Transfer device and circulating conveying line

Abstract

The utility model relates to the technical field of stator processing, in particular to a transfer device and a circulating conveyor line, the transfer device comprises a first assembly line, a second assembly line and a transfer line body, the first assembly line comprises a first die guide rail and a first driving guide rail, and the second assembly line comprises a second die guide rail and a second driving guide rail. The transfer line body comprises a transfer mold guide rail, a transfer driving guide rail and a transfer unit, the transfer unit can drive the transfer mold guide rail and the transfer driving guide rail to be switched between a first position and a second position, the transfer unit is in butt joint with the first assembly line at the first position, and the transfer unit is in butt joint with the second assembly line at the second position. According to the transfer device and the circulating conveying line, transfer and circulating conveying of molds can be achieved, and the transfer device and the circulating conveying line have the advantages of being reasonable in layout, easy to assemble and maintain, high in production efficiency and the like.

Description

Technical Field

[0001] The utility model relates to the technical field of stator processing, in particular to a transfer device and a circulating conveying line. Background Art

[0002] Stator processing includes paper inserting, winding, and wire embedding. In order to improve efficiency, it is generally processed through an assembly line. Specifically, paper punching, wire winding, and wire embedding stations are set on the assembly line. After the paper punching and wire winding stations, the mold moves to the wire embedding station to push the insulating paper and coil into the stator core to complete the processing and assembly of the stator. Since the mold needs to circulate between the stations all the time, the assembly line needs to be formed into a circulating conveyor line to transport the mold.

[0003] In the prior art, a utility model patent with publication number "CN203229194U" and name "Motor Automatic Assembly Circular Conveyor Line" discloses a circular conveyor line, including upper and lower conveying mechanisms and head and tail lifting mechanisms, which can realize the circular conveying of carriers. However, this kind of circular conveyor line still has certain problems: 1. The use of upper and lower conveying mechanisms will cause the height of the entire conveyor line to be very high, which is not conducive to the layout and maintenance of the production line; 2. A corresponding pushing mechanism needs to be set between the upper and lower conveying mechanisms and the head and tail lifting mechanisms to transfer the carrier, which has a complex structure and high cost; 3. The upper conveying mechanism and the lower conveying mechanism are respectively transported by chains and conveyor belts, and each carrier moves synchronously. When one of the carriers needs to stop for processing, the other carriers also need to stop synchronously, which is not conducive to the production rhythm of the product and has low production efficiency. Utility Model Content

[0004] In order to solve the technical problem in the prior art that an additional pushing mechanism needs to be set up when a carrier is transferred in a circulating conveyor line, the utility model proposes a transfer device, which directly drives the mold to move on the first assembly line and the transfer line body through a first drive unit, and directly drives the mold to move on the second assembly line and the transfer line body through a second drive unit, thereby simplifying the overall structure and saving costs.

[0005] The technical solution of this utility model:

[0006] A transfer device, comprising:

[0007] A first assembly line, the first assembly line comprising a first mold guide rail and a first drive guide rail;

[0008] A second assembly line, the second assembly line comprising a second mold guide rail and a second drive guide rail;

[0009] The transfer line body includes a transfer mold guide rail, a transfer drive guide rail and a transfer unit. The transfer unit can drive the transfer mold guide rail and the transfer drive guide rail to switch between a first position and a second position. When moving to the first position, the transfer mold guide rail is docked with the first mold guide rail, and the transfer drive guide rail is docked with the first drive guide rail. The first drive unit can drive the mold to move on the first assembly line and the transfer line body; when moving to the second position, the transfer mold guide rail is docked with the second mold guide rail, and the transfer drive guide rail is docked with the second drive guide rail. The second drive unit can drive the mold to move on the second assembly line and the transfer line body.

[0010] Furthermore, the second assembly line is coplanar and parallel to the side of the first assembly line, and the movement direction of the transfer mold guide rail and the transfer drive guide rail during transfer switching is perpendicular to the conveying direction of the first assembly line and the second assembly line.

[0011] Furthermore, the transfer line also includes a transfer bottom plate, the transfer mold guide rail and the transfer drive guide rail are arranged on the top of the transfer bottom plate, and the transfer unit is arranged at the bottom of the transfer bottom plate.

