Stripping device and gold stamping process

Abstract

According to the stripping device and the gold stamping technology, a static platform and a movable platform move relatively and are used for conducting gold stamping on paper materials, a tooth row comprises a tooth row body, a plurality of tooth pieces are distributed on the tooth row body at intervals, and the tooth pieces clamp the paper materials and are used for transferring the paper materials between a non-gold stamping area and a gold stamping area. The blowing nozzle assembly is located on one side of the gold stamping area, the blowing nozzle assembly is fixed to a preset position, the blowing nozzle assembly does not interfere with the gripper bar to transfer paper materials, a stripping gap between the foil to be stripped and the paper materials is adjacent to the blowing end of the blowing nozzle assembly, and the gripper bar is located below the blowing nozzle assembly. The air blowing end of the air blowing nozzle assembly can spray out compressed air, and the compressed air is used for blowing and stripping foil materials and paper materials. According to the stripping device, pressurized airflow can be blown to the whole gold stamping breadth through the fixed air blowing nozzle assembly, and stripping of paper materials and foil materials is achieved.

Description

Technical Field

[0001] The invention belongs to the field of hot stamping equipment, and in particular relates to a stripping device and a hot stamping process. Background Art

[0002] In existing hot stamping equipment, especially high-speed hot stamping equipment, foil is stamped onto the surface of paper material through the hot stamping platform, and then the foil and paper material need to be peeled off before the paper material can be transported to the next process. In order to better achieve the peeling of foil (electrochemical aluminum) and paper material, a blowing mechanism is usually used. When the tooth bar runs to the hot stamping area of ​​​​the hot stamping, the blowing mechanism blows air into the gap between the paper material and the foil to achieve the peeling of the foil and the paper material. The peeled foil is called waste. When the airflow position of the blowing nozzle of the blowing mechanism is close to the lower surface of the foil, the airflow at this time is approximately parallel to the middle gap between the paper material and the foil. The blowing peeling effect is the best at this time. The blowing nozzle here blows out a pressurized airflow.

[0003] Among the existing hot stamping equipment, one is Figure 5-Figure 11 The "rotating tooth opening" tooth bar structure shown in the figure is usually used in high-speed hot stamping equipment, but due to the limitation of the rotary structure, the thickness direction of the overall tooth bar is relatively high. When the blowing nozzle of the blowing mechanism blows air, the blowing mechanism and the tooth bar will collide due to the position of the tooth bar and the structure of the tooth bar itself, or the high thickness of the tooth bar itself will block the blowing of the blowing nozzle, so that the air flow cannot pass smoothly between the paper material and the foil material, causing the foil and the paper material to be unable to be completely separated, affecting the hot stamping effect.

[0004] Two technologies are commonly used in the prior art: one is a "fixed" blowing mechanism, which is fixed away from the paper material input direction and outside the hot stamping platform. When the tooth bar moves to the hot stamping area, the blowing mechanism is located at the rear of the tooth bar. Because the blowing mechanism itself is far away from the hot stamping platform, the strength of the blown air flow will weaken as the distance increases. In order to ensure that the gas of the blowing mechanism can be blown between the paper material and the foil and peel the two apart, a thinner tooth bar must be selected. A thin tooth bar can only be used for hot stamping machines with low speeds and cannot meet high-speed requirements. The rotary tooth opening mentioned in the previous paragraph will block the blowing of the blowing mechanism nozzle due to the thick thickness of the tooth bar, and the air flow cannot be completely and directly blown into the foil and paper material. The other is a "non-fixed" blowing mechanism. When the tooth bar moves to the hot stamping area, the blowing mechanism avoids the tooth bar body by swinging or moving the structure, so that the blowing nozzle can be as close as possible to the gap between the foil and the paper material to complete the blowing. However, this structure is complex, and the coordination between the tooth bar and the mobile / swinging tooth bar must be very precise, and the requirements for the overall mechanism are very high. When the equipment is running at high speed, the tooth bar stays for a very short time, and the mobile / swinging blowing mechanism is at risk of colliding with the tooth bar body. Summary of the invention

[0005] In view of this, the present invention aims to propose a peeling device to solve the problem that when the rotating tooth bar in the prior art is applied to the hot stamping process, the air supply is not smooth when the foil and paper material to be peeled off after hot stamping are air-blown and peeled off; if a moving / swinging blowing mechanism is used, the movement of the tooth bar body and the blowing mechanism will interfere with each other, resulting in the risk of collision.

[0006] To achieve the above object, the technical solution of the present invention is achieved as follows:

[0007] A stripping device, a device with a hot stamping function, a static platform and a dynamic platform that move relative to each other are arranged opposite to each other, and is used for hot stamping paper materials. A tooth bar includes a tooth bar body 7, and a plurality of tooth pieces 71 that can clamp the paper materials are distributed at intervals on the tooth bar body 7. The paper materials are transferred between a non-hot stamping area 13 and a hot stamping area 12 through the tooth bar. When the paper materials are located in the hot stamping area, an air blowing nozzle assembly is located on one side of the hot stamping area, and the air blowing nozzle assembly is fixed at a preset position. The air blowing nozzle assembly does not interfere with the transportation of the paper materials by the tooth bar. The stripping gap between the foil material to be stripped and the paper material is adjacent to the blowing end of the air blowing nozzle assembly. The tooth bar is located below the air blowing nozzle assembly, and the blowing end of the air blowing nozzle assembly can spray compressed gas, and the compressed gas is used to blow and strip the foil material and the paper material.

[0008] Furthermore, a tooth bar lifting structure is installed on one side of the moving platform, and the tooth bar lifting structure can be linked with the moving platform. When the tooth bar drives the paper material through the hot stamping area, the tooth bar lifting structure linked with the moving platform is used to lift the tooth bar, so that the tooth bar approaches and avoids the blowing nozzle assembly, and the blowing end of the blowing nozzle assembly is close to the upper surface of the paper material and the peeling gap.

[0009] Furthermore, the moving platform is a lower platform.

[0010] Furthermore, the air blowing nozzle assembly includes a plurality of first air blowing nozzles, and an avoidance gap is provided between each of the first air blowing nozzles, and the avoidance gap is used to avoid the tooth pieces of the tooth row.

