Automatic material taking and pressing device for laminated PP sheets

Abstract

The invention discloses an automatic material taking and pressing device for laminated PP sheets. The automatic material taking and pressing device comprises a rack, the plate placing platform is used for placing the laminated PP sheets for one-by-one material taking, the bottom surface of the plate placing platform is connected with a lifting device, and the plate placing platform can be continuously lifted, so that the uppermost laminated PP sheet is kept at a material taking reference position; the at least two groups of press holders are provided with press plates, and can provide actions of vertical push-up, transverse push-in and vertical pull-down, so that the press plates can press the laminated PP sheets; the positioning bodies are correspondingly arranged on the periphery of the pressing device, and the side faces of the positioning bodies abut against the laminated PP sheets so that the laminated PP sheets can be positioned on the plate placing platform; the controller is electrically connected with the lifting device and the displacement mechanism of the pressing device so as to control the actuation time of the lifting device and the displacement mechanism and drive related instruction actions; therefore, through the lifting device and the pressing plate, the effects of effectively pressing and holding the laminated PP sheets and further smoothly taking the sheets one by one can be achieved, and meanwhile, the glass fiber separation phenomenon on the side edges of the laminated PP sheets is prevented by applying the guiding and positioning of the positioning body.

Description

Technical Field

[0001] The present invention relates to a sheet material picking device, especially an automatic picking and pressing device for laminated PP sheets, which uses a positioning body to guide and position and a pressing plate during the picking process to effectively press the laminated PP sheets, thereby enabling smooth picking of each sheet and preventing the glass fiber from detaching. Background Art

[0002] Printed circuit boards (PCBs) are indispensable materials in electronic products, and multi-layer printed circuit boards have become the mainstream in the development of the electronics industry; multi-layer boards are formed by laminating inner circuit boards with circuit patterns and upper and lower laminated PP sheets as insulators, and then thermally pressing them.

[0003] PP sheets (Prepreg) are composed of a glass fiber non-woven fabric and epoxy resin. During the production process, the rolled glass fiber non-woven fabric needs to be conveyed by rollers, and epoxy resin is coated on its surface, and finally cut into sheets to become insulating sheet materials; since the PP sheets will generate static electricity due to friction during transportation, and the static electricity-carrying laminated PP sheets will cause interlayer adhesion, it is not conducive to the picking operation of each laminated PP sheet during the pre-lamination process of the above-mentioned printed circuit board (PCB).

[0004] The inventor of the present invention developed an invention patent for "Method and Device for Separating Electrostatically Charged Laminated Insulating Sheet Materials" to overcome the problem of picking each laminated PP sheet. Its main feature is to separate the uppermost PP sheet from the laminated PP sheets through steps of adsorbing one by one, turning up both sides, eliminating the interlayer electrostatic adsorption force, and pressing the lower laminated PP sheets; however, it is found that during the process of guiding and positioning and pressing operations in the above-mentioned one-by-one picking method, the up-and-down repeated displacement actions of the pressing mechanism will cause the glass fiber on the side edge of the laminated PP sheet to detach due to friction; therefore, how to improve the non-detachment of the glass fiber during the picking process of the laminated PP sheet has become a problem that the inventor of the present invention needs to solve. Summary of the Invention

[0005] The main technical problem to be solved by the present invention is to overcome the above-mentioned defects existing in the prior art, and to provide an automatic picking and pressing device for laminated PP sheets, which can effectively press the laminated PP sheets, thereby enabling smooth picking of each sheet, and at the same time preventing the glass fiber from detaching from its side edge.

[0006] The technical solution adopted by the present invention to solve its technical problems is:

[0007] An automatic material taking and pressing device for laminated PP sheets, comprising: a frame; a placing platform for placing laminated PP sheets for taking materials one by one. At least one penetrating transverse groove is provided on each of the left and right sides of the placing platform, and the bottom surface thereof is connected and fixed to a lifting device on the frame. The lifting device can continuously lift the placing platform so that the uppermost laminated PP sheet is kept at the material taking reference position to achieve the effect of positioning and taking materials; at least two groups of pressing devices are arranged in the transverse grooves of the placing platform and fixed on the frame. Each pressing device is respectively provided with a vertical displacement mechanism, a transverse displacement mechanism and a pressing plate, which can respectively provide the pressing device with actions of vertical pushing, transverse advancing and vertical pulling during the material taking process, so that the pressing plate can press the laminated PP sheets to facilitate the operation of taking materials one by one; several positioning bodies are respectively arranged corresponding to the peripheries of the pressing devices, and one side surface of the positioning body can abut against the side edge of the laminated PP sheet, so that the laminated PP sheet can be positioned on the placing platform, and the glass fiber at the side edge of the laminated PP sheet can be prevented from detaching during the pressing process; a controller is arranged on the frame and electrically connected to the lifting device of the placing platform, the vertical displacement mechanism and the transverse displacement mechanism of the pressing device to control the actuation timing and drive the relevant command actions.