[0012] Furthermore, the transfer unit is the mover of the linear motor, and the transfer line body also includes a fixed bracket, on which the stator of the linear motor is correspondingly arranged; the first drive unit and the second drive unit are the movers of the linear motor, and the first assembly line and the second assembly line are correspondingly provided with stators of the linear motor.

[0013] Furthermore, the mold includes a mold base plate and a mold head, the mold base plate is provided with a connecting block, the first drive unit and the second drive unit are correspondingly provided with connecting heads that can extend out to cooperate with the connecting block and drive the mold base plate to move; a mold slider is provided at the bottom of the mold base plate, and the first drive unit and the second drive unit are provided with a driving slider.

[0014] Furthermore, a limiter is also provided on the mold base plate, and the limiter includes a limit pin which is hingedly arranged on the mold base plate in a vertically swingable manner, and a return spring is provided between the first end of the limit pin and the mold base plate. In the initial state, the return spring pushes the first end of the limit pin so that the second end of the limit pin can be limited by the limit seat arranged on the transfer base plate, and the mold base plate cannot slide along the transfer mold guide rail; the limiter is arranged on one side of the connecting block, and the connecting heads on the first driving unit and the second driving unit are also fixedly connected to an ejection block. When the connecting head is extended and plugged into the connecting block, the ejection block touches and presses the first end of the limit pin, so that the second end of the limit pin is released from the limit of the limit seat.

[0015] Furthermore, a positioning block is provided on the mold base plate, and a plurality of processing stations are provided on the first assembly line and the second assembly line, and each processing station is provided with a positioning head cooperating with the positioning block to position the mold base plate and the mold head; at least one first driving unit / second driving unit is provided corresponding to each processing station; a positioning groove is also provided on the mold head, and a positioning pin is provided on the mold base plate correspondingly, which can cooperate with the positioning groove to position the mold head and prevent it from rotating.

[0016] Furthermore, the transfer line also includes a first detection switch for detecting whether the transfer unit, transfer mold guide rail and transfer drive guide rail are located in the first position, and a second detection switch for detecting whether the transfer unit, transfer mold guide rail and transfer drive guide rail are located in the second position.

[0017] Another aspect of the present invention provides a circulating conveying line, comprising a transfer device as described in any one of the above, wherein the number of the transfer line bodies is two, which are respectively arranged at the two ends of the first assembly line and the second assembly line.

[0018] Furthermore, a product conveyor line is provided on the outside of the circulating conveyor line, and the product conveyor line clamps the unprocessed products from the product conveyor line to the final station of the circulating conveyor line for processing through a clamping component, and clamps the processed products from the circulating conveyor line to the product conveyor line again through the clamping component.

[0019] After adopting the above technical scheme, the transfer device and the circulating conveyor line provided by the utility model have the following beneficial effects compared with the prior art: the transfer device provided by the utility model can realize the transfer of the mold between the first assembly line and the second assembly line, and compared with the prior art, this embodiment directly drives the mold to move on the first assembly line and the transfer line body through the first drive unit, and directly drives the mold to move on the second assembly line and the transfer line body through the second drive unit, without the need to additionally set up a pushing mechanism to transfer the mold as in the prior art, thereby simplifying the overall structure and saving costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic structural diagram of a circulating conveyor line including a transfer device of the utility model at a first viewing angle;

[0021] Figure 2 for Figure 1 A in the enlarged view;

[0022] Figure 3 It is a schematic structural diagram of the transfer bottom plate and the mold of the utility model in the first viewing angle;

[0023] Figure 4It is a schematic structural diagram of the transfer bottom plate and the mold of the utility model in a second viewing angle;

[0024] Figure 5 It is a structural schematic diagram of the limiter of the utility model;

[0025] Figure 6 This is a schematic diagram of the structure of the first drive unit / second drive unit of the utility model;

[0026] Figure 7 It is a schematic structural diagram of the circulating conveyor line including the transfer device of the utility model at a second viewing angle;

[0027] Figure 8 for Figure 7 Enlarged view of point B in .

