Seamless molding press

Abstract

The utility model discloses a seamless moulding press, and particularly relates to the technical field of packaging film production, the seamless moulding press comprises a supporting seat, the left side and the right side of the front part of the upper end of the supporting seat are both connected with supporting plates, and the upper part and the lower part between the opposite surfaces of the two supporting plates are both rotatably connected with an unwinding roller; the front side of the middle of the upper end of the supporting seat is fixedly connected with a tension adjusting mechanism, the middle of the upper end of the supporting seat is fixedly connected with a deviation rectifying mechanism, the rear side of the middle of the upper end of the supporting seat is fixedly connected with a mold pressing assembly, and the rear side of the upper end of the supporting seat is fixedly connected with a winding assembly. According to the plate-seam-free molding press, the tension of a film material can be detected and adjusted in real time through the arranged tension adjusting mechanism, it is ensured that the film material is accurately attached to the holographic roller, pattern ghosting, blurring or microstructure deformation caused by stretching or loosening of the film material is avoided, and therefore the consistency of the optical diffraction effect of an anti-fake pattern is effectively improved.

Description

Technical Field

[0001] The utility model relates to the technical field of packaging film production, in particular to a seamless die pressing machine. Background Art

[0002] The production of packaging films, especially those used for anti-counterfeiting and hot stamping films for tobacco husk packaging, places extremely high demands on the precision and stability of molding equipment. Traditional molding technology uses templates with seams, resulting in seams in the molded packaging film. This not only seriously affects the film's aesthetics, but also reduces its anti-counterfeiting effectiveness and overall quality. In tobacco husk packaging applications, pattern breakage and misalignment are prone to occur at the seams, making it difficult to meet the requirements of high-end packaging for fine patterns and high anti-counterfeiting performance.

[0003] The rise of laser UV adhesive bonding equipment has demonstrated unique advantages in packaging film embossing. Laser holographic technology can engrave continuous patterns on roller surfaces, enabling seamless embossing and significantly improving pattern accuracy and continuity. However, current laser UV adhesive bonding equipment still faces some pressing challenges when used in the production of tobacco wrapping film.

[0004] On the one hand, packaging film materials are easily affected by tension during the molding process. If the tension is unstable, the film will be stretched, deformed, wrinkled, etc., causing the molded pattern to be distorted, seriously affecting product quality.

[0005] On the other hand, packaging film is prone to deviation during the molding process. Film deviation will cause the molded pattern to deviate from the predetermined position, resulting in a large amount of waste and increased production costs.

[0006] Therefore need a kind of seamless die-cutting machine. Utility Model Content

[0007] The main purpose of the utility model is to provide a seamless die-stamping machine, which can effectively solve the problems raised in the background technology.

[0008] In order to achieve the above purpose, the technical solution adopted by the utility model is:

[0009] A seamless die-pressing machine includes a support base, characterized in that: the left and right sides of the front upper end of the support base are connected to support plates, the upper and lower parts of the opposing surfaces of the two support plates are connected to unwinding rollers for common rotation, the front middle part of the upper end of the support base is fixedly connected to a tension adjustment mechanism, the middle part of the upper end of the support base is fixedly connected to a deviation correction mechanism, the rear middle part of the upper end of the support base is fixedly connected to a die-pressing assembly, and the rear part of the upper end of the support base is fixedly connected to a winding assembly;

[0010] The tension adjustment mechanism includes two fixed plates, the two fixed plates are respectively fixedly connected to the left and right sides of the front upper end of the support seat, the upper front and rear sides between the opposite surfaces of the two fixed plates are rotatably connected with guide rollers, and the upper parts between the opposite surfaces of the two fixed plates are jointly rotatably connected with a rotating rod, the left and right ends of the rotating rod pass through the outer surface of the fixed plate on the same side and extend to the outside and are fixedly connected to a gear set, the two gear sets are respectively composed of two meshing bevel gears, an arc groove is opened in the middle between the opposite surfaces of the two fixed plates, and a tension roller slides together in the inner cavities of the two arc grooves, and the left end of the fixed plate on the left is fixedly connected to a driving assembly;

[0011] The correction mechanism includes a C-shaped frame, which is fixedly connected to the middle part of the upper end of the support seat. A movable groove is opened in the upper part between the opposite surfaces of the vertical parts of the C-shaped frame. The inner cavities of the two movable grooves are movably connected to an adjusting roller. The middle part of the upper end of the C-shaped frame is fixedly connected to a second slide rail. The outer surface of the second slide rail is rotatably connected to the first slide rail. The middle part of the inner cavity of the second slide rail is fixedly connected to a second motor. The left and right sides of the outer surface of the first slide rail are fixedly connected to L-shaped plates.