[0011] Furthermore, the blowing nozzle assembly further includes a plurality of second blowing nozzles, and the second blowing nozzles do not interfere with the first blowing nozzles. When the tooth row drives the paper material to be stamped in the hot stamping area, the blowing end of the second blowing nozzle is located above the clamping end of the tooth sheet, and the blowing end of the first blowing nozzle is located between two adjacent tooth sheets.

[0012] Furthermore, the first air blowing nozzle and the second air blowing nozzle share the same air inlet cavity for air intake, and switch valves are respectively installed on the first air blowing nozzle and the second air blowing nozzle.

[0013] Furthermore, the second blowing nozzle is a curved blowing nozzle, which is used to avoid interference with the movement trajectory of the tooth piece, and a side of the curved blowing nozzle close to the tooth row body is provided with an avoidance arc.

[0014] Furthermore, the first blowing nozzle sprays compressed gas along the upper surface of the paper material.

[0015] Furthermore, an angle is provided between the direction of the compressed gas sprayed from the second blowing nozzle and the upper surface of the paper material.

[0016] Furthermore, a cylinder is installed on one side of the first blowing nozzle, and the cylinder is fixedly installed on the wall panel, and the movable end of the cylinder can push the mounting plate connected to the first blowing nozzle and the second blowing nozzle, and an air intake cavity is arranged inside the mounting plate, and the first blowing nozzle and the second blowing nozzle are connected to the air intake cavity, and the cylinder drives the first blowing nozzle and the second blowing nozzle to approach or move away from the hot stamping area.

[0017] Furthermore, the movable platform is a lower platform, the tooth bar lifting structure includes a slide rod, a linkage component driving the slide rod to move is arranged at the bottom of the slide rod, and the top of the slide rod is used to lift the tooth bar body;

[0018] Furthermore, the linkage assembly includes a cam structure, one end of the cam structure is linked to the moving platform, and the moving platform drives the slide rod to slide up and down through the cam structure, and the upper end of the slide rod that slides up and down contacts the lower side of the tooth row.

[0019] Furthermore, a slide block is installed at the preset fixed position, a slide hole is provided in the middle of the slide block, a slide rod is installed in the slide hole, one end of the slide rod abuts against the cam structure, and the other end of the slide rod contacts the lower side of the tooth row;

[0020] Furthermore, the cam structure includes a connecting rod and a cam member, one end of the sliding rod abuts against the middle of the connecting rod, one end of the connecting rod is sleeved on the contact member, the contact member is fixedly connected to the lower platform, the other end of the connecting rod contacts the periphery of the cam member, and the cam member is fixedly installed to a preset position;

[0021] Furthermore, one end of the connecting rod is rotatably sleeved with a roller, and the periphery of the roller is rollingly connected to the periphery of the cam member;

[0022] Furthermore, an arc groove is provided on one side of the cam member, and the arc groove is used to limit the displacement trajectory of the roller so as to drive the slide bar to move up and down.

[0023] Furthermore, one side of the slide bar is connected to a preset fixed position via an elastic member, and the elastic member is used for rapid resetting of the slide bar.

[0024] Another object of the present invention is to provide a hot stamping process to solve the problem that in the prior art hot stamping process, the movement of the tooth row and the air inlet nozzle will interfere with each other and there is a risk of collision.

[0025] To achieve the above object, the technical solution of the present invention is achieved as follows:

[0026] A hot stamping process, when the tooth bar drives the paper material through the hot stamping area, the relatively moving platform can lift the tooth bar in a linked manner, so that the tooth bar approaches and avoids the blowing nozzle assembly used for blowing air. At this time, the blowing end of the blowing nozzle assembly approaches the peeling gap between the foil material to be peeled off and the paper material, and the paper material and the foil are peeled off by blowing air.

[0027] Furthermore, the blowing airflow is provided with at least two blowing angles, which are respectively a horizontal blowing airflow and a blowing airflow at an inclined angle to the paper material. The airflow diffusion areas blown out at different blowing angles intersect and are blown into the peeling gap between the paper material and the foil material to complete the peeling.

[0028] Furthermore, the hot stamping process comprises the following steps:

[0029] S1, the foil is hung on one side of the hot stamping structure through the feeding roller, and then one end of the foil passes through the hot stamping structure and is connected to the receiving roller;

[0030] S2, clamping the paper material by the teeth bar and moving it horizontally close to the hot stamping structure;

[0031] S3, the tooth bar is intermittently running around the gilding structure, and the intermittent movement of the tooth bar corresponds to the opening and closing movement of the moving platform of the gilding structure;

[0032] S4, when the moving platform is relatively opened, the teeth row clamps the paper material into or passes through the space between the static platform and the moving platform; when the static platform and the moving platform are closed, the foil material is hot stamped on the paper material to complete the hot stamping action;

[0033] S5, in step S4, when the gripper bar clamps the paper material through the hot stamping area, the relatively moving platform can lift the gripper bar in a linked manner, so that the gripper bar approaches and avoids the air blowing nozzle assembly for blowing, and the gap between the foil material and the paper material is blown and peeled by the air blowing nozzle assembly;

[0034] S6. As the movable platform opens relatively, the teeth bar clamps the paper material that has been stamped away from the stamping structure, the feeding roller discharges the foil material, and the receiving roller winds the used foil material.

[0035] Furthermore, in step S4, during the hot stamping process after the static platform and the dynamic platform are closed, the tooth row is stopped;

[0036] Furthermore, the movable platform is the lower platform, and when the upper platform and the lower platform are relatively opened, the blowing end of the blowing nozzle assembly is away from the upper surface of the material paper; when the upper platform and the movable platform are closed, the blowing end of the blowing nozzle assembly is close to the upper surface of the material paper;

[0037] Furthermore, a conveying platform and a paper collecting device are respectively arranged on both sides of the hot stamping structure, and the gripper bar can clamp the paper material on the conveying platform, pass through the hot stamping structure to complete the hot stamping, and then convey and lower it to the paper collecting device;

[0038] Furthermore, both ends of the tooth bar body are fixedly connected to a chain respectively, and the two chains are arranged parallel to each other, each chain is engaged with a sprocket, and the sprocket is rotated by a drive motor, and the drive motor and the sprocket are installed on a frame or other fixed position;

[0039] Furthermore, the plurality of tooth row bodies are evenly distributed around the chain at equal distances.

