Double-station heat transfer printing machine

Abstract

The invention discloses a double-station heat transfer printing machine which comprises a base. The driving box body is arranged on the base; the pressing plate control unit is movably arranged on the driving box body and comprises a supporting arm and a control terminal; the upper pressing plate is connected to the pressing plate control unit and is driven by the pressing plate control unit to move between a lifting position and a pressing position; the two lower pressing plate brackets are arranged on the base; the two lower pressing plates are the same in structure and are respectively arranged on the corresponding lower pressing plate brackets; and two safety grating devices disposed at different corners of the base and configured to generate an echelette grating therebetween.

Description

Technical Field

[0001] The present application relates to a transfer device, and in particular to a double-station thermal transfer machine. Background Art

[0002] Thermal transfers include various logos with ink, material layers and adhesives. When the thermal transfer and garment are pressed into contact between platens and heated, the logos are bonded to the material layer, such as a shirt, jacket or other garment. New developments in the structure and composition of letters have resulted in high-quality transfers that can be accurately and quickly transferred to garments without run-outs or partial transfer adhesion interruptions, as long as the printer can operate at a predetermined temperature, for a predetermined time, and at a predetermined pressure while providing a smooth adhesion surface on the garment.

[0003] Compared with the traditional single-station heat transfer machine, the double-station heat transfer machine can prepare the printing material at another station while performing the printing task at one station, so it can greatly improve production efficiency. However, since the double-station heat transfer machine is usually larger in size, the operator can easily touch the platen part of the double-station heat transfer machine during operation, which will cause safety hazards.

[0004] Therefore, it is desirable to develop a double-station heat transfer machine so that an operator can start and stop the double-station heat transfer machine at a position relatively far from the platen portion. It is also desirable to develop a double-station heat transfer machine so that during the operation of the double-station heat transfer machine, an object or operator entering the safety area of ​​the double-station heat transfer machine can trigger the shutdown protection of the double-station heat transfer machine. Summary of the invention

[0005] In order to solve the above-mentioned technical problems of the existing double-station thermal transfer machine, the present application proposes a double-station thermal transfer machine, which is equipped with a control pedal for remotely operating the start and stop of the double-station thermal transfer machine, and a safety grating device for detecting whether there are objects or operators entering the safety area of ​​the double-station thermal transfer machine.

[0006] The present application discloses a double-station heat transfer machine, comprising: a base; a driving box, which is arranged on the base; a pressing plate control unit, which is movably arranged on the driving box and includes a support arm and a control terminal; an upper pressing plate, which is connected to the pressing plate control unit and is driven by the pressing plate control unit to move between a lifting position and a pressing position; two lower pressing plate brackets, which are arranged on the base; two lower pressing plates, which are respectively arranged on corresponding lower pressing plate brackets, one of the two lower pressing plates corresponds to the first position of the pressing plate control unit on the driving box, and the other of the two lower pressing plates corresponds to the second position of the pressing plate control unit on the driving box; characterized in that the double-station heat transfer machine also includes two safety grating devices, which are arranged at different corners of the base and are configured to generate infrared gratings therebetween; each safety grating device includes a transmitter and a receiver; a plurality of infrared transmitting tubes are arranged in the transmitter; a plurality of infrared receiving tubes of the same number and arrangement as the infrared transmitting tubes in the transmitter are arranged in the receiver; and each infrared transmitting tube in the transmitter of the safety grating device is aligned with the corresponding infrared receiving tube in the receiver of the other safety grating device.

[0007] According to an optional embodiment, the positions of the two safety grating devices are arranged so that the infrared grating covers one side of the double-station thermal transfer machine.

[0008] According to an optional embodiment, the support arm is connected to a slide rail in a drive housing so as to translate on the slide rail; the control terminal is arranged at the top of the support arm and includes a status display screen, an emergency stop button and a start button; the status display screen is configured to display the current and predetermined operating status of the double-station thermal transfer machine, and includes buttons or a touch screen for inputting operating parameters; the emergency stop button is arranged near the status display screen and has an anti-mistouch structure; the start button is arranged on the control terminal at a distance from the emergency stop button.

