A die-cutting device for hot melt adhesive for mobile phone display screen

Abstract

The present invention belongs to the technical field of mobile phone display screens, and specifically is a die-cutting device for hot melt adhesive for mobile phone display screens, comprising a die-cutting seat; a transmission seat is fixedly connected to the upper surface of the die-cutting seat; the transmission seat is composed of a plurality of transmission wheels, and the plurality of transmission wheels are connected by belts; a support frame is fixedly connected to the middle side of the upper surface of the transmission seat; a cam is rotatably connected to the middle part of the upper surface of the support frame; since the die-cutting knife seat is in the shape of a U-shaped blade, when it cuts the hot melt adhesive template, the die-cutting knives on both sides of the U shape will press against its surface, which can not only cut out the required shape and size, but also, under the action of the die-cutting knives on both sides, can play a certain pressing and positioning role on the hot melt adhesive with higher plasticity, thereby reducing the problem of relative displacement of the hot melt adhesive template during the die-cutting process due to its large deformation, which is beneficial to the subsequent production of mobile phone display screens.

Description

Technical Field

[0001] The invention belongs to the technical field of mobile phone display screens, in particular to a die-cutting device for hot melt adhesive for mobile phone display screens. Background Art

[0002] At present, the design of electronic products such as computers, mobile phones, and tablets is becoming more and more sophisticated, and the size requirements are getting higher and higher. Therefore, the requirements for various composite die-cut components used inside them are also getting higher and higher; in mobile phone displays, hot melt adhesive components are needed for positioning and bonding.

[0003] During the production process of display screens, the screen and the frame need to be bonded together. First, hot melt adhesive is applied at intervals on the upper surface of the outer frame, and then the screen is pressed onto the outer frame. The screen and the outer frame are bonded together using hot melt adhesive, and the display screen can be assembled. However, there are still some problems when die-cutting the hot melt adhesive.

[0004] Since hot melt adhesive is a material with high plasticity and its deformation is relatively complex and the degree of deformation is large, during the die-cutting process, when the cutter and the hot melt adhesive template come into contact with each other, affected by the characteristics of the hot melt adhesive itself, there will be a relative offset problem between it and the supporting platform, which affects the die-cutting of the hot melt adhesive.

[0005] To this end, the present invention provides a die-cutting device for hot melt adhesive for mobile phone display screens. Summary of the invention

[0006] In order to make up for the deficiencies of the prior art, at least one technical problem raised in the background technology is solved.

[0007] The technical solution adopted by the present invention to solve its technical problems is: a die-cutting device for hot melt adhesive for mobile phone display screens described in the present invention comprises a die-cutting seat; a transmission seat is fixedly connected to the upper surface of the die-cutting seat; the transmission seat is composed of a plurality of transmission wheels, and the plurality of transmission wheels are connected by belts; a support frame is fixedly connected to the middle side of the upper surface of the transmission seat; a cam is rotatably connected to the middle part of the upper surface of the support frame; a mounting plate is fixedly connected to the surface of the support frame; an elastic pressure rod is slidably connected to the inside of the mounting plate; the bottom end of the elastic pressure rod is fixedly connected to the die-cutting knife seat; the shape of the die-cutting knife seat is U-shaped; a groove adapted to the elastic pressure rod is provided inside the mounting plate; the die-cutting knife seat and the transmission seat are arranged on the same vertical line; it should be noted that the cam is connected to the output end of the external motor; since hot melt adhesive is a material with high plasticity, and its deformation is relatively complex and the deformation degree is large, during the die-cutting process of the die-cutting knife, when the cutter and the hot melt adhesive template contact each other, they are affected by the characteristics of the hot melt adhesive itself. The influence of the property will cause relative offset between it and the supporting platform, which affects the die-cutting of the hot melt adhesive; when the die-cutting equipment is used, when the hot melt adhesive is die-cutting, the hot melt adhesive template is horizontally placed on the upper surface of the transmission seat, and the transmission wheel on the upper surface of the transmission seat is driven by the driving motor to rotate, so that the transmission wheel drives the hot melt adhesive template on its surface to move, and the cam is driven by the motor to rotate. During the rotation, the cam will indirectly squeeze the elastic pressure rod, and the elastic pressure rod drives the die-cutting knife seat to move downward, and then the die-cutting knife on the surface of the die-cutting knife seat will cut the hot melt adhesive template on the surface of the transmission seat. Since the shape of the die-cutting knife seat is a U-shaped blade, when it cuts the hot melt adhesive template, the die-cutting knives on both sides of the U shape will press against its surface, which can not only cut out the required shape and size, but also under the action of the die-cutting knives on both sides, it can play a certain pressing and positioning role on the hot melt adhesive with higher plasticity, reducing the problem of relative offset of the hot melt adhesive template during the die-cutting process due to its large deformation, which is beneficial to the subsequent production of mobile phone displays.

