Automatic label tearing device for heat transfer printing equipment

Abstract

The utility model discloses an automatic label tearing device for heat transfer printing equipment, which comprises a mounting rack, a left width adjusting plate and a right width adjusting plate are arranged in the mounting rack, a guide shaft is mounted on the mounting rack, and the left width adjusting plate and the right width adjusting plate are mounted on the guide shaft in a sliding manner; a two-way screw rod is rotationally mounted on the mounting frame; the left width adjusting plate and the right width adjusting plate are respectively provided with a screw rod nut matched with the two-way screw rod; the installation frame is provided with a stepping motor used for driving the two-way lead screw to rotate. The left width adjusting plate and the right width adjusting plate are each provided with a label clamping assembly used for clamping a heat transfer printing film. According to the automatic label tearing device, the distance between the two label clamping assemblies is adjusted by rotating the two-way lead screw according to heat transfer printing films of different sizes, so that the purpose of accurately clamping labels is achieved, and the application range is wider.

Description

Technical Field

[0001] The utility model belongs to the field of heat transfer equipment, and specifically relates to an automatic label tearing device for heat transfer equipment. Background Art

[0002] At present, heat transfer equipment is generally used to transfer logos to fabrics. After heat printing, the base film of the printed label needs to be torn off from the fabric to complete the heat transfer process. Workers need to manually tear the labels. With a large quantity of products, the number of workers required will increase significantly, which is time-consuming and laborious, and the work efficiency is low.

[0003] The invention patent with the patent number 202111070159.7 discloses a heat transfer equipment, including a rotary workbench, a heat transfer head, a feeding mechanism, a label feeding mechanism, a label tearing mechanism and a discharging mechanism; workers place the fabric to be labeled on the working panel of the rotary workbench at the feeding station; the rotary workbench rotates and transports the fabric to the labeling station, the label feeding mechanism automatically feeds the label to the labeling station and places it at the label position of the fabric, and the heat transfer head thermally presses the label to transfer the logo of the label to the fabric; the rotary workbench rotates and transports the fabric that has been transferred to the discharging station, the label tearing mechanism first tears off the base film of the label from the fabric, and then the discharging mechanism knocks off the fabric from the working panel to complete the heat transfer process.

[0004] There are certain defects in the disclosed content of this patent. The label tearing mechanism of this equipment only includes a label clamping mechanism, which has higher working efficiency for some fabrics with fixed sizes, but there will be errors in clamping labels of different sizes. At this time, manual calibration and adjustment of the machine are required, which affects the operation of the machine and reduces the work efficiency. Summary of the Invention

[0005] Aiming at the technical problem that the existing label tearing mechanism cannot tear a large heat transfer film, the utility model provides an automatic label tearing device for heat transfer equipment, which can adapt to label tearing operations of different sizes by automatically controlling the distance between the left width adjusting plate and the right width adjusting plate.

[0006] The technical solution adopted by the utility model to solve the above technical problems is: an automatic label tearing device for heat transfer equipment, including a mounting frame. A left width adjusting plate and a right width adjusting plate are arranged inside the mounting frame. The mounting frame is provided with a guiding shaft, and the left width adjusting plate and the right width adjusting plate are slidably mounted on the guiding shaft; a bidirectional lead screw is rotatably mounted on the mounting frame, and the left width adjusting plate and the right width adjusting plate are respectively provided with lead screw nuts cooperating with the bidirectional lead screw; the mounting frame is provided with a stepping motor for driving the bidirectional lead screw to rotate; the left width adjusting plate and the right width adjusting plate are respectively provided with label clamping components for clamping the heat transfer film.

[0007] To optimize the above technical solution, the utility model also includes the following improved technical solutions.

[0008] The above mounting frame is slidably mounted on the lifting bottom plate, and the lifting bottom plate is connected with a first air cylinder for driving the mounting frame to move up and down.

[0009] At the bottoms of the above-mentioned left width-adjusting plate and right width-adjusting plate, there is respectively provided an L-shaped pressing piece, and the pressing pieces are located below the label clamping assembly.

[0010] The above-mentioned left width-adjusting plate and right width-adjusting plate are respectively provided with inclined wire grooves, and on the left width-adjusting plate and right width-adjusting plate, there is respectively provided a label clamping connecting plate capable of horizontal linear movement above the inclined wire grooves; the upper end of the swing block is rotatably connected with the label clamping connecting plate, and the lower end of the swing block is fixedly connected with a linear camshaft located in the inclined wire groove; the swing block is fixedly connected with a label clamping vertical plate, and the label clamping assembly is mounted on the label clamping vertical plate.

