TWI876708B - Automatic material taking and holding device for laminated PP sheets - Google Patents

Abstract

An automatic material taking and holding device for stacked PP sheets comprises a frame; a plate placing platform for placing stacked PP sheets for taking out one by one, the bottom surface of which is connected to a lifting device, which can continuously lift the plate placing platform so that the PP sheet placed on the top layer is kept at a material taking base position; at least two sets of holding devices with pressing plates, which can provide vertical pushing, horizontal pushing and vertical pulling and lowering actions, so that the pressing plates can hold the stacked PP sheets; a plurality of positioning bodies, which are correspondingly arranged at The periphery of the pressing device and its side surface are against the stacked PP sheets to position them on the plate-setting platform; a controller is electrically connected to the lifting device and the displacement mechanism of the pressing device to control the actuation timing and drive the related command actions; thereby, the present invention uses the lifting device and the pressing plate to effectively hold the stacked PP sheets, thereby being able to smoothly take out the materials one by one, and at the same time, the guiding positioning of the positioning body is applied to prevent the glass fiber from detaching from the side edge of the stacked PP sheets.

Description

Automatic material taking and holding device for laminated PP sheets

The present invention relates to a plate picking device, in particular to an automatic picking and holding device for stacked PP sheets that uses a positioning body to guide positioning and a pressing plate during the picking process to effectively hold the stacked PP sheets, thereby being able to smoothly pick up the sheets one by one and prevent the glass fiber from falling off.

According to the report, printed circuit boards (PCBs) are indispensable materials in electronic products, and multi-layer printed circuit boards have become the mainstream of the development of the electronics industry; multi-layer boards are made by laminating and hot-pressing the inner circuit board with the circuit and the upper and lower PP sheets as insulation.

Secondly, PP sheet (Prepreg) is a combination of glass fiber non-woven fabric and epoxy resin. In the production process, the rolled glass fiber non-woven fabric needs to be transported by rollers, and epoxy resin is coated on its surface, and finally cut into sheets to become insulating sheets. Since PP sheets will generate static electricity due to friction during the transportation process, the stacked PP sheets with static electricity will cause the layers to stick together, which is not conducive to the above-mentioned printed circuit board (PCB) in the pre-stacking process. The sheet-by-sheet material removal operation of the stacked PP sheets.

In order to overcome the problem of taking out the stacked PP sheets one by one, the inventor of the present invention has developed a patented invention of "a method and device for separating the stacked insulating sheets with static electricity". The main feature of the invention is that the stacked PP sheets with static electricity are adsorbed one by one, turned up on both sides, the static adsorption force between the layers is eliminated, and the stacked PP sheets below are pressed to separate the top PP sheet from the stacked PP sheets. However, it is found that in the process of guiding, positioning and pressing in the aforementioned one-by-one material taking method, the repeated up and down displacement of the pressing mechanism will cause the glass fibers at the side edges of the stacked PP sheets to separate due to friction. Therefore, how to improve the process of taking the stacked PP sheets without causing the glass fibers to separate has become a problem that the inventors have tried to solve.

Therefore, the main purpose of the present invention is to provide an automatic material taking and holding device for stacked PP sheets that can effectively hold the stacked PP sheets, thereby smoothly taking out the sheets one by one, and at the same time preventing the glass fibers from detaching from the side edges.

To achieve the above-mentioned purpose, the countermeasures adopted by the present invention include: a frame; a plate-placing platform for placing stacked PP sheets for one-by-one material collection, the left and right sides of the plate-placing platform are each provided with at least one penetrating transverse groove, the bottom surface of which is connected to a lifting device fixed on the frame, and the lifting device can continuously lift the plate-placing platform so that the PP sheet placed on the uppermost layer is kept at a material collection base position to achieve the effect of positioning the material collection; at least two sets of pressing devices are penetrated in the transverse groove of the plate-placing platform and fixed on the frame, each of the pressing devices is provided with a vertical displacement mechanism, a transverse displacement mechanism and a pressing plate, which can provide individual pressure relief during the material collection process. The clamp performs vertical lifting, horizontal pushing and vertical pulling and lowering actions, so that the clamp can hold the stacked PP sheets, so as to facilitate the sheet-by-sheet material removal operation; a plurality of support positioning bodies are respectively arranged on the periphery of the clamp, and one side of the positioning body can be against the side edge of the stacked PP sheets, so that the stacked PP sheets can be positioned on the plate placement platform, and the glass fibers on the side edge of the stacked PP sheets can be prevented from detaching during the clamping process; a controller is arranged on the frame, which is electrically connected to the lifting device of the plate placement platform, the vertical displacement mechanism and the horizontal displacement mechanism of the clamp, so as to control the actuation timing and drive the related command actions.

