Tray distribution machine

Abstract

The invention belongs to the technical field of automatic production conveying equipment, and discloses a tray distributing machine which comprises a frame structure, a discharging supporting assembly and a driving device, a containing cavity for containing trays is formed in the frame structure, a tray conveying device is arranged at the bottom end of the containing cavity, and the discharging supporting assembly comprises a first screw rod piece. The two first screw rod pieces are rotationally arranged in the frame structure and located on the two opposite sides of the frame structure, the axial direction of the first screw rod pieces is arranged in the vertical direction, spiral blades of the first screw rod pieces are locally located in the containing cavity, and the driving device is connected with the two first screw rod pieces and used for driving the two first screw rod pieces to rotate synchronously; and the trays can be supported on the spiral blades of the first spiral rod piece or fall onto the tray conveying device through the distribution outlet. According to the tray distribution machine, descending and distribution of the trays can be achieved through the first screw rod piece, the comprehensive cost is low, and due to the fact that transmission parts are greatly reduced, the failure rate is low, maintenance is easy, and market competitiveness is high.

Description

Technical Field

[0001] The present invention relates to the technical field of automated production conveying equipment, and in particular to a pallet dispensing machine. Background Art

[0002] At present, the pallet dispenser on the automated production line is mainly composed of two parts: a lifting assembly and a clamping assembly.

[0003] Among them, the devices that provide power for the above-mentioned lifting components and clamping components are mainly drive motors and cylinders. The lifting component uses a motor, and the output end of the motor drives the rotating shaft to rotate, and the rotating shaft drives the belt to release or reel. When the belt is released, the lifting frame connected to the belt moves upward; when the belt is reeled, the lifting frame connected to the belt moves downward. The lifting adjustment accuracy is poor, and the motor needs to be matched with a high-power motor, which consumes a lot of energy. The cylinder is used as a clamping component, the energy conversion rate is low, and the layout of the air source pipeline needs to be considered during assembly, which is very inconvenient to install.

[0004] Therefore, it is urgent to design a new tray dispenser with simple structure, low energy consumption, stable performance and greater market competitiveness. Summary of the invention

[0005] The purpose of the present invention is to provide a pallet dispenser to solve the technical problems of the pallet dispenser having a complex power device structure, high energy consumption, unstable performance, high cost and poor market competitiveness.

[0006] To achieve this object, the present invention adopts the following technical solutions:

[0007] Pallet dispensing machine, comprising:

[0008] A frame structure, wherein the frame structure has a receiving cavity for receiving a pallet, the top of the receiving cavity is a pallet placement entrance, the bottom of the receiving cavity is a pallet distribution outlet, and the bottom of the receiving cavity is provided with a pallet conveying device;

[0009] A material discharge support assembly, the material discharge support assembly comprises a first spiral rod, at least two of the first spiral rods are provided, the two first spiral rods are rotatably arranged in the frame structure and are located at opposite sides of the frame structure, the axial direction of the first spiral rod is arranged along the vertical direction, and the spiral blade of the first spiral rod is partially located in the accommodating cavity;

[0010] A driving device is connected to the two first spiral rods and is used to drive the two first spiral rods to rotate synchronously, so that the tray can be supported on the spiral blades of the first spiral rods or fall onto the tray conveying device through the distribution outlet.

[0011] As a preferred solution of the tray dispensing machine, a first outer gear ring is provided on the circumference of the first spiral rod, and the driving device comprises:

[0012] A sprocket, at least one sprocket is provided, the sprocket is rotatably arranged in the frame structure, and the axial direction of the sprocket is arranged along the vertical direction;

[0013] A first chain, the first chain being connected to the sprocket and the first outer tooth rings of the two first spiral rods;

[0014] A power device is arranged in the frame structure and an output end of the power device is connected to the sprocket.

