A wood strip feeding device used when installing wood strips on the bottom of a molded tray

Abstract

The wood strip feeding device for wood strip loading on the bottom of a molded tray belongs to the technical field of feeding devices, and is used for improving the work efficiency of wood strip loading on the bottom of a molded tray, so that the wood strip high loading production line on the bottom of the molded tray can realize an automatic work mode. The wood strip feeding device comprises a support frame body for bearing various components, a plurality of wood strip bins for stacking wood strips are fixedly connected to the upper layer of the support frame body, a guide groove for guiding the movement of wood strips to a work area is arranged at the front end of the bottom of each wood strip bin, a feeding unit for moving the lowermost wood strip in the plurality of wood strip bins along the corresponding guide groove is slidably connected to the lower layer of the support frame body, the feeding unit comprises a sliding base slidably connected with the support frame body, and a plurality of push claws for pushing the lowermost wood strip in a single wood strip bin to move along the corresponding guide groove are detachably connected to the sliding base. The wood strip feeding device is mainly used as a device for continuously feeding wood strips to a wood strip production line for processing molded trays.

Description

Technical Field

[0001] This utility model belongs to the technical field of feeding devices, specifically relating to a wooden strip feeding device used when adding wooden strips to the bottom of a molded pallet. Background Technology

[0002] Molded pallets are one-piece molded pallets made primarily from wood shavings and plant straw. They possess excellent mechanical properties and are inexpensive, making them a primary transportation tool in the freight industry. However, with the increasing prevalence of smart warehousing, the existing structure of molded pallets is incompatible with the conveying mechanisms of automated racking systems. To enable molded pallets to work in conjunction with automated racking, three parallel wooden strips need to be added to the bottom of the pallet. Currently, this is done manually by adding the strips and securing them with nails, a relatively inefficient process. While automated board-nailing machines have been used to significantly improve efficiency and stability, manual placement of the strips is still required, leaving the entire assembly line semi-automated. Therefore, developing a wood strip feeding device for adding strips to the bottom of molded pallets is essential to improving the efficiency of the assembly line and enhancing automation. Utility Model Content

[0003] In order to improve the work efficiency of adding wooden strips to the bottom of molded pallets and realize the fully automated working mode of the production line for adding wooden strips to the bottom of molded pallets, this utility model provides a wooden strip feeding device for adding wooden strips to the bottom of molded pallets.

[0004] A wood strip feeding device for adding wood strips to the bottom of a molded pallet, the feeding device including a support frame for supporting various components;

[0005] The upper part of the support frame is fixedly connected to multiple wood strip bins for stacking wood strips;

[0006] Each timber clip has a guide groove installed at the bottom front end to guide the timber clips to the work area;

[0007] The lower layer of the support frame is slidably connected to a feeding unit for moving the lowest wood strip in multiple wood strip bins along the corresponding guide groove;

[0008] Furthermore, the feeding unit includes a sliding base that is slidably connected to the support frame, and multiple pushers are detachably connected to the sliding base for pushing the lowest wood strip in a single wood strip bin along the corresponding guide groove;

[0009] Furthermore, the back side of the timber bin is machined with a pusher groove for cooperating with the pusher claw, and the bottom front side of the timber bin is machined with a timber outlet that communicates with the guide groove;

[0010] Furthermore, the bottom of the timber bin is equipped with multiple sets of rollers to support the bottom timber strips;

[0011] Furthermore, the support surface of the guide groove is coplanar with the support surface of the roller;

[0012] Furthermore, a set of slide rails for sliding connection with the feeding unit is installed on the lower layer of the support frame;

[0013] Furthermore, the sliding base includes a support plate for supporting multiple pushers, and the bottom of the support plate is equipped with multiple sliders for cooperating with the slide rail;

[0014] Furthermore, the pusher includes a support arm for fixedly connecting to the pallet, a push block for pushing the wooden strip is hinged to the top of the support arm, and a reset assembly for resetting the push block is also installed on the support arm;

[0015] Furthermore, the reset assembly includes a spring for driving the push block to reset, and a central bolt for constraining the compression direction of the spring is provided in the middle of the spring. Both the spring and the central bolt are mounted on a mounting plate located on the front side of the support arm.

[0016] Furthermore, the back side of the push block is machined with a downwardly extending downward pressure slope.

[0017] The beneficial effects of this application compared to the prior art are:

[0018] 1. The wood strip feeding device provided in this application is used when adding wood strips to the bottom of a molded pallet. It can push stacked wooden boards one by one to the work area and position them to fit with the molded pallet to be assembled. By adding the wood strip feeding device provided in this application to the existing molded pallet wood strip adding production line, the automation of the production line itself can be greatly improved, and the wood strip adding efficiency can be increased by at least 20%.

