Die-cutting machine for producing mobile phone protective film

Abstract

The invention relates to the field of blanking, in particular to a die-cutting machine for mobile phone protective film production. The die cutting machine comprises a machine table and a die cutting assembly, the left end and the right end of the machine table are provided with a pay-off shaft and a waste take-up shaft respectively, raw materials before die cutting are arranged on the pay-off shaft, and the raw materials after die cutting are wound to the waste take-up shaft; and the die cutting assembly is located between the discharging shaft and the waste winding shaft and comprises an installation base plate, a die plate, a cut-off tool and a rotating plate, the cut-off tool and the rotating plate are both installed in the die plate, the rotating plate is located in front of the cut-off tool in the running direction of the raw materials, the rotating plate can rotate relative to the die plate, and a blowing and sucking structure is arranged on the rotating plate. The finished mobile phone film rotates under the action of the rotating plate after being cut off by the cut-off tool, the apex angle on the rear portion is located below the raw material, the raw material clamps one apex angle of the finished mobile phone film and conveys the finished mobile phone film forwards along with forward movement of the raw material, the finished mobile phone film cannot fall off in the conveying process, and the conveying reliability is high.

Description

Technical Field

[0001] The invention relates to the field of punching, and in particular to a die-cutting machine for producing mobile phone protective films. Background Art

[0002] Die Cutting Machine, also known as cutting machine and CNC punching machine, is mainly used for die cutting, creasing, hot stamping, laminating, automatic waste discharge and other operations of non-metallic materials such as self-adhesive, EVA, double-sided tape, mobile phone rubber pads, etc. The die cutting machine uses steel knives, hardware molds, steel wires (or templates carved from steel plates), and applies a certain amount of pressure through the stamping plate to roll and cut printed products or cardboard into a certain shape. It is an important equipment for post-printing packaging processing and molding.

[0003] The existing die-cutting methods of mobile phone film die-cutting machines include full-cutting and half-cutting. After the half-cutting die-cutting machine is finished cutting, the finished film is not completely separated from the original material, and it needs to be separated manually or with special tools at the film outlet position, which is inefficient. After the full-cutting film cutting machine is finished cutting, the finished film is completely separated from the original material. The finished film is driven by the original material to the limit plate during the continuous conveying of the original material, and then moves to the film outlet position. After the original material (waste film after cutting) is rolled up, it automatically falls to the collection frame, which is efficient. However, during the conveying process of the full-cutting film cutting machine, due to external factors such as the vibration of the original material or the finished film, the finished film may shift from the original material. Because the passage space of the limit plate is basically consistent with the film, it is difficult for the finished film to enter the limit plate, and then the film falls off, causing the film to accumulate or break.

[0004] The information disclosed in the background technology section of the present invention is only intended to deepen the understanding of the general background technology of the present invention, and should not be regarded as acknowledging or suggesting in any form that the information constitutes the prior art already known to those skilled in the art. Summary of the invention

[0005] According to the deficiencies of the prior art, the present invention proposes a die-cutting machine for producing mobile phone protective films to solve the problem that the transportation of finished films is unreliable after the existing die-cutting machines fully cut the films.

[0006] The die-cutting machine for producing a mobile phone protective film of the present invention adopts the following technical scheme: It includes a machine table and a die-cutting component. A pay-out shaft and a waste reel shaft are respectively arranged at the left and right ends of the machine table. The raw material before die-cutting is arranged on the pay-out shaft, and the raw material after die-cutting is reeled onto the waste reel shaft. A receiving plate for collecting finished mobile phone films is arranged above the waste reel shaft on the machine table. The die-cutting assembly is arranged on the machine table and is located between the pay-out shaft and the waste take-up shaft. The die-cutting assembly includes: A mounting substrate is disposed on the machine table so as to be movable up and down; A mold plate is detachably disposed below the mounting base plate; The cutting knife and the rotating plate are both installed inside the mold plate, and can move up and down under the drive of the mold plate and the mounting base plate. The cutting knife is used to cut out the finished mobile phone film on the raw material, and the cut finished mobile phone film is completely separated from the raw material; the rotating plate is located in front of the cutting knife along the running direction of the raw material, and the rotating plate can rotate relative to the mold plate. The shape of the rotating plate is adapted to the shape of the finished mobile phone film. The rotating plate is configured to drive the finished mobile phone film to rotate at a preset angle when pressed down, and reset when lifted; A blowing and suction structure is provided on the rotating plate. The blowing and suction structure is configured to suck air into the three top corners of the finished mobile phone film when the rotating plate is pressed down, and blow air into the remaining top corner, and the blown top corner is located at the rear, so that after rotation, the three top corners of the finished mobile phone film are above the original material, and the remaining top corner is below the original material.

