Cold ironing machine

Abstract

The utility model discloses a cold stamping machine which comprises a machine frame, a feeder mechanism, a gluing mechanism, a paper conveying mechanism, a paper hot stamping mechanism, a paper collecting mechanism and a control device, and the feeder mechanism, the gluing mechanism, the paper conveying mechanism, the paper hot stamping mechanism and the paper collecting mechanism are respectively installed on the machine frame. The paper hot stamping mechanism comprises an unwinding device, a cold stamping device and a winding device, and the unwinding device, the cold stamping device and the winding device are sequentially arranged; the paper conveying mechanism comprises a first conveying device and a second conveying device, and the first conveying device, the cold ironing device, the second conveying device and the paper collecting mechanism are sequentially arranged; the cold ironing machine further comprises a drying mechanism, the drying mechanism comprises a pre-drying device and a final drying device, the pre-drying device is arranged above the front end of the first conveying device, and the final drying device is arranged above the front end of the second conveying device. According to the cold ironing machine, glue coated on paper can be pre-dried before cold ironing, so that the glue is kept in a required area.

Description

Technical Field

[0001] The utility model relates to hot stamping equipment, in particular to a cold stamping machine. Background Art

[0002] In the printing industry, in order to achieve the effect of a metallic feel on the surface of printed matter, the hot stamping process is often used. The hot stamping process is divided into two types: hot stamping and cold stamping. The hot stamping process is to engrave the pattern to be hot stamped on the master plate, and through heating, the gold and silver patterns on the electrochemically deposited aluminum are laid on the surface of the printed matter to achieve a three-dimensional effect. However, the hot stamping process has a fatal defect, that is, when stamping fine lines and large areas, the fine lines often break, and there are problems of incomplete stamping and incomplete stamping in large-area stamping. The cold stamping process is a process of sticking the graphics and texts on the hot stamping electrochemically deposited aluminum with glue, which can solve the problems of incomplete stamping of fine lines and large areas. Before cold stamping, it is necessary to coat glue on the cold stamping area on the surface of the paper first. However, the glue commonly used at present is relatively thin. Therefore, after coating, the glue often spreads outside the cold stamping area, resulting in the area where the glue spreads also being stained with electrochemically deposited aluminum during subsequent cold stamping, affecting the graphic accuracy. Content of the Utility Model

[0003] The technical problem to be solved by the utility model is to provide a cold stamping machine that can pre-dry the glue coated on the paper before cold stamping, keep the glue in the required area, and ensure the hot stamping quality.

[0004] In order to solve the above technical problems, the following technical solutions are adopted:

[0005] A cold stamping machine, comprising a frame, a feeder mechanism, a gluing mechanism, a paper conveying mechanism, a paper stamping mechanism, a paper collecting mechanism and a control device. The feeder mechanism, the gluing mechanism, the paper conveying mechanism, the paper stamping mechanism and the paper collecting mechanism are respectively installed on the frame. The feeder mechanism, the gluing mechanism, the paper conveying mechanism and the paper collecting mechanism are arranged in sequence from front to back along the conveying direction of the paper. The signal input ends of the feeder mechanism, the gluing mechanism, the paper conveying mechanism, the paper stamping mechanism and the paper collecting mechanism are respectively electrically connected to the corresponding signal output ends of the control device. It is characterized in that: the paper stamping mechanism includes an unwinding device, a cold stamping device and a winding device, and the unwinding device, the cold stamping device and the winding device are arranged in sequence from front to back along the conveying direction of the hot stamping foil; the paper conveying mechanism includes a first conveying device and a second conveying device, and the first conveying device, the cold stamping device, the second conveying device and the paper collecting mechanism are arranged in sequence from front to back along the conveying direction of the paper; the cold stamping machine further includes a drying mechanism, and the drying mechanism includes a pre-drying device and a final drying device. The pre-drying device and the final drying device are respectively installed on the frame. The pre-drying device is arranged above the front end of the first conveying device, and the final drying device is arranged above the front end of the second conveying device and faces the cold stamping device; the signal input ends of the pre-drying device and the final drying device are respectively electrically connected to the corresponding signal output ends of the control device.

[0006] When the above-mentioned cold stamping machine works, the feeder mechanism first feeds the papers one by one into the gluing mechanism, and the gluing mechanism applies glue to the papers (i.e., coats glue on the area where cold stamping graphics and texts are required on the upper surface of the papers). After the papers are glued, they are first conveyed by the first conveying device. At this time, the pre-drying device pre-dries the glue to make the glue preliminarily cured and prevent the glue from spreading; subsequently, the papers are conveyed from the first conveying device to the cold stamping device for stamping. When the hot stamping foil is about to be peeled off after cold stamping and pressing, the final drying device finally dries the glue to make the glue completely dry, and the cold stamping device can peel off the waste hot stamping foil; after the graphics and texts are stamped, the papers are continuously conveyed by the second conveying device and sent into the paper collecting mechanism for paper collection. This cold stamping machine can pre-dry the glue coated on the papers before cold stamping, make the glue preliminarily cured and not easy to spread, and can remain in the required area to ensure the stamping quality; and can shorten the time of subsequent final drying, so that the papers can immediately peel off the waste hot stamping foil after cold stamping and pressing, and improve the stamping efficiency.

[0007] Both the above-mentioned pre-drying device and the final drying device adopt UV lamps; when pre-drying, the preliminary curing of the glue can be achieved by controlling the irradiation time of the UV lamps on the papers.

