Positioning device for multi-process alignment transfer of curved surface cultural and creative carrier

Abstract

The utility model belongs to the technical field of heat transfer printing discloses a kind of positioning device for multi-process alignment transfer printing of curved surface text and creative carrier, including processing table, vertically movable support column and top backing plate, multiple electric push rods and its connected clamping assembly that are circumferentially distributed, and button switch located at backing plate bottom. Carrier dead weight will drive support column together with backing plate to move downward, and then touch pressure button switch, immediately automatically start all electric push rod synchronous action, drive clamping assembly directly to center movement and clamping carrier. This design can be adapted to the curved surface text and creative carrier of different height, without disassembling any component, clamping action is driven by electric push rod linearly, not restricted by support column lifting amplitude, and height positioning and clamping start automatic linkage are realized by button switch. Using the device greatly improves height adjustment and overall processing efficiency, and effectively guarantees the stability and precision of transfer printing process.

Description

Technical Field

[0001] This utility model belongs to the field of heat transfer technology, specifically relating to a positioning device for multi-process alignment transfer of curved cultural and creative carriers. Background Technology

[0002] Transfer printing devices, as equipment capable of transferring objects or images from a source surface to a target surface, play a vital role in fields such as cultural and creative product processing. Through a combination of techniques including high-voltage electrostatics and hot pressing, they can achieve transfer printing on both flat and curved surfaces of cultural and creative carriers, meeting the personalized production needs of different forms of cultural and creative products. This provides strong technical support for the diversified development of the cultural and creative industry, and related technologies have therefore received widespread attention and research within the industry.

[0003] Currently, existing technologies, such as the "Multi-process Alignment Transfer Device for Curved Cultural and Creative Carriers" (Chinese Patent Publication No. CN218701979U), propose a transfer scheme including a processing table, hydraulic cylinder, hot press box, printing plate, and connecting arm. This scheme achieves the transfer operation of curved cultural and creative carriers to a certain extent. However, this device has obvious defects in practical applications: on the one hand, when it is necessary to change the height of the object to be processed, the connecting arm must be disassembled first, the height of the slide rod adjusted by the hydraulic cylinder, and then the connecting arm reassembled. This repeated disassembly and reassembly operation seriously affects the processing efficiency; on the other hand, its clamping part has a complex structural design, and the clamping action can only be completed by raising and lowering the connecting arm. Moreover, since the lowering range of the connecting arm is directly proportional to the extension length of the low rod and the pressure roller, when the lowering range of the connecting arm is small, if the initial distance between the pressure roller and the object is far, the pressure roller cannot effectively clamp and fix the object, thus affecting the stability and accuracy of the transfer processing.

[0004] It is evident that existing curved surface cultural and creative carrier transfer devices suffer from cumbersome height adjustment operations, which seriously affects the processing efficiency of cultural and creative products. Utility Model Content

[0005] This utility model provides a positioning device for multi-process alignment and transfer printing of curved cultural and creative carriers. The use of this positioning device can effectively solve the problem of cumbersome height adjustment operation in existing curved cultural and creative carrier transfer devices, and ensure the processing efficiency of cultural and creative products.

[0006] To achieve the above objectives, the present invention adopts the following technical content: A positioning device for multi-process alignment and transfer printing on curved cultural and creative carriers, including a processing table; A vertically movable support column is inserted at the center of the processing table; The top of the support column is provided with a pad for placing curved cultural and creative carriers; Multiple electric push rods are arranged circumferentially along the processing table; The end of the electric push rod is connected to a clamping component for clamping curved cultural and creative carriers; A push-button switch is provided on the processing table, and the push-button switch is located at the bottom of the pad. The push-button switch is connected to the electric push rod.

[0007] Furthermore, an extension plate is provided at the bottom end of the support column; A return spring is fitted on the support column. One end of the return spring is connected to the bottom surface of the processing table, and the other end is connected to the extension plate.

[0008] Furthermore, the plurality of electric push rods are evenly distributed along the circumference of the processing table.

[0009] Furthermore, the electric push rod is connected to the processing table via a hydraulic cylinder.

[0010] Furthermore, the clamping assembly includes a connecting plate, a rotating arm, and a pressure roller connected in sequence; The connecting plate is connected to the output end of the electric push rod.

[0011] Furthermore, a flexible arc-shaped pressure sensor is embedded within the pressure roller; The flexible arc-shaped pressure sensor is connected to the electric push rod.

