A gilding machine's pneumatic quick foil changing mechanism

Abstract

The utility model provides a kind of gilding machine's pneumatic quick foil changing mechanism, including loading platform;The unwinding mechanism is installed on the loading platform;The unwinding mechanism includes first load shaft;The side of first load shaft is provided with second load shaft;Pneumatic push mechanism is provided on the loading platform, and the pneumatic push mechanism is rotatably connected with second load shaft, and the pneumatic push mechanism is used to drive second load shaft away from or close to first load shaft;Material tray is provided above the loading platform, and the material tray is below between first load shaft and second load shaft, and the bottom of material tray is connected with lifting mechanism.It can conveniently replace loading roller and foil, realize quick foil changing;Meanwhile in the process of changing foil, automatic supporting loading roller and foil can be carried out, without manually supporting, reduce the labor intensity of artificial.

Description

Technical Field

[0001] This utility model relates to the field of hot stamping machines, and in particular to a pneumatic quick foil changing mechanism for hot stamping machines. Background Technology

[0002] In cigarette pack production, hot stamping machines use high temperature and high pressure to precisely transfer electroplated aluminum foil onto the surface of the cigarette pack, achieving a metallic luster effect for brand logos, patterns, or text, which combines decorative and anti-counterfeiting functions.

[0003] When the hot stamping machine is working, the foil is released through the unwinding mechanism for the machine to use. The foil is wound on the carrier roller. After the foil is consumed, the carrier roller with the consumed foil needs to be removed, and then a carrier roller with foil is installed to change the foil.

[0004] In current traditional technologies, such as the existing patent document "CN217024679U A foil feeding and receiving mechanism for a hot stamping machine", the material carrier roller is replaced on the foil feeding shaft. The locking block needs to be manually operated to release the obstruction at the end of the foil feeding shaft. However, the aforementioned manual operation of the locking block causes inconvenience in foil replacement. At the same time, when replacing foil, the foil film also needs to be manually supported, resulting in high labor intensity, time and effort.

[0005] Therefore, a pneumatic quick foil changing mechanism for a hot stamping machine is provided to address the above problems. Utility Model Content

[0006] This invention provides a pneumatic quick foil changing mechanism for a hot stamping machine to solve the technical problem of inconvenient foil replacement.

[0007] This utility model solves the above-mentioned technical problems through the following technical solutions: This utility model provides a pneumatic quick foil changing mechanism for a hot stamping machine, including a platform; an unwinding mechanism is mounted on the platform; the unwinding mechanism includes a first carrier shaft; a second carrier shaft is disposed on one side of the first carrier shaft; a pneumatic pushing mechanism is disposed on the platform, the pneumatic pushing mechanism is rotatably connected to the second carrier shaft, the pneumatic pushing mechanism is used to drive the second carrier shaft away from or towards the first carrier shaft; a material tray is disposed above the platform, the material tray is located below between the first and second carrier shafts, and a lifting mechanism is connected to the bottom of the material tray.

[0008] Preferably, it further includes a material carrier roller, on which a foil film is wound; and non-circular positioning slots are provided at the center of both ends of the material carrier roller.

[0009] Preferably, the first carrier shaft is coaxially fixed with a first insert post, and a first pressure plate is fixedly sleeved on the first carrier shaft; the second carrier shaft is coaxially fixed with a second insert post, and a second pressure plate is fixedly sleeved on the second carrier shaft; the first insert post and the second insert post are respectively connected to the positioning slots at both ends of the carrier roller with clearance fit, and the first pressure plate and the second pressure plate are respectively pressed against both ends of the carrier roller.

[0010] Preferably, the unwinding mechanism includes a first fixed frame fixedly mounted on the platform; the first carrier shaft is rotatably mounted on the first fixed frame, a motor is fixed on one side of the first fixed frame, and the output shaft of the motor is connected to the first carrier shaft.

[0011] Preferably, the lifting mechanism includes a second cylinder fixedly installed on the bottom surface of the platform; the output shaft of the second cylinder is fixed to the bottom of the material tray, a vertical guide post is fixed to the bottom of the material tray, a guide sleeve is fixed on the platform, and the guide post and the guide sleeve are slidably connected.

[0012] Preferably, the pneumatic pushing mechanism includes a slide, a movable frame is fixed on the top of the slide, the movable frame is rotatably connected to the second carrier shaft, the slide is slidably connected to a slide rail fixed to the platform, a transverse first cylinder is provided on both sides of the slide, and the first cylinder is fixed to the platform, the output shaft of the first cylinder is fixed with a connecting seat, and the connecting seat is fixed to the slide.