[0008] Preferably, the outer surface of the transmission seat is fixedly connected to a connecting frame; the number of the connecting frames is two, and they are symmetrically arranged; the interior of each connecting frame is slidably connected to a magnetic push rod; the outer surface of the die-cutting knife seat is fixedly connected to a magnetic seat; it should be noted that the magnetic properties of the magnetic seat and the magnetic push rod are the same, and according to the principle of like charges repel each other, when the die-cutting knife seat drives the magnetic seat to move downward, the magnetic push rods on both sides are subjected to repulsive force and will move to the side close to the hot melt adhesive template, so that the magnetic push rods can further position the hot melt adhesive template, thereby reducing the problem of relative displacement during the die-cutting process.

[0009] Preferably, the outer surface of each magnetic push rod is fixedly connected to a compression spring; the diameter of the compression spring is larger than the diameter of the magnetic push rod; during operation, as the magnetic push rod moves, the magnetic push rod will also compress the spring to move, and at this time, the elastic force of the compression spring assists in stamping and cutting, thereby improving the die-cutting flexibility of this device for hot melt adhesive templates.

[0010] Preferably, the lower surface of each magnetic push rod is fixedly connected to a push pin; the lower surface of the transmission seat is fixedly connected to a limiting plate; the upper surface of the limiting plate is slidably connected to a supporting plate; the lower surface of the supporting plate is fixedly connected to an arc rod on the side close to the push pin; the shape of the push pin close to the arc rod is an arc; when working, during the movement of the magnetic push rod, the magnetic push rod will simultaneously drive the push pin to move, and during the movement of the push pin, the arc-shaped convex seat on its surface will contact and press against the arc rod, so that the arc rod drives the supporting plate to move toward the side close to the die-cutting knife seat, so that the supporting plate assists in pressing the hot melt adhesive template, acts as an auxiliary platform, and thus facilitates the die-cutting of the hot melt adhesive template.

[0011] Preferably, a limiting groove is provided on the upper surface of the limiting plate; the lower surface of the supporting plate is slidably connected to the inside of the limiting groove through a connecting rod, and the shape of the connecting rod is adapted to the shape of the limiting groove; a connecting rod is arranged under the supporting plate, and the connecting rod is slidably connected to the inside of the limiting groove, which is beneficial to limiting the position of the supporting plate, so that the supporting plate and the die-cutting knife seat are always on the same vertical plane, making it convenient for the die-cutting knife seat to cut out hot-melt adhesive bodies of equal specifications.

[0012] Preferably, a cutting groove is provided on the upper surface of the support plate; the number of the cutting grooves is two, and they are symmetrically arranged; the shape of the cutting groove is compatible with the shape of the die-cutting knife seat; the cutting groove and the die-cutting knife seat are on the same vertical plane; the support plate is arranged below the transmission seat; when working, when the die-cutting knife seat presses the hot melt adhesive template, under the action of the matching cutting groove, it can facilitate the precise die-cutting of the hot melt adhesive template, so that the die-cutting knife seat and the hot melt adhesive template are evenly pressurized, which is beneficial to the production of mobile phone display screens.

[0013] Preferably, each of the upper surfaces of the support plates is rotatably connected to a moving wheel; a plurality of the moving wheels are provided, and are arranged in a linear array on the upper surface of the support plate; a heat conductor is fixedly connected to the outer surface of the moving wheel; the heat conductor is connected to an external power cord via an electric heating wire; when working, heat is supplied to the heat conductor via the electric heating wire, and is transmitted to the surface of the hot melt adhesive template via the moving wheel, so that a sol film is formed on its surface, which facilitates the upper die-cutting knife seat to be pressed into the hot melt adhesive template, reduces the formation of knife marks on its surface due to excessive hardness, and cooperates with the rotation of the moving wheel to facilitate the transportation of the hot melt adhesive template.

