Sheet pickup device of die-cutting machine

Abstract

The utility model provides a sheet stock pickup device of a die-cutting machine, which comprises a transmission mechanism and a pickup assembly, the transmission mechanism comprises a driving assembly, a first transmission assembly and a second transmission assembly, and at least two-stage transmission is realized through the matching of the first transmission assembly and the second transmission assembly. The first transmission assembly comprises a first driving end and a first driven end which are in transmission connection, and the first driving end is in transmission connection with the output end of the driving assembly; the second transmission assembly comprises a second driving end and a second driven end which are in transmission connection with each other, the second driving end is in transmission connection with the first driven end, and the second driven end is in transmission connection with the end of the picking assembly so as to link the picking assembly to reciprocate in the picking direction. At least two stages of transmission structures are arranged, the buffering effect is achieved through step-by-step transmission in the power transmission process, compared with a first-stage transmission structure, the overall structural stability is better, and the situation that parts are abraded or even damaged due to the fact that loads are too large can be avoided.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of die cutting machine, especially relates to a sheet material pickup device of die cutting machine. BACKGROUND

[0002] The die cutting machine is a kind of equipment for carrying out die cutting processing to various sheet materials, and is widely applied in packaging, printing, electronics and other industries.The die cutting machine places the sheet material to be processed placed on the platform between the die through the relative movement of the pressing plate and the platform, and utilizes the shape and pressure of the die to carry out cutting, indentation, slotting and other processing operations on the sheet material, so as to process the sheet material into the required shape and size.The die cutting machine is divided into flat-pressing flat die cutting machine, round-pressing flat die cutting machine, round-pressing round die cutting machine and the like according to the structural type.

[0003] The main components of the die cutting machine include transmission device, conveying device, die cutting device and control system.The suction cup or other pickup sheet material structure of the conveying device moves linearly under the drive of the transmission device to convey or transfer the picked sheet material.

[0004] The transmission mechanism of the common die cutting machine in the prior art realizes linear reciprocating movement through the cooperation of cam, connecting rod or other driven parts, specifically, the connecting rod is driven to move linearly along the axial direction by the rotation of the cam, thereby driving the pickup assembly to move synchronously with the connecting rod.However, the existing cam connecting rod structure only undergoes one-stage transmission, and the structural stability is poor, cannot bear large load, and when the cam connecting rod structure bears excessive load, vibration is easily transmitted to the pickup assembly, causing the pickup assembly to shake, and the die cutting is not complete, and even the parts are damaged due to serious wear between the parts. SUMMARY

[0005] The utility model aims at solving the problems that the cam connecting rod structure of the die cutting machine in the prior art only undergoes one-stage transmission, the structural stability is poor, cannot bear large load, and when the cam connecting rod structure bears excessive load, vibration is easily transmitted to the pickup assembly, causing the pickup assembly to shake, the die cutting is not complete, and even the parts are damaged due to serious wear between the parts.

[0006] To solve the above technical problems, the embodiment of the utility model discloses a sheet material pickup device of die cutting machine, which is arranged on the rack of the die cutting machine, and comprises a transmission mechanism and a pickup assembly.The output end of the transmission mechanism is in transmission connection with the pickup assembly and can drive the pickup assembly to move along the pickup direction of the sheet material;wherein the transmission mechanism comprises a driving assembly, a first transmission assembly and a second transmission assembly, and can be gradually transmitted through the cooperation of the first transmission assembly and the second transmission assembly, and finally drive the pickup assembly to reciprocate along the pickup direction of the sheet material at a low and stable speed.

[0007] Specifically, the driving assembly is fixedly arranged on the rack; the first transmission assembly comprises a first driving end and a first driven end which are in transmission connection with each other, the first driving end is in transmission connection with the output end of the driving assembly; the second transmission assembly comprises a second driving end and a second driven end which are in transmission connection with each other, the second driving end is in transmission connection with the first driven end, and the second driven end is in transmission connection with the end portion of the pickup assembly, so as to drive the pickup assembly to reciprocate along the pickup direction.

[0008] By the above technical scheme, the first transmission assembly realizes the first-stage transmission through the transmission between the first driving end and the first driven end, absorbs the vibration and impact in the process, and then realizes the second-stage transmission through the transmission from the second driving end to the second driven end in the second transmission assembly. In the case that the rotation speed of the output of the driving assembly is constant, the power is transmitted from the output end of the driving assembly to the first driving end, the first driven end, the second driving end and the second driven end in turn, the vibration and impact can be absorbed by each transmission assembly (the first transmission assembly and the second transmission assembly), the structural reliability and stability are improved, the vibration is avoided from being transmitted to the pickup assembly when the load is large, the pickup assembly is prevented from shaking, the problems of incomplete die cutting, even part abrasion or damage are avoided. The above arrangement can transmit stable and low speed to the pickup assembly, so that the pickup assembly reciprocates along the pickup direction of the sheet material to pick up and transfer the sheet material.

[0009] According to another specific embodiment of the utility model, the embodiment of the utility model discloses a sheet material pickup device of die cutting machine, and the transmission mechanism further comprises an intermediate transmission assembly, the intermediate transmission assembly comprises an intermediate driving end and an intermediate driven end which are in transmission connection with each other, the intermediate driving end is in transmission connection with the first driven end, and the intermediate driven end is in transmission connection with the second driving end.

[0010] By the above technical scheme, the intermediate driving end and the first driven end are synchronously transmitted, the intermediate driven end and the second driving end are synchronously transmitted, the torque output by the driving assembly is transmitted to the second transmission assembly through the intermediate transmission assembly after vibration damping transmission by the first transmission assembly, the intermediate transmission assembly can absorb the vibration and impact in advance before the power is transmitted to the second transmission assembly, the power transmitted to the second transmission assembly is more stable, the whole transmission mechanism is equivalent to three-stage transmission, each stage of transmission can absorb the vibration and impact, so as to further improve the overall structural reliability and stability, further avoid the vibration from being transmitted to the pickup assembly when the load is large, make the pickup assembly shake, and the problems of incomplete die cutting, even part abrasion or damage.

