Plastic part plane hot stamping device

Abstract

The utility model discloses a plastic part plane hot stamping device, and belongs to the technical field of plastic part machining equipment. The hot stamping device mainly comprises a machining table, a workpiece containing assembly is installed on the top face of the machining table, a supporting arm is installed on the portion, on one side of the workpiece containing assembly, of the top face of the machining table, a mounting plate is installed at the top of the supporting arm, a hot stamping assembly is installed on the mounting plate, and tin foil collecting and releasing assemblies are fixedly installed on the two side walls of the mounting plate correspondingly. The supporting frame is fixedly mounted on the side wall of the mounting plate, the winding and unwinding barrel and the guide mechanism are rotationally mounted in the supporting frame, the position adjusting mechanism is fixedly mounted on the inner side wall of the supporting frame, and the tightness of the tension adjusting mechanism can be automatically adjusted according to the tension change of tinfoil paper in the hot stamping process through the tension adjusting mechanism by means of a torsion spring, a rotating plate and other structures. The tin foil paper is ensured to keep proper tension all the time, the conditions of wrinkling, shifting or snapping and the like are avoided, the hot stamping effect is effectively guaranteed, and the product percent of pass and the production efficiency are improved.

Description

TECHNICAL FIELD

[0001] The application relates to the technical field of plastic part processing equipment, in particular to a plastic part plane hot stamping device. BACKGROUND

[0002] The existing plastic part plane hot stamping device is mainly used for hot stamping patterns, characters and the like on tin foil paper onto the plane of a plastic part to realize decoration, marking and the like on the surface of the plastic part.

[0003] However, the tin foil paper control in the hot stamping process has defects, the position of the tin foil paper is difficult to flexibly adjust in the conveying process, and the tightness thereof cannot be automatically adjusted according to the hot stamping condition; when the tin foil paper is too loose, wrinkles and displacement may occur, and when the tin foil paper is too tight, it is easy to be broken; both the two conditions will affect the hot stamping effect, leading to problems such as blurred and incomplete patterns, and reducing product qualification rate and production efficiency.

[0004] In addition, the positioning and movement of the plastic part are not accurate enough; in the existing device, accurate positioning means is lacked in the placing and moving process of the plastic part, it is difficult to ensure that the plastic part is accurately positioned at the hot stamping station every time, which may lead to hot stamping position deviation and affect the hot stamping quality.

[0005] Therefore, it is necessary to provide a plastic part plane hot stamping device to solve the above problems.

[0006] It should be noted that the above information disclosed in the background section of the present application is only used to understand the background of the present application, and therefore, it can contain information which does not constitute prior art. CONTENT OF THE UTILITY MODEL

[0007] The utility model aims at providing a plastic part plane hot stamping device to solve the problems in the background.

[0008] The technical scheme adopted by the application to solve the technical problems is as follows:

[0009] A plastic part plane hot stamping device, comprising a processing table, a workpiece placing assembly is installed on the top surface of the processing table;

[0010] A supporting arm is installed on the top surface of the processing table on one side of the workpiece placing assembly, a mounting plate is installed on the top of the supporting arm, and a hot stamping assembly is installed on the mounting plate;

[0011] A tin foil receiving and releasing assembly is fixedly installed on the side walls on both sides of the mounting plate, the tin foil receiving and releasing assembly comprises a supporting frame, a receiving and releasing cylinder, a guide mechanism, a position adjusting mechanism and a tightness adjusting mechanism, the supporting frame is fixedly installed on the side wall of the mounting plate, the receiving and releasing cylinder and the guide mechanism are both rotationally installed in the interior of the supporting frame, and the position adjusting mechanism is fixedly installed on the inner side wall of the supporting frame;

[0012] The tension adjusting mechanism comprises rotating plates, a rotating rod, a torsion spring and a fifth guide roller, one end of the two rotating plates is rotatably connected with two ends of the fifth guide roller, the other end of the two rotating plates is fixedly connected with the side wall of the rotating rod, two ends of the rotating rod are rotatably connected with the support frame, one end of the torsion spring is inserted with the side wall of the rotating plate, the other end of the torsion spring is inserted with the side wall of the support frame, and the torsion spring is sleeved on the rotating rod.

[0013] Preferably, the guide mechanism comprises a first guide roller, a second guide roller and a third guide roller, the first guide roller, the second guide roller and the third guide roller are rotatably connected inside the support frame.

[0014] The tin foil is half-wrapped around the side wall of the first guide roller, the second guide roller and the third guide roller when being unwound or recovered from the winding and unwinding drum.

