CN218087490U - Cover die return device - Google Patents

Abstract

The application belongs to the technical field of part assembling equipment, and provides a cover die return device which comprises a supporting mechanism, a linear driving mechanism and a pushing mechanism. The supporting mechanism comprises a mounting seat and a tray for supporting the cover die, the first end of the tray is rotatably connected with the mounting seat, and the linear driving mechanism is connected with the mounting seat and used for driving the mounting seat to move. The pushing mechanism comprises a pushing wheel arranged on a moving path of the tray, and the pushing wheel can push against the second end of the tray in a rolling friction mode, so that the second end of the tray moves to the same height as the return conveying line at the first end of the tray, the second end of the tray is lifted to a preset height relative to the first end of the tray from the mounting seat, and the cover die slides into the return conveying line from the tray. The application provides a cover mould passback device can avoid the cover mould to appear damaging or damaging passback transfer chain when passback as far as possible.

Description

Cover die return device

Technical Field

The application relates to the technical field of part assembling equipment, in particular to a die sleeve returning device.

Background

In the prior art, when wave soldering is performed on a PCB, the PCB needs to be placed in a cover die, then the cover die and the PCB are integrally placed on a work conveying line, after the soldering operation is completed, an operator can take out the PCB from the cover die, and then the cover die is transmitted to a return conveying line through a cover die return device, so that recycling of the cover die is realized.

SUMMERY OF THE UTILITY MODEL

An object of the embodiment of the present application is to provide a jacket mold returning device, so as to solve the technical problem that when the jacket mold returning device slides from a work conveying line into a returning conveying line having a great height difference with the work conveying line in the prior art, the jacket mold and the returning conveying line are easily damaged by collision.

In order to achieve the purpose, the technical scheme adopted by the application is as follows: the die set returning device comprises:

the supporting mechanism comprises a tray and a mounting seat, the tray is used for supporting the sleeve die and is provided with a first end and a second end which are oppositely arranged, and the first end of the tray is rotatably connected with the mounting seat;

the linear driving mechanism is connected with the mounting seat and is used for driving the mounting seat to move so as to drive the tray to move;

the pushing mechanism comprises a pushing wheel, the pushing wheel is arranged on a moving path of the tray and can abut against the second end of the tray in a rolling friction mode, so that the second end of the tray moves to the same height as the return conveying line at the first end of the tray, the second end of the tray is lifted to a preset height from the mounting seat relative to the first end of the tray, and the cover die slides into the return conveying line from the tray.

In one embodiment, the linear driving mechanism is arranged obliquely relative to the vertical direction, the linear driving mechanism is used for driving the mounting seat to move along a first horizontal direction and a vertical direction simultaneously, and the pushing wheel is arranged below the second end of the tray around a second horizontal direction perpendicular to the first horizontal direction.

In one embodiment, the mounting base comprises a mounting plate, a rotating shaft and a supporting rod, the mounting plate is connected to the power output end of the linear driving mechanism, the rotating shaft and the supporting rod are arranged on the same side of the mounting plate in a protruding mode along the direction from the direction close to the linear driving mechanism to the direction far away from the linear driving mechanism, the rotating shaft is used for supplying the first end of the tray to be movably sleeved, and the supporting rod is used for supporting the second end of the tray.

In one embodiment, the pallet has a slide slot extending from a first end of the pallet to a second end of the pallet for guiding the dies to slide into the return conveyor line.

In one embodiment, the supporting mechanism further includes an elastic member, two ends of the elastic member are respectively connected to the mounting seat and the second end of the tray, and the elastic member is configured to provide a restoring force to the second end of the tray, so that the second end of the tray rotates from a raised position relative to the first end of the tray to be supported on the mounting seat.

In one embodiment, the cover die return device further includes a material detection sensor and a controller, the material detection sensor is disposed on the tray and used for detecting whether a material exists on the tray, the controller is electrically connected to the material sensor and the linear driving mechanism respectively, and the controller is used for controlling the linear driving mechanism to drive the supporting mechanism to move to a position where the first end of the tray is as high as the return conveying line after the material detection sensor detects the material.

