of the present invention, the present invention will be described more fully below with reference to the accompanying drawings. The drawings illustrate exemplary embodiments of the present invention. However, the present invention may be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided to provide a more thorough and comprehensive understanding of the present invention.

[0032] It should be noted that when an element is referred to as being "fixed to" another element, it may be directly attached to the other element or there may be an intermediate element. When an element is referred to as being "connected to" another element, it may be directly connected to the other element or there may be an intermediate element. The terms "vertical," "horizontal," and similar expressions used herein are for illustrative purposes only.

[0033] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art of the present invention. The terms used in this specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention.

[0034] As used in this specification, terms containing ordinal numbers such as "first" and "second" may be used to describe various components, but these components are not limited by these terms. The purpose of using these terms is only to distinguish one component from other components. For example, without departing from the scope of the present invention, the first component may be named the second component, and similarly, the second component may be named the first component. The term "and / or" as used herein includes any and all combinations of one or more of the relevant listed items.

[0035] See also Figure 2-Figure 5 The film cutting machine blade protection device of the present invention includes a locking mechanism 20, in which a rubber strip 36 is installed. The film cutting machine 3 of the present invention includes a base 31, a pressure wheel 32, a motor 35, and a knife needle 34. The knife needle 34 is fixed on the motor 35, and the locking mechanism 20 is detachably fixed on the base 31. The pressure wheel 32 can press the film to be cut on the base 31, and drive the film to move along the Y-axis direction shown in the figure on the base 31 by rolling. The motor 35 drives the knife needle 34 to operate in a manner perpendicular to the Y-axis, that is, to move along the X-axis direction shown in the figure, thereby cutting a plane figure on the film. When the cutting force of the knife needle 34 is too large to cut through the protective film, the knife needle 34 will cut the relatively soft rubber strip 36 instead of the hard base 31, thereby protecting the knife needle 34. The film cutter 3 is provided with a base slot 311, which is located on the base 31. A base opening 312 is provided on the side of the film cutter 3 to facilitate the placement of the engaging mechanism 20. The base slot 311 communicates with the outside world through the base opening 312. The shape of the base opening 312 is the same as the cross-sectional shape of the engaging mechanism 20 along the A-A' direction. The adhesive strip 36 is placed in the engaging mechanism 20. During use, the engaging mechanism 20 is placed into the film cutter 3 through the base opening 312 provided on the side of the film cutter 3 and engaged with the base 31.

[0036] The engaging mechanism 20 includes a slot 201 and a engaging base 204. The slot 201 and the engaging base 204 are fixedly connected together and can be integrally formed or detachably connected. The slot 201 is used to accommodate the adhesive strip 36. When in use, the adhesive strip 36 can be placed in the slot 201. After placement, the upper side of the adhesive strip 36 is flush with the upper side of the slot 201. The engaging base 204 includes a base 2041 connected to the slot 201 and a handle 2042. The base 2041 and the handle 2042 are integrally formed. The base 2041 is a rectangular parallelepiped, one end of which is connected to the handle 2042. The engaging base 204 is provided with a convex point 203 for engaging. The convex point 203 can be a hemispherical dot-shaped structure. The convex point 203 is provided on the handle 2042, and the engaging mechanism 20 can be engaged with the film cutting machine 3, thereby fixing the engaging mechanism 20. The engaging mechanism 20 is preferably an integrally formed metal structure.

[0037] See also Figure 5-Figure 8 , Figure 7 for Figure 6 An enlarged view of the portion circled by the dotted circle shows that a base slot 311 for accommodating the locking mechanism 20 is provided on the base 31, and a base locking point 313 is provided on the base 31. The shape of the base locking point 313 is adapted to the convex point 203. When the locking mechanism 20 equipped with the rubber strip 36 is locked in the base slot 311, the upper surface of the rubber strip 36, the top of the slot 201 and the upper plane of the base are flush, and the convex point 203 is locked in the base locking point 313.

[0038] The bottom of the base 31 is provided with a disassembly slot 315. In order to clearly show the disassembly slot 315, Figure 8 The location of the disassembly slot 315 is indicated by a dotted line. When the engaging mechanism 20 is inserted into the base and engaged, the handle 2042 is accommodated in the disassembly slot 315, occupying a portion of the space therein. The remaining space in the disassembly slot 315 is large enough to accommodate at least the front end of a finger, and the remaining space is preferably no less than 2 cubic centimeters. To remove the engaging mechanism 20, a worker can lift the end of the film cutter 3 closest to the base opening 312, insert a finger into the disassembly slot 315, and pull outward to remove the engaging mechanism 20.

