A kind of leather shell blank positioning silk printing glue mechanism

Abstract

The embodiment of the present application discloses a leather shell blank positioning and screen printing glue mechanism, which comprises a frame body, a leather shell storage mechanism, a 180-degree overturning material taking mechanism, a leather shell positioning mechanism, a connecting rod material taking mechanism, a four-station intermittent 90-degree rotating mechanism, a screen printing glue mechanism and a transfer and drying channel clamping mechanism. The leather shell storage mechanism is arranged on the left side above the frame body, the 180-degree overturning material taking mechanism is arranged below the leather shell storage mechanism, the leather shell positioning mechanism is arranged below the 180-degree overturning material taking mechanism, the two connecting rod material taking mechanisms are respectively arranged on the left and right sides of the four-station intermittent 90-degree rotating material conveying mechanism, wherein one of the left side is arranged on the right side of the leather shell positioning mechanism, the four-station intermittent 90-degree rotating mechanism is arranged between the two connecting rod material taking mechanisms and below the screen printing glue mechanism, and the transfer and drying channel clamping mechanism is arranged on the right side of the connecting rod material taking mechanism. The present application can realize the functions of automatic material taking, feeding and screen printing glue, and has high product precision.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of cigarette case assembling equipment, in particular to a leather shell blank positioning silk printing and gluing mechanism. BACKGROUND

[0002] Cigarette case (book type case) products have high precision requirements, and most manufacturers currently produce them by using semi-automatic glue brushing machines and manual assembly. There is no special assembling equipment for cigarette cases (book type cases) on the market, and only a few manufacturers purchase traditional book type case assembling machines for production. However, there are several problems in producing cigarette cases (book type cases) by using book type case assembling machines: 1. low assembling precision; 2. using hot melt glue for bonding, which is not resistant to high and low temperatures; and 3. the assembled finished product box body will be scratched to varying degrees, affecting the quality. Therefore, the present application decides to develop a new product to solve the above problems. SUMMARY

[0003] The present application aims to provide a leather shell blank positioning silk printing and gluing mechanism to solve the problems in the background art.

[0004] To achieve the above-mentioned purpose, the present application provides the following technical solutions:

[0005] A leather shell blank positioning silk printing and gluing mechanism, comprising:

[0006] A frame body for installing various components of the leather shell blank positioning silk printing and gluing mechanism;

[0007] A leather shell storage mechanism arranged on the left side above the frame body, which is provided with two left and right clamping baffles;

[0008] The 180° turnover taking mechanism is arranged below the leather shell storage mechanism, and comprises a chain, linear guides, a connecting plate, a rotating shaft fixing plate, eccentric bearing swing rods, a tension spring, rotating bearing seats, a rotating shaft, a suction disc fixing frame, a vacuum suction disc and an angle guide plate.

[0009] The leather shell positioning mechanism is arranged below the 180° turnover taking mechanism, and comprises a positioning plate, which is provided with a limiting plate and a scale.

[0010] The connecting rod material taking mechanism is provided with two connecting rod material taking mechanisms which are respectively arranged on the left and right sides of the four-station intermittent 90° rotating material conveying mechanism, and one of the connecting rod material taking mechanisms arranged on the left side is arranged on the right side of the shell positioning mechanism and comprises a vacuum suction disc frame, an angle positioning shaft, a linear bearing, an angle positioning bearing seat, an arm plate, a fixed shaft, a fixed bearing seat, a connecting rod joint bearing, an eccentric rotating disc, a chain wheel, a power shaft and a power bearing seat; the arm plate is provided with two blocks arranged side by side, and the two ends of the arm plate are respectively hinged with the angle positioning shaft and the fixed shaft, and the end of the arm plate close to the fixed shaft is further hinged with the connecting rod joint bearing; the angle positioning shaft is fixed with the vacuum suction disc frame, and one end of the angle positioning shaft is further hinged with the linear bearing; one end of the linear bearing is hinged with the suction disc frame rotating shaft, and the other end of the linear bearing is hinged with the angle positioning bearing seat; the two ends of the fixed shaft are hinged with the fixed bearing seat; one end of the connecting rod joint bearing is hinged with the eccentric rotating disc; the eccentric rotating disc is fixed on one end of the power shaft; the chain wheel is fixed on the middle part of the power shaft; the power shaft is hinged with the power bearing seat; the linear bearing can rotate around the angle positioning bearing seat; a plurality of through holes are arranged on the arm plate to adjust the angle range of the angle positioning shaft rotating around the angle positioning bearing seat; the chain wheel drives the eccentric rotating disc to rotate with the power shaft, the connecting rod joint bearing and the arm plate swing in the rotating direction, and the angle positioning shaft makes 0-90° reciprocating rotary motion relative to the angle positioning bearing seat due to the limitation of the linear bearing, so that the vacuum suction disc frame makes 0-90° reciprocating rotary motion relative to the angle positioning bearing seat to complete the material taking and feeding action.