[0012] Furthermore, it also includes: switching circuits; The opening and closing circuit includes a PLC controller, which is connected to a push-button switch, an electric actuator, and a flexible arc-shaped pressure sensor.

[0013] Furthermore, limit blocks are provided on the processing table; The limiting block is located at the bottom of the pad to limit the descent height of the pad.

[0014] Furthermore, a transfer device is provided above the pad.

[0015] Furthermore, the transfer equipment includes a thermostatic box fixed above the processing table; A hydraulic cylinder is installed on the top of the autoclave; The output end of the hydraulic cylinder passes through the hot press box, and a printing plate is fixed on the output end.

[0016] Compared with the prior art, the present invention has the following beneficial effects: This invention provides a positioning device for multi-process alignment and transfer printing on curved cultural and creative carriers. It includes a processing table, a vertically movable support column and a top pad, multiple circumferentially distributed electric push rods and their connected clamping components, and a button switch located at the bottom of the pad. The carrier's own weight causes the support column and pad to move downwards, thus activating the button switch. This automatically activates all the electric push rods, driving the clamping components directly towards the center to clamp the carrier. This design is adaptable to curved cultural and creative carriers of different heights, requires no disassembly of any parts, and the clamping action is linearly driven by the electric push rods, unaffected by the lifting range of the support column. Furthermore, the button switch enables automatic linkage between height positioning and clamping activation. Using this device significantly improves height adjustment and overall processing efficiency, while effectively ensuring the stability and accuracy of the transfer process.

[0017] Preferably, in this invention, the extension plate and the return spring combine to form an automatic reset mechanism for the support column. Utilizing the energy storage characteristics of the spring, the support column is automatically raised to its initial position after the carrier processing is completed, eliminating manual reset operations, further shortening process intervals, and improving the efficiency of continuous equipment operation.

[0018] Preferably, in this invention, the electric push rods are evenly distributed circumferentially, resulting in a centrally symmetrical distribution of clamping force. This utilizes the principle of mechanical balance to prevent displacement or overturning caused by unilateral pressure on the carrier, ensuring uniform force distribution on the curved carrier and improving positional stability and finished product consistency during the transfer process.

[0019] Preferably, in this invention, the hydraulic cylinder serves as the mounting base for the electric push rod, providing rigid support. This enhances the structural stability of the push rod during operation, effectively suppresses vibration transmission, and prevents mechanical shaking during clamping from affecting the transfer alignment accuracy.

[0020] Preferably, in this invention, the connecting plate, the rotating arm, and the pressure roller form a lever-type clamping structure. The rotating arm converts the linear thrust of the electric push rod into the vertical downward pressure of the pressure roller on the carrier, significantly amplifying the effective clamping force; the line contact mode of the pressure roller adapts to the curved surface contour, reducing the risk of local stress damage.

[0021] Preferably, in this invention, a flexible arc-shaped pressure sensor is embedded in the pressure roller to monitor the contact pressure in real time. The sensor feedback closed-loop control stops the electric push rod, achieving dynamic and precise adjustment of the clamping force and preventing insufficient pressure from causing displacement or overload damage to the carrier.

[0022] Preferably, in this invention, the PLC controller integrates an on / off circuit to achieve automatic control.

[0023] Preferably, in this invention, the flexible arc-shaped pressure sensor detects the pressure between the pressure roller and the carrier in real time and converts the pressure signal into an electrical signal, which is then transmitted to the PLC controller via a wire. The PLC controller analyzes the received electrical signal according to preset logic instructions. If the pressure value exceeds a preset threshold, the PLC controller immediately issues an instruction to cut off the power supply circuit of the electric push rod, causing the electric push rod to stop moving and disconnect the power, thus preventing excessive pressure during fixing from damaging the carrier.

[0024] Preferably, in this invention, the limiting block sets a mechanical hard stop for the descent of the pad. This physically prevents excessive downward movement, protecting the push-button switch from overtravel damage and ensuring that the lifting stroke of the support column is always within a safe threshold, thus improving equipment durability.

