Multi-layer membrane fully automatic folding device and control method therefor

Abstract

Disclosed in the present invention are a multi-layer membrane fully automatic folding device and a control method therefor. The folding device is disposed downstream of a membrane-cutting machine and comprises a folding mechanism and a stacking position assembly inside a device main frame; the folding mechanism comprises a smoothing roller assembly, a middle sheet traction assembly, a photoelectric detector, and a membrane incoming material traction assembly; the membrane incoming material traction assembly is disposed below the middle sheet traction assembly and executes clamping, forward traction, turning, and reverse traction operations in a reciprocating manner on a membrane incoming material; the middle sheet traction assembly performs clamping and forward traction in a reciprocating manner on a middle sheet incoming material; the smoothing roller assembly performs smoothing in a reciprocating manner on a folded membrane; a stacking clamping component clamps a smoothed membrane to a stacking position; and the photoelectric detector is disposed above a vacuum adsorption platform and receives position signals of the incoming materials. The invention meets the faster-paced production requirement of 3 P / min, has high folding uniformity, and does less damage to the membrane, achieving production efficiency and improving the quality of automatically produced products.

Description

Multilayer membrane fully automatic folding equipment and control method thereof Technical Field

[0001] The present invention relates to the technical field of membrane processing equipment, and more specifically, to a fully automatic folding device for a multi-layer membrane and a control method thereof. Background Art

[0002] In today's water purification industry, reverse osmosis (RO) membrane separation technology, with its superior separation performance, low energy consumption, and high efficiency, has become a highly competitive new commercial water production process. A spiral wound RO membrane element, based on the principle of reverse osmosis, consists of a semipermeable membrane and a flow-guiding mesh, bonded together in a specific arrangement and rolled onto a central tube with drainage holes. When raw water enters the mesh layer at one end of the element, under external pressure, a portion of the water permeates through the pores of the semipermeable membrane into the flow layer. It then flows along the waterways of the flow-guiding mesh to the drainage holes of the central tube, where it exits as deionized ultrapure water. The remaining portion (concentrated water) is discharged from the other end of the mesh layer. Furthermore, spiral wound RO membrane elements offer high salt rejection rates, low contamination levels, high removal rates of elements such as boron, silicon, and germanium, and low TOC dissolution rates. These advantages reduce processing pressure in downstream systems and improve their circulation and performance, making them the "heart" of the chip industry.

[0003] Reverse osmosis membranes are a key component of wound reverse osmosis membrane elements. During production, they primarily consist of upper and lower membranes and a middle mesh. To ensure production continuity and efficiency, both the membranes and the middle mesh are supplied in roll form. A cutting machine then cuts the membranes and the middle mesh according to parameters. The membranes are then folded in half, with the middle mesh positioned between the folds, preparing for subsequent gluing and molding. Currently, the folding and placement of the membranes are performed manually, resulting in low production efficiency. A highly automated membrane lamination machine is currently unavailable.

[0004] Therefore, developing a fully automatic folding device for multi-layer membranes and a control method thereof to improve the production efficiency of multi-layer membranes is a technical problem to be solved. Summary of the Invention

[0005] In response to the above-mentioned defects of the prior art, the present invention provides a fully automatic folding device for multi-layer membranes and a control method thereof, which can meet the high production rate requirement of 3P / min, has high folding neatness and causes less damage to the membrane, thereby meeting production efficiency and improving the quality of automated production products.

[0006] To achieve the above objectives, the present invention provides, on the one hand, a fully automatic folding device for multi-layer film sheets, which is arranged downstream of a film cutting machine and includes a base and a main frame of the device above it. The device is characterized in that it also includes a folding mechanism and a stacking position assembly inside the main frame of the device; the folding mechanism includes a flattening roller assembly, an intermediate sheet traction assembly, a detection photoelectric device, and a film sheet incoming material traction assembly;

[0007] The diaphragm material traction assembly is arranged below the intermediate film traction assembly, and reciprocatingly performs the operations of clamping, forward traction, flipping and reverse traction of the diaphragm material, including a vacuum adsorption platform, a diaphragm traction execution module and its servo motor, and a diaphragm clamping assembly; the diaphragm clamping assembly is equipped with a rotating mechanism;

