Turnover box lifting feeding device

Abstract

The utility model relates to a turnover box lifting feeding device which comprises a lifting platform, a plurality of limiting blocking strips, a bearing plate, a spacing rotating shaft, a rotating shaft seat frame and a base, the limiting blocking strips are arranged corresponding to the corners of the outline of a box body respectively, the limiting blocking strips are longitudinally arranged, and the bottom ends of the limiting blocking strips are fixedly connected with the base. Wherein the top end of one of the limiting blocking strips located at the corner has a trend towards the center of the contour of the turnover box to form an inward closing top, the lifting platform is arranged in the fence structure, and the two spaced rotating shafts are rotatably installed on the table top of the lifting platform through rotating shaft seat frames side by side. The bearing plate is arranged on the interval rotating shaft to form a storage panel for bearing the turnover box; by arranging the limiting blocking strips with the top ends provided with the inward-contracting top head structures, the function that the turnover boxes are detached one by one can be achieved in cooperation with the lifting action; and by arranging the two spaced rotating shafts in different shapes and cooperating with the inward-closing top heads on the limiting blocking strips, the detaching stability of the turnover box can be improved, and the feeding efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the field of feeding devices, in particular to a turnover box lifting feeding device. Background Art

[0002] At present, turnover boxes have been widely used in logistics and warehousing management. They are reusable and have a sturdy box body. They can be stacked and stored during transportation and warehousing, which saves space and increases the space utilization of storage and transportation. When not in use, the box lid can be opened and multiple boxes can be stacked together for storage. When needed, the stacked turnover boxes are placed at the lifting and feeding position, and workers or corresponding clamping machinery are at the feeding position, and the turnover boxes are raised by the elevator to keep the feeding, and the stacked turnover boxes are then removed one by one at the feeding height for use. However, in this process, because the sturdy turnover boxes are also heavy, after the boxes are stacked together for storage, especially the turnover boxes with a relatively deep box body, there is still a large distance between the box openings of the two boxes after stacking, and the boxes will be stuck tightly, making it difficult to split the boxes. In order to solve this problem, this application is specially proposed. Utility Model Content

[0003] In order to solve the above technical problems, the utility model discloses a turnover box lifting and feeding device, which includes a lifting platform, a limit stop bar, a support plate, an interval rotating shaft, a rotating shaft seat and a base. The number of the limit stop bars is multiple, and they are respectively arranged corresponding to the corners of the box body contour. The limit stop bars are arranged longitudinally and the bottom ends are fixed to the base to form a fence structure that can encircle the turnover box. The top end of one of the limit stop bars located at the corner has a tendency to face the center of the turnover box contour, forming an inward-retracted head. The lifting platform is arranged in the fence structure, and the interval rotating shaft can be rotatably installed on the table of the lifting platform through the rotating shaft seat, and there are 2 of them arranged side by side to form a roller bracket that can support the support plate. The support plate is placed on the interval rotating shaft to form a storage panel for carrying the turnover box. The lifting platform can drive the interval rotating shaft to link the supporting plate to perform lifting and lowering actions close to or away from the base in the fence structure.

[0004] Specifically, both ends of the spacer shaft are provided with a protruding central shaft, and the shaft seat frame is provided with a bearing hole matching the protruding central shaft. The protruding central shaft is inserted into the bearing hole, and the bottom of the shaft seat frame is fixedly connected to the table surface of the lifting platform to form a support seat for supporting the spacer shaft, and the distance between the center of the bearing hole and the table surface of the lifting platform is greater than the maximum radius of the spacer shaft.

[0005] Specifically, the two spaced rotating shafts are respectively a cylindrical rotating shaft and an elliptical rotating shaft in an elliptical cylindrical shape. The elliptical rotating shaft is arranged on the side close to the limit bar with an inward-retracted head, and the short semi-axis length of the elliptical rotating shaft is equal to the radius of the cylindrical rotating shaft.

[0006] Specifically, it also includes a rotating drive member, which is fixedly installed on the lifting platform table. The driving end of the rotating drive member is fixedly connected to the protruding central shaft of the elliptical rotating shaft, driving the elliptical rotating shaft to rotate along the axis, forming a power mechanism in which the support plate pressed on the spaced rotating shaft can produce ups and downs.

