Cam mechanism for tray unstacking

Abstract

The utility model discloses a cam mechanism for unstacking trays, and relates to the technical field of unstacking and stacking equipment. The fork mechanism comprises a cam plate, a fork rod and a telescopic device, a cam groove of a b-shaped structure is formed in the side face of the cam plate and comprises a vertical section, a horizontal section, a vertical ascending section and a horizontal inserting section which are sequentially communicated, and the connecting point of the horizontal inserting section and the vertical section is lower than the upper end of the vertical section. The pallet fork rod is sleeved with a guide rod through a fixing sleeve, the telescopic end of the telescopic device is rotationally connected with the fixing sleeve, the guide rod is driven by the telescopic device to move in sequence along the cam groove, horizontal and vertical movement of the pallet fork rod is achieved, and layered unstacking operation of trays is completed. According to the utility model, the movement path of the guide rod is limited by the cam groove, and under the push-and-pull action of the telescopic device, the horizontal and vertical movement of the pallet fork rod is realized, the layered unstacking operation of trays is completed, and the problems of low working efficiency, high overall failure rate and high use cost of the existing stacking and unstacking equipment are solved.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of unstacking and stacking equipment, particularly relates to a cam mechanism for tray unstacking. BACKGROUND

[0002] The use of trays cannot be separated from industrial production and various industries. After use, the trays need to be stacked for storage, and when in use, the stacked trays must be unstacked.

[0003] For example, Chinese Utility Model CN214568744U discloses a tray stacking and unstacking equipment, which can support the tray by setting the mounting frame and the material supporting device. The tray lifting device is used in cooperation with the material supporting device to continuously push the tray into the material supporting device to perform stacking operation or to unstack the stacked tray located at the bottom layer.

[0004] The existing tray unstacking and stacking equipment has many components and a complex structure, which not only leads to low overall work efficiency, but also results in high overall failure rate and use cost. UTILITY MODEL CONTENTS

[0005] The utility model aims at providing a cam mechanism for tray unstacking, which limits the movement path of the guide rod through the b-shaped cam groove. Under the pushing and pulling action of the telescopic device, the horizontal and vertical movement of the fork rod is realized, the layered unstacking operation of the tray is completed, and the problems of low work efficiency, high overall failure rate, and high use cost of the existing unstacking and stacking equipment are solved.

[0006] To solve the above technical problems, the utility model is implemented by the following technical solutions:

[0007] The utility model discloses a cam mechanism for pallet unstacking, including cam plate, fork rod and telescopic device, the cam plate side is provided with cam groove, the cam groove whole b type structure is formed, including the vertical section that vertically sets up, with the vertical section lower extreme intercommunication horizontal section, with the vertical section end intercommunication vertical ascending section, with the vertical ascending section upper extreme intercommunication horizontal insertion section, and horizontal insertion section another end intercommunication with the vertical section, and the connecting point is lower than the upper end of vertical section, wherein, the setting depth of vertical ascending section lower extreme is greater than the setting depth of horizontal section, and the setting depth of upper end is less than and the setting depth of horizontal insertion section, the setting depth of horizontal insertion section is less than the depth of vertical section, the fork rod is connected through sliding assembly, for making it can slide in horizontal and vertical direction, the fixed sleeve is fixedly connected with the fork rod, and the fixed sleeve one end is sleeved with the guide rod, the guide rod is sleeved with the spring, and the guide rod is pushed through the spring, and makes its end and cam groove inner side keep close, the telescopic end of telescopic device is rotatably connected with the fixed sleeve, and the guide rod is moved along the cam groove in proper order through telescopic device drive, realizes the horizontal and vertical direction movement of fork rod, and completes the layered unstacking operation to pallet.

[0008] As a preferred technical scheme of the utility model, the setting depth of the horizontal section gradually decreases in the direction away from the vertical section.

[0009] As a preferred technical scheme of the utility model, the setting depth of the vertical ascending section gradually decreases from bottom to top.

[0010] As a preferred technical scheme of the utility model, the setting depth of the horizontal insertion section gradually decreases in the direction close to the vertical section.

