Movable suction plate device for LDI exposure machine

Abstract

The utility model discloses a movable suction plate device for an LDI exposure machine, which comprises a U-shaped bracket, first linear motor modules, a lifting cylinder, a first vacuum chuck and a turn-over feeding component, the U-shaped bracket is arranged at the front end part of the exposure machine, the first linear motor modules are respectively and horizontally arranged at the upper end part of the U-shaped bracket, and the lifting cylinder is arranged at the lower end part of the U-shaped bracket; the upper end parts of the lifting cylinders are fixedly connected with sliding blocks of the first linear motor modules respectively, the first vacuum chucks are fixedly connected with the lower end parts of cylinder rods of the lifting cylinders respectively, the turnover feeding assemblies are arranged on the two sides of the front end part of the exposure machine respectively, and the turnover hooks can be horizontally arranged at the front end part of the conveying frame; the first vacuum suction cups can slide left and right along the upper portion of the conveying frame. According to the technical scheme, automatic position adjustment, adsorption and feeding of the circuit board can be achieved, and the exposure imaging precision of the circuit board is greatly improved.

Description

Technical Field

[0001] The utility model relates to the technical field of circuit board production, in particular to a movable board suction device for an LDI exposure machine. Background Art

[0002] In the manufacturing process of printed circuit boards, one of the most critical processes is to feed the flexible circuit boards with pressed photosensitive dry films into the LDI exposure machine one by one, and transfer the negative image to the flexible circuit boards through the LDI exposure machine. However, in the current double-sided exposure imaging process of circuit boards, the circuit boards are mainly sucked one by one by a vacuum manipulator and sent to the LDI exposure machine for exposure imaging. When one side of the circuit board is exposed and imaged, the circuit board is manually turned over and sent to the exposure machine for imaging on the other side, thereby realizing the exposure imaging of the front and back sides of the circuit board. This method of manually turning over the circuit board for exposure imaging is time-consuming, labor-intensive, inefficient, and labor-intensive. Utility Model Content

[0003] The main purpose of the utility model is to provide a movable plate suction device for an LDI exposure machine, aiming to solve the technical problems of the existing manual flipping of circuit boards for exposure and imaging, which is time-consuming, labor-intensive, low-efficiency and labor-intensive.

[0004] To achieve the above-mentioned purpose, the utility model proposes a movable plate suction device for an LDI exposure machine, comprising a U-shaped bracket, a first linear motor module, a lifting cylinder, a first vacuum suction cup and a flipping loading assembly, wherein the U-shaped bracket is arranged at the front end of the exposure machine, the first linear motor modules are respectively arranged horizontally at the upper ends of the U-shaped bracket, the upper ends of the lifting cylinders are respectively fixedly connected to the sliders of the first linear motor modules, the first vacuum suction cups are respectively fixedly connected to the lower ends of the cylinder rods of the lifting cylinders, the flipping loading assemblies are respectively arranged on both sides of the front end of the exposure machine, and the flipping loading assemblies include A chassis, a conveyor belt, a first conveyor motor, a material rack, a second linear motor module, a third linear motor module, a rotating motor mounting plate, a rotating motor, a second vacuum suction cup, a flip cylinder, a first rotating shaft, a first connecting rod, a second connecting rod, a flip hook, a conveyor rack, a second rotating shaft, a rubber wheel and a second conveyor motor. The conveyor belt is rotatably arranged on both sides of the upper end of the chassis, the first conveyor motor is arranged at the upper end of the chassis, the output shaft of the first conveyor motor is connected to the conveyor belt, the material rack is detachably arranged on the upper end of the conveyor belt, the second linear motor is horizontally arranged on the outer side of the upper end of the chassis, and the third linear motor is horizontally arranged on the outer side of the upper end of the chassis. The lower end of the linear motor is fixedly connected to the slider of the second linear motor, the rear end of the rotating motor mounting plate is fixedly connected to the slider of the third linear motor, the rotating motor is arranged on the rotating motor fixing plate, the rear end of the second vacuum suction cup is fixedly connected to the output shaft of the rotating motor, the second vacuum suction cup is rotatably arranged above the conveyor belt, the rear end of the flip cylinder is rotatably connected to the outer side wall of the upper end of the chassis, the first rotating shaft is rotatably arranged above the front end of the conveyor belt, and the two ends of the first connecting rod are respectively fixed to the cylinder rod of the flip cylinder and one end of the first rotating shaft The lower ends of the second connecting rod are respectively fixedly connected to the two ends of the first rotating shaft, the lower ends of the flip hooks are respectively fixedly connected to the upper ends of the second connecting rods, the conveying frame is horizontally arranged at the upper end of the front end wall of the chassis, the second rotating shafts are respectively rotatably arranged on the conveying frame, the rubber wheels are respectively arranged on the second rotating shafts, the second conveying motor is arranged on the conveying frame, the output shaft of the second conveying motor and the second rotating shaft are connected by a synchronous belt, the flip hook can be horizontally arranged at the front end of the conveying frame, and the first vacuum suction cup can be slid left and right along the top of the conveying frame.

