Orbital transfer and positioning structure for a flexible sheet product

Abstract

An orbital transfer and positioning structure for a flexible sheet product, comprising a product track and a handling robot track. Along the length direction of the track, it is divided into a loading station, a first positioning station, a second positioning station and an unloading station. A first handling robot, a second handling robot, a third handling robot and a fourth handling robot are arranged on the handling robot track corresponding to each station respectively, and the four handling robots are located on the same side. The product track includes a supporting track and an upper cover. After the supporting track and the upper cover are matched, a transfer chute and a bonding gap are formed. A first processing table, a first leveling mechanism and a first positioning mechanism are arranged at the first positioning station. A second processing table, a second leveling mechanism and a second positioning mechanism are arranged at the second positioning station. The first, second and third handling robots are all provided with a first handling component; the fourth handling robot is provided with a second handling component. This orbital transfer and positioning structure transfers the products in the transfer chute through the handling robots corresponding to each station, with smooth transfer, accurate positioning and high efficiency.

Description

Technical Field

[0001] The present invention relates to the field of die bonding and chip mounting equipment, and particularly to an orbital transfer and positioning structure for flexible sheet products. Background Art

[0002] In the chip die bonding industry, there are many ways to transfer rigid substrates, and it is also very easy to achieve. For example, the transfer between upper and lower processes can be achieved by clamping with a manipulator. However, for flexible thin semi-finished products, due to easy deformation, the traditional manipulator clamping method cannot be used for transfer. Therefore, a method of transferring sheet products through an adsorption mechanism has emerged. However, the method of transferring products through an adsorption mechanism also has the following defects:

[0003] 1) The adsorption head of the adsorption mechanism usually requires the adsorption surface to be a flat surface, while the flexible product will have a certain deformation, resulting in the adsorption surface not necessarily being flat, which easily leads to adsorption failure and is also likely to cause surface damage to the product;

[0004] 2) The adsorption process includes the action processes of adsorption, lifting, swing arm, and lowering. This requires that each step needs to be precisely adjusted to ensure accurate positioning of the transferred product. The debugging difficulty is high, time-consuming and laborious, and the production cost is correspondingly relatively high;

[0005] 3) The adsorption mechanism requires the cooperation of many precision parts. After a long operation time, it is easy to have wear of precision parts, resulting in inaccurate product positioning during the transfer process. It is necessary to re-align and calibrate, the maintenance cost is high, and the frequent maintenance schedule also affects the online production efficiency. Summary of the Invention

[0006] In view of the deficiencies of the prior art, the present invention provides an orbital transfer and positioning structure for flexible sheet products to overcome the deficiencies in the prior art.

[0007] To achieve the above objectives, the present invention is realized through the following technical solutions:

[0008] An orbital transfer and positioning structure for flexible sheet products includes a set of tracks arranged in parallel on the production line frame. The set of tracks includes a product track and a transfer hand track, and the product track is arranged in a double-track manner.

[0009] The production line is sequentially divided into a loading station, a first positioning station, a second positioning station, and an unloading station along the length direction of the set of tracks; on the transfer hand track, a first transfer hand corresponding to the loading station, a second transfer hand corresponding to the first positioning station, a third transfer hand corresponding to the second positioning station, and a fourth transfer hand corresponding to the unloading station are sequentially arranged at intervals, and the first transfer hand, the second transfer hand, the third transfer hand, and the fourth transfer hand are arranged on the same side;

[0010] The product track includes a supporting track and an upper cover covering the supporting track. After the supporting track and the upper cover are fitted together, a transfer chute and a joint gap are formed. Both the transfer chute and the joint gap extend along the length direction of the track group.

[0011] A first processing table, a first leveling mechanism, and a first positioning mechanism are provided at the first positioning station. The first processing table and the first leveling mechanism are arranged below the transfer chute, and the first positioning mechanism is arranged on the supporting track and corresponds to the first leveling mechanism.

[0012] A second processing table, a second leveling mechanism, and a second positioning mechanism are provided at the second positioning station. The second processing table and the second leveling mechanism are arranged below the transfer chute, and the second positioning mechanism is arranged on the supporting track and corresponds to the second leveling mechanism.