[0011] As a preferred technical scheme of the utility model, the telescopic device is arranged obliquely relative to the vertical section.

[0012] As a preferred technical scheme of the utility model, one end of the guide rod is connected with a follower matched with the cam groove, and one end of the spring abuts against the follower.

[0013] The utility model has the following beneficial effects:

[0014] The utility model discloses a b type structure cam groove is set up on the cam plate, and through the telescopic device push and pull effect, makes the guide rod move along the vertical section, horizontal section, vertical ascending section and horizontal insertion section of cam groove in proper order, makes the fork rod move in horizontal and vertical direction, completes the layered unstacking operation to pallet, through a telescopic device as power output, can make the whole structure and transmission mode more simple and efficient, effectively reduces the overall failure rate and use cost.

[0015] Of course, any product implementing the utility model does not necessarily need to achieve all the advantages described above. BRIEF DESCRIPTION OF DRAWINGS

[0016] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings needed for the description of the embodiments will be briefly introduced. Obviously, the drawings in the following description are only some embodiments of the present application, and for those skilled in the art, other drawings can be obtained without creative labor on the basis of these drawings.

[0017] Figure 1 The structural diagram of a cam mechanism for pallet unstacking according to the present application;

[0018] Figure 2 The front view of Figure 1

[0019] Figure 3 The structural diagram of a fork rod and a telescopic device;

[0020] Figure 4 The structural diagram of a cam plate;

[0021] Figure 5 The structural diagram of another view; Figure 4

[0022] Figure 6 The schematic diagram of a pallet unstacking process;

[0023] In the drawings, the components represented by each reference numeral are listed as follows:

[0024] 1-cam plate, 2-fork rod, 3-telescopic device, 4-pallet stack, 101-vertical section, 102-horizontal section, 103-vertical upward section, 104-horizontal insertion section, 201-fixed sleeve, 202-guide rod, 203-spring, 204-follower. DETAILED DESCRIPTION

[0025] The technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only some embodiments of the present application, not all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0026] ​​In the description of the utility model, it is understood that the terms "opening", "upper", "lower", "thickness", "top", "middle", "length", "inner", "periphery" and the like indicate the orientation or positional relationship, which is only for the convenience of describing the utility model and simplifying the description, and is not indicative or suggestive of the components or elements indicated having a specific orientation, being constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the utility model.

[0027] Please refer to Figure 1 and 2 The utility model discloses a cam mechanism for pallet unstacking, including cam plate 1, pallet fork rod 2 and telescopic device 3.

[0028] As Figure 4 and 5 The cam groove specifically includes the vertical section 101 that is vertically set, the horizontal section 102 that is communicated with the lower end of the vertical section 101, the vertical ascending section 103 that is communicated with the end of the vertical section 101, the horizontal insertion section 104 that is communicated with the upper end of the vertical ascending section 103, and the other end of the horizontal insertion section 104 is communicated with the vertical section 101, and the connecting point is lower than the upper end of the vertical section 101, so that the horizontal insertion section 104 has a certain distance from the uppermost section of the vertical section 101.

[0029] The opening depth of the lower end of the vertical ascending section 103 is greater than the opening depth of the horizontal section 102, and the opening depth of the upper end is less than the opening depth of the horizontal insertion section 104, and the opening depth of the horizontal insertion section 104 is less than the depth of the vertical section 101, that is, a step surface is formed between the lower end of the vertical ascending section 103 and the horizontal section 102, and a step surface is formed between the upper end of the vertical ascending section 103 and the horizontal insertion section 104, and between the horizontal insertion section 104 and the vertical section 101, so as to limit the components sliding along the inside of the cam groove, so that they can only move in the direction of the horizontal section 102, the vertical ascending section 103 and the horizontal insertion section 104 in turn.