[0008] According to the above characteristics, in the present invention, the lifting device of the placing platform includes a servo motor to connect an active pulley, four screw rods are respectively connected to nuts and passive pulleys, and the top ends of the individual screw rods are fixedly connected to the corners of the placing platform, a timing belt surrounds the active pulley and the passive pulley; when the servo motor drives the active pulley, the timing belt will drive the passive pulley and the nut to rotate, and then the four screw rods will be respectively driven by the nut to perform vertical displacement, thereby synchronously lifting the placing platform.

[0009] According to the above characteristics, the present invention further includes an idler pulley, pivotally arranged on the frame adjacent to the side edge of the active pulley, and the distance from the active pulley can be adjusted as needed, and the timing belt must first bypass the idler pulley before surrounding the passive pulley after surrounding the active pulley to maintain the required tension of the timing belt.

[0010] According to the above characteristics, in the present invention, the vertical displacement mechanism has a slide rail, a slide seat and a vertical air cylinder, and the horizontal displacement mechanism has a connecting seat and a horizontal air cylinder; the slide seat is connected to the vertical air cylinder and fixed on the frame, the slide rail is pivotally arranged on one side of the slide seat and can perform vertical displacement relative to the slide seat, and its bottom end is connected to the piston rod of the vertical air cylinder, and its upper end is connected to the connecting seat; the horizontal air cylinder is fixed on the connecting seat, and the piston rod of the horizontal air cylinder is connected to the pressing plate; when taking materials, the piston rod of the vertical air cylinder first vertically pushes up the slide rail and the connecting seat, the piston rod of the horizontal air cylinder then horizontally pushes the pressing plate, and the piston rod of the vertical air cylinder then vertically pulls down the slide rail and the connecting seat, so that the pressing plate will press the stacked PP sheets.

[0011] According to the above characteristics, in the present invention, each of the positioning bodies is of a U-shaped groove structure, the opposite side of the opening abuts against the side edge of the stacked PP sheets, and the positioning bodies are annularly arranged around the slide rail with gaps, so that during the pressing process of the presser, the glass fibers on the side edge of the stacked PP sheets will not be separated between the positioning bodies and the stacked PP sheets due to the vertical displacement of the slide rail.

[0012] According to the above characteristics, the present invention further includes a horizontal telescopic adjustment mechanism, which has a horizontal base, a horizontal core rod, a set of left and right screw sleeves, a set of left and right fixed seats, and two left and right horizontal limiting slide rails; the horizontal base is fixed on the frame, the two horizontal limiting slide rails are symmetrically locked on the left and right sides of the horizontal base respectively, the left and right sides of the horizontal core rod are provided with reverse left and right screw threads, the set of left and right screw sleeves are respectively sleeved on the outer edges of the horizontal core rod at the left and right screw threads, the set of left and right fixed seats are respectively locked on the left and right screw sleeves and are respectively pivotally arranged to slide on the two horizontal limiting slide rails, and the slide seat of the presser and the lower ends of the positioning bodies are respectively locked on the left and right fixed seats; when performing the horizontal positioning adjustment operation, the horizontal core rod can be rotated forward and backward, which will drive the left and right screw sleeves to drive the left and right fixed seats, and then drive the presser and the positioning bodies respectively arranged on the left and right sides of the placing plate platform to move synchronously inward and outward to meet the horizontal width requirement of the stacked PP sheets.

[0013] According to the above characteristics, at least one penetrating longitudinal groove is provided on the front and rear sides of the placing plate platform in the present invention, and at least two guide rods are symmetrically inserted through the longitudinal grooves of the placing plate platform and fixed on the frame to longitudinally support the stacked PP sheets to facilitate the operation of taking materials one by one.

