A synthetic leather embossing device

Abstract

This invention belongs to the field of synthetic leather embossing technology, specifically a synthetic leather embossing device, including a working roller and a spare roller. The working roller is located within the embossing station, and the spare roller is located above the working roller for standby. It also includes a sealing mechanism on the machine body, in which the spare roller is placed in a sealed bag for sealed storage; and a driving mechanism, which includes two mounting seats movably mounted on the machine body. By setting a sealed bag above the embossing station to vacuum-seal the spare roller, when changing the embossing roller, the working roller is moved away from the embossing station by rotating the rotating seat, while the spare roller is moved into the embossing station. This not only improves the storage effect of the spare roller but also shortens the operating stroke when changing the embossing roller, thus improving work efficiency.

Description

Technical Field

[0001] This invention belongs to the field of synthetic leather embossing, specifically a synthetic leather embossing device. Background Technology

[0002] Embossing of synthetic leather refers to pressing patterns onto synthetic leather to make it more attractive or to cover up imperfections. Some embossing machines use rotating embossing rollers to contact the synthetic leather and thus press the texture onto it.

[0003] Synthetic leather embossing rollers typically use silicone rollers. The storage conditions for silicone embossing rollers are stringent. For example, they should be kept clean during storage, and care should be taken to prevent the entry of dust, moisture, and other impurities. Dust removal equipment should be installed in the storage environment to reduce dust accumulation on the roller surface. Therefore, spare embossing rollers are usually stored in sealed plastic bags. When needed, the spare roller is removed from the plastic bag and installed on the embossing station of the embossing machine. Traditional sealed bags and other storage devices have a simple structure and are usually separate from the embossing machine. This results in a long travel distance between the storage location and the embossing station when changing rollers, leading to a longer operation time and reduced work efficiency.

[0004] Therefore, the present invention provides a synthetic leather embossing device. Summary of the Invention

[0005] In order to overcome the shortcomings of the prior art, at least one technical problem raised in the background art is solved.

[0006] The technical solution adopted by this invention to solve its technical problem is as follows: A synthetic leather embossing device according to this invention includes a machine body, wherein an embossing station for performing embossing operations is provided in the machine body, and two embossing rollers are installed on the machine body. Each embossing roller includes a working roller and a spare roller. The working roller is located within the embossing station, and the spare roller is located above the working roller for standby. The device also includes:

[0007] A sealing mechanism is provided on the machine body, the sealing mechanism including a sealing bag, the spare roller being placed inside the sealing bag for sealed storage; and

[0008] The drive mechanism includes two mounting seats movably mounted on the machine body. The two ends of the working roller shaft are respectively mounted on the two mounting seats. The mounting seats are used to drive the working roller to rotate. After the mounting seats move, they separate from the working roller.

[0009] Specifically, the sealed bag is preferably, but not limited to, a plastic vacuum bag. In the initial state, the spare roller is sealed and stored inside the sealed bag and is not in operation. The working roller is installed between two mounting seats. Starting the mounting seats to rotate will drive the working roller to rotate. When embossing synthetic leather, the synthetic leather is placed on the machine body and transported to the bottom of the working roller. The rotating working roller performs the embossing operation on the synthetic leather. When changing the embossing roller, the mounting seats are moved so that the two mounting seats are far apart. The working roller is then removed, the sealed bag is opened, the spare roller is taken out of the sealed bag, and finally the spare roller is installed on the mounting seat to continue working. This device shortens the operation stroke when changing the embossing roller and improves work efficiency.

[0010] Preferably, the sealing mechanism further includes:

[0011] A support plate is fixed to the machine body, the sealing bag is sleeved on the support plate, the sealing bag and the support plate form a cavity, and the bottom end of the sealing bag is provided with an opening;

[0012] A sealing element for sealing the bottom opening of the sealed bag;

[0013] A vacuum pump that evacuates a cavity; and

[0014] Two hooks are rotatably mounted on the support plate, and the two ends of the spare roller shaft rest on the two hooks respectively.

[0015] Specifically, the vacuum pump is installed on the machine body, or it can be installed on the support plate and located outside the sealed bag. The sealed bag is preferably, but not limited to, a vacuum bag, and the sealing element is preferably, but not limited to, a sealing strip. After the spare roller is placed on the hook, the bottom opening of the sealed bag is sealed by the sealing element. Then, the vacuum pump is started to evacuate the inside of the sealed bag, thereby vacuum-preserving the spare roller. This reduces the problem of the spare roller being easily damaged due to excessive contact with dust and moisture in the air, and improves the storage effect of the spare roller.