[0012] Preferably, the driving assembly includes two fixed boxes and two slides, the two fixed boxes are fixedly connected to the lower parts of the ends of the two fixed plates away from each other, the two slides are respectively slidably connected to the ends of the two fixed plates away from each other, the middle parts of the ends of the two slides away from each other are fixedly connected to fixed blocks, the upper ends of the two fixed boxes are rotatably connected to threaded rods, the inner cavity of the fixed box on the left is fixedly connected to a worm gear assembly, and the front part of the inner cavity of the fixed box on the left is fixedly connected to motor 1.

[0013] Preferably, the upper ends of the two threaded rods are respectively fixedly connected to the middle parts of the two horizontal bevel gears, the middle parts of the two fixed blocks are respectively threadedly connected to the outer surfaces of the two threaded rods on the same side, and the left and right ends of the tension roller are respectively slidably connected to the inner cavities of one end of the two slides close to each other.

[0014] Preferably, the lower portions of the ends of the two L-shaped vertical portions that are close to each other are fixedly connected to the left and right ends of the adjusting roller respectively.

[0015] Preferably, the molding assembly includes two guard plates and a three-lamp curing machine, the two guard plates are respectively fixedly connected to the left and right sides of the rear upper end of the support seat, a laser holographic roller is connected between the opposite surfaces of the two guard plates for common rotation, the right end of the guard plate on the right is fixedly connected to the driving mechanism, and the left end of the guard plate on the left is fixedly connected to the UV glue supply box, and the three-lamp curing machine is fixedly connected to the rear side of the middle part of the upper end of the support seat.

[0016] Compared with the prior art, the present invention has the following beneficial effects:

[0017] 1. During use, the utility model can detect and adjust the tension of the film material in real time through the tension adjustment mechanism, ensuring that the film material and the holographic roller are accurately fitted, avoiding pattern ghosting, blurring or microstructure deformation caused by stretching or relaxation of the film material, thereby effectively improving the consistency of the optical diffraction effect of the anti-counterfeiting pattern.

[0018] 2. During use, the present invention can monitor and adjust the edge position of the film material in real time through the set correction component, so that the film material always runs along the predetermined path, ensuring the precise alignment of the holographic anti-counterfeiting pattern, hot stamping graphics, etc. embossed by the laser UV glue, greatly improving the product appearance quality and anti-counterfeiting performance. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0020] Figure 2 This is a schematic diagram of the cross-sectional structure of the tension adjustment mechanism of the present utility model;

[0021] Figure 3 This is a schematic diagram of the cross-sectional structure of the drive assembly of the present utility model;

[0022] Figure 4 This is a schematic diagram of the cross-sectional structure of the skateboard of the present utility model;

[0023] Figure 5 This is a schematic diagram of the cross-sectional structure of the correction mechanism of the present utility model;

[0024] Figure 6 This is a schematic diagram of the cross-sectional structure of the molded component of the present invention;

[0025] Figure 7 This is a schematic diagram of the overall structure of the utility model from another perspective.

[0026] In the figure: 1. Support seat; 2. Support plate; 3. Unwinding roller; 4. Tension adjustment mechanism; 41. Fixed plate; 42. Guide roller; 43. Arc groove; 44. Tension roller; 45. Rotating rod; 46. Gear set; 47. Drive assembly; 471. Fixed box; 472. Motor 1; 473. Worm gear assembly; 474. Threaded rod; 475. Slide plate; 476. Fixed block; 5. Correction mechanism; 51. C-shaped frame; 52. Movable groove; 53. Adjusting roller; 54. Slide rail 1; 55. Slide rail 2; 56. Motor 2; 57. L-shaped plate; 6. Molded assembly; 61. Guard plate; 62. Laser holographic roller; 63. Three-lamp curing machine; 64. UV glue supply box; 65. Drive mechanism; 7. Winding assembly. DETAILED DESCRIPTION

[0027] In order to make the technical means, creative features, objectives and effects achieved by the present invention easier to understand, the present invention is further described below in conjunction with specific implementation methods.