[0005] The cam is an assembly of a plurality of first and second sliding plates, each of which is adapted to move the first and second sliding plates to a stopper, the second sliding plates being adapted to move the first and second sliding plates to a stopper, the second sliding plates being adapted to move the first and second sliding plates to a stopper, the second sliding plates being adapted to move the first and second sliding plates to a stopper, the second sliding plates being adapted to move the second and second sliding plates to a stopper, the The cam is configured to abut against the lower end wall and the bottom plate of the first sliding sleeve, the second sliding sleeve is arranged side by side on the upper ends of the sliding plate and the side plate, the second sliding rod can be respectively slidably inserted into the second sliding sleeve for front and rear directions, the second compression spring is respectively sleeved on the front end portion of the second sliding rod, and the two ends of the second compression spring are respectively abutted against the front end portion of the second sliding rod and the front end wall of the second sliding sleeve, the front end portion of the second sliding rod can both abut against the circuit board on the material rack, the photoelectric sensor is arranged at the rear end portion of the sliding plate, the sensing sheet is fixedly connected to the rear end portion of the second sliding rod, and the sensing sheet can be slidably arranged forward and backward along the top of the photoelectric sensor, the photoelectric sensor is electrically connected to the conveying motor, the rolling bearings are respectively rotatably arranged on the two side walls of the sliding plate, the lower end portion of the material rack is provided with a plurality of first support plates, and the rolling bearings can be respectively rolled along the upper end wall of the first support plate.

[0006] The cam is an assembly of a plurality of movable parts, each of which is connected to a pair of movable parts in a pair of movable parts. The movable parts are connected to a pair of movable parts in a pair of movable parts. The movable parts are connected to a pair of movable parts in a pair of movable parts.

[0007] The technical scheme of the utility model has the following beneficial effects: the technical scheme of the utility model is arranged at the front end of the exposure machine through a U-shaped bracket, the first linear motor modules are horizontally arranged at the upper ends of the U-shaped bracket, the upper ends of the lifting cylinders are fixedly connected to the sliders of the first linear motor modules, the first vacuum suction cups are fixedly connected to the lower ends of the cylinder rods of the lifting cylinders, and the flipping loading components are respectively arranged on both sides of the front end of the exposure machine. The circuit board is transferred from right to left once to expose one side, transferred from left to right once, and automatically flipped over to expose the other side, and so on, so as to realize automatic flipping exposure and imaging of the front and back sides of the circuit board, without manual flipping operation, which greatly improves the exposure efficiency of the circuit board and reduces labor intensity. It is simple to operate, easy to use and highly practical. BRIEF DESCRIPTION OF THE DRAWINGS

[0008] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying creative work.