According to the above-mentioned features, the lifting device of the plate-placing platform in the present invention includes a servo motor connected to an active pulley, four screws connected to a nut and a passive pulley respectively, and the top end of each screw is fixed to the corner 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 the four screws will be driven by the nut to move vertically, thereby synchronously lifting the plate-placing platform.

According to the aforementioned features, the present invention further includes an idler wheel, which is pivotally mounted on the frame adjacent to the side edge of the active pulley, and the distance from the active pulley can be adjusted as needed. The timing belt must first pass through the idler wheel after passing through the active pulley before passing through the passive pulley, so as to maintain the proper tension of the timing belt.

According to the above-mentioned features, the vertical displacement mechanism of the present invention has a slide rail, a slide seat and a vertical pneumatic cylinder, and the lateral displacement mechanism has a connecting seat and a lateral pneumatic cylinder; the slide seat is connected to the vertical pneumatic cylinder and fixed on the frame, the slide rail is pivoted on one side of the slide seat and can be vertically displaced relative to the slide seat, and its bottom end is connected to the piston rod of the vertical pneumatic cylinder, and its upper end is connected to the piston rod of the vertical pneumatic cylinder. 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 pressure plate; when taking materials, the piston rod of the vertical pneumatic cylinder first vertically pushes up the slide rail and the connecting seat, and then the piston rod of the horizontal pneumatic cylinder pushes the pressure plate horizontally, and then the piston rod of the vertical pneumatic cylinder vertically pulls down the slide rail and the connecting seat, and then the pressure plate will press the stacked PP sheet.

According to the above-mentioned features, the individual positioning bodies in the present invention are U-shaped groove structures, the opposite sides of the openings of which are against the side edges of the stacked PP sheets, and the positioning bodies are arranged around the periphery of the slide rail with gaps, so that during the pressing process of the pressing device, the positioning bodies and the stacked PP sheets will not be separated from the glass fibers on the side edges of the stacked PP sheets due to the vertical displacement of the slide rail.

According to the above-mentioned features, the present invention further includes a transverse telescopic adjustment mechanism, which has a transverse base, a transverse mandrel, a set of left and right screw sleeves, a set of left and right fixed seats, and two left and right transverse limit slide rails; the transverse base is fixed on the frame, and the two transverse limit slide rails are symmetrically locked on the left and right sides of the transverse base, respectively. The transverse mandrel is provided with opposite left and right screw teeth on both sides, and the left and right screw sleeves are respectively sleeved on the outer edges of the transverse mandrel at the left and right screw teeth. The left and right fixed seats are fixed on the frame, and the left and right fixed seats are fixed on the frame. The left and right screw sleeves are respectively locked on the left and right screw sleeves, and are respectively pivoted on the two horizontal limit slide rails for sliding, while the slide seat of the pressure holder and the lower end of the positioning body are respectively locked on the left and right fixed seats; when the horizontal positioning is adjusted, the horizontal mandrel can be rotated forward and reversely, which will drive the left and right screw sleeves to drive the left and right fixed seats and then link the pressure holder and the positioning body located on the left and right sides of the plate placement platform to move inward and outward synchronously, so as to meet the horizontal width requirements of the stacked PP sheet.

According to the above-mentioned features, the front and rear sides of the plate placing platform in the present invention are provided with at least one penetrating longitudinal groove, and at least two guide rods are symmetrically arranged through the longitudinal groove of the plate placing platform and fixed on the frame to support the stacked PP sheets longitudinally to facilitate the sheet-by-sheet material removal operation.