[0007] Optionally, a rotating shaft is provided on the rotating plate, the rotating shaft is rotatably connected to the mold plate, the blowing and suction structure includes a suction pipe and a blowing pipe, a suction channel and a blowing channel are provided inside the rotating plate, a suction hole and a blowing hole are provided on the lower surface of the rotating plate, there are three suction holes, and there is one blowing hole, the suction holes and the blowing holes correspond to the four vertex corners of the rotating plate respectively, and the blowing hole is located at the rear, the suction channel is connected to the suction holes, and the blowing channel is connected to the blowing holes; The suction pipe and the blowing pipe are arranged on the rotating shaft, and the suction pipe is connected to the suction channel, and the blowing pipe is connected to the blowing channel; the suction pipe is connected to the suction equipment, and the blowing pipe is connected to the blowing equipment to realize the blowing and suction of the blowing holes and the suction holes.

[0008] Optionally, the cutting knife is movably arranged on the mold plate, and an elastic member is arranged on the upper surface of the cutting knife; a limit plate is arranged on the mold plate, and the limit plate is used to limit the lower end limit position of the cutting knife relative to the mold plate.

[0009] Optionally, the cutting knife has a main blade and an auxiliary blade located at one of the vertices of the main blade, the auxiliary blade extends obliquely backward in a direction away from the main blade, and the vertices of the main blade where the auxiliary blade is located are the same as the vertices of the main blade corresponding to the vertices of the finished film being blown.

[0010] Optionally, the rotation center of the rotating plate is offset, and the rotation center is biased toward the top angle at which the finished mobile phone film is blown.

[0011] Optionally, a transition plate is fixedly provided on the lower surface of the mounting base plate, a mating groove is provided on one side of the mold plate, and a mating block is provided on the lower surface of the transition plate. The mating block is located on one side of the transition plate and the mating block and the mating groove form a dovetail fit to prevent the mold plate and the transition plate from detaching up and down, and the other side of the mold plate is connected to the transition plate by bolts.

[0012] Optionally, a rear baffle is provided on the lower surface of the transition plate, which is used to limit the rear end limit position of the mold plate, and a rotatable front baffle is provided on the front surface of the transition plate, which is used to prevent the mold plate from detaching from the transition plate from the front end.

[0013] Optionally, a drive control device is provided on the mounting substrate, and the drive control device includes a motor, a driving gear and a matching gear; The motor is arranged above the mounting base plate, the driving gear is arranged on the output shaft of the motor, the rotating shaft passes through the mold plate, the transition plate and the mounting base plate and extends out of the upper end of the mounting base plate, the matching gear is arranged on the upper end of the rotating shaft, and the driving gear is meshed with the matching gear.

[0014] Optionally, the rotating shaft is detachably connected to the rotating plate.

[0015] Optionally, a support frame is provided at the rear side of the machine, and a plurality of spare shafts are provided on the support frame, and the spare shafts are used to suspend the pay-out shaft and the waste winding shaft.