[0009] According to an optional embodiment, each lower pressure plate bracket includes two supporting side plates, a supporting top plate and a quick-release handle arranged on the supporting side plates; the two supporting side plates extend vertically upward from the base and have a recess extending in the horizontal direction; the supporting top plate is horizontally connected to the top of the two supporting side plates, and a quick-release positioning hole is arranged in the center.

[0010] According to an optional embodiment, the lower pressure plate includes a base plate, a silicone pad and a quick release seat; the silicone pad is arranged on the top of the base plate, and a positioning grid for positioning the thermal transfer material is drawn on its top surface; the quick release seat is arranged at the bottom of the base plate, and its size is set to correspond to the size of the quick release positioning hole, so as to be locked to the lower pressure plate bracket with the aid of a quick release handle.

[0011] According to an optional embodiment, the pressing plate control unit includes a hydraulic push rod or a pneumatic push rod for driving the upper pressing plate; the upper pressing plate includes a heating unit for heating the bottom surface of the upper pressing plate.

[0012] According to an optional embodiment, the double-station thermal transfer machine also includes: a control cabinet, which is arranged on one side of the base and is connected to the pressure plate control unit via a cable passing through the drive box; wherein the control cabinet includes a PLC controller for controlling the operation of the double-station thermal transfer machine.

[0013] According to an optional embodiment, the double-station thermal transfer machine further includes: a control pedal connected to the control cabinet via a cable and configured to output the same signal as the start button when pressed.

[0014] According to an optional embodiment, the double-station thermal transfer machine also includes: a laser positioning device, which is arranged on a base and includes a locator bracket and a laser locator; wherein the locator bracket includes two vertical frame parts extending vertically upward from two corners of the base and a horizontal frame part horizontally connected to the top ends of the two vertical frame parts; wherein the laser locator is arranged on the horizontal frame part of the locator bracket and includes one or more laser emitters configured to form a cross-shaped light spot on the irradiated surface; wherein the laser emitter is configured to face the lower pressure plate.

[0015] According to an optional embodiment, the laser positioning device includes a plurality of laser positioners arranged at intervals from each other.

[0016] The double-station heat transfer machine of the present application is equipped with a control pedal for remotely operating the start and stop of the double-station heat transfer machine, and a safety grating device for detecting whether an object or an operator enters a safety area of ​​the double-station heat transfer machine. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The above and other aspects of the present application will be more fully understood from the detailed description below in conjunction with the following drawings. It should be noted that the scales of the drawings may be different for the purpose of clear description, but this will not affect the understanding of the present application.

[0018] Figure 1 It is a front view of a double-station heat transfer machine according to the present application.

[0019] Figure 2 It is a side view of a double-station heat transfer machine according to the present application.

[0020] Figure 3 It is a top view of the double-station heat transfer machine according to the present application.

[0021] Figure 4 It is a partially exploded three-dimensional diagram of the base and the lower pressure plate bracket of the double-station heat transfer machine according to the present application.

[0022] Figure 5 It is an exploded stereoscopic view of the lower pressing plate of the double-station thermal transfer machine according to the present application. DETAILED DESCRIPTION

[0023] The exemplary embodiments of the present application will be described in more detail below with reference to the accompanying drawings. Although the exemplary embodiments of the present application are shown in the accompanying drawings, it should be understood that the present application can be implemented in various forms and should not be limited by the embodiments described herein. On the contrary, these embodiments are provided in order to enable a more thorough understanding of the present application and to fully convey the scope of the present application to those skilled in the art.

[0024] It should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it can be directly on the other element or indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or indirectly connected to the other element.

