Feeding temporary storage device

Abstract

The utility model relates to the technical field of automation equipment, in particular to a feeding buffering device which comprises a feeding assembly, a box returning assembly and a transferring assembly, the feeding assembly comprises at least one first conveying line, and the extending direction of the first conveying line is defined as the X axis; the first conveying line is used for conveying full turnover boxes with workpieces to the transferring assembly from the feeding end, the box returning assembly comprises at least one second conveying line extending in the X-axis direction, the second conveying lines are used for conveying empty turnover boxes to the feeding end, and the transferring assembly is arranged at one end of the feeding assembly and one end of the box returning assembly. And the material taking mechanism is used for grabbing the workpieces full of the turnover boxes and conveying the empty turnover boxes with the grabbed workpieces to the box returning assembly. According to the feeding temporary storage device, an operator can supply a plurality of turnover boxes at a time, so that the frequency of supplying workpieces or turnover boxes to assembly lines by the operator is reduced, each operator can operate a plurality of assembly lines, and the labor cost is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of automation equipment, and particularly relates to a feeding buffer device. Background Art

[0002] In an automatic assembly device, the feeding device is related to the feeding supply of the workpieces to be assembled and is a very important link. The workpieces to be assembled are usually placed in a turnover box in groups of several, but they need to be disassembled and fed one by one during feeding. The existing feeding methods include two types: (1) manually taking out the workpieces to be assembled from the turnover box and then placing them on the assembly line or the tooling plate one by one to realize single-by-single feeding of the workpieces; (2) manually placing the turnover boxes in front of the assembly line one by one, and the manipulator grabs the workpieces in the turnover box in turn and places them on the assembly line or the tooling plate to realize single-by-single feeding of the workpieces. No matter which of the above methods is used, it is necessary to place the turnover boxes or workpieces in sequence. The operator must stay in front of the assembly line according to the rhythm of the assembly line to place the workpieces or turnover boxes. Compared with directly placing the workpieces, even if the frequency of the operator placing the turnover boxes is reduced by means of the manipulator, the number of workpieces in each turnover box is limited, and the operator still needs to place the turnover boxes frequently, so that the number of assembly lines that an operator can operate is limited, which is not conducive to reducing the labor cost. Summary of the Invention

[0003] The purpose of the utility model is to provide a feeding buffer device to solve the problem of too high manual operation frequency in the existing feeding mode of the assembly line.

[0004] To achieve the above purpose, the technical solution of the utility model is: a feeding buffer device, including a feeding component, a box-returning component and a transfer component. The feeding component includes at least one first conveyor line. Define the extending direction of the first conveyor line as the X axis. The first conveyor line is used to convey the full turnover box with workpieces placed therein from the feeding end to the transfer component. The box-returning component includes at least one second conveyor line extending along the X axis direction. The second conveyor line is used to convey the empty turnover box to the feeding end. The transfer component is arranged at one end of the feeding component and the box-returning component, and is used for the picking mechanism to grab the workpieces in the full turnover box and convey the empty turnover box with the grabbed workpieces to the box-returning component.

[0005] In one embodiment, on the conveying plane of the first conveying line, the direction perpendicular to the X-axis is defined as the Y-axis direction, and the direction perpendicular to the X-axis and the Y-axis is the Z-axis direction. There are multiple first conveying lines, and the multiple first conveying lines are arranged at intervals along the Y-axis and Z-axis directions respectively. The transfer assembly includes multiple third conveying lines arranged at intervals along the Y-axis direction, and the number of the third conveying lines is the same as the number of the first conveying lines in the Y-axis direction. The transfer assembly further includes a first lifting mechanism, and the first lifting mechanism is connected to the third conveying line to lift the third conveying line along the Z-axis direction. The third conveying line is docked with the first conveying line by means of the lifting of the first lifting mechanism.

[0006] In one embodiment, the first lifting mechanism includes a first track and a first bracket that are slidably connected. The first track extends along the Z-axis, and the first bracket slides along the first track through a motor screw mechanism. The third conveying line is arranged on the first bracket, so as to lift along the Z-axis with the first bracket.