According to the above-mentioned features, the present invention further includes a longitudinal extension and retraction adjustment mechanism, which has a longitudinal base, a longitudinal mandrel, a set of front and rear screw sleeves, a set of front and rear fixing seats, and two front and 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, and the longitudinal mandrel is provided with opposite left and right screw teeth on both sides, and the front and rear screw sleeves are respectively sleeved on the outer sides of the longitudinal mandrel at the left and right screw teeth. The front and rear fixed seats are respectively locked on the front and rear screw sleeves and respectively pivoted on the two longitudinal limit slide rails for sliding, and the lower end of the guide rod is respectively locked on the front and rear fixed seats; when the longitudinal positioning adjustment operation is performed, the longitudinal core rod is rotated forward and reversely, which will drive the front and rear screw sleeves to drive the front and rear fixed seats and then link the guide rods arranged on the front and rear sides of the plate placement platform to move forward and backward synchronously, so as to meet the longitudinal width requirements of the stacked PP sheet.

With the aforementioned features, the "Automatic Material Picking and Pressing Device for Stacked PP Sheets" of the present invention has the following benefits.

1. The lifting device drives the passive pulley and nut to rotate through the timing belt, and the four screws will be driven by the nuts to move vertically, thereby synchronously lifting the plate placement platform continuously, so that the PP sheet on the top layer is kept at a material removal reference position, thereby achieving the effect of reference positioning for each sheet of material removal.

2. The pressure holder is equipped with a vertical displacement mechanism, a lateral displacement mechanism and a pressure plate, which can provide the pressure holder with vertical push-up, lateral push-up and vertical pull-down actions during the material removal process, so that the pressure plate can effectively hold the stacked PP sheets, thereby smoothly carrying out the material removal operation piece by piece.

3. One side of the positioning body can be pressed against the side edge of the stacked PP sheets, so that the stacked PP sheets can be positioned on the plate-mounting platform; and the opening side of the positioning body is arranged around the outer edge of the slide rail of the vertical displacement mechanism of the pressing device with a gap, so that during the pressing process of the pressing device, the positioning body and the stacked PP sheets will not be separated due to the vertical displacement of the slide rail, causing the glass fibers on the side edge of the stacked PP sheets to be separated.

Fourth, the present invention is further provided with a transverse telescopic adjustment mechanism to connect the positioning body, and a longitudinal telescopic adjustment mechanism to connect the guide rod. In response to the transverse width and longitudinal width requirements of the stacked PP sheets, the transverse telescopic adjustment mechanism and the longitudinal telescopic adjustment mechanism can be actuated to make the symmetrically arranged positioning body and the guide rod synchronously move inward and outward; thereby achieving the positioning effect of the stacked PP sheets.

11: Rack

20: Plate placement platform

21: Transverse grooves

22: Longitudinal grooves

30: Lifting device

31:Servo motor

32: Active pulley

33: Screw

34: Nut

35: Passive pulley

36: Fashion belt

37: Idler wheel

40: Pressure holder

41: Vertical displacement mechanism

42: Horizontal displacement mechanism

43: Pressure plate

431: Forked Claws

44: Slide rail

441:Piercing

45: Sliding seat

46: Vertical air cylinder

47: Connector

48: Horizontal air cylinder

50: Positioning body

51: Container

52: Top surface

60: Guide rod

70: Horizontal extension and retraction adjustment mechanism

71: Horizontal base

72: Transverse heart bar

73: Left and right screw sleeves

74: Left and right fixing seat

75: Horizontal limit slide rail

76: Horizontal adjustment wheel

77: Transverse connecting rod

78: Helical gear

80: Longitudinal extension and retraction adjustment mechanism

81: Vertical base

82: Vertical center pole

83: front and rear screw sleeves

84: Front and rear fixing seats

85: Longitudinal limit slide rail

86: Longitudinal adjustment wheel

100: Automatic material taking and holding device for stacked PP sheets

G: Gap

W1: Horizontal width

W2: Longitudinal width

Figure 1 is a three-dimensional diagram of the assembly of the automatic material taking and holding device for stacked PP sheets of the present invention.

Figure 2 is a three-dimensional diagram of the assembly of the present invention after the panel placement platform is removed.

Figure 3 is a front view of the assembly after the panel placement platform of the present invention is removed.

Figure 4 is a top view of the assembly after the plate placement platform of the present invention is removed.

Figure 5 is a three-dimensional diagram of the present invention after the panel placement platform and the frame are removed.