[0014] According to the above characteristics, the present invention further includes a longitudinal telescopic adjustment mechanism, which has a longitudinal base, a longitudinal core rod, a set of front and rear screw sleeves, a set of front and rear fixed seats, and two front and two rear longitudinal limit slide rails; the longitudinal base is fixed on the frame, and the two longitudinal limit slide rails are symmetrically locked on the front and rear sides of the longitudinal base respectively. The two sides of the longitudinal core rod are respectively provided with left and right screw threads in opposite directions, and the front and rear screw sleeves are respectively sleeved on the outer edges of the longitudinal core rod at the left and right screw threads. The front and rear fixed seats are respectively locked on the front and rear screw sleeves and are respectively pivotally arranged to slide on the two longitudinal limit slide rails, and the lower ends of the guide rods are respectively locked on the front and rear fixed seats; when performing the adjustment operation of longitudinal positioning, rotating the longitudinal core rod forward and backward will drive the front and rear screw sleeves to drive the front and rear fixed seats, and then drive the guide rods respectively arranged on the front and rear sides of the placing plate platform to move forward and backward synchronously to meet the longitudinal width requirement of the stacked PP sheets.

[0015] With the above characteristics, the "automatic material taking and pressing device for stacked PP sheets" of the present invention has the following benefits.

[0016] 1. The lifting device drives the passive pulley and the nut to rotate by means of a timing belt, then the four screw rods will be respectively driven by the nut to move vertically, and then continuously lift the placing plate platform synchronously, so that the PP sheets placed on the top layer are kept at a material taking reference position, and thus the effect of accurate positioning for piece-by-piece material taking is achieved.

[0017] 2. The presser is provided with a vertical displacement mechanism, a horizontal displacement mechanism and a pressing plate, which can respectively provide the presser with actions of vertical pushing, horizontal advancing and vertical pulling down during the material taking process, so that the pressing plate can effectively press the stacked PP sheets, and thus the piece-by-piece material taking operation can be carried out smoothly.

[0018] 3. One side of the positioning body can abut against the side edge of the stacked PP sheets, so that the stacked PP sheets can be positioned on the placing plate platform; and the open side of the positioning body is annularly arranged with a gap on the outer edge of the slide rail of the vertical displacement mechanism of the presser, so that during the pressing process of the presser, the glass fiber on the side edge of the stacked PP sheets will not be separated due to the vertical displacement of the slide rail between the positioning body and the stacked PP sheets.

[0019] The present invention also provides a horizontal telescopic adjustment mechanism to connect the positioning body and a longitudinal telescopic adjustment mechanism to connect the guide rod. Then, in response to the requirements of the horizontal width and longitudinal width of the stacked PP sheets, the horizontal telescopic adjustment mechanism and the longitudinal telescopic adjustment mechanism can be actuated, so that the symmetrically arranged positioning body and guide rod move synchronously towards the inner and outer sides; thus achieving the positioning effect of the stacked PP sheets. Description of the Drawings

[0020] The present invention will be further described below with reference to the drawings and embodiments.

[0021] Figure 1 It is a combined perspective view of the automatic material taking and pressing device for the laminated PP sheet of the present invention.

[0022] Figure 2 It is a combined perspective view after removing the plate placing platform of the present invention.

[0023] Figure 3 It is a combined front view after removing the plate placing platform of the present invention.

[0024] Figure 4 It is a combined top view after removing the plate placing platform of the present invention.

[0025] Figure 5 It is a combined perspective view after removing the plate placing platform and the frame of the present invention.

[0026] Figure 6 It is a combined top view after removing the plate placing platform and the frame of the present invention.

[0027] Figure 7 It is a combined perspective view of the lateral adjustment mechanism in the present invention.

[0028] Figure 8 It is a schematic diagram of the lateral width positioning of the plate placing platform in the present invention.

[0029] Figure 9 It is a schematic diagram of the longitudinal width positioning of the plate placing platform in the present invention.

[0030] Figure 10A It is a combined perspective view of the presser displacement mechanism and the positioning body in the present invention.

[0031] Figure 10B It is a partial combined perspective view of the presser displacement mechanism and the positioning body in the present invention.

[0032] Figure 11 It is a sectional view of the structure of the presser displacement mechanism and the positioning body in the present invention.

[0033] Figure 12A It is a schematic diagram of the first actuation of the pressing plate of the presser in the present invention.

[0034] Figure 12B It is a schematic diagram of the second actuation of the pressing plate of the presser in the present invention.