[0016] Preferably, the sealed bag has an internal bag-supporting mechanism, the bag-supporting mechanism comprising:

[0017] Two bag-supporting clamps are rotatably mounted on the support plate. Each bag-supporting clamp includes two rotatably connected support rods. When the bottom ends of the two support rods are opened, they are used to open the bottom opening of the sealed bag. The support of the bag-supporting clamp is located above the roller shaft of the spare roller. A return torsion spring is provided on the rotation shaft of the bag-supporting clamp.

[0018] A magnetic block fixed to the support bag clamp;

[0019] An electromagnet is installed on the support plate. When the electromagnet is energized, it repels the magnetic block of the same polarity. The repulsive force is used to push the bottom end of the bag clamp to open.

[0020] Specifically, the bag clamp preferably has, but is not limited to, an X-shaped clamp structure. The magnetic block is located in the upper half of the bag clamp and above the rotating shaft. In the initial state, the bottom ends of the bag clamps move closer together under the action of the return torsion spring so that the bottom opening of the sealed bag can be closed and sealed. After the sealed bag is evacuated, the sealed bag is in a contracted state. When changing the embossing roller, after opening the bottom opening of the sealed bag, the electromagnet is energized. After the electromagnet is energized, it becomes magnetic and repels the magnetic block, thereby pushing the support rod to rotate, causing the bottom end of the bag clamp to open and opening the bottom opening of the sealed bag so that the spare roller can be taken out of the sealed bag, which improves the smoothness of the operation of taking out the spare roller when changing the embossing roller.

[0021] Preferably, the sealing mechanism further includes a driven rod fixed to the hook. After the support rod opens, it pushes the driven rod to drive the hook to deflect, and the spare roller falls out of the deflected hook.

[0022] Specifically, when the spare roller is removed, the bag clamp opens, and the support rod in the bag clamp rotates and opens to contact the driven rod. By squeezing the driven rod, the hook rotates. After the hook rotates, the opening in the hook rotates to face downwards. Then, the spare roller can fall out of the hook and fall through the opening at the bottom of the opened sealed bag, thus realizing the function of automatically removing the spare roller when the sealed bag is opened.

[0023] Preferably, the drive mechanism further includes:

[0024] Two drive shafts are rotatably mounted on the machine body. One end of the mounting base is slidably mounted on the drive shaft. The end of the work roller is movably inserted into the other end of the mounting base. The two mounting bases are brought together to fix the work roller.

[0025] A lever for sliding the mounting base.

[0026] Specifically, the mounting base is cylindrical, with an annular groove on its outer wall. A lever is inserted into this groove, and when the lever moves axially along the mounting base, it slides on the drive shaft. The mounting base is located between the drive shaft and the work roller's shaft. After installing the work roller's shaft on both mounting bases, starting the drive shaft rotates the work roller to perform the embossing operation. When changing the embossing roller, the lever moves the two mounting bases away from each other, ensuring the distance between them is greater than the length of the work roller's shaft. The work roller can then be removed from the two mounting bases, making the disassembly and assembly of the work roller simple and quick.

[0027] Preferably, it further includes a replacement mechanism, the replacement mechanism comprising:

[0028] Rotate the rotating seat mounted on the machine body;

[0029] A first clamping assembly and a second clamping assembly are mounted on the rotating seat. Each of the first clamping assembly and the second clamping assembly includes two grippers. The first clamping assembly is used to clamp the spare roller, and the second clamping assembly is used to clamp the working roller. After the rotating seat rotates, the first clamping assembly transfers the spare roller to the embossing station.

[0030] Specifically, the working roller in the original embossing station is the old embossing roller, and the spare roller in the sealed bag is the new embossing roller. When replacing the embossing roller, the first clamping component clamps the spare roller falling from the sealed bag, and the second clamping component clamps and fixes the working roller. The two mounting seats are then moved away from each other, separating the mounting seats from the working roller. Then, the rotating seat is rotated, causing the working roller to leave the embossing station and the spare roller to move into the embossing station. After the spare roller moves, it is located between the two mounting seats. The two mounting seats are then moved closer together, so that the end of the spare roller shaft is inserted into the mounting seat. In this way, the operation of installing the spare roller into the embossing station is completed, realizing the function of simultaneously removing the old embossing roller and installing the new embossing roller. The replacement is quick and the replacement efficiency is improved.

[0031] Preferably, a reset torsion spring is provided on the rotation shaft of the gripper. The reset torsion spring is used to drive the gripping ends of the two grippers in the same group to open. The first gripping assembly is located below the bottom opening of the sealed bag. The first gripping assembly also includes two receiving plates respectively fixed to the two grippers. The receiving plates are used to receive the spare roller that slides down from the bottom opening of the sealed bag. The two receiving plates are staggered in an X shape. The spare roller then drives the two grippers to close by pressing the receiving plates downward.