Figure 6 is a top view of the assembly after the panel placement platform and the frame of the present invention are removed.

Figure 7 is a three-dimensional diagram of the assembly of the lateral adjustment mechanism of the present invention.

Figure 8 is a schematic diagram of the horizontal width positioning of the center plate platform of the present invention.

Figure 9 is a schematic diagram of the longitudinal width positioning of the center plate platform of the present invention.

Figure 10A is a three-dimensional diagram of the structure of the displacement mechanism and positioning body of the pressure holder in the present invention.

Figure 10B is a three-dimensional diagram of the partial structure of the displacement mechanism and positioning body of the clamp in the present invention.

Figure 11 is a cross-sectional view of the structure of the displacement mechanism and positioning body of the clamp in the present invention.

Figure 12A is a schematic diagram of the first action of the pressure plate of the pressure holder in the present invention.

Figure 12B is a schematic diagram of the second action of the pressure plate of the pressure holder in the present invention.

First, please refer to FIG. 1, which shows the structure of the automatic material taking and holding device 100 for stacked PP sheets in the present invention, including: a frame 10; a plate placing platform 20, which is used to place stacked PP sheets (not shown) for taking out one by one, and the left and right sides of the plate placing platform 20 are each provided with at least one penetrating transverse groove 21, and the present invention is provided with two transverse grooves 21 on the left and right sides, and at least one penetrating longitudinal groove 22 on the front and rear sides, and the present invention is provided with two longitudinal grooves 22 on the front and rear sides. The bottom surface of the plate placing platform 20 is connected to a lifting device 30 fixed on the frame, and the lifting device 30 can continuously lift the plate placing platform 20 so that the PP sheet placed on the uppermost layer is kept at a material taking reference position to achieve the effect of positioning and taking the material; at least two sets of pressure holders 40, the present invention is set to four sets of pressure holders 40, and each is inserted into the transverse groove 21 of the plate placing platform 20 and fixed on the frame 10, and each of the pressure holders 40 is provided with a pressure plate 43, and the pressure holders 43 are pressed during the material taking process. The device 40 will perform vertical pushing, horizontal pushing and vertical pulling and lowering actions, so that the pressing plate 43 can effectively hold the stacked PP sheets, and then the sheet-by-sheet material picking operation can be smoothly carried out; the plurality of positioning bodies 50, the present invention is provided with four positioning bodies 50, and each is correspondingly arranged at the periphery of the holding device 40, and one side of the positioning body 50 can be against the side edge of the stacked PP sheets, so that the stacked PP sheets can be positioned within the horizontal width of the plate placement platform 20, and can prevent overlapping during the holding process. The glass fibers on the side edge of the layered PP sheet are separated; at least two guide rods 60, the present invention is set as four guide rods 60, and are symmetrically arranged in the longitudinal groove 22 of the plate placement platform 20 and fixed on the frame 10, for vertically holding the stacked PP sheets to facilitate the sheet-by-sheet material removal operation; a controller (not shown), arranged on the frame 10, is electrically connected to the lifting device 30 of the plate placement platform 20 and the clamp 40, so as to control the actuation timing and drive the related command actions.

The lifting device 30 of the present invention, as shown in FIGS. 2-4, comprises a servo motor 31 connected to an active belt pulley 32, four screws 33 respectively connected to a nut 34 and a passive belt pulley 35, and the top end of each screw 33 is fixed to the corner of the plate-setting platform 20, a timing belt 36 encircles the active belt pulley 32 and the passive belt pulley 35; an idler wheel 37 is pivotally arranged on the frame 10 adjacent to the side edge of the active belt pulley 32, and can be adjusted to the idler wheel 37 according to needs. The distance between the active pulley 32 and the timing belt 36 must first go around the idler wheel 37 and then around the passive pulley 35 after going around the active pulley 32, so that the timing belt 36 maintains the proper tension; thereby, when the servo motor 31 drives the active pulley 32, the timing belt 36 will drive the passive pulley 35 and the nut 34 to rotate, and the four screws 33 will be driven by the nut 34 to move vertically, thereby synchronously lifting the plate placement platform 20.

