A device for replacing the printing roller of a hot stamping machine

Abstract

The utility model relates to a kind of oil discharge device for replacing plate roller of gold stamping machine.It relates to gold stamping printing equipment technical field.The application specifically includes support frame, the plate roller frame rotationally connected with support frame, and the oil receiving bucket located on support frame, the plate roller for replacement is located on plate roller frame, when plate roller frame rotates on support frame, it drives plate roller to rotate to inclined state, so that heat transfer oil in plate roller flows out from the lower end of plate roller, oil receiving bucket is located on one side of plate roller frame, to receive heat transfer oil flowing in plate roller.The utility model drives plate roller to rotate to inclined state synchronously by rotating plate roller frame on support frame, so that heat transfer oil in plate roller automatically flows into oil receiving bucket on one side, thereby completing the oil discharge step of plate roller, so that the oil discharge operation of plate roller is more simple and convenient, easy to implement, reduce the risk that heat transfer oil splashes and scalds operator, thereby improve production efficiency, and guarantee the personal safety of operator.

Description

Technical Field

[0001] This utility model relates to the technical field of hot stamping printing equipment, and in particular to a tool for replacing hot stamping machines. Oil discharge device for printing rollers. Background Technology

[0002] Hot stamping is a process in which electroplated aluminum foil is applied to the surface of a substrate under specific temperature and pressure. The printed images and text exhibit a strong metallic luster, with bright and eye-catching colors that never fade. In particular, gold and silver electroplated aluminum foil, with its magnificent and elegant decoration, embellishes the surface of printed materials, enhances the artistry of the printed products, and plays a role in highlighting the theme. Therefore, hot stamping is widely used on high-end and exquisite packaging, trademarks, calendars, and book covers. Hot stamping machines are the equipment used to complete the hot stamping process.

[0003] During the conversion process of a hot stamping machine, it is necessary to replace the matching hot stamping roller. The replacement of the hot stamping roller mainly includes the following steps: 1. Remove the hot stamping roller from the hot stamping machine; 2. Remove the heating element used to heat the heat transfer oil in the hot stamping roller from the roller; 3. Drain the oil from the replaced hot stamping roller, expelling the heat transfer oil; 4. Add the drained heat transfer oil to the newly replaced hot stamping roller; 5. Insert the heating element into the newly replaced hot stamping roller and install the new hot stamping roller on the hot stamping machine.

[0004] In the existing technology, the step of draining oil from the replaced hot stamping roller is usually carried out on a simple operating platform. At this time, because the heat transfer oil has a high temperature, it is easy for the heat transfer oil to spill during the draining process, which may lead to a safety accident that burns the operator. Utility Model Content

[0005] The purpose of this invention is to address the shortcomings of the prior art by providing an oil draining device for changing the printing roller of a hot stamping machine. This device simplifies and makes the oil draining operation of the printing roller easier to implement, reduces the risk of heat transfer oil spilling and scalding operators, thereby improving production efficiency and ensuring the personal safety of operators.

[0006] This utility model proposes an oil discharge device for changing printing rollers in a hot stamping machine, including a support frame, a printing roller frame rotatably connected to the support frame, and an oil receiving bucket disposed on the support frame. The printing roller to be replaced is disposed on the printing roller frame. When the printing roller frame rotates on the support frame, it drives the printing roller to rotate to an inclined state, so that the heat-conducting oil in the printing roller flows out from the lower end of the printing roller. The oil receiving bucket is located on one side of the printing roller frame and is used to collect the heat-conducting oil flowing out of the printing roller.

[0007] Furthermore, the oil discharge device also includes an inclined locking component. When the printing roller frame rotates on the support frame and drives the printing roller to rotate to an inclined state, the inclined locking component fixes the printing roller frame on the support frame.

[0008] Furthermore, the support frame includes a support base plate extending in a horizontal direction, and two support frames extending in a vertical direction on the support base plate. The two support frames are arranged in parallel and spaced apart. The printing roller frame is located between the two support frames, and its two ends are rotatably connected to the two support frames respectively.

[0009] Furthermore, each of the two supporting frames is provided with a rotating shaft on one side opposite to the other, and the two ends of the printing roller frame are provided with rotating holes, and the rotating shaft is inserted into the rotating holes.