[0008] In a preferred embodiment, the cold stamping device includes an upper stamping roller, a lower stamping roller, and a first lifting drive mechanism capable of driving the upper stamping roller or the lower stamping roller to lift. The unwinding device, the upper stamping roller, and the winding device are arranged in sequence from front to back along the conveying direction of the hot stamping foil; the first conveying device, the lower stamping roller, the second conveying device, and the paper receiving mechanism are arranged in sequence from front to back along the conveying direction of the paper; the upper stamping roller and the lower stamping roller are pressed together. The pressing position of the upper stamping roller and the lower stamping roller is the hot stamping station of the paper, and the above-mentioned final drying device faces the hot stamping station. During hot stamping, the paper is conveyed from the first conveying device to the lower stamping roller, and under the drive of the first lifting drive mechanism, hot stamping is performed under the pressing of the upper stamping roller and the lower stamping roller; subsequently, the paper that has completed hot stamping is continuously conveyed onto the second conveying device.

[0009] The above-mentioned first lifting drive mechanism can adopt a cylinder.

[0010] In a further preferred embodiment, the cold stamping machine further includes a paper blowing mechanism, which is arranged between the lower stamping roller and the second conveying device, and the blowing end of the paper blowing mechanism faces upward. When the paper has completed hot stamping and is conveyed to the second conveying device, the paper blowing mechanism can blow the rear end of the paper upward, enabling the paper to smoothly transition onto the second conveying device and preventing the paper from being inserted into the gap between the lower stamping roller and the second conveying device. The above-mentioned paper blowing mechanism can adopt a blower.

[0011] In a further preferred embodiment, the paper hot stamping mechanism further includes a flattening roller, which is arranged in front of the upper stamping roller along the conveying direction of the hot stamping foil. The flattening roller can fully unfold the hot stamping foil before hot stamping to prevent the hot stamping foil from wrinkling.

[0012] In a preferred embodiment, the paper conveying mechanism further includes a detection device, two lateral registration devices, and two longitudinal registration devices. The detection device, the lateral registration devices, and the longitudinal registration devices are respectively installed on the frame. The detection device includes two detection sensors, which are arranged side by side left and right above the first conveying device; the two lateral registration devices are respectively arranged on the left and right sides of the first conveying device, the pushing directions of the two lateral registration devices are set to face each other and are both perpendicular to the conveying direction of the first conveying device; the two longitudinal registration devices are arranged side by side left and right, and the pushing direction of the longitudinal registration devices is parallel to the conveying direction of the first conveying device; the signal output end of the detection device is electrically connected to the corresponding signal input end of the control device, and the signal input ends of the lateral registration devices and the longitudinal registration devices are respectively electrically connected to the corresponding signal output ends of the control device.

[0013] In the above-mentioned paper conveying mechanism, usually, along the conveying direction of the paper, the detection device, the lateral push gauge device and the longitudinal push gauge device are arranged in front of the hot stamping station. During operation, before the paper is conveyed to the hot stamping station on the paper conveying mechanism, the detection device first detects the paper (a color mark for positioning cold stamping is printed on the paper, and the detection device detects the color mark), and sends the detection result to the control device. When the position of the paper is offset, the control device calculates the offset amount on each side of the paper, and calculates the corresponding pushing amount according to the offset amount on each side; then the control device sends a control signal to the corresponding longitudinal push gauge device, so that the longitudinal push gauge device pushes the corresponding position of the paper according to the pushing amount. At the same time, the control device sends a control signal to the two lateral push gauge devices, and the two lateral push gauge devices jointly correct the position of the paper in the left and right directions, thereby correcting the position of the paper; finally, after the position correction is completed, the paper is conveyed to the hot stamping station, and the cold stamping device performs hot stamping on the corresponding position of the paper. Through this arrangement, the position of the paper can be detected before the paper is hot-stamped, and the paper can be corrected according to the detection result to ensure that the hot-stamping position of the paper will not be offset.

[0014] Usually, the two detection sensors of the detection device are arranged side by side on the left and right above the rear end of the first conveying device.

[0015] In a further preferred embodiment, the longitudinal pushing gauge device includes a first correcting block, a lifting seat, a second lifting drive mechanism capable of driving the lifting seat to lift and lower, a longitudinal translation seat and a longitudinal translation drive mechanism capable of driving the longitudinal translation seat to translate, the longitudinal translation drive mechanism is installed on the frame, the longitudinal translation seat is transmission-connected to the power output end of the longitudinal translation drive mechanism, the second lifting drive mechanism is installed on the longitudinal translation seat, the lifting seat is transmission-connected to the power output end of the second lifting drive mechanism, and the first correcting block is installed on the lifting seat; the signal input ends of the second lifting drive mechanism and the longitudinal translation drive mechanism are respectively electrically connected to the signal output ends corresponding to the detection device.

[0016] The above-mentioned first conveying device generally includes a conveying motor, a driving roller, a driven roller and an endless belt. The motor is installed on a lifting seat. The driving roller and the driven roller are respectively rotatably installed on the frame, and the driving roller is in transmission connection with the power output shaft of the conveying motor. The driving roller and the driven roller jointly tension the endless belt. The endless belt can be composed of a plurality of endless belt units arranged side by side. A plurality of driving pulleys arranged side by side are provided on the driving roller, and a plurality of driven pulleys arranged side by side are provided on the driven roller. The number of the endless belt units, the driving pulleys and the driven pulleys is the same and they correspond to each other one by one. The driving pulley and the driven pulley jointly tension the corresponding endless belt unit. There is a gap between two adjacent endless belt units. Each first deviation correction block can be located in the interval between adjacent endless belt units. When deviation correction is required, the second lifting driving mechanism drives the first deviation correction block to rise, so that the first deviation correction block passes through the interval and exposes the endless belt. Subsequently, the longitudinal translation driving mechanism drives the first deviation correction block to translate, so that the first deviation correction block pushes the paper.