[0025] Preferably, in this invention, the hot press box and the printing plate constitute an integrated transfer execution module. The hydraulic cylinder drives the printing plate to press down vertically, forming a stable pressure transmission path with the lower positioning device, eliminating the force transmission loss and deviation of the traditional connecting arm structure, and ensuring the accuracy of the transfer pattern alignment and the quality of the hot press. Attached Figure Description

[0026] Figure 1 A schematic diagram of the structure of a positioning device for multi-process alignment and transfer printing on a curved cultural and creative carrier provided in this embodiment of the utility model; Figure 2 A working state diagram of a positioning device for multi-process alignment and transfer printing on a curved cultural and creative carrier provided for an embodiment of this utility model; Figure 3 A schematic diagram of the clamping component structure of a positioning device for multi-process alignment and transfer printing of curved cultural and creative carriers provided in this embodiment of the present utility model.

[0027] Figure label: 1. Processing table; 2. Hydraulic cylinder; 3. Electric push rod; 4. Connecting plate; 5. Rotating arm; 6. Pressure roller; 7. Flexible arc-shaped pressure sensor; 8. Support column; 9. Extension plate; 10. Return spring; 11. Pad plate; 12. Push button switch; 13. Limit block; 14. Hot press box; 15. Hydraulic cylinder; 16. Printing plate. Detailed Implementation

[0028] To make the technical problem solved by this utility model, the technical solution, and the beneficial effects clearer, the following specific embodiments provide a further detailed description of this utility model. It should be understood that the specific embodiments described herein are merely illustrative of this utility model and are not intended to limit it.

[0029] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. The components of the embodiments of this utility model described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0030] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0031] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0032] In the description of the embodiments of this utility model, it should be noted that if terms such as "upper," "lower," "horizontal," or "inner" are used to indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship in which the utility model product is usually placed during use, they are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0033] Furthermore, the use of the term "horizontal" does not imply that the component must be absolutely horizontal, but rather that it can be slightly tilted. For example, "horizontal" simply means that its direction is more horizontal than "vertical," and does not mean that the structure must be completely horizontal, but can be slightly tilted.

[0034] In the description of the embodiments of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0035] like Figure 1As shown, this embodiment provides a positioning device for multi-process alignment and transfer printing on curved cultural and creative carriers, including: a processing table 1, with hydraulic cylinders 2 arranged in a circular array on the top of the processing table 1, and an electric push rod 3 fixed to the top of the hydraulic cylinders 2, the height of which is adjusted by the hydraulic cylinders 2; as shown Figure 3 As shown, the output end of the electric push rod 3 is fixed with a clamping assembly, which includes a connecting plate 4. The connecting plate 4 is rotatably connected to a rotating arm 5, and the rotating arm 5 is rotatably connected to a pressure roller 6. The top of the processing table 1 is provided with a starting structure, which is used to start the electric push rod 3 to fix the cultural and creative carrier. The curved cultural and creative carrier is placed on the pad 11 at the center of the top of the processing table 1. The carrier's own weight causes the pad 11 to drive the support column 8 to slide downward. The extension plate 9 moves down synchronously and stretches the reset spring 10. When the pad 11 descends to the contact button switch 12, the button switch 12 connected in series in the power supply circuit of the electric push rod 3 is triggered and closed. Then the electric push rod 3 starts, and its output end pushes the connecting plate 4 to move. Then the pressure roller 6 moves closer to the carrier and gradually presses the carrier, thus achieving the initial fixation of the curved cultural and creative carrier.

[0036] In this embodiment, the starting structure includes a support column 8, which is slidably disposed at the center of the processing table 1. An extension plate 9 is disposed on the outside of the bottom end of the support column 8, and a return spring 10 is disposed on the outside of the support column 8. The top of the return spring 10 is fixedly connected to the bottom of the processing table 1, and the bottom of the return spring 10 is fixedly connected to the extension plate 9. A pad 11 is fixedly fixed on the top of the support column 8. The starting structure also includes a push button switch 12 installed on the top of the processing table 1. The push button switch 12 is located at the bottom of the pad 11. A limit block 13 is fixed on the top of the processing table 1. The limit block 13 is used to limit the descent height of the pad 11 to protect the push button switch 12. When the pad 11 descends to contact the push button switch 12, the push button switch 12 connected in series in the power supply circuit of the electric push rod 3 is triggered to close.

[0037] As another preferred embodiment, the pressure roller 6 is embedded with a flexible arc-shaped pressure sensor 7. The embedded flexible arc-shaped pressure sensor 7 detects the pressure between the pressure roller 6 and the carrier in real time and converts the pressure signal into an electrical signal, which is transmitted to the PLC controller through a wire. The PLC controller analyzes the received electrical signal according to a preset program. If the pressure value exceeds a preset threshold, the PLC controller immediately issues a command to cut off the power supply circuit of the electric push rod 3, so that the electric push rod 3 stops moving and is de-energized, preventing the carrier from being damaged by excessive pressure during fixing. This enables automatic start and stop.