[0035] Description of the reference numerals in the figure:

[0036] 10: Frame

[0037] 20: Plate placing platform

[0038] 21: Lateral groove

[0039] 22: Longitudinal groove

[0040] 30: Lifting device

[0041] 31: Servo motor

[0042] 32: Driving pulley

[0043] 33: Screw rod

[0044] 34: Nut

[0045] 35: Driven pulley

[0046] 36: Timing belt

[0047] 37: Idler pulley

[0048] 40: Clamping device

[0049] 41: Vertical displacement mechanism

[0050] 42: Horizontal displacement mechanism

[0051] 43: Pressing plate

[0052] 431: Fork claw

[0053] 44: Slide rail

[0054] 441: Perforation

[0055] 45: Slide block

[0056] 46: Vertical pneumatic cylinder

[0057] 47: Connecting seat

[0058] 48: Horizontal pneumatic cylinder

[0059] 50: Positioning body

[0060] 51: Accommodating body

[0061] 52: Top surface

[0062] 60: Guide rod

[0063] 70: Horizontal telescopic adjustment mechanism

[0064] 71: Horizontal base

[0065] 72: Horizontal core rod

[0066] 73: Left and right screw sleeves

[0067] 74: Left and right fixing seats

[0068] 75: Horizontal limiting slide rail

[0069] 76: Horizontal adjustment rotating wheel

[0070] 77: Lateral connecting rod

[0071] 78: Helical gear

[0072] 80: Longitudinal telescopic adjustment mechanism

[0073] 81: Longitudinal base

[0074] 82: Longitudinal core rod

[0075] 83: Front and rear screw sleeves

[0076] 84: Front and rear fixing seats

[0077] 85: Longitudinal limiting slide rail

[0078] 86: Longitudinal adjustment rotating wheel

[0079] 100: Automatic material taking and pressing device for laminated PP sheets

[0080] G: Gap

[0081] W1: Lateral width

[0082] W2: Longitudinal width Detailed implementation manners

[0083] First, please refer to Figure 1As shown in the figure, the structure of the automatic material taking and pressing device 100 for laminated PP sheets in the present invention includes: a frame 10; a plate placing platform 20 for placing laminated PP sheets (not shown in the figure) for taking materials one by one. At least one penetrating transverse groove 21 is provided on each of the left and right sides of the plate placing platform 20. In the present invention, two transverse grooves 21 are provided on each of the left and right sides. At least one penetrating longitudinal groove 22 is provided on each of the front and rear sides. In the present invention, two longitudinal grooves 22 are provided on each of the front and rear sides. The bottom surface of the plate placing platform 20 is fixedly connected to a lifting device 30 on the frame 10, and the lifting device 30 can continuously lift the plate placing platform 20 so that the uppermost stacked PP sheet is kept at a material taking reference position to achieve the effect of positioning and taking materials; at least two sets of pressers 40. In the present invention, four sets of pressers 40 are provided and are respectively inserted into the transverse grooves 21 of the plate placing platform 20 and fixed on the frame 10. The presser 40 is provided with a pressing plate 43. During the material taking process, the presser 40 will perform actions of vertical pushing up, horizontal advancing and vertical pulling down, so that the pressing plate 43 can effectively press the laminated PP sheet, and thus the operation of taking materials one by one can be carried out smoothly; several positioning bodies 50. In the present invention, four positioning bodies 50 are provided and are respectively arranged corresponding to the peripheries of the pressers 40. One side surface of the positioning body 50 can abut against the side edge of the laminated PP sheet, so that the laminated PP sheet can be positioned within the transverse width range of the plate placing platform 20, and the glass fiber at the side edge of the laminated PP sheet can be prevented from detaching during the pressing process; at least two guide rods 60. In the present invention, four guide rods 60 are provided and are symmetrically inserted into the longitudinal grooves 22 of the plate placing platform 20 and fixed on the frame 10 for longitudinally holding the laminated PP sheet to facilitate the operation of taking materials one by one; a controller (not shown in the figure) is arranged on the frame 10 and is electrically connected to the lifting device 30 of the plate placing platform 20 and the presser 40 to control the actuation timing and drive relevant command actions.