[0011] The utility model provides a sheet material pickup device of die -cutting machine, including transmission mechanism and pickup subassembly, transmission mechanism's output and pickup subassembly transmission connection, can drive pickup subassembly moves along the pickup direction of sheet material, wherein, transmission mechanism includes the drive assembly, first transmission subassembly and second transmission subassembly that connect in proper order, through setting at least two stage transmission structure, can absorb vibration and impact through each transmission subassembly in power transmission process, compared with one -stage transmission structure, the overall structure reliability and stability are better, can avoid the situation that the excessive load occurs part abrasion even damage. The utility model discloses can transfer stable and lower speed to pickup subassembly, so that pickup subassembly reciprocating movement along the pickup direction of sheet material carries out pickup, shifts sheet material's operation. BRIEF DESCRIPTION OF DRAWINGS

[0012] Figure 1 It is the overall structure schematic diagram of sheet material pickup device of die -cutting machine for the utility model embodiment 1 provides;

[0013] Figure 2 It is the partial structure schematic diagram of sheet material pickup device of die -cutting machine for the utility model embodiment 1 provides, including drive assembly, first transmission subassembly and intermediate transmission subassembly;

[0014] Figure 3 It is another partial structure schematic diagram of sheet material pickup device of die -cutting machine for the utility model embodiment 1 provides, including intermediate transmission subassembly and second transmission subassembly;

[0015] Figure 4 It is the structure schematic diagram of pickup subassembly, guide subassembly and stroke sensing subassembly of sheet material pickup device of die -cutting machine for the utility model embodiment 3 provides.

[0016] BRIEF DESCRIPTION OF DRAWINGS

[0017] 1, rack;

[0018] 10, support plate;

[0019] 2, sheet material pickup device;

[0020] 20, transmission mechanism; 201, drive assembly; 2011, motor; 2012, speed reducer; 202, first transmission subassembly; 2021, first driving end; 2022, first driven end; 2023, first transmission part; 2024, first transmission shaft; 203, second transmission subassembly; 2031, second driving end; 2032, second driven end; 2033, second transmission part; 2034, second transmission shaft; 2035, second tension pulley; 204, intermediate transmission subassembly; 2041, intermediate driving end; 2042, intermediate driven end; 2043, intermediate transmission part;

[0021] 21. Pickup component; 211. Pickup bracket; 212. Suction cup;

[0022] 22. Guiding component; 221. Moving part; 2211. Connecting part; 222. Guiding part;

[0023] 23. Travel sensing component; 231. Sensor; 232. Transmitter;

[0024] X: Picking direction; Y: Extension direction. Detailed Implementation

[0025] Die-cutting machines, also known as die-cutting machines, cutting machines, or CNC punching machines, are essential equipment in printing and packaging processing. They are mainly used for die-cutting, creasing, hot stamping, laminating, and automatic waste removal of sheet materials. Die-cutting blades, steel blades, metal molds, and steel wire (or templates carved from steel plates) apply pressure to the surface of the sheet material to form the desired shape. Before processing, the sheet material needs to be transported to the corresponding processing station of the die-cutting assembly via a sheet material pick-up device. After processing, the sheet material also needs to be transported to other stations for packaging or subsequent processing via the sheet material pick-up device.

[0026] In the existing technology, the sheet picking device of the die-cutting machine achieves its reciprocating movement in the picking direction through the transmission of the cam mechanism. However, it only goes through one stage of transmission, resulting in poor structural stability. When the cam linkage structure bears an excessive load, the vibration is easily transmitted to the picking component, causing the picking component to shake. This can easily lead to incomplete die-cutting, or even damage to the parts due to severe wear between the parts.

[0027] To address the aforementioned problems, this utility model provides a sheet material picking device for a die-cutting machine. The device incorporates multi-stage transmission in the transmission mechanism, absorbing vibration and impact through various transmission components. This improves structural reliability and stability, preventing vibration from being transmitted to the picking components under heavy loads, thus avoiding incomplete die-cutting or even wear and damage to parts.

[0028] To make the objectives, technical solutions, and advantages of this utility model clearer, the embodiments of this utility model will be described in further detail below with reference to the accompanying drawings.

[0029] Example 1

[0030] This utility model provides a sheet material picking device for a die-cutting machine, such as... Figure 1 , Figure 2 and Figure 3As shown, the sheet material picking device 2 is arranged on the frame 1 of the die cutting machine, and includes a transmission mechanism 20 and a picking assembly 21. The transmission mechanism 20 is the main part of the sheet material picking device, and is mainly used for deceleration and step-by-step power transmission. The power can be transmitted step by step to reduce vibration and impact, prevent vibration from being transmitted to the picking assembly 21, avoid shaking of the picking assembly 21, enhance the structural stability and reliability, and finally transmitted to the picking assembly 21 through the output end of the transmission mechanism 20, so that the transmission mechanism 20 can drive the picking assembly 21 to move at a low speed and stably along the picking direction of the sheet material (arrow X direction in the figure, the picking direction will be described below, and will not be described below) Figure 1

[0031] The transmission mechanism 20 includes a driving assembly 201, a first transmission assembly 202, an intermediate transmission assembly 204 and a second transmission assembly 203 which are sequentially connected in transmission. The power output by the driving assembly 201 can be transmitted step by step through the transmission cooperation between the first transmission assembly 202, the intermediate transmission assembly 204 and the second transmission assembly 203. Each transmission assembly (the first transmission assembly 202, the intermediate transmission assembly 204 and the second transmission assembly 203) can absorb vibration and impact during power transmission, thereby improving the overall structural reliability and stability of the sheet material picking device 2, avoiding vibration transmission to the picking assembly 21 when the load is large, and preventing the picking assembly 21 from being incompletely die cut, even parts from being worn or damaged. Finally, the picking assembly 21 is driven to reciprocate at a low and stable speed along the picking direction of the sheet material, so that the picking assembly 21 picks and transfers the sheet material.