[0032] Specifically, in the initial state, the clamping ends of the first clamping component and the second clamping component are both in an open state. The first clamping component is located directly below the bottom opening of the sealed bag. The spare roller slides down from the sealed bag and lands on the receiving plate, causing the bottom ends of the two receiving plates to close inward. The two receiving plates simultaneously cause the upper ends of the two grippers to close inward, thereby completing the operation of the grippers clamping the spare roller and realizing the function of automatically clamping the spare roller.

[0033] Preferably, the replacement mechanism further includes:

[0034] Two sets of gear assemblies, with two grippers in the same set rotating in opposite directions via the gear assemblies; and a chain belt, through which the two sets of gear assemblies are driven.

[0035] Specifically, the gear assembly includes two meshing gear components, which are respectively fixed to two grippers. When the two grippers in the first gripping assembly close together to hold the spare roller, the gear component in the first gripping assembly rotates and drives the gear component in the second gripping assembly to rotate via the chain belt. This causes the two grippers in the second gripping assembly to close, so that the second gripping assembly holds the work roller. This achieves the function of simultaneously holding and fixing the spare roller and the work roller before changing the embossing roller, so that the two embossing rollers can be moved after the rotating seat rotates.

[0036] Preferably, the replacement mechanism further includes:

[0037] A sliding plate mounted on the rotating base;

[0038] Rotary mounting on the slide plate for engaging the gear assembly;

[0039] A spring for pushing the slide plate closer to the gear assembly; and

[0040] A push ring fixed to the mounting base is used to push the slide plate away from the gear assembly after the two mounting bases are brought together. The slide plate is in a certain position. The push ring has a ramp on the side near the slide plate.

[0041] Specifically, after the two grippers close together and hold the embossing roller, a check pawl is set to prevent the gear assembly from rotating, thereby preventing the grippers from loosening and ensuring the stability of the embossing roller as it moves with the rotating seat.

[0042] After the rotating seat rotates, the spare roller is rotated from the top to the embossing station below, while the working roller is rotated from the bottom to the top. Then, the two mounting seats come together to clamp the spare roller. As the mounting seats approach the spare roller, the sliding plate moves through the push ring, causing the anti-return pawl mounted on the sliding plate to separate from the gear assembly. Then, the first and second clamping components automatically rotate and open under the action of the return torsion spring, thereby releasing the spare roller and the working roller. In this way, the automatic replacement of the embossing roller is completed. After the first clamping component opens, it does not contact the spare roller, which facilitates the installation of the mounting seat and the spare roller, and avoids the problem that continued contact between the first clamping component and the spare roller may affect the embossing operation of the spare roller. The stroke of each component in this replacement process is shorter, which improves the replacement efficiency, and the replacement process can be automated, which improves the degree of automation.

[0043] Preferably, the rotating base includes:

[0044] Rotate the turntable mounted on the machine body; and

[0045] An adjusting plate is slidably mounted on the turntable, and both the first clamping assembly and the second clamping assembly are mounted on the adjusting plate.

[0046] Specifically, after replacing the embossing roller, the adjustment plate is moved towards the turntable, so that the first and second clamping components are misaligned with the embossing roller. Then the turntable can be started to rotate and reset. After placing a new spare roller into the sealed bag, the next round of embossing roller replacement can be carried out. It can be reused repeatedly.

[0047] The beneficial effects of this invention are as follows:

[0048] 1. The synthetic leather embossing equipment of the present invention uses a sealed bag above the embossing station to vacuum seal and store spare rollers. When replacing the embossing roller, the spare roller is simply taken out of the sealed bag and placed on the embossing station. This not only improves the storage effect of the spare roller, but also shortens the operation stroke when replacing the embossing roller, thereby improving work efficiency.

[0049] 2. The synthetic leather embossing equipment of the present invention, by setting a bag-supporting mechanism inside the sealed bag, when the spare roller is taken out, the bag-supporting clamp opens the bottom opening of the sealed bag and drives the hook to rotate, so that the spare roller automatically falls from the bottom opening of the opened sealed bag, thereby realizing the function of automatically taking out the spare roller at the same time as opening the sealed bag.

[0050] 3. The synthetic leather embossing equipment of the present invention, by setting a first clamping component and a second clamping component on the rotating seat, after the spare roller falls from the sealed bag, it falls on the first clamping component and automatically drives the first clamping component and the second clamping component to close, realizing the function of automatic clamping and positioning of the spare roller and the working roller, so as to facilitate the separation of the working roller from the mounting seat and the removal of the working roller from the embossing station in a simple and quick manner.