[0017] In a further preferred solution, the lateral register device includes a second deviation correction block, a lateral translation seat and a lateral translation driving mechanism capable of driving the lateral translation seat to translate. The lateral translation driving mechanism is installed on the frame. The lateral translation seat is in transmission connection with the power output end of the lateral translation driving mechanism. The second deviation correction block is installed on the lateral translation seat. The signal input end of the lateral translation driving mechanism is electrically connected to the corresponding signal output end of the detection device. The second deviation correction block of the left lateral register device moves to the right, and the second deviation correction block of the right lateral register device moves to the left, respectively contacting the left edge and the right edge of the paper, and jointly correcting the position of the paper in the left-right direction.

[0018] In a further preferred solution, the detection sensor adopts an image sensor or a photoelectric sensor.

[0019] The above-mentioned second lifting driving mechanism can adopt a cylinder.

[0020] The above-mentioned longitudinal translation driving mechanism can adopt a transmission belt, a driving wheel, a driven wheel and a servo motor. The servo motor is installed on the frame. The driving wheel and the driven wheel are rotatably installed on the frame. The driving wheel is in transmission connection with the output shaft of the servo motor. The transmission belt is tensioned between the driving wheel and the driven wheel. The longitudinal translation seat is installed on the forward section of the transmission belt.

[0021] The above-mentioned lateral translation driving mechanism can adopt a transmission belt, a driving wheel, a driven wheel and a servo motor. The servo motor is installed on the frame. The driving wheel and the driven wheel are rotatably installed on the frame. The driving wheel is in transmission connection with the output shaft of the servo motor. The transmission belt is tensioned between the driving wheel and the driven wheel. The lateral translation seat is installed on the forward section of the transmission belt. The above-mentioned lateral translation driving mechanism can also adopt a cylinder.

[0022] In the preferred embodiment, the paper hot stamping mechanism also includes a skip-step traction device, and the unwinding device, cold stamping device, skip-step traction device and winding device are arranged in sequence from front to back along the conveying direction of the electroplated aluminum. The skip-step traction device includes a skip-step mechanism support rod and at least one skip-step mechanism, and the skip-step mechanism support rod is arranged along the left and right directions. The skip-step mechanism includes a skip-step roller support seat, a skip-step roller, a pressure roller and a skip-step roller driving device capable of driving the skip-step roller to rotate, the skip-step roller support seat is installed on the skip-step mechanism support rod, and the position of the skip-step roller support seat on the skip-step mechanism support rod is adjustable, the skip-step roller is detachably installed on the skip-step roller support seat, the pressure roller is rotatably installed on the skip-step roller support seat, the skip-step roller is pressed together with the pressure roller, the skip-step roller is parallel to the skip-step mechanism support rod, the skip-step roller driving device is installed on the skip-step roller support seat, and the skip-step roller is transmission-connected to the power output end of the skip-step roller driving device; the signal input end of the skip-step roller driving device is electrically connected to the signal output end corresponding to the control device.

[0023] In the above-mentioned paper hot stamping mechanism, the electroplated aluminum is released from the unwinding device, and the jumping roller and the pressure roller in the jumping traction device pull the electroplated aluminum, and then the winding device rewinds it; during the hot stamping process, according to the length of the electroplated aluminum required for hot stamping, the jumping roller driving device drives the jumping roller to rotate the corresponding angle, so that the electroplated aluminum and the jumping roller run synchronously, and the electroplated aluminum moves forward a corresponding length. When cold stamping, the jumping roller of the corresponding size can be replaced according to the width of the electroplated aluminum, and the jumping roller support seat can be moved on the jumping mechanism support rod according to the hot stamping position to ensure that the hot stamping position and the amount of electroplated aluminum used each time can match the paper hot stamping area to avoid waste.

[0024] In a further preferred embodiment, the skipping traction device includes a plurality of skipping mechanisms, each of which is sequentially mounted on the support rod of the skipping mechanism from left to right. When it is necessary to use multiple types of electroplated aluminum in a hot stamping process (for example, wide cold stamping and narrow cold stamping at the same time), the skipping rollers of corresponding sizes can be replaced in each skipping mechanism, and the positions of the support seats of each skipping roller on the support rod of the skipping mechanism can be adjusted.

[0025] In a further preferred embodiment, a guide hole is formed on the jump roller support seat, the jump roller support seat is sleeved on the jump mechanism support rod through the guide hole, and the jump roller support seat is fixed on the jump mechanism support rod through a locking mechanism. As required, the position of the jump roller support seat can be adjusted left and right on the jump mechanism support rod, and the locking mechanism is used to fix the position of the jump roller support seat after the adjustment is completed.

[0026] In a further preferred embodiment, the locking mechanism includes a first screw and a first screw hole provided on the skipping roller support seat, the first screw is threadedly connected to the first screw hole, and the end of the first screw rod is in contact with the skipping mechanism support rod. When adjusting the position of the skipping roller support seat, the first screw is loosened, and the skipping roller support seat is moved left and right along the skipping mechanism support rod as required, and the first screw is tightened again after the movement is completed; at the same time, when different skipping mechanisms interfere with each other, the angle of the skipping roller support seat can be adjusted along the circumference of the skipping mechanism support rod, so that different skipping roller support seats are staggered.