[0032] It should be noted that the sheet material can be paper sheet material, plastic, adhesive, double-sided tape and other similar processed materials as described above. The material, purpose, shape, size and quantity of the sheet material are not limited in the utility model, and those skilled in the art can make reasonable selection according to the needs. The picking direction of the sheet material is the conveying direction of the processed sheet material, which is usually a horizontal straight line, and of course, it can also be a direction inclined at a certain angle to the horizontal line.

[0033] The driving assembly 201 is the part of the sheet material picking device that provides power. However, when the driving assembly 201 includes a motor 2011, the rotation speed of the output end of the motor 2011 is usually high, which cannot be directly transmitted to the picking assembly 21. It is necessary to set a speed reduction structure between the motor 2011 and the picking assembly 21 to reduce the speed, so as to facilitate stable picking and transmission of the sheet material. In order to achieve the purpose of speed reduction, such as Figure 2 ​As shown, the driving assembly 201 is fixedly arranged on the rack 1, and includes a motor 2011 and a speed reducer 2012 fixed on the rack 1. The output end of the motor 2011 is in transmission connection with the input end of the speed reducer 2012. The output end of the speed reducer 2012 is coaxially arranged with the first driving end 2021 (first driving gear) of the first transmission assembly 202. The speed reducer 2012 pre-decelerates the rotation speed output by the motor 2011 and then transmits the rotation speed to the subsequent other transmission assemblies. In the case that the rotation speed output by the motor 2011 is constant, the cooperation transmission between the subsequent transmission assemblies (mainly the first transmission assembly 202, the intermediate transmission assembly 204 and the second transmission assembly 203) is utilized to realize step-by-step transmission, so that the pickup assembly 21 moves at a lower and stable speed (i.e., the sheet material is picked up).

[0034] It should be noted that, in addition to the speed reduction by the speed reducer 2012, the transmission ratios of the multiple transmission assemblies can be set to further reduce the speed on the basis of the speed reduction by the speed reducer 2012, so that the pickup assembly 21 runs at a lower speed. For example, for the die cutting of thin paper, a slower paper conveying speed can be required to ensure the die cutting accuracy. Those skilled in the art can reasonably set the transmission stages and transmission ratios of the multiple-stage transmission assemblies according to actual needs, so as to further convert the high-speed rotation of the motor 2011 into a low-speed movement meeting the requirements, so as to stabilize the paper conveying. In addition, each stage of transmission in the multiple-stage transmission can buffer and absorb vibration and impact, so as to improve the overall structural reliability and stability, avoid vibration transmission to the pickup assembly 21 when the load is large, and prevent the pickup assembly 21 from being incompletely die cut, even damaged or worn.

[0035] The first transmission assembly 202 is directly in transmission connection with the driving assembly 201, and is used to buffer and damp the torque output by the output end of the speed reducer 2012. The intermediate transmission assembly 204 is directly in transmission connection with the first transmission assembly 202 and the second transmission assembly 203, and is used to buffer and damp and transmit the power of the first transmission assembly 202 to the second transmission assembly 203. The second transmission assembly 203 is directly in transmission connection with the pickup assembly 21, and is used to further buffer and damp and transmit the power to the pickup assembly 21. Figure 2 and Figure 3As shown, the first transmission assembly 202 includes a first driving end 2021 and a first driven end 2022 in driving connection with each other, the intermediate transmission assembly 204 includes an intermediate driving end 2041 and an intermediate driven end 2042 in driving connection with each other, the second transmission assembly 203 includes a second driving end 2031 and a second driven end 2032 in driving connection with each other, the first driving end 2021 is in driving connection with the output end of the speed reducer 2012, the intermediate driving end 2041 is in driving connection with the first driven end 2022, the intermediate driven end 2042 is in driving connection with the second driving end 2031, and the second driven end 2032 is in driving connection with the end of the pickup assembly 21. In this arrangement, the power transmission path of the motor 2011 is sequentially through the speed reducer 2012, the first driving end 2021, the first driven end 2022, the intermediate driving end 2041, the intermediate driven end 2042, the second driving end 2031, and the second driven end 2032 to the pickup assembly 21. During power transmission, the speed reduction, vibration and impact are gradually absorbed by each transmission component, and finally the pickup assembly 21 can be linked to move back and forth along the pickup direction of the sheet material at a low speed and stably.

[0036] It should be noted that the first transmission assembly 202, the intermediate transmission assembly 204 and the second transmission assembly 203 are the main damping mechanisms. When the transmission ratio of the first transmission assembly 202, the intermediate transmission assembly 204 and the second transmission assembly 203 is greater than 1, each transmission assembly can also achieve further speed reduction, so that the speed transmitted to the pickup assembly 21 is more stable, and a greater transmission ratio and more precise speed adjustment can be achieved compared with a single-stage speed reduction by the speed reducer 2012.

[0037] With the above arrangement, the first transmission assembly 202 performs first-stage transmission through the driving between the first driving end 2021 and the first driven end 2022. When the transmission ratio of the first transmission assembly 202 is 1, the first transmission assembly 202 plays a role in dispersing load, reducing vibration and impact. When the transmission ratio of the first transmission assembly 202 is greater than 1, the first transmission assembly 202 also plays a role in speed reduction.

[0038] The intermediate driving end 2041 is in synchronous driving connection with the first driven end 2022, and the intermediate driven end 2042 is in synchronous driving connection with the second driving end 2031. When the transmission ratio of the intermediate transmission assembly 204 is 1, the intermediate transmission assembly 204 plays a role in further dispersing load, reducing vibration and impact. When the transmission ratio of the intermediate transmission assembly 204 is greater than 1, the intermediate transmission assembly 204 also plays a role in speed reduction.

[0039] The second transmission assembly 203 further disperses load, reduces vibration and impact through the driving between the second driving end 2031 and the second driven end 2032.