[0011] The above-mentioned label clamping assembly includes a third air cylinder and a fourth air cylinder. The third air cylinder is fixedly mounted on the label clamping vertical plate through a third bracket, and a third telescopic rod of the third air cylinder is connected with a telescopic connecting block; the fourth air cylinder is mounted on the telescopic connecting block, and a fourth telescopic rod of the fourth air cylinder is connected with a label clamping movable clamp, and on one side of the label clamping movable clamp, there is provided a label clamping fixed clamp for cooperating with material clamping.

[0012] The above-mentioned mounting frame is mounted with a second air cylinder, and a second telescopic rod of the second air cylinder is connected with a driving shaft; the driving shaft is in sliding fit with a first linear bearing on the label clamping connecting plate.

[0013] Compared with the prior art, for the automatic label tearing device of the present utility model, aiming at thermal transfer films of different sizes, the distance between two label clamping assemblies is adjusted by rotating a bidirectional lead screw, so as to achieve the purpose of accurately clamping labels, and the application range is wider. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 is a three-dimensional structural schematic diagram of this embodiment.

[0015] Figure 2 is a three-dimensional structural schematic diagram inside the mounting frame.

[0016] Figure 3 is Figure 2 a three-dimensional structural schematic diagram from another angle of

[0017] Figure 4 is a three-dimensional structural schematic diagram of the label clamping assembly connected to the inside of the mounting frame.

[0018] Figure 5 is a three-dimensional structural schematic diagram of the label clamping assembly.

[0019] Figure 6 is a structural schematic diagram of the label tearing state of this embodiment. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0020] The embodiments of the present utility model will be further described in detail below in conjunction with the accompanying drawings.

[0021] Figures 1 to 6 The following shows the structural schematic diagram of the present utility model.

[0022] The reference numerals therein are: mounting frame 1, front mounting long plate 2, rear mounting long plate 3, left mounting short plate 4, extension plate 4a, right mounting short plate 5, lifting rod 6, cylinder mounting rod 7, first cylinder 8, first cylinder joint 9, first slider 10, first slide rail 11, lifting bottom plate 12, vertical plate 12a, horizontal plate 12b, first mounting plate 13, bidirectional lead screw 14, left width adjustment plate 16, right width adjustment plate 17, lead screw nut 18, stepping motor 19, synchronous pulley 20, synchronous belt 21, motor bracket 22, tightening ring 23, guide shaft 24, long wire groove 25, short wire groove 26, first linear bearing 27, second bearing 28, second cylinder 29, second bracket 30, swing block 31, drive shaft 32, drive shaft connection block 33, second slide rail 34, inclined wire groove 35, third bearing 36, third bushing 37, linear camshaft 38, rotating shaft 39, pressing piece 40, label clamping connecting plate 41, label clamping vertical plate 42, third cylinder 43, third joint 44, third bracket 45, telescopic connecting block 46, third slider 47, third slide rail 48, fourth cylinder 49, fourth cylinder joint 50, first connecting shaft 51, second connecting shaft 52, movable clamp connecting block 53, fixed clamp connecting block 54, fourth fixed seat 55, label clamping movable clamp 56, label clamping fixed clamp 57, label clamping bottom plate 58.

[0023] As Figure 1 shown, an automatic label tearing device for a heat transfer printing device of the present utility model includes a lifting assembly, a width adjustment assembly, a pushing assembly, and a label clamping assembly.

[0024] The lifting assembly includes a lifting bottom plate 12 connected to the frame, a mounting frame 1 capable of lifting movement, and a first cylinder 8. The mounting frame 1 is composed of a front mounting long plate 2, a rear mounting long plate 3, a left mounting short plate 4, and a right mounting short plate 5. A groove is provided on both the left mounting short plate 4 and the right mounting short plate 5. A lifting rod 6 is fixed in the groove. The height of the lifting rod 6 just conforms to the depth of the groove. Both ends of the lifting rod 6 are inserted into the groove and fixed by screws. A first cylinder joint 9 is installed above the lifting rod 6.

