A chain-type shift fork guide mechanism and a disc stacking machine

Abstract

A chain-type shift fork guide mechanism and a disc destacking machine belong to the technical field of disc destacking machines. The present invention includes at least two groups of guide assemblies that synchronously drive a shift fork to move; the guide assembly includes a guide sprocket, a guide chain and a guide connector, the guide chain includes a first translation segment, a second translation segment arranged above the first translation segment, a first lifting segment connecting the first translation segment and the second translation segment on the same side, a second lifting segment connecting the other end of the first translation segment, and a third lifting segment connecting the second translation segment and the second lifting segment, the length of the first translation segment is greater than the length of the second translation segment, and the length of the second lifting segment is greater than the length of the first lifting segment; a plurality of guide sprockets are respectively matched with the connection between adjacent segments of the guide chain, one end of the guide connector is fixedly connected to the guide chain, and the other end is rotatably connected to the shift fork. The present invention can use a set of power devices to realize the disc destacking action, ensuring the stability and efficiency of the equipment.

Description

Technical Field

[0001] The invention relates to the technical field of disc destacking machines, and in particular to a chain-type shift fork guide mechanism and a disc destacking machine. Background Art

[0002] In factories, logistics, warehousing and other fields, trays are used as carriers of goods or products. In the traditional mode, when idle, trays are usually stacked one by one or layer by layer by manual stacking. On the contrary, when entering the assembly line for production activities, the stacked trays need to be manually disassembled and put into the assembly line. This traditional method not only has high labor intensity for workers, but also seriously affects production efficiency.

[0003] In the prior art, in order to solve the problem of manual stacking, pallet unpacking machines and pallet stacking machines emerged, but they still had a single mechanical function. Later, a pallet unpacking and stacking machine that unified the two appeared. For example, the Chinese utility model patent with patent number ZL202021604482.9 discloses an automatic pallet unpacking and stacking machine, including a lifting motor and a power frame. A lifting motor is fixed on the top of the power frame. The power output end of the lifting motor is sequentially coupled with a transmission shaft through a motor chain and a motor sprocket, and both ends of the transmission shaft are coupled with a pallet lifting mechanism. The working principle of the pallet destacking machine is similar to the above: taking the pallet stacking process as an example, first, the lifting mechanism lifts the first pallet to the highest point, then the fork extends to the bottom or side slot of the pallet, then the lifting mechanism descends to the lowest point, and as the lifting mechanism descends, the pallet drops slightly until it is lifted by the fork; then, the lifting mechanism lifts the second pallet to support the first pallet, and slightly lifts the two pallets so that the fork can retract smoothly, then the lifting mechanism continues to lift the two pallets to the highest point, and then the fork extends again to insert into the bottom or side slot of the second pallet; and so on, the pallet stacking work is completed.

[0004] That is, the lifting (lifting) mechanism and the fork mechanism of the existing destacking machine need to use two independent power devices, that is, the coordination of the two actions needs to be controlled by a program. Once the program goes wrong, the equipment will not work properly, and even cause damage to the equipment, and the stability is poor. At the same time, when the two mechanisms are working normally, they need to perform multiple actions in sequence, and the working efficiency is low. Summary of the invention

[0005] The purpose of the present invention is to solve the problems existing in the above-mentioned prior art and to provide a chain-type fork guide mechanism and a stacking machine, which can use a set of power devices to realize the stacking action and ensure the stability and efficiency of the equipment.

[0006] The objective of the present invention is achieved through the following technical solutions:

[0007] 14. The swiftly and minutely adjusting device for a wood-planer working table as claimed in claim 13, wherein said linking rod and said adjusting base are pivotally connected to each other with a bolt, and said bolt has a round shank to contact with said linking rod. said linking rod has a first end which is connected to said linking rod and said adjusting base is pivotally connected to said linking rod. said linking rod has a first end which is connected to said linking rod and said adjusting base is pivotally connected to said linking rod.