[0016] The beneficial effects of the present invention are as follows: a die-cutting machine for producing a mobile phone protective film of the present invention is provided with a rotating plate and a blowing and sucking structure in the die-cutting component; under the action of the rotating plate and the blowing and sucking structure, the finished mobile phone film is cut by a cutting knife and then rotated, and a rear vertex is below the raw material; as the raw material moves forward, the raw material clamps a vertex of the finished mobile phone film (the vertex below the raw material) and conveys the finished mobile phone film forward, so that the finished mobile phone film will not fall off during conveyance, and the conveyance reliability is high; when the finished mobile phone film moves to the receiving plate, the raw material (waste film) moves downward and is wound onto the waste winding shaft; since the three vertex corners of the finished mobile phone film are above the raw material, after the raw material is wound, the finished mobile phone film is separated from the raw material and falls into the receiving plate, so that the collection is completed and the discharge is convenient.

[0017] Furthermore, the auxiliary blade of the cutting knife is provided, so that the cutting knife can cut an oblique slit at a specific position of the waste film, and the rotating finished mobile phone film can be stuck in the oblique slit, which is more stable during transportation.

[0018] Furthermore, the rotation center of the rotating plate is offset, so that the finished mobile phone film is stuck in a larger area of ​​the waste film and is less likely to fall off. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0020] Figure 1This is a schematic diagram of the overall structure of a die-cutting machine for producing a mobile phone protective film according to the present invention; Figure 2 This is a front view of a die-cutting machine for producing a mobile phone protective film according to the present invention; Figure 3 for Figure 2 Middle AA section view; Figure 4 for Figure 3 Enlarged view of point B in the middle; Figure 5 It is a structural schematic diagram of the mold plate and the parts thereon in the present invention; Figure 6 for Figure 5 A front view of Figure 7 for Figure 6 Middle DD section view; Figure 8 for Figure 6 Middle CC section view; Fig. 9 for Figure 8 Enlarged view of point E in the middle; Fig.10 It is a schematic structural diagram of the rotating plate and its components in the present invention.

[0021] In the figure: 100, machine table; 101, spare shaft; 102, pay-out shaft; 103, receiving plate; 104, waste material take-up shaft; 200, die-cutting components; 210, mold plate; 211, fixing hole; 212, rotation groove; 213, limit plate; 214, matching groove; 220, rotating plate; 221, air suction pipe; 222, air blowing pipe; 223, matching gear; 224, air suction channel; 225, air blowing channel; 226, rotating shaft; 230. Cutting knife; 231. Elastic member; 250. Mounting base plate; 251. Transition plate; 252. Motor; 253. Bracket. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0023] like Figures 1 to 10As shown, a die-cutting machine for producing mobile phone protective films provided by an embodiment of the present invention can continuously die-cut rolled mobile phone film raw materials and cut out finished mobile phone films that meet the requirements, which includes a machine table 100 and a die-cutting component 200; a pay-out shaft 102 and a waste material reel 104 are respectively provided at the left and right ends of the machine table 100, the raw materials before die-cutting are arranged on the pay-out shaft 102, and the raw materials after die-cutting (also referred to as waste film) are reeled onto the waste material reel 104, and a material receiving plate 103 is provided on the machine table 100 above the waste material reel 104 for collecting the finished mobile phone films.

[0024] The die-cutting assembly 200 is arranged on the machine 100 and is located between the pay-out shaft 102 and the waste material reel 104. The die-cutting assembly 200 can move up and down, and can cut out a finished mobile phone film on the continuously running raw material, and the cut finished mobile phone film is completely separated from the raw material. The cut finished mobile phone film runs with the raw material (waste film) to the receiving plate 103, and is separated from the raw material and falls into the receiving plate 103 when the raw material (waste film) is reeled onto the reel.

[0025] The die-cutting assembly 200 includes a mounting base plate 250 , a die plate 210 , a cutting blade 230 and a rotating plate 220 .

[0026] The mounting substrate 250 can be movably arranged on the machine platform 100 up and down. Specifically, a plurality of power cylinders are arranged on the machine platform 100. The mounting substrate 250 is connected to the output end of the corresponding power cylinder, and can then be reciprocated up and down under the drive of the power cylinder. The power cylinder can be a hydraulic cylinder, a pneumatic cylinder or other power element that can realize the above functions.