[0015] As a preferred solution of the tray dispensing machine, the frame structure is arranged in a rectangular frame, and one side of the frame structure is a loading end;

[0016] The sprocket comprises:

[0017] A driving sprocket, the output end of the power device is connected to the driving sprocket;

[0018] A first guide sprocket, wherein the first guide sprocket and the driving sprocket are respectively arranged at two corners of the frame structure away from the feeding end;

[0019] A second guide sprocket is arranged away from the feeding end, and a peripheral side of the second guide sprocket is linked to the outer side of the first chain to pull the first chain away from the feeding end and link to the first outer tooth ring.

[0020] As a preferred solution for the pallet dispenser, the material discharge support assembly also includes a second spiral rod, at least two of which are provided, and the two second spiral rods are rotatably arranged in the frame structure. The second spiral rod has the same shape and size as the first spiral rod and rotates synchronously with the first spiral rod.

[0021] As a preferred solution of the tray dispenser, a second outer tooth ring is provided on the circumference of the second spiral rod, and a third outer tooth ring is also provided on the circumference of the first spiral rod, the third outer tooth ring and the first outer tooth ring are spaced apart from each other along the axial direction of the first spiral rod, and the second outer tooth ring and the third outer tooth ring are in the same horizontal plane, and the driving device further comprises:

[0022] The second chain is provided with two second chains, wherein one second chain is respectively connected with the second outer tooth ring of one second spiral rod and the third outer tooth ring of one first spiral rod.

[0023] As a preferred solution for the pallet dispenser, the pitch of the spiral blade of the first spiral rod and the spiral blade of the second spiral rod matches the thickness of the pallet and the number of lines is at least one, so that both ends of the spiral blade can support at least two stacked pallets respectively.

[0024] As a preferred solution of the tray dispenser, the power device includes a driving motor, the output end of the driving motor is provided with a reduction device, and the output end of the reduction device is connected to the driving sprocket.

[0025] As a preferred solution of the pallet dispenser, the pallet dispenser further includes a chain tensioning assembly, and a plurality of the chain tensioning assemblies are provided. The plurality of chain tensioning assemblies are arranged on the frame structure and are used to tension the first chain and the second chain.

[0026] As a preferred solution of the pallet dispenser, the chain tensioning assembly comprises:

[0027] A fixing plate, the fixing plate being detachably mounted on the frame structure;

[0028] A tensioning sprocket is rotatably mounted on the fixing plate with its rotation axis arranged in a vertical direction, and a peripheral side of the tensioning sprocket is linked to the inner side or the outer side of the first chain or the second chain.

[0029] As a preferred solution of the tray dispenser, a surrounding frame is arranged above the frame structure, and the surrounding frame is arranged around three sides of the frame structure and is located at the other side of the loading end in an open manner.

[0030] Beneficial effects of the present invention:

[0031] The stacked trays are placed in the frame structure through the tray placement entrance at the top of the accommodating cavity, and are placed on the spiral blade of the first spiral rod. The driving device is started to drive the first spiral rod to rotate. With the rotation of the spiral blade, the tray at the bottom is gradually transferred from the top support of the spiral blade to the bottom support of the spiral blade. At the same time, the top of the spiral blade will support all the trays above the bottom tray. The spiral blade continues to rotate until the bottom tray is separated from the spiral blade and falls on the conveyor belt of the tray conveying device through the tray distribution outlet. The rotation of the first spiral rod stops, and after waiting for the tray on the conveyor belt to be transmitted out, the driving device is started again and the above action is repeated, so that the stacked trays can be distributed one by one from bottom to top in sequence. The tray distributor provided by the present invention is ingenious and simple in structure design. Only the first spiral rod can be used to realize the descent and distribution of the tray, and the comprehensive cost is low. The rotation of the first spiral rod can be controlled by the driving device. Since the motor of the traditional lifting component and the cylinder of the clamping component are not required, the power energy consumption is greatly reduced, and it is more energy-saving. Due to the greatly reduced transmission components, the failure rate is lower, the maintenance is simpler, and the market competitiveness is stronger. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] Figure 1 is a structural schematic diagram of a tray dispenser provided in an embodiment of the present invention;

[0033] Figure 2 It is a schematic structural diagram of the frame structure provided by an embodiment of the present invention without the organic glass cover;