[0084] The lifting device 30 in the present invention, as Figures 2 to 4 shown, includes a servo motor 31 connected to a driving pulley 32. Four screw rods 33 are respectively connected to nuts 34 and driven pulleys 35, and the top ends of the individual screw rods 33 are fixedly connected to the corners of the plate placing platform 20. A timing belt 36 surrounds the driving pulley 32 and the driven pulley 35; an idler pulley 37 is pivotally arranged on the frame 10 adjacent to the side edge of the driving pulley 32 and can adjust the distance from the driving pulley 32 as needed. And the timing belt 36 must first bypass the idler pulley 37 after surrounding the driving pulley 32 and then surround the driven pulley 35 to keep the proper tension of the timing belt 36; thereby, when the servo motor 31 drives the driving pulley 32, the timing belt 36 will drive the driven pulley 35 and the nut 34 to rotate, and then the four screw rods 33 will be respectively driven by the nuts 34 to move vertically, and thus the plate placing platform 20 will be lifted synchronously.

[0085] Please refer to Figure 7 As shown, the structure of the holder 40 of the present invention includes a vertical displacement mechanism 41, a lateral displacement mechanism 42 and a pressing plate 43. The vertical displacement mechanism 41 has a slide rail 44, a slide block 45 and a vertical air cylinder 46. The lateral displacement mechanism 42 has a connecting seat 47 and a lateral air cylinder 48. The slide block 45 and the vertical air cylinder 46 are fixed on the frame 10. The slide rail 44 is pivotally arranged on one side of the slide block 45 and can perform vertical displacement (X-X axis direction) relative to the slide block 45. Its bottom end is connected to the piston rod of the vertical air cylinder 46, and its upper end is connected to the connecting seat 47. The lateral air cylinder 48 is fixed on the connecting seat 47, and the piston rod of the lateral air cylinder 48 is connected to the pressing plate 43. Figures 10A to 11 As shown in the configuration state of the holder 40 and the positioning body 50, it can be seen from the figure that there is a gap G between the positioning body 50 and the slide rail 44 of its vertical displacement mechanism 41. Therefore, the positioning body 50 will not be interlocked when the slide rail 44 performs vertical displacement. Moreover, a through hole 441 is provided at the upper end of the slide rail 44 to allow the fork 431 of the pressing plate 43 to pass through it. Therefore, when the holder 40 is in the process of picking up materials, the piston rod of the vertical air cylinder 46 first vertically pushes up the slide rail 44 and the connecting seat 47, and then the piston rod of the lateral air cylinder 48 horizontally pushes the pressing plate 43. Then, the fork 431 of the pressing plate 43 will penetrate out of the positioning body 50, and its state is as Figure 12A shown. Then, the piston rod of the vertical air cylinder 46 vertically pulls down the slide rail 44 and the connecting seat 45, and the pressing plate 43 will press the stacked PP sheets. Furthermore, when the picking-up operation is completed, the holder 40 will perform the above three actions in reverse. Among them, when the piston rod of the lateral air cylinder 48 pulls back the pressing plate 43, its fork 431 will retract into the positioning body 50, and its state is as Figure 12B shown.

[0086] The positioning body 50 in the present invention, as Figure 7 and Figures 10A to 11 shown, each positioning body 50 is of a U-shaped groove structure, with the lower end fixed on the frame 10. A receiving body 51 is provided on its opening side for receiving the slide rail 44 of the vertical displacement mechanism 41 of the holder 40, and the receiving body 51 is annularly arranged around the slide rail 44 with a gap G. Also, the opposite side of the opening side of the positioning body 50 is a top surface 52 for abutting against the side edge of the stacked PP sheets, so that during the pressing process of the holder 40, between the positioning body 50 and the stacked PP sheets, the glass fibers on the side edge of the stacked PP sheets will not be detached due to repeated friction caused by the vertical displacement of the slide rail 44.