[0010] Furthermore, the printing roller frame includes a main frame and a mounting component disposed on the main frame. The main frame is rotatably connected to the support frame, and the mounting component detachably mounts the printing roller on the main frame.

[0011] Furthermore, the main frame is provided with semi-circular pivot mounting holes at both the front and rear ends. The mounting component includes two semi-circular mounting plates respectively located at the front and rear ends of the main frame. One end of the semi-circular mounting plate is rotatably connected to the main frame, and the other end is detachably connected to the main frame. When the other end of the semi-circular mounting plate is connected to the main frame, the pivot mounting hole and the semi-circular mounting plate form a complete circular mounting hole.

[0012] Furthermore, the other end of the semi-circular mounting plate is provided with a through hole, the main frame is provided with a threaded hole, and the mounting component also includes a bolt that passes through the through hole and is screwed into the threaded hole at one end.

[0013] Furthermore, the support frame is provided with a first insertion hole, the printing roller frame is provided with a second insertion hole, and the tilting locking member is a U-shaped connecting rod with one end inserted into the first insertion hole and the other end inserted into the second insertion hole.

[0014] Furthermore, the support base plate is provided with a limiting groove, the bottom of the oil receiving drum is inserted into the limiting groove, and the bottom of the support base plate is provided with rollers, which abut against the ground so that the support frame can move on the ground.

[0015] Furthermore, a rotating handle is provided on one side of the printing roller frame. One end of the rotating handle is fixedly connected to the printing roller frame, and the other end extends away from the printing roller frame, for rotating the printing roller frame on the support frame.

[0016] The oil-discharging device for changing the printing roller of a hot stamping machine proposed in this utility model has the following beneficial effects: (1) This oil discharge device rotates on the support frame through the plate roller frame, which drives the plate roller to rotate synchronously to the inclined state, so that the heat transfer oil in the plate roller flows out from the lower end of the plate roller under its own gravity. At this time, the oil receiving tank is located at the lower end of the plate roller to receive the heat transfer oil flowing out of the plate roller, thereby completing the oil discharge step of the plate roller. This makes the oil discharge operation of the plate roller simpler, more convenient and easier to implement, reduces the risk of heat transfer oil spilling and scalding the operator, thereby improving production efficiency and ensuring the personal safety of the operator. (2) This oil draining device also includes an inclined locking component, which fixes the printing roller frame to the support frame, so that the printing roller frame is kept at an inclined angle, thereby keeping the printing roller fixed on the printing roller frame at an inclined angle, and thus the heat transfer oil in the printing roller flows out from the lower end of the printing roller under its own gravity, making the oil draining operation of the printing roller simpler, more convenient and easier to implement. (3) The printing roller frame of this oil discharge device includes a main frame and an installation component. The installation component is set on the main frame. The printing roller is detachably installed on the main frame through the installation component. When the main frame rotates on the two support frames, it drives the printing roller to rotate to an inclined state, so that the heat transfer oil in the printing roller flows from the lower end of the printing roller into the oil receiving tank. After all the heat transfer oil in the printing roller is discharged, the printing roller can be removed from the printing roller frame through the installation component, so that the oil discharge operation of the printing roller is simpler, more convenient and easier to implement. (4) The front and rear ends of the main frame of this oil discharge device are provided with rotating shaft mounting holes. The rotating shaft mounting holes are semi-circular structures. The mounting components include two semi-circular mounting plates. The two semi-circular mounting plates are located at the front and rear ends of the main frame respectively. One end of the semi-circular mounting plate is rotatably connected to the main frame, and the other end is detachably connected to the main frame. Thus, the printing roller is detachably mounted on the main frame through the semi-circular mounting plates. (5) The support frame of this oil discharge device is provided with a first insertion hole, and the printing roller frame is provided with a second insertion hole. The inclined locking part is a U-shaped connecting rod. One end of the U-shaped connecting rod is inserted into the first insertion hole, and the other end is inserted into the second insertion hole, so that the main frame is kept at an inclined angle, and the printing roller fixed on the main frame is kept at an inclined angle, which makes the oil discharge operation of the printing roller simpler, more convenient and easier to implement. (6) The bottom of the support base plate of this oiling device is equipped with rollers. The rollers abut against the ground, allowing the support frame to move on the ground. When changing the printing roller of the hot stamping machine, the oiling device can be moved to the location of the hot stamping machine by means of the rollers, making it easier to install the printing roller removed from the hot stamping machine on the support frame. This makes the oiling operation of the printing roller simpler, more convenient and easier to implement. Attached Figure Description

[0017] The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments of the present invention and, together with the description, serve to explain the principles of the present invention. In these drawings, similar reference numerals are used to denote similar elements.