[0027] The mold plate 210 is detachably arranged under the mounting substrate 250; the cutting knife 230 and the rotating plate 220 are both installed inside the mold plate 210, and can move back and forth up and down driven by the mold plate 210 and the mounting substrate 250. The cutting knife 230 is used to cut out the finished mobile phone film from the raw material.

[0028] The rotating plate 220 is located in front of the cutting knife 230 along the running direction of the raw material. The rotating plate 220 can rotate relative to the mold plate 210. The shape of the rotating plate 220 is adapted to the shape of the finished mobile phone film. The rotating plate 220 is configured to drive the finished mobile phone film to rotate by a preset angle when pressed down, and reset when lifted; for details, refer to Figure 7 A rotating groove 212 is provided on the lower surface of the mold plate 210, and the rotating plate 220 is rotatably arranged in the rotating groove 212. The two side surfaces of the rotating groove 212 perpendicular to the running direction of the raw material are arc-shaped surfaces to expand the space and facilitate the rotation of the rotating plate 220.

[0029] The rotating plate 220 is provided with a blowing and suction structure, which is configured to suck air from three vertex corners of the finished mobile phone film when the rotating plate 220 is pressed down, and blow air from the remaining vertex corner, and the vertex corner being blown is located at the rear, so that the three vertex corners of the finished mobile phone film are above the raw material after rotation, and the remaining vertex corner is below the raw material. Through the above arrangement, under the action of the rotating plate 220 and the blowing and suction structure, the finished mobile phone film is cut by the cutting knife 230 and then rotated, and a vertex corner at the rear is below the raw material. As the raw material moves forward, the raw material clamps a vertex corner of the finished mobile phone film (the vertex corner located below the raw material) and conveys the finished mobile phone film forward, so that the finished mobile phone film will not fall off during transportation, and the transportation reliability is high. When the finished mobile phone film moves to the receiving plate 103, the waste film moves downward and is rolled up onto the waste winding shaft 104. Since the three top corners of the finished mobile phone film are above the raw material, after the raw material is rolled up, the finished mobile phone film is separated from the raw material and falls into the receiving plate 103, completing the collection and facilitating the discharge.

[0030] In a further embodiment, a rotating shaft 226 is provided on the rotating plate 220, and the rotating shaft 226 is rotatably connected to the mold plate 210. The blowing and suction structure includes an air suction pipe 221 and an air blowing pipe 222. An air suction channel 224 and an air blowing channel 225 are provided inside the rotating plate 220. An air suction hole and an air blowing hole are provided on the lower surface of the rotating plate 220. There are three air suction holes and one air blowing hole. The air suction holes and the air blowing holes correspond to the four top corners of the rotating plate 220 respectively, and the air blowing hole is located at the rear. The air suction channel 224 is connected to the air suction holes, and the air blowing channel 225 is connected to the air blowing holes.

[0031] Two connecting holes are provided on the rotating shaft 226, and both connecting holes are connected from top to bottom. The suction pipe 221 and the blowing pipe 222 are provided on the top of the rotating shaft 226, and the suction pipe 221 is connected to the suction channel 224 through one of the connecting holes, and the blowing pipe 222 is connected to the blowing channel 225 through the other connecting hole.

[0032] The suction pipe 221 is externally connected to a suction device, and the blowing pipe 222 is externally connected to a blowing device, so as to realize blowing and suction of the blowing holes and the suction holes.

[0033] In a further embodiment, the cutting blade 230 has a main blade and an auxiliary blade located at one of the top corners of the main blade, the auxiliary blade extends obliquely backward in a direction away from the main blade, and the top angle of the main blade where the auxiliary blade is located corresponds to the same top angle of the main blade as the top angle of the finished film being blown. During the die-cutting process, the main blade cuts out the finished mobile phone film, and the auxiliary blade cuts out a beveled slit on the waste film at a position corresponding to a corner of the finished mobile phone film. The beveled slit corresponds to the top corner of the finished mobile phone film under the raw material. During the forward movement of the raw material, the top corner of the finished mobile phone film under the raw material will be inserted into the beveled slit, thereby being more tightly connected with the raw material, further ensuring that the finished mobile phone film will not fall off during transportation.