[0051] 4. The synthetic leather embossing equipment of the present invention, by setting a rotating seat, after the rotating seat rotates, moves the working roller away from the embossing station and moves the spare roller into the embossing station at the same time. Furthermore, during the contact and engagement between the mounting seat and the spare roller, the clamping component automatically releases its clamping and positioning of the embossing roller. This facilitates the removal of the working roller from the second clamping component. After the first clamping component opens, it does not contact the spare roller and does not affect the embossing work of the spare roller. Therefore, the embossing work can be resumed immediately, shortening the downtime for replacement and further improving work efficiency. Attached Figure Description

[0052] The invention will now be further described with reference to the accompanying drawings.

[0053] Figure 1 This is a perspective view of Embodiment 1 of the present invention;

[0054] Figure 2 This is a 3D view of the sealing mechanism and the working roller;

[0055] Figure 3 This is a cross-sectional view of the sealed structure.

[0056] Figure 4 This is a 3D view of the replacement mechanism and the working roller;

[0057] Figure 5 This is an exploded view of the bag-supporting mechanism and the spare roller;

[0058] Figure 6 This is a half-sectional view of the drive mechanism and the working roller;

[0059] Figure 7 This is a perspective view of the first clamping component and the second clamping component in action;

[0060] Figure 8 This is an exploded view of the first clamping component and the anti-return pawl;

[0061] Figure 9 This is a schematic diagram of the sealing mechanism and the replacement mechanism. Detailed Implementation

[0062] To make the technical means, creative features, objectives and effects of this invention easier to understand, the invention will be further described below in conjunction with specific embodiments.

[0063] Example 1

[0064] like Figure 1-9 As shown in the figure, a synthetic leather embossing device according to an embodiment of the present invention includes a machine body 1, wherein an embossing station for performing embossing operations is provided in the machine body 1, and two embossing rollers are installed on the machine body 1. The embossing rollers include a working roller 100 and a spare roller 200. The working roller 100 is located in the embossing station, and the spare roller 200 is located above the working roller 100 for standby. The device also includes:

[0065] A sealing mechanism 2 is provided on the machine body 1, the sealing mechanism 2 including a sealing bag 21, the spare roller 200 is placed in the sealing bag 21 for sealed storage; and

[0066] The drive mechanism 3 includes two mounting seats 31 movably mounted on the machine body 1. The two ends of the roller shaft of the working roller 100 are respectively mounted on the two mounting seats 31. The mounting seats 31 are used to drive the working roller 100 to rotate. After the mounting seats 31 move, they separate from the working roller 100.

[0067] Specifically, the sealed bag 21 is preferably, but not limited to, a plastic vacuum bag. In the initial state, the spare roller 200 is sealed and stored in the sealed bag 21 and is not in operation. The working roller 100 is installed between two mounting seats 31. Starting the mounting seats 31 to rotate will drive the working roller 100 to rotate. When embossing synthetic leather, the synthetic leather is placed on the machine body 1 and transported to the bottom of the working roller 100. The rotating working roller 100 performs the embossing operation on the synthetic leather. When changing the embossing roller, the mounting seats 31 are moved so that the two mounting seats 31 are far apart. The working roller 100 is then removed, the sealed bag 21 is opened, the spare roller 200 is taken out of the sealed bag 21, and finally the spare roller 200 is installed on the mounting seat 31 to continue working. This device shortens the operation stroke when changing the embossing roller and improves work efficiency.

[0068] like Figure 2-3 As shown, the sealing mechanism 2 further includes:

[0069] A support plate 22 is fixed to the body 1, and a sealing bag 21 is sleeved on the support plate 22. The sealing bag 21 and the support plate 22 form a cavity, and the bottom end of the sealing bag 21 is provided with an opening.

[0070] A sealing element 23 that seals the bottom opening of the sealed bag 21;

[0071] A vacuum pump 24 for evacuating the cavity; and

[0072] Two hooks 25 are rotatably mounted on the support plate 22, and the two ends of the spare roller 200 are respectively placed on the two hooks 25.

[0073] Specifically, the vacuum pump 24 is installed on the machine body 1, or on the support plate 22 and located outside the sealing bag 21. The sealing bag 21 is preferably, but not limited to, a vacuum bag, and the sealing element 23 is preferably, but not limited to, a sealing strip. After the spare roller 200 is placed on the hook 25, the bottom opening of the sealing bag 21 is sealed by the sealing element 23. Then, the vacuum pump 24 is started to evacuate the inside of the sealing bag 21, thereby vacuum-preserving the spare roller 200. This reduces the problem of the spare roller 200 being easily damaged due to excessive contact with dust and moisture in the air, and improves the storage effect of the spare roller 200.