[0013] Further, the first leveling mechanism includes a first leveling motor, a first cam, a first lifting arm, and a first leveling bracket. The output shaft of the first leveling motor is connected to and drives the first cam to rotate. The first cam is connected to the first lifting arm. The vertically arranged first lifting arm is connected to the horizontally arranged first leveling bracket, and the first leveling bracket is located directly below the product.

[0014] Further, the first positioning mechanism includes a first positioning motor. The output shaft of the first positioning motor is connected to a first positioning pressure plate. The first positioning pressure plate is located above the product, and the first positioning pressure plate and the first leveling bracket are located on the upper and lower sides of the product respectively.

[0015] Further, the second leveling mechanism includes a front-end leveling assembly, a rear-end leveling assembly, a second leveling cross beam, and a second leveling bracket. The second leveling cross beam is located below the product and is connected to the front-end leveling assembly and the rear-end leveling assembly at both ends respectively. The second leveling bracket is fixedly installed on the second leveling cross beam, and the initial state of the second leveling bracket is at a low position.

[0016] Further, the second positioning mechanism includes a second positioning motor. The output shaft of the second positioning motor is connected to a second positioning cross beam. A second positioning pressure plate is installed on the second positioning cross beam. The second positioning pressure plate is located above the product, and the second positioning pressure plate and the second leveling bracket are located on the upper and lower sides of the product respectively.

[0017] Further, the front-end leveling assembly includes a front-end leveling motor, a front-end cam, and a front-end lifting arm. The output shaft of the front-end leveling motor is connected to and drives the front-end cam to rotate. The front-end cam is connected to the front-end lifting arm. The vertically arranged front-end lifting arm is connected to the front end of the horizontally arranged second leveling cross beam.

[0018] Further, the rear end leveling component includes a rear end leveling motor that operates synchronously with the front end leveling motor, a rear end cam, and a rear end lifting arm; the output shaft of the rear end leveling motor is connected to and drives the rear end cam to rotate, the rear end cam is connected to the rear end lifting arm, and the vertically arranged rear end lifting arm is connected to the rear end of the horizontally arranged second leveling cross beam.

[0019] Further, the first transfer hand, the second transfer hand, and the third transfer hand have the same structure, and each includes a first type of transfer shaft and a transfer motor that drives the first type of transfer shaft to run on the transfer hand track. A first transfer component is arranged on the first type of transfer shaft; the first transfer component includes a first base, a clamping motor, a driving plate, a clamping track plate, an upper clamping member, and a lower clamping member; the first base and the driving plate are horizontally arranged and are slidably matched through a slide rail. The clamping track plate is vertically arranged and is fixedly connected to the driving plate. The clamping motor drives the driving plate to slide on the first base. The upper clamping member and the lower clamping member are arranged opposite to each other above and below the product, and the upper clamping member and the lower clamping member are respectively connected to the clamping track plate through bearings; a trapezoidal protrusion is arranged on the top surface of the clamping track plate.

[0020] Further, the upper clamping member includes an upper clamping arm, an upper clamping bending piece, and an upper clamping bearing; the upper clamping bending piece is fixedly installed at one end of the upper clamping arm, and the upper clamping bearing is rotatably installed at the other end of the upper clamping arm, and the upper clamping bearing contacts an inclined surface of the trapezoidal protrusion of the clamping track plate; the lower clamping member includes a lower clamping arm, a lower clamping bending piece, and a lower clamping bearing; the lower clamping bending piece is fixedly installed at one end of the lower clamping arm, and the lower clamping bearing is rotatably installed at the other end of the lower clamping arm, and the lower clamping bearing contacts another inclined surface of the trapezoidal protrusion of the clamping track plate.

[0021] Further, the fourth transfer hand includes a second type of transfer shaft and a left - right driving motor that drives the second type of transfer shaft to run on the transfer hand track. A second transfer component is arranged on the second type of transfer shaft; the second transfer component includes a second base, and a claw cylinder and a push rod cylinder are arranged side by side on the second base. The claw cylinder is connected to a claw through a claw arm, and the push rod cylinder is connected to a push rod through a push rod arm.