[0008] The intermediate sheet pulling assembly reciprocatingly clamps and pulls the intermediate sheet material forward, and includes a pulling guide plate, an intermediate sheet clamping assembly, and a pulling mechanism thereof; the intermediate sheet clamping assembly clamps the intermediate sheet material, pulls the intermediate sheet material downward along the pulling guide plate to a designated position on the vacuum adsorption platform, and then releases the intermediate sheet material;

[0009] The smoothing roller assembly reciprocates to smooth the folded sheet, and includes a roller and downward pressure cylinders at both ends thereof, slide rails, a smoothing execution module, and a servo motor thereof; the slide rails are provided on both sides of the vacuum adsorption platform; the roller moves along the slide rails under the traction of the smoothing execution module to smooth the membrane on the vacuum adsorption platform;

[0010] The stacking position assembly includes a stacking clamping assembly and its traction mechanism, and a stacking position; the stacking clamping assembly clamps the flattened membrane to the stacking position; the detection photoelectric device is arranged above the vacuum adsorption platform to receive the position signal of the incoming material.

[0011] Furthermore, the vacuum adsorption platform is connected to the vacuum adsorption cavity at a specific position below it through a channel; the diaphragm clamping assembly is arranged at both ends of the longitudinally arranged module transverse profile; the vacuum adsorption platform is slotted in the middle, and the diaphragm traction execution module arranged laterally below the slot is transmission-connected to the module transverse profile.

[0012] Furthermore, the intermediate piece traction assembly includes side panels mounted on both sides of the vacuum adsorption platform; a coupling, a transmission shaft and an intermediate piece traction execution servo motor are mounted on the side panels; the transmission shaft is connected to the synchronous wheel; a plurality of rollers fixed on the outside of the side panels and the synchronous belt of the synchronous wheel circulate to drive the intermediate piece clamping assembly to pull and reset along the specified route.

[0013] Furthermore, side plate support rods are provided between the side plates; the traction guide plate is fixed by the side plate support rods.

[0014] Furthermore, the smoothing execution module is parallel to the slide rail and is arranged on one side of the vacuum adsorption platform. It is connected to the fixed seat of the downward pressure cylinder through the module connecting seat to drive the roller on the upper part of the downward pressure cylinder to move horizontally.

[0015] Furthermore, the stacking position assembly includes two column profiles and a middle cross bar, a stacking clamping assembly arranged on one side of the column profile and a stacking position execution module arranged on the cross bar; a safety door is provided on the operating side of the main frame of the equipment; and the stacking position is close to the safety door.

[0016] Furthermore, the stacking position includes stacking position A and stacking position B arranged in parallel; the stacking position A and stacking position B are switched through the stacking position execution module 5.6.1, rodless cylinder and stacking linear slide at the bottom; the full stacking position is switched to be close to the safety door.

[0017] Furthermore, the stacking position A and the stacking position B are provided with a limiting rod at one end away from the vacuum adsorption platform.

[0018] In another aspect, the present invention provides a method for controlling the above-mentioned fully automatic folding device for a multi-layer film sheet, characterized in that it comprises the following steps:

[0019] Step S101: the intermediate sheet traction assembly and the diaphragm incoming material traction assembly clamp the intermediate sheet incoming material and the diaphragm incoming material respectively;

[0020] Step S102: The diaphragm is pulled to a designated position until a photoelectric trigger is detected and a position signal is sent, and the vacuum adsorption platform adsorbs and fixes the diaphragm;

[0021] Step S103: the intermediate sheet is pulled to a designated position of the diaphragm;

[0022] Step S104: the diaphragm clamping assembly flips the end of the diaphragm and pulls it back to a folded state;

[0023] Step S105: The smoothing roller assembly moves laterally to smooth the multi-layer membrane sheet, and presses down on the folded portion to make it flat;

[0024] Step S106: The stacking clamping assembly drags the folded multi-layer membrane sheet to the stacking position.

[0025] Furthermore, the stacking position is divided into stacking position A and stacking position B; after stacking position A is full, the stacking position is switched from stacking position A to stacking position B, and stacking continues, and workers are prompted to transfer the multi-layer membrane products in the full stacking position in time, and the cycle continues.