[0087] The present invention also includes a lateral telescopic adjustment mechanism 70, as Figures 5 to 7As shown, it has a transverse base 71, a transverse core rod 72, a set of left and right screw sleeves 73, a set of left and right fixed seats 74, and two transverse limit slide rails 75 on each of the left and right sides; the transverse base 71 is fixed on the frame 10, the two transverse limit slide rails 75 on each side are symmetrically locked on the left and right sides of the transverse base 71 respectively, both sides of the transverse core rod 72 are provided with reverse left and right screw threads, the left and right screw sleeves 73 are respectively sleeved on the outer edges of the transverse core rod 72 at the left and right screw thread positions, the left and right fixed seats 74 are respectively locked on the left and right screw sleeves 73 and are respectively pivotally arranged to slide on the two transverse limit slide rails 75 on each side, and the slide seat 45 of the vertical displacement mechanism 41 of the presser 40 and the lower end of the positioning body 50 are respectively locked on the left and right fixed seats 74; in the present invention, a transverse adjustment wheel 76 is further arranged on the front side of the frame 10, a transverse connecting rod 77 is connected, and a set of bevel gears 78 are respectively arranged at the ends of the transverse connecting rod 77 and the transverse core rod 72 and are meshed with each other, so that rotating the transverse adjustment wheel 76 can drive the transverse core rod 72 to rotate forward and backward. Figure 8 The following shows the method of the present invention for adjusting the relative distance between each set of pressers 40 and positioning bodies 50 according to the requirement of the transverse width W1 of the laminated PP sheet; wherein, when the transverse width W1 of the laminated PP sheet is larger and the relative distance between the presser 40 and the positioning body 50 needs to be increased, the transverse core rod 72 can be rotated forward, which will drive the left and right screw sleeves 73 to drive the left and right fixed seats 74 and further drive the presser 40 and the positioning body 50 respectively arranged on the left and right sides of the placing plate platform 20 to move outward synchronously; and when the transverse width W1 of the laminated PP sheet is smaller and the relative distance between the presser 40 and the positioning body 50 needs to be decreased, the transverse core rod 72 can be rotated backward, which will drive the left and right screw sleeves 73 to drive the left and right fixed seats 74 and further drive the presser 40 and the positioning body 50 to move inward synchronously.

[0088] The present invention further includes a longitudinal telescopic adjustment mechanism 80, as Figures 5 to 7 shown, for adjusting the relative distance of the symmetrically arranged guide rods 60 according to the requirement of the longitudinal width W2 of the laminated PP sheet; the components of the longitudinal telescopic adjustment mechanism 80 are the same as those of the transverse telescopic adjustment mechanism 70, and it has a longitudinal base 81, a longitudinal core rod 82, a set of front and rear screw sleeves 83 (as Figure 6As shown, its structure and function are the same as those of the left and right screw sleeves 73), a set of front and rear fixing seats 84, and two longitudinal limiting slide rails 85 each in the front and rear; the longitudinal base 81 is fixed on the frame 10, and the two longitudinal limiting slide rails 85 are symmetrically locked on the front and rear sides of the longitudinal base 81 respectively. Both sides of the longitudinal core rod 82 are provided with left and right screw threads in opposite directions, and the front and rear screw sleeves 83 are respectively sleeved on the outer edges of the longitudinal core rod 82 at the left and right screw thread positions. The front and rear fixing seats 84 are respectively locked on the front and rear screw sleeves 83 and are respectively pivotally arranged to slide on the two longitudinal limiting slide rails 85, and the lower ends of the guide rods 60 are respectively locked on the front and rear fixing seats 84; in the present invention, a longitudinal adjustment rotating wheel 86 is also provided on the front side of the frame 10, which is connected to the longitudinal core rod 82, and operating the longitudinal adjustment rotating wheel 86 can drive the longitudinal core rod 82 to rotate forward and backward; Figure 9 The figure shows the method of the present invention for adjusting the relative distance of the guide rods 60 according to the requirement of the longitudinal width W2 of the laminated PP sheet; among them, when the longitudinal width W2 of the laminated PP sheet is larger and the relative distance between the guide rods 60 needs to be enlarged, the longitudinal core rod 82 can be rotated forward, which will drive the front and rear screw sleeves 83 to drive the front and rear fixing seats 84, and then drive the guide rods 60 respectively arranged on the front and rear sides of the placing plate platform 20 to displace synchronously toward the outside; when the longitudinal width W2 of the laminated PP sheet is smaller and the relative distance between the guide rods 60 needs to be reduced, the longitudinal core rod 72 can be rotated backward, which will drive the longitudinal screw sleeve 73 to drive the longitudinal fixing seat 74 and then drive the guide rod 60 to displace synchronously toward the inside.

[0089] The "automatic material taking and pressing device for laminated PP sheets" of the present invention has the following benefits:

[0090] 1. The lifting device 30 drives the passive pulley 35 and the nut 34 to rotate through the timing belt 36, then the four screw rods 33 will be respectively driven by the nut 34 to displace vertically, and then synchronously lift the placing plate platform 20 continuously, so that the PP sheets placed on the top layer are kept at the material taking reference position, and thus the effect of achieving the reference positioning for piece-by-piece material taking is achieved.