[0027] In a further preferred embodiment, the skipping roller support seat includes a left support plate and a right support plate, the left support plate and the right support plate are both provided with the guide hole and the first screw hole, the left support plate and the right support plate are sleeved on the support rod of the skipping mechanism side by side; the skipping roller driving device is installed on the left support plate or the right support plate; the two ends of the skipping roller and the pressure roller are rotatably connected to the left support plate and the right support plate respectively. With this arrangement, when replacing skipping rollers of different lengths according to the length requirements, the distance between the corresponding left support plate and the right support plate can be adjusted.

[0028] In a further preferred embodiment, the skip roller support seat also includes a left rotating block, a right rotating block and two second screws, the left rotating block can be rotatably mounted on the left support plate, and the right rotating block can be rotatably mounted on the right support plate; the power output end of the skip roller driving device is transmission-connected with the left rotating block or the right rotating block; the left rotating block is provided with a left mounting column extending to the right, and the right rotating block is provided with a right mounting column extending to the left, the positions of the left mounting column and the right mounting column correspond to each other, and second screw holes are respectively opened on the side walls of the left mounting column and the right mounting column; a left mounting hole is opened in the middle position of the left end surface of the skip roller, and the left mounting hole matches the shape and size of the left mounting column, and a right mounting hole is opened in the middle position of the right end surface of the skip roller, and the right mounting hole matches the shape and size of the right mounting column; through holes are respectively provided on the sides at both ends of the skip roller (the through hole at the left end is connected to the left mounting hole, and the through hole at the right end is connected to the right mounting hole), the through holes, the second screws and the second screw holes correspond to each other, and the second screws pass through the corresponding through holes and are threadedly connected to the second screw holes. When installing the skip roller, the left mounting column and the right mounting column can be inserted into the two ends of the skip roller through the left mounting hole and the right mounting hole respectively, and then the skip roller is locked on the left mounting column and the right mounting column using the second screw; this method is convenient for replacing the skip roller, and the size of the mounting hole and the through hole is unified, which is suitable for skip rollers of different lengths and diameters. The rotation axes of the left rotating block, the skip roller, and the right rotating block coincide.

[0029] The above-mentioned skip roller driving device includes a servo motor and a speed reducer. The servo motor and the speed reducer are fixedly installed on the skip roller support seat. The power output shaft of the servo motor is in transmission connection with the power input shaft of the speed reducer, and the skip roller is in transmission connection with the power output shaft of the speed reducer.

[0030] The above-mentioned feeder mechanism, gluing mechanism and paper receiving mechanism can all adopt the structures of existing hot stamping equipment, which will not be elaborated here.

[0031] The beneficial effect of the present utility model is that this cold stamping machine can pre-dry the glue coated on the paper before cold stamping, keep the glue in the required area, and ensure the hot stamping quality. Description of the Drawings

[0032] Figure 1 is a schematic structural diagram of the cold stamping machine in the embodiment of the present utility model;

[0033] Figure 2 is a schematic structural diagram of the first conveying device, detection device, lateral register device and longitudinal register device in the embodiment of the present utility model;

[0034] Figure 3 is a schematic structural diagram of the longitudinal register device in the embodiment of the present utility model;

[0035] Figure 4 is a schematic structural diagram of the skip traction device in the embodiment of the present utility model;

[0036] Figure 5 is Figure 4 an enlarged view of position A in Detailed Embodiments

[0037] The following further describes the present utility model in conjunction with the drawings and specific embodiments:

[0038] As Figures 1-5A cold stamping machine shown in the figure includes a frame 1, a feeder mechanism 2, a gluing mechanism 3, a paper conveying mechanism 4, a paper stamping mechanism 5, a drying mechanism 6, a paper collecting mechanism 7, and a control device (not shown in the figure). The feeder mechanism 2, the gluing mechanism 3, the paper conveying mechanism 4, the paper stamping mechanism 5, the drying mechanism 6, and the paper collecting mechanism 7 are respectively installed on the frame 1. The signal input ends of the feeder mechanism 2, the gluing mechanism 3, the paper conveying mechanism 4, the paper stamping mechanism 5, the drying mechanism 6, and the paper collecting mechanism 7 are respectively electrically connected to the corresponding signal output ends of the control device. The paper stamping mechanism 5 includes an unwinding device 501, a cold stamping device 503, and a winding device 505. The unwinding device 501, the cold stamping device 503, and the winding device 505 are arranged in sequence from front to back along the conveying direction of the aluminized paper. The paper conveying mechanism 4 includes a first conveying device 401 and a second conveying device 402. The feeder mechanism 2, the gluing mechanism 3, the first conveying device 401, the cold stamping device 503, the second conveying device 402, and the paper collecting mechanism 7 are arranged in sequence from front to back along the conveying direction of the paper. The drying mechanism 6 includes a pre-drying device 601 and a final drying device 602. The pre-drying device 601 is arranged above the front end of the first conveying device 401, and the final drying device 602 is arranged above the front end of the second conveying device 402, and the final drying device 602 faces the cold stamping device 503.

[0039] When the above cold stamping machine works, the feeder mechanism 2 first feeds the papers one by one into the gluing mechanism 3. The gluing mechanism 3 applies glue to the papers (that is, coats glue on the area where cold stamping graphics and texts are required on the upper surface of the papers). After the papers are glued, they are first conveyed by the first conveying device 401. At this time, the pre-drying device 601 pre-dries the glue to make the glue preliminarily solidify and prevent the glue from spreading. Subsequently, the papers are conveyed from the first conveying device 401 to the cold stamping device 503 for stamping. When the aluminized paper is about to be peeled off immediately after cold stamping and pressing, the final drying device 602 performs final drying on the glue to make the glue completely dry. The cold stamping device 503 can peel off the waste aluminized film. After the graphics and texts are stamped, the papers are continuously conveyed by the second conveying device 402 and sent into the paper collecting mechanism 7 for paper collection. This cold stamping machine can pre-dry the glue coated on the papers before cold stamping, make the glue preliminarily solidify and not easy to spread, keep it in the required area, and can shorten the subsequent final drying time, so that the waste aluminized film can be peeled off immediately after the papers are cold stamped and pressed, and the stamping efficiency is improved.