[0008] Working principle of the present invention: As we know, to lift the pallet, the forks on opposite sides need to perform symmetrical actions at the same time. To simplify the description, the following description will be made by taking the action of the forks on one side as an example.

[0009] At the beginning of pallet stacking, the fork is in the first translation section near the first lifting section. First, the fork moves along the first translation section to the second lifting section, and during this process, the fork is inserted into the slot on the side of the first pallet; then, the fork rises along the second lifting section and lifts the first pallet to the highest point; at this time, the second pallet is transported from the bottom of the first pallet through a chain conveyor or other means; then, the fork descends along the third lifting section and lowers the first pallet onto the second pallet; then, the fork moves along the second translation section to the first lifting section to exit the slot on the side of the first pallet; finally, the fork descends along the first lifting section to the lowest point. Then, the fork repeats the above action, inserting the second pallet at the bottom during the second action, lifting two pallets, and finally lowering the two pallets to the third pallet that is transported. And so on, the entire pallet stacking work is completed.

[0010] When removing pallets, the guide chain rotates in the opposite direction, the fork is at the highest point, and supports several stacked pallets; first, the fork descends to the lowest point along the second lifting section, and the pallet on the fork descends to the conveying platform such as the chain machine; then the fork moves along the first translation section to the first lifting section to withdraw from the slot of the pallet; then the fork rises along the first lifting section to the second translation section, and then moves along the second translation section to the third lifting section. During this translation process, the fork is inserted into the slot of the second pallet at the lower end; then the fork rises to the highest point along the third lifting section to lift the second pallet at the lower end and all the pallets on it, so that the first pallet at the lower end is alone on the conveying platform, and the conveying platform can transport it away, that is, the removal of the first pallet is completed. And so on, the entire removal of pallets is completed.

[0011] It should also be noted that since the rotational connection axis of the guide connector and the shift fork is located inside the guide chain, the distance between the rotational connection axis of the guide connector and the shift fork and the guide chain is equal to the distance between the rotational axis of the guide sprocket and the guide chain. This ensures that the guide connector will not rotate with the shift fork when passing a corner, wherein the guide connector will independently rotate 90° when passing the connection between the second translation section and the first lifting section, the connection between the first lifting section and the first translation section, and the connection between the first translation section and the second lifting section, and will independently rotate 180° when passing the connection between the second lifting section and the third lifting section. During the independent rotation of the guide connector, the shift fork can remain in its original position, that is, the shift fork only performs translation or lifting movements when passing through the above-mentioned multiple connections, thereby ensuring the stability of the shift fork movement; especially the connection between the second lifting section and the third lifting section, which is the highest point. The shift fork must support the pallet at this point. If the shift fork translates (in the direction of insertion and removal), the friction between the two will inevitably cause safety hazards such as displacement of the pallet. Of course, inevitably, at the connection between the second translation section and the third lifting section, because the corner here is inward, that is, the guide sprocket here is on the outside of the guide chain, and the guide connector is on the inside of the guide chain, the guide connector cannot rotate here, that is, the fork needs to make a small arc movement with the guide connector. However, this is the end of the process of the fork inserting into the pallet slot, or the beginning of the fork exiting the pallet slot, so we can design the size so that the fork will not contact the upper and lower side walls of the pallet slot during this arc movement (the height of the slot must be much greater than the thickness of the fork). Therefore, we only need to design the corresponding size for this place, and there is no need to make special treatments for the other four places.

[0012] As a preferred embodiment of the present invention, two adjacent pins on the guide chain are extended pins, and the guide connector is provided with two pin holes and is fixed to the two extended pins through a chain plate. The connection method has a simple structure and is more convenient for assembly and disassembly.