[0007] In one embodiment, there are multiple second conveying lines, and a certain number of the second conveying lines are arranged at intervals along the Y-axis direction, and the number of the second conveying lines arranged at intervals along the Y-axis direction is the same as the number of the third conveying lines. The third conveying line is also docked with the second conveying line by means of the lifting of the first lifting mechanism.

[0008] In one embodiment, the second conveying line is located in the Z-axis direction of the first conveying line.

[0009] In one embodiment, it further includes a box transfer assembly. The box transfer assembly includes a second lifting mechanism, a transverse movement mechanism, and a fourth conveying line. The fourth conveying line extends along the X-axis direction. The fourth conveying line is connected to the second lifting mechanism and the transverse movement mechanism and moves along the Y-axis and Z-axis directions under the drive of the two to dock with any one of the first conveying lines or the second conveying lines, so as to be used for transporting the full turnover box to any one of the first conveying lines, or for transporting the empty turnover box on the second conveying line to the turnover cart.

[0010] In one embodiment, the second lifting mechanism includes a second track and a second bracket that are slidably connected. The second track extends along the Z-axis direction, and the fourth conveying line is connected to the second bracket through the transverse movement mechanism. The transverse movement mechanism includes a transverse movement track and a transverse movement plate arranged on the second bracket. The fourth conveying line is arranged on the transverse movement plate; and / or,

[0011] The box transfer assembly is provided with a box grabbing mechanism located between two conveyor belts of the fourth conveyor line. The box grabbing mechanism is used to move the full turnover boxes from the turnover cart to the fourth conveyor line, and includes a box grabbing member that can selectively protrude and a driving member for driving the box grabbing member to move and grab the boxes.

[0012] In one embodiment, the box grabbing mechanism further includes a telescopic cylinder. The telescopic cylinder is eccentrically connected to the box grabbing member through a swing rod. The box grabbing member is rotatably arranged. The telescopic action of the telescopic cylinder drives the swing rod to swing, and then drives the box grabbing member to rotate. The box grabbing member is further provided with a box grabbing portion. The box grabbing portion selectively protrudes under the rotation of the box grabbing member, and is used to grab and pull the full turnover boxes by means of its protrusion.

[0013] In one embodiment, the box returning assembly further includes a buffer line for buffering the empty turnover boxes. The box transfer assembly is further used to transfer the empty turnover boxes on the second conveyor line to the buffer line.

[0014] In one embodiment, the buffer line and the second conveyor line are arranged at intervals in the Y-axis direction.

[0015] The beneficial effects of the present utility model are as follows: Through the feeding and buffering device of the present utility model, operators can supply multiple turnover boxes at one time. The feeding assembly sequentially conveys the turnover boxes to the transfer assembly so that the picking mechanism can pick the workpieces in the turnover boxes. After the turnover boxes are emptied, they can be temporarily stored in the box returning assembly, thereby reducing the frequency of operators supplying workpieces or turnover boxes to the production line. Each operator can operate multiple production lines, reducing labor costs. Through the box transfer assembly, operators can place the turnover cart with multiple turnover boxes in front of the feeding device, and then the box transfer assembly moves the turnover boxes on the turnover cart to the feeding assembly, further reducing the workload of operators, simplifying the feeding operation, and further reducing labor costs. Description of the Drawings

[0016] Figure 1 is a perspective view of an embodiment of the present utility model.

[0017] Figure 2 is a perspective view of the first frame structure of an embodiment of the present utility model Figure 1 .

[0018] Figure 3 is a perspective view of the first frame structure of an embodiment of the present utility model Figure 2 .

[0019] Figure 4 is a perspective view of the second frame structure of an embodiment of the present utility model.

[0020] Figure 5 is a perspective view of the third frame structure of an embodiment of the present utility model.

[0021] Figure 6 It is a partial structure three-dimensional view of the box transfer assembly of the embodiment of the present utility model.

