Polarizer stack separating machine and separating method

Abstract

The present invention discloses a polarizer stack sorting machine and a sorting method. The polarizer stack sorting machine includes: a sorting unit, a weighing unit, and a patch unit. The sorting unit is used to sort polarizer stacks from a polarizer stack at a sorting station. The weighing unit is used to determine the actual weight of the polarizer stack at the weighing station. The patch unit is used to patch or reduce the polarizer stack at the patching station. The beneficial effects of the present invention are: automatic sorting and automatic patching can be completed, and the amount of material sorted can be accurately controlled. Costs are reduced by saving labor. Machine damage is reduced and production capacity is increased by avoiding manual contact.

Description

Technical Field

[0001] The present invention relates to the field of polarizer packaging, and in particular to a polarizer stack sorting machine and a sorting method. Background Art

[0002] The "polarizer stacking and separating unit" disclosed in Chinese utility model patent CN210102922U includes a baffle jig containing multiple polarizers and a pneumatic cylinder above the jig for separating the polarizers. However, a drawback is that the pneumatic cylinder can only separate one polarizer at a time. This mechanism is inefficient when converting a stack of polarizers into separate pieces. Summary of the Invention

[0003] The purpose of the present invention is to solve the problem of low efficiency of existing polarizer separation and to provide a new polarizer stack separation machine and separation method.

[0004] In order to achieve the above-mentioned purpose of the invention, the technical solution of the present invention is as follows: a polarizer stack sorting machine, comprising: a sorting unit, a weighing unit, and a patch unit; the sorting unit is used to sort polarizer stacks from a polarizer stack at a sorting station; the weighing unit is used to determine the actual weight of the polarizer stack at the weighing station; the patch unit is used to patch or reduce the polarizer stack at the patch station.

[0005] As a preferred solution of a polarizer stack separator, the separator unit includes: a separator fixed frame, a separator translation module, and a separator module; the separator translation module is on the separator fixed frame; and the separator translation module is used to translate the separator module.

[0006] As a preferred solution of a polarizer stack separator, the separator module comprises a separator mounting plate, a separator lifting module for lifting the separator mounting plate, a separator layering module arranged on the separator mounting plate, and a separator claw module.

[0007] As a preferred solution of a polarizer stack sorting machine, the material sorting and stratification module is on the side of the material sorting mounting plate, and the material sorting and stratification module has a stratification pushing cylinder, a pushing block fixed on the lateral telescopic axis of the stratification pushing cylinder, and a stratification lifting module for lifting the stratification pushing cylinder; the material sorting claw module is on the bottom surface of the material sorting mounting plate, and the material sorting claw module has a plurality of L-shaped claws arranged in sequence along the side that can be displaced forward and lifted, wherein the L-shaped claw closest to the material sorting and stratification module is the first one.

[0008] As a preferred solution for a polarizer stack sorting machine, the sorting claw module also has a claw displacement module for driving the L-shaped claw to move forward and move up and down. The claw displacement module includes: a claw translation module and a claw lifting module.

[0009] As a preferred solution for a polarizer stack separator, the patch unit includes: a patch fixing frame, a patch translation module, and a patch module; the patch translation module is on the patch fixing frame; the patch translation module is used to translate the patch module back and forth between the polarizer stack and the polarizer patch stack; the patch module has a patch vacuum suction cup and a patch lifting cylinder for lifting the patch vacuum suction cup.

[0010] The present invention further provides a method for separating polarizer stacks using a separating machine, comprising:

[0011] Provided is a polarizer stacking and distributing machine;

[0012] The material separation unit separates the polarizer stacks from the polarizer stack at the material separation station;

[0013] The weighing unit determines the actual weight of the polarizer stack at the weighing station; and

[0014] The patching unit patches or reduces the polarizer stack at the patching station, wherein the specific number of patches or reduced polarizers is determined based on the difference between the actual weight of the polarizer stack determined by the weighing unit and a preset target weight.

