Charging tray conveying mechanism of feeding machine and feeding machine

Abstract

The utility model relates to a charging tray conveying mechanism of a feeding machine and the feeding machine. The charging tray conveying mechanism comprises a rack, a bilateral conveying belt capable of moving back and forth in the horizontal direction and a feeding tray frame capable of moving up and down in the vertical direction are correspondingly arranged on the two opposite sides of the rack, and multiple layers of charging trays are placed in the feeding tray frame. A clamping jaw air cylinder which is horizontally opened and closed and located below the bilateral conveying belt is arranged in the bilateral conveying belt and corresponds to the end, close to the feeding tray frame, of the bilateral conveying belt, and the opening and closing direction of the clamping jaw air cylinder is perpendicular to the conveying direction of the bilateral conveying belt. The bilateral conveying belt is provided with a clamping piece which is controlled to be clamped with the charging tray through conveying of the bilateral conveying belt and opening and closing of a clamping jaw of the clamping jaw air cylinder. According to the automatic feeding tray frame, the structure is simplified, and the trays can be automatically collected, released and conveyed on the same feeding tray frame during feeding.

Description

Technical Field

[0001] The utility model relates to the field of loading in IC production, in particular to a tray conveying mechanism of a loader and a loader. Background Art

[0002] Currently, in the production and processing process of IC chips, many IC chips are conveyed by loading trays. Now, many enterprises rely on manual methods to place empty trays at the loader for loading. After loading, the trays with materials are taken away and transported to the next process. The manual process is inefficient and not conducive to production. Some use a magazine to transport the trays to the loader for loading. Using a magazine requires setting up a corresponding pusher mechanism to push the trays from the magazine into the conveying guide rail. After loading materials on the trays, another pusher mechanism is needed to push the trays with materials into the magazine, or to transport them through the conveying guide rail to another magazine and then push them into the magazine through another pusher mechanism, resulting in the complication of the entire conveying structure. Moreover, there will be problems such as poor pushing and jamming and stopping during the pushing process, which greatly affects the production efficiency. Content of the Utility Model

[0003] Aiming at the existing deficiencies, the utility model provides a tray conveying mechanism of a loader and a loader.

[0004] The technical solution adopted by the utility model to solve its technical problems is: a tray conveying mechanism of a loader, including a frame. On opposite sides of the frame, there are correspondingly arranged a bilateral conveyor belt that can move back and forth in the horizontal direction and a loading tray frame with multiple layers of trays placed inside and capable of moving up and down in the vertical direction. Inside the bilateral conveyor belt of the frame, at the end position adjacent to the loading tray frame of the bilateral conveyor belt, there is a horizontally opening and closing jaw cylinder located below the bilateral conveyor belt. The opening and closing direction of the jaw cylinder is perpendicular to the conveying direction of the bilateral conveyor belt. On the bilateral conveyor belt, there is a clamping member that is controlled to clamp the tray through the conveying of the bilateral conveyor belt and the opening and closing of the jaws of the jaw cylinder.

[0005] Preferably, the clamping member includes a cross bar conveyed by the bilateral conveyor belt and two clamping arms that can elastically expand and contract and are used for clamping the tray, which are arranged on the cross bar. The expanding and contracting directions of the two clamping arms are perpendicular to the conveying direction of the bilateral conveyor belt.

[0006] Preferably, on the side wall of the cross bar opposite to the loading tray frame and adjacent to both sides of the bilateral conveyor belt, there are correspondingly arranged two notches, and the two clamping arms are correspondingly arranged in the two notches and are arranged in an adjacent state.

[0007] Preferably, both side walls of the loading tray frame corresponding to the conveying direction of the bilateral conveyor belt are of an open structure. A plurality of sliding grooves for placing trays are arranged vertically inside the loading tray frame. A bayonet capable of engaging with the clamping arm is arranged on one side of the tray corresponding to the cross bar.

[0008] Preferably, on one side of the tray corresponding to the cross bar, there is a clamping block protruding from the loading tray frame and capable of extending into the notch and engaging with the clamping arm. The bayonet is arranged on the side wall of the clamping block corresponding to the clamping arm.