[0022] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0023] 1) For the track - type transfer and positioning structure of a flexible sheet - like product in this case, by setting four transfer hands corresponding to four production stations, and the four transfer hands are arranged on the same side. The first three transfer hands transfer the product in an up - and - down clamping manner, and the fourth transfer hand sends the product into the next process by first hooking and then pushing. During the entire product transfer process, the product always remains in the product chute on the track. Moreover, a leveling mechanism and a positioning mechanism are arranged at both the first positioning station and the second positioning station to fix the product, thereby ensuring smooth product transfer, accurate positioning, and high production efficiency.

[0024] 2) The orbital transfer and positioning structure of a flexible sheet product in this case, the product track of which includes a supporting rail and an upper cover. After the supporting rail and the upper cover are combined, a transfer chute and a joint gap are formed; the joint gap and the transfer chute are not in the same plane. Therefore, even if the thickness of the sheet product is very thin, it will not get stuck in the joint gap and can only be located in the transfer chute, thus ensuring that the warped part of the product has a certain degree of freedom in the transfer chute during the transfer process, and the two ends of the product are not easily stuck in the joint gap, effectively solving the problem of unsmooth transfer caused by the product being stuck during transfer in the conventional technology.

[0025] 3) The orbital transfer and positioning structure of a flexible sheet product in this case. At the second positioning station, the front-end flattening assembly and the rear-end flattening assembly are separately arranged, and the front and rear ends are connected by the second flattening cross beam. Such a setting can effectively avoid the interference of relevant production components, making the equipment deployment of the second processing table more flexible, and also more free in terms of space when adjusting the second processing table according to production requirements later.

[0026] In order to understand the present invention more clearly, the preferred embodiments of the present invention will be described below in conjunction with the accompanying drawings. Brief Description of the Drawings

[0027] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0028] Figure 2 It is a schematic diagram of the structure of the product track of the present invention;

[0029] Figure 3 is Figure 2 an enlarged view of position A in

[0030] Figure 4 It is a schematic diagram of the structure of the first positioning station of the present invention;

[0031] Figure 5 is Figure 4 an enlarged view of position B in

[0032] Figure 6 It is a schematic diagram of the structures of the first positioning mechanism and the second positioning mechanism of the present invention;

[0033] Figure 7 It is a schematic diagram of the structure of the first handling component of the present invention;

[0034] Figure 8 It is a schematic diagram of the structure of the second handling component of the present invention.

[0035] Reference Signs in the Drawings:

[0036] 1 - Product track, 2 - Carrier track; 11 - Support rail, 12 - Upper cover, 13 - Transfer chute, 14 - Joint gap; 21 - First carrier, 22 - Second carrier, 23 - Third carrier, 24 - Fourth carrier; 31 - First processing table, 32 - First leveling mechanism, 33 - First positioning mechanism; 322 - First cam, 323 - First lifting arm; 331 - First positioning motor, 332 - First positioning pressing plate; 41 - Second processing table, 42 - Second leveling mechanism, 43 - Second positioning mechanism; 421 - Front-end cam, 422 - Rear-end leveling motor; 431 - Second positioning motor, 432 - Second positioning pressing plate; 200 - First base, 201 - Biting motor, 202 - Driving plate, 203 - Biting track plate; 2041 - Upper clamping arm, 2042 - Upper clamping bending piece, 2043 - Upper clamping bearing; 2051 - Lower clamping arm, 2052 - Lower clamping bending piece, 2053 - Lower clamping bearing; 241 - Second base, 242 - Hook cylinder, 243 - Push rod cylinder; 2421 - Hook arm, 2422 - Hook; 2431 - Push rod arm, 2432 - Push rod. Detailed implementation mode

[0037] In the description of the present invention, it should be understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus cannot be understood as a limitation to the present invention. In the description of the present invention, unless otherwise specified, the meaning of "a plurality of" is two or more.

[0038] In addition, if there are terms such as "first" and "second", they are only for descriptive purposes, mainly used to distinguish different devices, elements or components (the specific types and structures may be the same or different), and do not indicate or imply the relative importance and quantity of the indicated devices, elements or components, and cannot be understood as indicating or implying relative importance.

[0039] In addition, it should be noted that unless otherwise clearly specified and limited, the terms "installation", "provided with", "sheathed / connected", "connection", etc. should be understood in a broad sense. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two elements; for those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific situations.