[0018] Figure 1 This is a schematic diagram of the structure of an oil-removing device for changing the printing roller of a hot stamping machine, according to an embodiment of the present invention. Figure 2 This is a schematic diagram of the structure of a support frame for an oil discharge device for changing the printing roller of a hot stamping machine, according to an embodiment of the present invention. Figure 3 This is a schematic diagram of the structure of a printing roller frame for an oiling device used in changing printing rollers of a hot stamping machine, according to an embodiment of the present invention.

[0019] In the diagram: 1. Support frame; 11. Support base plate; 111. Limiting groove; 12. Support frame; 121. Rotating shaft; 122. First insertion hole; 13. Roller; 2. Printing roller frame; 21. Main frame; 211. Rotating hole; 212. Rotating shaft mounting hole; 213. Second insertion hole; 22. Semi-circular mounting plate; 23. Bolt; 24. Rotating handle; 3. Oil receiving tank; 4. Inclined locking component; 5. Printing roller. Detailed Implementation

[0020] 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. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the scope of protection of this utility model.

[0021] Please see Figures 1-3 An oil draining device for changing printing rollers in a hot stamping machine according to an embodiment of the present invention includes a support frame 1, a printing roller frame 2 rotatably connected to the support frame 1, and an oil receiving tank 3 disposed on the support frame 1. The printing roller 5 to be replaced is disposed on the printing roller frame 2. When the printing roller frame 2 rotates on the support frame 1, it drives the printing roller 5 to rotate to an inclined state so that the heat-conducting oil in the printing roller 5 flows out from the lower end of the printing roller 5. The oil receiving tank 3 is located on one side of the printing roller frame 2 and is used to receive the heat-conducting oil flowing out of the printing roller 5.

[0022] In this application, the oil discharge device includes a support frame 1, a printing roller frame 2, and an oil receiving tank 3. Both the printing roller frame 2 and the oil receiving tank 3 are mounted on the support frame 1, and the printing roller frame 2 is rotatably connected to the support frame 1. When replacing the printing roller 5 of the hot stamping machine, the removed printing roller 5 is fixed on the printing roller frame 2. The printing roller frame 2 rotates on the support frame 1, causing the printing roller 5 to rotate synchronously to an inclined state, allowing the heat-conducting oil in the printing roller 5 to flow out from the lower end of the printing roller 5 under its own gravity.

[0023] At this time, the oil receiving bucket 3 is located at the lower end of the printing roller 5, and receives the heat transfer oil flowing out of the printing roller 5, thereby completing the oil discharge step of the printing roller 5. This makes the oil discharge operation of the printing roller 5 simpler, more convenient and easier to implement, reduces the risk of heat transfer oil spilling and scalding operators, thereby improving production efficiency and ensuring the personal safety of operators.

[0024] In this embodiment, the oil discharge device also includes an inclined locking member 4. When the printing roller frame 2 rotates on the support frame 1 and drives the printing roller 5 to rotate to an inclined state, the inclined locking member 4 fixes the printing roller frame 2 on the support frame 1, so that the printing roller frame 2 maintains an inclined angle, thereby keeping the printing roller 5 fixed on the printing roller frame 2 at an inclined angle, and thus allowing the heat transfer oil in the printing roller 5 to flow out from the lower end of the printing roller 5 under its own gravity.

[0025] The heat transfer oil flowing out of the printing roller 5 is then collected by the oil receiving tank 3, making the oil discharge operation of the printing roller 5 simpler, more convenient and easier to implement, reducing the risk of heat transfer oil spilling and scalding operators, thereby improving production efficiency and ensuring the personal safety of operators.

[0026] Specifically, in this embodiment, the support frame 1 includes a support base plate 11 extending in the horizontal direction, and two support frames 12 extending in the vertical direction on the support base plate 11. The two support frames 12 are arranged in parallel and spaced apart. The printing roller frame 2 is located between the two support frames 12, and its two ends are rotatably connected to the two support frames 12 respectively.