[0009] Preferably, the clamping arm includes a clamping portion for engaging with the tray, a sliding portion connected to the tail end of the clamping portion and slidably arranged on the cross bar. A telescopic spring with both ends correspondingly connected to the cross bar and the sliding portion is arranged between the sliding portion and the cross bar.

[0010] Preferably, a vertical lead screw and a guide rail are arranged in parallel and at intervals on the frame. The loading tray frame is fixedly connected to the lead screw nut of the lead screw and slidably arranged on the guide rail.

[0011] Preferably, two loading tray frames are correspondingly arranged on the upper and lower sides of the frame. At least one lead screw and at least one guide rail are arranged on the frame corresponding to each loading tray frame.

[0012] Preferably, two lead screws and two guide rails are arranged on the same side of the frame. The two sides of the two loading tray frames are correspondingly connected to the lead screws and guide rails on both sides, and the two lead screws on the same side are connected to the two loading tray frames in one-to-one correspondence.

[0013] A loading machine adopts the tray conveying mechanism of the loading machine as described in any one of the above.

[0014] The beneficial effects of the present utility model are as follows: The utility model realizes the automatic clamping, picking and placing, and conveying of the tray by the cooperation of the bilateral conveyor belt, the clamping member, and the jaw cylinder, simplifies the structure, and there is no need to separately set a pushing mechanism for pushing out the empty tray from the loading tray frame and a pushing mechanism for pushing the tray filled with materials into the loading tray frame at the loading tray frame. The automatic picking and placing and conveying are realized through one structure; at the same time, the problems of unsmooth pushing and material jamming in the traditional structure are also solved. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 is a schematic structural diagram of an embodiment of the present utility model;

[0016] Figure 2 is a schematic structural diagram of the embodiment of the present utility model after removing one side plate of the frame;

[0017] Figure 3 is an embodiment of the present utility model Figure 2Schematic enlarged structure diagram of A in the [Chinese context, not specified in the original, could be something like a device or system]

[0018] Names and serial numbers of components in the figure: 1 - frame, 2 - double-sided conveyor belt, 3 - loading tray frame, 30 - tray, 31 - chute, 300 - bayonet, 301 - clamping block, 4 - gripper cylinder, 5 - clamping member, 50 - cross bar, 51 - clamping arm, 52 - notch, 510 - engaging portion, 511 - sliding portion, 6 - lead screw, 60 - lead screw nut, 7 - guide rail, 70 - slider. Specific implementation manner

[0019] In order to more clearly illustrate the purpose, technical solutions and advantages of the embodiments of the present invention, the present invention will be further described below in conjunction with the accompanying drawings and embodiments. A clear and complete description is made. Obviously, the described embodiments are partial embodiments of the present invention, rather than all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts belong to the protection scope of the present invention. In addition, the directional terms mentioned in the present invention, for example, "up", "down", "front", "back", "left", "right", "inside", "outside", etc., are only references to the directions in the attached drawings. The directional terms used are for better and clearer illustration and understanding of the present invention, rather than indicating or implying the orientation that the present invention must have. Therefore, it cannot be understood as a limitation to the present invention.