[0026] Compared with the prior art, the present invention has the following advantages or beneficial effects:

[0027] (1) The folding mechanism of the present invention rationally designs the spatial relationship between the intermediate sheet traction assembly and the diaphragm incoming material traction assembly, combines the effective coordination of the diaphragm incoming material traction assembly and the smoothing roller assembly, and captures the positioning signal by setting up photoelectric detection, so that the equipment can meet the high-beat production requirements, and the folding neatness is high, and the damage to the diaphragm is small.

[0028] (2) The present invention further designs automatic switching when the stacking position is full, so as to meet the continuous production of the production line without stopping, thereby further improving production efficiency.

[0029] (3) The equipment of the present invention is compatible with diaphragm products of the same width but different lengths, and has high product compatibility. It is an important equipment for realizing the automated production of subsequent processes. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] The present invention and its features, configurations, and advantages will become more apparent upon reading the detailed description of non-limiting embodiments with reference to the following drawings. Like reference numerals indicate like parts throughout the drawings. The drawings are not necessarily drawn to scale, emphasis instead being placed on illustrating the subject matter of the present invention.

[0031] FIG1 is a schematic diagram of a fully automatic folding device and a film cutting machine for a multi-layer film sheet according to an embodiment of the present invention;

[0032] FIG2 is a schematic diagram of the overall structure of a fully automatic folding device for a multi-layer film sheet according to an embodiment of the present invention;

[0033] FIG3 is a schematic diagram of the internal structure of a fully automatic folding device for a multi-layer film sheet according to an embodiment of the present invention;

[0034] FIG4 is a schematic diagram of the three-dimensional structure of a diaphragm material pulling assembly according to one embodiment of the present invention;

[0035] FIG5 is an enlarged view of portion A in FIG4 ;

[0036] FIG6 is a front view corresponding to FIG4;

[0037] FIG7 is a schematic diagram of the three-dimensional structure of the intermediate sheet pulling assembly in one embodiment of the present invention;

[0038] FIG8 is a left side view corresponding to FIG7;

[0039] FIG9 is an enlarged view of portion W in FIG8 ;

[0040] FIG10 is a rear view corresponding to FIG7;

[0041] FIG11 is a schematic diagram of the three-dimensional structure of a smoothing roller assembly in one embodiment of the present invention;

[0042] FIG12 is a schematic diagram of the three-dimensional structure of a stacking position assembly according to an embodiment of the present invention;

[0043] FIG13 is a front view corresponding to FIG12;

[0044] FIG14 is a right side view corresponding to FIG12;

[0045] Among them, 1. Film cutting machine; 2. Base; 3. Main frame of equipment; 4. Safety door; 5. Folding mechanism; 7. Diaphragm material; 8. Intermediate film material; 5.1. Vacuum generator; 5.2. Smoothing roller assembly; 5.3. Intermediate film traction assembly; 5.4. Photoelectric detection; 5.5. Diaphragm material traction assembly; 6. Stacking position assembly; 5.2.1. Roller; 5.2.2. Slider bearing; 5.2.3. Down-pressure cylinder; 5.2.4. Cylinder mounting seat; 5.2.5. Slide rail; 5.2.6. Module connecting seat; 5.2.7. Smoothing execution module; 5.2.8. Smoothing execution module servo motor; 5.3.1. Intermediate film traction execution servo motor; 5.3.2. Coupling; 5.3.3. Drive shaft; 5 .3.4, traction guide plate; 5.3.5, synchronous pulley; 5.3.6, synchronous belt; 5.3.7, synchronous belt traction block; 5.3.8, side plate; 5.3.9, side plate support rod; 5.3.10, intermediate plate clamping assembly; 5.3.11, intermediate plate clamping assembly fixing block; 5.5.1, vacuum adsorption chamber; 5.5.2, diaphragm traction actuator servo motor; 5.5.3, module mounting plate; 5.5.4, drag chain; 5.5.5, diaphragm clamping assembly; 5.5.6, rotating mechanism; 5.5.7, diaphragm clamping assembly mounting block; 5.5.8, module transverse profile; 5.5.9, diaphragm traction actuator module; 5.5.10, vacuum adsorption platform; 5.6 .1. Stacking position execution module; 5.6.2. Column profile; 5.6.3. Limit rod; 5.6.4. Rodless cylinder; 5.6.5. Module mounting plate; 5.6.6. Stacking position A; 5.6.7. Stacking linear guide; 5.6.8. Cylinder connecting plate; 5.6.9. Stacking position B; 5.6.10. Stacking clamping assembly; 5.6.11. Stacking clamping assembly mounting block. DETAILED DESCRIPTION

[0046] The present invention will be further described below with reference to the accompanying drawings and specific embodiments, but they are not intended to limit the present invention.