[0015] As a preferred embodiment of the dividing method of a polarizer stack dividing machine, the stratification method of the dividing and stratifying module includes: step S1, the polarizer stack is shifted to the dividing station, at which time the polarizer stack is located in front of the dividing claw module and the pushing block of the dividing and stratifying module is on the side of the rear corner of the polarizer stack; step S2, the stratification lifting module drives the pushing block to shift to the boundary position between the polarizer stack and the polarizer stack through the stratification pushing cylinder; step S3, the stratification pushing cylinder pushes the pushing block laterally so that the pushing block is against the polarizer stack; step S4, the stratification lifting module drives the pushing block to move upward through the stratification pushing cylinder, and the pushing block drives the corners of the polarizer stack to lift up, forming a stratification gap.

[0016] As a preferred solution for the material separation method of a polarizer stack separator, the loading method of the material separation claw module includes: step S1, the claw displacement module drives each of the L-shaped claws to shift to the boundary position between the polarizer stack and the polarizer stack; step S2, edge-lifting: each of the L-shaped claws sequentially performs an edge-lifting action on the polarizer stack, and the edge-lifting action includes: first inserting and then rising; step S3, overall lifting: each of the L-shaped claws sequentially performs an overall lifting action on the polarizer stack, and the overall lifting action includes: first descending, then inserting and then rising.

[0017] As a preferred embodiment of a method for dividing a polarizer stack by a material dividing machine, the patch method of the patch unit includes: step S1, the patch translation module translates the patch module to above the polarizer patch stack and the patch module grabs a single polarizer from the polarizer patch stack; step S2, the patch translation module translates the patch module to above the polarizer stack and the patch module places the single polarizer on the polarizer stack; and this cycle is repeated until the specific number of patches is reached.

[0018] Compared with the prior art, the present invention has at least the following advantages: it can automatically separate and fill the material, accurately control the amount of material separated, reduce costs by saving labor, and reduce machine damage and improve production capacity by avoiding manual contact.

[0019] In addition to the technical problems solved by the present invention, the technical features that constitute the technical solutions, and the beneficial effects brought about by the technical features of these technical solutions described above, other technical problems that can be solved by the present invention, other technical features included in the technical solutions, and the beneficial effects brought about by these technical features will be further described in detail in conjunction with the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a structural schematic diagram of the present invention.

[0021] Figure 2 It is a structural schematic diagram of the material distribution unit in the present invention.

[0022] Figure 3 It is a structural schematic diagram of the material distribution unit in the present invention.

[0023] Figure 4 It is a structural schematic diagram of the weighing unit in the present invention.

[0024] Figure 5 Schematic diagram of the structure of the patch unit in the present invention. Implementation Method

[0025] The present invention will be further described in detail below through specific embodiments in conjunction with the accompanying drawings. It should be noted that the description of these embodiments is intended to facilitate understanding of the present invention and does not constitute a limitation of the present invention. In addition, the technical features involved in the various embodiments of the present invention described below may be combined with each other as long as they do not conflict with each other.

[0026] See Figure 1 The figure shows a polarizer stack sorting machine. The machine comprises a sorting unit 1 at a sorting station, a weighing unit 2 at a weighing station, and a patching unit 3 at a patching station. The sorting station is located at the front, the weighing station is in the middle, and the distribution station is located at the back.

[0027] The separating unit 1 is used to separate polarizer stacks from a polarizer stack at the separating station.

[0028] See Figure 2 The material distribution unit 1 includes: a material distribution fixed frame 11, a material distribution translation module 12, a material distribution module 13, etc. The material distribution translation module 12 is on the material distribution fixed frame 11. The material distribution translation module 12 is used to translate the material distribution module 13.

[0029] The material dividing module 13 comprises a material dividing mounting plate 131, a material dividing lifting module 132 for lifting the material dividing mounting plate 131, a material dividing and layering module 133 and a material dividing and layering claw module 134 arranged on the material dividing mounting plate 131. The material dividing and layering module 133 is used to stack polarizers and layer polarizers. The material dividing and layering module 133 is on the left side of the material dividing mounting plate 131. The material dividing and layering module 133 comprises a layering pushing cylinder 1331, a pushing block 1332 fixed to the lateral telescopic shaft of the layering pushing cylinder 1331, a layering lifting module 1333 for lifting the layering pushing cylinder 1331, etc. The lateral telescopic shaft of the layering pushing cylinder 1331 is telescopic in the left-right direction. The delamination method of the material separation and delamination module 133 includes the following steps: Step S1: the polarizer stack is shifted to the material separation station, at which point the polarizer stack is located in front of the material separation claw module and the pushing block 1332 of the material separation and delamination module 133 is located to the left of the left rear corner of the polarizer stack. Step S2: the delamination lifting module 1333 drives the pushing block 1332 via the delamination pushing cylinder 1331 to shift to the boundary between the polarizer stack and the polarizer stack, that is, the bottom edge of the pushing block 1332 is flush with the boundary. Step S3: the delamination pushing cylinder pushes the pushing block 1332 to the right, so that the pushing block 1332 abuts against the polarizer stack. In step S4, the layered lifting module 1333 drives the pushing block 1332 to move upward through the layered pushing cylinder 1331, and the pushing block 1332 drives the stacked corners of the polarizer to rise, forming a layered gap.