[0025] It should be understood that the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0026] It should be understood that the terms "first" and "second" are used for descriptive purposes only and should not be interpreted as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of this application, "multiple" and "several" mean two or more, unless otherwise clearly and specifically defined.

[0027] It should be noted that the terms "installed", "connected" and "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, and it can be the internal connection of two elements.

[0028] Figure 1 It is a front view of a double-station heat transfer machine according to the present application. Figure 2 It is a side view of a double-station heat transfer machine according to the present application. Figure 3 is a top view of a double-station heat transfer machine according to the present application. Figure 1-Figure 3As shown, the double-station thermal transfer machine 1 includes a base 10, a drive box 11, a pressure plate control unit 12, an upper pressure plate 13, a lower pressure plate bracket 14, a lower pressure plate 15, a laser positioning device 16, a control pedal 17, a safety grating device 18 and a control cabinet 19.

[0029] The driving box 11 is arranged on the base 10 and includes a slide rail (not shown). The platen control unit 12 is movably arranged on the driving box 11 and includes a support arm 120 and a control terminal 121. Specifically, the platen control unit 12 can move between a first position and a second position. The support arm 120 is connected to the slide rail of the driving box 11 to translate on the slide rail. The control terminal 121 is arranged at the top of the support arm 120 and includes a status display screen 1211, an emergency stop button 1210 and a start button 1212. The status display screen 1211 is used to display the current and predetermined operating state of the double-station heat transfer machine 1, including but not limited to the position of the platen control unit 12, the position of the upper platen 13, the number of times and the pressing time of the upper platen 13, etc., and includes a button or touch screen for inputting operating parameters. The emergency stop button 1210 is arranged near the status display screen 1211 and has an anti-mistouch structure, which is used to stop all operations of the double-station heat transfer machine 1 under certain circumstances. In addition, the emergency stop button 1210 is usually set to red or other eye-catching colors. The start button 1212 is set at a distance from the emergency stop button 1210 on the control terminal 121 and is set to a different color from the emergency stop button 1210.

[0030] The upper platen 13 is connected to the platen control unit 12 and is driven by the platen control unit 12 to move between the raised position and the pressed position. The upper platen 13 includes a heating unit disposed therein for heating the bottom surface of the upper platen 13 to complete the thermal transfer process. In order to drive the upper platen 13, the platen control unit 12 may include a hydraulic push rod or a pneumatic push rod.

[0031] The first position and the second position of the pressure plate control unit 12 are set so that when the pressure plate control unit 12 is in the first position, the upper pressure plate 13 is aligned with one of the two lower pressure plates 15, and when the pressure plate control unit 12 is in the second position, the upper pressure plate 13 is aligned with the other of the two lower pressure plates 15.

[0032] The lifting position and the pressing position of the upper pressing plate 13 are arranged so that when the upper pressing plate 13 is in the lifting position, there is a distance between it and the corresponding lower pressing plate 15, and when the upper pressing plate 13 is in the pressing position, it is pressed against the corresponding lower pressing plate 15.

[0033] The laser positioning device 16 is arranged on the base 10, and includes a locator bracket 160 and a laser locator 161. The locator bracket 160 includes two vertical frame parts extending vertically upward from the two corners of the base 10 and a horizontal frame part horizontally connected to the top of the two vertical frame parts. The laser locator 161 is arranged on the horizontal frame part of the locator bracket 160. Preferably, the laser positioning device 16 includes a plurality of laser locators 161. Each laser locator 161 is spaced apart by a distance. The laser locator 161 includes one or more laser emitters that can form a cross-shaped light spot on the irradiated surface. The laser emitter of the laser locator 161 faces the lower pressing plate 15, and is used to project a cross-shaped light spot on the lower pressing plate 15 to further accurately position the thermal transfer material. The position of the laser locator 161 on the locator bracket 160 can be changed to adapt to different positioning requirements.