[0047] In the detailed description below, the orientations or positional relationships indicated by “upper”, “lower”, “top”, “bottom”, etc. are based on the orientations or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and are not required to be constructed and operated in a specific orientation. Therefore, they should not be understood as limitations on the present invention.

[0048] The slide rails, servo motors, rollers, cylinders, etc. involved in the following effective embodiments and examples are all independently commercially available, and the control methods used are prior art that can be retrieved. The specific connection methods of each component all adopt conventional means such as mature bolts, rivets, welding, etc. in the prior art, and the components known to those skilled in the art, their structures and principles are all known to those skilled in the art through technical manuals or through conventional experimental methods. The settings of the power supply system and signal control system of the equipment in the following effective embodiments and examples are not fully described, but on the premise that those skilled in the art understand the above-mentioned principles of the invention, they can clearly know the details of its power supply system and signal control system. The control method of the inventive principle can be automatic control through a controller, and the control circuit of the controller can be realized by programming by those skilled in the art according to the inventive principle.

[0049] It should also be noted that the order of execution of the actions, steps, etc. in the devices and methods shown in the claims and the specification can be implemented in any order as long as there is no special explicit limitation on the order and as long as the output of the previous processing is not used in the subsequent processing.

[0050] Example

[0051] 1 to 3 , this embodiment provides a fully automatic folding device for multi-layer membranes, which is arranged downstream of a film cutting machine 1 and includes a base 2 and a main equipment frame 3 on its upper portion, as well as a folding mechanism 5 and a stacking position assembly 6 inside the main equipment frame 3; the folding mechanism 5 includes a smoothing roller assembly 5.2, an intermediate sheet traction assembly 5.3, a detection photoelectric 5.4, and a membrane incoming material traction assembly 5.5.

[0052] Referring to Figures 3 to 6, the incoming diaphragm material traction assembly 5.5 is arranged below the intermediate film traction assembly 5.3, and reciprocatingly performs the operations of clamping, forward traction, flipping and reverse traction of the incoming diaphragm material 7. It includes a vacuum adsorption platform 5.5.10, a diaphragm traction execution module 5.5.9 and its servo motor, and a diaphragm clamping assembly 5.5.5; the diaphragm clamping assembly 5.5.5 is equipped with a rotating mechanism 5.5.6.

[0053] Referring to Figures 3 and 7 to 10, the intermediate sheet traction assembly 5.3 reciprocates to clamp and forwardly pull the intermediate sheet material 8, including a traction guide plate 5.3.4, an intermediate sheet clamping assembly 5.3.10 and its traction mechanism; the intermediate sheet clamping assembly 5.3.10 clamps the intermediate sheet material 8, pulls the intermediate sheet material 8 downward along the traction guide plate 5.3.4 to a designated position on the vacuum adsorption platform 5.5.10, and then releases it.

[0054] Referring to Figures 3 and 11, the smoothing roller assembly 5.2 reciprocates to smooth the folded sheet, and includes a roller 5.2.1 and downward pressure cylinders 5.2.3 at its two ends, a slide rail 5.2.5, a smoothing execution module 5.2.7 and its servo motor; the slide rail 5.2.5 is arranged on both sides of the vacuum adsorption platform 5.5.10; the roller 5.2.1 moves along the slide rail 5.2.5 under the traction of the smoothing execution module 5.2.7 to smooth the membrane on the vacuum adsorption platform 5.5.10.

[0055] 3 and 12 to 14 , the stacking position assembly 6 includes a stacking clamping assembly 5.6.10 and its traction mechanism, and a stacking position; the stacking clamping assembly 5.6.10 clamps the flattened membrane to the stacking position; the detection photoelectric 5.4 is located above the vacuum adsorption platform 5.5.10 to receive the position signal of the incoming material.

[0056] The clamping assembly of this embodiment can be a cylinder clamping finger, and its rotating mechanism 5, 5, 6 can be a rotating cylinder. Of course, it can also be a similar clamping mechanism and rotating mechanism controlled by a motor or the like.