[0013] Preferably, the top of the slide rail is provided with a plurality of evenly distributed grooves, and each groove is provided with a ball bearing. A baffle is fixed to the top of the slide rail, and the baffle is provided with a plurality of holes, each of which is aligned with a plurality of grooves. The ball bearing passes through the hole and protrudes from above the baffle. The diameter of the hole is smaller than the diameter of the ball bearing.

[0014] Preferably, it further includes a lubrication mechanism, which includes a second fixed frame fixedly installed on the platform; an oil injection component is fixedly installed on the second fixed frame, and the oil inlet end and oil outlet end of the oil injection component are respectively connected to an oil inlet pipe and an oil outlet pipe. The oil inlet pipe is fixedly connected to the bottom of an oil box fixedly installed on one side of the platform, and the oil inlet pipe is connected to an inner cavity opened in the slide rail. A connecting groove is also opened in the slide rail, and the inner cavity is connected to a groove through the connecting groove.

[0015] Preferably, the oil injection assembly includes a cylinder fixed to a second fixing frame, a piston is fitted inside the cylinder, and an oil chamber is formed between one side of the piston and the inner wall of the cylinder. A first one-way valve and a second one-way valve are installed at one end of the cylinder, and one end of the first one-way valve and one end of the second one-way valve are both connected to the oil chamber. The other ends of the first one-way valve and the second one-way valve are respectively connected to an oil outlet pipe and an oil inlet pipe. A movable rod is fixed to the piston and extends outside the cylinder. A stud is fixed to the end of the movable rod away from the piston. A disc is sleeved on the stud, and a nut is threaded onto the stud. The nut and the end face of the movable rod press against the two sides of the disc, respectively. A spring is sleeved on the cylinder, and the two ends of the spring abut against the disc and the second fixing frame, respectively. The end face of the stud faces the connecting seat.

[0016] Preferably, the oil box has an oil filling port on one side of its top, and a sealing cap is installed on the oil filling port.

[0017] Based on common knowledge in the field, the above-mentioned preferred conditions can be combined arbitrarily to obtain various preferred embodiments of this utility model.

[0018] The positive and progressive effects of this utility model are as follows: The aforementioned pneumatic rapid foil changing mechanism for a hot stamping machine, by setting a pneumatic pushing mechanism, can automatically adjust the distance between the second and first carrier shafts. During foil changing, it automatically moves the second carrier shaft away from the first carrier shaft, generating sufficient disassembly and installation distance, eliminating the need for manual release of the end-side obstruction limit. Simultaneously, during installation, it automatically resets the second carrier shaft and inserts it into the end of the material roller for connection, achieving rapid foil changing. Furthermore, by setting a material support tray and a lifting mechanism, it can automatically support the material roller and foil during the foil changing process, eliminating the need for manual support and reducing labor intensity. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the overall structure of the material carrier roller of this utility model in its installed state.

[0020] Figure 2 This is a schematic diagram of the overall structure of the present invention in the state where the second carrier shaft and the carrier roller are separated.

[0021] Figure 3 This is a schematic diagram of the bottom structure of the platform of this utility model.

[0022] Figure 4 This is a schematic diagram of the overall structure of the present invention with the material carrier roller detached.

[0023] Figure 5 This is a schematic diagram of one side of the platform of this utility model.

[0024] Figure 6This is a schematic diagram of the lubrication mechanism and slide rail of this utility model.

[0025] Figure 7 This is a schematic diagram of the internal and external structure of the cylinder of this utility model.

[0026] Figure 8 This is a schematic diagram of the slide rail of this utility model.

[0027] Explanation of reference numerals in the attached figures 1. Platform; 2. First fixed frame; 3. Motor; 4. First carrier shaft; 401. First pressure plate; 402. First insert; 5. Movable frame; 6. Second carrier shaft; 601. Second pressure plate; 602. Second insert; 7. Slide; 8. First cylinder; 9. Connecting seat; 10. Lubrication mechanism; 1001. Oil box; 1002. Second fixed frame; 1003. Sealing cover; 1004. Cylinder; 1005. First one-way valve; 1006. Oil outlet pipe; 1007. ... Two one-way valves; 1008, oil inlet pipe; 1009, piston; 1010, moving rod; 1011, stud; 1012, disc; 1013, nut; 1014, spring; 11, material support plate; 12, second cylinder; 13, guide post; 14, guide sleeve; 15, foil; 1501, material carrier roller; 1502, positioning slot; 16, slide rail; 1601, ball bearing; 1602, baffle; 1603, groove; 1604, inner cavity; 1605, connecting groove. Detailed Implementation

[0028] The present invention will be further described below by way of embodiments, but the present invention is not limited to the scope of the embodiments described herein.