In one embodiment, the cover die rotating device further comprises a frame, the frame comprises two opposite side plates, a guide structure arranged along the extension direction of the linear driving mechanism is arranged between the two side plates, the guide structure is a guide rod and/or a guide rail, and the guide structure is used for being in sliding fit with the mounting base so as to guide the mounting base to move along the extension direction of the linear driving mechanism.

In one embodiment, the pushing mechanism further comprises a connecting rod, one end of the connecting rod is provided with the pushing wheel, the other end of the connecting rod is connected to the side plate, close to the second end of the tray, of the two side plates, and the height of the connecting rod on the corresponding side plate is adjustable.

In one embodiment, the rack is further provided with a control panel, the control panel is connected between the two side plates and located on one side of the rack away from the linear driving mechanism, and the control panel is provided with an on-off key for controlling the linear driving mechanism to start and stop.

In one embodiment, the bottom of the frame is provided with rollers and feet configured to alternatively support the frame.

The application provides a cover die passback device's beneficial effect lies in: compared with the prior art, the cover die return device provided by the application has the advantages that when the cover die return device is used, the cover die is placed on the tray under the condition that the first end of the tray and the second end of the tray are at the same height, the linear driving mechanism is started to drive the mounting seat to move, the mounting seat drives the tray to move, the pushing wheel pushes the second end of the tray in a sliding friction mode in the moving process of the tray, the first end of the tray moves to the position which is the same as the height of the return conveying line, the second end of the tray is lifted to the preset height relative to the first end of the tray, at the moment, the cover die on the tray can slide into the return conveying line under the action of gravity, in the process, the cover die firstly descends to the position which is approximately equal to the height of the return conveying line under the support of the tray, then slides into the return conveying line from the position which is approximately equal to the height of the return conveying line, the cover die can be slightly released from the work return conveying line to the conveying line, damage or the return conveying line can be avoided as much as possible, and the maintenance cost of the cover die and the return conveying line can be reduced.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed to be used in the embodiments or the prior art descriptions will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without inventive exercise.

Fig. 1 is a schematic structural diagram of a die set returning device when a supporting mechanism provided in an embodiment of the present application is located on the top of a linear driving mechanism;

fig. 2 is a schematic structural diagram of the die back-feeding device when the supporting mechanism is located at the bottom of the linear driving mechanism according to the embodiment of the present application;

fig. 3 is a first schematic structural diagram of the die-set feeding-back device when the supporting mechanism provided in the embodiment of the present application is located on the top of the linear driving mechanism and the tray is omitted;

fig. 4 is a second structural schematic diagram of the sleeve mold returning device when the supporting mechanism provided in the embodiment of the present application is located on the top of the linear driving mechanism and the tray is omitted.

Wherein, in the figures, the respective reference numerals:

100-a support mechanism; 110-a tray; 111-a first end; 112-a second end; 113-a chute; 114-a backplane; 115-chimb; 120-a mount; 121-a mounting plate; 1211-a first plate; 1212-a second plate body; 122-a rotating shaft; 123-support rods; 130-an elastic member;

200-a linear drive mechanism;

300-a pushing mechanism; 310-pushing wheels; 320-a connecting rod;

400-material detection sensor;

500-a frame; 510-side plates; 511-mounting grooves; 520-a guide structure; 521-a guide rail; 522-a cross bar; 523-guide bar; 530-control panel; 531-on-off key; 532-emergency stop key; 533-power key; 540-rollers; 550-supporting legs;

d1-first horizontal direction; d2-second horizontal direction.

Detailed Description

Reference will now be made in detail to embodiments of the present application, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary and intended to be used for explaining the present application and should not be construed as limiting the present application.