[0091] 2. The presser 40 is provided with a vertical displacement mechanism 41, a horizontal displacement mechanism 42 and a pressing plate 43, which can respectively provide the presser 40 with actions of vertical pushing up, horizontal advancing and vertical pulling down during the material taking process, so that the pressing plate 43 can effectively press the laminated PP sheets, and thus the smooth piece-by-piece material taking operation can be carried out.

[0092] Thirdly, one side of the positioning body 50 can abut against the side edge of the laminated PP sheet, so that the laminated PP sheet can be positioned on the placing plate platform 20; and the opening side of the positioning body 50 is annularly arranged around the outer edge of the slide rail 44 of the vertical displacement mechanism 41 of the presser 40 with a gap G, so that during the pressing process of the presser 40, the glass fiber at the side edge of the laminated PP sheet will not be separated due to the vertical displacement of the slide rail 44 between the positioning body 50 and the laminated PP sheet.

[0093] Fourthly, a lateral telescopic adjustment mechanism 70 is also provided in the present invention to connect the presser 40 and the positioning body 50, and a longitudinal telescopic adjustment mechanism 80 is provided to connect the guide rod 60. Therefore, according to the requirements of the lateral width W1 and the longitudinal width W2 of the laminated PP sheet, the lateral telescopic adjustment mechanism 70 and the longitudinal telescopic adjustment mechanism 80 can be actuated, so that the symmetrically arranged presser 40, the positioning body 50 and the guide rod 60 are displaced synchronously towards the inner and outer sides, thereby achieving the positioning effect of the laminated PP sheet.

[0094] The above are only the preferred embodiments of the present invention, and do not impose any formal limitations on the present invention. Any simple modifications, equivalent changes and decorations made to the above embodiments based on the technical essence of the present invention still fall within the scope of the technical solution of the present invention.

Claims

1. An automatic material taking and pressing device for laminated PP sheets, characterized in that, it comprises: a frame; a plate placing platform for placing laminated PP sheets for taking materials one by one. At least one through horizontal groove is respectively provided on the left and right sides of the plate placing platform. The bottom surface thereof is connected and fixed to a lifting device on the frame, and the lifting device can continuously lift the plate placing platform so that the uppermost laminated PP sheet is kept at the material taking reference position to achieve the effect of positioning and taking materials; at least two groups of pressing devices are arranged in the horizontal grooves of the plate placing platform and fixed on the frame. Each pressing device is respectively provided with a vertical displacement mechanism, a horizontal displacement mechanism and a pressing plate, and can respectively provide the pressing device with actions of vertical pushing up, horizontal advancing and vertical pulling down during the material taking process, so that the pressing plate can effectively press the laminated PP sheets, and further enable the smooth progress of the operation of taking materials one by one; several positioning bodies are respectively arranged corresponding to the peripheries of the pressing devices, and one side surface of the positioning body can abut against the side edge of the laminated PP sheet, so that the laminated PP sheet can be positioned on the plate placing platform, and the glass fiber at the side edge of the laminated PP sheet can be prevented from detaching during the pressing process; and a controller is arranged on the frame and electrically connected to the lifting device of the plate placing platform, the vertical displacement mechanism and the horizontal displacement mechanism of the pressing device to control the actuation timing and drive relevant command actions.

2. The automatic material taking and pressing device for laminated PP sheets according to claim 1, characterized in that, the lifting device of the plate placing platform comprises a servo motor connected to an active pulley, four screw rods are respectively connected to nuts and passive pulleys, and the top ends of the individual screw rods are fixedly connected to the corners of the plate placing platform, and a timing belt surrounds the active pulley and the passive pulley; when the servo motor drives the active pulley, the timing belt will drive the passive pulley and the nut to rotate, and then the four screw rods will be respectively driven by the nut to perform vertical displacement, thereby synchronously lifting the plate placing platform.

3. The automatic material taking and pressing device for laminated PP sheets according to claim 2, characterized in that, it further includes an idler pulley pivotally arranged on the frame adjacent to the side edge of the active pulley and the distance from the active pulley can be adjusted as required, and the timing belt must first bypass the idler pulley after surrounding the active pulley before surrounding the passive pulley to maintain the due tension of the timing belt.