[0028] Example 1, as Figures 1 to 7 As shown, a seamless die-stamping machine includes a support base 1, and support plates 2 are connected to the left and right sides of the upper front end of the support base 1, and unwinding rollers 3 are connected to the upper and lower parts of the opposite surfaces of the two support plates 2 for common rotation. A tension adjustment mechanism 4 is fixedly connected to the front side of the middle upper end of the support base 1, a correction mechanism 5 is fixedly connected to the middle upper end of the support base 1, a molding assembly 6 is fixedly connected to the rear side of the middle upper end of the support base 1, and a winding assembly 7 is fixedly connected to the rear side of the upper end of the support base 1.

[0029] After film is rolled up, the film that has passed through roller 3 is rolled upside down, and film head is connected with the inside of film reel 7 by film tension adjusting mechanism 4, the inside of deviation correcting mechanism 5 and the inside of mould pressing assembly 6 in sequence.

[0030] The specific installation method of the winding assembly 7, the circuit connection method and the control method are all conventional designs, and will not be elaborated in detail in the present invention.

[0031] In order to adjust the tension of the film during the conveying process, the second embodiment is as follows: Figure 2 、 Figure 3 and Figure 4In this solution, the tension adjustment mechanism 4 includes two fixed plates 41, which are respectively fixedly connected to the left and right sides of the front upper end of the support seat 1, and the upper front and rear sides between the opposite surfaces of the two fixed plates 41 are rotatably connected with guide rollers 42. The upper part between the opposite surfaces of the two fixed plates 41 is commonly rotatably connected with a rotating rod 45, and the left and right ends of the rotating rod 45 pass through the outer surface of the fixed plate 41 on the same side and extend to the outside and are fixedly connected with a gear set 46. The two gear sets 46 are respectively composed of two meshing bevel gears, and an arc groove 43 is opened in the middle between the opposite surfaces of the two fixed plates 41. The inner cavities of the two arc grooves 43 slide together with a tension roller 44, and the left end of the fixed plate 41 on the left is fixedly connected with a driving assembly 47.

[0032] In the above, it is first necessary to install a tension sensor in the existing technology on the surface of the two guide rollers 42, so that it can convert the tension change into an electrical signal output, so that the control system inside the drive component 47 can understand the tension state of the film material in real time. This solution will not be elaborated in detail.

[0033] In the above, the film head is first passed through the upper side of the front guide roller 42, the lower side of the tension roller 44 and the upper side of the rear guide roller 42 in sequence through the traction block and then connected to the rear structure. Then, the film material is transported backward on the surface of the guide roller 42 for imprinting. When the film material tension changes, the signal is transmitted into the internal structure of the drive component 47 under the action of the provided tension sensor, so that the internal structure of the winding component 7 starts to move in real time, and the tension roller 44 is driven to slide in the inner cavity of the arc groove 43 under the action of the internal structure of the drive component 47. When the film material is loose, the tension roller 44 is moved away from the guide roller 42 on the same side, so that the tension roller 44 pulls the film material downward, increasing the film material distance between the tension roller 44 and the guide roller 42, thereby achieving the purpose of adjusting the tension.

[0034] In the above, in order to achieve the purpose of driving the tension roller 44 to slide in the inner cavity of the arc groove 43, reference is made to Figure 2 、 Figure 3 and Figure 4 In this solution, the driving assembly 47 includes two fixed boxes 471 and two slides 475. The two fixed boxes 471 are fixedly connected to the lower part of the end of the two fixed plates 41 away from each other. The two slides 475 are respectively slidably connected to the end of the two fixed plates 41 away from each other. The middle parts of the ends of the two slides 475 away from each other are fixedly connected with fixed blocks 476. The upper ends of the two fixed boxes 471 are rotatably connected with threaded rods 474. The inner cavity of the fixed box 471 on the left is fixedly connected with a worm gear assembly 473, and the front part of the inner cavity of the fixed box 471 on the left is fixedly connected with a motor 1 472.

[0035] Furthermore, the upper ends of the two threaded rods 474 are respectively fixedly connected to the middle parts of the two horizontal bevel gears, and the middle parts of the two fixed blocks 476 are respectively threadedly connected to the outer surfaces of the two threaded rods 474 on the same side, and the left and right ends of the tension roller 44 are respectively slidably connected to the inner cavities of the two slides 475 that are close to each other.