[0034] In a further embodiment, the rotation center of the rotating plate 220 is offset, and the rotation center is biased toward the top corner where the finished mobile phone film is blown, that is, the rotation axis 226 is biased toward the blowing hole. This arrangement allows the finished mobile phone film to be stuck in the waste film area more during the rotation of the rotating plate 220, making it less likely to fall off.

[0035] In a further embodiment, in order to facilitate the connection between the mold plate 210 and the mounting substrate 250 , a transition plate 251 is fixedly provided on the lower surface of the mounting substrate 250 , and the mold plate 210 and the transition plate 251 are detachably connected.

[0036] Specifically, the mold plate 210 and the transition plate 251 are detachably connected by bolt fastening. To further facilitate installation and disassembly, the preferred embodiment of the present invention is that a matching groove 214 is provided on one side of the mold plate 210, and a matching block is provided on the lower surface of the transition plate 251. The matching block is located on one side of the transition plate 251 and the matching block and the matching groove 214 form a dovetail fit, thereby preventing the mold plate 210 and the transition plate 251 from being separated from each other. A fixing hole 211 is provided on the mold plate 210, and the fixing hole 211 is located on the opposite side of the matching groove 214. The fixing hole 211 is used to penetrate the bolt to achieve the connection between the mold plate 210 and the transition plate 251. Through the setting of the matching block and the matching groove 214, in the process of installing the mold plate 210, one side of the mold plate 210 is first connected to the transition plate 251 through the matching block and the matching groove 214, and then fixed with bolts on the other side. A single staff member can complete the operation, and the installation and disassembly are convenient.

[0037] Furthermore, a rear baffle is provided on the lower surface of the transition plate 251, which is used to limit the rear end limit position of the mold plate 210. A rotatable front baffle is provided on the front surface of the transition plate 251, which is used to prevent the mold plate 210 from being separated from the transition plate 251 from the front end. When in use, the front baffle is turned upward, and the mold plate 210 is inserted into the transition plate 251 from front to back. After being inserted into place, the front baffle is turned downward to stop the front surface of the mold plate 210, further improving the convenience of installation.

[0038] In a further embodiment, in order to realize the rotation of the rotating plate 220, a driving control device is provided on the mounting substrate 250, and the rotating shaft 226 passes through the mold plate 210, the transition plate 251 and the mounting substrate 250 and extends out of the upper end of the mounting substrate 250. The rotating shaft 226 is transmission-connected to the driving control device, and the driving control device is used to control the rotation of the rotating shaft 226.

[0039] In a preferred embodiment of the present invention, the driving control device includes a motor 252, a driving gear and a matching gear 223. The motor 252 is arranged above the mounting substrate 250 through a bracket 253, the driving gear is arranged on the output shaft of the motor 252, and the matching gear 223 is arranged on the rotating shaft 226, and the driving gear is meshed with the matching gear 223.

[0040] Furthermore, in order to facilitate the assembly and disassembly of the mold plate 210, the rotating shaft 226 and the rotating plate 220 are detachably connected, and specifically, they can be connected in a threaded manner.

[0041] In a further embodiment, a support frame is provided at the rear side of the machine 100 , and a plurality of spare shafts 101 are provided on the support frame. The spare shafts 101 are used to suspend the pay-out shaft 102 and the waste winding shaft 104 .