[0040] Compared with the prior art, the stripping device described in the present invention has the following beneficial effects:

[0041] (1) When the hot stamping equipment is working normally, the stripping device described in the present invention can evenly and directionally distribute the pressurized airflow over the hot stamping surface of the paper material through the fixed air blowing nozzle assembly, thereby achieving the stripping of the paper material and the foil material.

[0042] (2) The blowing nozzle assembly is composed of a plurality of "curved blowing nozzles" and "straight blowing nozzles" in a row. The curved blowing nozzle can be 3D printed, but is not limited to the 3D printing form, and can be any curved surface that can be processed.

[0043] (3) The stripping device described in the present invention has two types of nozzles. The first type is a "straight-blowing nozzle" which is located between each tooth piece and can blow out a nearly horizontal airflow. The second type is a "curved-surface nozzle" which is located above each tooth piece and can blow out an airflow with an inclined angle to the paper material.

[0044] The blowing angles of the two structures of the blowing nozzles are different, and the height of the blowing nozzles is coordinated to ensure the stability of the blowing airflow above the tooth bar body, and can cover a larger width of the tooth bar body, even the entire width, that is, it can blow the entire format of the paper material, ensuring that the airflow can pass through the entire hot stamping area.

[0045] (4) In the stripping device described in the present invention, the air blowing nozzle assembly and the tooth bar body are dynamically and precisely matched through the linked tooth bar lifting structure, so that the tooth bar body and the air blowing nozzle assembly cooperate to complete the blowing and stripping process of the foil. When the tooth bar body moves to the hot stamping area, the slider lifts and lowers the tooth bar body according to the designed curve, and it is necessary to ensure that the highest point of the tooth bar body and the lowest point of the curved blowing nozzle are aligned, and there is no collision or interference during the movement coordination process.

[0046] (5) In the stripping device described in the present invention, the power of the slider comes from the moving platform, or a power source with the same frequency as the moving platform. The installation form is wide and suitable for various working conditions.

[0047] (6) The stripping device described in the present invention can move the air blowing nozzle assembly forward and backward by pushing and pulling the air cylinder when the hot stamping equipment is stopped and the worker is replacing the foil or inserting the foil, thereby increasing the foil inserting space and making the operation more convenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0048] The accompanying drawings constituting a part of the present invention are used to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation of the present invention. In the accompanying drawings:

[0049] Figure 1 A schematic diagram of the distribution of the hot stamping area and the non-hot stamping area on the frame and a schematic diagram of the rotating tooth row according to an embodiment of the present invention;

[0050] Figure 2 It is a schematic diagram of a working state of a peeling device when the paper material according to an embodiment of the present invention is located in the hot stamping area;

[0051] Figure 3 It is a schematic diagram of the working state of a stripping device when the tooth bar body according to an embodiment of the present invention is located in the hot stamping area;

[0052] Figure 4 A schematic diagram of the displacement trajectory of the tooth bar body driven by the tooth bar lifting structure according to an embodiment of the present invention;

[0053] Figure 5 It is a top structural schematic diagram of the assembly position of the blowing nozzle assembly and the tooth row body according to an embodiment of the present invention;

[0054] Figure 6 This is a schematic structural diagram of a second air blowing nozzle according to an embodiment of the present invention;

[0055] Figure 7 It is a schematic structural diagram of the first blowing nozzle described in an embodiment of the present invention.

[0056] Figure 8 It is a schematic top view of the tooth bar body according to an embodiment of the present invention on the chain;

[0057] Fig. 9 A schematic diagram of the positions of the tooth row cavity and the lower tooth piece according to an embodiment of the present invention;

[0058] Fig.10 A schematic diagram of an upper tooth plate in an open state according to an embodiment of the present invention;

[0059] Fig.11 A schematic diagram of an upper tooth plate in an open state according to an embodiment of the present invention;

[0060] Fig.12 It is a schematic diagram of a tooth piece clamping a paper material according to an embodiment of the present invention.

[0061] Description of reference numerals:

[0062] 1. Wall panel; 2. Upper platform; 3. Lower platform; 4. Mounting plate; 5. Cylinder; 6. Blowing nozzle assembly; 61. First blowing nozzle; 62. Second blowing nozzle; 63. Switch valve; 7. Gripper body; 71. Gripper; 711-upper tooth piece; 712-lower tooth piece; 713-gripper cavity, 714-rotating arm, 715-rotating shaft, 716-chain; 717-machine wall; 718-lifting device; 719 - elastic element; 8, cam structure; 81, connecting rod; 82, cam member; 83, arc groove; 84, roller; 85, contact member; 9, slider; 91, slide bar; 10, hot stamping template; 11, foil; 12, hot stamping area; 13, non-hot stamping area; 14, peeling gap; 16, clamping end; 17, first position; 18, second position; 19, third position; 20, fourth position; 21, paper material. DETAILED DESCRIPTION

[0063] It should be noted that, in the absence of conflict, the embodiments of the present invention and the features in the embodiments may be combined with each other.

[0064] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions 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 cannot be understood as limiting the present invention. In addition, the terms "first", "second", and the like are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, features defined as "first", "second", and the like may explicitly or implicitly include one or more of the features. In the description of the present invention, unless otherwise specified, "multiple" means two or more.

[0065] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" 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 components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood by specific circumstances.

[0066] The present invention will be described in detail below with reference to the accompanying drawings and in conjunction with embodiments.

[0067] like Figure 1-7 As shown, a peeling device is provided, an upper platform 2 and a lower platform 3 are arranged opposite to each other on the frame of the hot stamping equipment, the upper platform 2 and the lower platform 3 can move relative to each other, and the upper platform 2 and the lower platform 3 that move relatively are the hot stamping structure of the paper material 21. In this embodiment, the upper platform 2 keeps the relative position fixed, and the lower platform 3 makes up and down reciprocating motion, that is, the lower platform 3 is a moving platform.