[0020] The embodiments of the present invention are as follows Figures 1 to 3As shown in the figure, a tray conveying mechanism of a loading machine includes a frame 1. The frame 1 is composed of a base, support frames arranged on the front and rear sides of the base, side plates arranged on the sides of the support frames, and a top plate arranged on the top of the support frames. On the opposite sides of the frame 1, a double-sided conveyor belt 2 capable of reciprocating in the horizontal direction and a loading tray frame 3 capable of moving up and down in the vertical direction and having multiple layers of trays 30 placed inside are correspondingly arranged. The double-sided conveyor belt 2 is arranged on the left side of the frame 1. The double-sided conveyor belt 2 is a conveyor belt provided with two parallel and juxtaposed conveyor belts. The double-sided conveyor belt 2 conveys in the left-right direction and can reciprocate in the left-right direction at the same time. The loading tray frame 3 is arranged on the right side of the frame 1 and is located inside the frame 1. It can move up and down inside the frame 1. The trays 30 are placed layer by layer inside the loading tray frame 3. The frame 1 is provided with a jaw cylinder 4 that opens and closes horizontally and is located below the double-sided conveyor belt 2 at the end position of the double-sided conveyor belt 2 adjacent to the loading tray frame 3. That is to say, the jaw cylinder 4 is located inside the two conveyor belt members of the double-sided conveyor belt 2 and is also located below the right end of the double-sided conveyor belt 2 and adjacent to the left end of the loading tray frame 3, so as not to affect the conveyance of the double-sided conveyor belt 2. The opening and closing direction of the jaw cylinder 4 is perpendicular to the conveyance direction of the double-sided conveyor belt 2. The jaws of the jaw cylinder 4 open and close in the front-rear direction. A clamping member 5 for clamping the tray 30 is arranged on the double-sided conveyor belt 2. The front and rear ends of the clamping member 5 are correspondingly connected to the front and rear conveyor belts of the double-sided conveyor belt 2 for transmission. The double-sided conveyor belt 2 is a synchronous toothed belt, and a toothed layer is arranged on the outer surface of its conveyor belt. Tooth teeth meshing with the toothed layer of the conveyor belt are arranged at the front end and the rear end of the bottom surface of the clamping member 5. The clamping member 5 moves left or right under the drive of the double-sided conveyor belt 2. When the clamping member 5 moves right to the position above the jaw cylinder 4 through the conveyance of the double-sided conveyor belt 2, the clamping or release of the clamping member 5 and the tray 30 is achieved by the opening and closing of the jaws of the jaw cylinder 4.During use, place the tray 30 in the loading tray frame 3, and then move the loading tray frame 3 up and down so that the empty tray 30 placed therein is at the same height as the clamping member 5. After that, the clamping member 5 moves above the jaw cylinder 4 under the rightward conveyance of the double-sided conveyor belt 2. The jaws of the jaw cylinder 4 open or compress to clamp the clamping member 5 and the empty tray 30. Then, under the leftward conveyance of the double-sided conveyor belt 2, the clamping member 5 conveys the empty tray 30 to the loading position. After loading the tray 30, the double-sided conveyor belt 2 conveys rightward again, and the clamping member 5 pushes the tray 30 filled with materials to move rightward to the left end of the loading tray frame 3, and during the continuous rightward movement of the clamping member 5, the tray 30 is pushed into the loading tray frame 3. After pushing the tray 30 into the loading tray frame 3, the jaws of the jaw cylinder 4 open or compress the clamping member 5 to make it disengage from the tray 30. In this way, the automatic clamping, picking and placing, and conveyance of the tray 30 are realized by the cooperation of the double-sided conveyor belt 2, the clamping member 5, and the jaw cylinder 4, which simplifies the structure. After the clamping member 5 clamps the tray 30, the tray 30 and the clamping member 5 move synchronously, solving the problems of poor pushing and material jamming caused by the disengagement of the pushing mechanism from the tray after the pushing action is completed and the pushing mechanism not pushing in place in the traditional structure.