[0040] Please refer to Figure 1-8 , the present invention provides an orbital transfer and positioning structure for flexible sheet products, including an orbital group arranged in parallel on the production line frame. The orbital group includes a product orbit 1 and a transfer hand orbit 2. The product orbit 1 is arranged in a double-track manner and is used to transport the flexible sheet products to be processed. The transfer hand orbit 2 is used to install the transfer hands for transferring the products. The production line is sequentially divided into a loading station, a first positioning station, a second positioning station, and an unloading station along the length direction of the orbital group.

[0041] On the transfer hand orbit 2, a first transfer hand 21 corresponding to the loading station, a second transfer hand 22 corresponding to the first positioning station, a third transfer hand 23 corresponding to the second positioning station, and a fourth transfer hand 24 corresponding to the unloading station are sequentially arranged at intervals, and the first transfer hand 21, the second transfer hand 22, the third transfer hand 23, and the fourth transfer hand 24 are arranged on the same side; the first transfer hand 21 reciprocates and transfers the product from the unloading station to the first positioning station for the first processing (such as dust removal or dispensing on the product), the second transfer hand 22 reciprocates and transfers the product from the first positioning station to the second positioning station for the second processing (such as chip mounting on the product), the third transfer hand 23 reciprocates and transfers the product from the second positioning station to the unloading station, and the fourth transfer hand 24 reciprocates and transfers the product from the unloading station to the next production process.

[0042] The product orbit 1 includes a support rail 11 and an upper cover 12 covering the support rail 11. After the support rail 11 and the upper cover 12 are fitted, a transfer chute 13 and a joint gap 14 are formed. Both the transfer chute 13 and the joint gap 14 extend along the length direction of the orbital group. The product orbit 1 is arranged in a double-track manner, and the two transfer chutes 13 are relatively located inside the two support rails 11. The flexible sheet products to be processed are supported in the two transfer chutes 13, and during the operation of the production line, the products are always in the transfer chutes 13 and are transferred along the length direction of the support rail 11.

[0043] The function of the joint gap 14 is as follows: since the product to be processed is a flexible sheet product, and the two ends of the product are supported in two transfer chutes 13, while the middle part of the product is in an overhead state, under the action of the product's own gravity, the overhead position of the middle part of the product will bend downward and deform to a certain extent during the transfer process, which will cause the end of the product in the transfer chute 13 to be warped to a certain extent. In the design of the previous product track 1, the upper cover 12 did not deviate from the joint gap 14 between the support rails 11, which caused the warped parts at both ends of the product to be easily stuck in the tight fitting gap, resulting in unsmooth product transfer; while in the technical solution of the present application, there is a joint gap 14 with a certain width, and the joint gap 14 and the transfer chute 13 are not located on the same plane, so even if the thickness of the sheet product is very thin, it will not be stuck in the joint gap 14, and can only be located in the transfer chute 13, while reducing the processing accuracy and assembly accuracy requirements between the support rails 11 and the upper cover 12, solving the problem of easy jamming of thin sheet products.

[0044] The first positioning station is provided with a first processing table 31 , a first leveling mechanism 32 and a first positioning mechanism 33 ; the first processing table 31 and the first leveling mechanism 32 are arranged below the transfer chute 13 , and the first positioning mechanism 33 is arranged on the support rail 11 and corresponds to the first leveling mechanism 32 .

[0045] The first jacking mechanism 32 includes a first jacking motor, a first cam 322, a first lifting arm 323 and a first jacking bracket; the output shaft of the first jacking motor is connected to and drives the first cam 322 to rotate, the first cam 322 is connected to the first lifting arm 323, the vertically arranged first lifting arm 323 is connected to the horizontally arranged first jacking bracket, and the first jacking bracket is located directly below the product. Since the cam has the characteristic of different radii, when the first cam 322 rotates, it drives the first lifting arm 323 to rise and fall, thereby driving the first jacking bracket to rise and fall, and the initial state of the first jacking bracket is a low position, which can avoid interference with the product or the first processing table 31.

[0046] The first positioning mechanism 33 includes a first positioning motor 331, the output shaft of the first positioning motor 331 is connected to a first positioning platen 332, the first positioning platen 332 is located above the product, and the first positioning platen 332 and the first top flat bracket are located at the upper and lower sides of the product.