[0034] Figure 3 is a structural schematic diagram of a framework structure provided by an embodiment of the present invention;

[0035] Figure 4 is a schematic structural diagram of a driving device, a first spiral rod and a second spiral rod provided in an embodiment of the present invention;

[0036] Figure 5 is a schematic structural diagram of a first spiral rod member provided in an embodiment of the present invention;

[0037] Figure 6 is a schematic structural diagram of a second spiral rod member provided in an embodiment of the present invention;

[0038] Figure 7 It is a structural schematic diagram of the tray dispenser provided by an embodiment of the present invention without the organic glass cover;

[0039] Figure 8 is a structural schematic diagram of a tray dispenser provided by an embodiment of the present invention in a separated state 1;

[0040] Fig. 9 is a structural schematic diagram of a tray dispenser provided by an embodiment of the present invention in a second separation state;

[0041] Fig.10 It is a structural schematic diagram of a tray dispenser provided in an embodiment of the present invention separating a tray.

[0042] In the figure:

[0043] 1. Frame structure; 11. Accommodating cavity; 12. Support legs; 13. Organic glass cover; 14. Surrounding frame;

[0044] 2. Pallet conveyor;

[0045] 3. first spiral rod; 31. first outer gear ring; 32. third outer gear ring;

[0046] 4. a second spiral rod; 41. a second outer gear ring;

[0047] 5. Driving device; 511. Driving sprocket; 512. First guide sprocket; 513. Second guide sprocket; 52. First chain; 53. Second chain; 54. Driving motor; 55. Speed ​​reducer;

[0048] 6. Chain tensioning assembly; 61. Fixed plate; 62. Tensioning sprocket. DETAILED DESCRIPTION

[0049] The present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It is to be understood that the specific embodiments described herein are only used to explain the present invention, rather than to limit the present invention. It should also be noted that, for ease of description, only parts related to the present invention, rather than all structures, are shown in the accompanying drawings.

[0050] In the description of the present invention, unless otherwise clearly specified and limited, the terms "connected", "connected", and "fixed" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0051] In the present invention, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes that the first feature is directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0052] In the description of this embodiment, the terms "upper", "lower", "right", etc., directions or positional relationships are based on the directions or positional relationships shown in the drawings, and are only for the convenience of description and simplification of operation, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as limiting the present invention. In addition, the terms "first" and "second" are only used to distinguish in the description and have no special meaning.

[0053] At present, the pallet dispenser on the automated production line is mainly composed of two parts: the lifting component and the clamping component. Among them, the devices that provide power for the lifting component and the clamping component are mainly drive motors and cylinders. The lifting component uses a motor, and the output end of the motor drives the rotating shaft to rotate, and the rotating shaft drives the belt to release or reel. When the belt is released, the lifting frame connected to the belt moves upward; when the belt is reeled, the lifting frame connected to the belt moves downward. The lifting adjustment accuracy is poor, and the motor needs to be matched with a high-power motor, which consumes a lot of energy. The cylinder is used as a clamping component, the energy conversion rate is low, and the layout of the air source pipeline needs to be considered during assembly, which is very inconvenient to install.

[0054] In order to solve the above problems, combined Figure 1-Figure 10 As shown, this embodiment provides a pallet dispensing machine, which includes a frame structure 1, a material discharging support assembly and a driving device 5.

[0055] like Figure 1-Figure 3 As shown, the frame structure 1 is arranged in a rectangular frame, and the frame structure 1 has a receiving cavity 11 for accommodating pallets inside. The top of the receiving cavity 11 is a pallet placement entrance, and the bottom of the receiving cavity 11 is a pallet distribution outlet. Support legs 12 are arranged at the four corners of the bottom of the frame structure 1, and a pallet conveying device 2 is arranged at the bottom of the receiving cavity 11. The support legs 12 are used to support the frame structure 1 on the ground so that the frame structure 1 can be located above the pallet conveying device 2.

[0056] In addition, the support legs 12 are detachably mounted on the bottom of the frame structure 1 by bolts. The split design allows support legs 12 of different lengths to be designed according to different needs to accommodate pallet conveying devices 2 of different heights.