[0011] The four-position intermittent 90° rotating mechanism is arranged between the two connecting rod material taking mechanisms and below the silk screen printing glue applying mechanism, and comprises a rotating shaft, a suction disc holder, a table plate, a fixed bearing, an air slip ring, a servo motor, a belt, a positioning cylinder, a bolt and a positioning disc. The suction disc holder is a frame body formed by four walls, and a plurality of suction discs are fixed on the four walls in the radial direction. The table plate covers the four walls of the suction disc holder, and a plurality of through holes for fixing the suction discs are arranged on the table plate corresponding to the positions of the suction discs. The rotating shaft is provided with the fixed bearing at both ends, and the front end of the rotating shaft is further provided with the air slip ring, the positioning cylinder and the bolt. The rear end of the rotating shaft is connected with the belt. The other end of the belt is connected with a synchronous wheel. The center of the synchronous wheel is connected with the servo motor. The bolt is connected to one end of the positioning cylinder, and the positioning cylinder is fixed to the fixed bearing at the front end of the rotating shaft. The positioning disc is fixed to the front end of the rotating shaft, and is provided with four symmetrical axial positioning holes on the upper, lower, left and right sides. The positioning holes correspond to the bolt, and when the positioning disc rotates 90°, 180°, 270° or 360° around the rotating shaft, the bolt can be inserted into the positioning hole after the cylinder is extended. When the synchronous wheel is rotated by the servo motor, the rotating shaft is driven to rotate by the belt, and the suction disc holder and the table plate are rotated by 90°, and then the servo motor stops. The positioning bolt mechanism is immediately positioned. Specifically, the positioning cylinder is extended to make the bolt inserted into the positioning hole on the positioning disc for positioning.

[0012] The silk screen printing glue applying mechanism comprises a linear module, a cylinder, a scraper, a silk screen plate, a servo motor, a ball screw, a first linear guide rail and a second linear guide rail. The silk screen plate is arranged horizontally. The linear module is arranged above the front side of the silk screen plate. The first linear guide rail is perpendicular to the linear module. The ball screw is fixed to the linear module. The second linear guide rail is arranged horizontally behind the linear module. The cylinder is connected to the second linear guide rail, and the upper end of the cylinder is connected to an air pipe, and the lower end of the cylinder is connected to the scraper. One end of the air pipe is connected to the cylinder, and the other end of the air pipe is connected to a nylon tow chain with an internal air path. The servo motor is fixed to the linear module, and the servo motor can drive the cylinder to slide along the second linear guide rail through the belt. The ball screw can drive the linear module to move up and down along the first linear guide rail to adjust the distance between the linear module and the silk screen plate. The nylon tow chain with an internal air path can be regularly curled to provide the cylinder with a gas source adaptively when the cylinder moves. When the cylinder gets the gas, the scraper moves down to tightly contact the silk screen plate. The servo motor drives the cylinder to move left and right along the second linear guide rail through the belt to complete the glue brushing action. When the glue brushing is completed, the cylinder loses the gas, the scraper rises, and the servo motor drives the cylinder to slide along the second linear guide rail to reset.