[0014] Preferably, a connecting seat is fixedly connected to the upper surface of the support plate and close to one side of the incision groove; the number of the connecting seats is two, and they are respectively arranged on one side of the two incision grooves; the outer surface of the connecting seat is rotatably connected to a deflection plate; the surface of the deflection plate is fixedly connected to an elastic rod; the side of the elastic rod away from the deflection plate is connected to the outer surface of the connecting seat; during operation, when the die-cutting knife seat cuts the hot melt adhesive template through the incision groove, the die-cutting knife seat will first contact the deflection plate on one side of the connecting seat and squeeze it, so that the deflection plate compresses the elastic rod to rotate at a certain angle. After one cutting is completed, the elastic rod recovers and drives the deflection plate to press against the cutting and separation part of the hot melt adhesive template, so that the burrs formed by die-cutting are promptly integrated into the surface melt adhesive film, thereby improving the die-cutting quality.

[0015] Preferably, the magnetic push rod is fixedly connected to an extrusion plate on one side close to the supporting plate; the extrusion plate is composed of a plurality of folding plates, and each folding plate is connected by a rotating shaft; when in use, the extrusion plate can play a role of pressing and positioning the hot melt adhesive template, and the extrusion plate is composed of a plurality of folding plates, and the staff can stretch the folding plate by pulling it, which is conducive to positioning the hot melt adhesive templates of different thicknesses, and has a wide range of applications.

[0016] Preferably, a rotating wheel is fixedly connected to the bottom of the deflection plate; the length of the rotating wheel is greater than the length of the deflection plate; a rotating shaft compatible with the rotating wheel is provided on the lower surface of the deflection plate; a rotating wheel is provided at the bottom of the deflection plate, and this rotating wheel can perform a certain rolling action on the cutting point of the hot melt adhesive, further squeeze out the burrs generated after cutting, and improve the die-cutting quality.

[0017] Preferably, a plurality of sweeping plates are fixedly connected to the outer surface of the rotating wheel; the plurality of sweeping plates are arranged in a circular array on the bottom side of the outer surface of the rotating wheel; the shape of the sweeping plates is arc-shaped; a sweeping plate is arranged on the outer surface of the rotating wheel so that when the deflection plate rotates, the sweeping plate cleans the tool of the die-cutting knife seat, so that the colloid generated by the cutting is removed as soon as possible, thereby facilitating the cutting of the hot melt adhesive template.

[0018] Preferably, a buffer spring is fixedly connected to the outer surface of the elastic pressure rod; the outer surface of the elastic pressure rod is provided with an assembly seat adapted to the die-cutting knife seat; the buffer spring is provided to play a certain buffering role, thereby improving the flexibility of the die-cutting knife seat in cutting the hot melt adhesive template.

[0019] The beneficial effects of the present invention are as follows:

[0020] 1. The die-cutting device for hot melt adhesive for mobile phone display screens described in the present invention has a U-shaped blade shape through the die-cutting knife seat. When it cuts the hot melt adhesive template, the die-cutting knives on both sides of the U shape will press against its surface, which can not only cut out the required shape and size, but also under the action of the die-cutting knives on both sides, it can play a certain pressing and positioning role on the hot melt adhesive with higher plasticity, reduce the problem of relative displacement of the hot melt adhesive template during the die-cutting process due to its large deformation, which is beneficial to the subsequent production of mobile phone display screens.

[0021] 2. The present invention relates to a die-cutting device for hot melt adhesive for mobile phone display screens. During the movement of the push column, the arc-shaped convex seat on its surface will contact and press against the arc rod, so that the arc rod drives the support plate to move toward the side close to the die-cutting knife seat, so that the support plate assists in pressing the hot melt adhesive template, acts as an auxiliary platform, and facilitates the die-cutting of the hot melt adhesive template.

[0022] 3. The die-cutting device for hot melt adhesive for mobile phone display screens described in the present invention, when the die-cutting knife seat cuts the hot melt adhesive template through the cutting groove, the die-cutting knife seat will first contact the deflection plate on one side of the connecting seat and squeeze it, so that the deflection plate compresses the elastic rod to rotate at a certain angle. After one cutting is completed, the elastic rod recovers and drives the deflection plate to press against the cutting and separation part of the hot melt adhesive template, so that the burrs formed by die-cutting are promptly integrated into the surface melt adhesive film, thereby improving the die-cutting quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] The present invention will be further described below in conjunction with the accompanying drawings.