[0040] That is, through the above arrangement, the power is transmitted from the output end of the decelerator 2012 to the first driving end 2021, the first driven end 2022, the intermediate driving end 2041, the intermediate driven end 2042, the second driving end 2031, and the second driven end 2032 in sequence, and is transmitted in sequence with damping, so as to disperse the load, so that the second driven end 2032 can reciprocate the picking assembly 21 along the picking direction of the sheet material at a lower and stable speed. The above embodiment can also gradually amplify the torque of the motor 2011 to overcome larger loads, so that the finally output torque meets the requirements of die cutting different materials and different processes, ensures the smooth progress of the die cutting process, and avoids the situation of incomplete die cutting or part damage. Therefore, the first transmission assembly 202, the intermediate transmission assembly 204, and the second transmission assembly 203 correspond to multiple buffering links, which can effectively absorb and weaken the vibration and impact from the motor 2011, make the transmission process more stable, and also reduce the impact and vibration of each transmission assembly during operation, thereby reducing the friction and wear between parts.

[0041] It should be noted that the first transmission assembly 202 and the second transmission assembly 203 can be a cam mechanism, a worm gear transmission mechanism, a chain transmission mechanism, a gear transmission mechanism, a belt transmission mechanism, etc., as long as it can absorb and weaken the vibration and impact, and make the transmission process more stable.

[0042] It should be further noted that the intermediate transmission assembly 204 can be a connecting rod structure, a chain transmission mechanism, a gear transmission mechanism, a belt transmission mechanism, etc., as long as it can absorb and weaken the vibration and impact, and make the transmission process more stable. When the intermediate transmission assembly 204 is any one of the chain transmission mechanism, the belt transmission mechanism, and the gear transmission mechanism, the intermediate driving end 2041 and the intermediate driven end 2042 are both gears, and they can be connected to each other through a chain or a belt, or can be directly connected through gear meshing.

[0043] Further, it needs to be explained that the second transmission assembly 203 and the intermediate transmission assembly 204 can be arranged at both ends of the extension direction of the pickup assembly 21 respectively, or can be arranged at one end of the extension direction of the pickup assembly 21, as long as the second driven end 2032 is in transmission connection with the end of the pickup assembly 21 to drive the pickup assembly 21 to move reciprocatingly along the pickup direction of the sheet material. The utility model preferably arranges the second transmission assembly 203 and the intermediate transmission assembly 204 at both ends of the extension direction of the pickup assembly 21 respectively, so that both ends of the pickup assembly 21 can be driven, and the load is uniformly dispersed to the second transmission assembly 203 and the intermediate transmission assembly 204 at both ends of the pickup assembly 21. The connection mode between the second transmission assembly 203 and the intermediate transmission assembly 204 is described below, and will not be described here.

[0044] In one of the specific embodiments of the utility model, as shown in Figure 1 , Figure 2 and Figure 3 , the first transmission assembly 202 further comprises a first transmission shaft 2024 perpendicular to the pickup direction of the sheet material in the extension direction (the arrow Y direction in Figure 1 , Figure 2 , the first transmission shaft 2024 is mainly used for synchronously transmitting the power of the first driven end 2022 to the intermediate transmission assembly 204 arranged at both ends of the pickup assembly 21. The specific arrangement mode of the first transmission shaft 2024 is that the intermediate driving end 2041 is in transmission connection with the corresponding end of the first transmission shaft 2024, and the first transmission shaft 2024 is arranged between the first driven end 2022 and the intermediate driving end 2041, that is, the first driven end 2022 is in transmission connection with the intermediate driving end 2041 through the first transmission shaft 2024. In this arrangement mode, the power is transmitted to the intermediate driving end 2041 through the first driven end 2022 and the first transmission shaft 2024 in turn, the first transmission shaft 2024 plays a role in synchronous transmission, and can absorb vibration and impact.

[0045] When the pickup assembly 21 is arranged with the second transmission assembly 203 and the intermediate transmission assembly 204 at both ends of the extension direction (parallel to the extension direction of the first transmission shaft 2024) respectively, the specific connection relationship is that the second driving end 2031 of each second transmission assembly 203 is in transmission connection with the corresponding intermediate driven end 2042, and each intermediate driving end 2041 is in transmission connection with the corresponding end of the first transmission shaft 2024. This arrangement mode makes both ends of the pickup assembly 21 be driven, and the load is uniformly dispersed to the second transmission assembly 203 and the intermediate transmission assembly 204 at both ends of the pickup assembly 21, so that the movement process of the pickup assembly 21 is more stable.

[0046] In one of the specific embodiments of the present application, as shown in Figure 1 , Figure 2 and Figure 3 , the rack 1 comprises two support plates 10, which are mainly used for supporting each transmission component or for connecting each transmission component and the pickup assembly 21 together. The two support plates 10 are respectively arranged on both sides of the length direction of the pickup assembly 21 (i.e. the extension direction of the first transmission shaft 2024), and extend parallel to the pickup direction of the sheet material. The two ends of the first transmission shaft 2024 are respectively supported on the two support plates 10, and the specific supporting mode can be clamping, lapping, penetrating, etc. In the present embodiment, the supporting mode is preferably that the two ends of the first transmission shaft 2024 respectively penetrate the through holes of the support plates 10, which play a role of fixed support and limiting for the first transmission shaft 2024, avoiding the position deviation of the first transmission shaft 2024 in the pickup direction of the sheet material, so as to improve the structural stability.

[0047] Further, as shown in Figure 2 , when the first transmission assembly 202 is a gear transmission structure, the first driving end 2021 in the first transmission assembly 202 can be a first driving gear, and the first driven end 2022 can include a first driven gear and a first transmission part 2023. The specific connection relationship among them is that the first driving gear and the output end of the speed reducer 2012 (the speed reducer 2012 can be arranged between the two support plates 10) are coaxially arranged, the first driven gear is sleeved on the first transmission shaft 2024, and can also be arranged between the two support plates 10, and the two ends of the first transmission part 2023 in its length direction are respectively in transmission connection with the first driving gear and the first driven gear. Thus, the power of the first driving gear can be transmitted to the first driven gear through the first transmission part 2023, and each component (the first driving gear, the first transmission part 2023 and the first driven gear) can absorb vibration and impact during the power transmission process, thereby improving the structural reliability and stability. When the transmission ratio between the first driving gear and the first driven gear is greater than 1, further speed reduction is realized on the basis of the speed reduction of the speed reducer 2012, and the power is then synchronously transmitted from the first driven gear to the two ends of the first transmission shaft 2024.