[0022] Wherein: 1 is a feeding assembly, 11 is a first conveyor line, 2 is a box returning assembly, 21 is a second conveyor line, 22 is a buffer line, 3 is a transfer assembly, 31 is a third conveyor line, 32 is a first lifting mechanism, 321 is a first track, 322 is a first bracket, 323 is a motor screw mechanism, 4 is a box transfer assembly, 41 is a fourth conveyor line, 411 is a conveyor belt, 42 is a second lifting mechanism, 421 is a second track, 422 is a second bracket, 423 is a lifting motor, 424 is a transmission shaft, 425 is a belt drive group, 43 is a lateral movement mechanism, 431 is a lateral movement track, 432 is a lateral movement plate, 433 is a motor belt drive mechanism, 44 is a material hook mechanism, 441 is a box hook member, 4410 is a box hook portion, 442 is a driving member, 443 is a telescopic cylinder, 444 is a swing rod, 5 is a controller;

[0023] 10 is a turnover box, 101 is a full turnover box, 102 is an empty turnover box, 20 is a workpiece, 201 is a first workpiece, 202 is a second workpiece;

[0024] 100 is a first machine frame, 200 is a second machine frame, 300 is a third machine frame. Specific embodiments

[0025] To further illustrate the embodiments, the present utility model provides drawings. These drawings are part of the disclosure of the present utility model, which are mainly used to illustrate the embodiments and can be combined with the relevant descriptions in the specification to explain the operating principle of the embodiments. With reference to these contents, those of ordinary skill in the art should be able to understand other possible implementation manners and the advantages of the present utility model. The components in the drawings are not drawn to scale, and similar component symbols are usually used to represent similar components.

[0026] Refer to Figures 1 to 3 As shown, the present utility model discloses a loading buffer device, which is used for loading the workpieces 20 in the turnover box 10. After the operator supplies a plurality of full turnover boxes 101 to the loading buffer device at one time, the loading buffer device sequentially conveys the full turnover boxes 101 for a picking mechanism (such as a manipulator) to pick the workpieces 20 stored in the full turnover boxes 101, and sequentially stores the remaining empty turnover boxes 102 in the loading buffer device for the operator to pick up a plurality of empty turnover boxes 102 at one time to complete the loading of the workpieces 20. Among them, the turnover box 10 containing the workpiece 20 is defined as the full turnover box 101, and the turnover box 10 left after all the workpieces 20 are picked up is the empty turnover box 102.

[0027] Refer to Figures 1 to 4As shown in the figure, the loading buffer device includes a feeding component 1, a box-returning component 2, and a transfer component 3. The feeding component 1 includes four first conveyor lines 11. Define the extension direction of the first conveyor line 11 as the X-axis. On the conveying plane of the first conveyor line 11, define the direction perpendicular to the X-axis as the Y-axis direction, and define the direction perpendicular to the X-axis and the Y-axis as the Z-axis direction. The first conveyor line 11 is used to convey the full turnover box 101 with the workpiece 20 placed thereon from the loading end to the transfer component 3. The box-returning component 2 includes two second conveyor lines 21 extending along the X-axis direction. The second conveyor line 21 is used to convey the empty turnover box 102 to the loading end. The transfer component 3 is arranged at one end of the feeding component 1 and the box-returning component 2, and is used for the picking mechanism to grab the workpiece 20 in the full turnover box 101 and convey the empty turnover box 102 with the grabbed workpiece 20 to the box-returning component 2.

[0028] The loading end refers to the end where the full turnover box 101 is initially placed on the first conveyor line 11. The loading end and the end where the transfer component 3 is located are respectively at two opposite ends of the first conveyor line 11.

[0029] The operator can supply multiple full turnover boxes 101 with the workpiece 20 placed thereon to the loading buffer device at one time. The feeding component 1 conveys the full turnover boxes 101 to the transfer component 2 in sequence so that the picking mechanism can grab the workpiece 20 in the full turnover box 101. The empty turnover box 102 obtained after the turnover box 10 is emptied can be temporarily stored in the box-returning component 2, thereby reducing the frequency of the operator supplying the workpiece 20 or the turnover box 10 to the production line. Each operator can operate multiple production lines, reducing the labor cost.