[0013] As a preferred embodiment of the present invention, the guide connecting member includes a chain connecting block and a fork connecting plate connected adjacently, the thickness of the chain connecting block is greater than the thickness of the fork connecting plate, and the fork connecting plate and the chain connecting block are flush with the side facing away from the guide chain, so that there is a sufficient distance between the fork connecting plate and the guide chain to avoid interference.

[0014] As a preferred embodiment of the present invention, the guide assembly has two groups distributed up and down, at least one guide sprocket in each group of guide assemblies is a double-row sprocket, and the two groups of guide assemblies are connected by a chain at the double-row sprockets to ensure that the two groups of guide assemblies move synchronously and in the same direction.

[0015] The present invention also provides a disc destacking machine, comprising a supporting frame, a driving mechanism, the chain-type fork guiding mechanism as described above, and a fork; the chain-type fork guiding mechanism is symmetrically arranged on two opposite sides of the supporting frame, the driving mechanism synchronously drives the chain-type fork guiding mechanism on the opposite side to move in reverse, and the fork is connected to at least two of the guide connecting members in the same group of chain-type fork guiding mechanisms.

[0016] As a preferred embodiment of the present invention, the driving mechanism includes a driving motor, a first transmission shaft connected to the output end of the driving motor through a sprocket chain assembly, a second transmission shaft connected to the first transmission shaft through gear meshing, and a transmission chain connected to each transmission shaft through a sprocket; each transmission chain is connected to one of the guide sprockets. The driving mechanism uses a gear meshing transmission mode to make the two transmission shafts rotate in opposite directions, thereby driving the chain-type fork guide mechanism on the opposite side to perform reverse action, that is, symmetrical action.

[0017] As a preferred embodiment of the present invention, two groups of the chain-type fork guide mechanisms are relatively provided on the same side of the support frame, a synchronization shaft is fixedly connected between the two relatively arranged guide connecting members, and the fork is rotatably connected to the synchronization shaft to ensure the synchronization of the actions of the two groups of chain-type fork guide mechanisms on the same side and improve the overall structural strength of the fork.

[0018] As a preferred embodiment of the present invention, a limit groove is provided on the synchronous shaft, a sliding sleeve is provided in the limit groove, and the shift fork is provided on the sliding sleeve. On the one hand, the stability of the shift fork position is ensured, that is, the accuracy of the matching between the shift fork and the tray slot is ensured; on the other hand, the friction between the shift fork and the synchronous shaft is reduced, and the smoothness of the shift fork action is improved.

[0019] As a preferred embodiment of the present invention, a lifting bearing is provided at the upper end of the shift fork, and a shaping mechanism is provided above the lifting bearing, and the shaping mechanism includes a mounting plate, a linkage frame, and a push rod; the two ends of the linkage frame are rotatably connected to the mounting plate and the push rod respectively, and the mounting plate and the linkage frame have at least two groups. The shaping mechanism does not require a separate driving device, and when the lifting bearing moves upward, the linkage frame is lifted, and the vertical distance between the push rod and the rotating axis of the linkage frame is changed through the rotation of the linkage frame, so that the push rod is pushed toward one side of the pallet to shape the entire stack of pallets.

[0020] As a preferred embodiment of the present invention, a limit shaft is provided on the mounting plate, and an arc-shaped limit groove cooperating with the limit shaft is provided on the linkage frame to limit the rotation range of the linkage frame, thereby ensuring the stability of the push rod movement range and avoiding interference with other components.