[0048] It should be noted that the first transmission part 2023 can be a chain, a belt, a connecting rod or the like connecting structure. When the first transmission part 2023 is a chain or a belt, the chain or the belt is wrapped and tensioned around the outer periphery of the first driving gear and the first driven gear. When the first transmission part 2023 is a belt (first transmission belt), the two ends of the first transmission belt are sleeved around the outer periphery of the first driving gear and the first driven gear. The first transmission assembly 202 is a belt transmission structure. The flexible connection between the belt and the gear allows a certain relative sliding and displacement between the belt and the pulley during transmission, which can isolate and attenuate vibration. When the first driving gear vibrates due to various reasons, the belt can consume vibration energy through the relative motion between the belt and the pulley, reducing the transmission of vibration to subsequent transmission components (the first driven gear, the intermediate transmission assembly 204, the second transmission assembly 203, etc.), thereby making the overall structure more stable and reliable, avoiding the transmission of vibration to the pickup assembly 21 when the load is too large, and making the pickup assembly 21 not completely die-cut, even the parts are worn or damaged.

[0049] Again referring to Figure 2 and Figure 3 When each intermediate transmission assembly 204 is a gear transmission structure, the intermediate driving end 2041 of the intermediate transmission assembly 204 can be an intermediate driving gear, and the intermediate driven end 2042 can include an intermediate driven gear and an intermediate transmission part 2043. The specific connection relationship between the three is that each intermediate driving gear is sleeved on a corresponding end of the first transmission shaft 2024, each intermediate driving gear and each intermediate driven gear are located on the side of the corresponding support plate 10 away from the first driven gear (i.e., the outer side of the two support plates 10), and the two ends of the intermediate transmission part 2043 in the length direction are respectively in transmission connection with the intermediate driving gear and the intermediate driven gear on the same side of the support plate 10. Thus, the power damped by the first transmission assembly 202 is synchronously transmitted to the corresponding intermediate driving gear through the two ends of the first transmission shaft 2024, each intermediate driving gear is transmitted to the intermediate driven gear through the corresponding intermediate transmission part 2043, and each component (intermediate driving gear, intermediate transmission part 2043 and intermediate driven gear) can absorb vibration and impact during power transmission, thereby improving the structural reliability and stability.

[0050] It should be noted that the intermediate transmission part 2043 can be a connecting structure such as a chain, a belt, or a connecting rod. When the intermediate transmission part 2043 is a chain or a belt, the chain or the belt is wrapped around and tensioned on the outer periphery of the intermediate driving gear and the intermediate driven gear. When the intermediate transmission part 2043 is a belt (intermediate transmission belt), the two ends of the intermediate transmission belt are sleeved on the outer periphery of the intermediate driving gear and the intermediate driven gear. The intermediate transmission assembly 204 is a belt transmission structure. The belt transmission structure of the gear and the belt has the same beneficial effects as the first transmission assembly 202 described above. Therefore, the details are not repeated here.

[0051] Again referring to Figure 3 When the second transmission assembly 203 is a gear transmission structure, the second driving end 2031 of the second transmission assembly 203 can be a second driving gear, the second driven end 2032 can include a second driven gear and a second transmission part 2033, and the second transmission assembly 203 can further include a second transmission shaft 2034. The specific connection relationship between the four is as follows: the second driving gear is rotatably arranged on one side of the corresponding support plate 10 close to the first driven gear (i.e., the inner side of the support plate 10 or between the two support plates 10); at the corresponding position of each support plate 10, the second transmission shaft 2034 can pass through the through hole formed on the support plate 10 and be arranged on the corresponding support plate 10, and the two ends of the second transmission shaft 2034 are located on the two sides of the corresponding support plate 10. The intermediate driven gear is coaxially arranged on the outer side of the corresponding support plate 10 with the corresponding second transmission shaft 2034, that is, the intermediate driven gear and the second driving gear are arranged on the two sides of the corresponding support plate 10, respectively, and are in transmission connection with the two ends of the corresponding second transmission shaft 2034. The second transmission shaft 2034 can synchronously transmit the power of the intermediate driven gear to the corresponding second driving gear. In addition, the two ends of the second transmission part 2033 along its extension direction are in transmission connection with the second driving gear and the second driven gear, respectively. Therefore, the second driving gear transmits power to the second driven gear through the corresponding second transmission part 2033. During the power transmission process, each component (the second driving gear, the second transmission part 2033, or the second driven gear) can absorb vibration and impact, thereby improving the structural reliability and stability. In addition, the second transmission part 2033 or the second driven gear can be fixedly connected to the two ends of the pickup assembly 21, thereby driving the pickup assembly 21 to move back and forth along the pickup direction of the sheet material at a low and stable speed.

[0052] It should be noted that the second transmission part 2033 can be a chain, a belt, a connecting rod or the like, when the second transmission part 2033 is a chain or a belt, the chain or the belt is wrapped and tensioned around the outer periphery of the second driving gear and the second driven gear. And when the second transmission part 2033 is a belt (second transmission belt), the two ends of the second transmission belt are sleeved on the outer periphery of the second driving gear and the second driven gear, and the two ends of the pickup assembly 21 are fixedly connected to the corresponding second transmission belt. The second transmission assembly 203 is a belt transmission structure, and the beneficial effects of the belt transmission structure of the gear and the belt are the same as those of the first transmission assembly 202 described above. Here, it will not be repeated.

[0053] Further, each second transmission assembly 203 can further include a second tensioning wheel 2035 located between the second driving gear and the second driven gear. The intermediate portion of the second transmission belt is adapted to the outer periphery of the second tensioning wheel 2035. By setting the second tensioning wheel 2035, the second transmission belt is subjected to appropriate pressure, so that the second transmission belt always maintains a certain degree of tension, thereby ensuring that there is enough friction between the second transmission belt and the gear to transmit power, and ensuring the reliability and stability of the transmission system.