[0068] like Figure 8-12 As shown, a plurality of rotating gripper bars are arranged on the frame or other positions, and the movement mode of the rotating gripper bars clamping the material and rotating on the frame is the prior art, and the rotating gripper bars include a gripper bar body 7, and the two ends of the gripper bar body 7 are respectively fixedly connected to one side of a chain 716, and the two chains 716 are respectively distributed on both sides close to the machine wall 717, and each machine is equipped with a plurality of rotating gripper bars, and the plurality of gripper bar bodies are connected in series through two chains 716;

[0069] The tooth bar body includes a tooth bar cavity 713, and the two ends of the tooth bar cavity 713 are respectively fixedly connected to one side of a chain 716. A rotating shaft 715 is arranged on the tooth bar cavity 713, and a rotating arm 714 is respectively arranged at the two ends of the rotating shaft 715. An upper tooth piece 711 that can be opened and closed is installed on the rotating shaft 715. A lower tooth piece 712 is installed on the tooth bar cavity 713, and the upper tooth piece 711 corresponds to the lower tooth piece 712, and the lower tooth piece 712 does not interfere with the rotation of the rotating shaft 715 relative to the tooth bar cavity 713.

[0070] like Figure 8 As shown, a plurality of upper teeth pieces 711 are arranged on a rotating shaft 715, and an elastic element 719 is installed between the upper teeth piece 711 and the tooth row cavity 713, and the elastic element 719 can ensure that the upper teeth piece 711 can be quickly closed after being opened, as shown in FIG. Fig.10 The upper tooth piece 711 is shown in the open state. The lifting device 718 lifts the rotating arm 714 to drive the rotating shaft 715 to rotate clockwise. The upper tooth piece 711 on the rotating shaft 715 is opened around the rotating shaft 715 at the same time. The opening process of the upper tooth piece 711 is the process of accumulating force of the elastic element 719. Fig.11 The upper tooth piece 711 is shown in a closed state. The lifting device 718 lowers the rotating arm 714 to drive the rotating shaft 715 to rotate counterclockwise, and the upper tooth piece 711 on the rotating shaft 715 opens around the rotating shaft 715 at the same time. The opening process of the upper tooth piece 711 is the force exerted by the elastic element 719. Fig.12 The figure shows the state of the upper tooth piece 711 and the lower tooth piece 712 biting the paper material. The lower tooth piece 712 holds up the paper, and the upper tooth piece 711 presses the paper onto the lower tooth piece 712 through the force of the elastic element 719.

[0071] The sleeve sprocket is rotated on the frame or other fixed position, and several rotating tooth bars reciprocate in the inner circle of the hot stamping structure through the chain. The sprocket is rotated by the driving motor, and the chain and each tooth bar body 7 are synchronously driven to move around the frame in the circumferential direction. Each tooth bar body 7 clamps the paper material 21 through the tooth plate (upper tooth plate 711 and lower tooth plate 712), and is used for the transportation of the paper material 21 between the non-hot stamping area 13 and the hot stamping area 12. The blowing nozzle assembly 6 is fixedly installed on the frame, and the blowing nozzle assembly 6 does not interfere with the transportation of the paper material 21 by the tooth plate. The blowing nozzle assembly 6 is located on one side of the hot stamping area 12, and when When the paper material 21 is located in the hot stamping area 12, the blowing end of the blowing nozzle assembly 6 is close to the peeling gap 14 between the peeled foil and the paper material 21, the tooth row body 7 is located below the blowing nozzle assembly 6, and the blowing end can spray compressed gas, the compressed gas can be evenly and directionally spread over the surface of the paper material 21, and the compressed gas is used to blow the peeled foil and the paper material 21. When the hot stamping equipment is working normally, the fixed blowing nozzle assembly 6 is used, and the pressurized air flow can be blown to the entire hot stamping surface to achieve the peeling of the paper material and the foil 11. The installation form is simple and easy to operate.

[0072] A tooth row lifting structure is installed on one side of the moving platform. If the upper platform 2 is a moving platform, the tooth row lifting structure is installed on the upper platform 2. If the lower platform 3 is a moving platform, the tooth row lifting structure is installed on the lower platform 3. The lifting structure is linked with the moving platform. The tooth row lifting structure corresponds to the lifting position of the tooth row. The tooth row lifting structure installed on the upper platform 2 and the tooth row lifting structure installed on the lower platform 3 are arranged oppositely. The lifting structure can make the tooth row body 7 avoid the blowing nozzle of the blowing nozzle assembly 6, and the air outlet of the blowing nozzle is close to the surface of the paper material, blowing gas to the gap between the paper material and the gold foil, so that the paper material is separated from the foil 11. The moving platform here can be an upper platform or a lower platform, but the linkage is definitely linked with a moving platform. This embodiment The embodiment is installed on the lower platform 3, and the tooth bar lifting structure can be linked with the lower platform 3. When the tooth bar drives the paper material 21 to perform embossing and hot stamping in the hot stamping area 12, the tooth bar lifting structure linked with the moving platform is used to lift the tooth bar body 7, so that the tooth bar body 7 is close to and avoids the blowing nozzle assembly 6, and the blowing end of the blowing nozzle assembly 6 is close to the upper end surface of the paper material 21 and the peeling gap 14. The blowing nozzle assembly and the tooth bar are dynamically and precisely matched to achieve the cooperation between the tooth bar and the blowing nozzle assembly to complete the blowing and peeling foil process. When the tooth bar moves to the hot stamping area 12, the tooth bar is lifted and lowered according to a preset curve by the sliding rod 91. It is necessary to ensure that the highest point of the tooth bar and the lowest point of the curved blowing nozzle are aligned, and there is no collision or interference during the movement coordination process.

[0073] The air blowing nozzle assembly 6 includes a mounting plate 4 and a plurality of first air blowing nozzles 61 evenly distributed on one side thereof. The mounting plate 4 is mounted on the frame through a wall panel. An avoidance gap is provided between each pair of the first air blowing nozzles 61, and the avoidance gap is used to avoid the tooth piece 71. A plurality of second air blowing nozzles 62 are evenly distributed on one side of the mounting plate 4, and the second air blowing nozzles 62 are staggered with the first air blowing nozzles 61. The blowing end of the second air blowing nozzle 62 is located above the blowing end of the first air blowing nozzle 61, and when the tooth row drives the paper material 21 to perform embossing and hot stamping in the hot stamping area 12, the blowing end of the second air blowing nozzle 62 is located above the clamping end 16 of the tooth piece 71, and the blowing end of the first air blowing nozzle 61 is flush with the clamping end 16 of the tooth piece 71.