[0038] Of course, it should be noted that when the electric push rod 3 is started, the operator can directly judge the clamping pressure of the cultural and creative carrier based on the operator's experience and stop the electric push rod 3 by using the stop switch.

[0039] like Figure 2As shown, a hot press box 14 is installed on the top of the processing table 1 via a support column. A hydraulic cylinder 15 is installed on the top of the hot press box 14. The output end of the hydraulic cylinder 15 passes through the hot press box 14 and is fixed with a printing plate 16. A thickened metal layer is provided on the outer surface of the hot press box 14 to improve the strength of the hydraulic cylinder 15. When the hydraulic cylinder 15 is started, the output end pushes the printing plate 16 down, and the alignment and transfer process of the curved cultural and creative carrier is completed in the hot press box 14.

[0040] It should be noted that the push button switch 12, as a control signal triggering element, is connected in series in the power supply circuit of the electric push rod 3, and is used to control the opening and closing of the electric push rod 3.

[0041] In addition, the control circuits of the flexible arc-shaped pressure sensor 7 and the electric push rod 3 are connected to the PLC controller through wires. The flexible arc-shaped pressure sensor 7 converts the detected pressure signal into an electrical signal in real time and transmits it to the PLC controller. The PLC judges whether the pressure exceeds the limit through a preset program. When the pressure value corresponding to the electrical signal exceeds the preset threshold, the PLC controller immediately issues a command to cut off the power supply circuit of the electric push rod 3, so that the electric push rod 3 stops moving and is de-energized, thereby avoiding damage to the cultural and creative carrier due to excessive pressure.

[0042] It should be noted that, in this embodiment, the flexible arc-shaped pressure sensor 7 is preferably the Tekscan FlexiForceA201; the PLC controller is preferably the Delta DVP20SX2 (DVP-SX2 series).

[0043] Working principle: First, the curved cultural and creative carrier is placed on the pad 11 at the center of the top of the processing table 1. The carrier's own weight causes the pad 11 to slide downwards along with the support column 8. The extension plate 9 moves down simultaneously and stretches the return spring 10. When the pad 11 descends to the point of contacting the button switch 12, the button switch 12 connected in series in the power supply circuit of the electric push rod 3 is triggered and closed. Then the electric push rod 3 starts, and its output end pushes the connecting plate 4 to move. Then the pressure roller 6 moves closer to the carrier and gradually presses the carrier, thus achieving the initial fixation of the curved cultural and creative carrier. The entire process realizes the automatic start of the electric push rod 3.

[0044] Meanwhile, the limit block 13 can limit the excessive descent of the pad 11, preventing the button switch 12 from being damaged by overpressure. During the process of the pressure roller 6 pressing the carrier, the embedded flexible arc-shaped pressure sensor 7 detects the pressure between the pressure roller 6 and the carrier in real time, and converts the pressure signal into an electrical signal, which is transmitted to the PLC controller through the wire. The PLC controller analyzes the received electrical signal according to the preset program. If the pressure value exceeds the preset threshold, the PLC controller immediately issues a command to cut off the power supply circuit of the electric push rod 3, so that the electric push rod 3 stops moving and is de-energized, preventing the carrier from being damaged by excessive pressure during fixing.

[0045] After the fixing is completed, the hydraulic cylinder 15 at the top of the hot press box 14 is activated, and its output end pushes the printing plate 16 down to complete the alignment and transfer process of the curved cultural and creative carrier in the hot press box 14. After the transfer is completed, the carrier is removed, the reset spring 10 is reset and drives the extension plate 9, support column 8 and pad 11 to move up. Then the button switch 12 is turned off, the electric push rod 3 is de-energized and reset, and the pressure roller 6 is removed from the carrier to wait for the next processing.

[0046] In summary, this utility model provides a positioning device for multi-process alignment and transfer printing on curved cultural and creative carriers, which has the following advantages compared with existing positioning methods: First, it can adapt to curved cultural and creative carriers of different heights without disassembling or assembling any parts. Specifically, the hydraulic cylinder can directly adjust the overall height of the electric push rod, and the electric push rod can independently push the pressure roller closer to or away from the carrier, eliminating repeated disassembly and assembly steps, greatly simplifying the operation process and improving the efficiency of transfer printing.