[0030] Specifically, the opening depth of the horizontal section 102 can be gradually reduced in the direction away from the vertical section 101 during processing, that is, the opening depth of the horizontal section 102 gradually becomes shallower, so that the lower end of the vertical ascending section 103 does not need to be opened to a deep depth, that is, a step surface is formed between the horizontal section 102. Similarly, the opening depth of the vertical ascending section 103 gradually decreases from bottom to top, and the opening depth of the horizontal insertion section 104 gradually decreases in the direction close to the vertical section 101, which gradually reduces the opening depth by gradually reducing the opening depth, thereby facilitating the reduction of processing difficulty.

[0031] The fork rod 2 is connected with the rack of the device through a sliding assembly, so as to enable the fork rod 2 to slide in the horizontal and vertical directions. As two sliding assemblies perpendicular to each other are connected with each other, and the fork rod 2 is connected with one of the sliding assemblies, and the other sliding assembly is connected with the rack of the device, the fork rod 2 can move in the horizontal and vertical directions.

[0032] As shown in Figure 3 , the fork rod 2 is fixedly connected with a fixed sleeve 201, the fixed sleeve 201 is fixedly connected with the fork rod 2, one end of the fixed sleeve 201 is sleeved with a guide rod 202, the guide rod 202 is sleeved with a spring 203, and the guide rod 202 is pushed by the spring 203, so that the end of the guide rod 202 is tightly attached to the inner side of the cam groove.

[0033] As preferred, one end of the guide rod 202 is connected with a follower 204 matched with the cam groove, and one end of the spring 203 abuts against the follower 204. Under the action of the spring 203, the follower 204 can be kept in the cam groove, and through the connection of the follower 204, the direct sliding between the guide rod 202 and the cam groove can be avoided, so that the abrasion and the large resistance are avoided, and the reliability and stability of operation are improved.

[0034] The telescopic device 3 can be a pneumatic cylinder or a hydraulic cylinder, one end of which is hinged with the rack of the device, and the telescopic end of the telescopic device 3 is rotationally connected with the fixed sleeve 201. At the same time, the telescopic device 3 is inclined relative to the vertical section 101, so that the horizontal and vertical components of the telescopic action are generated.

[0035] The guide rod 202 is driven by the telescopic device 3 to move along the cam groove in sequence, so as to realize the horizontal and vertical movement of the fork rod 2 and the layering and unstacking operation of the pallets.

[0036] Specifically, as shown in Figure 6 , in the initial position, the follower 204 is located at the lower end of the vertical rising section 103, and at this time, the fork rod 2 corresponds to the bottom layer of the pallet stack 4.

[0037] The telescopic rod of the telescopic device 3 is elongated to push the fork rod 2, and since the follower 204 is limited by the stepped surface at the connection between the horizontal section 102 and the vertical rising section 103, the follower 204 cannot slide into the horizontal section 102, but can only move upward along the vertical rising section 103, so as to make the fork rod 2 move upward, and make the follower 204 slide into the horizontal insertion section 104.

[0038] At this time, the fork rod 2 corresponds to the position of the second layer of the pallets below the pallet stack 4, that is, the length of the vertical rising section 103 can be flexibly adjusted according to the height of each layer of the pallets to be unstacked, so that the lifting height of the fork rod 2 is adapted to the height of each layer of the pallets to be unstacked.

[0039] The follower 204 slides into the horizontal insertion section 104, and the telescopic end of the telescopic device 3 continues to push the fork lever 2, so that the follower 204 moves along the horizontal insertion section 104 towards the vertical section 101, and then the fork lever 2 is inserted into the second layer of the tray below. The fork lever 2 can be arranged in the form of a forklift fork structure or other clamp structure according to the object to be unstacked.

[0040] After the follower 204 is moved into the vertical section 101 by the horizontal insertion section 104, the telescopic device 3 continues to push, and the follower 204 moves vertically upwards in the vertical section 101 from the connecting point of the horizontal insertion section 104 and the vertical section 101, so as to lift the second layer of the tray stack 4 upwards by the fork lever 2, so that only the bottom layer of the tray stack 4 is separated. At this time, the bottom layer of the tray can be moved out of the tray area under the action of an external force such as a conveying belt or a cylinder.