[0040] Both the above pre-drying device 601 and the final drying device 602 adopt UV lamps. When performing pre-drying, the preliminary solidification of the glue can be achieved by controlling the irradiation time of the UV lamps on the papers.

[0041] The cold stamping device 503 includes an upper stamping roller 5031, a lower stamping roller 5032, and a first lifting drive mechanism 5033 capable of driving the upper stamping roller 5031 to lift. The unwinding device 501, the upper stamping roller 5031, and the winding device 505 are arranged in sequence from front to back along the conveying direction of the aluminized paper. The first conveying device 401, the lower stamping roller 5032, the second conveying device 402, and the paper receiving mechanism 7 are arranged in sequence from front to back along the conveying direction of the paper. The upper stamping roller 5031 and the lower stamping roller 5032 are pressed together. The pressing position of the upper stamping roller 5031 and the lower stamping roller 5032 is the stamping station of the paper, and the final drying device 602 faces the stamping station. During stamping, the paper is conveyed from the first conveying device 401 to the lower stamping roller 5032, and under the drive of the first lifting drive mechanism 5033, stamping is performed under the pressing of the upper stamping roller 5031 and the lower stamping roller 5032. Subsequently, the paper that has completed stamping is continuously conveyed onto the second conveying device 402.

[0042] The above-mentioned first lifting drive mechanism 5033 uses a cylinder.

[0043] The cold stamping machine further includes a paper blowing mechanism 8. The paper blowing mechanism 8 is arranged between the lower stamping roller 5032 and the second conveying device 402, and the blowing end of the paper blowing mechanism 8 faces upward. When the paper completes stamping and is conveyed to the second conveying device 402, the paper blowing mechanism 8 can blow the rear end of the paper upward, enabling the paper to smoothly transition onto the second conveying device 402 and preventing the paper from being inserted into the gap between the lower stamping roller 5032 and the second conveying device 402. The above-mentioned paper blowing mechanism 8 uses a blower.

[0044] The paper stamping mechanism 5 further includes a flattening roller 502. Along the conveying direction of the aluminized paper, the flattening roller 502 is arranged in front of the upper stamping roller 5031. The flattening roller 502 can fully unfold the aluminized paper before stamping to prevent the aluminized paper from wrinkling.

[0045] The paper feeding mechanism 4 further includes a detection device 403, two lateral registering devices 404, and two longitudinal registering devices 405. The detection device 403, the lateral registering devices 404, and the longitudinal registering devices 405 are respectively installed on the frame 1. The detection device 403 includes two detection sensors 4031, and the two detection sensors 4031 are arranged side by side left and right above the first conveying device 401; the two lateral registering devices 404 are respectively arranged on the left and right sides of the first conveying device 401, the pushing directions of the two lateral registering devices 404 are arranged towards each other and are both perpendicular to the conveying direction of the first conveying device 401; the two longitudinal registering devices 405 are arranged side by side left and right, and the pushing direction of the longitudinal registering device 405 is parallel to the conveying direction of the first conveying device 401; the signal output end of the detection device 403 is electrically connected to the corresponding signal input end of the control device, and the signal input ends of the lateral registering devices 404 and the longitudinal registering devices 405 are respectively electrically connected to the corresponding signal output ends of the control device.

[0046] In the above-mentioned paper feeding mechanism 4, generally, along the paper conveying direction, the detection device 403, the lateral registering devices 404, and the longitudinal registering devices 405 are arranged in front of the hot stamping station. During operation, when the paper is about to be conveyed to the hot stamping station on the paper feeding mechanism 4, the detection device 403 first detects the paper (there is a color mark for positioning cold stamping printed on the paper, and the detection device 403 detects the color mark), and sends the detection result to the control device. When the position of the paper is offset, the control device calculates the offset amount on each side of the paper and calculates the corresponding pushing amount according to the offset amount on each side; then the control device sends a control signal to the corresponding longitudinal registering device 405, so that the longitudinal registering device 405 pushes the corresponding position of the paper according to the pushing amount. At the same time, the control device sends a control signal to the two lateral registering devices 404, and the two lateral registering devices 404 jointly correct the position of the paper in the left and right directions, thereby correcting the position of the paper; finally, after the position of the paper is corrected, it is conveyed to the hot stamping station, and the cold stamping device 503 hot stamps the corresponding position of the paper. Through this setting, it is possible to detect the position of the paper before hot stamping and correct the deviation of the paper according to the detection result, ensuring that the hot stamping position of the paper will not be offset.

[0047] The two detection sensors 4031 of the detection device 403 are arranged side by side left and right above the rear end of the first conveying device 401.

[0048] The longitudinal pushing and aligning device 405 includes a first alignment block 4051, a lifting seat 4052, a second lifting drive mechanism 4053 capable of driving the lifting seat 4052 to lift, a longitudinal translation seat 4054, and a longitudinal translation drive mechanism 4055 capable of driving the longitudinal translation seat 4054 to translate. The longitudinal translation drive mechanism 4055 is installed on the frame 1. The longitudinal translation seat 4054 is in transmission connection with the power output end of the longitudinal translation drive mechanism 4055. The second lifting drive mechanism 4053 is installed on the longitudinal translation seat 4054. The lifting seat 4052 is in transmission connection with the power output end of the second lifting drive mechanism 4053. The first alignment block 4051 is installed on the lifting seat 4052. The signal input ends of the second lifting drive mechanism 4053 and the longitudinal translation drive mechanism 4055 are respectively electrically connected to the corresponding signal output ends of the detection device 403.