In the description of the present application, it is to be understood that the terms "length," "width," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like, as used herein, refer to an orientation or positional relationship indicated in the drawings, which is for convenience and simplicity of description, and does not indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and thus, is not to be considered as limiting.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or to implicitly indicate the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present application, "a plurality" means two or more unless specifically limited otherwise.

Reference throughout this specification to "one embodiment" or "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment is included in at least one embodiment of the present application. Thus, the appearances of the phrases "in one embodiment" or "in some embodiments" in various places throughout this specification are not necessarily all referring to the same embodiment. Furthermore, the particular features, structures, or characteristics may be combined in any suitable manner in one or more embodiments.

Referring to fig. 1 and fig. 2, a die set returning device according to an embodiment of the present application will now be described. The sleeve mold is usually used for loading parts such as a PCB (printed circuit board) and is placed on a working conveying line (not shown) together with the parts, the sleeve mold and the parts are placed on the working conveying line together, then the parts are welded by a welding device or other devices on the working conveying line, after the welding operation or other operations are completed, the parts and the sleeve mold are taken down from a discharge end of the working conveying line by a manipulator or manpower, the sleeve mold is placed on a sleeve mold returning device after the parts are taken out from the sleeve mold, then the sleeve mold is transferred to a feeding end of a returning conveying line (not shown) by a sleeve mold returning device, the returning conveying line conveys the sleeve mold back to the feeding end of the working conveying line, the recycling of the sleeve mold is realized, and the returning conveying line and the working conveying line have height difference.

The die set returning device comprises a supporting mechanism 100, a linear driving mechanism 200 and an ejecting mechanism 300.

The supporting mechanism 100 includes a tray 110 and a mounting base 120, the tray 110 is used for supporting the sleeve mold, the tray 110 has a first end 111 and a second end 112 which are oppositely arranged, the first end 111 of the tray 110 is rotatably connected with the mounting base 120, at this time, the second end 112 of the tray 110 can be supported on the mounting base 120 and is positioned at the same height as the first end 111 of the tray 110, or is lifted from the mounting base 120 relative to the first end 111 of the tray 110, in other words, the tray 110 is connected with the mounting base 120 in a reversible manner, and the tray 110 can be horizontally supported on the mounting base 120 or the second end 112 is lifted from the mounting base 120.

The linear driving mechanism 200 is connected to the mounting base 120 and is used for driving the mounting base 120 to move so as to drive the tray 110 to move. Specifically, the linear driving mechanism 200 may be a rodless cylinder, an electric push rod, a hydraulic cylinder, or the like.

The pushing mechanism 300 includes a pushing wheel 310, the pushing wheel 310 is disposed on the moving path of the tray 110, and the pushing wheel 310 can push against the second end 112 of the tray 110 in a rolling friction manner, so that the second end 112 of the tray 110 moves to the same height as the height of the return conveying line at the first end 111 of the tray 110, and is lifted from the mounting seat 120 by a predetermined height relative to the first end 111 of the tray 110, so that the cover mold slides from the tray 110 into the return conveying line.

Compared with the prior art, in use, when the jacket mold returning device is in use, the jacket mold is placed on the tray 110 in a state that the first end 111 of the tray 110 and the second end 112 of the tray 110 are at the same height, the linear driving mechanism 200 is started to drive the mounting seat 120 to move, the mounting seat 120 drives the tray 110 to move, and in the moving process of the tray 110, the pushing wheel 310 pushes the second end 112 of the tray 110 in a sliding friction manner, so that the first end 111 of the tray 110 moves to a position which is the same as the height of the returning conveying line, the second end 112 of the tray 110 is lifted to a preset height relative to the first end 111 of the tray 110, at the moment, the jacket mold on the tray 110 can slide into the returning conveying line under the action of gravity, in the process, the jacket mold is firstly supported by the tray 110 to descend to a position which is approximately equal to the height of the returning conveying line, and then slides into the returning conveying line from the position which is approximately equal to the height of the returning conveying line, so that the jacket mold can be lightly discharged from a work to the returning conveying line, and damage or the jacket mold during returning of the returning conveying line can be avoided as much as possible, and the maintenance cost of the jacket mold and the returning line can be reduced.