[0024] Figure 1 is a stereogram of the present invention;

[0025] Figure 2 It is a partial structural schematic diagram of the support frame of the present invention;

[0026] Figure 3 It is a partial structural schematic diagram of the connection frame of the present invention;

[0027] Figure 4 It is a schematic diagram of the structure of the magnetic ejector rod of the present invention;

[0028] Figure 5 The present invention Figure 4 A magnified view of the structure at A;

[0029] Figure 6 It is a schematic diagram of the structure of the supporting plate part in the present invention;

[0030] Figure 7 It is a schematic diagram of the structure of the deflection plate in the present invention;

[0031] Figure 8It is a schematic diagram of the structure of a buffer spring in the second embodiment of the present invention.

[0032] In the figure: 1. die-cutting seat; 2. transmission seat; 3. support frame; 31. cam; 32. mounting plate; 33. die-cutting knife seat; 321. elastic pressure rod; 4. connecting frame; 5. magnetic push rod; 6. magnetic seat; 7. compression spring; 8. push column; 81. limit plate; 82. arc rod; 9. supporting plate; 83. limit groove; 91. cutting groove; 10. moving wheel; 11. heat conducting member; 12. connecting seat; 13. deflection plate; 14. elastic rod; 15. extrusion plate; 16. rotating wheel; 17. sweeping plate; 18. buffer spring. DETAILED DESCRIPTION

[0033] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further explained below in conjunction with specific implementation methods.

[0034] Embodiment 1

[0035] like Figure 1 to Figure 2As shown, a die-cutting device for hot melt adhesive for mobile phone display screens according to an embodiment of the present invention comprises a die-cutting seat 1; a transmission seat 2 is fixedly connected to the upper surface of the die-cutting seat 1; the transmission seat 2 is composed of a plurality of transmission wheels, and the plurality of transmission wheels are connected by belts; a support frame 3 is fixedly connected to the middle side of the upper surface of the transmission seat 2; a cam 31 is rotatably connected to the middle part of the upper surface of the support frame 3; a mounting plate 32 is fixedly connected to the surface of the support frame 3; an elastic pressure rod 321 is slidably connected to the inside of the mounting plate 32; the elastic The bottom end of the elastic pressure rod 321 is fixedly connected to the die-cutting knife seat 33; the die-cutting knife seat 33 is in a U-shape; a groove adapted to the elastic pressure rod 321 is provided inside the mounting plate 32; the die-cutting knife seat 33 and the transmission seat 2 are arranged on the same vertical line; it should be noted that the cam 31 is connected to the output end of the external motor; since hot melt adhesive is a material with high plasticity, and its deformation is relatively complex and the deformation degree is relatively large, during the die-cutting process of the die-cutting knife, when the cutter and the hot melt adhesive template come into contact with each other, the hot melt adhesive itself is affected by the characteristics of the hot melt adhesive. The problem of relative offset between the supporting platform and the hot melt adhesive die-cutting will be caused by the influence of the property. When the present die-cutting device is used, when the hot melt adhesive is die-cutting, the hot melt adhesive template is horizontally placed on the upper surface of the transmission seat 2, and the transmission wheel on the upper surface of the transmission seat 2 is driven by the driving motor to rotate, so that the transmission wheel drives the hot melt adhesive template on its surface to move, and at the same time, the cam 31 is driven by the motor to rotate. During the rotation process, the cam 31 will indirectly squeeze the elastic pressure rod 321, and the elastic pressure rod 321 drives the die-cutting knife seat 33 to move downward, and then the die-cutting The die-cutting knife on the surface of the knife seat 33 will cut the hot melt adhesive template on the surface of the transmission seat 2. Since the die-cutting knife seat 33 is in the shape of a U-shaped blade, when it cuts the hot melt adhesive template, the die-cutting knives on both sides of the U shape will press against its surface, which can not only cut out the required shape and size, but also under the action of the die-cutting knives on both sides, it can play a certain pressing and positioning role on the hot melt adhesive with higher plasticity, reducing the problem of relative offset of the hot melt adhesive template during the die-cutting process due to its large deformation, which is beneficial to the subsequent production of mobile phone display screens.