[0057] Furthermore, the pallet conveyor 2 transmits along a first direction, and the frame structure 1 is located on two opposite sides of the pallet conveyor 2, one of which is a loading end. The loading end is staggered with the feeding starting end and the feeding end of the pallet conveyor 2, which is convenient for pallet loading and has a reasonable layout.

[0058] Continue to see Figure 2 and Figure 3 A frame 14 is disposed above the frame structure 1. The frame 14 surrounds three sides of the frame structure 1 and is open on the other side of the loading end. The inner side of the frame 14 is flush with the inner side wall of the accommodating cavity 11 in the vertical direction. When stacked pallets are placed in the frame structure 1, the inner side wall of the frame 14 has a limiting effect on the pallets, ensuring that the stacked pallets can be neatly stacked and fall smoothly from the pallet distribution outlet.

[0059] Furthermore, the material discharge support assembly and the driving device 5 are both located in the frame structure 1. In order to prevent dust and impurities from entering the frame structure 1, a plexiglass cover 13 is provided on the outer periphery of the frame structure 1. The transparent plexiglass cover 13 facilitates the operator to observe the transmission conditions inside the frame structure 1.

[0060] like Figure 4 As shown, the material discharge support assembly includes a first spiral rod 3, at least two of which are provided, and two are provided in this embodiment. The two first spiral rods 3 are rotatably provided in the frame structure 1 and are located on opposite sides of the frame structure 1. The axial direction of the first spiral rod 3 is provided along the vertical direction, and the spiral blades of the first spiral rod 3 are partially located in the accommodating cavity 11. The driving device 5 is connected to the two first spiral rods 3, and is used to drive the two first spiral rods 3 to rotate synchronously, so that the pallet can be supported on the spiral blades of the first spiral rod 3 or fall onto the pallet conveying device 2 through the distribution outlet.

[0061] It can be understood that the stacked pallets are placed in the frame structure 1 through the pallet placement entrance at the top of the accommodating chamber 11, and are placed on the spiral blades of the first spiral rod 3. The driving device 5 is started to drive the first spiral rod 3 to rotate. With the rotation of the spiral blades, the pallet located at the bottom is gradually transferred from the top support of the spiral blades to the bottom support of the spiral blades. At the same time, the top of the spiral blades will support all the pallets above the bottom pallet. The spiral blades continue to rotate until the bottom pallet is separated from the spiral blades and falls onto the conveyor belt of the pallet conveying device 2 through the pallet distribution outlet. The rotation of the first spiral rod 3 stops, and after waiting for the pallet on the conveyor belt to be transferred out, the driving device 5 is started again and the above actions are repeated, so that the stacked spiral pallets can be distributed one by one from bottom to top.

[0062] In summary, the tray dispenser provided by the present invention has an ingenious and simple structural design. The tray can be lowered and distributed by only using the first spiral rod 3. The overall cost is low. The rotation of the first spiral rod 3 can be controlled by the driving device 5. Since there is no need for the motor of the traditional lifting assembly and the cylinder of the clamping assembly, the power consumption is greatly reduced and it is more energy-efficient. Due to the significant reduction in transmission components, the failure rate is lower, maintenance is simpler, and the market competitiveness is stronger.

[0063] Specifically, Figure 4 As shown, the driving device 5 includes a sprocket, a first chain 52 and a power device. A first outer tooth ring 31 is provided on the circumferential side of the first spiral rod 3, and at least one sprocket is provided. The sprocket is rotatably arranged in the frame structure 1, and the axial direction of the sprocket is arranged along the vertical direction. The first chain 52 is linked with the sprocket and the first outer tooth rings 31 of the two first spiral rods 3. The power device is arranged in the frame structure 1 and the output end is connected with the sprocket. The sprocket is driven to rotate by the power device, and the sprocket drives the first chain 52 to transmit. The first outer tooth ring 31 linked with the first chain 52 drives the first spiral rod 3 to rotate synchronously. This embodiment adopts chain transmission, which has stable transmission and good reliability, and is convenient for daily use and maintenance.