[0047] The workflow of the first positioning station is:

[0048] The first transfer arm 21 transfers the flexible sheet product to be processed to the position corresponding to the first processing table 31. Since the product to be processed is flexible and sheet-like, there will be a certain downward bending deformation at the overhead position in the middle of the product. The product must be leveled before the first processing table 31 can process the product. At this time, driven by the first leveling motor, the first leveling bracket rises from the low position and levels the product from the bottom. Then, the first positioning motor 331 drives the first positioning pressing plate 332 to descend and press the product. Under the combined action of the first leveling bracket and the first positioning pressing plate 332, the product is flatly fixed in the transfer chute 13. Then, the first processing table 31 performs the first processing on the product (such as dust removal, dispensing, etc.). After the first processing is completed, the first transfer arm 21, the first leveling mechanism 32, and the first positioning mechanism 33 are reset. Thereafter, the product that has undergone the first processing will be transferred to the second positioning station by the second transfer arm 22.

[0049] A second processing table 41, a second leveling mechanism 42, and a second positioning mechanism 43 are provided at the second positioning station; the second processing table 41 and the second leveling mechanism 42 are provided below the transfer chute 13, and the second positioning mechanism 43 is provided on the support rail 11 and corresponds to the second leveling mechanism 42.

[0050] The second leveling mechanism 42 includes a front-end leveling assembly, a rear-end leveling assembly, a second leveling cross beam, and a second leveling bracket. The second leveling cross beam is located below the product and is respectively connected to the front-end leveling assembly and the rear-end leveling assembly at both ends. The second leveling bracket is fixedly installed on the second leveling cross beam, and the initial state of the second leveling bracket is at a low position.

[0051] The front-end leveling assembly includes a front-end leveling motor, a front-end cam 421, and a front-end lifting arm; the output shaft of the front-end leveling motor is connected to and drives the front-end cam 421 to rotate. The front-end cam 421 is connected to the front-end lifting arm, and the vertically arranged front-end lifting arm is connected to the front end of the horizontally arranged second leveling cross beam.

[0052] The rear-end leveling assembly includes a rear-end leveling motor 422 that operates synchronously with the front-end leveling motor, a rear-end cam, and a rear-end lifting arm; the output shaft of the rear-end leveling motor 422 is connected to and drives the rear-end cam to rotate. The rear-end cam is connected to the rear-end lifting arm, and the vertically arranged rear-end lifting arm is connected to the rear end of the horizontally arranged second leveling cross beam.

[0053] Since the front-end top-flattening component and the rear-end top-flattening component operate synchronously, the front-end top-flattening component and the rear-end top-flattening component jointly drive the second top-flattening bracket on the second top-flattening cross beam. The second top-flattening bracket moves up and down and flattens the product from the bottom. At the second positioning station, the front-end top-flattening component and the rear-end top-flattening component are separately arranged, and the front and rear ends are connected by the second top-flattening cross beam. Such an arrangement can effectively avoid the interference of relevant production components, making the equipment deployment of the second processing table 41 more flexible, and also more free in space when adjusting the second processing table 41 according to production requirements later.

[0054] The second positioning mechanism 43 includes a second positioning motor 431. The output shaft of the second positioning motor 431 is connected to a second positioning cross beam. A second positioning pressing plate 432 is installed on the second positioning cross beam. The second positioning pressing plate 432 is located above the product. The second positioning pressing plate 432 and the second top-flattening bracket are located on the upper and lower sides of the product respectively.

[0055] The working process of the second positioning station is as follows:

[0056] The second transfer arm 22 transfers the flexible sheet-like product to be processed to a position corresponding to the second processing table 41. Since the product to be processed is flexible and sheet-like, the middle part of the product will have a certain downward bending deformation when it is suspended in the air. The product must be flattened before the second processing table 41 can process the product. Under the combined action of the front-end top-flattening component and the rear-end top-flattening component, the second top-flattening bracket rises from the low position and flattens the product. Then, the second positioning motor 431 drives the second positioning pressing plate 432 to descend and press the product. Under the combined action of the second top-flattening bracket and the second positioning pressing plate 432, the product is flatly fixed in the transfer chute 13. Then, the second processing table 41 performs a second processing (such as chip mounting, etc.) on the product. After the second processing is completed, the second transfer arm 22, the second top-flattening mechanism 42 and the second positioning mechanism 43 are reset. After that, the product that has undergone the second processing will be transferred to the discharging station by the third transfer arm 23.