[0013] The transfer oven gripper mechanism is arranged right to the right connecting rod material taking mechanism, and comprises a linear guide rail, a linear bearing arranged on the linear guide rail, a vacuum chuck frame arranged on the linear bearing, a connecting rod connected to the linear bearing, and a servo motor connected to the other end of the connecting rod, which is used to receive the leather material with completed screen printing from the connecting rod material taking mechanism and further send it to the next process procedure.

[0014] Further, the 180° turnover material taking mechanism and the two connecting rod material taking mechanisms are linked together and controlled by one servo motor.

[0015] When the servo motor is started, it rotates 180°, the 180° turnover material taking mechanism rises to the bottom of the leather shell storage, and then the vacuum is opened to suck the first leather shell at the bottom. When the vacuum pressure switch detects that the negative pressure reaches the set value, the servo motor reverses, and at the same time, the 180° turnover material taking mechanism descends and turns over 180°, so that the leather shell enters the leather shell positioning mechanism for positioning. Then, the left connecting rod material taking mechanism opens the vacuum to suck the leather shell, and rotates 90° to paste the leather shell into the four-station intermittent 90° rotating mechanism. After contacting the platform, the vacuum is opened to suck the leather shell, and the left connecting rod material taking mechanism is disconnected. The four-station intermittent 90° rotating mechanism rotates 90° clockwise and is positioned. The screen printing mechanism descends, the glue brushing cylinder descends and the module moves to brush glue. After the glue brushing is completed, the screen printing mechanism rises, and at the same time, the left connecting rod material taking mechanism also pastes another leather shell to the left side of the four-station intermittent 90° rotating mechanism. The four-station intermittent 90° rotating mechanism rotates 90° clockwise and is positioned. The upper side is brushed by the screen printing mechanism, and the leather shell with brushed glue on the right side is sucked by the right connecting rod material taking mechanism and placed on the vacuum chuck frame of the transfer oven gripper mechanism. The servo motor of the transfer oven gripper mechanism rotates to send the leather shell to the next process procedure.

[0016] The present application has the following advantages:

[0017] The present application can realize the functions of automatic material taking, feeding and screen printing, and has high product precision. The 180° turnover material taking mechanism and the two connecting rod material taking mechanisms are linked together and controlled by one servo motor, so that the action process can be more coordinated. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 is a structural schematic diagram of an embodiment of the present application;

[0019] Figure 2 is a structural schematic diagram of a 180° turnover material taking mechanism of an embodiment of the present application;

[0020] Figure 3 is a structural schematic diagram of a leather shell positioning mechanism of an embodiment of the present application;

[0021] Figure 4is a structure schematic view of a connecting rod material taking mechanism of an embodiment of the present application;

[0022] Figure 5 is another direction structure schematic view of a connecting rod material taking mechanism of an embodiment of the present application;

[0023] Figure 6 is a structure schematic view of a four-station intermittent 90° rotating mechanism of an embodiment of the present application;

[0024] Figure 7 is a structure schematic view of a four-station intermittent 90° rotating mechanism of an embodiment of the present application;

[0025] Figure 8 is a structure schematic view of a four-station intermittent 90° rotating mechanism of an embodiment of the present application;

[0026] Figure 9 is a structure schematic view of a silk printing glue mechanism of an embodiment of the present application;

[0027] Figure 10 is another direction structure schematic view of a silk printing glue mechanism of an embodiment of the present application;

[0028] Figure 11 is a structure schematic view of a transfer oven clamp hand mechanism of an embodiment of the present application;

[0029] Figure 12 is another direction structure schematic view of a transfer oven clamp hand mechanism of an embodiment of the present application;

[0030] The figure mark is explained as follows:

[0031] 1. frame

[0032] 2. leather shell storage mechanism

[0033] 3. 180° overturning material taking mechanism

[0034] 301. chain

[0035] 302. linear guide rail

[0036] 303. connecting plate

[0037] 304. rotating shaft fixing plate

[0038] 305. eccentric bearing swing lever

[0039] 306. tension spring

[0040] 307. rotating bearing seat

[0041] 308. rotating shaft

[0042] 309. suction cup fixing frame

[0043] 310. vacuum chuck

[0044] 311. angle guide plate

[0045] 3111. arc-shaped groove

[0046] 4. leather shell positioning mechanism

[0047] 401. positioning plate

[0048] 402. limiting plate

[0049] 403. scale

[0050] 5. connecting rod material taking mechanism

[0051] 501. vacuum chuck frame

[0052] 502. angle positioning shaft

[0053] 503. linear bearing

[0054] 504. angle positioning bearing seat

[0055] 505. arm plate

[0056] 5501. through hole

[0057] 506. fixed shaft

[0058] 507. fixed bearing seat

[0059] 508. connecting rod joint bearing

[0060] 509. eccentric rotating disc

[0061] 510. sprocket

[0062] 511. power shaft

[0063] 512. power bearing seat

[0064] 6. four-station intermittent 90° rotating mechanism

[0065] 601. rotating shaft

[0066] 602. chuck frame

[0067] 603. table plate

[0068] 604. fixed bearing

[0069] 605. air slip ring

[0070] 606. servo motor

[0071] 607. belt

[0072] 608. Positioning cylinder

[0073] 609. Bolt

[0074] 610. Positioning disc

[0075] 7. Screen printing glue mechanism

[0076] 701. Linear module

[0077] 702. Cylinder

[0078] 7201. Air pipe

[0079] 7202. Nylon drag chain

[0080] 703. Scraper

[0081] 704. Screen printing screen plate

[0082] 705. Servo motor

[0083] 706. Ball screw

[0084] 707. First linear guide rail

[0085] 708. Second linear guide rail

[0086] 8. Transfer oven clamp mechanism

[0087] 801. Linear guide rail

[0088] 802. Linear bearing

[0089] 803. Vacuum chuck rack

[0090] 804. Connecting rod

[0091] 805. Servo motor DETAILED DESCRIPTION

[0092] 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, and the present application will be further described in detail below in combination with the drawings and specific embodiments.

[0093] If there is a directional indication in the embodiments of the present application (such as up, down, left, right, front, back, etc.), it is only used to explain the relative position relationship, motion condition, etc. between components in a certain specific posture (as shown in the drawings), and if the specific posture changes, the directional indication will also change accordingly.

[0094] In addition, in the present application, if the description involves "first", "second" and the like, it is only for the purpose of description, and cannot be understood as indicating or implying the relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first", "second" can be explicitly or implicitly included at least one of the features.

[0095] Please refer to Figures 1-12 A leather shell blank positioning and screen printing glue mechanism, comprising:

[0096] A frame body for mounting each component of the leather shell blank positioning and screen printing glue mechanism;

[0097] A leather shell storage mechanism is provided on the left side above the frame body, and two clamping baffles are provided thereon;

[0098] A 180° flip material taking mechanism is provided below the leather shell storage mechanism, which comprises a chain, a linear guide rail, a connecting plate, a rotating shaft fixing plate, an eccentric bearing swing rod, a tension spring, a rotary bearing seat, a rotating shaft, a suction cup fixing frame, a vacuum suction cup and an angle guide plate; the linear guide rail has two vertical and side-by-side arrangements; the connecting plate is provided on the linear guide rail; the rotating shaft fixing plate has two blocks, which are connected vertically and horizontally to the two ends of the connecting plate; the eccentric bearing swing rod has two, which are fixed in the horizontal extension direction of the connecting plate; the rotary bearing seat has two, which are symmetrically provided at the end of the rotating shaft fixing plate; the rotating shaft is hinged to the two rotary bearing seats, and the two ends thereof are respectively fixed with eccentric wheels; the tension spring is connected to one end of the eccentric bearing swing rod and one end of the rotating shaft; the vacuum suction cup is fixed on the suction cup fixing frame; the suction cup fixing frame is fixed on the rotating shaft; the angle guide plate is vertically opposite the eccentric wheel, and the middle part is provided with an arc-shaped groove; one end of the chain is fixed to the rotating shaft fixing plate; one end of the rotating shaft fixing plate is provided with a through hole corresponding to the rotary bearing seat; the servo motor drives the rotating shaft fixing plate to rise and fall through the chain, the connecting plate rises and falls along the linear guide rail, and the rotating shaft rises and falls accordingly; when the eccentric wheel moves to the arc-shaped groove on the angle guide plate, the tension spring tightens the eccentric wheel to tightly contact the angle guide plate, and the suction cup fixing frame is turned over by 180° with the rotating shaft;