[0019] 2. The wood strip feeding device provided in this application is used when adding wood strips to the bottom of a molded pallet. The pusher structure used to push the wood strips into the working part is provided with a self-resetting component. The self-resetting component can improve the working flexibility of the pusher working part and eliminate motion interference generated in the reciprocating motion of the pusher. Moreover, this self-resetting component is mainly composed of springs and is a purely mechanical structure. It does not require other power sources during use and has the advantages of low cost and high stability. Attached Figure Description

[0020] Figure 1 This is a front view schematic diagram of the wood strip feeding device described in this application;

[0021] Figure 2 This is a side view of the wood strip feeding device described in this application;

[0022] Figure 3 This is a top view of the wood strip feeding device described in this application;

[0023] Figure 4 This is an isometric view of the wood strip feeding device described in this application;

[0024] Figure 5 This is a schematic diagram of the wood strip feeding device described in this application;

[0025] Figure 6 This is a front view schematic diagram of the feeding unit in the wood strip feeding device described in this application;

[0026] Figure 7 This is a top view of the feeding unit in the wood strip feeding device described in this application;

[0027] Figure 8 This is a side view of the feeding unit in the wood strip feeding device described in this application;

[0028] Figure 9 This is an isometric view of the feeding unit in the wood strip feeding device described in this application;

[0029] Figure 10 This is a front view schematic diagram of the pusher claw in the wood strip feeding device described in this application;

[0030] Figure 11 This is a side view of the pusher claw in the wood strip feeding device described in this application;

[0031] Figure 12 This is a top view of the pusher claw in the wood strip feeding device described in this application;

[0032] Figure 13 This is a schematic diagram of the pusher claw in the wood strip feeding device described in this application, pointing in the AA direction.

[0033] In the picture:

[0034] 1. Support frame; 11. Power module mounting plate;

[0035] 2 wooden crates, 21 rollers;

[0036] 3 guide grooves;

[0037] 4 slides;

[0038] 5. Sliding base, 51. Support plate, 52. Front support plate, 53. Connecting rod, 54. Slider;

[0039] 6. Push claw, 61. Support arm, 62. Mounting plate, 63. Push block, 64. Spring, 65. Center bolt;

[0040] 7 wooden strips. Detailed Implementation

[0041] Specific implementation method one: Combining Figures 1 to 13 This embodiment describes a wood strip feeding device used when adding wood strips to the bottom of a molded pallet. The feeding device includes a support frame 1 for supporting various components.

[0042] The upper part of the support frame 1 is fixedly connected to multiple wood strip bins 2 for stacking wood strips 7;

[0043] Each timber slat bin 2 has a guide groove 3 installed at the bottom front end to guide the timber slats 7 to the work area;

[0044] The lower layer of the support frame 1 is slidably connected to a feeding unit for moving the lowest wood strip in the multiple wood strip bins 2 along the corresponding guide groove 3;

[0045] The feeding unit includes a sliding base 5 that is slidably connected to the support frame 1;

[0046] Multiple pushers 6 are detachably connected to the sliding base 5 to push the lowest wooden strip in the single wooden strip compartment 2 along the corresponding guide groove 3;

[0047] The bottom of the timber storage compartment 2 is equipped with multiple sets of rollers 21 for supporting the bottom timber strips.

[0048] In this embodiment, the support frame 1 is installed on the side of the wooden strip addition production line at the bottom of the pallet to support the components required in the feeding device. The wooden strip bin 2 is mainly used to support the wooden strips 7 that need to be added. The wooden strips 7 are stacked in the wooden strip bin 2. The top of the wooden strip bin 2 is the feeding end and the bottom is the discharging end. Each feeding only transports the wooden strip 7 at the bottom of the wooden strip bin 2 to the working area. There are three wooden strip bins 2. The three wooden strip bins 2 are arranged parallel to each other on the top of the support frame 1 and are detached and connected to the support frame 1 by bolts and connecting blocks. The arrangement position of each wooden strip bin 2 corresponds to a set of three horizontally arranged support legs at the bottom of the molded pallet. In this way, after the wooden strip at the bottom of the wooden strip bin 2 is pushed out by the pusher 6, the wooden strip can only be directly pushed to the addition position, realizing the automatic positioning of the wooden strip addition position.

[0049] The bottom front of the timber slat container 2 has an opening. The bottom timber slat of the timber slat container 2 can be pushed out through this opening by the pusher claw 6. The middle of the back side of the timber slat container 2 has a longitudinally extending slot. It is worth noting that the width of the slot is smaller than the width of the timber slat container 2, but larger than the width of the pusher claw 6, so that the pusher claw 6 can pass smoothly through the bottom timber slat 7 of the timber slat container 2 without movement interference. The slot on the back side of the timber slat container 2 has two functions. The first function is that the operator can observe the number of remaining timber slats in the timber slat container 2 through the slot. The second function is that the protrusions extending inward on both sides after the slot on the back side of the timber slat container 2 can limit the timber slats and prevent the timber slat 7 from sliding out from the back side of the timber slat container 2.