[0025] The L-shaped lifting bottom plate 12 has a vertical plate 12a and a horizontal plate 12b arranged in an L shape. At both ends on one side of the vertical plate 12a, a first slide rail 11 is installed respectively. At both ends outside the left installation short plate 4 and the right installation short plate 5, a first slider 10 is installed respectively, so that the first slider 10 moves vertically along the first slide rail 11. Above the mounting bracket 1, two cylinder mounting rods 7 are provided. Two shallow grooves are provided on both horizontal plates 12b, so that both ends of the cylinder mounting rod 7 just fit into the shallow grooves on the horizontal plate 12b and are fixedly installed on the horizontal plate 12b by screws. Above the cylinder mounting rod 7, a first cylinder 8 is provided. The first cylinder 8 is fixedly installed on the cylinder mounting rod 7 through a first mounting plate 13. The first telescopic rod of the first cylinder 8 abuts against the first cylinder joint 9 below.

[0026] The lifting process is as follows: The first cylinder 8 drives the first telescopic rod to extend. The first telescopic rod pushes the first cylinder joint 9. The first cylinder joint 9 drives the lifting rod 6 on the mounting bracket 1. The lifting rod 6 drives the mounting bracket 1 to move downward. The first cylinder 8 drives the first telescopic rod of the first cylinder 8 to retract. The first cylinder joint 9 moves upward and the mounting bracket 1 moves upward.

[0027] As Figure 2 and 3 As shown, the width adjustment assembly includes a bidirectional lead screw 14 rotatably installed inside the mounting bracket 1. One end of the bidirectional lead screw 14 is connected to the left width adjustment plate 16, the lead screw nut 18, the left installation short plate 4 and the synchronous pulley 20. Outside the mounting bracket 1, a stepper motor 19 is provided. Below the left installation short plate 4, there is a downward extension plate 4a. The stepper motor 19 is horizontally installed on the extension plate 4a through a motor bracket 22. The synchronous pulley 20 is installed outside the left installation short plate 4 and is connected to the stepper motor 19 through a synchronous belt 21. The stepper motor 19 drives the bidirectional lead screw 14 to rotate. The bidirectional lead screw 14 cooperates with the lead screw nut 18 on the left width adjustment plate 16 to drive the left width adjustment plate 16 to move horizontally. The other end of the bidirectional lead screw 14 is connected to the right width adjustment plate 17, the lead screw nut 18, the right installation short plate 5 and the retaining ring 23. The retaining ring 23 is installed outside the right installation short plate 5. The thread directions at both ends of the bidirectional lead screw 14 are opposite. When the bidirectional lead screw 14 rotates, it pushes the left width adjustment plate 16 and the right width adjustment plate 17 to approach or move away from each other. On both sides of the bidirectional lead screw 14, two guide shafts 24 are symmetrically installed. The guide shafts 24 are installed between the left installation short plate 4 and the right installation short plate 5. The left width adjustment plate 16 and the right width adjustment plate 17 are slidably matched with the guide shafts 24 through linear bearings.

[0028] The width adjustment process is as follows: The stepper motor 19 drives the synchronous pulley 20 to rotate. The synchronous pulley 20 drives the bidirectional lead screw 14 to rotate. The bidirectional lead screw 14 cooperates with the lead screw nut 18 to drive the left width adjustment plate 16 and the right width adjustment plate 17 to move horizontally towards each other along the guide shafts 24. The left width adjustment plate 16 and the right width adjustment plate 17 drive the two label clamping assemblies to move horizontally towards each other to adjust the relative distance between the two label clamping assemblies.

[0029] The propulsion assembly includes a label clamping connecting plate 41, a swing block 31, a second cylinder 29, and a drive shaft 32 mounted on the left width adjustment plate 16 or the right width adjustment plate 17. As Figure 4 shown, a second slide rail 34 is provided on the left width adjustment plate 16, and two second sliders are fixed behind the label clamping connecting plate 41. The second sliders are slidably mounted on the second slide rail 34.

[0030] The label clamping connecting plate 41 is equipped with a first linear bearing 27 and a second bearing 28. The drive shaft 32 is inserted into the first linear bearing 27. The left width adjustment plate 16 is provided with a long slot 25, and the end of the drive shaft 32 can pass through the long slot 25, which is convenient for the width adjustment assembly to adjust the distance between the left width adjustment plate 16 and the right width adjustment plate 17, as well as the distance between the two label clamping connecting plates 41. The second cylinder 29 is fixedly connected to the rear mounting long plate 3 through a second bracket 30. The second telescopic rod of the second cylinder 29 is connected to the drive shaft 32 through a drive shaft connecting block 33, and can drive the label clamping connecting plate 41 to slide horizontally along the second slide rail 34.