[0099] A leather shell positioning mechanism is provided below the 180° flip material taking mechanism, which comprises a positioning plate provided with a limiting plate and a scale on the positioning plate to position the leather material sent by the 180° flip material taking mechanism;

[0100] The connecting rod material taking mechanism is provided with two connecting rod material taking mechanisms which are respectively arranged on the left and right sides of the four-station intermittent 90° rotating material conveying mechanism, and one of the connecting rod material taking mechanisms arranged on the left side is arranged on the right side of the shell positioning mechanism and comprises a vacuum suction disc frame, an angle positioning shaft, a linear bearing, an angle positioning bearing seat, an arm plate, a fixed shaft, a fixed bearing seat, a connecting rod joint bearing, an eccentric rotating disc, a chain wheel, a power shaft and a power bearing seat; the arm plate is provided with two arm plates arranged side by side, and the two ends of the arm plate are respectively hinged with the angle positioning shaft and the fixed shaft, and the end of the arm plate close to the fixed shaft is further hinged with the connecting rod joint bearing; the angle positioning shaft is fixed with the vacuum suction disc frame, and one end of the angle positioning shaft is further hinged with the linear bearing; one end of the linear bearing is hinged with the suction disc frame rotating shaft, and the other end of the linear bearing is hinged with the angle positioning bearing seat; the two ends of the fixed shaft are hinged with the fixed bearing seat; one end of the connecting rod joint bearing is hinged with the eccentric rotating disc; the eccentric rotating disc is fixed on one end of the power shaft; the chain wheel is fixed on the middle part of the power shaft; the power shaft is hinged with the power bearing seat; the linear bearing can rotate around the angle positioning bearing seat; a plurality of through holes are arranged on the arm plate to adjust the angle range of the angle positioning shaft rotating around the angle positioning bearing seat; the chain wheel drives the eccentric rotating disc to rotate with the power shaft, the connecting rod joint bearing and the arm plate swing in the rotating direction, and the angle positioning shaft makes 0-90° reciprocating rotary motion relative to the angle positioning bearing seat due to the limitation of the linear bearing, so that the vacuum suction disc frame makes 0-90° reciprocating rotary motion relative to the angle positioning bearing seat to complete the material taking and feeding action.

[0101] The four-position intermittent 90° rotating mechanism is arranged between the two connecting rod material taking mechanisms and below the silk screen printing glue applying mechanism, and comprises a rotating shaft, a suction disc holder, a table plate, a fixed bearing, an air slip ring, a servo motor, a belt, a positioning cylinder, a bolt and a positioning disc. The suction disc holder is a frame body formed by four walls, and a plurality of suction discs are fixed on the four walls in the radial direction. The table plate covers the four walls of the suction disc holder, and a plurality of through holes for fixing the suction discs are arranged on the table plate corresponding to the positions of the suction discs. The rotating shaft is provided with the fixed bearing at both ends, and the front end of the rotating shaft is further provided with the air slip ring, the positioning cylinder and the bolt. The rear end of the rotating shaft is connected with the belt. The other end of the belt is connected with a synchronous wheel. The center of the synchronous wheel is connected with the servo motor. The bolt is connected to one end of the positioning cylinder, and the positioning cylinder is fixed to the fixed bearing at the front end of the rotating shaft. The positioning disc is fixed to the front end of the rotating shaft, and is provided with four symmetrical axial positioning holes on the upper, lower, left and right sides. The positioning holes correspond to the bolt, and when the positioning disc rotates 90°, 180°, 270° or 360° around the rotating shaft, the bolt can be inserted into the positioning hole after the cylinder is extended. When the synchronous wheel is rotated by the servo motor, the rotating shaft is driven to rotate by the belt, and the suction disc holder and the table plate are rotated by 90°, and then the servo motor stops. The positioning bolt mechanism is immediately positioned. Specifically, the positioning cylinder is extended to make the bolt inserted into the positioning hole on the positioning disc for positioning.