[0041] Finally, the telescopic end of the telescopic device 3 is retracted, and the follower 204 vertically descends along the vertical section 101, so that the fork lever 2 drives the tray stack 4 to descend, and when the follower 204 moves to the lower end of the vertical section 101, the tray stack 4 is placed in the tray area. When the telescopic end of the telescopic device 3 continues to retract, the follower 204 slides along the horizontal section 102 from the lower end of the vertical section 101, so as to pull the fork lever 2 out of the tray, i.e. back to the initial position.

[0042] The above process is sequentially cycled to realize the unstacking of the tray stack 4 layer by layer from bottom to top, and the unstacking is completed. By limiting the movement path of the fork lever 2 by the b-type cam groove structure, the unstacking can be realized, and the stacking effect can also be realized by adjusting the guide direction of the b-type cam groove.

[0043] The unstacking operation can be completed by the cam groove structure cooperating with a single cylinder and a hydraulic cylinder as a power output, so that the overall structure and transmission mode are more simple and efficient, and the overall failure rate and use cost are effectively reduced.

[0044] In the description of the present specification, the description of the terms "one embodiment", "example", "specific example" and the like means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present application. In the present specification, the illustrative description of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0045] The preferred embodiments disclosed above are only used to help describe the utility model. The preferred embodiments do not describe all the details and do not limit the utility model to the specific embodiments. Obviously, according to the content of the specification, many modifications and changes can be made. The specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the utility model, so that the persons skilled in the art can well understand and utilize the utility model. The utility model is limited by the claims and the entire scope and equivalents thereof.

Claims

1. A cam mechanism for pallet unstacking, characterised in that: The cam plate (1), the fork rod (2) and the telescopic device (3) are included. The cam groove is formed on the side of the cam plate (1), and the cam groove has a b-shaped structure as a whole, including a vertical segment (101) formed vertically, a horizontal segment (102) in communication with the lower end of the vertical segment (101), a vertical rising segment (103) in communication with the end of the vertical segment (101), and a horizontal insertion segment (104) in communication with the upper end of the vertical rising segment (103), and the other end of the horizontal insertion segment (104) is in communication with the vertical segment (101), and the connection point is lower than the upper end of the vertical segment (101). The opening depth of the lower end of the vertical rising segment (103) is greater than the opening depth of the horizontal segment (102), and the opening depth of the upper end is less than the opening depth of the horizontal insertion segment (104), and the opening depth of the horizontal insertion segment (104) is less than the depth of the vertical segment (101). The fork rod (2) is connected by a sliding assembly for sliding in horizontal and vertical directions, and the fork rod (2) is fixedly connected with a fixed sleeve (201), one end of the fixed sleeve (201) is sleeved with a guide rod (202), the guide rod (202) is sleeved with a spring (203), the guide rod (202) is pushed by the spring (203) to keep the end close to the inner side of the cam groove. The telescopic end of the telescopic device (3) is rotatably connected with the fixed sleeve (201), the guide rod (202) is driven by the telescopic device (3) to move along the cam groove in sequence, the horizontal and vertical movement of the fork rod (2) is realized, and the layering and unstacking work of the pallet is completed.

2. A cam mechanism for tray unstacking according to claim 1, wherein, The opening depth of the horizontal segment (102) gradually decreases in the direction away from the vertical segment (101).

3. A cam mechanism for tray de-palletizing according to claim 1 or 2, characterized in that, The opening depth of the vertical rising segment (103) gradually decreases from bottom to top.

4. A cam mechanism for pallet unstacking according to claim 1 or 2, characterised in that, The opening depth of the horizontal insertion segment (104) gradually decreases in the direction close to the vertical segment (101).

5. A cam mechanism for tray unstacking according to claim 1, wherein, The telescopic device (3) is inclined relative to the vertical segment (101).

6. A cam mechanism for pallet unstacking according to claim 1 or 5, characterised in that, One end of the guide rod (202) is connected with a follower (204) matched with the cam groove, and one end of the spring (203) abuts against the follower (204).

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