[0029] like Figures 1-8 As shown, a pneumatic quick foil changing mechanism for a hot stamping machine includes a platform 1; an unwinding mechanism is mounted on the platform 1; the unwinding mechanism includes a first carrier shaft 4; and a second carrier shaft 6 is provided on one side of the first carrier shaft 4.

[0030] The platform 1 is equipped with a pneumatic pushing mechanism, which is rotatably connected to the second carrier shaft 6. The pneumatic pushing mechanism is used to drive the second carrier shaft 6 away from or closer to the first carrier shaft 4.

[0031] A material support tray 11 is provided above the platform 1. The material support tray 11 is located below the first carrier shaft 4 and the second carrier shaft 6, and a lifting mechanism is connected to the bottom of the material support tray 11.

[0032] like Figure 2 As shown, it also includes a material carrier roller 1501, on which a foil film 15 is wound; non-circular positioning slots 1502 are provided at the middle of both ends of the material carrier roller 1501.

[0033] like Figure 4 As shown, the first carrier shaft 4 is coaxially fixed with a first insert post 402, and a first pressure plate 401 is fixedly sleeved on the first carrier shaft 4; the second carrier shaft 6 is coaxially fixed with a second insert post 602, and a second pressure plate 601 is fixedly sleeved on the second carrier shaft 6; when the material roller 1501 is in the installation state, the first insert post 402 and the second insert post 602 are respectively connected to the positioning slots 1502 at both ends of the material roller 1501 with clearance fit, and the first pressure plate 401 and the second pressure plate 601 are respectively pressed to both ends of the material roller 1501.

[0034] In practice, the unwinding mechanism is used to unwind the foil 15 on the material carrier roller 1501 to provide foil 15 for the hot stamping machine.

[0035] The first carrier shaft 4 and the second carrier shaft 6 are used to carry the material carrier roller 1501 (the material carrier roller 1501 has a foil 15). The foil can be changed by replacing the material carrier roller 1501 on the first carrier shaft 4 and the second carrier shaft 6.

[0036] When disassembling the material roller 1501 on the first carrier shaft 4 and the second carrier shaft 6, the lifting mechanism drives the material support plate 11 to move upward. The material support plate 11 supports the material roller 1501 to be removed. Then, the pneumatic pushing mechanism drives the second carrier shaft 6 to automatically move away from the first carrier shaft 4, so that there is a sufficient distance between the first carrier shaft 4 and the material roller 1501 (at this distance, the material roller 1501 is pulled down and moved towards the second carrier shaft 6, so that the positioning slot 1502 at one end of the second carrier shaft 6 is not in contact with the second insertion post). When 602 is inserted, the positioning slot 1502 at the other end of the second carrier shaft 6 can be separated from the first insertion post 402); then pull the carrier roller 1501 to separate the carrier roller 1501 from the first insertion post 402, so that the carrier roller 1501 is separated from both the first insertion post 402 and the second insertion post 602. Then the lifting mechanism drives the material tray 11 to move downward, so that the carrier roller 1501 moves to the low position. Then manually remove the carrier roller 1501 to complete the removal of the carrier roller 1501.

[0037] When installing a new material carrier roller 1501, place the material carrier roller 1501 on the material support tray 11. The lifting mechanism drives the material support tray 11 upward, aligning the positioning slots 1502 at both ends of the material carrier roller 1501 with the first insertion post 402 and the second insertion post 602. Then, manually push the material carrier roller 1501 so that the first insertion post 402 is inserted into the positioning slot 1502 at one end of the material carrier roller 1501. Next, the pneumatic pushing mechanism drives the second insertion post 602 to be inserted into the positioning slot 1502 at the other end of the material carrier roller 1501. Finally, the lifting mechanism moves the material support tray 11 to a lower position, completing the installation. During the above installation process, the first carrier shaft 4 and the second carrier shaft 6 can be manually rotated to align the first insertion post 402 and the second insertion post 602 with the positioning slots 1502.

[0038] The above foil changing process can automatically separate the second carrier shaft 6 from the material carrier roller 1501 and form a sufficient distance, and automatically connect the second carrier shaft 6 to the material carrier roller 1501. At the same time, during the disassembly and assembly of the material carrier roller 1501, the material carrier roller 1501 is supported by the material support plate 11 and the lifting mechanism, without the need for manual support, which facilitates foil changing and enables rapid foil changing.