[0021] The advantages of the present invention are:

[0022] 1. A set of power devices can be used to realize the disassembly and stacking action to ensure the stability and efficiency of the equipment;

[0023] 2. The chain-type shift fork guide mechanism is cleverly designed to automatically guide the shift fork to complete the stacking or disassembly of the discs;

[0024] 3. You only need to change the rotation direction of the drive motor to switch between the plate removal and plate stacking functions, which is more convenient to use;

[0025] 4. The shaping mechanism does not require a separate driving device, and relies on the driving effect of the shift fork to achieve the shaping of the pallet. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a structural schematic diagram of a chain-type shift fork guide mechanism of the present invention;

[0027] Figure 2 It is a structural schematic diagram of the guide connecting member in the present invention;

[0028] Figure 3 It is a structural schematic diagram of a disc destacking machine of the present invention;

[0029] Figure 4 It is a schematic diagram of the transmission connection structure of the driving mechanism and the shift fork in the present invention;

[0030] Figure 5 It is a structural schematic diagram of the initial state of the shaping mechanism in the present invention;

[0031] Figure 6 It is a structural schematic diagram of the shaping mechanism in the pushing-out state in the present invention. DETAILED DESCRIPTION

[0032] The present invention will be further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0033] like Figure 1-2 As shown, a chain-type shift fork guide mechanism includes two groups of guide components distributed in an upper and lower manner; each group of guide components includes a plurality of guide sprockets 1, a guide chain and a guide connector 3, wherein the guide chain includes a first translation segment 21, a second translation segment 22 arranged parallel to the first translation segment 21, a first lifting segment 23 vertically connected to the same side ends of the first translation segment 21 and the second translation segment 22, a second lifting segment 24 vertically connected to the other end of the first translation segment 21, and a third lifting segment 25 vertically connected to the second translation segment 22 and the second lifting segment 24. The length of the first translation section 21 is greater than the length of the second translation section 22, and the length of the second lifting section 24 is greater than the length of the first lifting section 23; the plurality of guide sprockets 1 are respectively matched with the connection of adjacent sections of the guide chain, one end of the guide connector 3 is fixedly connected to the guide chain, and the other end is rotatably connected to the shift fork; the rotation connection axis of the guide connector 3 and the shift fork is located inside the guide chain, and the distance between the rotation connection axis of the guide connector 3 and the shift fork and the guide chain is equal to the distance between the rotation axis of the guide sprocket 1 and the guide chain. At least one guide sprocket in each set of guide assemblies is a double-row sprocket, and the two sets of guide assemblies are connected by a chain at the double-row sprocket to ensure that the two sets of guide assemblies move synchronously and in the same direction, thereby jointly driving a shift fork to move.

[0034] Among them, two adjacent pins on the guide chain are extended pins 301, and the guide connector 3 is provided with two pin holes 302, and is fixed to the two extended pins 301 through a chain plate 303. The connection method has a simple structure and is more convenient for disassembly and assembly. In addition, the guide connector 3 includes a chain connecting block 31 and a fork connecting plate 32 that are adjacently connected. The thickness of the chain connecting block 31 is greater than the thickness of the fork connecting plate 32. The fork connecting plate 31 and the side of the chain connecting block 32 facing away from the guide chain are flush, so that there is a sufficient distance between the fork connecting plate and the guide chain to avoid interference.

[0035] The working principle of the chain-type fork guide mechanism: We know that to lift the pallet, the forks on the opposite sides need to perform symmetrical actions at the same time. In order to simplify the description, the following explanation is based on the action of the fork on one side as an example.

[0036] At the beginning of stacking, the fork is at the first translation section 21 near the first lifting section 23. First, the fork moves along the first translation section 21 to the second lifting section 24, and during this process, the fork is inserted into the slot on the side of the first pallet; then, the fork rises along the second lifting section 24 and lifts the first pallet to the highest point; at this time, the second pallet is transported from the bottom of the first pallet by a chain conveyor or the like; then, the fork descends along the third lifting section 25 and lowers the first pallet onto the second pallet; then, the fork moves along the second translation section 22 to the first lifting section 23 to exit the slot on the side of the first pallet; finally, the fork descends along the first lifting section 23 to the lowest point. Then, the fork repeats the above actions, and the second action inserts the second pallet at the bottom, lifts two pallets, and finally lowers the two pallets to the third pallet that is transported. And so on, the entire stacking work is completed.