[0057] The control method of the above-mentioned multi-layer film sheet fully automatic folding device includes the following steps:

[0058] Step S101: the intermediate sheet traction assembly 5.3 and the membrane sheet incoming material traction assembly 5.5 respectively clamp the intermediate sheet incoming material 8 and the membrane sheet incoming material 7;

[0059] Step S102: The membrane is pulled to the designated position until the detection photoelectric 5.4 is triggered and sends a position signal, and the vacuum adsorption platform 5.5.10 adsorbs and fixes the membrane;

[0060] Step S103: the intermediate sheet is pulled to a designated position of the diaphragm;

[0061] Step S104: The diaphragm clamping assembly 5.5.5 clamps the end of the diaphragm, flips it over, and returns it to the diaphragm folded state;

[0062] Step S105: The smoothing roller assembly 5.2 moves laterally to smooth the multi-layer membrane sheet, and presses down on the folded portion to make it flat;

[0063] Step S106: The stacking clamping assembly 5.6.10 drags the folded multilayer membrane sheet to the stacking position.

[0064] The following provides exemplary structural or construction details for the major components of the device. It should be understood that the functionality of each major component is not limited to the specific structures described below. Anyone skilled in the art can utilize the methods and techniques disclosed above to make numerous possible variations and modifications to the technical solutions of the present invention, or to create equivalent embodiments with equivalent variations, without departing from the scope of the present invention. This does not affect the essence of the present invention.

[0065] As a preferred technical solution, referring to Figures 4 to 6, a vacuum adsorption platform 5.5.10 is connected to a vacuum adsorption chamber 5.5.1 at a specific location below it via a channel. The vacuum is generated by the vacuum generator 5.1 extracting gas from the vacuum adsorption chamber 5.5.1. The diaphragm clamping assembly 5.5.5 is mounted at both ends of the longitudinally arranged module transverse profile 5.5.8 via the diaphragm clamping assembly mounting block 5.5.7. The vacuum adsorption platform 5.5.10 is slotted in the center. Below the slot, and laterally disposed through the module mounting plate 5.5.3, a diaphragm pull actuator module 5.5.9 is driven by a diaphragm pull actuator servo motor 5.5.2 and is in transmission connection with the module transverse profile 5.5.8. It is understood that the reciprocating motion of the diaphragm pull actuator module 5.5.9 is achieved by a drag chain 5.5.4 or similar means.

[0066] As a preferred technical solution, referring to Figures 7 to 10, the intermediate sheet pulling assembly 5.3 includes side panels 5.3.8 mounted on either side of a vacuum adsorption platform 5.5.10. A coupling 5.3.2, a drive shaft 5.3.3, and an intermediate sheet pulling actuator servo motor 5.3.1 are mounted on these side panels. Drive shaft 5.3.3 drives a synchronous pulley 5.3.5. A synchronous belt 5.3.6, which circulates through rollers and synchronous pulley 5.3.5, mounted on the outside of side panels 5.3.8, drives the intermediate sheet clamping assembly 5.3.10 along a designated path and repositions it. The intermediate sheet clamping assembly 5.3.10 moves synchronously with the synchronous belt 5.3.6 via a synchronous belt pulling block 5.3.7 and an intermediate sheet clamping assembly fixing block 5.3.11. More specifically, a side panel support rod 5.3.9 is provided between the side panels 5.3.8; the traction guide plate 5.3.4 can be fixed by the side panel support rod 5.3.9.

[0067] As a preferred technical solution, see Figures 3 and 11. Smoothing module 5.2.7 is positioned parallel to slide rail 5.2.5 and on one side of vacuum platform 5.5.10. It connects to the fixed base of downward-pressing cylinder 5.2.3 via module connector 5.2.6, driving roller 5.2.1 above downward-pressing cylinder 5.2.3 to move laterally. Roller 5.2.1 is supported by slider bearing 5.2.2; downward-pressing cylinder 5.2.3 is mounted to the fixed base via cylinder mounting bracket 5.2.4. Smoothing module 5.2.7 is driven by smoothing module servo motor 5.2.8.