4. The automatic material taking and pressing device for laminated PP sheets according to claim 1, characterized in that, The vertical displacement mechanism has a slide rail, a slide block and a vertical pneumatic cylinder. The horizontal displacement mechanism has a connecting seat and a horizontal pneumatic cylinder. The slide block is connected to the vertical pneumatic cylinder and fixed on the frame. The slide rail is pivotally arranged on one side of the slide block and can perform vertical displacement relative to the slide block. Its bottom end is connected to the piston rod of the vertical pneumatic cylinder, and its upper end is connected to the connecting seat. The horizontal pneumatic cylinder is fixed on the connecting seat, and the piston rod of the horizontal pneumatic cylinder is connected to the pressing plate. During the material taking process, the piston rod of the vertical pneumatic cylinder first vertically pushes up the slide rail and the connecting seat, then the piston rod of the horizontal pneumatic cylinder horizontally pushes the pressing plate, and then the piston rod of the vertical pneumatic cylinder vertically pulls down the slide rail and the connecting seat, so that the pressing plate will press the stacked PP sheets.

5. The automatic material taking and pressing device for stacked PP sheets according to claim 4, characterized in that, each positioning body is of a U-shaped groove structure, the opposite side of its opening abuts against the side edge of the stacked PP sheets, and the positioning body is annularly arranged around the slide rail with a gap, so that during the pressing process of the presser, the glass fiber on the side edge of the stacked PP sheets will not be separated between the positioning body and the stacked PP sheets due to the vertical displacement of the slide rail.

6. The automatic material taking and pressing device for stacked PP sheets according to claim 4, characterized in that, it further includes a horizontal telescopic adjustment mechanism, which has a horizontal base, a horizontal core rod, a set of left and right screw sleeves, a set of left and right fixed seats, and two left and right horizontal limiting slide rails. The horizontal base is fixed on the frame. The two horizontal limiting slide rails are symmetrically locked on the left and right sides of the horizontal base respectively. The left and right screw threads are arranged on both sides of the horizontal core rod in opposite directions. The left and right screw sleeves are respectively sleeved on the outer edges of the horizontal core rod at the left and right screw threads. The left and right fixed seats are respectively locked on the left and right screw sleeves and are respectively pivotally arranged to slide on the two horizontal limiting slide rails. The slide block of the presser and the lower ends of the positioning bodies are respectively locked on the left and right fixed seats. When performing the horizontal positioning adjustment operation, the horizontal core rod can be rotated forward and backward, which will drive the left and right screw sleeves to drive the left and right fixed seats, and then drive the presser and the positioning bodies respectively arranged on the left and right sides of the placing plate platform to move synchronously inward and outward to meet the horizontal width requirements of the stacked PP sheets.

7. The automatic material taking and pressing device for stacked PP sheets according to claim 1, characterized in that, at least one penetrating longitudinal groove is provided on the front and rear sides of the placing plate platform, and at least two guide rods are symmetrically inserted through the longitudinal grooves of the placing plate platform and fixed on the frame to longitudinally support the stacked PP sheets to facilitate the piece-by-piece material taking operation.

8. The automatic material taking and pressing device for stacked PP sheets according to claim 7, characterized in that, It further includes a longitudinal telescopic adjustment mechanism, which has a longitudinal base, a longitudinal core rod, a set of front and rear screw sleeves, a set of front and rear fixed seats, and two front and two rear longitudinal limit sliding rails; the longitudinal base is fixed on the frame, the two longitudinal limit sliding rails are symmetrically locked on the front and rear sides of the longitudinal base respectively, the two sides of the longitudinal core rod are respectively provided with left and right screw threads in opposite directions, the front and rear screw sleeves are respectively sleeved on the outer edges of the longitudinal core rod at the left and right screw thread positions, the front and rear fixed seats are respectively locked on the front and rear screw sleeves and are respectively pivotally arranged to slide on the two longitudinal limit sliding rails, and the lower ends of the guide rods are respectively locked on the front and rear fixed seats; when performing the adjustment operation of longitudinal positioning, rotating the longitudinal core rod forward and backward will drive the front and rear screw sleeves to drive the front and rear fixed seats, and then drive the guide rods respectively arranged on the front and rear sides of the placing plate platform to move synchronously forward and backward to meet the longitudinal width requirements of the stacked PP sheets.

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