[0102] The silk screen printing glue applying mechanism comprises a linear module, a cylinder, a scraper, a silk screen plate, a servo motor, a ball screw, a first linear guide rail and a second linear guide rail. The silk screen plate is arranged horizontally. The linear module is arranged above the front side of the silk screen plate. The first linear guide rail is perpendicular to the linear module. The ball screw is fixed to the linear module. The second linear guide rail is arranged horizontally behind the linear module. The cylinder is connected to the second linear guide rail, and the upper end of the cylinder is connected to an air pipe, and the lower end of the cylinder is connected to the scraper. One end of the air pipe is connected to the cylinder, and the other end of the air pipe is connected to a nylon tow chain with an internal air path. The servo motor is fixed to the linear module, and the servo motor can drive the cylinder to slide along the second linear guide rail through the belt. The ball screw can drive the linear module to move up and down along the first linear guide rail to adjust the distance between the linear module and the silk screen plate. The nylon tow chain with an internal air path can be regularly curled to provide the cylinder with a gas source adaptively when the cylinder moves. When the cylinder gets the gas, the scraper moves down to tightly contact the silk screen plate. The servo motor drives the cylinder to move left and right along the second linear guide rail through the belt to complete the glue brushing action. When the glue brushing is completed, the cylinder loses the gas, the scraper rises, and the servo motor drives the cylinder to slide along the second linear guide rail to reset.

[0103] The transfer oven gripper mechanism is arranged right to the right connecting rod material taking mechanism, and comprises a linear guide rail, a linear bearing arranged on the linear guide rail, a vacuum chuck frame arranged on the linear bearing, a connecting rod connected to the linear bearing, and a servo motor connected to the other end of the connecting rod. The servo motor is used to receive the leather material with completed screen printing from the connecting rod material taking mechanism and further send the leather material to the next process procedure.

[0104] As an embodiment, the 180° overturning material taking mechanism and the two connecting rod material taking mechanisms are linked together, and the three can be controlled by one servo motor.

[0105] When the servo motor is started, it rotates 180°, the 180° overturning material taking mechanism rises to the bottom of the leather shell storage, and then the vacuum is opened to suck the first leather shell at the bottom. After the vacuum pressure switch detects that the negative pressure reaches the set value, the servo motor reverses, and at the same time, the 180° overturning material taking mechanism descends and overturns 180°, so that the leather shell enters the leather shell positioning mechanism for positioning. Then, the left connecting rod material taking mechanism opens the vacuum to suck the leather shell, and rotates 90° to paste the leather shell into the four-station intermittent 90° rotating mechanism. After contacting the platform, the vacuum is opened to suck the leather shell, the left connecting rod material taking mechanism is disconnected, the four-station intermittent 90° rotating mechanism rotates 90° clockwise and is positioned, the screen printing mechanism descends, the glue brushing cylinder descends and the module moves to brush glue. After the glue brushing is completed, the screen printing mechanism rises, and at the same time, the left connecting rod material taking mechanism also pastes another leather shell to the left side of the four-station intermittent 90° rotating mechanism. The four-station intermittent 90° rotating mechanism rotates 90° clockwise and is positioned, and the upper side is brushed by the screen printing mechanism. The leather shell with brushed glue on the right side is sucked by the right connecting rod material taking mechanism and placed on the vacuum chuck frame of the transfer oven gripper mechanism. The servo motor of the transfer oven gripper mechanism rotates to send the leather shell to the next process procedure.

[0106] The present application can realize the functions of automatic material taking, feeding and screen printing, and has high product precision. The 180° overturning material taking mechanism and the two connecting rod material taking mechanisms are linked together, and the three can be controlled by one servo motor, so that the action process can be more coordinated.

[0107] Although the embodiments of the present application have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made without departing from the principles and spirit of the present application, and the scope of the present application is defined by the appended claims and their equivalents.