[0057] The structures and working principles of the first transfer arm 21, the second transfer arm 22 and the third transfer arm 23 are the same. They all include a first type of transfer shaft and a transfer motor that drives the first type of transfer shaft to run on the transfer arm track 2. A first transfer component is arranged on the first type of transfer shaft.

[0058] The first transfer component includes a first base 200, a biting motor 201, a driving plate 202, a biting track plate 203, an upper clamping member and a lower clamping member. The first base 200 and the driving plate 202 are horizontally arranged and are slidably matched through a slide rail. The biting track plate 203 is vertically arranged and is fixedly connected to the driving plate 202. The biting motor 201 drives the driving plate 202 to slide on the first base 200. The upper clamping member and the lower clamping member are arranged opposite to each other on the upper and lower sides of the product, and the upper clamping member and the lower clamping member are respectively connected to the biting track plate 203 through bearings.

[0059] The occlusal track plate 203 has a trapezoidal protrusion on its top surface.

[0060] The upper clamping member includes an upper clamping arm 2041, an upper clamping bending piece 2042, and an upper clamping bearing 2043; the upper clamping bending piece 2042 is fixedly installed at one end of the upper clamping arm 2041, the upper clamping bearing 2043 is rotatably installed at the other end of the upper clamping arm 2041, and the upper clamping bearing 2043 contacts an inclined surface of the trapezoidal protrusion of the occlusal track plate 203.

[0061] The lower clamping member includes a lower clamping arm 2051, a lower clamping bending piece 2052, and a lower clamping bearing 2053; the lower clamping bending piece 2052 is fixedly installed at one end of the lower clamping arm 2051, the lower clamping bearing 2053 is rotatably installed at the other end of the lower clamping arm 2051, and the lower clamping bearing 2053 contacts the other inclined surface of the trapezoidal protrusion of the occlusal track plate 203.

[0062] The working principle of the first handling assembly is as follows:

[0063] The occlusion motor 201 drives the drive plate 202, and the drive plate 202 drives the occlusal track plate 203 to reciprocate back and forth. Since the upper clamping bearing 2043 contacts an inclined surface of the trapezoidal protrusion of the occlusal track plate 203, and the lower clamping bearing 2053 contacts the other inclined surface of the trapezoidal protrusion of the occlusal track plate 203, under the action of the trapezoidal protrusion of the occlusal track plate 203, the upper clamping bearing 2043 and the lower clamping bearing 2053 respectively drive the upper clamping bending piece 2042 and the lower clamping bending piece 2052 to synchronously perform relative up and down reciprocating movements, thereby forming a clamping opening between the upper clamping bending piece 2042 and the lower clamping bending piece 2052. When the clamping opening is closed, the flexible sheet product to be processed is clamped, and by driving the first type of handling shaft to run on the handling hand track 2 by the handling motor, the product can be transported; when the clamping opening is opened, the flexible sheet product to be processed is released, and the handling motor drives the first type of handling shaft to reset on the handling hand track 2. The first handling hand 21, the second handling hand 22, and the third handling hand 23 respectively use the biteable first handling assembly to transport the flexible sheet product to be processed.

[0064] The fourth handling hand 24 includes a second type of handling shaft and a left and right drive motor for driving the second type of handling shaft to run on the handling hand track 2, and a second handling assembly is provided on the second type of handling shaft.

[0065] The second handling assembly includes a second base 241, a claw cylinder 242 and a push rod cylinder 243 are arranged side by side on the second base 241, the claw cylinder 242 is connected to a claw 2422 through a claw arm 2421, and the push rod cylinder 243 is connected to a push rod 2432 through a push rod arm 2431.