[0068] As a preferred technical solution, referring to Figures 2, 3 and 12, the stacking position assembly 6 includes two column profiles 5.6.2 and an intermediate cross bar, a stacking clamping assembly 5.6.10 arranged on one side of the column profile 5.6.2 through a stacking clamping assembly mounting block 5.6.1, and a stacking position execution module 5.6.1 arranged on the cross bar through a module mounting plate 5.6.5; a safety door 4 is provided on the operating side of the equipment main frame 3; the stacking position is close to the safety door 4.

[0069] More specifically, referring to Figures 12 to 14 , the stacking positions include stacking position A 5.6.6 and stacking position B 5.6.9, arranged in parallel. Positions A 5.6.6 and B 5.6.9 are switched via a stacking position actuator module 5.6.1, a rodless cylinder 5.6.4, a cylinder connecting plate 5.6.8, and a stacking linear guide rail 5.6.7 at their bases. Full stacking positions are switched closer to safety door 4. Furthermore, position A 5.6.6 and position B 5.6.9 are equipped with a limiting rod 5.6.3 at the end away from the vacuum adsorption platform 5.5.10.

[0070] In order to more clearly illustrate the technical solution and technical effects of the present invention, the specific implementation process of the multi-layer film sheet fully automatic folding device of this embodiment is described below in combination with the above technical solution.

[0071] Cutting machine 1 cuts the intermediate sheet and reverse osmosis membrane at the source of the production line into the required lengths of membrane feedstock 6 and intermediate sheet feedstock 7, respectively, and delivers them to the docking station with the multi-layer membrane fully automatic folding equipment. Intermediate sheet clamping assembly 5.3.10 clamps intermediate sheet feedstock 7, and membrane clamping assembly 5.5.5 clamps membrane feedstock 6. Membrane traction execution module 5.5.9 actuates the traction module to move profile 5.5.8 horizontally, thereby driving membrane clamping assembly 5.5.5 and the clamped membrane feedstock 7 to the designated position until the detection photoelectric sensor 5.4 triggers and signals the arrival position. Then, the vacuum generator 5.1 creates a vacuum in the vacuum chamber 5.5.1, securing the rear half of membrane feedstock 6 to the vacuum platform 5.5.10. At the same time, the intermediate sheet traction actuator servo motor 5.3.1 activates and drives the clamping assembly 5.3.10 via the drive shaft 5.3.3, synchronous belt 5.3.6, and synchronous pulley 5.3.5. This pulls the intermediate sheet material 7 downward along the traction guide plate 5.3.4 until it reaches the theoretical folding position for the already positioned film material 6. The intermediate sheet clamping assembly 5.3.10 releases and returns to the intermediate sheet material receiving position to wait. The film clamping assembly 5.5.5, under the flipping action of the rotating mechanism 5.5.6, flips one end of the film. The film traction actuator module 5.5.9 then moves toward the cutting machine, folding the film in half. Once in position, smoothing roller 5.2.1, driven by smoothing actuator servo motor 5.2.8, moves along the fold line of the diaphragm. The action of roller 5.2.1 smoothes the folded diaphragm. Then, as it approaches the fold line, downward pressure cylinder 5.2.3 presses roller 5.2.1 downward, flattening the fold. Then, roller 5.2.1, driven by downward pressure cylinder 5.2.3, rises and returns to its origin position under the action of smoothing actuator module 5.2.7, where it waits. The stacking clamping assembly 5.6.10 in the stacking position assembly 6, under the control of the stacking position execution module 5.6.1, grabs the entire folded membrane sheet and drags it to stacking position A 5.6.6, where it is limited along the limit rod 5.6.3, thus completing the folding of the first membrane sheet. This action is repeated for the second, third, and so on, sheets until stacking position A is full. Once full, the rodless cylinder 5.6.4 switches the stacking position from stacking position A 5.6.6 to stacking position B 5.6.9, continuing the stacking process. The full stacking position A 5.6.6 is now close to the safety door 4, allowing for the timely transfer of the folded membrane sheets.

[0072] As can be seen from the description of the specific embodiments above, the fully automatic folding equipment for multi-layer membranes disclosed herein utilizes a rationally designed spatial relationship between the intermediate sheet traction assembly and the incoming membrane material traction assembly, effectively coordinates the incoming membrane material traction assembly with the smoothing roller assembly, and employs photoelectric detection to capture positioning signals. This allows the equipment to meet high-rate production requirements, achieve high folding consistency, and minimize membrane damage. Furthermore, the equipment can process membrane products of varying widths and lengths, demonstrating its versatility.