[0039] like Figures 1-4 As shown, the unwinding mechanism includes a first fixed frame 2 fixedly mounted on the platform 1; the first carrier shaft 4 is rotatably mounted on the first fixed frame 2, and a motor 3 is fixed on one side of the first fixed frame 2, the output shaft of the motor 3 being connected to the first carrier shaft 4.

[0040] With the material carrier roller 1501 installed, the motor 3 drives the first carrier shaft 4 to rotate, and the material carrier roller 1501 rotates together with the first carrier shaft 4 to release the foil 15 on the material carrier roller 1501.

[0041] like Figures 1-4 As shown, the lifting mechanism includes a second cylinder 12 fixedly installed on the bottom surface of the platform 1; the output shaft of the second cylinder 12 is fixed to the bottom of the material tray 11, a vertical guide post 13 is fixed to the bottom of the material tray 11, and a guide sleeve 14 is fixed on the platform 1, with the guide post 13 and the guide sleeve 14 slidably connected.

[0042] The extension and retraction of the second cylinder 12 drives the material support plate 11 to move up and down, thereby adjusting the height of the material support plate 11.

[0043] like Figure 5 As shown, the pneumatic pushing mechanism includes a slide 7, a movable frame 5 fixed on the top of the slide 7, the movable frame 5 being rotatably connected to the second carrier shaft 6, the slide 7 being slidably connected to the slide rail 16 fixed to the platform 1, and a transverse first cylinder 8 being provided on both sides of the slide 7, and the first cylinder 8 being fixed to the platform 1. The output shaft of the first cylinder 8 is fixed with a connecting seat 9, and the connecting seat 9 is fixed to the slide 7.

[0044] The extension and retraction of the first cylinder 8 causes the connecting seat 9, the slide 7, the movable frame 5, and the second carrier shaft 6 to move laterally together, so that the second carrier shaft 6 automatically moves away from or closer to the first carrier shaft 4. At the same time, the above movement is guided by the sliding of the slide 7 and the slide rail 16.

[0045] like Figure 6 and Figure 8As shown, the top of the slide rail 16 has a plurality of evenly distributed grooves 1603, and each groove 1603 is provided with a ball bearing 1601. The top of the slide rail 16 is fixed with a baffle 1602, and the baffle 1602 has a plurality of holes, which are respectively aligned with the grooves 1603. The ball bearing 1601 passes through the hole and protrudes from above the baffle 1602. The diameter of the hole is smaller than the diameter of the ball bearing 1601.

[0046] The baffle 1602 and the hole thereon provide a barrier to prevent the ball 1601 from coming off the groove 1603; and the ball 1601 provides rolling friction to the slide block 7 and the slide rail 16 when they slide, thus reducing friction.

[0047] like Figure 6 and Figure 8 As shown, it also includes a lubrication mechanism 10, which includes a second fixed frame 1002 fixedly installed on the platform 1; an oil injection assembly is fixedly installed on the second fixed frame 1002, and the oil inlet end and oil outlet end of the oil injection assembly are respectively connected to an oil inlet pipe 1008 and an oil outlet pipe 1006. The oil inlet pipe 1008 is fixedly connected to the bottom of an oil box 1001 fixedly installed on one side of the platform 1, and the oil inlet pipe 1008 is connected to an inner cavity 1604 opened in a slide rail 16. A connecting groove 1605 is also opened in the slide rail 16, and the inner cavity 1604 is connected to a groove 1603 through the connecting groove 1605.

[0048] The oil is drawn from the oil box 1001 by the oil injection assembly and introduced into the inner cavity 1604. Then, it enters the groove 1603 through the connecting groove 1605 to provide lubrication for the ball bearings 1601, thereby further reducing the friction between the slide block 7 and the slide rail 16 and reducing wear.