[0064] More specifically, see Figure 4, the sprocket wheel includes a driving sprocket wheel 511, a first guiding sprocket wheel 512 and a second guiding sprocket wheel 513. The driving sprocket wheel 511 and the first guiding sprocket wheel 512 are respectively arranged at two corners of the frame structure 1 far away from the feeding end. The output end of the power device is connected to the driving sprocket wheel 511. The second guiding sprocket wheel 513 is arranged far away from the feeding end. The outer side of the second guiding sprocket wheel 513 is connected to the outer side of the first chain 52 to pull the first chain 52 away from the feeding end and connect it to the first external tooth ring 31. On the one hand, the second guiding sprocket wheel 513 can make the first chain 52 away from the feeding end, avoid the influence of the arrangement of the first chain 52 on the feeding of the feeding end, and make the first chain 52 arranged in a "U" shape. On the other hand, it increases the connection surface between the first chain 52 and the first external tooth ring 31, making the transmission stability of the first spiral rod 3 better.

[0065] In this embodiment, there is one driving sprocket wheel 511 and one first guiding sprocket wheel 512, and there are two second guiding sprocket wheels 513. In other embodiments, the number of the first guiding sprocket wheel 512 and the second guiding sprocket wheel 513 can be set according to actual needs. This embodiment does not make specific limitations on the number, and it can be three, four or even more.

[0066] In order to increase the supporting points of the tray to improve the stability of the support for the tray. As Figure 4 , Figure 5 and Figure 6 shown, the feeding support assembly further includes a second spiral rod 4. There are at least two second spiral rods 4. In this embodiment, there are two second spiral rods 4. The two second spiral rods 4 are rotatably arranged in the frame structure 1. The second spiral rod 4 has the same shape and size as the first spiral rod 3 and rotates synchronously with the first spiral rod 3.

[0067] Specifically, a second external tooth ring 41 is arranged on the outer side of the second spiral rod 4, and a third external tooth ring 32 is further arranged on the outer side of the first spiral rod 3. The third external tooth ring 32 and the first external tooth ring 31 are arranged at intervals along the axial direction of the first spiral rod 4. The second external tooth ring 41 and the third external tooth ring 32 are in the same horizontal plane. The driving device 5 further includes two second chains 53. One of the second chains 53 is respectively connected to the second external tooth ring 41 of one second spiral rod 4 and the third external tooth ring 32 of one first spiral rod 3. Through the rotation of the first spiral rod 3, the second chain 53 connected to the third external tooth ring 32 is driven to transmit. The second chain 53 drives the second spiral rod 4 of the second external tooth ring 41 connected thereto to rotate synchronously, so as to realize the stable support of the tray through the spiral blades of the two first spiral rods 3 and the two second spiral rods 4.

[0068] In this embodiment, the power device includes a driving motor 54, and a reduction device 55 is provided at the output end of the driving motor 54. The output end of the reduction device 55 is connected to the driving sprocket 511. The driving sprocket 511 is rotated by the driving motor 54. This embodiment adopts a horizontal transmission mode, and only requires a low-power driving motor 54 of 0.37kw to provide power. Compared with the existing power mechanism, the power is greatly reduced, and no hydraulic or pneumatic device is required. It is more energy-saving in use, simple in structure, convenient in operation and control, and simple in maintenance.

[0069] Among them, the reduction device 55 is a component composed of a gear transmission, a turbine transmission, and a gear-worm transmission enclosed in a rigid shell, which plays the role of matching the rotation speed and transmitting the torque. Because its specific structure is the existing technology, it will not be further described here.

[0070] Preferably, the pitch of the spiral blades of the first spiral rod 3 and the spiral blades of the second spiral rod 4 of this embodiment matches the thickness of the pallet and the number of lines is at least one, so that the two ends of the spiral blades can support at least two stacked pallets respectively, thereby achieving the purpose of allocating pallets one by one.