[0028] in,

[0029] First assembly line 1, first mold guide rail 11, first drive guide rail 12, first drive unit 13, drive base plate 131, drive slide block 132, connector 133, ejector block 134, stator 135;

[0030] Second assembly line 2, second mold guide rail 21, second drive guide rail 22, second drive unit 23;

[0031] Transfer line body 3, transfer bottom plate 31, transfer mold guide rail 311, transfer drive guide rail 312, transfer unit 313, transfer switching slider 314, fixed bracket 32, transfer switching guide rail 321, limit seat 322, first detection switch 323, second detection switch 324, photoelectric detection module 325;

[0032] Mold 4, mold bottom plate 41, connecting block 411, connecting groove 4111, limiting pin 412, return spring 413, positioning block 414, positioning pin 415, mold slide block 416, mold head 42, positioning groove 421;

[0033] Paper punching station 51, winding station 52, wire embedding station 53, positioning head 54;

[0034] Product conveying line 6, product 61, clamping component 62. DETAILED DESCRIPTION

[0035] 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. The following description of at least one exemplary embodiment is actually only illustrative and is by no means a limitation on the utility model and its application or use. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the utility model.

[0036] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, it indicates the presence of features, steps, operations, devices, components and / or combinations thereof.

[0037] In the description of the present utility model, it needs to be understood that the directions or positional relationships indicated by directional words such as "front, back, up, down, left, right", "lateral, vertical, perpendicular, horizontal" and "top, bottom" are usually based on the directions or positional relationships shown in the drawings, and are only for the convenience of describing the present utility model and simplifying the description. Unless otherwise specified, these directional words do not indicate or imply that the device or element referred to must have a specific direction or be constructed and operated in a specific direction, and therefore cannot be understood as limiting the scope of protection of the present utility model; the directional words "inside and outside" refer to the inside and outside relative to the contours of each component itself.

[0038] In addition, it should be noted that the use of terms such as "first" and "second" to limit components is only for the convenience of distinguishing the corresponding components. If not otherwise stated, the above terms have no special meaning and therefore cannot be understood as limiting the scope of protection of the utility model.

[0039] like Figure 1-6 As shown, the present embodiment provides a transfer device, which includes a first assembly line 1, a second assembly line 2 and a transfer line body 3, wherein the first assembly line 1 and the second assembly line 2 are respectively provided with a plurality of processing stations, for example, a winding station 52 and a wire embedding station 53 can be provided on the first assembly line 1, and a paper punching station 51 can be provided on the second assembly line 2, and the transfer line body 3 can be transferred between the first assembly line 1 and the second assembly line 2 to realize the circulation of the mold 4 between the first assembly line 1 and the second assembly line 2, and the mold 4 can be a winding and embedding mold of the stator core.

[0040] Specifically, the first assembly line 1 includes a first mold guide rail 11 and a first drive guide rail 12, the second assembly line 2 includes a second mold guide rail 21 and a second drive guide rail 22, the mold 4 can slide on the first mold guide rail 11 or the second mold guide rail 12, the first assembly line 1 is also provided with a first drive unit 13, the first drive unit 13 can slide on the first drive guide rail 12, the second assembly line 2 is also provided with a second drive unit 23, the second drive unit 23 can slide on the second drive guide rail 22. The first drive guide rail 12 is arranged on the side of the first mold guide rail 11, preferably there are two first mold guide rails 11, and there is one first drive guide rail 12; the second drive guide rail 22 is arranged on the side of the second mold guide rail 21, preferably there are also two second mold guide rails 21, and there is one second drive guide rail 22.

[0041] Further, the transfer line body 3 includes a transfer mold rail 311, a transfer drive rail 312 and a transfer unit 313, the mold 4 can slide on the transfer mold rail 311, the first drive unit 13 or the second drive unit 23 can move on the transfer drive rail 312, and the transfer unit 313 can drive the transfer mold rail 311 and the transfer drive rail 312 to switch between the first position and the second position. Specifically, when moving to the first position, the transfer mold rail 311 docks with the first mold rail 11, the transfer drive rail 312 docks with the first drive rail 12, and the first drive unit 13 can drive the mold 4 to move on the first assembly line 1 and the transfer line body 3; when moving to the second position, the transfer mold rail 311 docks with the second mold rail 21, the transfer drive rail 312 docks with the second drive rail 22, and the second drive unit 23 can drive the mold 4 to move on the second assembly line 2 and the transfer line body 3. In this way, the mold 4 can be transferred from the first assembly line 1 to the second assembly line 2 via the transfer line body 3 , or from the second assembly line 2 to the first assembly line 1 via the transfer line body 3 .