[0031] The upper end of the swing block 31 is rotatably connected to the label clamping connecting plate 41 through a rotating shaft 39 and a second bearing 28. The inclined slot 35 is located below the slide rail. A linear camshaft 38 is installed at the lower end of the swing block 31. The swing block 31 can drive the linear camshaft 38 to rotate during the rotation process. A third bushing 37 is installed outside the linear camshaft 38, and the third bushing 37 is fixedly connected to the label clamping vertical plate 42. The linear camshaft 38 drives the label clamping vertical plate 42 to rotate.

[0032] The end of the linear camshaft 38 has a round shaft section, and a third bearing 36 is installed on the round shaft section. The third bearing 36 moves along the inclined slot 35. When the label clamping connecting plate 41 slides horizontally along the second slide rail 34, it can drive the upper end of the swing block 31 to move horizontally, and at the same time make the swing block 31 rotate relative to the label clamping connecting plate 41. As Figure 6 shown, when the swing block 31 rotates counterclockwise as a whole, the linear camshaft 38 drives the label clamping vertical plate 42 on the third bushing 37 to rotate counterclockwise, lifting the label clamping assembly, and the label clamping assembly moves obliquely upward, and can perform the label tearing action.

[0033] As Figure 5As shown in the figure, the automatic label tearing device of the present utility model includes two label clamping components. Since the structures of the two label clamping components are the same and they are mirror-mounted below the left width-adjusting plate 16 and the right width-adjusting plate 17, only one label clamping component will be described in this device, and the other is mirror-mounted. The label clamping component is provided with a third cylinder 43 and a fourth cylinder 49. The third cylinder 43 is fixedly installed on the label clamping vertical plate 42 through a third bracket 45. The third joint 44 is connected to the third cylinder 43 through a third telescopic rod, and the other end of the third joint 44 is connected to a telescopic connection block 46. A horizontally placed third slide rail 48 is arranged on the mating surface between the label clamping vertical plate 42 and the telescopic connection block 46. Two third sliders 47 that cooperate with the third slide rail 48 are arranged on the telescopic connection block 46, so that the telescopic connection block 46 moves horizontally along the third slide rail 48. The tail of the fourth cylinder 49 is installed on the label clamping bottom plate 58 through a fourth fixing seat 55. The head of the fourth cylinder 49 is connected to a fourth cylinder joint 50 through a fourth telescopic rod. The fourth cylinder joint 50 is connected to an L-shaped movable clamp connection block 53 through a first connecting shaft 51. The other end of the movable clamp connection block 53 is connected to a fixed clamp connection block 54 through a second connecting shaft 52. The bottom surface of the movable clamp connection block 53 is fixedly connected to the label clamping movable clamp 56, and the fixed connection block is connected to the label clamping fixed clamp 57. The label clamping movable clamp 56 is on the top, and the label clamping fixed clamp 57 is on the bottom, and the two form a clamping jaw.

[0034] The label clamping process is as follows: When the fourth cylinder 49 works, it drives the fourth telescopic rod to contract, pulls the fourth cylinder joint 50 backward, drives the movable clamp connection block 53 to rotate clockwise around the second connecting shaft 52, thereby pulling the label clamping movable clamp 56 upward. The label clamping fixed clamp 57 abuts against the lower edge of the label, and the clamping jaw opens. When the third cylinder 43 works, it drives the third joint 44 to move horizontally. The third joint 44 pushes the telescopic connection block 46 to move horizontally along the direction of the third slide rail 48, and the clamping jaw keeps the open state and moves forward for a certain distance. When the fourth cylinder 49 works, it drives the fourth telescopic rod to open, pushes the fourth cylinder joint 50 forward, and pushes the movable clamp to rotate counterclockwise, thereby pushing the label clamping movable clamp 56 and the label clamping fixed clamp 57 to clamp tightly, and the clamping jaw clamps the label.

[0035] An L-shaped pressing piece 40 is arranged below the label clamping component. The vertical plate of the pressing piece 40 is fixedly connected to the bottom of the left width-adjusting plate 16 or the right width-adjusting plate 17. The first cylinder 8 drives the lifting rod 6 to move downward, the lifting rod 6 drives the mounting frame 1 to move downward, the mounting frame 1 drives the left width-adjusting plate 16 and the right width-adjusting plate 17 to move downward, and the pressing piece 40 presses the fabric to assist the label clamping component to pick up the label. The second cylinder 29 drives the drive shaft 32 to move, and the drive shaft 32 drives the label clamping connecting plate 41 to move horizontally, and still keeps pressing the fabric during the process of lifting the label clamping component, assisting to complete the label tearing task.