[0049] like Figure 7As shown, the oil injection assembly includes a cylinder 1004 fixed to a second mounting bracket 1002. A piston 1009 is fitted inside the cylinder 1004. One side of the piston 1009 and the inner wall of the cylinder 1004 form an oil chamber. A first one-way valve 1005 and a second one-way valve 1007 are installed at one end of the cylinder 1004. One end of the first one-way valve 1005 and one end of the second one-way valve 1007 are both connected to the oil chamber. The other ends of the first one-way valve 1005 and the second one-way valve 1007 are respectively connected to the oil outlet pipe 1006 and the oil inlet pipe 1008. The piston 1009... A movable rod 1010 is fixed to the piston 1009, and the movable rod 1010 extends outside the cylinder 1004. A stud 1011 is fixed to one end of the movable rod 1010 away from the piston 1009. A disc 1012 is sleeved on the stud 1011, and a nut 1013 is threaded onto the stud 1011. The nut 1013 and the end face of the movable rod 1010 press against the two sides of the disc 1012 respectively. A spring 1014 is sleeved on the cylinder 1004. The two ends of the spring 1014 abut against the disc 1012 and the second fixing bracket 1002 respectively. The end face of the stud 1011 faces the connecting seat 9.

[0050] like Figure 2 As shown, when the pneumatic pushing mechanism separates the second carrier shaft 6 from the positioning slot 1502 at the end of the carrier roller 1501 and creates a sufficient distance between the second carrier shaft 6 and the carrier roller 1501 (sufficient distance for the carrier roller 1501 to separate from the first carrier shaft 4 and not to connect with the second carrier shaft 6 after separation), the connecting seat 9 and the end face of the stud 1011 are just in contact, but the stud 1011 is not pushed.

[0051] When changing foils, simply move connector 9 to... Figure 2 The position shown is sufficient; when lubrication of the ball bearing 1601 is required, the first cylinder 8 needs to continue to extend, which drives the connecting seat 9 to push the stud 1011, causing the stud 1011, nut 1013, disc 1012, movable rod 1010 and piston 1009 to move together. The piston 1009 pushes the oil in the oil chamber, causing the oil to enter the inner cavity 1604 through the first one-way valve 1005 and the oil outlet pipe 1006, and then enter the groove 1603 through the connecting groove 1605 to achieve lubrication of the ball bearing 1601. At the same time, the disc 1012 pushes the spring 1014 during the above process, causing the spring 1014 to compress.

[0052] After the above lubrication, the first cylinder 8 retracts, causing the connecting seat 9 to separate from the stud 1011. Through the compression force of the spring 1014, the stud 1011, nut 1013, disc 1012, movable rod 1010 and piston 1009 move back to their original positions, causing the oil chamber to be sucked in. The oil in the oil box 1001 enters the oil chamber through the oil inlet pipe 1008 and the second one-way valve 1007 to replenish the oil and prepare for the next lubrication.

[0053] In practical implementation, the top of the oil box 1001 is provided with a breathable micropore that communicates with the outside air, so as to keep the oil box 1001 at atmospheric pressure at all times.

[0054] The stud 1011 and nut 1013 are made of self-locking threads, such as triangular threads.

[0055] The oil container 1001 has an oil filling port on one side of its top, and a sealing cap 1003 is installed on the oil filling port. Oil can be added to the oil container 1001 through the oil filling port.

[0056] This utility model is not limited to the above-described embodiments. Any changes in its shape or structure fall within the protection scope of this utility model. The protection scope of this utility model is defined by the appended claims. Those skilled in the art can make various changes or modifications to these embodiments without departing from the principles and essence of this utility model, but all such changes and modifications fall within the protection scope of this utility model.

Claims

1. A pneumatic rapid foil changing mechanism for a hot stamping machine, comprising a stage (1); characterized in that: The unwinding mechanism is installed on the platform (1); the unwinding mechanism includes a first carrier shaft (4); a second carrier shaft (6) is provided on one side of the first carrier shaft (4). The platform (1) is provided with a pneumatic pushing mechanism, which is rotatably connected to the second carrier shaft (6). The pneumatic pushing mechanism is used to drive the second carrier shaft (6) away from or close to the first carrier shaft (4). A material tray (11) is provided above the platform (1). The material tray (11) is located below the first carrier shaft (4) and the second carrier shaft (6), and a lifting mechanism is connected to the bottom of the material tray (11).

2. The pneumatic quick foil changing mechanism of a hot stamping machine as described in claim 1, characterized in that: It also includes a material carrier roller (1501), on which a foil (15) is wound; and a non-circular positioning slot (1502) is provided at the middle of both ends of the material carrier roller (1501).

3. The pneumatic quick foil changing mechanism of a hot stamping machine as described in claim 2, characterized in that: The first carrier shaft (4) is coaxially fixed with a first insert (402), and a first pressure plate (401) is fixedly sleeved on the first carrier shaft (4); the second carrier shaft (6) is coaxially fixed with a second insert (602), and a second pressure plate (601) is fixedly sleeved on the second carrier shaft (6); the first insert (402) and the second insert (602) are respectively connected to the positioning slots (1502) at both ends of the material roller (1501) with clearance fit, and the first pressure plate (401) and the second pressure plate (601) are respectively pressed to both ends of the material roller (1501).