[0042] In this way, a transfer device provided in this embodiment can realize the transfer of the mold 4 between the first assembly line 1 and the second assembly line 2 through the transfer line body 3. Moreover, compared with the prior art, this embodiment directly drives the mold 4 to move on the first assembly line 1 and the transfer line body 3 through the first drive unit 13, and directly drives the mold 4 to move on the second assembly line 2 and the transfer line body 3 through the second drive unit 23, without the need to additionally set up a pushing mechanism to transfer the mold as in the prior art, thereby simplifying the overall structure and saving costs.

[0043] Preferably, the second assembly line 2 in this embodiment is coplanar and parallel to the side of the first assembly line 1, and the movement direction of the transfer mold guide 311 and the transfer drive guide 312 during transfer switching is perpendicular to the conveying direction of the first assembly line 1 and the second assembly line 2. In this way, compared with the method of setting up and down transmission mechanisms in the prior art, the height of the entire conveyor line is reduced, which is conducive to the layout and maintenance of the production line. In addition, the transfer mold guide 311 and the transfer drive guide 312 in this embodiment move linearly between the first assembly line 1 and the second assembly line 2 for switching, and the drive rails on each assembly line are located on the same side of the corresponding mold rails, for example Figure 1 The winding machine, wire embedding machine and other processing equipment can be conveniently arranged on one side of the production line away from the drive rail, for example Figure 1 and if only the mold guide rail is moved for docking during switching without moving the drive guide rail, then the drive guide rails on the two assembly lines need to be set on the outside, which is not conducive to the layout of the above-mentioned processing equipment.

[0044] Preferably, the transfer line 3 of this embodiment further includes a first detection switch 323 for detecting whether the transfer unit 313, the transfer mold guide rail 311 and the transfer drive guide rail 312 are located at the first position, and when they are located at the first position, the first drive unit 13 is controlled to drive the mold 4 to the transfer line 3; and a second detection switch 324 for detecting whether the transfer unit 313, the transfer mold guide rail 311 and the transfer drive guide rail 312 are located at the second position, and when they are located at the second position, the second drive unit 23 is controlled to drive the mold 4 to the transfer line 3. The first detection switch 323 and the second detection switch 324 can be selected but not limited to proximity switches.

[0045] like Figure 3-5 As shown, the transfer line body 3 also includes a transfer bottom plate 31, and the transfer unit 313 is arranged at the bottom of the transfer bottom plate 31. The transfer unit 313 is a mover of a linear motor. The transfer line body 3 also includes a fixed bracket 32, and the fixed bracket 32 ​​is provided with a stator 135 of a linear motor, and the fixed bracket 32 ​​is also provided with a transfer switching guide rail 321, and a transfer switching slider 314 is correspondingly arranged at the bottom of the transfer bottom plate 31. The top of the transfer bottom plate 31 is provided with a transfer mold guide rail 311 and a transfer drive guide rail 312, the first drive unit 13 and the second drive unit 23 are movers of a linear motor, and the first assembly line 1 and the second assembly line 2 are correspondingly provided with a stator 135 of a linear motor, and the mold 4 is also arranged on the top of the transfer bottom plate 31, and the mold 4 includes a mold bottom plate 41 and a mold head 42, and a mold slider 416 is arranged at the bottom of the mold bottom plate 41, and the first drive unit 13 and the second drive unit 23 are connected to the drive slider 132 through the drive bottom plate 131.

[0046] Furthermore, the mold bottom plate 41 is also provided with a connection block 411, and a connection groove 4111 with a side opening is formed on the connection block 411. The drive bottom plates 131 of the first drive unit 13 and the second drive unit 23 are provided with a connection head 133 corresponding to the connection block 411, which can extend to cooperate with the connection groove 4111 and drive the mold bottom plate 41 to move along the mold guide rail. The connection head 133 can be driven by a cylinder, but is not limited to it. In this way, the first drive unit 13 or the second drive unit 23 can move to the mold 4 that needs to move and drive it to move.