[0050] The bottom of the wood strip bin 2 is provided with multiple sets of rollers 21. The multiple sets of rollers 21 are arranged equidistantly along the extension direction of the length of the wood strip bin 2. Each set of rollers 21 includes two rollers 21. The two rollers 21 are arranged opposite each other on both sides of the wood strip bin 2 along the center line of the width direction of the wood strip bin 2. Each roller 21 is fixedly connected to the corresponding side wall of the wood strip bin through a mounting seat. The axial direction of each roller 21 is the same as the width direction of the wood strip bin 2. There is also a passage gap between the two rollers 21 in each set. The width of the gap is slightly larger than the width of the pusher 6 to avoid motion interference of the pusher 6 during operation. The main function of the rollers 21 is to support the stacked wood strips. At the same time, the rolling elements in the rollers change the original sliding friction into rolling friction, which improves the smoothness of the wood strips being pushed out.

[0051] The guide groove 3 is located at the bottom front side of the wood strip bin 2, and its extension direction is the same as the length extension direction of the wood strip bin 2. The support surface of the guide groove 3 is coplanar with the support surface of the roller 21. This arrangement allows the wood strip 7 located at the bottom of the wood strip bin 2 to slide directly into the guide groove 3 and be guided and constrained by the guide groove 3, and then pushed by the pusher 6 to reach the working area. The guide groove 3 is composed of two opposing right-angle guide rails. The horizontal part of the right-angle guide rail is the support part, which is used to support the wood strip 7, and the vertical part of the right-angle guide rail is the limiting part, which is used to limit the two sides of the moving wood strip 7. One end of each right-angle guide rail is fixed to the bottom of one side wall in the wood strip bin 2. The connection is made of two right-angle guide rails. The other end of the guide rails is equipped with a limit block to constrain the extreme position of the wooden strip 7. When the wooden strip 7 contacts the limit block, it means that the wooden strip 7 has reached the working position. At this time, the pusher 6 will move in the opposite direction until it returns to the initial position, so as to push the next wooden strip. It is worth noting that the length of the guide groove 3 is longer than the length of the wooden strip 7. This is because when the wooden strip below is pushed away, the stacked wooden strips will fall under the action of gravity. If the length of the guide groove 3 is too short, the wooden strip pushed first will be affected by the wooden strip falling later, thus affecting the continuous pushing action of the wooden strip.

[0052] The feeding unit is a crucial component that drives the movement of the wood strips 7. To ensure the stability of the feeding unit's operation, two parallel slide rails 4 are arranged on the lower layer of the support frame 1 to constrain the movement trajectory of the feeding unit. Additionally, a power module mounting plate 11 is located at the bottom of the support frame 1. The power module mounting plate 11 is used to mount the drive device of the feeding unit. The drive device of the feeding unit is a lead screw and slider assembly, which is driven by a motor. The motor is mounted on the top of the power module mounting plate 11, and the lead screw is fixed to the power module mounting plate by two bearing seats with bearings. The top of 11 is connected to the power output shaft of the motor via a coupling. The nut slider is mounted on the screw. As the motor rotates, the screw rotates. At this time, the slider will slide along the axis of the screw. The slider is fixed to the bottom of the support plate 51 in the sliding base 5 by bolts. The bottom of the support plate 51 is provided with two sliders 54 that are slidably connected to the slide rail 4. The sliders 54 and the slide rail 4 ensure the stability of the sliding base 5. The top of the support plate 51 is provided with three push claws 6 along its length. When arranged, each push claw 6 is set to correspond to a wooden strip bin 2.