[0021] Further improvements, such as Figure 2 and Figure 3As shown in the figure, for the structure of the clamping member 5, the clamping member 5 includes a cross bar 50 conveyed by a bilateral conveyor belt 2, and two elastically telescopic clamping arms 51 for clamping the tray 30 provided on the cross bar 50. The telescopic directions of the two clamping arms 51 are perpendicular to the conveying direction of the bilateral conveyor belt 2. The cross bar 50 is arranged along the front-rear direction, with its front end connected to the conveyor belt on the front side of the bilateral conveyor belt 2 and its rear end connected to the conveyor belt on the rear side of the bilateral conveyor belt 2. The two clamping arms 51 are arranged at the front and rear positions on the right end surface of the cross bar 50. The elastic telescoping of the clamping arms 51 facilitates the clamping of the tray 30. When clamping the tray 30, the jaws of the jaw cylinder 4 push the two clamping arms 51 to open or close to adjust the relative position between the clamping arms 51 and the tray 30. Then, the jaw cylinder 4 removes the action on the clamping arms 51, and the clamping arms 51 are engaged with the tray 30 under the action of elastic force to realize the clamping of the tray 30. For example, if the jaw cylinder 4 first pushes the two clamping arms 51 to move towards the closed state, after the clamping arms 51 are engaged with the tray 30, the jaw cylinder 4 no longer applies force to the clamping arms 51, and the clamping arms 51 tend to open under the action of elastic force, so as to firmly clamp the tray 30 and make the tray 30 move synchronously with the cross bar 50 under the action of the bilateral conveyor belt 2. The structure of the clamping arms 51 arranged on the cross bar 50 is as follows. In one case, the clamping arms 51 protrude from the right end face of the cross bar 50. In another case, two notches 52 are correspondingly arranged on the side walls of the cross bar 50 opposite to the loading tray frame 3 and adjacent to both sides of the bilateral conveyor belt 2. The clamping arms 51 are correspondingly arranged in the two notches 52 and are arranged adjacent to each other. That is to say, a notch 52 is arranged on the front side and the rear side of the right end face of the cross bar 50, and a clamping arm 51 is arranged in each notch 52. The clamping arm 51 in the rear notch 52 is arranged at a position closer to the front in the rear notch 52. In this notch 52, the jaws of the jaw cylinder 4 first push the clamping arm 51 to move forward, and then the action force of the jaw cylinder 4 disappears, and the clamping arm 51 on this side rebounds backward. The clamping arm 51 in the front notch 52 is arranged at a position closer to the rear in the front notch 52. In this notch 52, the jaws of the jaw cylinder 4 first push the clamping arm 51 to move backward, and then the action force of the jaw cylinder 4 disappears, and the clamping arm 51 on this side rebounds forward. The tray 30 is clamped by the rebound of the two clamping arms 51 moving inward.

[0022] As Figure 1 and Figure 2As shown in the figure, both side walls of the loading tray frame 3 corresponding to the two sides of the conveying direction of the double-sided conveyor belt 2 are open structures, that is, the loading tray frame 3 is a cylindrical structure. With the left-right direction as its axis direction, it is arranged on the right side inside the frame 1 facing the double-sided conveyor belt 2. A plurality of layers of chutes 31 for placing the trays 30 are arranged vertically inside the loading tray frame 3. The chutes 31 are arranged in the left-right direction on the front and rear inner side walls of the loading tray frame 3. A plurality of chutes 31 are arranged at intervals from top to bottom on each inner side wall to form a structure of multiple layers of chutes. The chutes 31 corresponding to the same layer on the front and rear inner side walls are at the same height. One tray 30 is placed in each layer of the chute 31, and the tray 30 can slide in the chute 31, which enables the clamping member 5 to pull it out of or push it into the loading tray frame 3. At this time, a bayonet 300 capable of engaging with the clamping arm 51 is arranged on one side of the tray 30 corresponding to the cross bar 50, that is, the bayonet 300 for engaging with the clamping arm 51 is arranged on the left end face of the tray 30. When the clamping arm 51 protrudes from the right end face of the cross bar 50, the jaws of the jaw cylinder 4 first compress the clamping arm 51 to align it with the bayonet 300 and insert it into the bayonet 300. Then, the force of the jaw cylinder 4 is removed, and the clamping arm 51 rebounds to clamp the tray 30. When the clamping arm 51 is arranged in the notch 52 on the right end face of the cross bar 50, a block 301 protruding from the loading tray frame 3 and capable of extending into the notch 52 and engaging with the clamping arm 51 is arranged on one side of the tray 30 corresponding to the cross bar 50. The bayonet 300 is arranged on the side wall of the block 301 corresponding to the clamping arm 51. In this way, the clamping arm 51 is first compressed, and then the block 301 extends into the notch 52 and is arranged side by side with the clamping arm 51 in the notch 52. Then, the clamping arm 51 rebounds and is clamped in the corresponding bayonet 300.