[0074] During implementation, the second blowing nozzle 62 is a curved nozzle, which is used to avoid interference with the movement trajectory of the tooth piece 71. The curved nozzle can be 3D printed, but is not limited to the 3D printing form, and can be in the form of any curved surface that can be processed. The first blowing nozzle 61 is a straight blowing nozzle, and the first blowing nozzle 61 sprays compressed gas in the direction flush with the end face of the paper material 21. The direction of the compressed gas sprayed by the second blowing nozzle 62 is arranged at an angle to the end face of the paper material 21. The first type is a "straight blowing nozzle", which is located between two tooth pieces 71 and can blow out a nearly horizontal airflow. The second type is a "curved nozzle", which is located above each tooth piece 71, and the second blowing nozzle 62 corresponds to the tooth piece 71 one by one. The second blowing nozzle 62 can blow out an airflow with an inclined angle to the paper material 21.

[0075] The blowing angles of the two structures of the blowing nozzles are different. The blowing nozzles are matched in height. The airflow in the horizontal direction and the airflow at an inclined angle to the paper material are cross-delivered, so that the pressurized airflow can be stably blown into the space between the paper material and the foil material (i.e., the above-mentioned peeling gap). Because the airflow has an inclined angle and can be blown directly onto the paper material, and then refracted into the peeling gap 14 between the paper material and the foil material 11, the peeling quality is guaranteed. It is required that the airflow ejected from the second blowing nozzle 62 can be refracted (i.e., the direction of the airflow changes after the airflow is blown to the paper material) according to the principle of aerodynamics and blown into the peeling and hot stamping area.

[0076] A cylinder 5 is installed on the wall panel, and a mounting plate 4 is installed on the movable end of the cylinder 5. The cylinder 5 is used to drive the first blowing nozzle 61 and the second blowing nozzle 62 to approach or move away from the hot stamping area 12. An inner cavity is provided in the mounting plate 4. The inner cavity of the mounting plate 4 is used to shunt the air path to each of the first blowing nozzle 61 and the second blowing nozzle 62. When the hot stamping equipment is stopped and the worker replaces the foil or wears the foil, the blowing nozzle assembly 6 is pushed and pulled by the cylinder 5 to move the nozzle forward and backward, thereby increasing the foil wearing space and making the operation more convenient.

[0077] During implementation, a switch valve 63 is installed on the mounting plate 4, and by rotating the switch valve 63, it is possible to adjust whether the first blowing nozzle 61 and the second blowing nozzle 62 are emitting air.

[0078] like Figure 2 The specific installation method of the blowing assembly and the tooth row lifting structure shown is that one side of the blowing nozzle assembly 6 is connected to the wall panel 1 through the mounting plate 4, and a sliding rod 91 is provided under the tooth row, and the sliding rod 91 can be synchronously displaced up and down with the lower platform 3 through a linkage assembly, and the linkage assembly for the up and down displacement can be a power source such as a push rod cylinder 5 or a linear drive in the prior art, or a cam structure 8 can be provided at the bottom of the sliding rod 91, one end of the cam structure 8 is linked to the lower platform 3, and the lower platform 3 drives the sliding rod 91 to slide up and down through the cam structure 8, and the upper end of the sliding rod 91 that slides up and down contacts the lower side of the tooth row body 7, an upper platform 2 is provided above the lower platform 3, and the lower end of the upper platform 2 is installed The hot stamping template 10, one side of the upper platform 2 is fixedly connected to the wall panel 1, the lower platform 3 can move relative to the upper platform 2, and the linear foil 11 passes through the upper platform 2 and the lower platform 3. When the lower platform 3 is away from the upper platform 2, the tooth bar body 7 can pass between the upper platform 2 and the lower platform 3. The wall panel 1 and the upper platform 2 are fixed. The lower platform 3 drives the sliding rod 91 to move up and down through the cam structure 8. The sliding rod 91 is linked with the tooth bar body 7. The cylinder 5 connects the blowing nozzle assembly 6 through the guide rail. The cylinder 5 drives the blowing nozzle assembly 6 to move horizontally. The blowing nozzle assembly 6 can blow the airflow into the gap between the upper platform 2 and the lower platform 3, and complete the flattening and peeling work.

[0079] A slider 9 is installed on a wall panel or a frame, and a sliding hole is provided in the middle of the slider 9, and a sliding rod 91 is installed in the sliding hole. The specific installation position of the slider 9 can be selected according to the actual situation on site. The slider 9 is mainly used for guiding the sliding rod 91. One end of the sliding rod 91 abuts against the cam structure 8, and the other end of the sliding rod 91 contacts the lower side of the tooth row body 7. The cam structure 8 includes a connecting rod 81 and a cam member 82. One end of the sliding rod 91 abuts against the middle of the connecting rod 81, and one end of the connecting rod 81 is sleeved on the contact member 85. The contact member 85 is fixedly connected to the lower platform 3, and the other end of the connecting rod 81 contacts the cam The periphery of the member 82 is fixedly installed to the wall panel 1, one end of the connecting rod 81 is rotatably sleeved with the roller 84, the periphery of the roller 84 is rollingly connected to the periphery of the cam member 82, an arc groove 83 is provided on one side of the cam member 82, the arc groove 83 is used to limit the displacement trajectory of the roller 84 so as to drive the slide bar 91 to move up and down, the lower platform 3 and the connecting rod 81 are connected by the contact member 85, the contact member 85 is fixed to the lower platform 3 with bolts, the contact member 85 and the connecting rod 81 are connected by a rotating shaft, can rotate with each other, and the connecting rod 81 can move up and down driven by the contact member 85.

[0080] In the embodiment, the connecting rod 81 has two rolling contacts. First, the lower roller 84 of the connecting rod 81 contacts the upper curved surface of the cam member 82, and the lower roller 84 of the connecting rod 81 rolls back and forth. Second, the upper roller 84 of the connecting rod 81 is firmly attached to the lower surface of the slide bar 91, and the slide bar 91 is pushed up and down by the upper roller 84. The slide bar 91 is in surface contact with the gripper bar, and the slide bar 91 pushes the gripper bar to move up and down.