[0030] The feeding component 1 and the box-returning component 2 are respectively arranged on the first rack 100, and the transfer component 3 is arranged on the second rack 200. Four first conveyor lines 11 are respectively arranged at intervals on the first rack 100 along the Y-axis and Z-axis directions. That is, two first conveyor lines 11 arranged along the Y-axis are in a group. The transfer component 3 includes two third conveyor lines 31 arranged at intervals along the Y-axis direction on the second rack 200. The transfer component 3 further includes a first lifting mechanism 32. The first lifting mechanism 32 is connected to the third conveyor line 31 for lifting the third conveyor line 31 along the Z-axis direction. The third conveyor line 31 is docked to the first conveyor line 11 by means of the lifting of the first lifting mechanism 32. In the Y-axis direction, two first conveyor lines 11 are provided. On the one hand, two full turnover boxes 101 can be transported to the transfer component 3 at one time, reducing the number of times the third conveyor line 31 is lifted and thus improving the transfer efficiency. On the other hand, full turnover boxes 101 containing different workpieces 20 can be transported on two first conveyor lines 11 at the same height in the two Z-axis directions, so as to facilitate the corresponding feeding of the two different workpieces 20. In addition, arranging multiple first conveyor lines 11 in the Y-axis direction can increase the number of first conveyor lines 11 when the dimension in the Z-axis direction is limited, thereby increasing the number of full turnover boxes 101 that an operator can supply at one time and reducing the feeding frequency of the operator on this production line.

[0031] There are two types of workpieces 20 in this embodiment, namely the first workpiece 201 and the second workpiece 202. The first workpiece 201 and the second workpiece 202 are respectively installed in different turnover boxes 10, and two first conveyor lines 11 at the same height in the Z-axis direction are respectively used to transport the full turnover box 101 containing the first workpiece 201 and the full turnover box 102 containing the second workpiece 202. Thus, the first workpiece 201 and the second workpiece 202 are supplied to the transfer component 3 in a quantity-matching manner, so as to facilitate the assembly of the first workpiece 201 and the second workpiece 202. The first workpiece 201 and the second workpiece 202 in this embodiment are respectively the bottom shell and the upper cover of a control box. Specifically, the first workpiece 201 is the bottom shell, and the second workpiece 202 is the upper cover.

[0032] The first conveyor line 11 located in the upper layer in the Z-axis direction is at a relatively high height, so that the workpiece 20 is also at a relatively high position, which is not conducive to the picking mechanism to pick up the workpiece 20. The transfer component 3 can move the turnover box 10 in the upper layer to a lower position, facilitating the picking mechanism to pick up the workpiece 20 and improving the feeding efficiency of the workpiece 20.

[0033] The first lifting mechanism 32 includes a first track 321 and a first bracket 322 that are slidably connected. The first track 321 extends along the Z-axis. The first bracket 322 slides along the first track 321 through a motor screw mechanism 323. The third conveyor line is arranged on the first bracket, so as to lift along the Z-axis as the first bracket does.

[0034] The two second conveyor lines 21 of the box-returning assembly 2 are arranged at intervals in the Y-axis direction. The third conveyor line 31 is also docked to the second conveyor line 21 by the lifting of the first lifting mechanism 32. The second conveyor line 21 is arranged below the first conveyor line 11. After the turnover boxes 10 on the third conveyor line 31 are emptied, the third conveyor line 31 descends and docks with the second conveyor line 21 to transport the empty turnover boxes 102 to the second conveyor line 21 for the discharging of the empty turnover boxes 102. In this embodiment, there are only two second conveyor lines 21 and four first conveyor lines 11. If all the turnover boxes 10 on the first conveyor line 11 are transferred to the box-returning assembly 2 via the transfer assembly 3, the second conveyor line 21 cannot hold all the turnover boxes 10. Therefore, the box-returning assembly 2 further includes a buffer line 22 for buffering the empty turnover boxes 102.

[0035] In this embodiment, the buffer line 22 is arranged at intervals in the Y-axis direction with respect to the first conveyor line 11 and the second conveyor line 21. The third conveyor line 31 of the transfer assembly 3 can only be docked with the first conveyor line 11 and the second conveyor line 21 in the Y-axis direction. Therefore, other structures are needed to transfer the empty turnover boxes 102 from the second conveyor line 21 to the buffer line 22. In this embodiment, the empty turnover boxes 102 on the second conveyor line 22 are transferred to the buffer line 22 by the box-transferring assembly 4.