[0039] A rubber strip 36 can be mounted within the locking mechanism 20. In the present invention, the rubber strip 36 is preferably made of a thermoplastic elastomer, such as a thermoplastic resin, preferably with a hardness of 25A to 85A. Thermoplastic resins melt upon heating and solidify upon cooling, without any chemical reaction. Therefore, the thermoplastic properties of the resin polymer are maintained regardless of the number of repeated heating and cooling cycles. This facilitates repair of the rubber strip 36 by heating if it is damaged.

[0040] See also Figures 9-11 , Figure 10 for Figure 9 The enlarged view of the portion encircled by the dotted circle shows that the blade needle protection device of the film cutting machine of the present invention further includes a heating box 22. The heating box 22 includes a heating box cover 226 and a heating box base 224. The heating box cover 226 is movably connected to the heating box base 224 and can be opened and closed in a flipping manner. A heating groove 221 is provided on the heating box base. The shape of the heating groove 221 is adapted to the locking mechanism 20. The locking mechanism 20 can extend into the heating groove 221 and lock into the heating groove 221. A heating box locking point 223 is provided in the heating groove 221. The heating box locking point 223 is adapted to the shape of the protrusion 203. When the locking mechanism 20 is locked in the heating groove 221, the protrusion 203 is locked into the heating box locking point 223. A level (not shown) can be provided on the heating box 22 to monitor the horizontal state of the heating box 22 to ensure that the upper end of the rubber strip 36 is in a horizontal state during the heating process and prevent the rubber strip 36 from deforming when solidifying. When using the film cutter 3, if the adhesive strip 36 installed in the film cutter 3 is damaged after being cut multiple times and needs to be repaired, the engaging mechanism 20 is manually removed and placed in the heating tank 221. Engagement is completed and the level is adjusted. After adjustment is complete, the heating box 22 is activated. The heating of the heating box 22 causes the damaged adhesive strip 36 to change from a solid state to a liquid state. Once the adhesive strip 36 has completely become liquid, the heating box 22 is turned off and allowed to gradually return to room temperature. Once the adhesive strip 36 has returned to a solid state, the engaging mechanism 20 is removed and installed in the film cutter 3, allowing the adhesive strip 36 to be reused.

[0041] The heating box 22 further includes a first movable rod 227 and a second movable rod 229. One end of the first movable rod 227 is movably connected to the heating box cover 226, and the second end is movably connected to the second movable rod 229. The second movable rod 229 is cylindrical, and a roller 225 is disposed at the center of the cylinder. The first movable rod 227 is movably connected to the second movable rod 229 via the roller 225, and the first movable rod 227 can rotate along the roller 225. A track 228 is fixed to the heating box base 224. One end of the roller 225 passes through the track 228 and is movably connected to the first movable rod 227. The other end is connected to the second movable rod 229. The roller 225 can move linearly along the track 228 within the plane defined by the track 228.

[0042] When the adhesive strip 36 needs to be repaired, the locking mechanism 20 is manually inserted into the heating groove 221, and the heating box cover 226 is in a closed state. After the locking mechanism 20 is inserted into the heating groove 221, the protrusion 203 is locked in the heating box locking point 223. The handle 2042 of the locking mechanism 20 can abut against the second movable rod 229, or there can be a certain gap between the second movable rod 229. Start the heating box, the temperature inside the heating box rises, and the adhesive strip 36 melts into a liquid state. After the adhesive strip 36 is completely melted, turn off the heating box, let it stand to room temperature, and leave it for a period of time. When the adhesive strip 36 solidifies into a solid again, open the heating box cover 226. The heating box cover 226 drives the first movable rod 227 to rotate upward, and at the same time generates a horizontal force on the first movable rod 227. The first end of the first movable rod 227 rotates with the heating box cover 226, and the second end of the first movable rod 227 moves horizontally along the track 228, driving the second movable rod 229 to move in the same direction. The second movable rod 229 abuts against the handle 2042 and pushes the handle 2042 outward. Under the pushing force of the second movable rod 229, the protrusion 203 disengages from the heating box locking point 223, driving the locking mechanism 20 to move outward, and the locking mechanism 20 can be removed from the heating box 22.