[0015] Preferably, the position adjusting mechanism comprises a track, a sliding block, a limiting knob and a fourth guide roller, the track is fixedly connected with the inner side wall of the support frame, the sliding block is slidably connected with the track, the limiting knob is threadedly connected with the sliding block, the end of the limiting knob is in abutment with the inner surface of the track, and the fourth guide roller is rotatably connected with the side wall of the sliding block.

[0016] Preferably, the workpiece placing assembly comprises a support table, a driving assembly and a placing table, the support table is mounted on the top surface of the machining table, the inner portion of the support table is provided with an inner cavity, the driving assembly is rotatably connected in the inner cavity, and the placing table is mounted on the top surface of the support table and slidably connected with the support table by the driving of the driving assembly.

[0017] Preferably, the side wall of the support table is provided with a photoelectric sensor, the side wall of the placing table is fixedly provided with a shielding plate, and the shielding plate slides through the detection groove of the photoelectric sensor during the movement of the placing table on the support table.

[0018] Preferably, the hot stamping assembly comprises an air cylinder, a moving plate, a connecting rod and a heating plate, the air cylinder is fixedly connected with the top surface of the mounting plate, the top surface of the moving plate is fixedly connected with the telescopic shaft of the air cylinder, and the bottom surface of the moving plate is fixedly connected with the heating plate through the connecting rod.

[0019] Preferably, the two sides of the top surface of the moving plate are fixedly provided with guide rods, the two sides of the top surface of the mounting plate are fixedly provided with guide sleeves, and the guide rods are slidably connected in the guide sleeves.

[0020] The beneficial effects of the present application are:

[0021] 1、The technical scheme is characterized in that the position adjusting mechanism in the tin foil winding and unwinding assembly is used to flexibly adjust the position of the fourth guide roller, so that the position of the tin foil paper is accurately adjusted, the tension adjusting mechanism is used to automatically adjust the tightness of the tin foil paper according to the tension change of the tin foil paper in the hot stamping process by means of the torsion spring and the rotating plate, the tin foil paper always maintains appropriate tension, and the hot stamping effect is effectively ensured, and the product qualification rate and the production efficiency are improved.

[0022] 2、The photoelectric sensor and the shielding plate in the workpiece placing assembly are matched, so that the accurate positioning of the plastic workpiece to be hot stamped is realized, at the same time, the stability of the sliding direction of the placing table is ensured by the design of the sliding seat and the guide rail, and the plastic workpiece is prevented from shaking and deviating during movement, so that the accuracy and consistency of hot stamping are significantly improved, and hot stamping quality problems caused by inaccurate positioning and unstable movement are effectively avoided.

[0023] In addition to the purposes, features and advantages described above, the present application has other purposes, features and advantages. The present application will be described in detail below with reference to the drawings. BRIEF DESCRIPTION OF DRAWINGS

[0024] The drawings accompanying the specification of the present application form a part of the present application, the illustrative embodiments of the present application and their descriptions serve to explain the present application, and do not constitute an improper limitation on the present application.

[0025] In the drawings:

[0026] Figure 1 It is a whole schematic view of the plastic part plane hot stamping device of the utility model;

[0027] Figure 2 It is a workpiece placing assembly structure schematic view of the utility model;

[0028] Figure 3 It is a workpiece placing assembly internal structure schematic view of the utility model;

[0029] Figure 4 It is a hot stamping assembly and tin foil winding and unwinding assembly assembly structure schematic view of the utility model;

[0030] Figure 5 It is a tin foil winding and unwinding assembly structure schematic view of the utility model;

[0031] Figure 6 It is a tin foil paper transmission path structure schematic view of the utility model.

[0032] In the drawings, various reference signs are:

[0033] 1, processing table;

[0034] 2, workpiece placement assembly; 21, support table; 22, inner cavity; 23, drive assembly; 231, stepper motor; 232, synchronous wheel; 233, synchronous belt; 234, moving seat; 235, sliding seat; 236, guide rail; 24, photoelectric sensor; 25, placement table; 26, shielding plate;

[0035] 3, support arm;

[0036] 4, mounting plate;

[0037] 5, hot stamping assembly; 51, air cylinder; 52, moving plate; 53, guide rod; 54, guide sleeve; 55, connecting rod; 56, heating plate;

[0038] 6, tin foil winding and unwinding assembly; 61, support frame; 62, winding and unwinding drum; 63, first guide roller; 64, second guide roller; 65, third guide roller; 66, track; 67, sliding block; 68, limit knob; 69, fourth guide roller; 610, rotating plate; 611, rotating rod; 612, torsion spring; 613, fifth guide roller;

[0039] 7, to be hot stamped plastic part;

[0040] 8, tin foil paper. DETAILED DESCRIPTION

[0041] It should be noted that the embodiments in the present application and the features in the embodiments can be combined with each other without conflict. The technical solutions in the embodiments of the present application will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0042] In order to enable those skilled in the art to better understand the present application, the technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, not all. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor should be within the scope of protection of the present application.