[0034] The control pedal 17 is connected to the control cabinet 19 via a cable passing through the drive housing 11. When pressed, the control pedal 17 outputs the same signal as the start button 1212. The purpose of providing the control pedal 17 is to reduce the risk of the operator approaching the heated lower pressing plate 15 during the operation of the double-station heat transfer machine 1, and to improve the overall operational safety of the double-station heat transfer machine 1. The start button 1212 and the control pedal 17 are used to start the operation of the double-station heat transfer machine 1, that is, pressing the start button 1212 and stepping on the control pedal 17 can control the movement of the pressing plate control unit 12 between the first position and the second position, and the movement of the upper pressing plate 13 between the raised position and the pressed position.

[0035] The control cabinet 19 is arranged at the rear side of the base 10 (ie, Figure 2 The right side of the figure) is connected to the platen control unit 12 via a cable. A PLC controller for controlling the operation of the double-station thermal transfer machine 1 is provided in the control cabinet 19. The PLC controller has scalability and can be independently customized according to the usage habits of different operators. In addition, the PLC controller has a long service life and high reliability.

[0036] The safety grating device 18 is connected to the corner of the base 10 via a connecting rod. Specifically, the double-station thermal transfer machine 1 includes two safety grating devices 18. The two safety grating devices 18 are respectively arranged at the corners of different extensions of the base 10. Each safety grating device 18 includes a transmitter and a receiver. A plurality of infrared transmitting tubes are arranged in the transmitter. A plurality of infrared receiving tubes of the same number and arrangement as the plurality of infrared transmitting tubes are arranged in the receiver. Each infrared transmitting tube in the transmitter of the safety grating device 18 is aligned with the corresponding infrared receiving tube in the receiver of the other safety grating device 18 to form a series of parallel infrared rays, also known as infrared gratings, between the two safety grating devices 18. When an object or a person (such as an operator) passes through the infrared grating, a part of the infrared rays is blocked, so that the parameters of the infrared receiving tube change (for example, from a low level to a high level). According to the parameters of the infrared receiving tube, it can be determined whether an object or a person (such as an operator) passes through the infrared grating. Theoretically, the more infrared rays there are between two safety grating devices 18, the more accurate the detection is. However, in practical applications, the number of infrared rays between two safety grating devices 18 generally does not exceed 48. This is a reasonable setting after considering the height of the grating and the spacing between adjacent infrared rays. Similarly, in the double-station heat transfer machine 1 of the present application, the number of infrared transmitting tubes and infrared receiving tubes in the transmitter and receiver of the safety grating device 18 is 24-48. The position of the safety grating device 18 is set so that the infrared grating generated by the safety grating device 18 covers the front side of the double-station heat transfer machine 1 (i.e., Figure 2 on the left side of the image).

[0037] After the control pedal 17 or the start button 1212 is pressed, the duplex heat transfer machine 1 will not start immediately, but will start after a delay so that the operator can move to a safe position, thereby improving the safety of the duplex heat transfer machine 1. The safe position generally includes the outer position of the infrared grating generated by the safety grating device 18 (i.e., the side away from the duplex heat transfer machine 1). When the duplex heat transfer machine 1 is running, the PLC controller monitors the output signal of the safety grating device 18 in real time. When an object or a person (such as an operator) passes through the infrared grating, the PLC controller will immediately stop all operations of the duplex heat transfer machine 1. In order to further improve the overall operational safety of the duplex heat transfer machine 1, the control pedal 17 can also be set on the outside of the safety grating device 18, that is, the control pedal 17 and the rest of the duplex heat transfer machine 1 are on both sides of the infrared grating generated by the safety grating device 18.

[0038] It is understandable that the double-station heat transfer machine 1 may further include more safety grating devices 18, such as three or four safety grating devices 18. Taking four safety grating devices 18 as an example, they may be connected to the four corners of the base 10 via connecting rods, respectively, so that the infrared grating generated by the safety grating devices 18 covers the front, rear, left and right sides of the double-station heat transfer machine 1. In this way, objects or people (such as operators) approaching the double-station heat transfer machine 1 from the front, rear, left and right sides of the double-station heat transfer machine 1 will be detected, so as to maximize the safety of the double-station heat transfer machine 1.