[0030] The material dividing claw module 134 is on the bottom surface of the material dividing mounting plate 131 and on the right side of the material dividing layering module 133. The material dividing claw module 134 has a plurality of L-shaped claws 1341 arranged in the left-right direction and capable of forward insertion displacement and lifting displacement. The leftmost L-shaped claw 1341 is the first one. The loading method of the material dividing claw module 134 includes: step S1, the claw displacement module drives each of the L-shaped claws to shift to the boundary position between the polarizer stack and the polarizer stack. Step S2, lifting the whole edge: each of the L-shaped claws performs the whole edge lifting action on the polarizer stack in sequence, and the whole edge lifting action includes: first inserting and then rising. Specifically, the first L-shaped scooping claw 1341 advances to the gap between layers and rises to lift the polarizer stack, widening the gap. After the first L-shaped scooping claw 1341 completes the entire edge scooping action, the second L-shaped scooping claw 1341 advances to the gap between layers and rises to lift the polarizer stack, further widening the gap. Similarly, the last L-shaped scooping claw 1341 advances to the gap between layers and rises to lift the polarizer stack, now lifting the entire edge of the polarizer stack. Step S3, Entire scooping: Each L-shaped scooping claw sequentially performs an entire scooping action on the polarizer stack, and the entire scooping action includes first descending, then advancing, and finally ascending. Specifically, the first L-shaped claw 1341 first descends (the rest of the L-shaped claws 1341 remain stationary), then moves forward, and then rises; the second L-shaped claw 1341 first descends (the rest of the L-shaped claws 1341 remain stationary), then moves forward, and then rises; and so on, the last L-shaped claw 1341 first descends (the rest of the L-shaped claws 1341 remain stationary), then moves forward, and then rises, at which point the stacked polarizer is lifted up as a whole.

[0031] Preferably, the material-dividing claw module 134 further comprises a claw displacement module 1342 for driving the L-shaped claw 1341 to move forward and upward. The claw displacement module 1342 comprises a claw translation module 13421 and a claw lifting module 13422 .

[0032] See Figure 3 The weighing unit 2 is used to determine the actual weight of the polarizer stack at the weighing station.

[0033] Please attend Figure 4 The patching unit 3 is used to patch or reduce the number of polarizers in the patching station. The specific number of patches or reduced polarizers is determined based on the difference between the actual weight of the polarizer stack determined by the weighing unit 2 and a preset target weight. It should be noted that the preset target weight = the weight of a single polarizer × the preset number of polarizers.

[0034] The patch unit 3 includes: a patch fixing frame 31, a patch translation module 32, a patch module 33, etc. The patch translation module 32 is located on the patch fixing frame 31. The patch translation module 32 is used to translate the patch module 33 back and forth between the polarizer stack and the polarizer patch stack. The patch module 33 has a patch vacuum suction cup 331 and a patch lifting cylinder 332 for lifting the patch vacuum suction cup 331. The patch method of the patch unit 3 includes: translating the patch module 33 to the top of the polarizer patch stack by the patch translation module 32 and grabbing a single polarizer from the polarizer patch stack by the patch module 33. Then, translating the patch module 33 to the top of the polarizer stack by the patch translation module 32 and placing the single polarizer on the polarizer stack by the patch module 33. This cycle continues until the specific number of patches is reached.

[0035] Wherein, each of the translation modules is composed of a displacement motor, a lead screw nut pair, a displacement slider, etc.

[0036] Wherein, each of the lifting modules is composed of a lifting cylinder and the like.