[0007] Specifically, a rotating roller is provided between the adjacent limiting bars, and both ends of the rotating roller are rotatably connected to the adjacent limiting bars respectively. There are multiple rotating rollers, which are evenly arranged from the base to the top to form an unpowered roller slide.

[0008] Specifically, the inward-retracted head is an arc-shaped bar, and one end of the arc-shaped bar is fixedly connected to the end of the limit stop bar, and the other end extends toward the center of the outline of the fence structure.

[0009] Specifically, the inward-retracting head includes a top block and a clamping plate. The top block is a three-dimensional block structure and is fixed to the end of the limit strip. The clamping plate is covered and installed on the top surface of the top block, and the edge protrudes from the circumference of the top block to form an eaves-like structure extending outward, and there is an inward-concave arc transition between the circumference of the top block and the eaves-like structure.

[0010] Specifically, the lifting platform is a scissors-type lifting platform.

[0011] Specifically, it also includes a control device, which is respectively connected to the lifting platform and the receiving and sending device of the rotating drive member to form a control circuit.

[0012] Advantages and effects

[0013] By setting a limit bar with an inward-retracted head structure on the top and coordinating the lifting action, the turnover boxes can be separated one by one; by setting two interval rotating shafts of different shapes, the inclination state of the turnover box can be changed through the rotation of the elliptical rotating shaft, and coordinating with the inward-retracted head on the limit bar, the stability of the turnover box removal can be improved, and the feeding efficiency can be improved; by using a scissors-type lifting platform, the lifting force on the turnover box is increased, and the stabilizing effect of being able to clamp the edge of the turnover box is further increased. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is one of the structural diagrams of the turnover box lifting and feeding device of the utility model;

[0015] Figure 2 This is the second structural diagram of the turnover box lifting and feeding device of the utility model;

[0016] Figure 3 This is the third structural diagram of the turnover box lifting and feeding device of the utility model;

[0017] Figure 4This is a structural diagram of the inward-retracted top end of the limit stop bar of the utility model.

[0018] Legend: 1. Lifting platform; 2. Limiting bar; 21. Rotating roller; 22. Top block; 23. Clamping plate; 3. Support plate; 4. Spacer shaft; 41. Protruding spindle; 5. Rotating shaft bracket; 51. Bearing hole; 6. Base; 7. Rotating drive member. DETAILED DESCRIPTION

[0019] The present invention will be further described below with reference to the embodiments, but is not limited to the contents of the specification.

[0020] like Figures 1 to 3As shown, the utility model relates to a turnover box lifting and feeding device, which includes a lifting platform 1, a limit stop bar 2, a support plate 3, an interval rotating shaft 4, a rotating shaft seat 5 and a base 6. There are multiple limit stop bars 2, and they are respectively arranged corresponding to the corners of the box contour. The limit stop bars 2 are arranged longitudinally and the bottom ends are fixed to the base 6 to form a fence structure that can encircle the turnover box. The top end of one of the limit stop bars 2 located at the corner has a tendency to face the center of the turnover box contour, forming an inward-retracted head. The lifting platform 1 is arranged in the fence structure, and the interval rotating shaft 4 is rotatably installed on the table top of the lifting platform 1 through the rotating shaft seat 5, and there are 2 of them arranged side by side to form a roller bracket that can support the support plate 3. The support plate 3 is placed on the interval rotating shaft 4 to form a storage panel for carrying the turnover box. The lifting platform 1 can drive the interval rotating shaft 4 to link the supporting plate 3 to perform a lifting action close to or away from the base 6 in the fence structure. When the lifting platform 1 is in use, the stacked turnover boxes are placed on the support plate 3, and the lifting platform 1 is raised or lowered to drive the support plate 3 and the turnover boxes placed thereon to rise or fall. The support plate 3 and the interval rotating shaft 4 are arranged to facilitate the placement of the stacked turnover boxes. Specifically, the interval rotating shaft 4 installed on the table of the lifting platform 1 through the rotating shaft seat 5 can be rotated and can be used as a roller with a fixed position. Two limit bars 2 are set at the corners, and the two limit bars 2 are set at right angles. The top of one pair of limit bars 2 corresponding to the corner position of the turnover box tends to retract toward the middle. During the rising process of the turnover box, the turnover box can push open the inward head at the top of the limit bar 2. In order to facilitate transportation, there will be a protruding outer edge on the upper edge of the box body. After the outer edge of the box body passes through the inward head, the inward head of the limit bar 2 rebounds, and the end head is stuck on the outer edge of the box body to prevent it from falling back, forming a sliding structure similar to the ratchet teeth. Then the lifting platform 1 is lowered for a distance, so that the turnover box at the top end is stuck by the inward head and cannot be lowered together, so as to achieve the effect of separating the stacked boxes, move the box that has detached from the top, and then the lifting platform 1 completes the ascent and then descends for a distance to perform a cyclic action, thereby realizing the function of separating the stacked turnover boxes one by one.