[0073] In summary, the present invention provides a fully automatic folding device for multi-layer membranes and a control method thereof. The folding device is arranged downstream of the film cutting machine, and includes a folding mechanism and a stacking position assembly inside the main frame of the device; the folding mechanism includes a smoothing roller assembly, an intermediate sheet traction assembly, a detection photoelectric, and a membrane incoming material traction assembly; the membrane incoming material traction assembly is arranged below the intermediate sheet traction assembly, and reciprocally performs the operations of clamping, forward traction, flipping, and reverse traction of the membrane incoming material; the intermediate sheet traction assembly reciprocally performs clamping and forward traction of the intermediate sheet incoming material; the smoothing roller assembly reciprocally performs smoothing of the folded sheet; the stacking clamping assembly clamps the smoothed membrane to the stacking position; the detection photoelectric is arranged above the vacuum adsorption platform to receive the position signal of the incoming material. The present invention can meet the high beat production requirement of 3P / min, with high folding neatness and less damage to the membrane, which not only meets the production efficiency but also improves the quality of the automated production products.

[0074] Those skilled in the art should understand that those skilled in the art can implement variations by combining the prior art with the above embodiments, which will not be described in detail here. Such variations do not affect the essential content of the present invention and will not be described in detail here. Any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of the present invention that do not depart from the content of the technical solution of the present invention are still within the scope of protection of the technical solution of the present invention.

Claims

1.

1. A fully automatic folding device for multi-layer diaphragms, which is arranged downstream of a film cutting machine (1) and includes a base (2) and a main equipment frame (3) above it. It is characterized in that, It also includes a folding mechanism (5) and a stacking position assembly (6) inside the main frame (3) of the equipment; the folding mechanism (5) includes a flattening roller assembly (5.2), an intermediate sheet traction assembly (5.3), a detection photoelectric (5.4), and a film incoming material traction assembly (5.5); The diaphragm material traction assembly (5.5) is arranged below the intermediate film traction assembly (5.3), and reciprocates to perform the operations of clamping, forward traction, flipping and reverse traction of the diaphragm material (7), and comprises a vacuum adsorption platform (5.5.10), a diaphragm traction execution module (5.5.9) and its servo motor, and a diaphragm clamping assembly (5.5.5); the diaphragm clamping assembly (5.5.5) is equipped with a rotating mechanism (5.5.6); The intermediate sheet traction assembly (5.3) reciprocates to clamp and positively traction the intermediate sheet incoming material (8), and comprises a traction guide plate (5.3.4), an intermediate sheet clamping assembly (5.3.10) and a traction mechanism thereof; the intermediate sheet clamping assembly (5.3.10) clamps the intermediate sheet incoming material (8), and tractions the intermediate sheet incoming material (8) downward along the traction guide plate (5.3.4) to a designated position on the vacuum adsorption platform (5.5.10) and then releases the intermediate sheet incoming material (8); The smoothing roller assembly (5.2) reciprocates to smooth the folded sheet, and comprises a roller (5.2.1) and downward pressure cylinders (5.2.3) at both ends thereof, a slide rail (5.2.5), a smoothing execution module (5.2.7) and a servo motor thereof; the slide rail (5.2.5) is arranged on both sides of the vacuum adsorption platform (5.5.10); the roller (5.2.1) moves along the slide rail (5.2.5) under the traction of the smoothing execution module (5.2.7) to smooth the membrane on the vacuum adsorption platform (5.5.10); The stacking position assembly (6) comprises a stacking clamping assembly (5.6.10) and a traction mechanism thereof, and a stacking position; the stacking clamping assembly (5.6.10) clamps the flattened membrane to the stacking position; the detection photoelectric (5.4) is arranged above the vacuum adsorption platform (5.5.10) to receive a position signal of the incoming material. 2.. The automatic folding device for a multi-layer film sheet according to claim 1, characterized in that, The vacuum adsorption platform (5.5.10) is connected to a vacuum adsorption cavity (5.5.1) at a specific position below it through a channel; the diaphragm clamping assembly (5.5.5) is arranged at both ends of a longitudinally arranged module transverse profile (5.5.8); a groove is opened in the middle of the vacuum adsorption platform (5.5.10), and the diaphragm traction execution module (5.5.9) arranged transversely below the groove is transmission-connected to the module transverse profile (5.5.8). 3.. The fully automatic folding device for a multi-layer diaphragm according to claim 1 or 2, characterized in that, The intermediate sheet traction assembly (5.3) includes side plates (5.3.8) erected on both sides of the vacuum adsorption platform (5.5.10); a coupling (5.3.2), a transmission shaft (5.3.3), and an intermediate sheet traction execution servo motor (5.3.1) are erected on the side plates (5.3.8); the transmission shaft (5.3.3) is drivingly connected to a synchronous pulley (5.3.5); a synchronous belt (5.3.6) hanging on several rollers fixed on the outer side of the side plates (5.3.8) and the synchronous pulley (5.3.5) drives the intermediate sheet clamping assembly (5.3.10) to be tractioned and reset along a specified route in a circulating manner. 4.. The fully automatic folding device for a multi-layer diaphragm according to claim 3, characterized in that, A side plate support rod (5.3.9) is provided between the side plates (5.3.8); the traction guide plate (5.3.4) is fixed by the side plate support rod (5.3.9). 5.. The fully automatic folding device for a multi-layer film sheet according to claim 1 or 2, characterized in that, The flattening execution module (5.2.7) is arranged parallel to the slide rail (5.2.5) and on one side of the vacuum adsorption platform (5.5.10), and is connected to the fixed seat of the pressing cylinder (5.2.3) through a module connection seat (5.2.6) to drive the roller (5.2.1) above the pressing cylinder (5.2.3) to move horizontally.