[0039] Figure 4 1 is a partially exploded perspective view of the base and lower pressure plate bracket of the double-station heat transfer machine according to the present application. Figure 4 As shown, the base 10 has a "concave" cross-sectional shape, that is, the base 10 includes a straight portion with a rectangular cross-section and two spaced extensions with rectangular cross-sections arranged on one side of the straight portion. The use of a "concave" cross-sectional shape instead of a rectangular cross-sectional shape can reduce the weight of the base 10 while maintaining its basic strength. Two lower pressing plate brackets 14 are respectively arranged on the two extensions of the base 10. Each lower pressing plate bracket 14 includes two supporting side plates 140 and a supporting top plate 141. The supporting side plate 140 extends vertically upward from the extension of the base 10 and has a recess extending in the horizontal direction for accommodating processing waste materials therein. For example, when the material to be processed cannot be fully placed within the range of the pressing plate due to its large size, the excess material to be processed can be bent and placed in the recess of the supporting side plate to keep the surrounding environment of the double-station thermal transfer machine 1 clean and tidy. The supporting top plate 141 is horizontally connected to the top of the two adjacent supporting side plates 140, and a quick-release positioning hole 142 is provided in the center. The lower pressure plate bracket 14 also includes a quick release handle 143 (in Figure 4 The lower pressing plate 15 is arranged on the corresponding lower pressing plate bracket 14.

[0040] Figure 5 1 is an exploded perspective view of the lower pressing plate of the double-station heat transfer machine according to the present application. Figure 5 As shown, the lower pressing plate 15 includes a base plate 150, a silicone pad 151 and a quick release seat 152. The silicone pad 151 is arranged on the top of the base plate 150, and a positioning grid (not shown in the figure) for positioning the thermal transfer material is drawn on its top surface. The base plate 150 and the silicone pad 151 have a rectangular cross-sectional shape, preferably a cross-sectional shape in the positive direction. The quick release seat 152 is arranged at the bottom of the base plate 150, and its size is set to match the quick release positioning hole 142 (see Figure 4) corresponding to the size, so as to be locked to the lower pressing plate bracket 14 by means of the quick release handle 143. In this way, the quick replacement of the lower pressing plate 15 can be achieved by means of the quick release handle 143, so that the working efficiency is improved.

[0041] The foregoing description of the embodiments has been provided for illustrative and descriptive purposes. It is not intended to be exhaustive or to limit the embodiments to the described variants. Many modifications and variations will be apparent to those skilled in the art. The embodiments are selected and described in order to best illustrate the principles and practical applications, so that those skilled in the art can understand the embodiments in their various embodiments and various modifications suitable for their intended use. Within the framework of the embodiments, the above-mentioned components and features can be combined between different embodiments.

Claims

1. A double-station heat transfer machine (1), comprising: Base (10); A driving box (11), which is arranged on the base (10); A pressure plate control unit (12), which is movably arranged on the driving housing (11) and comprises a support arm (120) and a control terminal (121); an upper pressing plate (13) connected to the pressing plate control unit (12) and driven by the pressing plate control unit (12) to move between a raised position and a pressed position; Two lower pressing plate brackets (14) are arranged on the base (10); Two lower pressing plates (15), which are respectively arranged on corresponding lower pressing plate brackets (14), one of the two lower pressing plates (15) corresponds to a first position of a pressing plate control unit (12) on a driving box (11), and the other of the two lower pressing plates (15) corresponds to a second position of the pressing plate control unit (12) on the driving box (11); It is characterized in that The double-station heat transfer machine (1) further comprises two safety grating devices (18), which are arranged at different corners of the base (10) and are configured to generate an infrared grating therebetween; Each safety light barrier device (18) includes a transmitter and a receiver; A plurality of infrared transmitting tubes are arranged in the transmitter; The receiver is provided with a plurality of infrared receiving tubes which are the same in number and arrangement as the infrared transmitting tubes in the transmitter; and Each infrared transmitting tube in the transmitter of the safety grating device (18) is aligned with the corresponding infrared receiving tube in the receiver of another safety grating device (18).