[0009] Figure 1 This is a schematic diagram of the overall structure of a movable suction plate device for an LDI exposure machine according to an embodiment of the utility model;

[0010] Figure 2 This is a partial structural schematic diagram of a movable suction plate device for an LDI exposure machine according to an embodiment of the utility model;

[0011] Figure 3 This is a structural schematic diagram of a flipping material assembly of a movable suction plate device for an LDI exposure machine according to an embodiment of the utility model;

[0012] Figure 4 This is a partially exploded structural schematic diagram of a movable suction plate device for an LDI exposure machine according to an embodiment of the utility model;

[0013] Figure 5 This is another partial exploded structural schematic diagram of a movable plate suction device for an LDI exposure machine according to an embodiment of the utility model;

[0014] Figure 6 This is a partial structural schematic diagram of a movable suction plate device for an LDI exposure machine according to an embodiment of the utility model;

[0015] Figure 7This is another partial structural schematic diagram of a movable suction plate device for an LDI exposure machine according to an embodiment of the utility model;

[0016] Figure 8 This is another partial structural schematic diagram of a movable suction plate device for an LDI exposure machine according to an embodiment of the utility model;

[0017] Fig. 9 This is a structural schematic diagram of a pressure plate assembly of a movable suction plate device for an LDI exposure machine according to an embodiment of the utility model;

[0018] Fig.10 The present invention is a schematic diagram of the exploded structure of a positioning assembly of a movable suction plate device for an LDI exposure machine according to an embodiment of the present invention.

[0019] The realization of the purpose, functional features and advantages of the utility model will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0021] It should be noted that all directional indications (such as up, down, left, right, front, back...) in the embodiments of the present invention are only used to explain the relative position relationship, movement status, etc. between the various components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0022] In addition, the technical solutions between the various embodiments can be combined with each other, but it must be based on the fact that ordinary technicians in the field can implement it. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such combination of technical solutions does not exist and is not within the scope of protection required by the present utility model.

[0023] The utility model provides a movable plate suction device for an LDI exposure machine.

[0024] like Figures 1 to 10As shown, in one embodiment of the utility model, the movable plate suction device for the LDI exposure machine includes a U-shaped bracket 100, a first linear motor module (not shown), a lifting cylinder 200, a first vacuum suction cup 300 and a flipping loading assembly 400. The U-shaped bracket 100 is arranged at the front end of the exposure machine 700, the first linear motor modules are respectively arranged horizontally at the upper end of the U-shaped bracket, the upper end of the lifting cylinder is respectively fixedly connected to the slider of the first linear motor module, the first vacuum suction cup is respectively fixedly connected to the lower end of the cylinder rod of the lifting cylinder, and the flipping loading assembly is respectively arranged on both sides of the front end of the exposure machine. The flip loading assembly 400 includes a chassis 401, a conveyor belt 402, a first conveyor motor (not shown), a material rack 403, a second linear motor module 404, a third linear motor module 405, a rotary motor mounting plate 406, a rotary motor 407, a second vacuum suction cup 408, a flip cylinder 409, a first rotating shaft 410, a first connecting rod 411, a second connecting rod 412, a flip hook 413, a conveyor rack 414, a second rotating shaft 415, a rubber wheel 416 and a second conveyor motor 417. The conveyor belt is rotatably disposed on both sides of the upper end of the chassis, the first conveyor motor is disposed on the upper end of the chassis, and the first conveyor motor The output shaft is connected to the conveyor belt, the material rack is detachably arranged on the upper end of the conveyor belt, the second linear motor is horizontally arranged on the outer side of the upper end of the chassis, the lower end of the third linear motor is fixedly connected to the slider of the second linear motor, the rear end of the rotating motor mounting plate is fixedly connected to the slider of the third linear motor, the rotating motor is arranged on the rotating motor fixing plate, the rear end of the second vacuum suction cup is fixedly connected to the output shaft of the rotating motor, the second vacuum suction cup is rotatably arranged above the conveyor belt, the rear end of the flip cylinder is rotatably connected to the outer side wall of the upper end of the chassis, and the first rotating shaft is rotatably arranged above the front end of the conveyor belt. The two ends of the first connecting rod are fixedly connected to the cylinder rod of the flip cylinder and one end of the first rotating shaft, the lower end of the second connecting rod is fixedly connected to the two ends of the first rotating shaft, the lower end of the flip hook is fixedly connected to the upper end of the second connecting rod, the conveying frame is horizontally arranged at the upper end of the front end wall of the chassis, the second rotating shaft is rotatably arranged on the conveying frame, the rubber wheels are respectively arranged on the second rotating shaft, the second conveying motor is arranged on the conveying frame, the output shaft of the second conveying motor and the second rotating shaft are connected by a synchronous belt, the flip hook can be horizontally arranged at the front end of the conveying frame, and the first vacuum suction cup can be slid left and right along the top of the conveying frame.