Please refer to FIG. 7, which shows the structure of the clamp 40 of the present invention, which includes a vertical displacement mechanism 41, a lateral displacement mechanism 42 and a pressure plate 43. The vertical displacement mechanism 41 has a slide rail 44, a slide seat 45 and a vertical pneumatic cylinder 46, and the lateral displacement mechanism 42 has a connecting seat 47 and a lateral pneumatic cylinder 48. The slide seat 45 and the vertical pneumatic cylinder 46 are fixed on the frame 10, and the slide rail 44 is pivotally arranged on one side of the slide seat 45 and The vertical displacement mechanism 41 is provided with a plurality of vertical pressure cylinders 46, and the vertical pressure cylinder 46 is provided with a plurality of piston rods 50. The vertical pressure cylinder 46 is provided with a plurality of piston rods 50. The vertical pressure cylinder 46 is provided with a plurality of piston rods 50. The vertical pressure cylinder 46 is provided with a plurality of piston rods 50. The vertical pressure cylinder 46 is provided with a plurality of piston rods 50. The vertical pressure cylinder 46 is provided with a plurality of piston rods 50. The vertical pressure cylinder 46 is provided with a plurality of piston rods 50. The vertical pressure cylinder 46 is provided with a plurality of piston rods 50. The vertical pressure cylinder 46 is provided with a plurality of piston rods 50. The vertical pressure cylinder 46 is provided with a plurality of piston rods 50. The vertical pressure cylinder 46 is provided with a plurality of piston rods 50. The vertical pressure cylinder 46 is provided with a plurality of piston rods 50. The vertical pressure cylinder 46 is provided with a plurality of piston rods 50. The vertical pressure cylinder 46 is provided with a plurality of piston rods 50. The slide rail 44 has a gap G, so the positioning body 50 will not be linked when the slide rail 44 is displaced vertically. In addition, the upper end of the slide rail 44 is provided with a through hole 441, which can accommodate the forked claw 431 of the pressing plate 43 to extend therethrough. Therefore, when the pressing device 40 is in the process of taking materials, the piston rod of the vertical air pressure cylinder 46 first vertically pushes up the slide rail 44 and the connecting seat 47, and the piston rod of the horizontal air pressure cylinder 48 then horizontally pushes the pressing plate 43, and the forked claw 431 of the pressing plate 43 is moved. The claw 431 will pass through the positioning body 50, and its state is shown in Figure 12A. The piston rod of the vertical air pressure cylinder 46 will then vertically pull down the slide rail 44 and the connecting seat 47, and the pressure plate 43 will hold the stacked PP sheets. Furthermore, after the material removal operation is completed, the pressure holder 40 will reversely perform the above three actions. Among them, when the piston rod of the horizontal air pressure cylinder 48 pulls back the pressure plate 43, its forked claw 431 will retract into the positioning body 50, and its state is shown in Figure 12B.

The positioning body 50 of the present invention, as shown in FIG. 7 and FIG. 10A to FIG. 11, is a U-shaped groove structure, the lower end of which is fixed to the frame 10, and a receiving body 51 is provided on the opening side thereof for receiving the slide rail 44 of the vertical displacement mechanism 41 of the pressing device 40, and the receiving body 51 is provided around the slide rail 44 with a gap G. The positioning body 50 has a top surface 52 opposite to the opening side, which is used to press against the side edge of the stacked PP sheets. In this way, during the pressing process of the pressing device 40, the positioning body 50 and the stacked PP sheets will not be separated due to repeated friction between the positioning body 50 and the stacked PP sheets due to the vertical displacement of the slide rail 44.