[0023] For the elastic expansion and contraction of the clamping arm 51, as Figure 3As shown in the figure, the clamping arm 51 includes an engaging portion 510 for engaging with the tray 30, and a sliding portion 511 connected to the tail end of the engaging portion 510 and slidably disposed on the cross bar 50. A telescopic spring (not shown in the figure) with both ends correspondingly connected to the cross bar 50 and the sliding portion 511 is provided between the sliding portion 511 and the cross bar 50. For example, a cross bar chute is provided on the right end face of the cross bar 50 or the inner bottom surface of the notch 52, and a slider that matches the cross bar chute and can slide relatively is provided on the left end face of the sliding portion 511. One end of the cross bar chute is of a closed structure, and the telescopic spring is connected to the inner wall of the closed end and the surface of the slider opposite to the inner wall. For example, for the rear clamping arm 51, the front end of the cross bar chute is closed, and the telescopic spring is provided between the front end face of the slider and the inner surface of the closed end of the cross bar chute; similarly, for the front clamping arm 51, the rear end of the cross bar chute is closed, and the telescopic spring is provided between the rear end face of the slider and the inner surface of the closed end of the cross bar chute; the jaw cylinder 4 pushes the clamping arm 51 to expand and contract at the bottom of the sliding portion 511 or at the bottom of the connection position between the engaging portion 510 and the sliding portion 511, and a baffle that abuts against the jaw of the jaw cylinder 4 can be provided at the bottom of the sliding portion 511.

[0024] Further improvement, such as Figure 1 and Figure 2As shown in the figure, a vertical lead screw 6 and a guide rail 7 are arranged on the frame 1 at parallel intervals. The loading tray frame 3 is fixedly connected to the lead screw nut 60 of the lead screw 6 and slides on the guide rail 7. The lead screw 6 is arranged on the front side or the rear side inside the frame 1. The lead screw nut 60 of the lead screw 6 moves up and down on the lead screw. The surface of the loading tray frame 3 corresponding to the lead screw 6 is connected to the lead screw nut 60 of the lead screw 6. The guide rail 7 is arranged parallel to the lead screw of the lead screw 6, and the guide rail 7 and the lead screw 6 are arranged on the opposite sides of the loading tray frame 3. A slider 70 slides on the guide rail 7. The surface of the loading tray frame 3 corresponding to the guide rail 7 is connected to the slider 70 of the guide rail 7, so as to ensure that the loading tray frame 3 can move up and down smoothly. In order to further improve the efficiency, two loading tray frames 3 are correspondingly arranged on the upper and lower sides of the frame 1. The two loading tray frames 3 are arranged above and below the inside of the right side of the frame 1. At this time, the distance between the two loading tray frames 3 shall not be less than twice the height of the loading tray frame 3, so as to facilitate the up and down movement of the two loading tray frames 3 inside the frame 1. The setting of the two loading tray frames 3 can not only facilitate the use but also avoid the problem that there is no available loading tray frame 3 when replacing and repairing the loading tray frame 3; at least one lead screw 6 and at least one guide rail 7 are arranged on the frame 1 corresponding to each loading tray frame 3, that is, one lead screw 6 and one guide rail 7 are correspondingly arranged for one loading tray frame 3 to move it up and down, so as to avoid the mutual influence between the two loading tray frames 3. In order to make the structure of the loading tray frame 3 move up and down more stable, two lead screws 6 and two guide rails 7 are arranged on the same side of the frame 1, that is, two lead screws 6 and two guide rails 7 are arranged on the front side of the right side inside the frame 1, and two lead screws 6 and two guide rails 7 are also arranged on the corresponding rear side. The two sides of the two loading tray frames 3 are correspondingly connected to the two lead screws 6 and the guide rails 7 on both sides, and the two lead screws 6 on the same side are connected to the two loading tray frames 3 in one-to-one correspondence. One lead screw 6 and one guide rail 7 in the two lead screws 6 and the two guide rails 7 on the front side are connected to the lower loading tray frame 3, and the other lead screw 6 and the other guide rail 7 are connected to the upper loading tray frame 3. The two lead screws 6 and the two guide rails 7 on the rear side are connected in the same way, so as to ensure the stability of the structure of the loading tray frame 3 moving up and down.