6. The fully automatic folding device for a multi-layer diaphragm according to claim 1 or 2, characterized in that, The stacking position assembly (6) includes two column profiles (5.6.2), an intermediate cross bar, a stacking clamping assembly (5.6.10) arranged on one side of the column profiles (5.6.2), and a stacking position execution module (5.6.1) arranged on the cross bar; a safety door (4) is provided on the operation side of the main equipment frame (3); the stacking position is close to the safety door (4). 7.. The fully automatic folding device for a multi-layer film sheet according to claim 6, characterized in that, The stacking position includes a stacking position A (5.6.6) and a stacking position B (5.6.9) arranged in parallel; the stacking position A (5.6.6) and the stacking position B (5.6.9) are switched through the stacking position execution module 5.6.1, a rodless cylinder (5.6.4), and a stacking linear slide rail (5.6.7) at their bottoms; the full-material stacking position is switched to be close to the safety door (4). 8.. The fully automatic folding device for a multi-layer film sheet according to claim 6, characterized in that, The stacking position A (5.6.6) and the stacking position B (5.6.9) are provided with limit rods (5.6.3) at one end far from the vacuum adsorption platform (5.5.10). 9..A control method for a fully automatic folding device of a multi-layer film sheet according to any one of claims 1 to 8, characterized in that, It includes the following steps: Step S101, the intermediate sheet traction assembly (5.3) and the film sheet incoming material traction assembly (5.5) respectively clamp the intermediate sheet incoming material (8) and the film sheet incoming material (7); Step S102, the film sheet is tractioned to a specified position until the detection photoelectric (5.4) is triggered and an in-place signal is sent out, and the vacuum adsorption platform (5.5.10) adsorbs and fixes the film sheet; Step S103, the intermediate sheet is tractioned to the specified position of the film sheet; Step S104, the film sheet clamping assembly (5.5.5) clamps the end of the film sheet, flips it, and returns to traction the film sheet to a folded state; Step S105: The flattening roller assembly (5.2) horizontally moves to flatten multiple layers of diaphragm, and presses down at the folding position to make the folded position flat. Step S106: The stacking clamping assembly (5.6.10) drags the folded multiple layers of diaphragm to the stacking position. 10.. The control method of a fully automatic folding device for a multi-layer film sheet according to claim 9, characterized in that, The stacking position is divided into stacking position A and stacking position B; after the stacking position A is full of materials, the stacking position is switched from stacking position A to stacking position B, and stacking continues, and the worker is prompted to transfer the multi-layer diaphragm product at the full stacking position in time, and so on in a cycle.

Images