The present invention further includes a transverse extension and retraction adjustment mechanism 70, as shown in FIGS. 5 to 7, which comprises a transverse base 71, a transverse mandrel 72, a set of left and right screw sleeves 73, a set of left and right fixing seats 74, and two left and right transverse limit slide rails 75; the transverse base 71 is fixedly mounted on the frame 10, and the two transverse limit slide rails 75 are symmetrically locked on the left and right sides of the transverse base 71, respectively, and the transverse mandrel 72 is provided with opposite left and right screw threads on both sides, and the left and right screw sleeves 73 are respectively sleeved on the outer edges of the transverse mandrel 72 at the left and right screw threads, and the left and right fixing seats 74 are respectively sleeved on the outer edges of the transverse mandrel 72 at the left and right screw threads. The fixed seats 74 are respectively locked on the left and right screw sleeves 73, and are respectively pivoted on the two transverse limit slide rails 75 for sliding movement, and the slide seat 45 of the vertical displacement mechanism 41 of the press 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 provided on the front side of the frame 10, connected to a transverse connecting rod 77, and a set of bevel gears 78 are respectively provided at the end of the transverse connecting rod 77 and the transverse mandrel 72 and make them engage with each other, then the transverse mandrel 72 can be driven to rotate forward and reverse by actuating the transverse adjustment wheel 76. FIG8 shows a method of adjusting the relative distance between each set of the clamps 40 and the positioning body 50 according to the requirement of the transverse width W1 of the stacked PP sheet. When the transverse width W1 of the stacked PP sheet is large and the relative distance between the clamps 40 and the positioning body 50 needs to be increased, the transverse mandrel 72 can be rotated forward, which drives the left and right screw sleeves 73 to drive the left and right fixing seats 74 to be connected. The retainer 40 and the positioning body 50 on the left and right sides of the plate placement platform 20 are synchronously displaced toward the outside; and when the transverse width W1 of the stacked PP sheet is small and the relative distance between the retainer 40 and the positioning body 50 needs to be reduced, the transverse core rod 72 can be rotated in the opposite direction, and the left and right screw sleeves 73 will be driven to drive the left and right fixing seats 74 and then link the retainer 40 and the positioning body 50 to synchronously displace toward the inside.

The present invention further includes a longitudinal extension adjustment mechanism 80, as shown in FIGS. 5 to 7, for adjusting the relative distance of the symmetrically arranged guide rods 60 in response to the longitudinal width W2 requirement of the stacked PP sheets; the longitudinal extension adjustment mechanism 80 comprises a longitudinal base 81, a longitudinal core rod 82, a front and rear screw sleeve 83, a front and rear fixing seat 84, and two front and rear longitudinal limit slide rails 85; the longitudinal base 81 is fixedly mounted on the frame 10, and the two longitudinal limit slide rails 85 are respectively arranged on the front and rear fixing seats 84. The longitudinal limit rails 85 are symmetrically locked on the front and rear sides of the longitudinal base 81, and the longitudinal core rod 82 is provided with left and right screw threads in opposite directions on both sides. 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 threads. The front and rear fixing seats 84 are respectively locked on the front and rear screw sleeves 83 and are respectively pivoted on the two longitudinal limit rails 85 for sliding, and the lower ends of the guide rods 60 are respectively locked on the front and rear fixing seats 8 4; in the present invention, a longitudinal adjustment wheel 86 is further provided on the front side of the frame 10, connected to the longitudinal mandrel 82, and the longitudinal adjustment wheel 86 can be actuated to drive the longitudinal mandrel 82 to rotate forward and reversely; FIG. 9 shows the method of adjusting the relative distance of the guide rods 60 in response to the longitudinal width W2 of the stacked PP sheet according to the present invention; wherein, when the longitudinal width W2 of the stacked PP sheet is larger and the relative distance between the guide rods 60 needs to be increased, the guide rods 60 can be rotated forwardly. The longitudinal core rod 82 will drive the front and rear screw sleeves 83 to drive the front and rear fixing seats 84 and then link the guide rods 60 disposed on the front and rear sides of the plate placement platform 20 to move synchronously toward the outside; and when the longitudinal width W2 of the stacked PP sheet is smaller and the relative distance between the guide rods 60 needs to be reduced, the longitudinal core rod 82 can be rotated in the opposite direction, which will drive the longitudinal screw sleeve 73 to drive the longitudinal fixing seat 74 and then link the guide rod 60 to move synchronously toward the inside.

The "Automatic Material Picking and Pressing Device for Stacked PP Sheets" of this invention has the following benefits:

1. The lifting device 30 drives the passive pulley 35 and the nut 34 to rotate through the timing belt 36, and the four screws 33 will be driven by the nuts 34 to move vertically, thereby synchronously lifting the plate placement platform 20 continuously, so that the PP sheet placed on the top layer is kept at a material removal reference position, thereby achieving the reference positioning effect of each sheet removal.