[0047] During transfer switching, it is necessary to prevent the mold 4 from sliding along the mold guide rail. To this end, a limiter is further provided on the mold base plate 41 in this embodiment, and the limiter includes a limit pin 412 which is vertically swingably hinged on the mold base plate 41, and a return spring 413 is provided between the first end of the limit pin 412 and the mold base plate 41. In the initial state, that is, during transfer switching or other waiting processes where the mold 4 needs to remain stationary, the return spring 413 pushes the first end of the limit pin 412 so that the second end of the limit pin 412 can be limited by the limit seat 322 provided on the transfer base plate 31, and the mold base plate 41 cannot slide along the transfer mold guide rail 311. The limiter is arranged on one side of the connecting block 411, and the connecting head 133 on the second driving unit 23 is also fixedly connected to the ejection block 134, that is, the connecting head 133 and the ejection block 134 move together. When the connecting head 133 is extended and plugged into the connecting block 411, the ejection block 134 contacts the first end of the limiting pin 412 to make the second end of the limiting pin 412 disengage from the limiting position of the limiting seat 322. At this time, the mold 4 can be driven to move by the first driving unit 13 or the second driving unit 23.

[0048] In this embodiment, a positioning block 414 is further provided on the mold base plate 41, and a plurality of processing stations are provided on the first assembly line 1 and the second assembly line 2. Each processing station is provided with a positioning head 54 that can extend and cooperate with the positioning block 414 to position the mold base plate 41 and the mold head 42. At least one first drive unit 13 / second drive unit 23 is provided corresponding to each processing station. When the mold 4 is transported to the corresponding station, the mold 4 can be positioned so that the first drive unit 13 or the second drive unit 23 can be released, thereby improving production efficiency. For example, in this embodiment, a winding station 52 and a wire embedding station 53 are arranged on the first assembly line 1. A first driving unit 13 is arranged corresponding to the winding station 52. The first driving unit 13 is used to transport one or more molds 4 to the winding station 52 for winding. After the first driving unit 13 transports the mold 4 to the winding station 52, the winding station 52 is provided with an extendable positioning head 54 to position each mold 4. The first driving unit 13 can be released to prepare to drive another batch of molds 4 to the winding station 52; another first driving unit 13 ( Figure 1(not shown), the first driving unit 13 is used to transport the mold 4 from the winding station 52 to the wire inserting station 53 and then to the transfer line body 3. Similarly, when the first driving unit 13 transports the mold 4 to the wire inserting station 53 for wire inserting, the wire inserting station 53 is provided with an extendable positioning head 54 to position the mold 4, and then transport it to the transfer line body 3 after wire inserting. A paper punching station 51 is provided on the second assembly line 2, and a second driving unit 23 is provided corresponding to the paper punching station 51. The second driving unit 23 is used to transport the mold 4 from the transfer line body 3 to the paper punching station 51, and then continue to transport it downstream, for example, to another transfer line body 3 described below, to form a cycle.

[0049] In addition, when the first driving unit 13 or the second driving unit 23 drives the mold 4 to move, and when the mold 4 is in a non-winding station where indexing is not required, it is necessary to prevent the mold head 42 from rotating relative to the mold base plate 41. To this end, the present embodiment further provides a positioning groove 421 on the mold head 42, and a corresponding positioning pin 415 is provided on the mold base plate 41, which can cooperate with the positioning groove 421 to position the mold head 42 to prevent it from rotating. The positioning pin 415 can be pushed by an elastic member to maintain a positioning lock with the positioning groove 421; when indexing rotation is required, the positioning pin 415 can be actively or passively retracted to release the positioning lock with the positioning groove 421.

[0050] Combination Figure 7-8 This embodiment also provides a circulating conveyor line, including the aforementioned transfer device, and the transfer line bodies 3 are two, respectively arranged at the two ends of the first assembly line 1 and the second assembly line 2. That is, the circulating conveyor line includes the first assembly line 1, the second assembly line 2, the first transfer line body 3 arranged at the first end of the first assembly line 1 and the second assembly line 2, and the second transfer line body 3 arranged at the second end of the first assembly line 1 and the second assembly line 2, so as to form a circulating conveyor line, and the mold 4 can circulate on the circulating conveyor line.