[0027] In this application, the support frame 1 includes a support base plate 11 and two support frames 12. The support base plate 11 extends horizontally, and the two support frames 12 extend vertically on the support base plate 11 and are arranged in parallel at intervals. The printing roller frame 2 is located between the two support frames 12, and its two ends are rotatably connected to the two support frames 12 respectively, thereby supporting the printing roller frame 2 through the two support frames 12, lifting the printing roller frame 2 away from the support base plate 11, and reserving space for the rotation of the printing roller frame 2.

[0028] The printing roller frame 2 rotates on the two support frames 12, causing the printing roller 5 fixed on the printing roller frame 2 to rotate synchronously to an inclined state. This allows the heat transfer oil in the printing roller 5 to automatically flow out from the lower end of the printing roller 5 until the heat transfer oil flows into the oil receiving tank 3 on one side of the printing roller frame 2. This makes the oil discharge operation of the printing roller 5 simpler, more convenient, and easier to implement, reducing the risk of heat transfer oil spilling and scalding operators, thereby improving production efficiency and ensuring the personal safety of operators.

[0029] Specifically, in this embodiment, a rotating shaft 121 is provided on one side of each of the two supporting frames 12, and a rotating hole 211 is provided on both sides of the printing roller frame 2. When the printing roller frame 2 is located between the two supporting frames 12, the rotating shaft 121 on the opposite side of the two supporting frames 12 is inserted and engaged with the rotating holes 211 on both sides of the printing roller frame 2, thereby supporting the printing roller frame 2 through the two supporting frames 12, lifting the printing roller frame 2 away from the supporting base plate 11, and enabling the printing roller frame 2 to rotate on the two supporting frames 12.

[0030] In this embodiment, the printing roller frame 2 includes a main frame 21 and a mounting component disposed on the main frame 21. The main frame 21 is rotatably connected to the support frame 1, and the mounting component detachably mounts the printing roller 5 on the main frame 21.

[0031] In this application, the printing roller frame 2 includes a main frame 21 and mounting components. The main frame 21 is arranged in a circle, and two rotating holes 211 are respectively provided at both ends of the main frame 21. The rotating shafts 121 on opposite sides of the two support frames 12 are respectively inserted into the rotating holes 211 at both ends of the main frame 21 to achieve a rotating connection between the main frame 21 and the two support frames 12.

[0032] The mounting component is set on the main frame 21. When replacing the hot stamping machine's printing roller 5, the replaced printing roller 5 is placed on the main frame 21. The printing roller 5 is detachably installed on the main frame 21 through the mounting component. When the main frame 21 rotates on the two support frames 12, it drives the printing roller 5 to rotate to an inclined state, so that the heat transfer oil in the printing roller 5 flows from the lower end of the printing roller 5 into the oil receiving tank 3. After all the heat transfer oil in the printing roller 5 has been drained, the printing roller 5 can be removed from the printing roller frame 2 through the mounting component, making the oil draining operation of the printing roller 5 simpler, more convenient and easier to implement.

[0033] In this embodiment, the main frame 21 has semi-circular pivot mounting holes 212 at both the front and rear ends. The mounting component includes two semi-circular mounting plates 22 respectively located at the front and rear ends of the main frame 21. One end of the semi-circular mounting plate 22 is rotatably connected to the main frame 21, and the other end is detachably connected to the main frame 21. When the other end of the semi-circular mounting plate 22 is connected to the main frame 21, the pivot mounting hole 212 and the semi-circular mounting plate 22 form a complete circular mounting hole.

[0034] In this application, the printing roller 5 includes a roller body and rotating shafts located at both ends of the roller body, wherein the cross-sectional diameter of the roller body is larger than the cross-sectional diameter of the rotating shafts. The main frame 21 has rotating shaft mounting holes 212 at both its front and rear ends, and the rotating shaft mounting holes 212 have a semi-circular structure. The mounting component includes two semi-circular mounting plates 22, which are located at the front and rear ends of the main frame 21, respectively. One end of each semi-circular mounting plate 22 is rotatably connected to the main frame 21, and the other end is detachably connected to the main frame 21.