[0081] like Figure 1 As shown, the conveying process of the paper material 21 is the prior art. The conveying process of the paper material is briefly described below. The paper material moves horizontally from the conveying platform toward the hot stamping structure. When the paper material is close to the hot stamping structure, the paper material is clamped by the upper and lower teeth 71 of the tooth bar body 7 and moves with the tooth bar body 7.

[0082] The tooth bars on the frame are evenly distributed on the chain at equal distances. The synchronous structure of several tooth bar bodies 7 is two chains. The two chains are equal in length and symmetrically connect the tooth bar bodies 7 in series to form a closed loop. The two chains move laterally on both sides of the hot stamping machine. The tooth bar bodies 7 are intermittently operated in circles, and the gap movement of the tooth bar bodies 7 and the opening and closing movement of the moving platform are in a corresponding relationship. When the moving platform is opened, the tooth bar bodies 7 clamp the paper material through the space between the upper platform 2 and the moving platform. When the upper and lower platforms 3 are closed, the foil 11 and the paper material complete the hot stamping action. During the hot stamping process, the tooth bar bodies 7 are at rest.

[0083] The foil 11 is introduced into the hot stamping area 12 through a plurality of steering rollers, and the plurality of steering rollers are distributed in the upper platform 2 and the foil feeding and recycling device, and the number is not limited to that shown in the figure, and the steering roller diameter may not be unique, but may be of multiple diameters. The foil feeding reel feeds the foil 11, and the foil 11 passes through a plurality of steering rollers, wraps from the upper platform 2 to the lower platform 2, and after wrapping around the upper platform 2, it passes through the steering rollers and is collected on the foil receiving reel.

[0084] The blowing nozzle assembly 6 is fixed on both sides of the machine through the mounting plate 4 and the wall panel 1. The blowing nozzle assembly spans across the outlet near the upper platform 2. To ensure a stable and effective peeling effect, the blowing nozzle air outlet of the blowing nozzle assembly is located at the junction of the gap between the foil and the paper material clamped by the tooth bar, which is closest to the gap.

[0085] like Figure 2 As shown, elastic element springs are provided between the connecting rod 81 and the cam member 82, and between the wall panel 1 and the slide rod 91. The elastic action of the springs can ensure that the connecting rod 81 and the cam member 82 are stably fitted without jumping, and ensure that the slide rod 91 can be quickly reset to avoid interfering with the subsequent tooth row.

[0086] and Figure 2The positional relationship of each part when the lower platform 3 moves to the highest point. It can be seen from the figure that the upper platform 2 and the moving platform press the foil 11 and the paper material 21 together. The lower platform 3 drives the connecting rod 81 to the high position of the cam member 82, the connecting rod 81 lifts the slide bar 91 and the tooth row, the spring maintains a tense elastic state, and the blowing nozzle assembly 6 does not blow. When the lower platform 3 starts to move downward, the upper platform 2 and the lower platform 3 are separated, and the blowing nozzle assembly 6 sends in the pressurized air flow to separate the foil 11 and the paper material. The lower platform 3 drives the connecting rod 81 to move on the cam member 83, the connecting rod 81 supports the slide bar 91 and the tooth row entraining the paper material 21, the spring maintains an elastic state, and the blowing nozzle assembly 6 starts blowing.

[0087] like Figure 1 As shown, during implementation, a conveyor table is set in the non-hot stamping area 13 on the right side of the hot stamping structure, and a paper material 21 is placed on the conveyor table, and the paper material 21 moves horizontally from the conveyor table toward the hot stamping structure. When the paper material 21 approaches the hot stamping structure, the paper is clamped by the teeth 71 on the teeth bar and moves with the teeth bar body 7, thereby passing through the hot stamping structure to implement the hot stamping operation. After the hot stamping operation is completed, the teeth bar drives the paper away from the hot stamping structure and releases the paper material 21 to the designated position after the hot stamping is completed.

[0088] When the movable platform is relatively opened, the gripper bar 7 clamps the paper material 21 through the space between the upper platform 2 and the movable platform. When the upper platform 2 and the movable platform are closed, the foil 11 and the paper material 21 are stamped, and the gripper bar is stopped during the stamping process.

[0089] like Figure 1 As shown, the foil 11 passes through at least one feed roller and one receiving roller to pass between the upper platform 2 and the moving platform. A plurality of steering rollers can be arranged between the feed roller and the receiving roller for steering or guiding the foil conveying route. The feed roller is used to hang the coil of the foil 11, and the receiving roller is used to recycle the foil 11.

[0090] like Figure 1 As shown, a paper collecting device is arranged on the left side of the hot stamping structure. The paper collecting device is the designated position where the paper material 21 is released after the hot stamping is completed. After the tooth bar carries the paper material 21, the tooth piece 71 is released to release the paper. The multiple tooth bar bodies 7 repeatedly release the paper, and the paper material 21 will be collected in a whole pile in the paper collecting device.

[0091] like Figure 3As shown, when the lower platform 3 moves to the lowest point, the positional relationship of each component is when the paper material 21 entrained by the gripper bar passes through the space between the upper and lower platforms 3. It can be seen from the figure that the upper platform 2 and the movable platform 3 are kept at the maximum separation position. The cam member 82 is kept at the lowest point of the arc groove 83, and the gripper bar entraining the paper material 21 is passing through the hot stamping area 12 composed of the upper platform 2 and the movable platform. The gripper bar body 7 drives the paper material 21 to approach the blowing nozzle assembly 6, and its movement is almost horizontal with the lower surface of the upper platform 2. The spring is in a relaxed elastic state at this time, and the blowing nozzle assembly 6 has no blowing action.

[0092] like Figure 4 The figure shows the superposition of multiple positions in the track during the movement of the gripper bar, such as the positional relationship between the gripper bar and the blowing nozzle assembly 6. The gripper bar is continuous and uninterrupted during the movement, and the figure can be regarded as a continuous superposition of the gripper bar during the movement process.