[0036] The label tearing process is as follows: The first cylinder 8 pushes the mounting bracket 1 downward, and the pressing piece 40 presses the fabric downward. The stepping motor 19 drives the bidirectional lead screw 14 to rotate. The bidirectional lead screw 14 cooperates with the lead screw nut 18 to drive the left width-adjusting plate 16 and the right width-adjusting plate 17 to move towards each other, that is, to adjust the distance between the two label clamping components. The fourth cylinder 49 contracts, pulling the movable label clamp 56 to open. The label clamping fixed frame abuts against the lower edge of the label, and at this time, the clamping jaws are open. The third cylinder 43 pushes the label clamping component to move forward a certain distance along the third slideway while keeping the clamping jaws open. At this time, the label clamping fixed frame picks up the lower edge of the label. The fourth cylinder 49 pushes the movable label clamp 56 to close, and at this time, the clamping jaws clamp one side of the label. The second cylinder 29 pushes the drive shaft 32 to move horizontally, driving the label clamping connecting plate 41 to move horizontally, driving the swing block 31 to rotate counterclockwise, thereby driving the label clamping vertical plate 42 to rotate counterclockwise, and the label clamping component moves obliquely upward to separate the label from the fabric, completing the label tearing task.

[0037] The best embodiments of the present utility model have been illustrated, and various changes or modifications made by those of ordinary skill in the art will not depart from the scope of the present utility model.

Claims

1. An automatic label tearing device for a thermal transfer device, comprising a mounting frame (1), and a left width adjusting plate (16) and a right width adjusting plate (17) are arranged in the mounting frame (1), and it is characterized in that: The described mounting bracket (1) is installed with a guide shaft (24), and the left width-adjusting plate (16) and the right width-adjusting plate (17) are slidably installed on the guide shaft (24); the mounting bracket (1) is rotatably installed with a bidirectional lead screw (14), and the left width-adjusting plate (16) and the right width-adjusting plate (17) are respectively provided with lead screw nuts (18) that cooperate with the bidirectional lead screw (14); the mounting bracket (1) is provided with a stepping motor (19) for driving the bidirectional lead screw (14) to rotate; the left width-adjusting plate (16) and the right width-adjusting plate (17) are respectively provided with label clamping assemblies for clamping the heat transfer film.

2. The automatic label tearing device according to claim 1, characterized in that: The mounting bracket (1) is slidably installed on the lifting bottom plate (12), and the lifting bottom plate (12) is connected with a first cylinder (8) for driving the mounting bracket (1) to move up and down.

3. The automatic label tearing device according to claim 2, wherein: A bottom of the left width-adjusting plate (16) and a bottom of the right width-adjusting plate (17) are respectively provided with an L-shaped pressing piece (40), and the pressing piece (40) is located below the label clamping assembly.

4. The automatic label tearing device according to claim 3, characterized in that: The left width-adjusting plate (16) and the right width-adjusting plate (17) are respectively provided with inclined wire grooves (35), and the left width-adjusting plate (16) and the right width-adjusting plate (17) are respectively provided with label clamping connecting plates (41) that can move horizontally in a straight line above the inclined wire grooves (35); an upper end of a swing block (31) is rotatably connected to the label clamping connecting plate (41), and a lower end of the swing block (31) is fixedly connected to a linear camshaft (38) located in the inclined wire groove (35); the swing block (31) is fixedly connected with a label clamping vertical plate (42), and the label clamping assembly is installed on the label clamping vertical plate (42).

5. The automatic label tearing device according to claim 4, wherein: The label clamping assembly includes a third cylinder (43) and a fourth cylinder (49), the third cylinder (43) is fixedly installed on the label clamping vertical plate (42) through a third bracket (45), and a third telescopic rod of the third cylinder (43) is connected to a telescopic connecting block (46); the telescopic connecting block (46) is installed with the fourth cylinder (49), and a fourth telescopic rod of the fourth cylinder (49) is connected to a label clamping movable clamp (56), and a label clamping fixed clamp (57) for cooperating with clamping materials is arranged on one side of the label clamping movable clamp (56).

6. The automatic label tearing device according to claim 5, wherein: The mounting bracket (1) is installed with a second cylinder (29), and a second telescopic rod of the second cylinder (29) is connected to a driving shaft (32); the driving shaft (32) is slidably matched with a first linear bearing (27) on the label clamping connecting plate (41).

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