[0049] The above-mentioned first conveying device 401 includes a conveying motor, a driving roller, a driven roller, and an endless belt. The motor is installed on the lifting seat 4052. The driving roller and the driven roller are respectively rotatably installed on the frame 1, and the driving roller is in transmission connection with the power output shaft of the conveying motor. The driving roller and the driven roller jointly tension the endless belt. The endless belt can be composed of a plurality of side-by-side endless belt units. A plurality of side-by-side driving pulleys are provided on the driving roller, and a plurality of side-by-side driven pulleys are provided on the driven roller. The number of the endless belt units, the driving pulleys, and the driven pulleys is the same and they correspond to each other one by one. The driving pulleys and the driven pulleys jointly tension the corresponding endless belt units. There is a gap between two adjacent endless belt units. Each first alignment block 4051 can be located in the interval between adjacent endless belt units. When alignment is required, the second lifting drive mechanism 4053 drives the first alignment block 4051 to rise, so that the first alignment block 4051 passes through the interval and exposes the endless belt. Subsequently, the longitudinal translation drive mechanism 4055 drives the first alignment block 4051 to translate, so that the first alignment block 4051 pushes the paper.

[0050] The lateral pushing and aligning device 404 includes a second alignment block 4041, a lateral translation seat 4042, and a lateral translation drive mechanism 4043 capable of driving the lateral translation seat 4042 to translate. The lateral translation drive mechanism 4043 is installed on the frame 1. The lateral translation seat 4042 is in transmission connection with the power output end of the lateral translation drive mechanism 4043. The second alignment block 4041 is installed on the lateral translation seat 4042. The signal input end of the lateral translation drive mechanism 4043 is electrically connected to the corresponding signal output end of the detection device 403. The second alignment block 4041 of the left lateral pushing and aligning device 404 moves to the right, and the second alignment block 4041 of the right lateral pushing and aligning device 404 moves to the left, respectively contacting the left edge and the right edge of the paper, and jointly correcting the position of the paper in the left-right direction.

[0051] The detection sensor 4031 adopts an image sensor or a photoelectric sensor.

[0052] The above-mentioned second lifting drive mechanism 4053 uses a cylinder.

[0053] The above-mentioned longitudinal translation drive mechanism 4055 uses a transmission belt, a driving wheel, a driven wheel and a servo motor. The servo motor is installed on the frame 1. The driving wheel and the driven wheel are rotatably installed on the frame 1. The driving wheel is in transmission connection with the output shaft of the servo motor. The transmission belt is tensioned between the driving wheel and the driven wheel. The longitudinal translation seat 4054 is installed on the forward section of the transmission belt.

[0054] The above-mentioned lateral translation drive mechanism 4043 uses a transmission belt, a driving wheel, a driven wheel and a servo motor. The servo motor is installed on the frame. The driving wheel and the driven wheel are rotatably installed on the frame. The driving wheel is in transmission connection with the output shaft of the servo motor. The transmission belt is tensioned between the driving wheel and the driven wheel. The lateral translation seat 4042 is installed on the forward section of the transmission belt.

[0055] The paper hot stamping mechanism 5 further includes a skip step traction device 504. The unwinding device 501, the cold stamping device 503, the skip step traction device 504 and the winding device 505 are arranged in sequence from front to back along the conveying direction of the aluminized paper. The skip step traction device 504 includes a skip step mechanism support rod 5041 and two skip step mechanisms. The skip step mechanism support rod 5041 is arranged in the left-right direction. The two skip step mechanisms are installed on the skip step mechanism support rod 5041 in sequence from left to right. The skip step mechanism includes a skip step roller support seat 5042, a skip step roller 5043, a pressure roller 5044 and a skip step roller drive device 5045 capable of driving the skip step roller 5043 to rotate. The skip step roller support seat 5042 is installed on the skip step mechanism support rod 5041, and the position of the skip step roller support seat 5042 on the skip step mechanism support rod 5041 is adjustable. The skip step roller 5043 is detachably installed on the skip step roller support seat 5042. The pressure roller 5044 is rotatably installed on the skip step roller support seat 5042. The skip step roller 5043 is pressed against the pressure roller 5044. The skip step roller 5043 is parallel to the skip step mechanism support rod 5041. The skip step roller drive device 5045 is installed on the skip step roller support seat 5042, and the skip step roller 5043 is in transmission connection with the power output end of the skip step roller drive device 5045. The signal input end of the skip step roller drive device 5045 is electrically connected to the corresponding signal output end of the control device.

[0056] In the above-mentioned paper hot stamping mechanism 5, the hot stamping foil is released from the unwinding device 501, the stepping rollers 5043 and the pressure rollers 5044 in the stepping traction device 504 traction the hot stamping foil, and then it is wound by the winding device 505; during the hot stamping process, according to the length of the hot stamping foil required, the stepping roller driving device 5045 drives the stepping roller 5043 to rotate by a corresponding angle, so that the hot stamping foil and the stepping roller 5043 run synchronously, and the hot stamping foil advances by a corresponding length. When performing cold stamping, the stepping roller 5043 with a corresponding size can be replaced according to the width of the hot stamping foil, and according to the hot stamping position, the stepping roller support seat 5042 is moved on the stepping mechanism support rod 5041 to ensure that the hot stamping position and the amount of hot stamping foil used each time can match the paper hot stamping area, avoiding waste; when it is necessary to use multiple hot stamping foils simultaneously during a single hot stamping process (for example, performing wide-width cold stamping and narrow-width cold stamping simultaneously), the stepping rollers 5043 with corresponding sizes can be replaced in each stepping mechanism, and the positions of the stepping roller support seats 5042 on the stepping mechanism support rod 5041 are adjusted.