Claims

1. A method for printing adhesive on a leather shell blank positioning yarn, characterized in that, The utility model relates to a kind of leather printing machine, including: Frame, the frame is used to install the components of leather blank positioning silk printing mechanism; Leather storage mechanism, the leather storage mechanism is located above left side of frame, and it is equipped with the left and right two baffles that can be clamped; 180 ° overturning material taking mechanism, the 180 ° overturning material taking mechanism is located below leather storage mechanism, and it includes: chain, linear guide rail, connecting plate, rotating shaft fixed plate, eccentric bearing swing bar, tension spring, rotary bearing seat, rotating shaft, suction cup fixed frame, vacuum suction cup and angle guide plate;The linear guide rail has two, and is vertically arranged side by side;The connecting plate is located on linear guide rail;The rotating shaft fixed plate has two, and is horizontally connected to the two ends of connecting plate vertically;The eccentric bearing swing bar has two, and is fixed in the horizontal extension direction of connecting plate respectively;The rotary bearing seat has two, and is symmetrically arranged in the end of rotating shaft fixed plate;The rotating shaft is hinged to two rotary bearing seats, and the two ends are fixed with eccentric wheel respectively;The tension spring is connected to one end of eccentric bearing swing bar and one end of rotating shaft;The vacuum suction cup is fixed on suction cup fixed frame;The suction cup fixed frame is fixed on rotating shaft;The angle guide plate is vertically arranged opposite eccentric wheel, and arc-shaped groove is arranged in the middle;One end of chain is fixed to rotating shaft fixed plate;One end of rotating shaft fixed plate is provided with through hole corresponding to rotary bearing seat;Servo motor drives rotating shaft fixed plate to lift by chain, connecting plate lifts along linear guide rail, rotating shaft lifts along with it, when eccentric wheel moves to arc-shaped groove on angle guide plate, tension spring tightens eccentric wheel and sticks to angle guide plate, suction cup fixed frame occurs 180 ° overturning along with rotating shaft; Leather positioning mechanism, the leather positioning mechanism is located below 180 ° overturning material taking mechanism, and it includes positioning plate, and the positioning plate is equipped with limit plate and scale, and is positioned for leather material sent by 180 ° overturning material taking mechanism; The connecting rod material taking mechanism is provided with two connecting rod material taking mechanisms which are respectively arranged on the left and right sides of the four-station intermittent 90° rotating material conveying mechanism, and one of the connecting rod material taking mechanisms is arranged on the right side of the leather shell positioning mechanism and comprises a vacuum suction disc frame, an angle positioning shaft, a linear bearing, an angle positioning bearing seat, an arm plate, a fixing shaft, a fixing bearing seat, a connecting rod joint bearing, an eccentric rotating disc, a chain wheel, a power shaft and a power bearing seat. The four-station intermittent 90° rotating mechanism is arranged between the two connecting rod material taking mechanisms and below the silk printing rubber material conveying mechanism, and comprises a rotating shaft, a suction disc frame, a table plate, a fixing bearing, an air slip ring, a servo motor, a belt, a positioning cylinder, a bolt and a positioning disc. The suction disc frame is a frame body which is formed by four walls and is fixed on the rotating shaft, and a plurality of suction discs are fixed on the four walls in the radial direction. The table plate covers the four walls of the suction disc frame and is provided with a plurality of through holes for reinforcing the fixation of the suction discs at positions corresponding to the suction discs. The rotating shaft is provided with the fixing bearing at both ends, and the front end of the rotating shaft is further provided with the air slip ring, the positioning cylinder and the bolt. The rear end of the rotating shaft is connected with the belt. The other end of the belt is connected with a synchronous wheel. The center of the synchronous wheel is connected with the servo motor. The bolt is connected to one end of the positioning cylinder, and the positioning cylinder is fixed on the fixing bearing at the front end of the rotating shaft. The positioning disc is fixed on the front end of the rotating shaft and is provided with four symmetrical axial positioning holes in the upper, lower, left and right directions. The positioning holes correspond to the bolt, and when the positioning disc rotates by 90°, 180°, 270° and 360° around the rotating shaft, the bolt can be inserted into the positioning hole after the cylinder is extended. When