[0074] like Figure 3-5 As shown, the sealed bag 21 has a bag-supporting mechanism 4 inside, and the bag-supporting mechanism 4 includes:

[0075] Two bag-supporting clips 41 are rotatably mounted on the support plate 22. Each bag-supporting clip 41 includes two rotatably connected support rods. When the bottom ends of the two support rods are opened, they are used to open the bottom opening of the sealed bag 21. The support of the bag-supporting clip 41 is located above the roller shaft of the spare roller 200. A reset torsion spring is provided on the rotation shaft of the bag-supporting clip 41.

[0076] A magnetic block 42 is fixed to the support bag clamp 41;

[0077] An electromagnet 43 is provided on the support plate 22. When the electromagnet 43 is energized, it repels the magnetic block 42 of the same polarity. The repulsive force is used to push the bottom end of the bag clamp 41 to open.

[0078] Specifically, the bag support clamp 41 preferably has, but is not limited to, an X-shaped clamp structure. The magnetic block 42 is located in the upper half of the bag support clamp 41 and above the rotating shaft. In the initial state, the bottom ends of the bag support clamp 41 are brought together by the action of the reset torsion spring so that the bottom opening of the sealed bag 21 can be closed and sealed. After the sealed bag 21 is evacuated, the sealed bag 21 is in a contracted state. When changing the embossing roller, the sealing element 23 is moved to open the bottom opening of the sealed bag 21. The electromagnet 43 is energized. After being energized, the electromagnet 43 has magnetism and is repelled by the magnetic block 42, thereby pushing the support rod to rotate, so that the bottom end of the bag support clamp 41 opens and the bottom opening of the sealed bag 21 is opened so that the spare roller 200 can be taken out from the sealed bag 21, which improves the smoothness of the operation of taking out the spare roller 200 when changing the embossing roller.

[0079] like Figure 5 As shown, the sealing mechanism 2 also includes a driven rod 26 fixed to the hook 25. After the support rod opens, it pushes the driven rod 26 to drive the hook 25 to deflect, and the spare roller 200 falls out of the deflected hook 25.

[0080] Specifically, when the spare roller 200 is taken out, the bag clamp 41 opens. When the support rod in the bag clamp 41 rotates and opens, it contacts the driven rod 26. By squeezing the driven rod 26, the hook 25 rotates. After the hook 25 rotates, the opening in the hook 25 rotates to face downward. Then, the spare roller 200 can fall out of the hook 25 and fall through the bottom opening of the opened sealed bag 21, realizing the function of automatically taking out the spare roller 200 when the sealed bag 21 is opened.

[0081] like Figure 2-6 As shown, the drive mechanism 3 further includes:

[0082] Two drive shafts 32 are rotatably mounted on the machine body 1. One end of the mounting base 31 is slidably mounted on the drive shaft 32. The end of the working roller 100 is movably inserted into the other end of the mounting base 31. The working roller 100 is fixed after the two mounting bases 31 are brought together.

[0083] A lever 33 for sliding the mounting base 31.

[0084] Specifically, the mounting base 31 is cylindrical, and an annular groove is provided on the outer wall of the mounting base 31. The lever 33 is inserted into the annular groove. When the lever 33 is activated to move along the axial direction of the mounting base 31, the mounting base 31 can be driven to slide on the drive shaft 32. The mounting base 31 is located between the drive shaft 32 and the roller shaft of the work roller 100. After the roller shaft of the work roller 100 is installed on the two mounting bases 31, the drive shaft 32 is started to rotate, which can drive the work roller 100 to rotate for embossing operation. When changing the embossing roller, the lever 33 drives the two mounting bases 31 to move away from each other, so that the distance between the two mounting bases 31 is greater than the length of the roller shaft of the work roller 100. Then the work roller 100 can be removed from the two mounting bases 31. The disassembly and assembly of the work roller 100 is simple and quick.

[0085] like Figure 4-9 As shown, it also includes a replacement mechanism 5, which includes:

[0086] Rotary seat 51 mounted on the machine body 1 is rotated;

[0087] A first clamping assembly 52 and a second clamping assembly 53 are mounted on the rotating seat 51. Both the first clamping assembly 52 and the second clamping assembly 53 include two grippers. The first clamping assembly 52 is used to clamp the spare roller 200, and the second clamping assembly 53 is used to clamp the working roller 100. After the rotating seat 51 rotates, the first clamping assembly 52 transfers the spare roller 200 to the embossing station.

[0088] Specifically, the working roller 100 in the original embossing station is the old embossing roller, and the spare roller 200 in the sealed bag 21 is the new embossing roller. When replacing the embossing roller, the first clamping component 52 clamps the spare roller 200 that falls from the sealed bag 21, and the second clamping component 53 clamps and fixes the working roller 100. The two mounting seats 31 are then moved away from each other, so that the mounting seats 31 are separated from the working roller 100. Then, the rotating seat 51 is rotated, so that the working roller 100 leaves the embossing station and the spare roller 200 moves into the embossing station. After the spare roller 200 moves, it is located between the two mounting seats 31. The two mounting seats 31 are then moved closer together, so that the roller shaft end of the spare roller 200 is inserted into the mounting seat 31. In this way, the operation of installing the spare roller 200 on the embossing station is completed, realizing the function of simultaneously removing the old embossing roller and installing the new embossing roller. The replacement is quick and the replacement efficiency is improved.