[0066] The working principle of the fourth transfer arm 24 is as follows:

[0067] After the third transfer arm 23 transfers the product to the discharging station, the fourth transfer arm 24 takes over the transfer work of the product. After the left and right drive motors drive the second type of transfer shaft to reach the product position, the claw cylinder 242 drives the claw 2422 to lower from the high position to the working position. Driven by the left and right drive motors, the claw 2422 hooks the product and makes a primary transfer in the direction of the next process. After the primary transfer is completed, the claw cylinder 242 and the claw 2422 reset. Then, the push rod cylinder 243 drives the push rod 2432 to lower from the high position to the working position. Driven by the left and right drive motors, the push rod 2432 pushes the product to make a secondary transfer in the direction of the next process and finally pushes the product into the next process. Finally, the push rod cylinder 243 and the push rod 2432 reset, completing the transfer process of the product on the product track 1.

[0068] Compared with the prior art, the track-type transfer and positioning structure of a flexible sheet product in this case corresponds to four production stations by setting four transfer arms. The first three transfer arms transfer the product in the way of clamping from above and below, and the fourth transfer arm sends the product into the next process by the way of hooking first and then pushing. During the whole product transfer process, the product always remains in the product chute on the track. Moreover, a top-flattening mechanism and a positioning mechanism are set at the first positioning station and the second positioning station to fix the product, so as to ensure smooth product transfer, accurate positioning and high production efficiency.

[0069] The above embodiments only represent several implementation manners of the present invention. The description is relatively specific and detailed, but it should not be construed as a limitation on the scope of the invention patent. It should be noted that for those of ordinary skill in the art, without departing from the concept of the present invention, several deformations and improvements can still be made, and these all belong to the protection scope of the present invention.

Claims

1. A track-type transport and positioning structure for flexible sheet products, comprising a track group arranged in parallel on a production line frame, the track group comprising a product track (1) and a transport hand track (2), the product track (1) being a double track arrangement, characterized in that: The production line is divided into a loading station, a first positioning station, a second positioning station and a discharging station in sequence along the length direction of the track group; the first handling hand (21) corresponding to the loading station, the second handling hand (22) corresponding to the first positioning station, the third handling hand (23) corresponding to the second positioning station, and the fourth handling hand (24) corresponding to the discharging station are arranged in sequence on the handling hand track (2), and the first handling hand (21), the second handling hand (22), the third handling hand (23) and the fourth handling hand (24) are arranged on the same side; The product track (1) comprises a support rail (11) and an upper cover (12) covering the support rail (11); the support rail (11) and the upper cover (12) cooperate to form a transfer chute (13) and a joint gap (14); the transfer chute (13) and the joint gap (14) both extend along the length direction of the track group; The first positioning station is provided with a first processing table (31), a first leveling mechanism (32) and a first positioning mechanism (33); the first processing table (31) and the first leveling mechanism (32) are arranged below the transfer chute (13), and the first positioning mechanism (33) is arranged on the support rail (11) and corresponds to the first leveling mechanism (32); The second positioning station is provided with a second processing table (41), a second leveling mechanism (42) and a second positioning mechanism (43); the second processing table (41) and the second leveling mechanism (42) are arranged below the transfer chute (13), and the second positioning mechanism (43) is arranged on the support rail (11) and corresponds to the second leveling mechanism (42).

2. A track-type transport and positioning structure for flexible sheet products according to claim 1, characterized in that: The first jacking mechanism (32) comprises a first jacking motor, a first cam (322), a first jacking arm (323) and a first jacking bracket; the output shaft of the first jacking motor is connected to and drives the first cam (322) to rotate, the first cam (322) is connected to the first jacking arm (323), the vertically arranged first jacking arm (323) is connected to the horizontally arranged first jacking bracket, and the first jacking bracket is located directly below the product.

3. A track-type transport and positioning structure for flexible sheet products according to claim 2, characterized in that: The first positioning mechanism (33) comprises a first positioning motor (331), the output shaft of the first positioning motor (331) is connected to a first positioning pressure plate (332), the first positioning pressure plate (332) is located above the product, and the first positioning pressure plate (332) and the first top flat bracket are located at the upper and lower sides of the product relative to each other.