[0054] It can be understood that in the above arrangement, at the corresponding end of the pickup assembly 21, the first driving gear, the first driven gear, the first transmission part 2023 of the first transmission assembly 202, and the second driving gear, the second driven gear, the second transmission part 2033, and the second tensioning wheel 2035 of the second transmission assembly 203 are arranged on the same side of the corresponding support plate 10 (inside the corresponding support plate 10, i.e. between the two support plates 10), and the intermediate transmission assembly 204 is arranged on the other side of the corresponding support plate 10 (outside the corresponding support plate 10). Such an arrangement can save space in the extension direction of the pickup assembly 21, and the layout is more reasonable.

[0055] It should be noted that the specific size of each gear is not limited in the present application, and those skilled in the art can make reasonable arrangements according to needs.

[0056] In order to facilitate understanding of the process of step-by-step damping of the transmission mechanism 20, the following describes the specific transmission process by taking one of the above transmission mechanisms 20 as an example:

[0057] When the drive assembly 201 includes a motor 2011 and a reducer 2012, and each transmission component is a belt drive structure, the output end of the motor 2011 is connected to the input end of the reducer 2012. The output end of the reducer 2012 is coaxially arranged with the first drive gear. When the output end (output shaft) of the reducer 2012 rotates, the first drive gear sleeved on the output shaft rotates synchronously. The first drive gear drives the first driven gear to rotate through the first transmission belt. The first driven gear drives the first transmission shaft 2024 to rotate synchronously by being coaxially arranged with it. Furthermore, since each intermediate drive gear is also coaxially arranged with the first transmission shaft 2024 by being sleeved on it, the first transmission shaft 2024 rotates... When the intermediate drive gears at both ends rotate synchronously, each intermediate drive gear drives the corresponding intermediate driven gear to rotate through the corresponding intermediate transmission belt. Furthermore, since each second transmission component 203 is connected to the corresponding intermediate driven gear through the second transmission shaft 2034, when each intermediate driven gear rotates, it drives the corresponding second drive gear to rotate synchronously with it through the second transmission shaft 2034. The second drive gear drives the corresponding second driven gear to rotate through the second transmission belt. Since the transmission speed of the second transmission belt is related to the rotation speed of the second drive gear, the second transmission belt, as the driven end, can move back and forth along the picking direction of the sheet material at a low and stable speed to connect the two ends of the extension direction of the picking component 21 to transport the sheet material.

[0058] Example 2

[0059] This embodiment provides a sheet material picking device 2 for a die-cutting machine similar to that in Embodiment 1, such as... Figure 1 As shown, the sheet material picking device 2 is mounted on the frame 1 of the die-cutting machine, and includes a transmission mechanism 20 and a picking assembly 21. The output end of the transmission mechanism 20 is connected to the picking assembly 21 and can drive the picking assembly 21 along the sheet material picking direction. Figure 1 The X arrow in the figure indicates the direction of movement; the difference between this embodiment and embodiment 1 is that the transmission mechanism 20 only includes a drive component 201, a first transmission component 202 and a second transmission component 203. Through the transmission cooperation between the first transmission component 202 and the second transmission component 203, vibration can be reduced step by step, and finally the pickup component 21 is driven to move back and forth along the pickup direction of the sheet material at a low and stable speed.

[0060] Specifically, the driving assembly 201 is fixedly arranged on the rack 1, and includes a motor 2011 and a speed reducer 2012 fixed on the rack 1. The output end of the motor 2011 is in transmission connection with the input end of the speed reducer 2012. The output end of the speed reducer 2012 is coaxially arranged with the first driving end 2021 (first driving gear) of the first transmission assembly 202. Under the condition that the output rotating speed of the motor 2011 is constant, two-stage damping is realized by using the subsequent transmission assemblies (the first transmission assembly 202 and the second transmission assembly 203). The power is transmitted step by step to reduce vibration and impact, prevent vibration from being transmitted to the pickup assembly 21, cause the pickup assembly 21 to shake, cause incomplete die cutting, or even cause the parts to wear or damage, and enhance the structural stability and reliability.

[0061] The first transmission assembly 202 includes the first driving end 2021 and the first driven end 2022 in transmission connection with each other. The second transmission assembly 203 includes the second driving end 2031 and the second driven end 2032 in transmission connection with each other. The first driving end 2021 is in transmission connection with the output end of the speed reducer 2012. The second driven end 2032 is in transmission connection with the end of the pickup assembly 21, so that the pickup assembly 21 is reciprocally moved along the pickup direction of the sheet material.

[0062] It should be noted that the first driven end 2022 and the second driving end 2031 are in transmission connection through a synchronous connecting piece. The synchronous connecting piece can be a rotating shaft, or other synchronous connecting pieces such as a connecting rod and a spring rod.

[0063] By adopting the above arrangement, the first transmission assembly 202 is in first-stage damping through transmission between the first driving end 2021 and the first driven end 2022. The second transmission assembly 203 is in second-stage damping through transmission between the second driving end 2031 and the second driven end 2032. The transmission mechanism 20 is equivalent to two-stage damping. In the power transmission process, the transmission mechanism 20 plays a buffering effect through step-by-step transmission. Compared with a one-stage transmission structure, the overall structural stability is better, and the situation that the parts are worn or damaged due to excessive load can be avoided.

[0064] Embodiment 3

[0065] The sheet material pickup device 2 of the die cutting machine provided in this embodiment is a further arrangement based on the arrangement that the two ends of the pickup assembly 21 are respectively fixedly connected to the corresponding second driven end 2032 (second driven gear or second transmission belt) in the embodiment 1 or the embodiment 2. The same structure will not be described here.

[0066] In one of the specific embodiments of the utility model, Figure 4As shown, the pickup assembly 21 includes a pickup bracket 211 and a plurality of suction cups 212. The plurality of suction cups 212 are fixedly mounted on the pickup bracket 211 at intervals along the extending direction of the pickup bracket 211 (i.e., the extending direction of the pickup assembly 21), facing the sheet being transported. Figure 4 (Not shown in the image) The two ends of the pick-up bracket 211 are fixedly connected to the corresponding second transmission belts, and the multiple suction cups 212 move back and forth along the pick-up direction of the sheet material.