[0025] like Figure 4 and Fig. 9As shown, it also includes a pressure plate assembly 500, which is respectively arranged at the upper end of the front end of the chassis. The pressure plate assembly 500 includes a fixed plate 501, a first sliding sleeve 502, a first sliding rod 503, a bottom plate 504, a sliding plate 505, a side plate 506, a second sliding sleeve 507, a second sliding rod 508, a first compression spring (not shown), a second compression spring (not shown), a photoelectric sensor 509, a sensor sheet (not shown) and a rolling bearing 510. The front end of the fixed plate is connected to the front end of the chassis. The upper end wall is fixedly connected, the first sliding sleeves are respectively embedded in both sides of the fixed plate, the first sliding rods are respectively slidably inserted into the first sliding sleeves, the lower ends of the first sliding rods are respectively fixedly connected to the bottom plate, the sliding plate is slidably arranged above the fixed plate, the lower end wall of the sliding plate is fixedly connected to the upper end of the first sliding rod, the side plates are respectively vertically arranged on both sides of the bottom plate, the first compression springs are respectively sleeved on the lower ends of the first sliding rods, and the two ends of the first compression springs are respectively abutted against the lower end wall of the first sliding sleeve and the bottom plate The second sliding sleeve is arranged side by side at the upper end of the sliding plate and the side plate, the second sliding rod can be slidably arranged in the second sliding sleeve respectively, the second compression spring is respectively sleeved on the front end of the second sliding rod, and the two ends of the second compression spring are respectively abutted with the front end of the second sliding rod and the front end wall of the second sliding sleeve, the front end of the second sliding rod can abut with the circuit board on the material rack, the photoelectric sensor is arranged at the rear end of the sliding plate, the sensing sheet is fixedly connected to the rear end of the second sliding rod, and the sensing sheet can be slidably arranged forward and backward along the top of the photoelectric sensor, the photoelectric sensor is electrically connected to the transmission motor, the rolling bearings are rotatably arranged on the two side walls of the sliding plate, the lower end of the material rack 403 is provided with a plurality of first support plates 4031, the rolling bearings can be respectively rolled along the upper end wall of the first support plate 4031, and the circuit board can be firmly pressed and fixed on the material rack through the pressing plate assembly to avoid a large gap between the circuit boards during the stacking process of the circuit boards, which causes the circuit boards to slip and affects the second vacuum suction cup from adsorbing the circuit boards from the material rack.