[0043] Please refer to Figures 1-6 , the embodiments provided by the utility model:

[0044] As Figure 1 shown, a plastic part plane hot stamping device, including processing table 1, the top surface of processing table 1 is provided with workpiece placement assembly 2, as Figure 2As shown, the workpiece placement assembly 2 includes a support platform 21, a drive assembly 23, and a placement platform 25. The support platform 21 is installed on the top surface of the processing table 1. An inner cavity 22 is opened inside the support platform 21. The drive assembly 23 is rotatably installed in the inner cavity 22. The placement platform 25 is installed on the top surface of the support platform 21. The placement platform 25 is slidably installed on the support platform 21 by the drive of the drive assembly 23.

[0045] Among them, such as Figure 3 As shown, the drive assembly 23 includes a stepper motor 231, a synchronous pulley 232, a synchronous belt 233, a moving base 234, a slide block 235, and a guide rail 236. The stepper motor 231 is mounted on the bottom of the support platform 21. The stepper motor 231 can be a 42 series stepper motor. There are two synchronous pulleys 232, which are connected by a synchronous belt 233. One of the synchronous pulleys 232 is keyed to the output shaft of the stepper motor 231, and the two synchronous pulleys 232 are rotatably mounted in the inner cavity 22 through bearing seats, so that the stepper motor 231 can drive the synchronous pulleys 232 to drive the synchronous belt 233 to rotate in the inner cavity 22. The moving base 234 is fixedly mounted inside the synchronous belt 236. On one side wall of the synchronous belt 233, and the top surface of the movable seat 234 is fixedly installed with the placement table 25, the placement table 25 is driven to slide on the support table 21 by the movement of the synchronous belt 233, so as to move the plastic part 7 to be hot-stamped installed on the placement table 25, so that the plastic part 7 to be hot-stamped can slide out or slide in from the work station. Furthermore, in order to ensure the stability of the sliding direction of the placement table 25, the bottom two sides of the placement table 25 are fixedly installed with slide seats 235 respectively, and the two sides of the inner cavity 22 are installed with guide rails 236. The slide seats 235 are slidably installed on the guide rails 236, so that the placement table 25 can move stably on the support table 21, so as to better transport out or transport in the plastic part 7 to be hot-stamped.

[0046] In order to ensure that the plastic part 7 to be hot-stamped is in the working position on the placement table 25, a photoelectric sensor 24 is installed on the side wall of the support table 21. The photoelectric sensor 24 can be of model E3Z-T61. A baffle plate 26 is fixedly installed on the side wall of the placement table 25. During the movement of the placement table 25 on the support table 21, the baffle plate 26 slides through the detection slot of the photoelectric sensor 24. When the baffle plate 26 is in the detection slot of the photoelectric sensor 24, it sends an electrical signal to the controller, so that the controller controls the stepper motor 231 to stop rotating, thereby making the placement table 25 in the working position to be processed.

[0047] like Figure 4As shown, the support arm 3 is installed on the top surface of the machining table 1 on one side of the workpiece placing assembly 2, the top of the support arm 3 is provided with a mounting plate 4, the mounting plate 4 is provided with a hot stamping assembly 5, the hot stamping assembly 5 comprises a pneumatic cylinder 51, a moving plate 52, a connecting rod 55 and a heating plate 56, the pneumatic cylinder 51 is fixedly installed on the top surface of the mounting plate 4, the top surface of the moving plate 52 is fixedly installed with the telescopic shaft of the pneumatic cylinder 51, the bottom surface of the moving plate 52 is fixedly installed with the heating plate 56 through the connecting rod 55, the two sides of the top surface of the moving plate 52 are fixedly installed with guide rods 53, and the two sides of the top surface of the mounting plate 4 are fixedly installed with guide sleeves 54, the guide rods 53 are slidingly connected in the guide sleeves 54.