[0037] When removing the pallets, the guide chain rotates in the opposite direction, the fork is at the highest point, and supports several stacked pallets; first, the fork descends to the lowest point along the second lifting section 24, and the pallet on the fork descends to the conveying platform such as the chain machine; then the fork moves along the first translation section 21 to the first lifting section 23 to withdraw from the slot of the pallet; then the fork rises along the first lifting section 23 to the second translation section 22, and then moves along the second translation section 22 to the third lifting section 25. During the translation process, the fork is inserted into the slot of the second pallet at the lower end; then the fork rises to the highest point along the third lifting section 25 to lift the second pallet at the lower end and all the pallets on it together, so that the first pallet at the lower end is alone on the conveying platform, and the conveying platform can transport it away, that is, the removal of the first pallet is completed. And so on, the entire removal of the pallets is completed.

[0038] It should also be noted that since the rotational connection axis of the guide connector 3 and the shift fork is located inside the guide chain, the distance between the rotational connection axis of the guide connector 3 and the shift fork and the guide chain is equal to the distance between the rotational axis of the guide sprocket 1 and the guide chain. This ensures that the guide connector 3 will not rotate with the shift fork when passing a corner, wherein the guide connector 3 will independently rotate 90° when passing the connection between the second translation section 22 and the first lifting section 23, the connection between the first lifting section 23 and the first translation section 21, and the connection between the first translation section 21 and the second lifting section 24, and will independently rotate 180° when passing the connection between the second lifting section 24 and the third lifting section 25; during the above-mentioned independent rotation of the guide connector 3, the shift fork can remain in its original position, that is, the shift fork only performs translation or lifting movements when passing through the above-mentioned multiple connections, thereby ensuring the stability of the shift fork movement; especially the connection between the second lifting section 24 and the third lifting section 25, which is the highest point, and the shift fork must support the pallet at this point. If the shift fork is translated (in the plug-in and unplugging direction), it will inevitably cause safety hazards such as displacement of the pallet due to the friction between the two. Of course, inevitably, at the connection between the second translation section 22 and the third lifting section 25, since the corner here is inward, that is, the guide sprocket here is on the outside of the guide chain, and the guide connector 3 is on the inside of the guide chain, the guide connector 3 cannot rotate here, that is, the fork needs to make a small arc motion with the guide connector 3. However, this is the end of the process of the fork inserting into the pallet slot, or the beginning of the fork exiting the pallet slot, so we can design the size so that the fork will not contact the upper and lower side walls of the pallet slot during this arc motion (the height of the slot must be much greater than the thickness of the fork). Therefore, we only need to design the corresponding size for this place, and there is no need to make special treatments for the other four places.

[0039] like Figure 3-6As shown, the present invention also provides a disc stacking and unstacking machine, comprising a support frame, a driving mechanism, the chain-type fork guide mechanism as described above, and a fork 4. The support frame is mainly composed of four columns 51 and a crossbeam 52 arranged between the columns 51. The driving mechanism is arranged at the lower part of the support frame, and comprises a driving motor 61, a first transmission shaft 62 connected to the output end of the driving motor 61 through a sprocket chain assembly, a second transmission shaft 63 connected to the first transmission shaft 62 through gear meshing transmission, and a transmission chain 64 connected to each transmission shaft through a sprocket. The two transmission shafts rotate synchronously in opposite directions due to the relationship of gear meshing transmission. In addition, a transmission chain 64 is provided at both ends of each transmission shaft, and the above-mentioned chain-type fork guide mechanism is provided on each column 51. Correspondingly, each set of chain-type fork guide mechanisms is equipped with a fork 4, so that each transmission chain 64 drives a set of chain-type fork guide mechanisms and a fork 4 to move respectively; wherein, the two sets of chain-type fork guide mechanisms on the same side are driven by the same transmission shaft to perform synchronous and unidirectional movements, and the chain-type fork guide mechanisms on the opposite side perform synchronous reverse movements, so as to realize the movement of the forks on both sides moving towards each other to insert the pallet or moving away from each other to withdraw the pallet.