[0093] First position 17: the gripper bar carries the paper material 21 through the space between the upper platform 2 and the lower platform 3;

[0094] The second position 18: the moment when the gripper bar entrains the paper material 21 and is about to contact the slide bar 91, and the slide bar 91 is at the lowest point;

[0095] The third position 19 is a moment when the gripper bar is in the process of holding the paper material 21 and being lifted up by the slide bar 91, and the high point of the upper gripper plate 71 of the gripper bar and the low point of the blowing nozzle assembly 6 are approaching each other in relative position;

[0096] Fourth position 20: the gripper bar entrains the paper material 21 and is completely pushed into place by the slide bar 91 . The slide bar 91 is at the highest point, and the gripper bar has completely avoided the blowing nozzle assembly 6 .

[0097] In the present device, the air blowing nozzle assembly 6 realizes two functions through air blowing: blowing flat the foil and peeling off the foil.

[0098] When the lower platform 3 moves close to the highest point, the tooth row completely passes through the hot stamping area 12, and the paper material 21 is completely located in the hot stamping area 12. The air blowing nozzle assembly 6 blows the foil 11 flat by blowing to wait for the hot stamping process; when the lower platform 3 moves completely to the highest point, the foil 11 and the paper material are compacted and bonded by the relative action of the upper and lower platforms; after the pressure is maintained for a certain period of time, that is, after the hot stamping process is completed, the lower platform 3 starts to move downward, and the tooth row is driven to move downward from the highest point through the linkage structure. During the downward movement, the foil 11 and the paper material 21 are peeled and separated by the blowing action of the air blowing nozzle assembly 6.

[0099] During the upward movement of the tooth bar, the relative position of the tooth bar and the fixed air blowing nozzle assembly 6 changes. In order to avoid the protruding clamping end 16 of the tooth piece 71 track for clamping the paper material 21, a curved second air blowing nozzle 62 is provided, which is installed on the mounting surface of the first air blowing nozzle 61 and realizes the air blowing function just above the tooth piece 71. At other positions on the tooth bar body 7 (positions without tooth pieces 71), the first air blowing nozzle 61 is used to realize the air blowing function from both sides of the track of the tooth piece 71.

[0100] When the tooth row passes through the hot stamping area 12 and the lower platform 3 starts to move upward, the tooth row receives forces in two directions. One is the lateral pulling force away from the hot stamping area 12, and the other is the thrust of the lower platform 3 pushing the tooth row to move horizontally upward through the sliding rod 91. At this time, the tooth row moves in a curve, and the displacement change of the tooth row moving upward is determined by the relative movement of the connecting rod 81 and the cam member 82. The curved surface of the arc groove 83 of the cam member 82 is the trajectory variable of the tooth row avoiding the blowing nozzle.

[0101] A hot stamping process when using the above stripping device includes the following steps:

[0102] S1, the foil is hung on one side of the hot stamping structure through the feeding roller, and then one end of the foil passes through the hot stamping structure and is connected to the receiving roller;

[0103] S2, the teeth on the rotating teeth bar clamp the paper material 21 and move it horizontally close to the hot stamping structure;

[0104] S3, the tooth bar is intermittently running around the gilding structure, and the intermittent movement of the tooth bar corresponds to the opening and closing movement of the moving platform of the gilding structure;

[0105] S4, when the moving platform is relatively opened, the teeth row clamps the paper material 21 into or passes through the space between the static platform and the moving platform; when the static platform and the moving platform are closed, the foil and the paper material 21 complete the hot stamping action;

[0106] S5, performing air blowing peeling on the foil and paper material 21 through an air blowing nozzle assembly provided on one side of the hot stamping structure;

[0107] S6. As the movable platforms are relatively opened, the gripper bars clamp the paper material 21 after hot stamping away from the hot stamping structure, the feeding roller discharges the foil material, and the receiving roller winds up the used foil material.

[0108] 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 stripping device, wherein a static platform and a dynamic platform are arranged opposite to each other on a device having a hot stamping function, and are used for hot stamping paper materials. The gripper bar comprises a gripper bar body (7), and a plurality of gripper plates (71) for clamping paper materials are arranged at intervals on the gripper bar body (7). The paper materials are transferred between a non-hot stamping area (13) and a hot stamping area (12) through the gripper bar. Features: When the paper material is located in the hot stamping area (12), the air blowing nozzle assembly (6) is located on one side of the hot stamping area (12), and the air blowing nozzle assembly (6) is fixed at a preset position, the air blowing nozzle assembly (6) does not interfere with the tooth bar in transporting the paper material, the peeling gap (14) between the foil material to be peeled and the paper material is adjacent to the blowing end of the air blowing nozzle assembly (6), the tooth bar is located below the air blowing nozzle assembly (6), and the blowing end of the air blowing nozzle assembly (6) can spray compressed gas, and the compressed gas is used to blow and peel the foil material and the paper material.

2. A stripping device according to claim 1, Features: A tooth bar lifting structure is installed on one side of the moving platform, and the tooth bar lifting structure can be linked with the moving platform. When the tooth bar drives the paper material to pass through the hot stamping area (12), the tooth bar lifting structure linked with the moving platform is used to lift the tooth bar, so that the tooth bar approaches and avoids the blowing nozzle assembly (6), and the blowing end of the blowing nozzle assembly (6) is close to the upper surface of the paper material and the peeling gap (14).

3. A stripping device according to claim 1, Features: The moving platform is the lower platform (3).

4. A stripping device according to claim 1, Features: The air blowing nozzle assembly (6) comprises a plurality of first air blowing nozzles (61), and an avoidance gap is provided between each of the first air blowing nozzles (61), and the avoidance gap is used to avoid the tooth pieces (71) of the tooth row.

5. A stripping device according to claim 4, Features: The air blowing nozzle assembly (6) further comprises a plurality of second air blowing nozzles (62), and the second air blowing nozzles (62) and the first air blowing nozzles (61) do not interfere with each other. When the tooth row drives the paper material to be stamped in the gold stamping area (12), the air blowing end of the second air blowing nozzle (62) is located above the clamping end (16) of the tooth sheet (71), and the air blowing end of the first air blowing nozzle (61) is located between two adjacent tooth sheets (71); Preferably, the first air blowing nozzle and the second air blowing nozzle share the same air inlet cavity for air intake, and switch valves are respectively installed on the first air blowing nozzle (61) and the second air blowing nozzle (62).