[0089] like Figure 8 As shown, a reset torsion spring is provided on the rotation axis of the gripper. The reset torsion spring is used to drive the gripping ends of the two grippers in the same group to open. The first gripping assembly 52 is located below the bottom opening of the sealed bag 21. The first gripping assembly 52 also includes two receiving plates 521 respectively fixed to the two grippers. The receiving plates 521 are used to receive the spare roller 200 that slides down from the bottom opening of the sealed bag 21. The two receiving plates 521 are arranged in an X-shape and staggered. The spare roller 200 then drives the two grippers to close by pressing the receiving plates 521 downward.

[0090] Specifically, in the initial state, the clamping ends of the first clamping component 52 and the second clamping component 53 are both in an open state. The first clamping component 52 is located directly below the bottom opening of the sealed bag 21. The spare roller 200 slides down from the sealed bag 21 and falls onto the receiving plate 521, causing the bottom ends of the two receiving plates 521 to close inward. At the same time, the two receiving plates 521 cause the upper ends of the two grippers to close inward, thereby completing the operation of the grippers clamping the spare roller 200 and realizing the function of automatically clamping the spare roller 200.

[0091] like Figure 7-8 As shown, the replacement mechanism 5 further includes:

[0092] Two sets of gear assemblies 54 are respectively disposed on the first clamping assembly 52 and the second clamping assembly 53. The two jaws of the first clamping assembly 52 and the two jaws of the second clamping assembly 53 rotate in opposite directions via their respective gear assemblies 54.

[0093] The two sets of gear assemblies 54 are driven by the chain belt 55.

[0094] Specifically, the gear assembly 54 includes two meshing gear components, which are respectively fixed to two grippers. When the two grippers in the first gripping assembly 52 close together to hold the spare roller 200, the gear assembly 54 in the first gripping assembly 52 rotates and drives the gear assembly 54 in the second gripping assembly 53 to rotate via the chain belt 55. This, in turn, causes the two grippers in the second gripping assembly 53 to close together, so that the second gripping assembly 53 holds the working roller 100. This achieves the function of simultaneously holding and fixing the spare roller 200 and the working roller 100 before replacing the embossing roller. This facilitates the separation of the mounting base 31 from the working roller 100 and ensures that the rotating base 51 can drive the two embossing rollers to move after rotation.

[0095] like Figure 6-8 As shown, the replacement mechanism 5 further includes:

[0096] A sliding plate 56 is mounted on the rotating base 51.

[0097] A rotatable pawl 57 is mounted on the slide plate 56 to limit the unidirectional rotation of the gear assembly 54;

[0098] Spring 58 for pushing the slide plate 56 closer to the gear assembly 54; and

[0099] The push ring 59, fixed to the mounting base 31, pushes the slide plate 56 away from the gear assembly 54 after the two mounting bases 31 are brought together. The slide plate 56 is in a certain position. The push ring 59 has a ramp on the side near the slide plate 56.

[0100] Specifically, after the two grippers close together and hold the embossing roller, the gear assembly 54 is prevented from rotating by setting a backstop pawl 57, thereby preventing the grippers from loosening and ensuring the stability of the embossing roller as it moves with the rotating seat 51.

[0101] After the rotating seat 51 rotates, the spare roller 200 is rotated from above to the embossing station below, while the working roller 100 is rotated from below to above. Then, the two mounting seats 31 are moved closer together to clamp the spare roller 200 and install it in the embossing station. As the mounting seats 31 approach the spare roller 200, the sliding plate 56 is pushed to move by the push ring 59, causing the anti-return pawl 57 mounted on the sliding plate 56 to separate from the gear assembly 54. Then, the first clamping assembly 52 and the second clamping assembly 53 automatically rotate and open under the action of the return torsion spring, thereby releasing the spare roller 200. Using roller 200 and working roller 100, the automatic replacement of the embossing roller is completed. After the first clamping component 52 opens, it does not contact the spare roller 200, which facilitates the installation of the mounting base 31 and the spare roller 200. At the same time, it avoids the problem that continued contact between the first clamping component 52 and the spare roller 200 may affect the embossing operation of the spare roller 200. Therefore, the embossing work can be resumed immediately, shortening the downtime of replacement and further improving work efficiency. The stroke of each component in this replacement process is shorter, which improves the replacement efficiency. Moreover, the replacement process can be automated, which improves the degree of automation.