[0026] like Figure 7 , Figure 8As shown in Figure 9, it also includes a positioning assembly 600, which is respectively arranged at the front end of the conveying frame. The positioning assembly 600 includes a second support plate 601, a positioning motor 602, a first synchronous pulley 603, a second synchronous pulley 604, a synchronous belt 605, a positioning plate 606, a lever 607 and a reset spring 608. The two ends of the second support plate are respectively fixedly connected to the two side walls of the conveying frame, the positioning motor is arranged at one end of the lower end wall of the conveying frame, the first synchronous pulley is rotatably arranged at the other end of the lower end wall of the second support plate, the second synchronous pulley is arranged on the output shaft of the positioning motor, and the synchronous belt The lever is rotationally connected to the first synchronous pulley and the second synchronous pulley respectively, and the positioning plate can be slid left and right on one side of the upper end of the conveyor frame. The rear end of the lever is fixedly connected to the synchronous belt, and the lower end of the positioning plate is recessed with an elliptical hole 6061, and the lever is inserted into the elliptical hole. The two ends of the reset spring are respectively fixedly connected to the lever and the side wall of the positioning motor. The circuit board is accurately positioned through the positioning assembly, so that the first vacuum suction cup can absorb the circuit board and accurately send it to the specified position of the exposure machine, so that the position of the circuit board placed in the exposure machine remains consistent, thereby improving the accuracy of exposure and imaging of the circuit board.

[0027] The working principle and process of the utility model are as follows: firstly, a stack of circuit boards is placed on a material rack, and then the material rack is placed on a conveyor belt on the right side of an exposure machine and transported forward, and then the circuit boards are sucked one by one by a second vacuum suction cup above the front end of the conveyor belt, and the circuit boards are placed on a flip hook, and the flip hook is driven to rotate by a flip cylinder, and the circuit boards are placed horizontally on the right conveyor rack, and the circuit boards are transported forward by a second rotating shaft and a rubber wheel until the front end of the circuit boards abuts against the front end wall of the conveyor rack, and then the circuit boards are aligned with the conveyor rack by a positioning cylinder and a positioning plate. Push one side to make the side wall of the circuit board abut against the side wall of the conveyor rack, so as to achieve accurate positioning of the circuit board, and then use the first vacuum suction cup to adsorb the circuit board on the conveyor rack and send it to the exposure machine, and expose and image the upper end surface of the circuit board. Then use the first vacuum suction cup to adsorb the circuit board that has completed the upper end surface exposure imaging in the exposure machine and transfer it to the conveyor rack on the left. Then use the second vacuum suction cup on the left to adsorb the circuit board on the upper end of the conveyor rack, and at the same time rotate it upward 90° and store it on the material rack on the left until all the circuit boards on the material rack on the right are taken out and transferred. The circuit board is then sucked onto the left material rack. At this time, the front end surfaces of the circuit boards stored on the left material rack have been exposed and imaged. Then, the second vacuum suction cup on the left side sucks the circuit board on the left material rack again and places it on the flip hook. The circuit board is flipped to a horizontal position by the flip cylinder and placed on the left conveyor rack. At this time, the exposed side of the circuit board faces down and the unexposed side faces up. Then, the first vacuum suction cup on the left side sucks the circuit board into the exposure machine, and the other side of the circuit board is exposed and imaged. Then, the first vacuum suction cup on the right side sucks the circuit board in the exposure machine. The circuit board is adsorbed and placed on the conveyor rack on the right, and the circuit board is transported backward through the second rotating shaft. Then, the circuit board on the conveyor rack is adsorbed and placed on the material rack on the right through the second vacuum suction cup on the right, until all the circuit boards on the material rack on the left are returned to the material rack on the right. The circuit board is transferred from right to left once to expose one side, transferred from left to right once and automatically turned over, and then the other side is exposed. This reciprocating cycle is repeated to achieve automatic flipping of the front and back sides of the circuit board for exposure and imaging. There is no need for manual turning operations, which greatly improves the exposure efficiency of the circuit board and reduces labor intensity.

[0028] The above description is only a preferred embodiment of the utility model, and does not limit the patent scope of the utility model. All equivalent structural changes made by using the contents of the utility model specification and drawings under the utility model concept, or directly / indirectly used in other related technical fields are included in the patent protection scope of the utility model.