[0067] It should be noted that the suction cups 212 can be set in two, four, six, or eight, etc. Those skilled in the art can set them reasonably according to their needs. The more suction cups set, the more contact points with the conveyed sheet material, and the higher the conveying efficiency.

[0068] The sheet material picking device 2 also includes a guiding component 22, which includes a moving part 221 and a guiding part 222. One end of the moving part 221 is fixedly connected to the picking bracket 211, and the guiding part 222 extends along the picking direction of the sheet material and is fixed on the frame 1. The other end of the moving part 221 is adapted to the guiding part 222 and can move along the picking direction of the sheet material. By setting the moving part 221 and the guiding part 222, the picking component 21 can be guided and further supported.

[0069] It should be noted that the guide component 22 can be evenly spaced in one, two, or three groups along the extension direction of the pickup component 21. The more groups set, the more support points there are for the pickup bracket 211, and the better the stability during movement.

[0070] It should also be noted that the guide component 22 can be either a sliding guide structure or a rolling guide structure, as long as it enables the moving part 221 to move along the picking direction of the sheet. When the guide component 22 is a sliding guide structure, the moving part 221 and the guide part 222 can be mutually adapted slide rails and grooves; when the guide component 22 is a rolling guide structure, the moving part 221 and the guide part 222 can be mutually adapted rollers and grooves.

[0071] In one specific embodiment of this utility model, such as Figure 4 As shown, the pickup assembly 21 has a guide assembly 22 at each end in the extending direction. The two ends of the pickup bracket 211 are fixedly connected to one end of the moving part 221 of the corresponding guide assembly 22. Each moving part 221 has a connecting part 2211 extending towards the corresponding second transmission belt, and each connecting part 2211 is fixedly connected to the corresponding second transmission belt. Each connecting part 2211 includes two opposing connecting plates, and a corresponding portion of each second transmission belt is fixed within a groove formed by the two connecting plates.

[0072] Specifically, by setting a guide assembly 22 at each end of the extension direction of the pickup assembly 21, the two ends of the pickup assembly 21 are simultaneously supported and guided, avoiding displacement of the pickup assembly 21. And by connecting the second transmission belt with the moving part 221 through the connecting part 2211, the second transmission belt can drive the moving part 221 to move synchronously when moving along the pickup direction of the sheet material, and then drive the two ends of the pickup support 211 to move synchronously. Since the second transmission belt is a sheet-shaped transmission structure, the connecting part 2211 is provided as two oppositely arranged connecting plates, and each corresponding part of the second transmission belt is fixed in the groove formed by the two connecting plates, so that the connection between the connecting plates and the second transmission belt is more stable and firm.

[0073] In one of the specific embodiments of the present application, the sheet material pickup device 2 further comprises a stroke sensing assembly 23, which comprises a plurality of sensors 231 arranged on the inner side of a support plate 10 along the pickup direction of the sheet material, and a transmitter 232 fixed on the connecting part 2211 near one support plate 10, and the inner side of the support plate 10 is the side opposite to the two support plates 10.

[0074] Specifically, since the connecting part 2211 moves synchronously with the moving part 221 and the pickup support 211, by arranging the transmitter 232 and the corresponding sensor 231 along the pickup direction of the sheet material, the distance and speed of the pickup assembly 21 moving along the pickup direction can be detected, so as to facilitate the operator to control and adjust.

[0075] It should be noted that two sensors 231 can be arranged at both ends of one support plate 10 along the pickup direction of the sheet material, and by detecting the time point of signal transmission between the two sensors 231, the moving position and transmission speed of the pickup assembly 21 and other related information can be determined.

[0076] It should be further noted that the rack 1 of the die-cutting machine provided in the above-mentioned embodiments 1, 2 and 3 of the present application can be selected from the existing rack in the prior art, and the transmission mechanism 20 and the pickup assembly 21 can be directly adapted to the existing rack, which has good adaptability and can reduce the replacement cost.

[0077] It should be noted that in addition to the specific embodiment described above, other advantages and effects of the present application can be easily understood by those skilled in the art from the disclosure. Although the description of the present application will be introduced in combination with the preferred embodiments, it does not mean that the features of the present application are limited to the embodiments. On the contrary, the purpose of introducing the present application in combination with the embodiments is to cover other options or modifications that can be extended based on the claims of the present application. In order to provide a deep understanding of the present application, many specific details will be included in the following description. The present application can also be implemented without using these details. In addition, in order to avoid confusion or obscure the focus of the present application, some specific details will be omitted in the description. It should be noted that the embodiments in the present application and the features in the embodiments can be combined with each other without conflict.

[0078] It should be noted that in this specification, similar reference numbers and letters represent similar items in the following drawings, so once an item is defined in one drawing, it does not need to be further defined and explained in subsequent drawings.

[0079] In the description of the present embodiment, it should be noted that the terms "upper", "lower", "inner", "bottom" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship commonly used when the present application is used, only for the convenience of describing the present application and simplifying the description, and therefore cannot be understood as indicating or implying that the device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present application.

[0080] The terms "first", "second", and the like are only used for differentiation and cannot be understood as indicating or implying relative importance.

[0081] In the description of the present embodiment, it should also be noted that unless otherwise explicitly specified and limited, the terms "set", "connected", "connected" should be broadly understood, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium, or it can be connected inside two elements. For those skilled in the art, the specific meaning of the above terms in the present embodiment can be understood according to the specific circumstances.

[0082] Although the utility model has been illustrated and described by referring to certain preferred embodiments of the utility model, it should be understood by those skilled in the art that the above content is the further detailed description of the utility model combined with the specific embodiments, and the specific implementation of the utility model cannot be limited to these descriptions. Those skilled in the art can make various changes in form and details, including making several simple inferences or replacements, without departing from the spirit and scope of the utility model.