[0042] In a further embodiment, the cutting knife 230 is arranged on the mold plate 210 so as to be movable up and down, and an elastic member 231 is arranged on the upper surface of the cutting knife 230; a limit plate 213 is arranged on the mold plate 210, and the limit plate 213 is used to limit the lower end limit position of the cutting knife 230 relative to the mold plate 210, that is, the limit plate 213 prevents the cutting knife 230 from falling off the mold plate 210. During cutting, after the cutting knife 230 contacts the raw material, it moves upward relative to the mold plate 210 to compress the elastic member 231, and then as the die-cutting assembly 200 continues to move downward, the elastic member 231 is compressed to the limit, and the cutting knife 230 cuts the finished mobile phone film on the raw material. By arranging the elastically compressed cutting knife, the cutting knife first presses the raw material to position it before cutting it, and the cutting is more accurate.

[0043] Furthermore, the limiting plate 213 and the mold plate 210 are detachably connected, and specifically can be fastened with bolts, so that the limiting plate 213 can be easily removed, and the cutting knife 230 can be easily replaced.

[0044] In combination with the above embodiments, the use principle and working process of the present invention are as follows: The raw material is pulled out from the pay-out shaft 102, passes through the bottom of the die-cutting assembly 200, and is rolled up to the waste reel 104. The pay-out shaft 102 and the waste reel 104 are provided with traction power for controlling the pay-out and reeling of the raw material.

[0045] Start the power cylinder of the die-cutting assembly 200. The die-cutting assembly 200 moves up and down driven by the power cylinder to cut out the finished mobile phone film on the raw material being fed. The finished mobile phone film that has been cut moves forward with the waste film and stops when it reaches the position of the rotating plate 220. The cutting knife 230 of the die-cutting assembly 200 cuts the next finished mobile phone film. At the same time, the rotating plate 220 gradually presses down the finished mobile phone film that has been cut. The suction pipe 221 always sucks air, and the blowing pipe 222 always blows air. At the moment when the rotating plate 220 presses the finished mobile phone film, the motor 252 starts, driving the rotating plate 220 to rotate quickly. The rotating plate 220 drives the finished mobile phone film to rotate. At the same time, with the action of the blowing and suction structure, the three top corners of the cut finished mobile phone film are lifted up and are at the upper end of the waste film when it rotates. , one top corner is pressed down out of the lower end of the waste film; then the die-cutting component 200 is lifted, the raw material continues to move and drives the finished mobile phone film to move, and the top corner of the finished mobile phone film below the waste film is inserted into the bevel cut and stuck, which is more reliable when conveyed forward and is not easy to fall off; after the raw material moves to the receiving plate 103, it is rolled down to the waste material winding shaft 104. Since the three top corners of the finished mobile phone film are above the waste film, as the waste material is rolled up, the finished mobile phone film is separated from the waste material and falls into the receiving plate 103, making it easier to discharge the material; with the conveying of the raw material and the repeated up and down movement of the die-cutting component 200, continuous film cutting is achieved.

[0046] When cutting finished mobile phone films of different sizes, the mold plate 210 can be disassembled and different rotating plates 220 and cutting knives 230 can be replaced.

[0047] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A die-cutting machine for producing mobile phone protective films, characterized in that: It includes a machine table and a die-cutting component. A pay-out shaft and a waste reel shaft are respectively arranged at the left and right ends of the machine table. The raw material before die-cutting is arranged on the pay-out shaft, and the raw material after die-cutting is reeled onto the waste reel shaft. A receiving plate for collecting finished mobile phone films is arranged above the waste reel shaft on the machine table. The die-cutting assembly is arranged on the machine table and is located between the pay-out shaft and the waste take-up shaft. The die-cutting assembly includes: A mounting substrate is disposed on the machine table so as to be movable up and down; A mold plate is detachably disposed below the mounting base plate; The cutting knife and the rotating plate are both installed inside the mold plate, and can move up and down under the drive of the mold plate and the mounting base plate. The cutting knife is used to cut out the finished mobile phone film on the raw material, and the cut finished mobile phone film is completely separated from the raw material; the rotating plate is located in front of the cutting knife along the running direction of the raw material, and the rotating plate can rotate relative to the mold plate. The shape of the rotating plate is adapted to the shape of the finished mobile phone film. The rotating plate is configured to drive the finished mobile phone film to rotate at a preset angle when pressed down, and reset when lifted; A blowing and suction structure is provided on the rotating plate. The blowing and suction structure is configured to suck air into the three top corners of the finished mobile phone film when the rotating plate is pressed down, and blow air into the remaining top corner, and the blown top corner is located at the rear, so that after rotation, the three top corners of the finished mobile phone film are above the original material, and the remaining top corner is below the original material.