[0071] like Figure 4 As shown, the pallet dispenser also includes a chain tensioning assembly 6, and a plurality of chain tensioning assemblies 6 are provided. In this embodiment, four chain tensioning assemblies are provided. In other embodiments, the number of chain tensioning assemblies 6 can also be one, two, three, five or even more, which is not limited. Four chain tensioning assemblies 6 are provided on the frame structure 1, and are used to tension the first chain 52 and the second chain 53. Specifically, the chain tensioning assembly 6 includes a fixed plate 61 and a tensioning sprocket 62. The fixed plate 61 is detachably mounted on the frame structure 1 by bolts. The tensioning sprocket 62 is rotatably mounted on the fixed plate 61 along the vertical direction. The circumferential side of the tensioning sprocket 62 is linked to the inner side or outer side of the first chain 52 or the second chain 53. The tensioning force on the first chain 52 or the second chain 53 can be adjusted by the setting position of the tensioning sprocket 62, thereby ensuring the effectiveness and reliability of the transmission operation.

[0072] It should be noted that multiple pallet dispensers can be provided and installed side by side to facilitate distributing pallets of different sizes or types on the conveyor belt of the same pallet conveyor 2, and it can be programmed to work with any type of automation system.

[0073] Now combined Figure 7-10 The steps of pallet allocation of the pallet allocation machine are further described:

[0074] First, see Figure 7, stack the pallets to be distributed into a pile, put the stacked pallets from the loading end into the pallet placement entrance of the accommodating chamber 11 manually or by forklift, and place them on the spiral blades of the first spiral rod 3 and the spiral blades of the second spiral rod 4, and adjust the outer sides of all pallets to be in contact with the inner side wall of the fence;

[0075] Then, see Figure 8 , start the driving motor 54, the driving motor 54 drives the driving sprocket 511 to rotate, the first chain 52 connected to the driving sprocket 511 drives to drive the first spiral rod 3 of the first outer toothed ring 31 connected to the first chain 52 to rotate, and the second chain 53 connected to the third outer toothed ring 32 of the first spiral rod 3 drives to drive the second spiral rod 4 of the second outer toothed ring 41 connected to the second chain 53 to rotate synchronously;

[0076] Secondly, see Fig. 9 , along with the rotation of the first spiral rod 3 and the second spiral rod 4, the push plate at the bottom of the stacked trays gradually moves downward, and the support from the top end of the initial spiral blade is gradually transferred to the bottom end of the spiral blade. At the same time, the top end of the spiral blade will be inserted above the bottom tray to support all the trays thereon;

[0077] Finally, see Fig.10 , accompanied by the continuous rotation of the first spiral rod 3 and the second spiral rod 4, until the lowest pallet is separated from the spiral blade and falls onto the conveyor belt of the pallet conveying device 2 through the pallet distribution outlet. At this time, the drive motor 54 is paused, and the rotation of the first spiral rod 3 and the second spiral rod 4 stops. After waiting for the pallet on the conveyor belt to be transferred out, the drive device 5 is started again and the above actions are repeated until the stacked pallets are distributed one by one from bottom to top.

[0078] Obviously, the above embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not intended to limit the embodiments of the present invention. For those skilled in the art, various obvious changes, readjustments and substitutions can be made without departing from the protection scope of the present invention. It is not necessary and impossible to list all the embodiments here. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the claims of the present invention.

Claims

1. A tray dispensing machine, characterized in that: include: A frame structure (1), wherein the frame structure (1) has a receiving cavity (11) for receiving a pallet, the top end of the receiving cavity (11) being a pallet placement entrance, the bottom end being a pallet distribution exit, and the bottom end of the receiving cavity (11) being provided with a pallet conveying device (2); A material discharge support assembly, the material discharge support assembly comprising a first spiral rod (3), at least two of the first spiral rods (3) are provided, the two first spiral rods (3) are rotatably arranged in the frame structure (1) and are located on opposite sides of the frame structure (1), the axial direction of the first spiral rod (3) is arranged along the vertical direction, and the spiral blade of the first spiral rod (3) is partially located in the accommodating cavity (11); A driving device (5), wherein the driving device (5) is connected to the two first spiral rods (3) and is used to drive the two first spiral rods (3) to rotate synchronously, so that the tray can be supported on the spiral blades of the first spiral rods (3) or fall onto the tray conveying device (2) through the distribution outlet.