In addition, the pushing wheel 310 pushes the second end 112 of the tray 110 in a rolling friction manner, so that the tray 110 is prevented from being worn or jammed during the overturning process as much as possible, and noise can be reduced.

In another embodiment of the present application, referring to fig. 1 and 2, the linear driving mechanism 200 is disposed obliquely with respect to the vertical direction, the linear driving mechanism 200 is configured to drive the mounting base 120 to move along the first horizontal direction D1 and the vertical direction simultaneously, and the pushing wheel 310 is disposed below the second end 112 of the tray 110 around the second horizontal direction D2 perpendicular to the first horizontal direction D1.

When the cover mold returning device provided by this embodiment works, firstly, an operator or a robot places a cover mold on the tray 110 in an initial state, then the linear actuator drives the mounting seat 120 to descend, the tray 110 descends from the top of the linear driving mechanism 200 under the driving of the mounting seat 120, after the tray 110 descends to contact with the pushing wheel 310, the pushing wheel 310 starts to rotate around the second horizontal direction D2 and pushes the second end 112 of the tray 110, so that the device is in a final state, that is, the first end 111 of the tray 110 is at the same height as the returning conveying line, the second end 112 of the tray 110 is lifted by a predetermined height relative to the first end 111 of the tray 110, so that the cover mold on the tray 110 slides into the returning conveying line under the action of gravity, then, the linear actuator drives the mounting seat 120 to ascend to the top of the linear driving mechanism 200, so that the cover mold returning device returns to the initial state, and the cover mold returning device can continue to return the next cover mold to the returning conveying line. In the die-set returning device provided by this embodiment, the pushing wheel 310 pushes the tray 110 in a rolling friction manner, so as to avoid the tray 110 from being worn or jammed during the turning process, and reduce noise; in addition, the projections of the trays 110 in the initial state and the final state in the vertical direction are staggered, in other words, the trays 110 in the initial state are located above the side of the trays 110 in the final state, rather than directly above, so that the work conveying line and the return conveying line can be compactly arranged in a manner that the work conveying line is above the return conveying line and the return conveying line is directly below the work conveying line, and the design of the work conveying line and the return conveying line is simplified.

In another embodiment of the present application, referring to fig. 3, the mounting base 120 includes a mounting plate 121, a rotating shaft 122 and a supporting rod 123, the mounting plate 121 is connected to the power output end of the linear driving mechanism 200, the rotating shaft 122 and the supporting rod 123 are both protruded on the same side of the mounting plate 121 along a direction from the linear driving mechanism 200 to a direction away from the linear driving mechanism 200, the rotating shaft 122 is used for movably sleeving the first end 111 of the tray 110, and the supporting rod 123 is used for supporting the second end 112 of the tray 110.

Specifically, the mounting plate 121 may include a first plate 1211 parallel to the extending and retracting direction of the linear driving mechanism 200 and a second plate 1212 connected to the top of the first plate 1211 and parallel to the vertical direction, the first plate 1211 is configured to be directly connected to the output end of the linear driving mechanism 200, and the rotating shaft 122 and the supporting rod 123 are both convexly disposed on the second plate 1212 and perpendicular to the second plate 1212.

In the case back pass device provided in this embodiment, the mounting base 120 only includes the mounting plate 121, the rotating shaft 122 and the supporting rod 123, and the case back pass device has a simple structure, is convenient to manufacture, is light in weight, and is beneficial to reducing the load and energy consumption of the linear driving mechanism 200.

In another embodiment of the present application, referring to FIG. 2, the tray 110 has a chute 113 extending from the first end 111 of the tray 110 to the second end 112 of the tray 110, the chute 113 being used to guide the sleeve die to slide back to the transport line.