[0036] The outer surface of the transmission seat 2 is fixedly connected to a connecting frame 4; there are two connecting frames 4, which are symmetrically arranged; each connecting frame 4 is slidably connected to a magnetic push rod 5; the outer surface of the die-cutting knife seat 33 is fixedly connected to a magnetic seat 6; it should be noted that the magnetic seat 6 and the magnetic push rod 5 have the same magnetic properties. According to the principle of like charges repel each other, when the die-cutting knife seat 33 drives the magnetic seat 6 to move downward, the magnetic push rods 5 on both sides are subject to repulsive force and will move to the side close to the hot melt adhesive template, so that the magnetic push rod 5 can further position the hot melt adhesive template, thereby reducing the problem of relative displacement during the die-cutting process.

[0037] like Figures 2 to 3As shown, the outer surface of each magnetic push rod 5 is fixedly connected to a compression spring 7; the diameter of the compression spring 7 is larger than the diameter of the magnetic push rod 5; when working, during the movement of the magnetic push rod 5, the magnetic push rod 5 will simultaneously compress the spring 7 to move, and at this time, the elastic force of the compression spring 7 assists in stamping and cutting, which can improve the die-cutting flexibility of this device for the hot melt adhesive template.

[0038] like Figures 3 to 5 As shown, the lower surface of each magnetic push rod 5 is fixedly connected to a push column 8; the lower surface of the transmission seat 2 is fixedly connected to a limiting plate 81; the upper surface of the limiting plate 81 is slidably connected to a supporting plate 9; the lower surface of the supporting plate 9 is fixedly connected to an arc rod 82 on the side close to the push column 8; the shape of the push column 8 on the side close to the arc rod 82 is an arc; when working, during the movement of the magnetic push rod 5, the magnetic push rod 5 will simultaneously drive the push column 8 to move, and during the movement of the push column 8, the arc-shaped convex seat on its surface will contact and press against the arc rod 82, so that the arc rod 82 drives the supporting plate 9 to move to the side close to the die-cutting knife seat 33, so that the supporting plate 9 assists in pressing the hot melt adhesive template, acts as an auxiliary platform, and thus facilitates the die-cutting of the hot melt adhesive template.

[0039] The upper surface of the limiting plate 81 is provided with a limiting groove 83; the lower surface of the supporting plate 9 is slidably connected to the inside of the limiting groove 83 through a connecting rod, and the shape of the connecting rod is adapted to the shape of the limiting groove 83; a connecting rod is arranged below the supporting plate 9, and the connecting rod is slidably connected to the inside of the limiting groove 83, which is beneficial to limit the position of the supporting plate 9, so that the supporting plate 9 and the die-cutting knife seat 33 are always in the same vertical plane, which is convenient for the die-cutting knife seat 33 to cut out hot-melt adhesive bodies of equal specifications.

[0040] like Figures 4 to 6 As shown: a notch 91 is provided on the upper surface of the support plate 9; there are two notch grooves 91, which are symmetrically arranged; the shape of the notch groove 91 is compatible with the shape of the die-cutting knife seat 33; the notch groove 91 and the die-cutting knife seat 33 are on the same vertical plane; the support plate 9 is arranged below the transmission seat 2; when working, when the die-cutting knife seat 33 is pressed into the hot melt adhesive template, under the action of the matching notch groove 91, it is possible to facilitate the precise die-cutting of the hot melt adhesive template, so that the die-cutting knife seat 33 and the hot melt adhesive template are evenly pressed, which is beneficial to the production of mobile phone display screens.

[0041] The upper surface of each support plate 9 is rotatably connected to a moving wheel 10; a plurality of moving wheels 10 are provided, and are arranged in a linear array on the upper surface of the support plate 9; a heat conductor 11 is fixedly connected to the outer surface of the moving wheel 10; the heat conductor 11 is connected to an external power line via an electric heating wire; when working, the heat conductor 11 is heated by the electric heating wire and transmitted to the surface of the hot melt adhesive template through the moving wheel 10, so that a sol film is formed on its surface, which facilitates the upper die-cutting knife seat 33 to be pressed into the hot melt adhesive template, reduces the knife marks formed on its surface due to excessive hardness, and cooperates with the rotation of the moving wheel 10 to facilitate the transportation of the hot melt adhesive template.

[0042] It should be noted that in the embodiment of the present invention, the temperature of the heat conductor 11 needs to be controlled by a heating wire so that the hot melt adhesive template is heated to produce a micro-melting effect, ensuring that it will not produce internal deformation and local softening and plasticization when heated.