Claims

1. A movable plate suction device for an LDI exposure machine, comprising a U-shaped bracket, a first linear motor module, a lifting cylinder, a first vacuum suction cup and a flip loading assembly, wherein the U-shaped bracket is arranged at the front end of the exposure machine, the first linear motor modules are respectively arranged horizontally at the upper end of the U-shaped bracket, the upper end of the lifting cylinder is respectively fixedly connected to the slider of the first linear motor module, the first vacuum suction cup is respectively fixedly connected to the lower end of the cylinder rod of the lifting cylinder, the flip loading assembly is respectively arranged on both sides of the front end of the exposure machine, and the flip loading assembly comprises a chassis, a conveyor belt, a first conveyor A motor, a material rack, a second linear motor module, a third linear motor module, a rotating motor mounting plate, a rotating motor, a second vacuum suction cup, a flip cylinder, a first rotating shaft, a first connecting rod, a second connecting rod, a flip hook, a conveyor rack, a second rotating shaft, a rubber wheel and a second transmission motor. The conveyor belt is rotatably arranged on both sides of the upper end of the chassis, the first transmission motor is arranged at the upper end of the chassis, the output shaft of the first transmission motor is connected to the conveyor belt, the material rack is detachably arranged on the upper end of the conveyor belt, the second linear motor is horizontally arranged on the outer side of the upper end of the chassis, and the lower end of the third linear motor is connected to the The slider of the second linear motor is fixedly connected, the rear end of the rotating motor mounting plate is fixedly connected to the slider of the third linear motor, the rotating motor is arranged on the rotating motor fixing plate, the rear end of the second vacuum suction cup is fixedly connected to the output shaft of the rotating motor, the second vacuum suction cup is rotatably arranged above the conveyor belt, the rear end of the flip cylinder is rotatably connected to the outer side wall of the upper end of the chassis, the first rotating shaft is rotatably arranged above the front end of the conveyor belt, the two ends of the first connecting rod are respectively fixedly connected to the cylinder rod of the flip cylinder and one end of the first rotating shaft, and the second connecting rod The lower ends of the rod are respectively fixedly connected to the two ends of the first rotating shaft, the lower ends of the flip hooks are respectively fixedly connected to the upper ends of the second connecting rods, the conveying frame is horizontally arranged at the upper end of the front end wall of the chassis, the second rotating shafts are respectively rotatably arranged on the conveying frame, the rubber wheels are respectively arranged on the second rotating shafts, the second conveying motor is arranged on the conveying frame, the output shaft of the second conveying motor and the second rotating shaft are connected by a synchronous belt, the flip hook can be horizontally arranged at the front end of the conveying frame, and the first vacuum suction cup can be slidably arranged left and right along the top of the conveying frame, characterized in that The cam is an assembly of a plurality of first and second sliding plates, each of which is connected with a plurality of second sliding plates, each of which is connected with a plurality of second sliding plates at a plurality of opposite ends of the cam, each of which is connected with a plurality of second sliding plates at a plurality of opposite ends of the cam. The lower end wall of the first sliding sleeve is abutted against the bottom plate, the second sliding sleeve is arranged side by side on the upper ends of the sliding plate and the side plate, the second sliding rod can be slidably inserted into the second sliding sleeve respectively, the second compression spring is respectively sleeved on the front end portion of the second sliding rod, and the two ends of the second compression spring are respectively abutted against the front end portion of the second sliding rod and the front end wall of the second sliding sleeve, the front end portion of the second sliding rod can abut against the circuit board on the material rack, the photoelectric sensor is arranged at the rear end portion of the sliding plate, the sensing sheet is fixedly connected to the rear end portion of the second sliding rod, and the sensing sheet can be slidably arranged forward and backward along the top of the photoelectric sensor, the photoelectric sensor is electrically connected to the conveying motor, the rolling bearings are respectively rotatably arranged on the two side walls of the sliding plate, and a plurality of first support plates are provided at the lower end of the material rack, and the rolling bearings can be respectively rolled along the upper end wall of the first support plate.

2. The movable plate suction device for LDI exposure machine according to claim 1, characterized in that: The cam is connected with the second support member by the second end face of the second support member, and the second end of the second support member is connected with the second support member by the second end face of the second support member.

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