[0036] In the above, the tension signal is transmitted to the motor 472 through the tension sensor, so that the motor 472 drives the worm inside the worm gear assembly 473 to rotate, and the rotation of the worm drives the worm wheel to rotate at the same time, so that the rotation of the worm wheel drives the upper threaded rod 474 to rotate, and then the threaded rod 474 rotates while driving the upper bevel gear to rotate, and the rotation of the bevel gear drives the upper rotating rod 45 to rotate, so that the rotating rod 45 drives the bevel gears on both sides to rotate at the same time, thereby driving the two threaded rods 474 to rotate at the same time, and the two threaded rods 474 rotate while driving the two fixed blocks 476 to slide on their surfaces, thereby driving the two slides 475 to slide, and when the slide 475 slides, it drives the tension roller 44 to slide in its inner cavity, so that the tension roller 44 slides along the inner cavity of the arc groove 43, thereby achieving the purpose of adjusting the tension.

[0037] Specifically, in order to achieve the purpose of correcting the deviation of the membrane material, refer to Figure 5 In this solution, the correction mechanism 5 includes a C-shaped frame 51, which is fixedly connected to the middle part of the upper end of the support seat 1. A movable groove 52 is provided in the upper part between the opposite surfaces of the vertical part of the C-shaped frame 51. The inner cavities of the two movable grooves 52 are jointly movably connected to an adjusting roller 53. The middle part of the upper end of the C-shaped frame 51 is fixedly connected to a second slide rail 55. The outer surface of the second slide rail 55 is rotatably connected to a first slide rail 54. The middle part of the inner cavity of the second slide rail 55 is fixedly connected to a second motor 56. The left and right sides of the outer surfaces of the first slide rail 54 are fixedly connected.

[0038] Furthermore, the lower portions of the ends of the two L-shaped plates 57 where the vertical portions are close to each other are fixedly connected to the left and right ends of the adjusting roller 53 respectively.

[0039] In the above, it is first necessary to install a conventional visual sensor on the inner surface of the C-frame 51 to monitor the position of the film material on the upper surface of the adjusting roller 53 in real time through the visual sensor. This solution will not be elaborated in detail.

[0040] In the above, when the film material passes through the upper surface of the adjusting roller 53 and deviates from the preset path, the visual sensor transmits the signal to the processor, and the processor controls the motor 2 56 to make the motor 2 56 run and drive the slide rail 1 54 to rotate on the upper surface of the slide rail 2 55, and then the slide rail 1 54 rotates to drive the two L-shaped plates 57 to rotate synchronously, so that the vertical parts of the two L-shaped plates 57 drive the adjusting roller 53 to slide in the inner cavity of the movable groove 52, so that the adjusting roller 53 is in an inclined state, and the adjusting roller 53 drives the surface film material to tilt toward the preset position, thereby achieving the purpose of correction.

[0041] The middle part of the inner cavity of the above-mentioned slide rail 2 55 is provided with an accommodating cavity for installing the motor 2 56 , and the surface of the slide rail 2 55 is sleeved with the slide rail 1 54 so that the slide rail 1 54 can rotate on the upper surface of the slide rail 2 55 .

[0042] The width of both ends of the adjusting roller 53 is smaller than the vertical parts of the two C-shaped frames 51. When the adjusting roller 53 is tilted, the edge of the adjusting roller 53 will not touch the inner wall of the C-shaped frame 51, thereby not affecting the rotation of the adjusting roller 53 when tilting.

[0043] Specifically, in order to achieve the purpose of imprinting the film material, refer to Figure 6 In this solution, the molding assembly 6 includes two guard plates 61 and a three-lamp curing machine 63. The two guard plates 61 are respectively fixedly connected to the left and right sides of the rear upper end of the support seat 1. A laser holographic roller 62 is connected to the opposite surfaces of the two guard plates 61 for common rotation. The right end of the guard plate 61 on the right is fixedly connected to a driving mechanism 65, and the left end of the guard plate 61 on the left is fixedly connected to a UV glue supply box 64. The three-lamp curing machine 63 is fixedly connected to the rear middle part of the upper end of the support seat 1.

[0044] In the above, the film material passes through the lower surface of the laser holographic roller 62, and then the internal structure of the driving mechanism 65 is started to drive the laser holographic roller 62 to rotate. At the same time, UV glue is continuously input into the laser holographic roller 62 through the UV glue supply box 64, so that the UV glue and the continuous image and text on the surface of the laser holographic roller 62 are imprinted on the surface of the film material while the laser holographic roller 62 rotates. At the same time, the three-lamp curing machine 63 is started to irradiate and cure the bottom of the film material, and then the film material after imprinting is reeled up by the reeling component 7.

[0045] The stamping process and internal structure of the molded component 6 described above are conventional designs in the prior art and will not be elaborated in detail in the present invention.

[0046] It should be noted that the specific installation method of the winding assembly 7, the circuit connection method and the control method used in the present invention are all conventional designs and will not be elaborated in detail in the present invention.