[0036] There are two buffer lines 22. The two buffer lines 22 are arranged on the first rack 100 in the Z-axis direction and are at the same height as the first conveyor line 11 in the Z-axis direction. Therefore, there is space below the buffer line 22, and a controller 5 is provided in this space. The controller 5 is used to control the first conveyor line 11, the second conveyor line 21, and the buffer line 22 to transport the turnover boxes 10. In this embodiment, the first conveyor line 11, the second conveyor line 21, and the buffer line 22 each include two conveyor chains extending in the X-axis direction. The first conveyor line 11, the second conveyor line 21, and the buffer line 22 are arranged at intervals in the Y-axis and Z-axis directions, and the controller 5 is arranged below the buffer line 22, making the overall layout of the feeding assembly 1 and the box-returning assembly 2 on the first rack 100 more compact.

[0037] In other embodiments, the empty turnover boxes 102 can also be placed by increasing the number of the second conveying lines 21 in the Z-axis direction. For example, two second conveying lines are added above the first conveying line 11 so that the number of the second conveying lines 21 is the same as that of the first conveying line 11. In this case, the buffer line 22 does not need to be provided. Although this way of increasing the number of the second conveying lines 21 in the Z-axis direction will increase the height of the first rack 100 of the feeding assembly 1 and the box-returning assembly 2, it is not necessary to use the box-transferring assembly 4 to transfer the empty turnover boxes 102 from the second conveying lines 21 to the buffer line 22. Only the maximum distance of the third conveying line 31 ascending and descending in the Z-axis direction needs to be extended and the distance and direction of the third conveying line 31 ascending and descending are changed, so as to reduce the number of times of the box-transferring assembly 4 transferring the turnover boxes 10 and improve the efficiency.

[0038] Refer to Figure 1 、 Figure 5 and Figure 6 As shown in, the box-transferring assembly 4 includes a fourth conveying line 41, a second lifting mechanism 42 and a transverse movement mechanism 43. The fourth conveying line 41 extends along the X-axis direction. The fourth conveying line 41 is connected to the second lifting mechanism 42 and the transverse movement mechanism 43 and moves along the Y-axis and Z-axis directions under the drive of the two to dock with any one of the first conveying line 11, the second conveying line 21 and the buffer line 22, so as to convey the full turnover boxes 101 to any one of the first conveying lines 11, or to convey the empty turnover boxes 102 on the second conveying line 21 or the buffer line 22 to the turnover cart, and can also be used to convey the empty turnover boxes 102 on the second conveying line 21 to the buffer line 22.

[0039] Wherein, the turnover cart refers to a transfer tool for placing a plurality of turnover boxes 10 and equipped with walking wheels. Operators can transfer a plurality of turnover boxes 10 at one time by using the turnover cart. The turnover boxes 10, the turnover cart and the use of the turnover cart to transfer the turnover boxes 10 are all prior arts and will not be elaborated here.

[0040] Refer to Figure 5 and Figure 6 As shown in, the box-transferring assembly 4 is arranged on the third rack 300. The second lifting mechanism 42 includes a second track 421 and a second bracket 422 which are slidably connected. The second track 421 extends along the Z-axis direction. The fourth conveying line 41 is connected to the second bracket 422 through the transverse movement mechanism 43. More specifically, the second track 421 is a plurality of vertical rods extending along the Z-axis direction. The second bracket 422 is provided with a plurality of sliders sleeved on the vertical rods. The top of the third rack 300 is provided with a lifting motor 423. The lifting motor 423 is connected to the second bracket 422 through a transmission shaft 424 and a belt transmission group 425. Thus, the lifting motor 423 drives the second bracket 422 to lift along the second track 421, so as to drive the fourth conveying line 41 to lift along the Z-axis.