[0040] Specifically, in the chain-type fork guide mechanism, in addition to the guide sprockets for transmitting the upper and lower guide assemblies being double-row sprockets, the remaining guide sprockets 1 also need to use a double-row sprocket for transmission connection with the transmission chain 64. In addition, in order to make the transmission chain 64 avoid the space for setting the chain conveyor and other conveying equipment at the lower part of the support frame, a redirecting sprocket 65 cooperating with the transmission chain 64 is provided at the lower part of the column 51.

[0041] In order to ensure the synchronization, stability and structural strength of the two forks on the same side, a synchronous shaft 7 is fixedly connected between the guide connectors in the two sets of chain-type fork guide mechanisms on the same side of the support frame, and the fork 4 is rotatably connected to the synchronous shaft 7, that is, one fork 4 is rotatably connected to two synchronous shafts 7 at the same time. In addition, both ends of the synchronous shaft 7 are provided with a limit groove, and a sliding sleeve 71 is provided in the limit groove, and the fork 4 is arranged on the sliding sleeve 71. This structure ensures the stability of the fork position, that is, ensures the accuracy of the fork and the tray slot; on the other hand, it reduces the friction between the fork and the synchronous shaft, and improves the smoothness of the fork action.

[0042] In addition, shaping mechanisms are provided on the opposite sides of the two uprights 51 on the same side. Figure 5As shown, it includes two upper and lower mounting plates 81, a linkage frame 82 with one end rotatably connected to the mounting plate 81, and a push rod 83 rotatably connected to the other ends of the upper and lower linkage frames 82. The lower mounting plate is located above the guide chain. The upper end of the shift fork is provided with a jacking bearing 84 through a slot and a rotating shaft. When the shift fork rises to the highest point, the jacking bearing 84 lifts the linkage frame 82 to a horizontal state, thereby pushing the push rod 83 into the support frame for a certain distance, as shown in FIG. Figure 6 As shown, a certain amount of squeezing is performed on the side of the pallet 10, and four push rods 83 on both sides of the pallet are simultaneously squeezed toward the middle to achieve the shaping of the entire stack of pallets. In addition, the shaping mechanism does not require a separate driving device, and the shaping action can be achieved only by the drive of the shift fork, which is lower in cost. In order to limit the swing range of the linkage frame 82 and avoid interference with other components, a limiting shaft 85 is provided on the mounting plate 81, and an arc-shaped limiting groove 86 that cooperates with the limiting shaft 85 is provided on the linkage frame 82.

[0043] Finally, the use of the unstacking machine generally requires the use of a conveying device such as a chain machine 9. The chain machine passes through the support frame, and its conveying platform is located above the driving mechanism to convey the pallets 10 in sequence when stacking the pallets, and to convey the pallets away in sequence when unstacking the pallets. The chain machine is a conventional device, and its specific structure is not described in detail here.

[0044] The working principle of the present tray stacking machine is as follows: when stacking trays, the chain conveyor 9 conveys the first tray 10 into the tray stacking machine, the driving mechanism is activated, and the chain-type fork guide mechanism and the fork are driven by the transmission chain to operate, and the fork repeats the tray stacking action. The specific tray stacking principle is the same as the working principle of the above-mentioned chain-type fork guide mechanism, which will not be described in detail here. In addition, during each rise of the fork, the linkage frame will be lifted up, so that the push rod squeezes the two sides of the tray 10 to achieve automatic shaping. When removing trays, the rotation direction of the driving motor is changed. The tray removal process is also the same as the working principle of the above-mentioned track-type fork guide mechanism, which will not be described in detail here.