2. The tray dispensing machine according to claim 1, characterized in that A first outer tooth ring (31) is provided on the circumferential side of the first spiral rod (3), and the driving device (5) comprises: A sprocket, at least one sprocket is provided, the sprocket is rotatably arranged in the frame structure (1), and the axial direction of the sprocket is arranged along the vertical direction; A first chain (52), the first chain (52) being connected to the sprocket and the first outer toothed rings (31) of the two first spiral rods (3); A power device is arranged in the frame structure (1) and an output end is connected to the sprocket.

3. The tray dispensing machine according to claim 2, characterized in that The frame structure (1) is arranged in a rectangular frame, and one side of the frame structure (1) is a loading end; The sprocket comprises: A driving sprocket (511), the output end of the power device being connected to the driving sprocket (511); A first guide sprocket (512), wherein the first guide sprocket (512) and the driving sprocket (511) are respectively arranged at two corners of the frame structure (1) away from the feeding end; A second guide sprocket (513), the second guide sprocket (513) is arranged away from the feeding end, and the peripheral side of the second guide sprocket (513) is linked to the outer side of the first chain (52) to pull the first chain (52) away from the feeding end and link it to the first outer tooth ring (31).

4. The tray dispensing machine according to claim 2 or 3, characterized in that: The material discharge support assembly further comprises a second spiral rod (4), at least two of which are provided, and the two second spiral rods (4) are rotatably provided in the frame structure (1), and the second spiral rod (4) is the same in shape and size as the first spiral rod (3) and rotates synchronously with the first spiral rod (3).

5. The tray dispensing machine according to claim 4, characterized in that A second outer toothed ring (41) is disposed on the circumferential side of the second spiral rod (4), and a third outer toothed ring (32) is also disposed on the circumferential side of the first spiral rod (3), the third outer toothed ring (32) and the first outer toothed ring (31) are spaced apart from each other along the axial direction of the first spiral rod (4), and the second outer toothed ring (41) and the third outer toothed ring (32) are located in the same horizontal plane, and the driving device (5) further comprises: A second chain (53), wherein two second chains (53) are provided, wherein one second chain (53) is respectively connected to the second outer tooth ring (41) of one second spiral rod member (4) and the third outer tooth ring (32) of one first spiral rod member (3).

6. The tray dispensing machine according to claim 4, characterized in that The pitch of the spiral blade of the first spiral rod (3) and the spiral blade of the second spiral rod (4) matches the thickness of the pallet and the number of lines is at least one, so that the two ends of the spiral blade can support at least two stacked pallets respectively.

7. The tray dispensing machine according to claim 3, characterized in that: The power device comprises a driving motor (54), the output end of the driving motor (54) is provided with a reduction device (55), and the output end of the reduction device (55) is connected to the driving sprocket (511).

8. The tray dispensing machine according to claim 5, characterized in that: The pallet dispenser also includes a chain tensioning assembly (6), and a plurality of the chain tensioning assemblies (6) are provided. The plurality of chain tensioning assemblies (6) are arranged on the frame structure (1) and are used to tension the first chain (52) and the second chain (53).

9. The tray dispensing machine according to claim 8, characterized in that The chain tensioning assembly (6) comprises: A fixing plate (61), wherein the fixing plate (61) is detachably mounted on the frame structure (1); A tensioning sprocket (62) is rotatably mounted on the fixing plate (61) with its rotation axis arranged in a vertical direction, and a peripheral side of the tensioning sprocket (62) is linked to the inner side or the outer side of the first chain (52) or the second chain (53).

10. The tray dispensing machine according to claim 3, characterized in that A surrounding frame (14) is arranged above the frame structure (1), and the surrounding frame (14) is arranged around three sides of the frame structure (1) and is located at the other side of the loading end and is open.

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