[0035] When installing the printing roller 5 on the printing roller frame 2, first place the printing roller 5 on the main frame 21, and make the roller body located in the main frame 21. The rotating shafts at both ends of the roller body are respectively located in the rotating shaft mounting holes 212 at the front and rear ends of the main frame 21. Then, the other end of the semi-circular mounting plate 22 is connected to the main frame 21, so that the semi-circular mounting plate 22 closes the rotating shaft mounting hole 212. At this time, the semi-circular mounting plate 22 and the rotating shaft mounting hole 212 form a complete circular mounting hole. The circular mounting hole is adapted to the outer circumference of the rotating shaft, thereby fixing the printing roller 5 on the printing roller frame 2.

[0036] After all the heat-conducting oil in the printing roller 5 is released, it is separated from the main frame 21 by the other end of the semi-circular mounting plate 22, so that the semi-circular mounting plate 22 can rotate on the main frame 21 and open the rotating shaft mounting hole 212. At this time, the semi-circular mounting plate 22 no longer limits the rotating shaft, and the printing roller 5 can be removed from the main frame 21, thus completing the disassembly of the printing roller 5 on the printing roller frame 2.

[0037] Specifically, in this embodiment, the other end of the semi-circular mounting plate 22 is provided with a through hole, and the main frame 21 is provided with a threaded hole. When the semi-circular mounting plate 22 is on the main frame 21 and rotates around the end of it that is rotatably connected to the main frame 21 until the other end of the semi-circular mounting plate 22 abuts against the main frame 21, the through hole on the semi-circular mounting plate 22 and the threaded hole on the main frame 21 are coaxial.

[0038] The mounting components also include bolts 23. When the through holes on the semi-circular mounting plate 22 are coaxial with the threaded holes on the main frame 21, one end of the bolt 23 passes through the through holes in sequence and is screwed into the threaded holes, thereby detachably connecting the other end of the semi-circular mounting plate 22 to the main frame 21, thus realizing the installation and removal of the printing roller 5 on the main frame 21.

[0039] In this embodiment, the support frame 1 is provided with a first insertion hole 122, and the printing roller frame 2 is provided with a second insertion hole 213. Specifically, the first insertion hole 122 is provided on one of the support frames 12, and the second insertion hole 213 is provided on the side of the main frame 21 close to the support frame 12. The inclined locking member 4 is a U-shaped connecting rod.

[0040] When the main frame 21 rotates on the two support frames 12, causing the printing roller 5 to rotate synchronously to a specified angle, one end of the U-shaped connecting rod is inserted into the first insertion hole 122 and the other end is inserted into the second insertion hole 213, thereby keeping the main frame 21 at an inclined angle, and thus keeping the printing roller 5 fixed on the main frame 21 at an inclined angle.

[0041] At this time, the heat transfer oil in the printing roller 5 can flow out from the lower end of the printing roller 5 under its own gravity until it flows into the oil receiving tank 3, making the oil discharge operation of the printing roller 5 simpler, more convenient and easier to implement, reducing the risk of heat transfer oil spilling and scalding the operator, thereby improving production efficiency and ensuring the personal safety of the operator.

[0042] In this embodiment, a limiting groove 111 is provided on the support base plate 11. When the oil receiving tank 3 is placed on the support base plate 11, the bottom of the oil receiving tank 3 is inserted into the limiting groove 111, thereby limiting the bottom of the oil receiving tank 3 through the limiting groove 111. This not only guides the position of the oil receiving tank 3 on the support base plate 11, but also improves the stability of the oil receiving tank 3 on the support base plate 11.

[0043] In this application, the bottom of the support base plate 11 is provided with rollers 13. The rollers 13 abut against the ground, allowing the support frame 1 to move on the ground. Thus, when the hot stamping machine's printing roller 5 is replaced, the rollers 13 move the oiling device to the location of the hot stamping machine, making it easier to install the replaced printing roller 5 on the support frame 1. This further simplifies and makes the oiling operation of the printing roller 5 simpler, more convenient, and easier to implement.

[0044] In this embodiment, a rotating handle 24 is provided on one side of the printing roller frame 2. One end of the rotating handle 24 is fixedly connected to the printing roller frame 2, and the other end extends away from the printing roller frame 2. Specifically, one end of the rotating handle 24 is fixedly connected to the main frame 21, and the other end extends away from the main frame 21. Thus, when it is necessary to rotate the main frame 21 on the two support frames 12, the operator can rotate the main frame 21 by holding the rotating handle 24, which further makes the oiling operation of the printing roller 5 simpler, more convenient and easier to implement.