[0041] The transverse movement mechanism 43 includes a transverse movement track 431 and a transverse movement plate 432 provided on the second support 422, and the fourth conveyor line 41 is provided on the transverse movement plate 432. The transverse movement track 431 is a slide rail provided on the second support 422, and a slider slidably connected to the slide rail is provided on the bottom surface of the transverse movement plate 432. A motor belt drive mechanism 433 is provided on one side of the second support 422. The motor belt drive mechanism 433 is used to drive the transverse movement plate 432 to move along the transverse movement track 431, so as to drive the fourth conveyor line 41 to move along the Y axis.

[0042] The fourth conveyor line 41 includes two conveyor belts 411 provided on the transverse movement plate 432. The two conveyor belts 411 extend along the X-axis direction and are used to convey the turnover boxes 10 along the X-axis direction.

[0043] The box transfer assembly 4 is provided with a box picking mechanism 44 located between the two conveyor belts 411 of the fourth conveyor line 41. The box picking mechanism 44 is used to move the full turnover box 101 from the turnover cart to the fourth conveyor line 41, and includes a box picking member 441 that can selectively protrude and a driving member 442 that drives the box picking member 441 to move and pick the box. The box picking mechanism 44 further includes a telescopic cylinder 443. The telescopic cylinder 443 is eccentrically connected to the box picking member 441 through a swing rod 444. The box picking member 441 is rotatably provided. The telescopic action of the telescopic cylinder 443 drives the swing rod 444 to swing and further drives the box picking member 441 to rotate. The box picking member 441 is further provided with a box picking portion 4410. The box picking portion 4410 selectively protrudes under the rotation of the box picking member 441, and the box picking portion 4410 is used to hook and pull the full turnover box 101 by means of its protrusion. The driving member 442 is a motor gear and rack mechanism. The rack extends along the X-axis direction. The rotation of the motor drives the gear to rotate, so as to drive the rack to extend along the X-axis. The box picking member 441, the telescopic cylinder 442 and the swing rod 444 are all provided at the extending end of the rack. Therefore, the extension of the rack drives the box picking member 441, the telescopic cylinder 442 and the swing rod 444 to extend, so as to be prepared to hook and pull the turnover box 10.

[0044] In the case of no box picking mechanism 44, the presence of the box transfer assembly 4 enables the operator to supply the full turnover box 101 to the feeding assembly 1 more conveniently. That is, the operator can place the full turnover box 101 on the fourth conveyor line 41 in sequence. At this time, the fourth conveyor line 41 stays at a position convenient for the operator to place the full turnover box 101 through the second lifting mechanism 42 and the transverse movement mechanism 43; it can also simplify the operation of the operator to transfer the empty turnover box 102 to the turnover cart. That is, the box transfer assembly 4 can transfer the empty turnover box 102 on the second conveyor line 21 and the buffer line 22 to a position convenient for the operator to carry the empty turnover box 102.

[0045] Furthermore, in this embodiment, a material hooking mechanism 44 is provided. Through the material hooking mechanism 44, the turnover box 10 can be automatically hooked and pulled from the turnover cart, further simplifying the operation of the operator for loading the turnover box 10. The operator only needs to push the turnover cart to a position where the material hooking mechanism 44 can hook and pull the turnover box 10.

[0046] The workpiece loading process of the present utility model includes loading the full turnover box 101, the picking mechanism grasping the workpiece 20, and the empty turnover box 102 flowing back. Refer to Figures 1 to 6 as shown below:

[0047] Loading the full turnover box 101: The operator places the turnover cart loaded with the full turnover box 101 at a predetermined position, which refers to the position where the material hooking mechanism 44 can hook and pull each full turnover box 101 on the turnover cart. The box hooking member 441 of the material hooking mechanism 44 extends beyond the full turnover box 101 under the drive of the driving member 442. During the extension of the box hooking member 441, the box hooking member 441 of the material hooking mechanism 44 remains lower than the bottom surface of the full turnover box 101 under the telescopic action of the telescopic cylinder 443 until it extends beyond the full turnover box 101, and then the box hooking member 441 rotates to make the box hooking portion 4410 protrude higher than the bottom surface of the full turnover box 101. The box hooking member 441 retracts to drive the full turnover box 101 to move along the X-axis direction until the full turnover box 101 is pulled onto the fourth conveyor line 41. The fourth conveyor line 41 is docked to one of the first conveyor lines 11 under the drive of the second lifting mechanism 42 and the transverse movement mechanism 43. The conveyor belt 411 of the fourth conveyor line 41 operates to convey the full turnover box 101 onto the first conveyor line 11. The first conveyor line 11 operates to convey the full turnover box 101 to one end of the transfer assembly 3. The two third conveyor lines 31 of the transfer assembly 3 are docked to the two first conveyor lines 11 with full turnover boxes 101 under the drive of the first lifting mechanism 32. The two first conveyor lines 11 operate to respectively convey the full turnover boxes 101 thereon to the two third conveyor lines 31. The third conveyor line 31 is lifted to a position convenient for the picking mechanism to grasp the workpiece 20 under the drive of the first lifting mechanism 32.

[0048] The picking mechanism grasping the workpiece 20: The picking mechanism sequentially grasps the workpiece 20 from the full turnover box 101 until all the workpieces 20 in the full turnover box 101 are grasped.

[0049] Empty turnover box 102 returns: The empty turnover box 102 after the workpiece 20 is grabbed is located on the third conveyor line 31. The two third conveyor lines 31 are lifted by the first lifting mechanism 32 to be docked with the two second conveyor lines 21, and the third conveyor line 31 operates to convey the empty turnover box 102 to the second conveyor line 21. The second conveyor line 21 operates to convey the empty turnover box 102 to the loading end. The fourth conveyor line 41 of the box transfer assembly 4 is docked with one of the second conveyor lines 21, and the second conveyor line 21 operates again to convey the empty turnover box 102 to the fourth conveyor line 41. At this time, the fourth conveyor line 41 has two paths to convey the empty turnover box 102: (1) The fourth conveyor line 41 is driven by the second lifting mechanism 42 and the transverse movement mechanism 43 to be docked with one of the buffer lines 22. The fourth conveyor line 41 operates to convey the empty turnover box 102 to the buffer line 22. Until it is convenient for the empty turnover box 102 to be unloaded, the buffer line 22 conveys the empty turnover box 102 to the fourth conveyor line 41 for unloading; (2) The fourth conveyor line 41 is driven by the second lifting mechanism 42 and the transverse movement mechanism 43 to move to a position convenient for unloading, in preparation for the empty turnover box 102 to be unloaded. The above two paths are selected by those skilled in the art according to the actual needs of the production process and will not be elaborated here.

[0050] In the above embodiment, there are four first conveyor lines 11, and two second conveyor lines 21, third conveyor lines 31, and buffer lines 22 respectively. In other embodiments, only one first conveyor line 11 may be provided, and one second conveyor line 21 and one third conveyor line 31 may be correspondingly provided. At this time, the buffer line 22 may not be provided, so that the overall size of the feeding and buffering device is smaller, which is beneficial to the miniaturization of the equipment. At this time, the number of turnover boxes 10 fed at one time can be increased by extending the lengths of the first conveyor line 11 and the second conveyor line 21 in the X-axis direction. In addition, the number of the first conveyor line 11, the second conveyor line 21, the third conveyor line 31, and the buffer line 22 may be other numbers than the above, but it should be noted that the number of the third conveyor line 31 in the Y-axis direction corresponds to the number of the first conveyor line 11 and the second conveyor line 21 in the Y-axis direction to facilitate the efficient transfer of the turnover box 10.

[0051] Although the present invention is specifically shown and introduced in combination with the preferred implementation, those skilled in the art should understand that the remaining unstated parts are the prior art, and various changes made to the present invention in form and details without departing from the spirit and scope of the present invention defined by the appended claims all fall within the protection scope of the present invention.