[0037] The above merely describes the embodiments of the present invention, and while the description is relatively specific and detailed, it should not be construed as limiting the scope of the patent. It should be noted that a person skilled in the art could make various modifications and improvements without departing from the spirit of the present invention, all of which fall within the scope of protection of the present invention. Therefore, the scope of protection of the patent for this invention shall be determined by the appended claims.

Claims

1. A polarizer stacking machine, characterized in that: include: The material dividing unit, the weighing unit and the patch unit; the material dividing unit is used to divide the polarizer stacks in the polarizer stack at the material dividing station; the weighing unit is used to determine the actual weight of the polarizer stack at the weighing station; the patch unit is used to patch or reduce the polarizer stack at the patch station; the material dividing unit includes: a material dividing fixed frame, a material dividing translation module and a material dividing module; the material dividing translation module is on the material dividing fixed frame; the material dividing translation module is used to translate the material dividing module; the material dividing module has a material dividing mounting plate, a material dividing lifting module for lifting the material dividing mounting plate, a material dividing layering module and a material dividing claw module arranged on the material dividing mounting plate; the material dividing layering module is on the side of the material dividing mounting plate, the material dividing layering module has a layering pushing cylinder, a pushing block fixed on the lateral telescopic shaft of the layering pushing cylinder, a pushing block for lifting The stratification lifting module of the stratification pushing cylinder is lowered; the material dividing claw module is on the bottom surface of the material dividing mounting plate, and the material dividing claw module has a plurality of L-shaped claws arranged in sequence along the side that can be displaced forward and lifted, wherein the L-shaped claw closest to the material dividing stratification module is the first; the material dividing claw module also has a claw displacement module for driving the L-shaped claw to displace forward and lift, and the claw displacement module includes: a claw translation module and a claw lifting module; the patch unit includes: a patch fixing frame, a patch translation module, and a patch module; the patch translation module is on the patch fixing frame; the patch translation module is used to translate the patch module, back and forth between the polarizer stack and the polarizer patch stack; the patch module has a patch vacuum suction cup and a patch lifting cylinder for lifting the patch vacuum suction cup.

2. A method for dividing a polarizer stack by a dividing machine, characterized in that: include: Provided is a polarizer stacking machine as claimed in claim 1; The material separation unit separates the polarizer stacks from the polarizer stack at the material separation station; The weighing unit determines the actual weight of the polarizer stack at the weighing station; and The patching unit patches or reduces the polarizer stack at the patching station, wherein the specific number of patches or reduced polarizers is determined based on the difference between the actual weight of the polarizer stack determined by the weighing unit and a preset target weight.

3. The method for separating polarizer stacks according to claim 2, wherein: The stratification method of the material dividing and layering module includes: step S1, the polarizer stack is shifted to the material dividing station, at this time the polarizer stack is located in front of the material dividing claw module and the pushing block of the material dividing and layering module is beside the rear corner of the polarizer stack; step S2, the stratification lifting module drives the pushing block to shift to the boundary position between the polarizer stack and the polarizer stack through the stratification pushing cylinder; step S3, the stratification pushing cylinder pushes the pushing block laterally so that the pushing block is against the polarizer stack; step S4, the stratification lifting module drives the pushing block to move upward through the stratification pushing cylinder, and the pushing block drives the corners of the polarizer stack to rise, forming a stratification gap.

4. The method for separating polarizer stacks according to claim 3, characterized in that: The loading method of the material dividing and scooping claw module includes: step S1, the scooping claw displacement module drives each of the L-shaped scooping claws to shift to the boundary position between the polarizer stack and the polarizer stack; step S2, edge-by-edge scooping: each of the L-shaped scooping claws sequentially performs an edge-by-edge scooping action on the polarizer stack, and the edge-by-edge scooping action includes: first inserting, then rising; step S3, overall scooping: each of the L-shaped scooping claws sequentially performs an overall scooping action on the polarizer stack, and the overall scooping action includes: first descending, then inserting, and then rising.

5. The method for separating polarizer stacks according to claim 2, wherein: The patch method of the patch unit includes: step S1, the patch translation module translates the patch module to above the polarizer patch stack and the patch module grabs a single polarizer in the polarizer patch stack; step S2, the patch translation module translates the patch module to above the polarizer stack and the patch module places the single polarizer on the polarizer stack; and this cycle is repeated until the specific number of patches is reached.

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