[0043] like Figures 4 to 7 As shown, a connecting seat 12 is fixedly connected to the upper surface of the supporting plate 9 and close to one side of the incision groove 91; the number of the connecting seats 12 is two, and they are respectively arranged on one side of the two incision grooves 91; the outer surface of the connecting seat 12 is rotatably connected to a deflection plate 13; the surface of the deflection plate 13 is fixedly connected to an elastic rod 14; the elastic rod 14 is connected to the outer surface of the connecting seat 12 on the side away from the deflection plate 13; when working, when the die-cutting knife seat 33 cuts the hot melt adhesive template through the incision groove 91, the die-cutting knife seat 33 will first contact the deflection plate 13 on one side of the connecting seat 12 and squeeze it, so that the deflection plate 13 compresses the elastic rod 14 and rotates at a certain angle. After one cutting is completed, the elastic rod 14 returns and drives the deflection plate 13 to press against the cutting and separation part of the hot melt adhesive template, so that the burrs formed by die-cutting are promptly integrated into the surface melt adhesive film, thereby improving the die-cutting quality.

[0044] The magnetic push rod 5 is fixedly connected to a squeeze plate 15 on one side close to the supporting plate 9; the squeeze plate 15 is composed of a plurality of folding plates, and each folding plate is connected by a rotating shaft; when in use, the squeeze plate 15 can press and position the hot melt adhesive template, and the squeeze plate 15 is composed of a plurality of folding plates, and the staff can stretch the folding plate by pulling it, which is beneficial to position the hot melt adhesive templates of different thicknesses, and has a wide range of applications.

[0045] A rotating wheel 16 is fixedly connected to the bottom of the deflection plate 13; the length of the rotating wheel 16 is greater than the length of the deflection plate 13; a rotating shaft matched with the rotating wheel 16 is provided on the lower surface of the deflection plate 13; a rotating wheel 16 is provided at the bottom of the deflection plate 13, and the rotating wheel 16 can perform a certain rolling action on the cutting part of the hot melt adhesive, further squeeze out the burrs generated after cutting, and improve the die-cutting quality.

[0046] A plurality of sweeping plates 17 are fixedly connected to the outer surface of the rotating wheel 16; the plurality of sweeping plates 17 are arranged in a circular array on the bottom side of the outer surface of the rotating wheel 16; the sweeping plates 17 are arc-shaped; the sweeping plates 17 are arranged on the outer surface of the rotating wheel 16, so that when the deflection plate 13 rotates, the sweeping plates 17 clean the cutter of the die-cutting knife seat 33, so that the colloid generated by the cutting is removed as soon as possible, which is convenient for cutting the hot melt adhesive template.

[0047] Embodiment 2

[0048] like Figure 8 As shown, compared with Example 1, another implementation of the present invention is: the outer surface of the elastic pressure rod 321 is fixedly connected to a buffer spring 18; the outer surface of the elastic pressure rod 321 is provided with an assembly seat adapted to the die-cutting knife seat 33; the buffer spring 18 is provided, which can play a certain buffering role and improve the flexibility of the die-cutting knife seat 33 in cutting the hot melt adhesive template.

[0049] During operation, when the hot melt adhesive is die-cut, the hot melt adhesive template is placed horizontally on the upper surface of the transmission seat 2, and the transmission wheel on the upper surface of the transmission seat 2 is driven by the driving motor to rotate, so that the transmission wheel drives the hot melt adhesive template on its surface to move, and the cam 31 is driven by the motor to rotate. The cam 31 will indirectly squeeze the elastic pressure rod 321 during the rotation process, and the elastic pressure rod 321 drives the die-cutting knife seat 33 to move downward, and then the die-cutting knife on the surface of the die-cutting knife seat 33 will cut the hot melt adhesive template on the surface of the transmission seat 2. Since the die-cutting knife seat 33 is in the shape of a U-shaped blade, when it cuts the hot melt adhesive template, the die-cutting knives on both sides of the U shape will press against its surface, which can not only cut out the required shape and size, but also Under the action of the die-cutting knives on both sides, the hot-melt adhesive with high plasticity can be pressed and positioned to a certain extent, reducing the problem of relative displacement of the hot-melt adhesive template during the die-cutting process due to its large deformation, which is beneficial to the subsequent production of mobile phone display screens; when the die-cutting knife seat 33 drives the magnetic seat 6 to move downward, the magnetic ejector rods 5 on both sides are subjected to repulsive force and will move toward the side close to the hot-melt adhesive template, so that the magnetic ejector rods 5 can further position the hot-melt adhesive template, thereby reducing the problem of relative displacement during the die-cutting process; during the movement of the magnetic ejector rod 5, the magnetic ejector rod 5 will compress the spring 7 to move at the same time, and at this time, with the elastic force of the compression spring 7 assisting in stamping and cutting, the die-cutting flexibility of this device for the hot-melt adhesive template can be improved;