[0102] Example 2

[0103] like Figure 4 As shown in the comparative embodiment one, another embodiment of the present invention is as follows: the rotating base 51 includes:

[0104] Rotary turntable 511 mounted on the body 1; and

[0105] An adjusting plate 512 is slidably mounted on the turntable 511, and the first clamping assembly 52 and the second clamping assembly 53 are both mounted on the adjusting plate 512.

[0106] Specifically, after replacing the embossing roller, the adjustment plate 512 is moved towards the turntable 511, so that the first clamping component 52 and the second clamping component 53 are misaligned with the embossing roller. Then the turntable 511 can be started to rotate and reset. After the new spare roller 200 is placed in the sealed bag 21, the next round of embossing roller replacement work can be carried out. It can be used repeatedly.

[0107] Working principle: In the initial state, the spare roller 200 is sealed and stored in the sealed bag 21 and does not work; the working roller 100 is installed between the two mounting seats 31. Starting the mounting seats 31 to rotate will drive the working roller 100 to rotate; when embossing synthetic leather, the synthetic leather is placed on the machine body 1 and transported to the bottom of the working roller 100, and the embossing operation is performed on the synthetic leather by the rotating working roller 100.

[0108] When changing the embossing roller, move the sealing element 23 to open the bottom opening of the sealing bag 21, start the electromagnet 43 to be energized. After the electromagnet 43 is energized, it becomes magnetic and repulses the magnetic block 42, thereby pushing the support rod to rotate, causing the bottom end of the support bag clamp 41 to open and open the bottom opening of the sealing bag 21.

[0109] When the bag clamp 41 opens, it contacts the driven rod 26 and causes the hook 25 to rotate by squeezing the driven rod 26. After the hook 25 rotates, the opening in the hook 25 rotates to face downward. Then, the spare roller 200 can fall off the hook 25 and fall through the bottom opening of the opened sealed bag 21.

[0110] The spare roller 200 falls onto the receiving plate 521 and drives the bottom ends of the two receiving plates 521 to close inward. At the same time, the two receiving plates 521 drive the upper ends of the two grippers to close inward, and the first clamping component 52 automatically clamps the spare roller 200.

[0111] During the clamping process, the gear assembly 54 and chain belt 55 provided on it drive the gear assembly 54 in the second clamping assembly 53 to rotate, thereby driving the two jaws in the second clamping assembly 53 to close, so that the second clamping assembly 53 clamps the work roller 100.

[0112] Start the two mounting seats 31 to move away from each other, so that the mounting seats 31 are separated from the working roller 100. Then rotate the rotating seat 51. After the rotating seat 51 rotates, the spare roller 200 is rotated from the top to the lower embossing station. At the same time, the working roller 100 is rotated from the bottom to the top. Then, start the two mounting seats 31 to move closer to each other, clamp the spare roller 200, and install the spare roller 200 on the embossing station.

[0113] As the mounting base 31 approaches the spare roller 200, the slide plate 56 also approaches and is pushed by the push ring 59 to move the slide plate 56, causing the anti-return pawl 57 mounted on the slide plate 56 to separate from the gear assembly 54. Then, the first clamping assembly 52 and the second clamping assembly 53 automatically rotate and open under the action of the reset torsion spring, thereby releasing the spare roller 200 and the working roller 100. The working roller 100 is removed from the opened second clamping assembly 53 by means of a robotic arm or other means. In this way, the automatic replacement of the embossing roller is completed.

[0114] After replacing the embossing roller, start the adjusting plate 512 to move towards the turntable 511, so that the first clamping component 52 and the second clamping component 53 are misaligned with the embossing roller. Then, start the turntable 511 to rotate and reset. After putting a new spare roller 200 into the sealed bag 21, the next round of embossing roller replacement work can be carried out. It can be used repeatedly.

[0115] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the present invention as claimed. The scope of protection of the present invention is defined by the appended claims and their equivalents.