[0057] A guiding hole is opened on the stepping roller support seat 5042, the stepping roller support seat 5042 is sleeved on the stepping mechanism support rod 5041 through the guiding hole, and the stepping roller support seat 5042 is fixed on the stepping mechanism support rod 5041 through a locking mechanism. According to the need, the position of the stepping roller support seat 5042 can be adjusted left and right on the stepping mechanism support rod 5041, and after the adjustment is completed, the locking mechanism is used to fix the position of the stepping roller support seat 5042.

[0058] The locking mechanism includes a first screw and a first screw hole opened on the stepping roller support seat 5042. The first screw is threadedly connected to the first screw hole and the end of the first screw rod contacts the stepping mechanism support rod 5041. When adjusting the position of the stepping roller support seat 5042, loosen the first screw, and move the stepping roller support seat 5042 left and right along the stepping mechanism support rod 5041 according to the need, and then tighten the first screw again after the movement is completed; at the same time, when there is interference between different stepping mechanisms, the angle of the stepping roller support seat 5042 can be adjusted circumferentially along the stepping mechanism support rod 5041 so that different stepping roller support seats 5042 are staggered.

[0059] The skipping roller support seat 5042 includes a left support plate 50421 and a right support plate 50422, both of which are provided with guide holes and first screw holes, and the left support plate 50421 and the right support plate 50422 are sleeved side by side on the skipping mechanism support rod 5041; the skipping roller driving device 5045 is installed on the left support plate 50421; the two ends of the skipping roller 5043 and the pressure roller 5044 are rotatably connected to the left support plate 50421 and the right support plate 50422 respectively. With this arrangement, when the skipping roller 5043 of different lengths is replaced according to the length requirement, the distance between the corresponding left support plate 50421 and the right support plate 50422 can be adjusted.

[0060] The skip roller support seat 5042 also includes a left rotating block 5046, a right rotating block 5047 and two second screws 5048. The left rotating block 5046 can be rotatably mounted on the left support plate 50421, and the right rotating block 5047 can be rotatably mounted on the right support plate 50422. The power output end of the skip roller driving device 5045 is transmission-connected with the left rotating block 5046. The left rotating block 5046 is provided with a left mounting post 50461 extending to the right, and the right rotating block 5047 is provided with a right mounting post 50471 extending to the left. The positions of the left mounting post 50461 and the right mounting post 50471 correspond to each other, and the left mounting post 50461 and the right mounting post 50471 are arranged on the left side. A second screw hole 5049 is respectively provided on the side walls of 0471; a left mounting hole is provided in the middle position of the left end surface of the jumping roller 5043, and the left mounting hole matches the shape and size of the left mounting column 50461; a right mounting hole is provided in the middle position of the right end surface of the jumping roller 5043, and the right mounting hole matches the shape and size of the right mounting column 50471; through holes are respectively provided on the side surfaces at both ends of the jumping roller 5043 (the through hole 50431 at the left end is connected with the left mounting hole, and the through hole at the right end is connected with the right mounting hole), and the through holes, the second screws 5048 and the second screw holes 5049 correspond to each other one by one, and the second screws 5048 pass through the corresponding through holes and are threadedly connected with the second screw holes 5049. When installing the skipping roller 5043, the left mounting post 50461 and the right mounting post 50471 can be respectively inserted into the two ends of the skipping roller 5043 through the left mounting hole and the right mounting hole, and then the skipping roller 5043 is locked on the left mounting post 50461 and the right mounting post 50471 using the second screw 5048; this method is convenient for replacing the skipping roller 5043, and the sizes of the mounting holes and through holes are unified, which is suitable for skipping rollers 5043 of different lengths and diameters. The rotation axes of the left rotating block 5046, the skipping roller 5043, and the right rotating block 5047 coincide with each other.

[0061] The above-mentioned skip roller drive device 5045 includes a servo motor and a speed reducer. The servo motor and the speed reducer are fixedly installed on the skip roller support seat 5042. The power output shaft of the servo motor is in transmission connection with the power input shaft of the speed reducer, and the skip roller 5043 is in transmission connection with the power output shaft of the speed reducer.

[0062] The above-mentioned feeder mechanism 2, gluing mechanism 3 and sheet delivery mechanism 7 all adopt the structures of existing hot stamping equipment, which will not be elaborated here.

Claims

1. A cold stamping machine, comprising a frame, a feeder mechanism, a gluing mechanism, a paper conveying mechanism, a paper hot stamping mechanism, a paper receiving mechanism and a control device, wherein the feeder mechanism, the gluing mechanism, the paper conveying mechanism, the paper hot stamping mechanism and the paper receiving mechanism are respectively mounted on the frame, the feeder mechanism, the gluing mechanism, the paper conveying mechanism and the paper receiving mechanism are sequentially arranged from front to back along the conveying direction of the paper, the signal input ends of the feeder mechanism, the gluing mechanism, the paper conveying mechanism, the paper hot stamping mechanism and the paper receiving mechanism are respectively electrically connected to the corresponding signal output ends of the control device, and characterized in that: The paper hot stamping mechanism includes a reeling device, a cold stamping device and a reeling device, which are arranged in sequence from front to back along the conveying direction of the electroplated aluminum; the paper conveying mechanism includes a first conveying device and a second conveying device, which are arranged in sequence from front to back along the conveying direction of the paper; the cold stamping machine also includes a drying mechanism, which includes a pre-drying device and a final drying device, which are respectively installed on the frame, the pre-drying device is arranged above the front end of the first conveying device, the final drying device is arranged above the front end of the second conveying device, and the final drying device faces the cold stamping device; the signal input ends of the pre-drying device and the final drying device are respectively electrically connected to the signal output ends corresponding to the control device.