[0050] During the movement of the magnetic push rod 5, the magnetic push rod 5 will simultaneously drive the push column 8 to move. During the movement of the push column 8, the arc-shaped convex seat on its surface will contact and press against the arc rod 82, so that the arc rod 82 drives the support plate 9 to move toward the side close to the die-cutting knife seat 33, so that the support plate 9 assists in pressing the hot-melt adhesive template, plays the role of an auxiliary platform, and thus facilitates the die-cutting of the hot-melt adhesive template; a connecting rod is provided under the support plate 9, and the connecting rod is slidably connected to the inside of the limiting groove 83, which is conducive to limiting the position of the support plate 9, so that the support plate 9 The die-cutting knife seat 33 is always on the same vertical plane, which is convenient for the die-cutting knife seat 33 to cut out hot-melt adhesive bodies of equal specifications; when the die-cutting knife seat 33 is pressed into the hot-melt adhesive template, under the action of the matching incision groove 91, it is convenient to accurately die-cut the hot-melt adhesive template, so that the die-cutting knife seat 33 and the hot-melt adhesive template are evenly pressed, which is beneficial to the production of mobile phone display screens; the heat-conducting member 11 is heated by the electric heating wire, and is transmitted to the surface of the hot-melt adhesive template through the moving wheel 10, so that a sol film is formed on its surface, which is convenient for the upper die-cutting knife seat 33 to be pressed into the hot-melt adhesive template, reducing The surface of the hot melt adhesive template is low in hardness and knife marks are formed, and the hot melt adhesive template can be easily transported in conjunction with the rotation of the moving wheel 10; when the die-cutting knife seat 33 cuts the hot melt adhesive template through the cutting groove 91, the die-cutting knife seat 33 will first contact the deflection plate 13 on one side of the connecting seat 12 and squeeze it, so that the deflection plate 13 compresses the elastic rod 14 to rotate at a certain angle. After one cutting is completed, the elastic rod 14 returns and drives the deflection plate 13 to press against the cutting and separation of the hot melt adhesive template, so that the burrs formed by die-cutting are promptly integrated into the surface melt adhesive film, thereby improving the die-cutting quality A rotating wheel 16 is provided at the bottom of the deflection plate 13, and the rotating wheel 16 can perform a certain rolling action on the cutting part of the hot melt adhesive, further squeeze out the burrs generated after cutting, and improve the die-cutting quality; a sweeping plate 17 is provided on the outer surface of the rotating wheel 16, so that when the deflection plate 13 rotates, the sweeping plate 17 cleans the tool of the die-cutting knife seat 33, so that the colloid generated by the cutting can be removed as soon as possible, which is convenient for cutting the hot melt adhesive template; a buffer spring 18 is provided, which can play a certain buffering role, and improves the flexibility of the die-cutting knife seat 33 in cutting the hot melt adhesive template.

[0051] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the scope of protection of the present invention.