[0047] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions are merely illustrative of the principles of the present invention. Various changes and improvements may be made to the present invention without departing from the spirit and scope of the present invention. Such changes and improvements are intended to fall within the scope of the present invention. The scope of protection claimed in this invention is defined by the appended claims and their equivalents.

Claims

1. A seamless die-stamping machine, comprising a support base (1), characterized in that: The left and right sides of the front upper end of the support seat (1) are both connected to support plates (2), and the upper and lower parts of the two opposing surfaces of the support plates (2) are both rotatably connected to unwinding rollers (3), the front side of the middle upper end of the support seat (1) is fixedly connected to a tension adjustment mechanism (4), the middle upper end of the support seat (1) is fixedly connected to a deviation correction mechanism (5), the rear side of the middle upper end of the support seat (1) is fixedly connected to a molded component (6), and the rear side of the upper end of the support seat (1) is fixedly connected to a winding component (7); The tension adjustment mechanism (4) includes two fixed plates (41), the two fixed plates (41) are respectively fixedly connected to the left and right sides of the front upper end of the support seat (1), the front and rear sides of the upper parts between the opposite surfaces of the two fixed plates (41) are rotatably connected to guide rollers (42), the upper parts between the opposite surfaces of the two fixed plates (41) are jointly rotatably connected to a rotating rod (45), the left and right ends of the rotating rod (45) both penetrate the outer surface of the fixed plate (41) on the same side and extend to the outside and are fixedly connected to a gear set (46), the two gear sets (46) are respectively composed of two meshing bevel gears, an arc groove (43) is opened in the middle between the opposite surfaces of the two fixed plates (41), and a tension roller (44) slides together in the inner cavity of the two arc grooves (43), and the left end of the fixed plate (41) on the left is fixedly connected to a driving component (47); The correction mechanism (5) includes a C-shaped frame (51), the C-shaped frame (51) is fixedly connected to the middle of the upper end of the support seat (1), a movable groove (52) is opened at the upper part between the opposite surfaces of the vertical part of the C-shaped frame (51), and the inner cavities of the two movable grooves (52) are movably connected to the adjustment roller (53), the middle of the upper end of the C-shaped frame (51) is fixedly connected to the second slide rail (55), the outer surface of the second slide rail (55) is rotatably connected to the first slide rail (54), the middle of the inner cavity of the second slide rail (55) is fixedly connected to the second motor (56), and the left and right sides of the outer surface of the first slide rail (54) are fixedly connected to the L-shaped plate (57).

2. A seamless die-cutting machine according to claim 1, characterized in that: The driving assembly (47) includes two fixed boxes (471) and two slides (475), the two fixed boxes (471) are fixedly connected to the lower parts of the ends of the two fixed plates (41) away from each other, the two slides (475) are respectively slidably connected to the ends of the two fixed plates (41) away from each other, the middle parts of the ends of the two slides (475) away from each other are fixedly connected to fixed blocks (476), the upper ends of the two fixed boxes (471) are rotatably connected to threaded rods (474), the inner cavity of the fixed box (471) on the left is fixedly connected to a worm gear assembly (473), and the front part of the inner cavity of the fixed box (471) on the left is fixedly connected to a motor 1 (472).

3. The seamless die-cutting machine according to claim 2, characterized in that: The upper ends of the two threaded rods (474) are respectively fixedly connected to the middle parts of the two horizontal bevel gears, the middle parts of the two fixed blocks (476) are respectively threadedly connected to the outer surfaces of the two threaded rods (474) on the same side, and the left and right ends of the tension roller (44) are respectively slidably connected to the inner cavities of the two slides (475) at one end close to each other.

4. The seamless die-cutting machine according to claim 1, characterized in that: The lower parts of the ends of the two L-shaped plates (57) vertical parts close to each other are fixedly connected to the left and right ends of the adjusting roller (53) respectively.

5. The seamless die-cutting machine according to claim 1, characterized in that: The molding assembly (6) includes two guard plates (61) and a three-lamp curing machine (63). The two guard plates (61) are fixedly connected to the left and right sides of the rear upper end of the support base (1), respectively. A laser holographic roller (62) is connected to the opposite surfaces of the two guard plates (61) for common rotation. The right end of the guard plate (61) located on the right is fixedly connected to a driving mechanism (65), and the left end of the guard plate (61) located on the left is fixedly connected to a UV glue supply box (64). The three-lamp curing machine (63) is fixedly connected to the rear middle part of the upper end of the support base (1).

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