2. A cold stamping machine according to claim 1, characterized in that: The cold stamping device includes an upper impression roller, a lower impression roller, and a first lifting drive mechanism capable of driving the upper impression roller or the lower impression roller to rise and fall; the unwinding device, the upper impression roller, and the winding device are arranged in sequence from front to back along the conveying direction of the anodized aluminum; the first conveying device, the lower impression roller, the second conveying device, and the paper receiving mechanism are arranged in sequence from front to back along the conveying direction of the paper; the upper impression roller and the lower impression roller are pressed together.

3. A cold stamping machine as claimed in claim 2, characterized in that: The cold foil stamping machine further comprises a paper blowing mechanism, which is arranged between the lower impression cylinder and the second conveying device, and the blowing end of the paper blowing mechanism faces upward.

4. A cold stamping machine as claimed in claim 2, characterized in that: The paper hot stamping mechanism also includes a flattening roller, which is arranged in front of the upper impression roller along the conveying direction of the electroplated aluminum.

5. A cold stamping machine as claimed in claim 1, characterized in that: The paper conveying mechanism also includes a detection device, two lateral push gauge devices and two longitudinal push gauge devices. The detection device, the lateral push gauge device and the longitudinal push gauge device are respectively installed on the frame. The detection device includes two detection sensors. The two detection sensors are arranged side by side on the left and right sides above the first conveying device; the two lateral push gauge devices are respectively arranged on the left and right sides of the first conveying device, and the pushing directions of the two lateral push gauge devices are arranged opposite to each other and are both perpendicular to the conveying direction of the first conveying device; the two longitudinal push gauge devices are arranged side by side on the left and right sides, and the pushing directions of the longitudinal push gauge devices are parallel to the conveying direction of the first conveying device; the signal output end of the detection device is electrically connected to the signal input end corresponding to the control device, and the signal input ends of the lateral push gauge device and the longitudinal push gauge device are respectively electrically connected to the signal output end corresponding to the control device.

6. A cold stamping machine according to claim 1, characterized in that: The paper hot stamping mechanism also includes a skipping traction device, the unwinding device, the cold stamping device, the skipping traction device and the winding device are arranged in sequence from front to back along the conveying direction of the electroplated aluminum, the skipping traction device includes a skipping mechanism support rod and at least one skipping mechanism, the skipping mechanism support rod is arranged along the left and right directions, the skipping mechanism includes a skipping roller support seat, a skipping roller, a pressure roller and a skipping roller driving device capable of driving the skipping roller to rotate, the skipping roller support seat is installed on the skipping mechanism support rod, and the position of the skipping roller support seat on the skipping mechanism support rod is adjustable, the skipping roller is detachably installed on the skipping roller support seat, the pressure roller is rotatably installed on the skipping roller support seat, the skipping roller is pressed together with the pressure roller, the skipping roller is parallel to the skipping mechanism support rod, the skipping roller driving device is installed on the skipping roller support seat, and the skipping roller is transmission-connected to the power output end of the skipping roller driving device; The signal input end of the skip roller driving device is electrically connected to the corresponding signal output end of the control device.

7. A cold stamping machine according to claim 6, characterized in that: The step-jumping traction device comprises a plurality of step-jumping mechanisms, and each step-jumping mechanism is sequentially installed on the step-jumping mechanism support rod from left to right.

8. A cold stamping machine according to claim 6, characterized in that: A guide hole is provided on the jumping roller support seat, and the jumping roller support seat is sleeved on the jumping mechanism support rod through the guide hole, and the jumping roller support seat is fixed to the jumping mechanism support rod through a locking mechanism; the locking mechanism includes a first screw and a first screw hole provided on the jumping roller support seat, the first screw is threadedly connected to the first screw hole, and the end of the first screw rod is in contact with the jumping mechanism support rod.

9. A cold stamping machine according to claim 8, characterized in that: The skipping roller support seat includes a left support plate and a right support plate, both of which are provided with the guide hole and the first screw hole, and the left support plate and the right support plate are arranged side by side on the support rod of the skipping mechanism; the skipping roller driving device is installed on the left support plate or the right support plate; the two ends of the skipping roller and the pressure roller are rotatably connected to the left support plate and the right support plate respectively.

10. A cold stamping machine according to claim 9, characterized in that: The jumping roller support seat also includes a left rotating block, a right rotating block and two second screws, the left rotating block can be rotatably mounted on the left supporting plate, and the right rotating block can be rotatably mounted on the right supporting plate; the power output end of the jumping roller driving device is transmission connected with the left rotating block or the right rotating block; the left rotating block is provided with a left mounting post extending to the right, and the right rotating block is provided with a right mounting post extending to the left, the positions of the left mounting post and the right mounting post correspond, and the side walls of the left mounting post and the right mounting post are respectively provided with a second screw hole; a left mounting hole is provided in the middle position of the left end face of the jumping roller, the left mounting hole matches the shape and size of the left mounting post, and a right mounting hole is provided in the middle position of the right end face of the jumping roller, and the right mounting hole matches the shape and size of the right mounting post; through holes are respectively provided on the side surfaces at both ends of the jumping roller, and the through holes, the second screws and the second screw holes correspond one to one, and the second screws pass through the corresponding through holes and are threadedly connected with the second screw holes.

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