[0048] The telescopic shaft of the pneumatic cylinder 51 is controlled to extend or retract by a controller, the controller can be of TMCM-6110 model, the pneumatic cylinder 51 can be of C85 series, so that the moving plate 52 can move up and down in the vertical direction on the support arm 3, and the heating plate 56 can move close to or away from the installed plastic part 7 to be hot stamped on the placing table 25, so that the plastic part 7 to be hot stamped can be hot stamped.

[0049] In this process, a tin foil winding and unwinding assembly 6 is fixedly installed on the two side walls of the mounting plate 4, the tin foil winding and unwinding assembly 6 comprises a support frame 61, winding and unwinding drums 62, a guide mechanism, a position adjusting mechanism and a tightness adjusting mechanism, the support frame 61 is fixedly installed on the side wall of the mounting plate 4, and the winding and unwinding drums 62 and the guide mechanism are both rotatably installed in the support frame 61, wherein one winding and unwinding drum 62 is used to install the tin foil paper 8 which has not been hot stamped, and the other winding and unwinding drum 62 is used to wind the used tin foil paper 8, the winding and unwinding drum 62 for winding the used tin foil paper 8 is provided with a stepping motor 231, so that the winding and unwinding drum 62 rotates to recycle the used tin foil paper 8.

[0050] As shown in the figure, Figure 5 The guide mechanism comprises first guide rollers 63, second guide rollers 64 and third guide rollers 65, the first guide rollers 63, the second guide rollers 64 and the third guide rollers 65 are all rotatably installed in the support frame 61, the tin foil paper 8 unwound or recycled from the winding and unwinding drums 62 is half-wrapped around the side walls of the first guide rollers 63, the second guide rollers 64 and the third guide rollers 65, and the first guide rollers 63, the second guide rollers 64 and the third guide rollers 65 guide the tin foil paper 8 to transmit along a certain path.

[0051] As shown in the figure, Figure 5As shown, the position adjusting mechanism is fixedly installed on the inner side wall of the support frame 61, and comprises a track 66, a sliding block 67, a limiting knob 68 and a fourth guide roller 69. The track 66 is fixedly installed on the inner side wall of the support frame 61, and the sliding block 67 is slidingly installed on the track 66. The threaded rod of the limiting knob 68 is threadedly connected with the inside of the sliding block 67, and the end of the threaded rod of the limiting knob 68 abuts against the inner surface of the track 66. The fourth guide roller 69 is rotatably installed on the side wall of the sliding block 67. By loosening or tightening the limiting knob 68, the position of the sliding block 67 on the track 66 is adjusted, the position of the fourth guide roller 69 on the support frame 61 is adjusted, and the distance to the third guide roller 65 is adjusted, so as to adjust the position of the tin foil paper 8.

[0052] As shown in Figure 5 , the tension adjusting mechanism comprises a rotating plate 610, a rotating rod 611, a torsion spring 612 and a fifth guide roller 613. The rotating plate 610 is provided with two ends rotatably installed with the two ends of the fifth guide roller 613, and the other ends are fixedly connected with the side wall of the rotating rod 611. The two ends of the rotating rod 611 are rotatably installed on the support frame 61. One end of the torsion spring 612 is inserted with the side wall of the rotating plate 610, and the other end is inserted with the side wall of the support frame 61. The torsion spring 612 is sleeved on the rotating rod 611. When the tension of the tin foil paper 8 changes, the fifth guide roller 613 rotates under the action of the torsion spring 612, and the tension of the tin foil paper 8 is automatically adjusted through the transmission of the rotating plate 610 and the rotating rod 611.

[0053] Specifically, as shown in Figure 5 and Figure 6 , the tin foil paper 8 is unwound from the tin foil take-up and pay-off assembly 6 on one side of the mounting plate 4, guided by the fifth guide roller 613 on one side, and then wound on the fifth guide roller 613 on the other side of the tin foil take-up and pay-off assembly 6, so as to be recycled by the other side of the tin foil take-up and pay-off assembly 6. The tin foil paper 8 between the two fifth guide rollers 613 passes under the heating plate 56. When the heating plate 56 moves downward, it acts on the tin foil paper 8 to cause the tin foil paper 8 to be hot stamped on the plastic part 7 to be hot stamped. In this process, due to the downward tension of the heating plate 56 on the tin foil paper 8, the rotating plate 610 on the fifth guide roller 613 rotates on the support frame 61 with the rotating rod 611 as the center, and the tension of the tin foil paper 8 is maintained by the elastic force of the torsion spring 612, so that the tin foil paper 8 maintains appropriate tension during hot stamping. At the same time, when the heating plate 56 moves upward and does not cause tension on the tin foil paper 8, the tin foil paper 8 can also maintain tension through the elastic force of the torsion spring 612, thereby avoiding the influence of the hot stamping effect due to the tin foil paper 8 being too loose or too tight.