[0047] Secondly, the pressure rollers distributed in a circular array clamp synchronously from multiple directions, ensuring stable fixation of the curved cultural and creative carrier and avoiding clamping failure.

[0048] Third, it has a precise pressure protection function to effectively protect the integrity of cultural and creative carriers. The flexible arc-shaped pressure sensor embedded in the pressure roller detects the clamping pressure in real time. With the threshold judgment of the PLC controller, when the pressure exceeds the preset value, the power supply of the electric push rod is cut off immediately to prevent the carrier from deforming or being damaged due to excessive pressure. It is especially suitable for cultural and creative carriers with brittle and easily damaged materials.

[0049] Fourth, it has a wider range of compatibility, and can simultaneously meet the transfer needs of curved and flat cultural and creative carriers. The pressure roller adapts to the curved surface contour through the rotating arm, and the cooperation structure between the hot press box and the printing plate is compatible with the transfer operation of flat carriers. Without the need to change the clamping or transfer parts, it can be adapted to cultural and creative carriers of various shapes and materials, improving the versatility of the device and the coverage of usage scenarios.

[0050] The above embodiments are merely one of the implementation methods to achieve the technical solution of this utility model. The scope of protection claimed by this utility model is not limited to this embodiment, but also includes any variations, substitutions and other implementation methods that can be easily conceived by those skilled in the art within the scope of the technology disclosed in this utility model.

Claims

1. A positioning device for multi-process alignment and transfer printing on curved cultural and creative carriers, characterized in that, Including the processing table (1); The center of the processing table (1) is provided with a support column (8) that can move vertically. The top of the support column (8) is provided with a pad (11) for placing curved cultural and creative carriers. Multiple electric push rods (3) are arranged circumferentially on the processing table (1); The end of the electric push rod (3) is connected to a clamping component for clamping curved cultural and creative carriers; A push-button switch (12) is provided on the processing table (1), and the push-button switch (12) is located at the bottom of the pad (11); The push button switch (12) is connected to the electric push rod (3).

2. The positioning device for multi-process alignment and transfer printing on curved cultural and creative carriers according to claim 1, characterized in that, An extension plate (9) is provided at the bottom end of the support column (8). A reset spring (10) is fitted on the support column (8). One end of the reset spring (10) is connected to the bottom surface of the processing table (1), and the other end is connected to the extension plate (9).

3. The positioning device for multi-process alignment and transfer printing on curved cultural and creative carriers according to claim 1, characterized in that, Multiple electric push rods (3) are evenly arranged along the circumference of the processing table (1).

4. The positioning device for multi-process alignment and transfer printing on curved cultural and creative carriers according to claim 1, characterized in that, The electric push rod (3) is connected to the processing table (1) via the hydraulic cylinder (2).

5. The positioning device for multi-process alignment and transfer printing on curved cultural and creative carriers according to claim 1, characterized in that, The clamping assembly includes a connecting plate (4), a rotating arm (5), and a pressure roller (6) connected in sequence. The connecting plate (4) is connected to the output end of the electric push rod (3).

6. The positioning device for multi-process alignment and transfer printing on curved cultural and creative carriers according to claim 5, characterized in that, A flexible arc-shaped pressure sensor (7) is embedded in the pressure roller (6). The flexible arc-shaped pressure sensor (7) is connected to the electric push rod (3).

7. A positioning device for multi-process alignment and transfer printing on curved cultural and creative carriers according to claim 6, characterized in that, Also includes: On / off circuit; The opening and closing circuit includes a PLC controller, which is connected to a push button switch (12), an electric push rod (3), and a flexible arc-shaped pressure sensor (7).

8. The positioning device for multi-process alignment and transfer printing of curved cultural and creative carriers according to claim 1, characterized in that, Limiting blocks (13) are provided on the processing table (1); The limiting block (13) is located at the bottom of the pad (11) to limit the descent height of the pad (11).

9. A positioning device for multi-process alignment and transfer printing on curved cultural and creative carriers according to claim 1, characterized in that, A transfer device is provided above the pad (11).

10. A positioning device for multi-process alignment and transfer printing on curved cultural and creative carriers according to claim 9, characterized in that, The transfer equipment includes a hot press (14) fixed above the processing table (1). A hydraulic cylinder (15) is installed on the top of the hot press box (14); The output end of the hydraulic cylinder (15) passes through the hot press box (14) and a printing plate (16) is fixed on the output end.

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