[0045] The above is only a preferred specific embodiment of the present invention, which is an implementation method based on the overall concept of the present invention, and the protection scope of the present invention is not limited thereto. Any changes or substitutions that can be easily thought of by a person skilled in the art within the technical scope disclosed by the present invention should be included in the protection scope of the present invention. Therefore, the protection scope of the present invention should be based on the protection scope of the claims.

Claims

1. A disc destacking machine, characterized in that: It comprises a support frame, a driving mechanism, a chain-type shift fork guide mechanism, and a shift fork; the support frame is composed of four columns and a crossbeam arranged between the columns, each column is provided with a chain-type shift fork guide mechanism, the driving mechanism synchronously drives the chain-type shift fork guide mechanism on the opposite side to move in the opposite direction, and the shift fork is connected to at least two guide connectors in the same group of chain-type shift fork guide mechanisms; The chain-type shift fork guide mechanism comprises at least two groups of guide components for synchronously driving a shift fork to move; the guide component comprises a plurality of guide sprockets, a guide chain and a guide connecting member, the guide chain comprises a first translation section, a second translation section arranged above the first translation section, a first lifting section connecting the first translation section and the second translation section on the same side, a second lifting section connecting the other end of the first translation section, and a third lifting section connecting the second translation section and the second lifting section, the length of the first translation section is greater than the length of the second translation section, and the length of the second lifting section is greater than the length of the first lifting section; the plurality of guide sprockets are respectively matched with the connection between adjacent sections of the guide chain, one end of the guide connecting member is fixedly connected to the guide chain, and the other end is rotatably connected to the shift fork; the rotation connection axis of the guide connecting member and the shift fork is located on the inner side of the guide chain, and the distance between the rotation connection axis of the guide connecting member and the shift fork and the guide chain is equal to the distance between the rotation axis of the guide sprocket and the guide chain; The driving mechanism includes a driving motor, a first transmission shaft connected to the output end of the driving motor through a sprocket chain assembly, a second transmission shaft connected to the first transmission shaft through gear meshing, and a transmission chain connected to each transmission shaft through a sprocket; each of the transmission chains is connected to one of the guide sprockets.

2. The disc destacking machine according to claim 1, characterized in that: Two adjacent pins on the guide chain are extended pins, and the guide connecting piece is provided with two pin holes and is fixed to the two extended pins through a chain plate.

3. The disc destacking machine according to claim 1, characterized in that: The guide connecting member comprises a chain connecting block and a fork connecting plate which are adjacently connected, the thickness of the chain connecting block is greater than the thickness of the fork connecting plate, and the fork connecting plate is flush with the side of the chain connecting block which is away from the guide chain.

4. The disc destacking machine according to claim 1, characterized in that: The guide assembly comprises two groups distributed up and down, at least one guide sprocket in each group of guide assemblies is a double-row sprocket, and the two groups of guide assemblies are connected by a chain at the double-row sprocket.

5. The disc destacking machine according to claim 1, characterized in that: Two groups of the chain-type shift fork guide mechanisms are arranged opposite to each other on the same side of the support frame, a synchronization shaft is fixedly connected between the two oppositely arranged guide connectors, and the shift fork is rotatably connected to the synchronization shaft.

6. The disc destacking machine according to claim 5, characterized in that: The synchronous shaft is provided with a limiting groove, a sliding sleeve is provided in the limiting groove, and the shift fork is provided on the sliding sleeve.

7. The disc destacking machine according to claim 1, characterized in that: A lifting bearing is provided at the upper end of the shift fork, and a shaping mechanism is provided above the lifting bearing. The shaping mechanism includes a mounting plate, a linkage frame, and a push rod; the two ends of the linkage frame are rotatably connected to the mounting plate and the push rod respectively, and the mounting plate and the linkage frame have at least two groups.

8. The disc destacking machine according to claim 7, characterized in that: The mounting plate is provided with a limiting shaft, and the linkage frame is provided with an arc-shaped limiting groove matching the limiting shaft.

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