[0043] Compared with the prior art, the film cutting machine needle protection device can effectively solve the problem that the existing film cutting machine needle strip is difficult to remove by setting a locking mechanism 20 and placing a rubber strip 36 in the locking mechanism 20; a locking base 204 and a protrusion 203 are set in the locking mechanism 20 to limit the position of the locking mechanism 20, and cooperate with the base card slot 311 and the base card point 313 set on the base card slot 311 to ensure that the locking mechanism 20 is stably locked when placed in the film cutting machine 3, preventing the locking mechanism 20 from shaking during the film cutting process of the film cutting machine 3, thereby affecting the film cutting. A handle 2042 is set in the locking mechanism 20, which cooperates with the disassembly groove 315 to facilitate manual removal of the locking mechanism 20. The rubber strip 36 is set to a thermoplastic elastomer with a hardness of 25A-85A, which is not only conducive to protecting the knife needle, but also convenient for the reuse of the rubber strip 36. The rubber strip 36 is heated by the heating box 22 to repair the rubber strip. A heating groove 221 is provided on the heating box 22 to facilitate positioning of the locking mechanism 20. It can also ensure that the upper end of the adhesive strip 36 is in a horizontal state when the locking mechanism 20 is heated, thereby preventing the adhesive strip 36 from deforming during the coagulation process. By designing the structure of the heating box 22, the purpose of automatically removing the locking mechanism 20 by opening the heating box cover 226 is achieved, which is convenient for use. A base locking groove 311 is provided on the film cutting machine 3 to facilitate positioning and fixing the locking mechanism 20. A base opening 312 having the same shape as the cross-section of the locking mechanism 20 is provided on the film cutting machine 3. This not only facilitates the placement of the locking mechanism 20, but also prevents the side of the film cutting machine 3 from protruding or concave after the locking mechanism 20 is placed in the film cutting machine 3, making the appearance of the film cutting machine 3 more beautiful. A disassembly groove 315 is provided on the base 31, which cooperates with the handle 2042 to make it easier to disassemble the locking mechanism 20.

[0044] The embodiments of the present invention are described above in conjunction with the accompanying drawings, but the present invention is not limited to the above-mentioned specific implementation methods. The above-mentioned specific implementation methods are merely illustrative and not restrictive. Under the guidance of the present invention, ordinary technicians in this field can also make many forms without departing from the scope of protection of the present invention and the claims, all of which are protected by the present invention.

Claims

1. A film cutting machine needle protection device, characterized in that: It includes a snap-fit ​​mechanism and a rubber strip, wherein the snap-fit ​​mechanism includes a detachable slot for mounting the rubber strip and a detachable snap-fit ​​base mounted on the film cutting machine, wherein the slot and the snap-fit ​​base are fixedly connected. The snap-fit ​​base includes a handle and a base. The handle is provided at one end of the base. The base and the handle are integrally formed. The snap-fit ​​base is provided with a convex point for fixing to the film cutting machine. The film cutting machine needle protection device also includes a heating box for repairing the rubber strip, and the heating box includes a heating box cover and a heating box base, and the heating box cover and the heating box base are movably connected.

2. The film cutting machine needle protection device according to claim 1, characterized in that: The rubber strip is made of thermoplastic elastomer, and the hardness of the thermoplastic elastomer is 25A-85A.

3. The film cutting machine needle protection device according to claim 1, characterized in that: The heating box includes a heating groove for fixing the locking mechanism. The shape of the heating groove is adapted to the shape of the locking mechanism. A heating box locking point is provided in the heating groove. The heating box locking point cooperates with the protrusion to enable the locking base to be locked into the heating groove.

4. The film cutting machine needle protection device according to claim 3, characterized in that: The heating box further includes a first movable rod and a second movable rod. The second movable rod is a cylinder. A roller is provided at the center of the cylinder of the second movable rod. The first end of the first movable rod is movably connected to the heating box cover. The second end of the first movable rod is movably connected to the second movable rod through the roller. A track is fixedly provided on the base of the heating box. The first end of the roller passes through the track and is movably connected to the first movable rod. The second end of the roller is connected to the second movable rod. The roller can move linearly along the track in the plane defined by the track.

5. A film cutting machine, characterized in that: It includes a base, a pressure wheel, a motor, a cutting needle, and a film cutting machine cutting needle protection device as described in any one of claims 1 to 4, wherein the cutting needle is fixed on the motor, the pressure wheel presses the film to be cut on the base, and drives the film to move linearly along the first direction on the base by rolling, the motor drives the cutting needle to move linearly along the second direction, and the locking mechanism is detachably fixed to the base.

6. The film cutting machine according to claim 5, characterized in that: The film cutting machine is provided with a base opening, and the base is provided with a base slot. The base slot is connected to the outside world through the base opening. After the snap mechanism installs the rubber strip and snaps it into the base slot, the upper surface of the rubber strip, the top of the slot, and the upper plane of the base are flush.

7. The film cutting machine according to claim 6, characterized in that: The base card slot is provided with a base card point for engaging the engaging mechanism, and the engaging base is provided with a convex point for fixing to the film cutting machine. The base card point cooperates with the convex point to enable the engaging mechanism to be engaged in the base card slot.

8. The film cutting machine according to claim 7, characterized in that: A disassembly groove is provided on the base. After the locking mechanism is placed in the base and locked, the handle is accommodated in the disassembly groove and occupies part of the space of the disassembly groove. The remaining space of the disassembly groove is not less than 2 cubic centimeters.

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