[0045] The above-described contents can be implemented individually or in combination in various ways, and all such variations are within the protection scope of this utility model.

[0046] It should be noted that, in this document, relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes the element.

[0047] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model.

Claims

1. An oil-discharging device for changing the printing roller of a hot stamping machine, characterized in that: The system includes a support frame (1), a printing roller frame (2) rotatably connected to the support frame (1), and an oil receiving tank (3) disposed on the support frame (1). A replacement printing roller (5) is disposed on the printing roller frame (2). When the printing roller frame (2) rotates on the support frame (1), it drives the printing roller (5) to rotate to an inclined state so that the heat transfer oil in the printing roller (5) flows out from the lower end of the printing roller (5). The oil receiving tank (3) is located on one side of the printing roller frame (2) and is used to receive the heat transfer oil flowing out of the printing roller (5).

2. The oil-discharging device for changing the printing roller of a hot stamping machine as described in claim 1, characterized in that: The oil discharge device also includes an inclined locking member (4). When the printing roller frame (2) rotates on the support frame (1) and drives the printing roller (5) to rotate to an inclined state, the inclined locking member (4) fixes the printing roller frame (2) on the support frame (1).

3. The oil-discharging device for changing the printing roller of a hot stamping machine as described in claim 1, characterized in that: The support frame (1) includes a support base plate (11) extending in the horizontal direction, and two support frames (12) extending in the vertical direction on the support base plate (11). The two support frames (12) are arranged in parallel and spaced apart. The printing roller frame (2) is located between the two support frames (12), and its two ends are rotatably connected to the two support frames (12) respectively.

4. The oil-discharging device for changing the printing roller of a hot stamping machine as described in claim 3, characterized in that: A rotating shaft (121) is provided on one side of each of the two supporting frames (12), and a rotating hole (211) is provided on both sides of the printing roller frame (2). The rotating shaft (121) is inserted into the rotating hole (211).

5. The oil-discharging device for changing the printing roller of a hot stamping machine as described in claim 1, characterized in that: The printing roller frame (2) includes a main frame (21) and an mounting component disposed on the main frame (21). The main frame (21) is rotatably connected to the support frame (1). The mounting component detachably mounts the printing roller (5) on the main frame (21).

6. The oil-discharging device for changing the printing roller of a hot stamping machine as described in claim 5, characterized in that: The main frame (21) has semi-circular pivot mounting holes (212) at both the front and rear ends. The mounting component includes two semi-circular mounting plates (22) respectively located at the front and rear ends of the main frame (21). One end of the semi-circular mounting plate (22) is rotatably connected to the main frame (21), and the other end is detachably connected to the main frame (21). When the other end of the semi-circular mounting plate (22) is connected to the main frame (21), the pivot mounting hole (212) and the semi-circular mounting plate (22) form a complete circular mounting hole.

7. The oil-discharging device for changing the printing roller of a hot stamping machine as described in claim 6, characterized in that: The other end of the semi-circular mounting plate (22) is provided with a through hole, the main frame (21) is provided with a threaded hole, and the mounting component also includes a bolt (23) that passes through the through hole and is screwed into the threaded hole.

8. The oil-discharging device for changing the printing roller of a hot stamping machine as described in claim 2, characterized in that: The support frame (1) is provided with a first insertion hole (122), the printing roller frame (2) is provided with a second insertion hole (213), and the inclined locking member (4) is a U-shaped connecting rod with one end inserted into the first insertion hole (122) and the other end inserted into the second insertion hole (213).

9. An oil-discharging device for changing the printing roller of a hot stamping machine as described in claim 3, characterized in that: The support base plate (11) is provided with a limiting groove (111), and the bottom of the oil receiving tank (3) is inserted into the limiting groove (111). The bottom of the support base plate (11) is provided with a roller (13), and the roller (13) abuts against the ground so that the support frame (1) can move on the ground.

10. An oil-discharging device for changing the printing roller of a hot stamping machine as described in claim 1, characterized in that: A rotating handle (24) is provided on one side of the printing roller frame (2). One end of the rotating handle (24) is fixedly connected to the printing roller frame (2), and the other end extends away from the printing roller frame (2) for rotating the printing roller frame (2) on the support frame (1).

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