[0051] Furthermore, a product conveyor line 6 is provided on the outside of the circulating conveyor line. The product conveyor line 6 is arranged on the outside of the first transfer line body 3 and is used to convey the product 61. The product conveyor line 6 clamps the unprocessed product 61, i.e., the stator core, from the product conveyor line 6 to the last station of the circulating conveyor line, i.e., the wire embedding station 53 for processing through the clamping component 62, and clamps the processed product 61, i.e., the stator, from the circulating conveyor line to the product conveyor line 6 for further transportation through the clamping component 62.

[0052] When the circulating conveyor line of this embodiment is working, a plurality of molds 4 circulate on the circulating conveyor line:

[0053] First, a mold 4 is docked with the second assembly line 2 under the action of the first transfer line body 3. After docking, the first second drive unit 23 transports the mold 4 to the paper punching station 51. The paper punching station 51 is provided with a positioning head 54 to position the mold 4 at the current position. The first second drive unit 23 can drive the new mold 4 again.

[0054] There are two paper punching stations 51. After the paper punching is completed, another second driving unit 23 transports the mold 4 stuffed with insulating paper to another transfer line 3. The other transfer line 3 can transfer six molds 4 at the same time. Photoelectric detection modules 325 are respectively arranged on the transfer line 3 for detection. When six molds 4 are detected, the six molds 4 are transferred and switched to be docked with the first assembly line 1.

[0055] Next, the first first driving unit 13 transports the six molds 4 together to the winding station 52. The winding station 52 is a six-head winding machine. The winding station 52 is provided with a positioning head 54 to position the mold bottom plates 41 of these molds 4 at the current position. The first first driving unit 13 can drive a new batch of molds 4 again.

[0056] Then, after the winding is completed, the second first driving unit 13 drives the six molds 4 with coils to the wire embedding station 53 for wire embedding in sequence. A positioning head 54 is provided at the wire embedding station 53 to position the current mold 4. The clamping component 62 clamps an unprocessed stator core from the product conveyor line 6 and places it on the mold 4 at the wire embedding station 53 for wire embedding and paper pushing. After completion, the clamping component 62 clamps the processed stator core to the product conveyor line 6 for continued transportation. The mold 4 is driven by the second first driving unit 13 to the first transfer line body 3, and then transferred to the second assembly line 2 for circulation. The second mold 4 at the rear end can be positioned at the wire embedding station 53 for wire embedding and paper pushing. Before transportation, the first driving unit 13 retreats the distance of a mold 4 to avoid it, and pushes the current second mold 4 to the first transfer line body 3 after processing is completed, and so on until all six molds 4 are transported away, and then go to the winding station 52 to receive a new batch of six molds 4.

[0057] Among them, the number of each driving unit, the number of each workstation, the number of molds 4 transported in a single time on each transfer line 3, etc. can all be set according to the required rhythm.

[0058] It can be seen from the above content that the transfer device and circulating conveying line provided in this embodiment can realize the transfer and circulating conveying of molds, and have the advantages of reasonable layout, easy assembly and maintenance, and high production efficiency.

[0059] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A transfer device, characterized in that: include: A first assembly line (1), the first assembly line (1) comprising a first mold guide rail (11) and a first drive guide rail (12); A second assembly line (2), the second assembly line (2) comprising a second mold guide rail (21) and a second drive guide rail (22); A transfer line body (3), the transfer line body (3) comprising a transfer mold guide rail (311), a transfer drive guide rail (312) and a transfer unit (313), the transfer unit (313) being capable of driving the transfer mold guide rail (311) and the transfer drive guide rail (312) to switch between a first position and a second position; when moving to the first position, the transfer mold guide rail (311) docks with the first mold guide rail (11), the transfer drive guide rail (312) docks with the first drive guide rail (12), and the first drive unit (13) is capable of driving the mold (4) to move on the first assembly line (1) and the transfer line body (3); when moving to the second position, the transfer mold guide rail (311) docks with the second mold guide rail (21), the transfer drive guide rail (312) docks with the second drive guide rail (22), and the second drive unit (23) is capable of driving the mold (4) to move on the second assembly line (2) and the transfer line body (3).