Specifically, the tray 110 may include a bottom plate 114 and two flanges 115, the bottom plate 114 is configured to be rectangular, the two flanges 115 are disposed at the other two ends of the bottom plate 114 except for the first end 111 and the second end 112, both of the two flanges 115 extend along a direction from the first end 111 of the tray 110 to the second end 112 of the tray 110, and a sliding slot 113 is formed between the two flanges 115.

The cover die returning device provided by this embodiment can slide the cover die from the tray 110 into the returning conveying line smoothly by the chute 113, which is beneficial to improving the returning efficiency.

In another embodiment of the present application, referring to fig. 2, the supporting mechanism 100 further includes an elastic member 130, two ends of the elastic member 130 are respectively connected to the mounting seat 120 and the second end 112 of the tray 110, and the elastic member 130 is used for providing a restoring force to the second end 112 of the tray 110, so that the second end 112 of the tray 110 is rotated from a position raised relative to the first end 111 of the tray 110 to be supported on the mounting seat 120.

Specifically, the elastic member 130 may be a tension spring, an elastic cord, or the like. When the tray 110 is horizontally supported on the mount 120, the elastic member 130 is in a natural state or a stretched state, and after the tray 110 is lifted from the mount 120, the elastic member 130 is in an extended state.

In the mold set returning device provided in this embodiment, after the second end 112 of the tray 110 is lifted from the mounting seat 120 relative to the first end 111 of the tray 110 and the mold set slides into the external mounting surface from the tray 110, in the process that the linear driving mechanism 200 drives the mounting seat 120 to return to the initial state, the second end 112 of the tray 110 returns to the mounting seat 120 under the action of gravity and the restoring force provided by the elastic member 130, so that the tray 110 is prevented from being overturned too much when the second end 112 is lifted, and the tray 110 is favorable for being quickly reset.

In another embodiment of the present application, referring to fig. 1 and fig. 2, the cover mold returning device further includes a material detecting sensor 400 and a controller (not shown), the material detecting sensor 400 is disposed on the tray 110 and is configured to detect whether there is a material on the tray 110, the controller is electrically connected to the material detecting sensor and the linear driving mechanism 200 respectively, and the controller is configured to control the linear driving mechanism 200 to drive the supporting mechanism 100 to move to the first end 111 of the tray 110 and the returning conveying line to have the same height after the material detecting sensor 400 detects the material.

Specifically, the material sensor may be a photoelectric sensor, and a receiving end and an emitting end of the photoelectric sensor are respectively disposed at the other two ends of the tray 110 except for the first end 111 and the second end 112, and specifically, when the tray 110 includes the two flanges 115, the receiving end and the emitting end of the photoelectric sensor are respectively disposed on the two flanges 115.

In the die-set returning device provided by this embodiment, after the material detecting sensor 400 detects that the die-set is placed on the tray 110, the material detecting sensor 400 sends a signal indicating that the die-set exists on the tray 110 to the controller, and the controller receives the signal and controls the linear driving mechanism 200 to drive the mounting base 120 to move to a position where the first end 111 of the tray 110 is equal to the height of the external returning conveying line, so that the die-set slides into the returning conveying line from the tray 110. By the arrangement, the automatic or semi-automatic die sleeve returning device can be realized, and the die sleeve returning efficiency can be improved.

In another embodiment of the present application, referring to fig. 3, the cover mold turning device further includes a frame 500, the frame 500 includes two opposite side plates 510, a guiding structure 520 disposed along the extension direction of the linear driving mechanism 200 is disposed between the two side plates 510, the guiding structure 520 is a guide rod 523 and/or a guide rail 521, and the guiding structure 520 is configured to slidably engage with the mounting base 120 to guide the mounting base 120 to move along the extension direction of the linear driving mechanism 200.