6. A stripping device according to claim 5, Features: The second blowing nozzle (62) is a curved blowing nozzle, which is used to avoid interference with the movement trajectory of the tooth piece (71). Preferably, a side of the curved blowing nozzle close to the tooth row body (7) is provided with an avoidance arc.

7. A stripping device according to claim 4, Features: The first air blowing nozzle (61) sprays compressed air along the upper surface of the paper material.

8. A stripping device according to claim 5, Features: An angle is set between the direction of the compressed gas sprayed by the second blowing nozzle (62) and the upper surface of the paper material.

9. A stripping device according to claim 5, Features: A cylinder (5) is installed on one side of the first blowing nozzle (61), and the cylinder (5) is fixedly installed on the wall panel. The movable end of the cylinder (5) can push the mounting plate (4) connected to the first blowing nozzle (61) and the second blowing nozzle (62). An air inlet cavity is arranged inside the mounting plate, and the first blowing nozzle (61) and the second blowing nozzle (62) are connected to the air inlet cavity. The cylinder (5) drives the first blowing nozzle (61) and the second blowing nozzle (62) to approach or move away from the hot stamping area (12).

10. A stripping device according to claim 2, Features: The movable platform is the lower platform (3), and the gripper bar lifting structure includes a slide bar (91). A linkage component for driving the slide bar (91) to move is arranged at the bottom of the slide bar (91), and the top of the slide bar (91) is used to lift the gripper bar body (7); Preferably, the linkage assembly includes a cam structure (8), one end of the cam structure (8) is linked to the moving platform, and the moving platform drives the sliding rod (91) to slide up and down through the cam structure (8), and the upper end of the sliding rod (91) that slides up and down contacts the lower side of the tooth row.

11. A stripping device according to claim 10, Features: A slide block (9) is installed at a preset fixed position, a slide hole is provided in the middle of the slide block (9), a slide rod (91) is installed in the slide hole, one end of the slide rod (91) abuts against the cam structure (8), and the other end of the slide rod (91) contacts the lower side of the tooth row; Preferably, the cam structure (8) comprises a connecting rod (81) and a cam member (82), one end of the sliding rod (91) is abutted against the middle of the connecting rod (81), one end of the connecting rod (81) is sleeved on the contact member (85), the contact member (85) is fixedly connected to the lower platform (3), the other end of the connecting rod (81) contacts the periphery of the cam member (82), and the cam member (82) is fixedly installed to a preset position; One end of the connecting rod (81) is rotatably sleeved with a roller (84), and the periphery of the roller (84) is rollingly connected to the periphery of the cam member (82); An arc groove (83) is provided on one side of the cam member (82), and the arc groove (83) is used to limit the displacement track of the roller (84) so ​​as to drive the slide bar (91) to move up and down.

12. A stripping device according to claim 10, Features: One side of the slide bar (91) is connected to a preset fixed position via an elastic member, and the elastic member is used for rapid resetting of the slide bar (91).

13. A hot stamping process implemented by using the stripping device described in any one of claims 1 to 12, Features: When the tooth bar drives the paper material to pass through the hot stamping area (12), the relatively moving platform can lift the tooth bar in a coordinated manner, so that the tooth bar approaches and avoids the blowing nozzle assembly (6) for blowing air. At this time, the blowing end of the blowing nozzle assembly (6) approaches the peeling gap (14) between the foil material to be peeled off and the paper material, and the paper material and the foil material are peeled off by blowing air.

14. A hot stamping process according to claim 13, Features: The blowing airflow is provided with at least two blowing angles, which are respectively a horizontal blowing airflow and a blowing airflow with an inclined angle to the paper material. The airflow diffusion areas blown out at different blowing angles intersect and are blown into the peeling gap between the paper material and the foil material to complete the peeling.

15. A hot stamping process according to claim 13, Features: The steps include: S1, the foil is hung on one side of the hot stamping structure through the feeding roller, and then one end of the foil passes through the hot stamping structure and is connected to the receiving roller; S2, clamping the paper material (21) by means of a tooth bar and moving it laterally toward the hot stamping structure; S3, the tooth bar is intermittently running around the gilding structure, and the intermittent movement of the tooth bar corresponds to the opening and closing movement of the moving platform of the gilding structure; S4, when the moving platform is relatively opened, the teeth row clamps the paper material (21) into or passes through the space between the static platform and the moving platform; when the static platform and the moving platform are closed, the foil material is hot stamped on the paper material (21) to complete the hot stamping action; S5, in step S4, when the gripper bar clamps the paper material (21) and passes through the hot stamping area (12), the relatively moving platform can lift up the gripper bar in a coordinated manner, so that the gripper bar approaches and avoids the blowing nozzle assembly (6) for blowing air, and the gap between the foil material and the paper material (21) is blown and peeled by the blowing nozzle assembly; S6. As the movable platform opens relatively, the teeth bar clamps the paper material (21) that has been stamped away from the stamping structure, the feeding roller discharges the foil material, and the receiving roller winds up the used foil material.

16. A hot stamping process according to claim 15, Features: In step S4, during the hot stamping process after the static platform and the dynamic platform are closed, the tooth row is stopped; Preferably, the movable platform is the lower platform, and when the upper platform (2) and the lower platform are relatively opened, the blowing end of the blowing nozzle assembly (6) is away from the upper surface of the material paper; when the upper platform (2) and the lower platform are closed, the blowing end of the blowing nozzle assembly (6) is close to the upper surface of the material paper; Preferably, a conveying platform and a paper collecting device are respectively arranged on both sides of the hot stamping structure, and the tooth piece (71) can clamp the paper material (21) on the conveying platform, pass through the hot stamping structure to complete the hot stamping, and then convey and lower it to the paper collecting device; Preferably, both ends of the tooth bar body (7) are fixedly connected to a chain respectively, and the two chains are arranged parallel to each other, each chain is engaged with a sprocket, and the sprocket is rotated by a drive motor, and the drive motor and the sprocket are installed on a frame or other fixed position; Preferably, the plurality of tooth row bodies (7) are evenly distributed around the chain at equal distances.

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