2. The transfer device according to claim 1, characterized in that: The second assembly line (2) is coplanar and parallel to the side of the first assembly line (1), and the movement direction of the transfer mold guide rail (311) and the transfer drive guide rail (312) during transfer switching is perpendicular to the conveying direction of the first assembly line (1) and the second assembly line (2).

3. The transfer device according to claim 2, characterized in that: The transfer line (3) further comprises a transfer bottom plate (31), the top of which is provided with the transfer mould guide rail (311) and the transfer drive guide rail (312), and the bottom of which is provided with the transfer unit (313).

4. The transfer device according to claim 3, characterized in that: The transfer unit (313) is a mover of a linear motor, and the transfer line body (3) further comprises a fixed bracket (32), on which a stator (135) of the linear motor is correspondingly arranged; the first drive unit (13) and the second drive unit (23) are movers of a linear motor, and the first assembly line (1) and the second assembly line (2) are correspondingly provided with stators (135) of the linear motor.

5. The transfer device according to claim 4, characterized in that: The mold (4) comprises a mold base plate (41) and a mold head (42); a connecting block (411) is provided on the mold base plate (41); the first drive unit (13) and the second drive unit (23) are correspondingly provided with connecting heads (133) capable of extending to cooperate with the connecting block (411) and drive the mold base plate (41) to move; a mold slider (416) is provided at the bottom of the mold base plate (41); and a driving slider (132) is provided on the first drive unit (13) and the second drive unit (23).

6. The transfer device according to claim 5, characterized in that: The mold bottom plate (41) is also provided with a limiter, and the limiter includes a limit pin (412) hingedly arranged on the mold bottom plate (41) in a vertically swingable manner, and a return spring (413) is arranged between the first end of the limit pin (412) and the mold bottom plate (41). In an initial state, the return spring (413) pushes the first end of the limit pin (412) so that the second end of the limit pin (412) can be limited by a limit seat (322) arranged on the transfer bottom plate (31). The bottom plate (41) cannot slide along the transfer mold guide rail (311); the limiter is arranged on one side of the connection block (411); the connectors (133) on the first drive unit (13) and the second drive unit (23) are also fixedly connected to an ejection block (134); when the connector (133) is extended and plugged into the connection block (411), the ejection block (134) contacts and presses the first end of the limit pin (412), so that the second end thereof is separated from the limit of the limit seat (322).

7. The transfer device according to claim 6, characterized in that: The mold base plate (41) is also provided with a positioning block (414); the first assembly line (1) and the second assembly line (2) are provided with a plurality of processing stations; each processing station is provided with a positioning head (54) cooperating with the positioning block (414) to position the mold base plate (41) and the mold head (42); at least one first drive unit (13) / second drive unit (23) is provided corresponding to each processing station; the mold head (42) is also provided with a positioning groove (421); the mold base plate (41) is correspondingly provided with a positioning pin (415) capable of cooperating with the positioning groove (421) to position the mold head (42) and prevent it from rotating.

8. The transfer device according to claim 1, characterized in that: The transfer line (3) further comprises a first detection switch (323) for detecting whether the transfer unit (313), the transfer mold guide rail (311) and the transfer drive guide rail (312) are located at the first position, and a second detection switch (324) for detecting whether the transfer unit (313), the transfer mold guide rail (311) and the transfer drive guide rail (312) are located at the second position.

9. A circulating conveyor line, characterized in that: It comprises the transfer device according to any one of claims 1 to 8, wherein the number of the transfer line bodies (3) is two, which are respectively arranged at the two ends of the first assembly line (1) and the second assembly line (2).

10. The circulating conveyor line according to claim 9, characterized in that: A product conveyor line (6) is also provided on the outer side of the circulating conveyor line. The product conveyor line (6) clamps unprocessed products (61) from the product conveyor line (6) to the final station of the circulating conveyor line for processing through a clamping assembly (62), and clamps processed products (61) from the circulating conveyor line to the product conveyor line (6) again through the clamping assembly (62).

Images