4. A track-type transport and positioning structure for flexible sheet products according to claim 3, characterized in that: The second top-leveling mechanism (42) comprises a front-end top-leveling component, a rear-end top-leveling component, a second top-leveling beam and a second top-leveling bracket. The second top-leveling beam is located below the product and its two ends are respectively connected to the front-end top-leveling component and the rear-end top-leveling component. The second top-leveling bracket is fixedly mounted on the second top-leveling beam, and the initial state of the second top-leveling bracket is a low position.

5. A track-type transport and positioning structure for flexible sheet products according to claim 4, characterized in that: The second positioning mechanism (43) comprises a second positioning motor (431), the output shaft of the second positioning motor (431) is connected to the second positioning beam, a second positioning pressure plate (432) is installed on the second positioning beam, the second positioning pressure plate (432) is located above the product, and the second positioning pressure plate (432) and the second top flat bracket are located at the upper and lower sides of the product relative to each other.

6. A track-type transport and positioning structure for flexible sheet products according to claim 5, characterized in that: The front end leveling assembly comprises a front end leveling motor, a front end cam (421) and a front end lifting arm; the output shaft of the front end leveling motor is connected to and drives the front end cam (421) to rotate, the front end cam (421) is connected to the front end lifting arm, and the vertically arranged front end lifting arm is connected to the front end of a second leveling beam arranged horizontally.

7. A track-type transport and positioning structure for flexible sheet products according to claim 6, characterized in that: The rear end leveling assembly comprises a rear end leveling motor (422) which operates synchronously with the front end leveling motor, a rear end cam and a rear end lifting arm; the output shaft of the rear end leveling motor (422) is connected to and drives the rear end cam to rotate, the rear end cam is connected to the rear end lifting arm, and the vertically arranged rear end lifting arm is connected to the rear end of the second leveling beam arranged horizontally.

8. A track-type transport and positioning structure for flexible sheet products according to claim 7, characterized in that: The first transport hand (21), the second transport hand (22) and the third transport hand (23) have the same structure and all include a first type of transport shaft and a transport motor driving the first type of transport shaft to run on the transport hand track (2); the first type of transport shaft is provided with a first transport assembly; the first transport assembly includes a No. 1 base (200), an engagement motor (201), a drive plate (202), an engagement track plate (203), an upper clamping member and a lower clamping member; the No. 1 base (200) and the drive motor The movable plate (202) is horizontally arranged and slidably matched through a slide rail, the engaging track plate (203) is vertically arranged and fastened to the driving plate (202), the engaging motor (201) drives the driving plate (202) to slide on the No. 1 base (200), the upper clamping member and the lower clamping member are relatively arranged on the upper and lower sides of the product, and the upper clamping member and the lower clamping member are respectively connected to the engaging track plate (203) through bearings; the top surface of the engaging track plate (203) is provided with a trapezoidal protrusion.

9. A track-type transport and positioning structure for flexible sheet products according to claim 8, characterized in that: The upper clamping member comprises an upper clamping arm (2041), an upper clamping bending piece (2042) and an upper clamping bearing (2043); the upper clamping bending piece (2042) is fixedly mounted on one end of the upper clamping arm (2041), the upper clamping bearing (2043) is rotatably mounted on the other end of the upper clamping arm (2041), and the upper clamping bearing (2043) contacts an inclined surface of a trapezoidal protrusion of the occlusal track plate (203); the lower clamping member comprises a lower clamping arm (2051), a lower clamping bending piece (2052) and a lower clamping bearing (2053); the lower clamping bending piece (2052) is fixedly mounted on one end of the lower clamping arm (2051), the lower clamping bearing (2053) is rotatably mounted on the other end of the lower clamping arm (2051), and the lower clamping bearing (2053) contacts another inclined surface of the trapezoidal protrusion of the occlusal track plate (203).

10. A track-type transport and positioning structure for flexible sheet products according to claim 9, characterized in that: The fourth transport hand (24) comprises a second type of transport shaft and left and right driving motors for driving the second type of transport shaft to run on the transport hand track (2); a second transport assembly is arranged on the second type of transport shaft; the second transport assembly comprises a second base (241); a hook claw electric cylinder (242) and a push rod electric cylinder (243) are arranged side by side on the second base (241); the hook claw electric cylinder (242) is connected to a hook claw (2422) via a hook claw arm (2421); and the push rod electric cylinder (243) is connected to a push rod (2432) via a push rod arm (2431).

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