[0021] Each end of the spacing shaft 4 is provided with a protruding spindle 41. The shaft mount 5 is provided with a bearing hole 51 that matches the protruding spindle 41. The protruding spindle 41 is inserted into the bearing hole 52. The bottom of the shaft mount 5 is fixedly connected to the tabletop of the lifting platform 1, forming a support base for the spacing shaft 4. The distance between the center of the bearing hole 51 and the tabletop of the lifting platform 1 is greater than the maximum radius of the spacing shaft 4. With the protruding spindle 41 as the rotation axis of the spacing shaft 4, it is installed through the bearing hole 51 on the shaft mount 5. The bearing hole 51 is equipped with a roller bearing, which can further reduce the rolling resistance of the spacing shaft 4.

[0022] like Figure 3As shown, the two spaced rotating shafts 4 are respectively a cylindrical rotating shaft and an elliptical rotating shaft in the shape of an ellipse. The elliptical rotating shaft is arranged on the side close to the limit bar 2 with an inward-retracted head, and the short semi-axis length of the elliptical rotating shaft is equal to the radius of the cylindrical rotating shaft. It also includes a rotating driving member 7, which is fixedly mounted on the table top of the lifting platform 1. The driving end of the rotating driving member 7 is fixedly connected to the protruding central shaft 41 of the elliptical rotating shaft, driving the elliptical rotating shaft to rotate along the axis, forming a power mechanism in which the supporting plate 3 pressed on the spaced rotating shaft 4 can produce ups and downs. When in use, the elliptical shaft is first kept in a state where the long semi-axis is horizontal. At this time, the support plate 3 is pushed into the lifting position on the two spaced shafts 4. The support plate 3 is in a horizontal state. Before the lifting platform 1 starts to rise, the rotating drive member 7 is started first and drives the elliptical shaft to rotate 90°, so that the long semi-axis rotates from a horizontal state to a longitudinal vertical state. At this time, the support plate 3 is high on the elliptical shaft side and low on the cylindrical shaft, forming an inclined supporting surface. Because the limit bar 2 is provided, the turnover box in the inclined state will not fall over. Then the lifting platform 1 starts to rise. When it rises to the turnover box detachment position, it is consistent with the above-mentioned sliding card action, but because the turnover box is inclined and the high position of the inclined state is located on the side where the inward-retracting head is provided, the lifting platform 1 rises, and after the turnover box above it rises to a height that is stuck by the inward-retracting head, the inward-retracting head presses against the edge of the turnover box, and the lifting platform 1 does not need to perform a descending action. At this time The rotating drive member 7 drives the elliptical shaft to rotate 90° again, and the long semi-axis of the elliptical shaft rotates from the longitudinal vertical state to the horizontal state, and the turnover box recovers from the inclined state to the upright state. The high position in the inclined state is lowered, and the inward-retracted head lifts the turnover box at the upper end to realize the function of detaching the turnover box. The turnover box lifting and detaching structure set in this way can change the speed of the turnover box from the inclined state to the upright state by setting the long and short radius values ​​of the elliptical shaft and the rotation speed. During the rotation process, the stacked turnover boxes shake from the inclined to the upright state, and the inward-retracted head with only one corner of the limit bar 2 can effectively ensure the disassembly and separation of the turnover box from the box stack, thereby improving the detachment stability and work efficiency of the device. Specifically, the rotating drive member 7 can use a stepping motor to realize the action of fixed rotation and stop and then rotate. In order to increase the rotation torque, a reduction gear can also be set as an intermediate transmission member.