the synchronous wheel is rotated by the servo motor, the rotating shaft is rotated by the belt transmission, the suction disc frame and the table plate are rotated by 90°, and then the servo motor stops. The positioning bolt mechanism is immediately positioned, specifically, the positioning cylinder is extended to make the bolt inserted into the positioning hole on the positioning disc for positioning. The silk screen printing glue mechanism comprises a linear module, a cylinder, a scraper, a silk screen plate, a servo motor, a ball screw, a first linear guide rail and a second linear guide rail; the silk screen plate is horizontally arranged; the linear module is arranged above the front side of the silk screen plate; the first linear guide rail is vertically fixed on the linear module; the ball screw is fixed on the linear module; the second linear guide rail is horizontally arranged on the rear side of the linear module; the cylinder is connected with the second linear guide rail, the upper end of the cylinder is connected with an air pipe, and the lower end of the cylinder is connected with the scraper; one end of the air pipe is connected with the cylinder, and the other end of the air pipe is connected with a nylon tow chain with an internal air path; the servo motor is fixed on the linear module, and the servo motor can drive the cylinder to slide along the second linear guide rail through a belt; the ball screw can drive the linear module to move up and down along the first linear guide rail, so that the distance between the linear module and the silk screen plate is adjusted; the nylon tow chain with the internal air path can be regularly curled to adaptively provide the cylinder with an air source when the cylinder moves; when the cylinder is supplied with air, the scraper moves downward and tightly contacts the silk screen plate; the servo motor drives the cylinder to move left and right along the second linear guide rail through the belt to complete the glue brushing action; when the glue brushing is completed, the cylinder is not supplied with air, the scraper moves upward, and the servo motor drives the cylinder to slide along the second linear guide rail to reset. The transfer and conveying oven clamp hand mechanism is arranged on the right side of the right connecting rod taking mechanism, and comprises a linear guide rail, a linear bearing arranged on the linear guide rail, a vacuum chuck frame arranged on the linear bearing, a connecting rod connected with the linear bearing and a servo motor connected with the other end of the connecting rod, which is used to receive the leather material with completed silk screen printing glue sent by the connecting rod taking mechanism and further send the leather material to the next process procedure. When starting, the servo motor rotates forward by 180°, the 180° turnover taking mechanism rises to the bottom of the leather shell storage, then the vacuum is opened to suck the first leather shell at the bottom, after the vacuum pressure switch detects that the negative pressure reaches the set value, the servo motor reverses, the 180° turnover taking mechanism descends and turns over by 180° at the same time, so that the leather shell enters the leather shell positioning mechanism for positioning, then the left connecting rod taking mechanism opens the vacuum to suck the leather shell, and rotates the leather shell by 90° to be attached to the four-station intermittent 90° rotating mechanism, the vacuum is opened to suck the leather shell after contacting the platform, the left connecting rod taking mechanism is disconnected from the vacuum, the four-station intermittent 90° rotating mechanism rotates clockwise by 90° and is positioned, the silk screen printing glue mechanism descends, the glue brushing cylinder descends and the module moves to brush glue, after the glue brushing is completed, the silk screen printing glue mechanism rises, and at the same time, the left connecting rod taking mechanism also attaches another leather shell to the left side surface of the four-station intermittent 90° rotating mechanism, the four-station intermittent 90° rotating mechanism rotates clockwise by 90° and is positioned, and the upper side surface thereof is brushed with glue by the silk screen printing glue mechanism, and the leather shell with brushed glue on the right side surface thereof is sucked by the right connecting rod taking mechanism and is placed on the vacuum chuck frame of the transfer and conveying oven clamp hand mechanism, and the servo motor of the transfer and conveying oven clamp hand mechanism rotates to send the leather shell to the next process procedure.

2. The pelt shell blanking and positioning silk printing glue setting mechanism of claim 1, wherein, The 180° turnover taking mechanism and the two connecting rod taking mechanisms are linked, and the three are controlled by one servo motor.

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