Second, the pressure holder 40 is provided with a vertical displacement mechanism 41, a lateral displacement mechanism 42 and a pressure plate 43, which can provide the pressure holder 40 with vertical pushing, lateral pushing and vertical pulling and lowering actions during the material picking process, so that the pressure plate 43 can effectively hold the stacked PP sheets, thereby smoothly carrying out the material picking operation piece by piece.

3. One side of the positioning body 50 can be pressed against the side edge of the stacked PP sheets, so that the stacked PP sheets can be positioned on the plate placement platform 20; and the opening side of the positioning body 50 is arranged around the outer edge of the slide rail 44 of the vertical displacement mechanism 41 of the clamp 40 with a gap G, so that during the clamping process of the clamp 40, the positioning body 50 and the stacked PP sheets will not be separated due to the vertical displacement of the slide rail 44, causing the glass fibers on the side edge of the stacked PP sheets to be separated.

Fourth, the present invention is further provided with a transverse extension adjustment mechanism 70 to connect the clamp 40 and the positioning body 50, and a longitudinal extension adjustment mechanism 80 to connect the guide rod 60. In response to the requirements of the transverse width W1 and the longitudinal width W2 of the stacked PP sheet, the transverse extension adjustment mechanism 70 and the longitudinal extension adjustment mechanism 80 can be actuated to make the symmetrically arranged clamp 40 and the positioning body 50 and the guide rod 60 move synchronously toward the inner and outer sides, thereby achieving the positioning effect of the stacked PP sheet.

In summary, the technical means disclosed in this invention do meet the patent requirements of invention such as "novelty", "progressiveness" and "availability for industrial use". We pray that the Bureau of Industry will grant patents to encourage inventions without any sense of gratitude.

However, the above disclosed diagrams and descriptions are only the preferred embodiments of the present invention. Any modifications or equivalent changes made by those familiar with this technology in accordance with the spirit and scope of this case should still be included in the scope of the patent application of this case.

10: Rack

20: Plate placement platform

21: Transverse grooves

22: Longitudinal grooves

30: Lifting device

31:Servo motor

32: Active pulley

33: Screw

34: Nut

35: Passive pulley

36: Fashion belt

40: Pressure holder

43: Pressure plate

50: Positioning body

60: Guide rod

100: Automatic material taking and holding device for stacked PP sheets

Claims (8)