[0023] like Figure 2As shown, rotating rollers 21 are provided between adjacent limit bars 2. The two ends of the rotating rollers 21 are rotatably connected to the adjacent limit bars 2. There are multiple rotating rollers 21, which are evenly arranged from the base 6 to the top, forming an unpowered roller slide. Due to the provision of a rotatable elliptical shaft, the turnover box is in an inclined state during ascent, and its edge will generate greater friction with the limit bars 2, which can easily cause it to become stuck and unable to rise. To solve this problem, rotating rollers 21 are provided between adjacent limit bars 2. This can effectively reduce the friction between the limit bars 2 and the turnover box, ensuring smooth lifting and feeding operations.

[0024] In the present invention, there are two styles of the inward-retracted head formed at the top of the limit strip 2. One of them is: Figure 1 As shown, the retracted head is an arc-shaped bar, one end of which is fixedly connected to the end of the limit stop bar 2, and the other end extends toward the center of the fence structure's outline. The top head, used to clamp the edge of the turnover box, is an arc-shaped bar. The arc-shaped bar is elastic, allowing the edge of the turnover box to pass through and then elastically recovering after passing, quickly clamping it at the edge of the box, preventing it from falling, thereby achieving the function of detaching the top box from the stack of boxes. Specifically, the retracted head of the limit stop bar 2 can be made of a highly elastic metal bar, such as spring steel. The limit stop bar 2 can ensure support and is lightweight and easy to install, such as aluminum alloy. The limit stop bar 2 and the retracted head can be fixedly installed using an adapter sleeve.

[0025] Second: If Figure 4 As shown, the inward-retracted head can be block-shaped. Specifically, the inward-retracted head includes a top block 22 and a clamping plate 23. The top block 22 is a three-dimensional block structure and is fixed to the end of the limit strip 2. The clamping plate 23 is covered and installed on the top surface of the top block 22, and the edge protrudes from the circumference of the top block 22 to form an eaves-like structure extending outward, and there is an inward-concave arc transition between the circumference of the top block 22 and the eaves-like structure. By setting the cover structure of the top block, the size of the card plate 23 can be changed to obtain an extended eave that can extend out of the edge of the peripheral surface to different lengths. The limit strip 2 is set to a cylindrical or square columnar structure with a similar shape to the top block 22. By rotating or changing the installation direction of the limit strip 2, the length of the extended eaves toward the middle position is changed to adapt to turnover boxes of different sizes and improve applicability. The arc transition can facilitate the smooth passage of turnover boxes, and the top edge of the rear card plate 23 is used to clamp the edge of the turnover box to complete the sliding and detaching action. This structure can use a material with a certain elasticity to make the limit strip 2, and the block-shaped inward-retracted head maintains rigidity to ensure strength when clamping the turnover box.

[0026] Because it is necessary to ensure that the inward-retracted head at the end of the limit bar 2 can be squeezed open during the rising process of the turnover box, so that the turnover box can pass through and ensure the stability of the edge of the box, the lifting platform 1 is a scissor-type lifting platform, which can provide greater lifting force and ensure that the table top can remain stable during the rise.

[0027] It also includes a control device, which is respectively connected to the signal receiving and sending device of the lifting platform 1 and the rotating drive member 7 to form a control circuit. The control device controls the start and stop time of the lifting platform 1 and the rotating drive member 7 to ensure the normal operation of the device.

[0028] Obviously, the above-described embodiments of the present invention are merely examples for the purpose of clearly illustrating the present invention and are not intended to limit the embodiments of the present invention. A person skilled in the art will readily appreciate that other variations or modifications based on the above description are possible. It is not possible to enumerate all embodiments here. Any obvious variations or modifications arising from the technical solution of the present invention remain within the scope of protection of the present invention.