Claims

1. A synthetic leather embossing device, comprising a machine body (1), wherein the machine body (1) is provided with an embossing station for performing embossing operations, characterized in that: The machine body (1) is equipped with two embossing rollers, each comprising a working roller (100) and a spare roller (200). The working roller (100) is located within the embossing station, and the spare roller (200) is located above the working roller (100) for standby. The machine also includes: A sealing mechanism (2) is provided on the machine body (1), the sealing mechanism (2) including a sealing bag (21), the spare roller (200) is placed in the sealing bag (21) for sealed storage; and The drive mechanism (3) includes two mounting seats (31) movably mounted on the machine body (1). The two ends of the roller shaft of the working roller (100) are respectively mounted on the two mounting seats (31). The mounting seats (31) are used to drive the working roller (100) to rotate. After the mounting seats (31) move, they separate from the working roller (100). The sealing mechanism (2) further includes: A support plate (22) is fixed to the body (1), and a sealing bag (21) is fitted on the support plate (22). A cavity is formed between the sealing bag (21) and the support plate (22), and the bottom end of the sealing bag (21) is provided with an opening. A sealing element (23) for sealing the bottom opening of the sealed bag (21); A vacuum pump (24) for evacuating the cavity; and Two hooks (25) are rotatably mounted on the support plate (22), and the two ends of the spare roller (200) are respectively placed on the two hooks (25); The sealed bag (21) is provided with a bag-supporting mechanism (4) inside, the bag-supporting mechanism (4) includes: Two bag-supporting clips (41) are rotatably mounted on the support plate (22). Each bag-supporting clip (41) includes two rotatably connected support rods. The bottom ends of the two support rods are opened to open the bottom opening of the sealed bag (21). The support of the bag-supporting clip (41) is located above the roller shaft of the spare roller (200). A reset torsion spring is provided on the rotating shaft of the bag-supporting clip (41). A magnetic block (42) is fixed to the support bag clamp (41); An electromagnet (43) is provided on the support plate (22). When the electromagnet (43) is energized, it repels the magnetic block (42) of the same polarity. The repulsive force is used to push the bottom end of the support bag clamp (41) to open.

2. The synthetic leather embossing equipment according to claim 1, characterized in that: The sealing mechanism (2) also includes a driven rod (26) fixed to the hook (25). After the support rod opens, the hook (25) is deflected by pushing the driven rod (26), and the spare roller (200) falls out of the deflected hook (25).

3. The synthetic leather embossing equipment according to claim 2, characterized in that: The drive mechanism (3) further includes: Two drive shafts (32) are rotatably mounted on the machine body (1). One end of the mounting base (31) is slidably mounted on the drive shaft (32). The end of the work roller (100) is movably inserted into the other end of the mounting base (31). The two mounting bases (31) are brought together to fix the work roller (100). A lever (33) for sliding the mounting base (31).

4. The synthetic leather embossing equipment according to claim 2, characterized in that: It also includes a replacement mechanism (5), which includes: Rotate the rotating seat (51) mounted on the machine body (1); A first clamping assembly (52) and a second clamping assembly (53) are installed on the rotating seat (51). Both the first clamping assembly (52) and the second clamping assembly (53) include two grippers. The first clamping assembly (52) is used to clamp the spare roller (200), and the second clamping assembly (53) is used to clamp the working roller (100). After the rotating seat (51) rotates, the first clamping assembly (52) transfers the spare roller (200) to the embossing station.

5. The synthetic leather embossing equipment according to claim 4, characterized in that: A reset torsion spring is provided on the rotation shaft of the gripper. The reset torsion spring is used to drive the gripping ends of the two grippers in the same group to open. The first gripping assembly (52) is located below the bottom opening of the sealed bag (21). The first gripping assembly (52) also includes two receiving plates (521) respectively fixed on the two grippers. The receiving plates (521) are used to receive the spare roller (200) that slides down from the bottom opening of the sealed bag (21). The two receiving plates (521) are staggered in an X shape. The spare roller (200) then drives the two grippers to close by pressing the receiving plates (521) downward.

6. The synthetic leather embossing equipment according to claim 5, characterized in that: The replacement mechanism (5) also includes: Two sets of gear assemblies (54) are respectively disposed on the first clamping assembly (52) and the second clamping assembly (53). The two jaws of the first clamping assembly (52) and the two jaws of the second clamping assembly (53) rotate in opposite directions through their respective gear assemblies (54); and The two sets of gear assemblies (54) are driven by the chain (55).

7. The synthetic leather embossing equipment according to claim 6, characterized in that: The replacement mechanism (5) also includes: A sliding plate (56) is mounted on the rotating base (51); A rotatable pawl (57) is mounted on the slide plate (56) to limit the unidirectional rotation of the gear assembly (54). A spring (58) for pushing the slide plate (56) closer to the gear assembly (54); and A push ring (59) is fixed to the mounting base (31). After the two mounting bases (31) come close to each other, the push ring (59) pushes the slide plate (56) away from the gear assembly (54). The slide plate (56) is shaped like a slant. The push ring (59) has a ramp on the side near the slide plate (56).

8. The synthetic leather embossing equipment according to claim 7, characterized in that: The rotating base (51) includes: Rotate the turntable (511) mounted on the body (1); and An adjustment plate (512) is slidably mounted on the turntable (511), and the first clamping assembly (52) and the second clamping assembly (53) are both mounted on the adjustment plate (512).

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