Claims

1. A feeding buffer device, characterized in that: It includes a feeding component, a box return component and a transfer component. The feeding component includes at least one first conveying line. The extension direction of the first conveying line is defined as X. Axis, the first conveyor line is used to convey the full turnover box with workpieces placed therein from the loading end to the transfer assembly, the return box assembly includes at least one second conveyor line extending along the X-axis direction, the second conveyor line is used to convey the empty turnover box to the loading end, the transfer assembly is arranged at one end of the feeding assembly and the return box assembly, and is used for the feeding mechanism to grab the workpieces in the full turnover box and convey the empty turnover box with the grabbed workpieces to the return box assembly.

2. A material loading and caching device according to claim 1, characterized in that: On the conveying plane of the first conveyor line, the direction perpendicular to the X-axis is defined as the Y-axis direction, and the direction perpendicular to the X-axis and the Y-axis is defined as the Z-axis direction. There are multiple first conveyor lines, and the multiple first conveyor lines are arranged at intervals along the Y-axis and Z-axis directions, respectively. The transfer component includes multiple third conveyor lines arranged at intervals along the Y-axis direction, and the number of the third conveyor lines is the same as the number of the first conveyor lines in the Y-axis direction. The transfer component also includes a first lifting mechanism, which is connected to the third conveyor line for lifting the third conveyor line along the Z-axis direction, and the third conveyor line is connected to the first conveyor line by lifting and lowering the first lifting mechanism.

3. A material loading and caching device according to claim 2, characterized in that: The first lifting mechanism includes a first track and a first bracket that are slidably connected, the first track extends along the Z axis, the first bracket slides along the first track through a motor screw mechanism, and the third conveyor line is arranged on the first bracket so as to be lifted and lowered along the Z axis along with the first bracket.

4. A material loading and caching device according to claim 2, characterized in that: There are multiple second conveyor lines, a certain number of which are arranged at intervals along the Y-axis direction, and the number of the second conveyor lines arranged at intervals along the Y-axis direction is the same as the number of the third conveyor lines. The third conveyor line is also connected to the second conveyor line by means of the lifting and lowering of the first lifting mechanism.

5. A material loading and caching device according to claim 4, characterized in that: The second conveying line is located in the Z-axis direction of the first conveying line.

6. A material loading and caching device according to claim 4, characterized in that: It also includes a box transfer assembly, which includes a second lifting mechanism, a transverse movement mechanism and a fourth conveyor line. The fourth conveyor line extends along the X-axis direction. The fourth conveyor line is connected to the second lifting mechanism and the transverse movement mechanism and moves along the Y-axis and Z-axis directions under the drive of the second lifting mechanism and the transverse movement mechanism to dock with any one of the first conveyor lines or the second conveyor lines, so as to transport the full turnover box to any one of the first conveyor lines, or to transport the empty turnover box of the second conveyor line to the turnover vehicle.

7. A material loading and caching device according to claim 6, characterized in that: The second lifting mechanism includes a second rail and a second bracket that are slidably connected, the second rail extends along the Z-axis direction, and the fourth conveyor line is connected to the second bracket through a transverse mechanism; the transverse mechanism includes a transverse rail and a transverse plate arranged on the second bracket, and the fourth conveyor line is arranged on the transverse plate; and / or, the box moving assembly is provided with a hooking mechanism located between the two conveyor belts of the fourth conveyor line, the hooking mechanism is used to move the full turnover box from the turnover vehicle to the fourth conveyor line, and includes a hooking box member that can be selectively protruded and a driving member that drives the hooking box member to move the hooking box.

8. A material loading and caching device according to claim 7, characterized in that: The material hooking mechanism also includes a telescopic cylinder, which is eccentrically connected to the hook box member through a rocker arm. The hook box member is rotatably arranged, and the telescopic action of the telescopic cylinder drives the rocker arm to swing and then drives the hook box member to rotate. The hook box member is also provided with a hook box part, which selectively protrudes under the rotation of the hook box member, and the hook box part is used to hook and pull the full turnover box by means of its protrusion.

9. A material loading and caching device according to claim 6, characterized in that: The box return assembly also includes a cache line, which is used to cache the empty turnover boxes. The box transfer assembly is also used to transfer the empty turnover boxes on the second conveying line to the cache line.

10. A material loading and caching device according to claim 9, characterized in that: The cache line and the second transmission line are spaced apart from each other along the Y-axis direction.

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