The guide structure 520 may be a guide rod 523 or a guide rail 521, and the guide structure 520 may further include the guide rail 521 and the guide rod 523. In this embodiment, the guiding structure 520 includes a guide rail 521 and a guide rod 523, and the specific structure is that a guide rail 521 is disposed on a surface of each side plate 510 close to the other side plate 510, the two guide rails 521 have the same height and are disposed along a telescopic direction of the linear driving mechanism 200, the two guide rails 521 are respectively in sliding fit with two opposite sides of the mounting seat 120, two cross rods 522 are disposed between the two side plates 510, one cross rod 522 of the two cross rods 522 is connected to the same end of the two guide rails 521, the other cross rod 522 of the two cross rods 522 is connected to the other end of the two guide rails 521, a plurality of guide rods 523 are connected between the two cross rods 522, each guide rod 523 is disposed along the telescopic direction of the linear driving mechanism 200 and penetrates through the middle of the mounting seat 120, and the mounting seat 120 can move smoothly under the dual guiding action of the guide rods 523 and the guide rail 521.

The die sleeve return device provided by this embodiment is provided with the guide rail 521 and/or the guide rod 523, so that the mounting base 120 can move stably along the extension direction of the linear driving mechanism 200, thereby avoiding the tray 110 from shaking as much as possible, and ensuring that the die sleeve does not fall off the tray 110 before sliding into the return transmission line.

In another embodiment of the present application, referring to fig. 2 and 4, the pushing mechanism 300 further includes a connecting rod 320, one end of the connecting rod 320 is provided with a pushing wheel 310, the other end of the connecting rod 320 is connected to one of the two side plates 510 close to the second end 112 of the tray 110, and the height of the connecting rod 320 on the corresponding side plate 510 is adjustable.

Specifically, the frame 500 may be provided with mounting grooves 511 extending in a vertical direction for mounting the connection rods 320, and the connection rods 320 may be locked at different heights of the mounting grooves 511 by means of screw connection, snap connection, or the like.

The cover die return device provided by this embodiment can adjust the height of the connecting rod 320 on the side plate 510 according to the parameters of the cover die, such as the weight and the shape, and further adjust the height of the second end 112 of the tray 110 raised relative to the first end 111 of the tray 110, so that various types of cover dies can slide into the external return conveying line from the tray 110 at a relatively proper speed, and the cover die or the return conveying line is prevented from being damaged as much as possible.

In another embodiment of the present application, referring to fig. 4, the frame 500 is further provided with a control panel 530, the control panel 530 is connected between the two side plates 510 and is located on a side of the frame 500 away from the linear driving mechanism 200, and the control panel 530 is provided with an on-off key 531 for controlling the start and stop of the linear driving mechanism 200.

In the sleeve mold returning device provided in this embodiment, the control panel 530 and the linear driving mechanism 200 are respectively disposed on two opposite sides of the frame 500, so that an operator can conveniently operate the switch key 531 on the control panel 530.

Specifically, the control panel 530 may further be provided with an emergency stop key 532 and a power key 533, wherein the emergency stop key 532 may control the linear driving mechanism 200 to be emergency stopped or reset; the power key 533 can control the power source of the jacket mold returning device to supply power to the linear driving mechanism 200, the controller, and the like, or stop supplying power to the linear driving mechanism 200, the controller, and the like.

In another embodiment of the present application, referring to fig. 4, the bottom of the frame 500 is provided with a support foot 550 and a roller 540, the support foot 550 and the roller 540 being configured to alternatively support the frame 500.

Specifically, the number of the supporting legs 550 and the number of the rollers 540 may be three, four, etc., and may be set as needed, which is not limited herein. The supporting foot 550 is detachably disposed at the bottom of the rack 500, after the supporting foot 550 is mounted at the bottom of the rack 500, the rack 500 is supported by the supporting foot 550 on an external mounting surface such as the ground, and at this time, the roller 540 just contacts or hangs over the external mounting surface such as the ground, and after the supporting foot 550 is detached from the bottom of the rack 500, the rack 500 is supported by the roller 540 on the external mounting surface such as the ground.