4. The pneumatic rapid foil changing mechanism of a hot stamping machine as described in claim 1, characterized in that: The unwinding mechanism includes a first fixed frame (2) fixedly installed on the platform (1); the first carrier shaft (4) is rotatably installed on the first fixed frame (2), and a motor (3) is fixed on one side of the first fixed frame (2), and the output shaft of the motor (3) is connected to the first carrier shaft (4).

5. The pneumatic rapid foil changing mechanism of a hot stamping machine as described in claim 1, characterized in that: The lifting mechanism includes a second cylinder (12) fixedly installed on the bottom surface of the platform (1); the output shaft of the second cylinder (12) is fixed to the bottom of the material tray (11), the bottom of the material tray (11) is fixed with a vertical guide post (13), the platform (1) is fixed with a guide sleeve (14), and the guide post (13) and the guide sleeve (14) are slidably connected.

6. The pneumatic quick foil changing mechanism of a hot stamping machine as described in claim 1, characterized in that: The pneumatic pushing mechanism includes a slide (7), a movable frame (5) is fixed on the top of the slide (7), the movable frame (5) is rotatably connected to the second carrier shaft (6), the slide (7) is slidably connected to the slide rail (16) fixed to the platform (1), and a transverse first cylinder (8) is provided on both sides of the slide (7), and the first cylinder (8) is fixed to the platform (1). The output shaft of the first cylinder (8) is fixed with a connecting seat (9), and the connecting seat (9) is fixed to the slide (7).

7. The pneumatic rapid foil changing mechanism of a hot stamping machine as described in claim 6, characterized in that: The top of the slide rail (16) is provided with a plurality of evenly distributed grooves (1603), and each groove (1603) is provided with a ball (1601). The top of the slide rail (16) is fixed with a baffle (1602), and the baffle (1602) is provided with a plurality of holes, each of which is aligned with a plurality of grooves (1603). The ball (1601) passes through the hole and protrudes from above the baffle (1602). The diameter of the hole is smaller than the diameter of the ball (1601).

8. The pneumatic quick foil changing mechanism of a hot stamping machine as described in claim 7, characterized in that: It also includes a lubrication mechanism (10), which includes a second fixed frame (1002) fixedly installed on the platform (1); an oil injection component is fixedly installed on the second fixed frame (1002), and the oil inlet end and the oil outlet end of the oil injection component are respectively connected to an oil inlet pipe (1008) and an oil outlet pipe (1006). The oil inlet pipe (1008) is fixedly connected to the bottom of an oil box (1001) fixedly installed on one side of the platform (1). The oil inlet pipe (1008) is connected to an inner cavity (1604) opened in a slide rail (16). A connecting groove (1605) is also opened in the slide rail (16). The inner cavity (1604) is connected to a groove (1603) through the connecting groove (1605).

9. The pneumatic rapid foil changing mechanism of a hot stamping machine as described in claim 8, characterized in that: The oil injection assembly includes a cylinder (1004) fixed to a second mounting bracket (1002). A piston (1009) is fitted inside the cylinder (1004). One side of the piston (1009) and the inner wall of the cylinder (1004) form an oil chamber. A first check valve (1005) and a second check valve (1007) are installed at one end of the cylinder (1004). One end of the first check valve (1005) and one end of the second check valve (1007) are both connected to the oil chamber. The other ends of the first check valve (1005) and the second check valve (1007) are respectively connected to the oil outlet pipe (1006) and the oil inlet pipe (1008). The piston (1009) is fixed with a piston... A movable rod (1010) extends outside the cylinder (1004). A stud (1011) is fixed at one end of the movable rod (1010) away from the piston (1009). A disc (1012) is fitted on the stud (1011), and a nut (1013) is threaded onto the stud (1011). The end faces of the nut (1013) and the movable rod (1010) press against the two sides of the disc (1012), respectively. A spring (1014) is fitted on the cylinder (1004), and the two ends of the spring (1014) abut against the disc (1012) and the second fixing frame (1002), respectively. The end face of the stud (1011) faces the connecting seat (9).

10. The pneumatic rapid foil changing mechanism of a hot stamping machine as described in claim 8, characterized in that: The oil box (1001) has an oil filling port on one side of its top, and a sealing cap (1003) is installed on the oil filling port.

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