[0054] The above descriptions are only the preferred embodiments of the present application, and are not intended to limit the present application. The present application can have various modifications and changes for those skilled in the art. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A device for flat stamping of plastic parts, comprising a working table (1), characterized in that: The top surface of the processing table (1) is provided with a workpiece placing assembly (2); A supporting arm (3) is installed on the top surface of the processing table (1) on one side of the workpiece placing assembly (2), and a mounting plate (4) is installed on the top of the supporting arm (3), and a hot stamping assembly (5) is installed on the mounting plate (4); A tin foil winding and unwinding assembly (6) is fixedly installed on the side walls of the mounting plate (4) respectively, and the tin foil winding and unwinding assembly (6) comprises a supporting frame (61), a winding and unwinding drum (62), a guide mechanism, a position adjusting mechanism and a tightness adjusting mechanism, the supporting frame (61) is fixedly installed on the side wall of the mounting plate (4), the winding and unwinding drum (62) and the guide mechanism are both rotationally installed in the inside wall of the supporting frame (61), and the position adjusting mechanism is fixedly installed on the inside wall of the supporting frame (61). The tightness adjusting mechanism comprises a rotating plate (610), a rotating rod (611), a torsion spring (612) and a fifth guide roller (613), one end of the rotating plate (610) is rotationally installed with the fifth guide roller (613), the other end of the rotating plate (610) is fixedly connected with the side wall of the rotating rod (611), the two ends of the rotating rod (611) are rotationally installed on the supporting frame (61), one end of the torsion spring (612) is inserted into the side wall of the rotating plate (610), the other end of the torsion spring (612) is inserted into the side wall of the supporting frame (61), and the torsion spring (612) is sleeved on the rotating rod (611).

2. A flat stamping device for plastic parts according to claim 1, characterized in that: The guide mechanism comprises a first guide roller (63), a second guide roller (64) and a third guide roller (65), and the first guide roller (63), the second guide roller (64) and the third guide roller (65) are all rotationally installed in the inside wall of the supporting frame (61). The tin foil paper (8) unwound or recovered from the winding and unwinding drum (62) is half-wrapped around the side walls of the first guide roller (63), the second guide roller (64) and the third guide roller (65) respectively.

3. A flat stamping device for plastic parts according to claim 1, characterized in that: The position adjusting mechanism comprises a track (66), a sliding block (67), a limiting knob (68) and a fourth guide roller (69), the track (66) is fixedly installed on the inside wall of the supporting frame (61), the sliding block (67) is slidingly installed on the track (66), the limiting knob (68) is screw-connected with the inside of the sliding block (67), the end of the limiting knob (68) is in abutment with the inner surface of the track (66), and the fourth guide roller (69) is rotationally installed on the side wall of the sliding block (67).

4. A flat stamping device for plastic parts according to claim 1, characterized in that: The workpiece placing assembly (2) comprises a support table (21), a driving assembly (23) and a placing table (25), the support table (21) is installed on the top surface of the machining table (1), an inner cavity (22) is formed in the support table (21), the driving assembly (23) is rotatably installed in the inner cavity (22), and the placing table (25) is slidably installed on the top surface of the support table (21) and driven by the driving assembly (23).

5. A flat stamping device for plastic parts according to claim 4, characterized in that: An optoelectronic sensor (24) is installed on the side wall of the support table (21), a shielding plate (26) is fixedly installed on the side wall of the placing table (25), and the shielding plate (26) slides through the detection groove of the optoelectronic sensor (24) during the movement of the placing table (25) on the support table (21).

6. A flat stamping device for plastic parts according to claim 1, characterized in that: The hot stamping assembly (5) comprises a gas cylinder (51), a moving plate (52), a connecting rod (55) and a heating plate (56), the gas cylinder (51) is fixedly installed on the top surface of the mounting plate (4), the top surface of the moving plate (52) is fixedly installed on the telescopic shaft of the gas cylinder (51), and the bottom surface of the moving plate (52) is fixedly installed on the heating plate (56) through the connecting rod (55).

7. A flat stamping device for plastic parts according to claim 6, characterized in that: The top surface of the moving plate (52) is fixedly installed with guide rods (53) on both sides, the top surface of the mounting plate (4) is fixedly installed with guide sleeves (54) on both sides, and the guide rods (53) are slidably connected in the guide sleeves (54).

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