2. The double-station thermal transfer machine (1) according to claim 1, wherein: The positions of the two safety grating devices (18) are arranged so that the infrared grating covers one side of the double-station thermal transfer machine (1).

3. The double-station thermal transfer machine (1) according to claim 1, wherein: The support arm (120) is connected to a slide rail in the drive housing (11) so as to translate on the slide rail; The control terminal (121) is arranged at the top of the support arm (120), and comprises a status display screen (1211), an emergency stop button (1210) and a start button (1212); The status display screen (1211) is configured to display the current and predetermined operating status of the double-station thermal transfer machine (1) and includes buttons or a touch screen for inputting operating parameters; The emergency stop button (1210) is arranged near the status display screen (1211) and has an anti-mistouch structure; The start button (1212) is arranged on the control terminal (121) at a distance from the emergency stop button (1210).

4. The double-station thermal transfer machine (1) according to claim 1, wherein: Each lower pressure plate bracket (14) comprises two supporting side plates (140), a supporting top plate (141), and a quick-release handle (143) arranged on the supporting side plates (140); Two supporting side plates (140) extend vertically upward from the base (10) and have recessed portions extending in a horizontal direction; The supporting top plate (141) is horizontally connected to the tops of the two supporting side plates (140), and a quick-release positioning hole (142) is provided at the center.

5. The double-station thermal transfer machine (1) according to claim 4, wherein: The lower pressing plate (15) comprises a base plate (150), a silicone pad (151) and a quick-release seat (152); The silica gel pad (151) is arranged on the top of the substrate (150), and a positioning grid for positioning the thermal transfer material is drawn on the top surface thereof; The quick release seat (152) is arranged at the bottom of the base plate (150), and its size is set to correspond to the size of the quick release positioning hole (142), so as to be locked to the lower pressure plate bracket (14) by means of the quick release handle (143).

6. The double-station thermal transfer machine (1) according to claim 1, wherein: The pressing plate control unit (12) comprises a hydraulic push rod or a pneumatic push rod for driving the upper pressing plate (13); The upper pressing plate (13) includes a heating unit for heating the bottom surface of the upper pressing plate (13).

7. The double-station thermal transfer machine (1) according to claim 1, wherein: The double-station heat transfer machine (1) also includes: A control cabinet (19) is arranged on one side of the base (10) and is connected to the pressure plate control unit (12) via a cable passing through the drive housing (11); The control cabinet (19) includes a PLC controller for controlling the operation of the double-station thermal transfer machine (1).

8. The double-station thermal transfer machine (1) according to claim 7, wherein: The double-station heat transfer machine (1) also includes: A control pedal (17) is connected to a control cabinet (19) via a cable and is configured to output the same signal as a start button (1212) when pressed.

9. The double-station thermal transfer machine (1) according to claim 1, wherein: The double-station heat transfer machine (1) also includes: A laser positioning device (16), which is arranged on the base (10) and comprises a positioner bracket (160) and a laser positioner (161); The locator bracket (160) includes two vertical frame parts extending vertically upward from two corners of the base (10) and a horizontal frame part horizontally connected to the top ends of the two vertical frame parts; wherein the laser locator (161) is disposed on a horizontal frame portion of the locator bracket (160) and comprises one or more laser emitters configured to form a cross-shaped light spot on an irradiated surface; Wherein, the laser emitter is configured to face the lower pressing plate (15).

10. The double-station thermal transfer machine (1) according to claim 9, wherein: The laser positioning device (16) comprises a plurality of laser positioners (161) arranged at intervals from each other.

Images