[0025] A loading machine adopts the tray conveying mechanism of the loading machine described in any one of the above. The bilateral conveyor belts 2 of the tray conveying mechanism are arranged corresponding to the position where the loading station of the loading machine is located, which is convenient for loading and also simplifies the structure of the loading machine.

[0026] Although the present invention has been described in detail above with general descriptions and specific embodiments, based on the present invention, some modifications or improvements can be made, which are obvious to those skilled in the art. Therefore, these modifications or improvements made without departing from the spirit of the present invention all fall within the scope of protection required by the present invention.

Claims

1. A tray conveying mechanism of a feeding machine, characterized in that: The machine comprises a frame, on two opposite sides of which are correspondingly provided with a double-sided conveyor belt capable of reciprocating in the horizontal direction and a loading tray frame capable of moving up and down in the vertical direction and having multiple layers of material trays placed therein; the frame is provided with a horizontally opening and closing jaw cylinder located below the double-sided conveyor belt at an end position of the double-sided conveyor belt adjacent to the loading tray frame, and the opening and closing direction of the jaw cylinder is perpendicular to the conveying direction of the double-sided conveyor belt; the double-sided conveyor belt is provided with a clamping member that is controlled to clamp the material tray by the transmission of the double-sided conveyor belt and the opening and closing of the jaws of the clamping cylinder.

2. The tray conveying mechanism of the feeder according to claim 1 is characterized in that The clamping member includes a cross bar transmitted by a double-sided conveyor belt, and two elastically retractable clamping arms arranged on the cross bar for clamping the material tray, and the retracting direction of the two clamping arms is perpendicular to the transmission direction of the double-sided conveyor belt.

3. The tray conveying mechanism of the feeder according to claim 2 is characterized in that Two notches are correspondingly arranged on the cross bar on the side wall opposite to the loading tray frame and adjacent to the two sides of the double-sided conveyor belt, and the two clamping arms are correspondingly arranged in the two notches and arranged in an adjacent state.

4. The tray conveying mechanism of the feeder according to claim 2 is characterized in that The two side walls of the loading tray frame corresponding to the conveying direction of the double-sided conveyor belt are both open structures, and multiple layers of slide grooves for placing the material trays are arranged in the vertical direction inside the loading tray frame. The material tray is provided with a snap-on socket that can engage with the clamping arm on the side corresponding to the cross bar.

5. The tray conveying mechanism of the feeder according to claim 4, characterized in that : The material tray is provided with a block on the side corresponding to the cross bar, which protrudes from the loading tray frame and can extend into the notch and engage with the clamping arm. The clamping opening is provided on a side wall corresponding to the block and the clamping arm.

6. The tray conveying mechanism of the feeder according to claim 2, characterized in that The clamping arm includes a clamping portion for clamping with the material tray, a sliding portion connected to the tail end of the clamping portion and slidably arranged on the cross bar, and a telescopic spring with two ends correspondingly connected to the cross bar and the sliding portion is arranged between the sliding portion and the cross bar.

7. The tray conveying mechanism of the feeder according to claim 1, characterized in that : The frame is provided with vertical lead screws and guide rails in parallel and at intervals, and the loading tray frame is fixedly connected to the lead screw nut and slidably arranged on the guide rail.

8. The tray conveying mechanism of the feeder according to claim 7, characterized in that : Two loading tray frames are correspondingly arranged on the upper and lower sides of the frame, and at least one lead screw and at least one guide rail are arranged on the frame corresponding to each loading tray frame.

9. The tray conveying mechanism of the feeder according to claim 7, characterized in that : Two lead screws and guide rails are arranged on the same side of the frame, and the two sides of the two loading tray frames are connected to the lead screws and guide rails on both sides correspondingly, and the two lead screws on the same side are connected to the two loading tray frames one by one.

10. A feeding machine, characterized in that :Adopt the tray conveying mechanism of the loading machine as described in any one of claims 1-9.

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