An automatic material taking and holding device for stacked PP sheets comprises: a frame; a plate placing platform for placing stacked PP sheets for taking out one by one, the left and right sides of the plate placing platform are respectively provided with at least one penetrating transverse groove, the bottom surface of which is connected to a lifting device fixed on the frame, and the lifting device can continuously lift the plate placing platform so that the PP sheet placed on the uppermost layer is kept at a material taking reference position to achieve the effect of positioning and taking out; at least two sets of holding devices are penetrated in the transverse groove of the plate placing platform and fixed on the frame, each of the holding devices is provided with a vertical displacement mechanism, a transverse displacement mechanism and a pressing plate, and the holding devices can be individually provided with a vertical displacement mechanism, a transverse displacement mechanism and a pressing plate during the material taking process. The pressing plate can effectively hold the stacked PP sheets by vertically pushing up, horizontally pushing forward and vertically pulling down. The pressing plate can then smoothly pick up the sheets one by one. A plurality of positioning bodies are respectively arranged on the periphery of the holding device. One side of the positioning body can be against the side edge of the stacked PP sheets. The stacked PP sheets can be positioned on the plate-setting platform. The glass fibers on the side edge of the stacked PP sheets can be prevented from being separated during the holding process. A controller is arranged on the frame and is electrically connected to the lifting device of the plate-setting platform, the vertical displacement mechanism and the horizontal displacement mechanism of the holding device. The controller controls the actuation timing and drives the related command actions accordingly. As described in the first item of the patent application, the automatic material taking and holding device for stacked PP sheets, wherein the lifting device of the plate placement platform includes a servo motor connected to an active pulley, four screws connected to a nut and a passive pulley respectively, and the top of each screw is fixed to the corner of the plate placement 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 the four screws will be driven by the nut to move vertically, thereby synchronously lifting the plate placement platform. As described in item 2 of the patent application, the automatic material taking and holding device for stacked PP sheets further includes an idler wheel pivotally mounted on the frame adjacent to the side edge of the active belt pulley, and the distance from the active belt pulley can be adjusted as needed, and the timing belt must first pass through the idler wheel before passing through the passive belt pulley after passing through the active belt pulley, so as to maintain the proper tension of the timing belt. As described in item 1 of the patent application, the automatic material taking and holding device for stacked PP sheets, wherein the vertical displacement mechanism has a slide rail, a slide seat and a vertical pneumatic cylinder, and the lateral displacement mechanism has a connecting seat and a lateral pneumatic cylinder; the slide seat is connected to the vertical pneumatic cylinder and fixed on the frame, the slide rail is pivotally arranged on one side of the slide seat and can be vertically displaced relative to the slide seat, and its bottom end is connected to the movable end of the vertical pneumatic cylinder. The piston rod is connected to the connecting seat at its upper end; the horizontal pneumatic cylinder is fixed on the connecting seat, and the piston rod of the horizontal pneumatic cylinder is connected to the pressure 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, and then the piston rod of the horizontal pneumatic cylinder horizontally pushes the pressure plate, and then the piston rod of the vertical pneumatic cylinder vertically pulls down the slide rail and the connecting seat, and then the pressure plate will press the stacked PP sheet. As described in item 4 of the patent application, the automatic material removal and holding device for stacked PP sheets, wherein each positioning body is a U-shaped groove structure, the opposite side of the opening of which is against the side edge of the stacked PP sheet, and the positioning body is arranged around the periphery of the slide rail with a gap, so that during the holding process of the holding device, the positioning body and the stacked PP sheet will not be separated from the glass fiber on the side edge of the stacked PP sheet due to the vertical displacement of the slide rail. As described in item 4 of the patent application, the automatic material taking and holding device for stacked PP sheets further includes a transverse extension and adjustment mechanism, which has a transverse base, a transverse mandrel, a set of left and right screw sleeves, a set of left and right fixing seats, and two left and right transverse limit slide rails; the transverse base is fixed on the frame, and the two transverse limit slide rails are symmetrically locked on the left and right sides of the transverse base, respectively, and the transverse mandrel is provided with opposite left and right screw teeth on both sides, and the left and right screw sleeves are respectively sleeved on the transverse mandrel at the left and right screw teeth. The left and right fixed seats are locked on the left and right screw sleeves respectively, and are pivoted on the two transverse limit slide rails respectively to slide, while the slide seat of the pressure holder and the lower end of the positioning body are locked on the left and right fixed seats respectively; when the transverse positioning adjustment operation is performed, the transverse mandrel can be rotated forward and reversely, and the left and right screw sleeves will drive the left and right fixed seats to link the pressure holder and the positioning body on the left and right sides of the plate placement platform to move inward and outward synchronously, so as to meet the transverse width requirements of the stacked PP sheet. As described in the first item of the patent application, the automatic material taking and holding device for stacked PP sheets, wherein the front and rear sides of the plate placing platform are provided with at least one penetrating longitudinal groove, and at least two guide rods are symmetrically arranged through the longitudinal groove of the plate placing platform and fixed on the frame, so as to vertically hold the stacked PP sheets, so as to facilitate the material taking operation of each sheet. As described in item 7 of the patent application, the automatic material taking and holding device for stacked PP sheets further includes a longitudinal extension and retraction adjustment mechanism, which has a longitudinal base, a longitudinal mandrel, a set of front and rear screw sleeves, a set of front and rear fixing seats, and two front and 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, and the longitudinal mandrel is provided with opposite left and right screw threads on both sides, and the front and rear screw sleeves are respectively sleeved on the left and rear sides. The outer edge of the longitudinal mandrel at the right screw thread, the front and rear fixed seats are respectively locked on the front and rear screw sleeves, and are respectively pivoted on the two longitudinal limit slide rails for sliding, and the lower end of the guide rod is respectively locked on the front and rear fixed seats; when the longitudinal positioning adjustment operation is performed, the longitudinal mandrel is rotated forward and reversely, and the front and rear screw sleeves are driven to drive the front and rear fixed seats and then link the guide rods arranged on the front and rear sides of the plate placement platform to move toward the front and rear sides synchronously, so as to respond to the longitudinal width requirements of the stacked PP sheets.