2. A die-cutting machine for producing mobile phone protective films according to claim 1, characterized in that: The rotating plate is provided with a rotating shaft, which is rotatably connected with the mold plate, the blowing and suction structure includes a suction pipe and a blowing pipe, a suction channel and a blowing channel are provided inside the rotating plate, and a suction hole and a blowing hole are provided on the lower surface of the rotating plate, there are three suction holes and one blowing hole, the suction holes and the blowing holes correspond to the four vertex corners of the rotating plate respectively, and the blowing hole is located at the rear, the suction channel is connected to the suction hole, and the blowing channel is connected to the blowing hole; The suction pipe and the blowing pipe are arranged on the rotating shaft, and the suction pipe is connected to the suction channel, and the blowing pipe is connected to the blowing channel; the suction pipe is connected to the suction equipment, and the blowing pipe is connected to the blowing equipment to realize the blowing and suction of the blowing holes and the suction holes.

3. A die-cutting machine for producing mobile phone protective films according to claim 1, characterized in that: The cutting knife is movably arranged on the mold plate, and an elastic part is arranged on the upper surface of the cutting knife. A limit plate is arranged on the mold plate, and the limit plate is used to limit the lower end limit position of the cutting knife relative to the mold plate.

4. A die-cutting machine for producing mobile phone protective films according to claim 2, characterized in that: The cutting knife has a main blade and an auxiliary blade located at one of the top angles of the main blade. The auxiliary blade extends obliquely backward in a direction away from the main blade. The top angle of the main blade where the auxiliary blade is located is the same as the top angle of the main blade corresponding to the top angle of the finished film being blown.

5. The die-cutting machine for producing mobile phone protective film according to claim 2, characterized in that: The rotation center of the rotating plate is offset, and the rotation center is biased toward the top angle at which the finished mobile phone film is blown.

6. A die-cutting machine for producing mobile phone protective films according to claim 2, characterized in that: A transition plate is fixedly arranged on the lower surface of the mounting base plate, a matching groove is arranged on one side of the mold plate, and a matching block is arranged on the lower surface of the transition plate. The matching block is located on one side of the transition plate and the matching block and the matching groove form a dovetail fit to prevent the mold plate and the transition plate from being separated up and down. The other side of the mold plate is connected to the transition plate by bolts.

7. A die-cutting machine for producing mobile phone protective films according to claim 6, characterized in that: The lower surface of the transition plate is also provided with a rear baffle plate, which is used to limit the rear end limit position of the mold plate. The front surface of the transition plate is provided with a rotatable front baffle plate, which is used to prevent the mold plate from detaching from the transition plate from the front end.

8. The die-cutting machine for producing mobile phone protective films according to claim 6, characterized in that: A drive control device is arranged on the mounting base plate, and the drive control device comprises a motor, a driving gear and a matching gear; The motor is arranged above the mounting base plate, the driving gear is arranged on the output shaft of the motor, the rotating shaft passes through the mold plate, the transition plate and the mounting base plate and extends out of the upper end of the mounting base plate, the matching gear is arranged on the upper end of the rotating shaft, and the driving gear is meshed with the matching gear.

9. A die-cutting machine for producing mobile phone protective films according to claim 8, characterized in that: The rotating shaft is detachably connected to the rotating plate.

10. The die-cutting machine for producing mobile phone protective films according to claim 1, characterized in that: A support frame is arranged at the rear side of the machine, and a plurality of spare shafts are arranged on the support frame. The spare shafts are used to hang the pay-out shaft and the waste winding shaft.

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