In the present embodiment, the frame 500 of the jacket mold returning device can be fixed on an external installation surface such as the ground, or can slide on the external installation surface such as the ground, and the applicability is good.

The above description is only a preferred embodiment of the present application and should not be taken as limiting the present application, and any modifications, equivalents, improvements, etc. made within the spirit and principle of the present application should be included in the protection scope of the present application.

Claims (10)

1. A die sleeve returning device, wherein the die sleeve returning device comprises:

the supporting mechanism comprises a tray and a mounting seat, the tray is used for supporting the sleeve die and is provided with a first end and a second end which are oppositely arranged, and the first end of the tray is rotatably connected with the mounting seat;

the linear driving mechanism is connected with the mounting seat and is used for driving the mounting seat to move so as to drive the tray to move;

the pushing mechanism comprises a pushing wheel, the pushing wheel is arranged on a moving path of the tray and can abut against the second end of the tray in a rolling friction mode, so that the second end of the tray moves to the same height as the return conveying line at the first end of the tray, a preset height is lifted from the mounting seat relative to the first end of the tray, and the cover die slides into the return conveying line from the tray.

2. The die transfer assembly of claim 1, wherein the linear driving mechanism is disposed at an angle with respect to the vertical direction, the linear driving mechanism is configured to drive the mounting base to move in a first horizontal direction and a vertical direction simultaneously, and the pushing wheel is disposed below the second end of the tray around a second horizontal direction perpendicular to the first horizontal direction.

3. The cover die pass-back device according to claim 2, wherein the mounting base comprises a mounting plate, a rotating shaft and a supporting rod, the mounting plate is connected to the power output end of the linear driving mechanism, the rotating shaft and the supporting rod are both protruded from the same side of the mounting plate along the direction from the direction close to the linear driving mechanism to the direction away from the linear driving mechanism, the rotating shaft is used for movably sleeving the first end of the tray, and the supporting rod is used for supporting the second end of the tray.

4. The die transfer assembly of claim 1, wherein the pallet has a chute extending from the first end of the pallet to the second end of the pallet, the chute being configured to guide the die into the transfer line.

5. The apparatus according to claim 1, wherein the supporting mechanism further comprises an elastic member, two ends of the elastic member are respectively connected to the mounting seat and the second end of the tray, and the elastic member is configured to provide a restoring force to the second end of the tray, so that the second end of the tray rotates from a position raised relative to the first end of the tray to be supported on the mounting seat.

6. The cover die return device according to claim 1, further comprising a material detection sensor and a controller, wherein the material detection sensor is disposed on the tray and configured to detect whether a material is on the tray, the controller is electrically connected to the material sensor and the linear driving mechanism, respectively, and the controller is configured to control the linear driving mechanism to drive the supporting mechanism to move to a position where the first end of the tray is at the same height as the return conveying line after the material detection sensor detects the material.

7. The die sleeve return device according to any one of claims 1 to 6, wherein the die sleeve rotary device further comprises a frame, the frame comprises two opposite side plates, a guide structure is disposed between the two side plates along the extension direction of the linear driving mechanism, the guide structure is a guide rod and/or a guide rail, and the guide structure is configured to slidably engage with the mounting seat to guide the mounting seat to move along the extension direction of the linear driving mechanism.

8. The die set back device according to claim 7, wherein the pushing mechanism further comprises a connecting rod, one end of the connecting rod is provided with the pushing wheel, the other end of the connecting rod is connected to the side plate close to the second end of the tray, and the height of the connecting rod on the corresponding side plate is adjustable.

9. The cover die return device according to claim 7, wherein the frame further comprises a control panel connected between the two side plates and located on a side of the frame away from the linear driving mechanism, and the control panel is provided with a switch for controlling the linear driving mechanism to start and stop.

10. The die transfer assembly of claim 7, wherein the bottom of the frame has rollers and support feet configured to alternatively support the frame.

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