Claims

1. A sheet pick-up device of a die cutting machine, the sheet pick-up device being provided on a frame of the die cutting machine, characterized by, The sheet material pickup device comprises a transmission mechanism and a pickup assembly, an output end of the transmission mechanism is in transmission connection with the pickup assembly and can drive the pickup assembly to move along a pickup direction of the sheet material; wherein The transmission mechanism comprises a driving assembly, a first transmission assembly and a second transmission assembly, wherein The driving assembly is fixedly arranged on the rack; the first transmission assembly comprises a first driving end and a first driven end which are in transmission connection with each other, the first driving end is in transmission connection with the output end of the driving assembly; the second transmission assembly comprises a second driving end and a second driven end which are in transmission connection with each other, the second driving end is in transmission connection with the first driven end, and the second driven end is in transmission connection with an end portion of the pickup assembly to drive the pickup assembly to reciprocally move along the pickup direction.

2. The die cutter sheet pick-up apparatus of claim 1, wherein, The transmission mechanism further comprises an intermediate transmission assembly, the intermediate transmission assembly comprises an intermediate driving end and an intermediate driven end which are in transmission connection with each other, the intermediate driving end is in transmission connection with the first driven end, and the intermediate driven end is in transmission connection with the second driving end.

3. The die cutter sheet pick-up apparatus of claim 2, wherein, The first transmission assembly further comprises a first transmission shaft which extends along a direction perpendicular to the pickup direction, and the first driven end is in transmission connection with the intermediate driving end through the first transmission shaft; and The pickup assembly is respectively provided with the second transmission assembly and the intermediate transmission assembly which are adapted to each other at two end portions of the pickup assembly in the extending direction; wherein The second driving end of each second transmission assembly is in transmission connection with the corresponding intermediate driven end, and each intermediate driving end is in transmission connection with a corresponding end portion of the first transmission shaft. The rack comprises two support plates which extend parallel to the pickup direction and are respectively located on two sides of the pickup assembly in the extending direction; two ends of the first transmission shaft are respectively supported on the two support plates; and 4. The die cutter sheet pick-up apparatus of claim 3, wherein, The first transmission assembly comprises a first driving gear as the first driving end, a first driven gear as the first driven end and a first transmission part, one end of the first transmission part is in transmission connection with the first driving gear, and the other end is in transmission connection with the first driven gear, the first driven gear is sleeved on the first transmission shaft and is arranged between the two support plates; Each intermediate transmission assembly comprises an intermediate driving gear as the intermediate driving end, an intermediate driven gear as the intermediate driven end and an intermediate transmission part, one end of the intermediate transmission part is in transmission connection with the intermediate driving gear, and the other end is in transmission connection with the intermediate driven gear, each intermediate driving gear is respectively sleeved on a corresponding end portion of the first transmission shaft and is located on a side of a corresponding one of the support plates which is away from the first driven gear; and The second transmission assembly comprises a second driving gear as the second driving end and a second driven gear as the second driven end, one end of the second driven gear is in transmission connection with the first driven end, and the other end is in transmission connection with the intermediate driving end, the second driving gear is sleeved on the first transmission shaft and is arranged between the two support plates. Each of the second transmission assemblies comprises a second driving gear as the second driving end, a second driven gear as the second driven end, a second transmission part, and a second transmission shaft. One end of the second transmission part is in transmission connection with the second driving gear, and the other end is in transmission connection with the second driven gear. The second driving gear is rotatably arranged on one side of the corresponding support plate close to the first driven gear. Wherein Each of the intermediate driven gears is coaxially arranged on both sides of the corresponding second transmission shaft on the corresponding support plate.

5. The die cutter sheet pick-up apparatus of claim 4, wherein, Wherein The first transmission part is a first transmission belt. Both ends of the first transmission belt are sleeved on the outer periphery of the first driving gear and the first driven gear. In each of the second transmission assemblies, the second transmission part is a second transmission belt. Both ends of the second transmission belt are sleeved on the outer periphery of the second driving gear and the second driven gear. In addition, each of the second transmission assemblies further comprises a second tensioning wheel. The second tensioning wheel is located between the second driving gear and the second driven gear, and the intermediate part of the second transmission belt is adapted to the outer periphery of the second tensioning wheel. In each of the intermediate transmission assemblies, the intermediate transmission part is an intermediate transmission belt. Both ends of the intermediate transmission belt are sleeved on the outer periphery of the intermediate driving gear and the intermediate driven gear. Wherein Both ends of the pickup assembly are fixedly connected to the corresponding second transmission belts, respectively.

6. The die cutter sheet pick-up apparatus of claim 5, wherein, The pickup assembly comprises a pickup support and a plurality of suction cups. The plurality of suction cups are fixedly arranged on the pickup support in the extension direction, and face the sheet material. Both ends of the pickup support are fixedly connected to the corresponding second transmission belts, respectively. The plurality of suction cups are linked to move back and forth along the pickup direction. The sheet material pickup device further comprises a guide assembly. The guide assembly comprises a moving part and a guiding part. One end of the moving part is fixedly connected to the pickup support. The guiding part extends along the pickup direction and is fixed to the rack. The other end of the moving part is adapted to the guiding part and can move along the pickup direction.

7. The die cutter sheet pick-up apparatus of claim 6 wherein, Both ends of the pickup assembly in the extension direction are respectively provided with one of the guide assemblies. The two ends of the pickup support are respectively fixedly connected to one end of the moving part of the corresponding guide assembly. Each of the moving parts has a connecting part extending towards the corresponding second transmission belt. Each of the connecting parts is fixedly connected to the corresponding second transmission belt.

8. The die cutter sheet pick-up apparatus of claim 7, wherein, Each of the connecting parts comprises two oppositely arranged connecting plates. The corresponding part of each of the second transmission belts is fixed in the groove formed by the two connecting plates.

9. The die cutter sheet pick-up apparatus of claim 7, wherein, The sheet material pickup device further comprises a stroke sensing assembly. The stroke sensing assembly comprises a plurality of sensors arranged on the inner side of one of the support plates in the pickup direction, and a transmitter fixed to the connecting part close to the one support plate.

10. The die cutting machine sheet pick-up device of any of claims 4-9, wherein, The driving assembly comprises a motor and a speed reducer fixed to the rack. The output end of the motor is in transmission connection with the input end of the speed reducer. The output end of the speed reducer is coaxially arranged with the first driving gear.

Images