[0052] It should also be noted that, unless otherwise clearly specified and limited, the terms "set", "install", "connect", and "connect" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0053] The above shows and describes the basic principles, main features and advantages of the present invention. It should be understood by those skilled in the art that the present invention is not limited to the above embodiments. The above embodiments and descriptions are only for explaining the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. A die-cutting device for hot melt adhesive for mobile phone display screens, comprising a die-cutting seat (1); characterized in that: The upper surface of the die-cutting seat (1) is fixedly connected to a transmission seat (2); the transmission seat (2) is composed of a plurality of transmission wheels, and the plurality of transmission wheels are connected by belts; the upper surface of the transmission seat (2) is fixedly connected to a support frame (3) on the middle side; the middle part of the upper surface of the support frame (3) is rotatably connected to a cam (31); the surface of the support frame (3) is fixedly connected to a mounting plate (32); the interior of the mounting plate (32) is slidably connected to an elastic pressure rod (321); the bottom end of the elastic pressure rod (321) is fixedly connected to a die-cutting knife seat (33); the die-cutting knife seat (33) is U-shaped; a groove matching the elastic pressure rod (321) is provided inside the mounting plate (32); the die-cutting knife seat (33) and the transmission seat (2) are arranged on the same vertical line; The outer surface of the transmission seat (2) is fixedly connected to a connection frame (4); the number of the connection frames (4) is two and they are symmetrically arranged; the interior of each connection frame (4) is slidably connected to a magnetic ejector rod (5); the outer surface of the die-cutting knife seat (33) is fixedly connected to a magnetic seat (6); A compression spring (7) is fixedly connected to the outer surface of each magnetic push rod (5); the diameter of the compression spring (7) is larger than the diameter of the magnetic push rod (5); The lower surface of each magnetic push rod (5) is fixedly connected to a push column (8); the lower surface of the transmission seat (2) is fixedly connected to a limit plate (81); the upper surface of the limit plate (81) is slidably connected to a support plate (9); the lower surface of the support plate (9) is fixedly connected to an arc rod (82) on one side close to the push column (8); the shape of the push column (8) on one side close to the arc rod (82) is an arc.

2. The die-cutting device for hot melt adhesive for mobile phone display screen according to claim 1, characterized in that: The upper surface of the limiting plate (81) is provided with a limiting groove (83); the lower surface of the supporting plate (9) is slidably connected to the inside of the limiting groove (83) via a connecting rod, and the shape of the connecting rod is adapted to the shape of the limiting groove (83).

3. The die-cutting device for hot melt adhesive for mobile phone display screen according to claim 1, characterized in that: The upper surface of the support plate (9) is provided with a notch groove (91); the number of the notch grooves (91) is two and they are symmetrically arranged; the shape of the notch groove (91) matches the shape of the die-cutting knife seat (33); the notch groove (91) and the die-cutting knife seat (33) are located on the same vertical plane; the support plate (9) is arranged below the transmission seat (2).

4. The die-cutting device for hot melt adhesive for mobile phone display screen according to claim 3, characterized in that: The upper surface of each support plate (9) is rotatably connected to a moving wheel (10); a plurality of the moving wheels (10) are provided, and are arranged in a linear array on the upper surface of the support plate (9); the outer surface of the moving wheel (10) is fixedly connected to a heat conducting member (11); the heat conducting member (11) is connected to an external power supply line via an electric heating wire.

5. The die-cutting device for hot melt adhesive for mobile phone display screen according to claim 4, characterized in that: A connecting seat (12) is fixedly connected to the upper surface of the supporting plate (9) and on a side close to the notch (91); the connecting seats (12) are two in number and are respectively arranged on one side of two notch slots (91); a deflection plate (13) is rotatably connected to the outer surface of the connecting seat (12); an elastic rod (14) is fixedly connected to the surface of the deflection plate (13); and a side of the elastic rod (14) away from the deflection plate (13) is connected to the outer surface of the connecting seat (12).

6. The die-cutting device for hot melt adhesive for mobile phone display screen according to claim 1, characterized in that: A pressing plate (15) is fixedly connected to one side of the magnetic push rod (5) close to the supporting plate (9); the pressing plate (15) is composed of a plurality of folding plates, and each folding plate is connected via a rotating shaft.

7. The die-cutting device for hot melt adhesive for mobile phone display screen according to claim 5, characterized in that: A rotating wheel (16) is fixedly connected to the bottom of the deflection plate (13); the length of the rotating wheel (16) is greater than the length of the deflection plate (13); and a rotating shaft matching the rotating wheel (16) is provided on the lower surface of the deflection plate (13).

8. The die-cutting device for hot melt adhesive for mobile phone display screen according to claim 7, characterized in that: A plurality of sweeping plates (17) are fixedly connected to the outer surface of the rotating wheel (16); the plurality of sweeping plates (17) are arranged in a circular array on the bottom side of the outer surface of the rotating wheel (16); and the sweeping plates (17) are arc-shaped.

9. The die-cutting device for hot melt adhesive for mobile phone display screen according to claim 1, characterized in that: The outer surface of the elastic pressure rod (321) is fixedly connected to a buffer spring (18); and the outer surface of the elastic pressure rod (321) is provided with an assembly seat adapted to the die-cutting knife seat (33).

Images