Claims

1. A turnover box lifting and feeding device, characterized by: The utility model comprises a lifting platform (1), a limiting block bar (2), a supporting plate (3), an interval rotating shaft (4), a rotating shaft seat (5) and a base (6). The limiting block bars (2) are multiple in number and are respectively arranged corresponding to the corners of the box body contour. The limiting block bars (2) are arranged longitudinally and the bottom ends are fixedly connected to the base (6) to form a fence structure capable of enclosing the turnover box. The top end of one of the limiting block bars (2) located at the corner has a tendency to face the center of the turnover box contour to form an inward head. The lifting platform (1) is arranged in the fence structure. The interval rotating shaft (4) is rotatably installed on the table of the lifting platform (1) through the rotating shaft seat (5). The number of the interval rotating shafts is 2 and they are arranged side by side to form a roller bracket capable of supporting the supporting plate (3). The supporting plate (3) is placed on the interval rotating shaft (4) to form a storage panel for carrying the turnover box. The lifting platform (1) can drive the interval rotating shaft (4) to link the supporting plate (3) to perform a lifting action close to or away from the base (6) in the fence structure.

2. The turnover box lifting and feeding device according to claim 1, characterized in that: Both ends of the spaced rotating shaft (4) are provided with a protruding spindle (41), and the rotating shaft seat (5) is provided with a bearing hole (51) matching the protruding spindle (41). The protruding spindle (41) is inserted into the bearing hole (51). The bottom of the rotating shaft seat (5) is fixedly connected to the table surface of the lifting platform (1) to form a support seat for supporting the spaced rotating shaft (4), and the distance between the hole center of the bearing hole (51) and the table surface of the lifting platform (1) is greater than the maximum radius of the spaced rotating shaft (4).

3. The turnover box lifting and feeding device according to claim 2, characterized in that: The two spaced rotating shafts (4) are respectively a cylindrical rotating shaft and an elliptical rotating shaft in the shape of an ellipse. The elliptical rotating shaft is arranged on one side close to the limit bar (2) with an inward-retracted head, and the length of the minor semi-axis of the elliptical rotating shaft is equal to the radius of the cylindrical rotating shaft.

4. The turnover box lifting and feeding device according to claim 3, characterized in that: It also includes a rotating drive member (7) which is fixedly mounted on the tabletop of the lifting platform (1). The driving end of the rotating drive member (7) is fixedly connected to the protruding spindle (41) of the elliptical rotating shaft, driving the elliptical rotating shaft to rotate along the axis, thereby forming a power mechanism that can generate fluctuations when the supporting plate (3) is pressed against the spaced rotating shaft (4).

5. The turnover box lifting and feeding device according to claim 4, characterized in that: A rotating roller (21) is provided between the adjacent limiting bars (2), and both ends of the rotating roller (21) are respectively rotatably connected to the adjacent limiting bars (2). There are a plurality of rotating rollers (21), which are evenly arranged from the base (6) to the top to form an unpowered roller slideway.

6. The turnover box lifting and feeding device according to claim 1, characterized in that: The inward-retracted head is an arc-shaped bar, one end of which is fixedly connected to the end of the limit stop bar (2), and the other end of which extends toward the center of the outline of the fence structure.

7. The turnover box lifting and feeding device according to claim 1, characterized in that: The retracted head comprises a top block (22) and a clamping plate (23), wherein the top block (22) is a three-dimensional block structure and is fixedly connected to the end of the limit stop bar (2), and the clamping plate (23) is covered and installed on the top surface of the top block (22), and the edge thereof protrudes from the peripheral surface of the top block (22) to form an eaves-like structure extending outward, and an inwardly concave arc transition is provided between the peripheral surface of the top block (22) and the eaves-like structure.

8. The turnover box lifting and feeding device according to claim 1, characterized in that: The lifting platform (1) is a scissor-type lifting platform.

9. The turnover box lifting and feeding device according to claim 1, characterized in that: It also includes a control device, which is respectively connected to the signals of the receiving and sending devices of the lifting platform (1) and the rotating drive member (7) to form a control circuit.

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