[0053] The pusher 6 includes a support arm 61, a push block 63, a spring 64, and a center bolt 65. The support arm 61 is the main support structure and is detachably connected to the support plate 51 via bolts. The push block 63 is hinged to the support arm 61 via a pin and can swing up and down. A mounting plate 62 is located on the front side of the support arm 61, below the push block 63. The mounting plate 62 has mounting holes, and the sidewalls of the mounting holes have locking threaded holes. The bottom of the push block 63 has a slotted through hole corresponding to the mounting hole. The bottom of the center bolt 65... The end of the bolt passes through the strip-shaped through hole on the push block 63 and is inserted into the mounting hole on the mounting plate 62. The center bolt 65 is fixedly connected to the mounting plate 62 by the compression of the side locking bolt. The bolt head of the center bolt 65 remains in the push block 63. The spring 64 is disposed between the push block 63 and the mounting plate 62. The spring 64 is used to provide flexible support for the push block 63 and can also reset the push block 63. The center bolt 65 is used to constrain the bending direction of the spring 64, and the bolt head at its end can also limit the working position of the push block 63. Figure 10 and Figure 13As shown, when the pusher block 63 is normally pushing, it is parallel to the pallet 51 (during this process, the spring 64 is in a slightly compressed state and always applies a rebound force to the pusher block 63; due to the limiting effect of the bolt head in the central bolt 65, the working position of the pusher block 63 can always be kept stable). The front side of the pusher block 63 is the contact surface with the wood strip 7. However, as mentioned above, when the bottom wood strip 7 in the wood strip bin 2 is pushed away, the stacked wood strips will automatically fall. At this time, the pusher claw 6 will be located between the two wood strips 7. If continuous feeding is to be achieved, the pusher claw 6 needs to return to its initial position before it can push the subsequent wood strips. Therefore, the height of the pusher claw 6 needs to change adaptively during the return process. The flexible support provided by the spring 64 can achieve this purpose well. When the sliding base 5 drives the pusher 6 to retract, the pusher block 63 contacts the front end of the rear wooden strip. Since the rear wooden strip is constrained by the wooden strip compartment 2, its position will not change. Because the pusher block 63 is flexibly supported by the spring 64, it will swing downward after contacting the front end of the rear wooden strip. During this process, the spring 64 is in a compressed state, but it will provide an upward elastic force so that the top of the pusher block 63 is always in contact with the bottom of the wooden strip 7. When the sliding base 5 drives the pusher 6 to retract to the initial position, there is no wooden strip on the top of the pusher block 63, and the pusher block 63 will also return to the initial position under the action of the spring 64. The back side of the pusher block 63 is also processed with a downwardly extending downward pressure ramp so that when the back side of the pusher block 63 contacts the wooden strip, it can swing downward smoothly and avoid interference or jamming in planar contact.

[0054] Specific Implementation Method Two: Combining Figures 6 to 9 This embodiment differs from specific embodiment one in that the sliding base 5 further includes a front support plate 52 and two support rods 53. The front support plate 52 is located in front of the support plate 51 and is connected to the support plate 51 via the two parallel support rods 53. Other components and connections are the same as in specific embodiment one.

[0055] In this embodiment, the front support plate 52 is provided on the front side of the pallet 51 from the perspective of the overall working environment of the molded pallet loading wood strip production line. Generally, the wood strip feeding device and the wood strip nailing device are integrated together. In this way, the two mechanisms can be driven to move simultaneously by a single moving pair, which has certain technical advantages in terms of equipment integration. In this embodiment, the front support plate 52 is used to support the wood strip nailing device. At the same time, a slider 54 that is slidably connected to the slide rail 4 is added to the bottom of the front support plate 52. The working stability of the front support plate 52 is improved by the cooperation of the slider 54 and the slide rail 4.

[0056] The present invention has been disclosed above with reference to preferred embodiments, but it is not intended to limit the present invention. Any person skilled in the art can make some modifications or alterations to the above-disclosed structure and technical content to create equivalent embodiments without departing from the scope of the present invention. However, any simple modifications, equivalent changes and alterations made to the above embodiments based on the technical essence of the present invention without departing from the scope of the present invention shall still fall within the scope of the present invention.

[0057] Working principle

[0058] The wood strip feeding device provided in this application is used when adding wood strips to the bottom of a molded pallet. It is first assembled according to the connection relationship described in Specific Embodiment 1.

[0059] First, the workers place the stacked wooden strips 7 into the corresponding wooden strip bins 2. After all the wooden strips 7 are arranged, the working position of the feeding unit is checked to ensure that the pusher 6 is behind the bottom wooden strip 7 and that the working path of the pusher 6 is not interfered with. The drive device of the feeding unit is then activated, allowing the feeding unit to move along the length of the wooden strip bins 2. During this process, the pusher 6 pushes the corresponding wooden strip 7 to move on multiple sets of rollers 21. After the wooden strip 7 leaves the rollers 21 and enters the guide groove 3, it continues to push until the front end of the wooden strip 7 contacts the limit block on the front side of the guide groove 3, at which point the pushing action stops. (The limit block on the front side of the guide groove 3 integrates the limit switch of the feeding unit drive device. When the wooden strip 7 contacts the limit block...) Afterwards, the limit switch will control the drive device of the feeding unit to stop pushing. At this point, the wood strip 7 has entered the working area and can work with the nail gun to complete the work of adding wood strips to the bottom of the molded pallet. After the first batch of wood strips is added, the feeding unit will be driven by the drive device to return to the initial state in the opposite direction. During this process, the push block 63 on the top of the push claw 6 will contact the wood strip 7 behind and swing downward to avoid motion interference with the wood strip falling behind. When the push claw 6 returns to the initial position, the push block 63 will return to the initial state under the action of the spring 64 (that is, behind the wood strip 7 at the bottom of the wood strip bin 2). By repeating the above actions, the continuous supply of wood strips to the molded pallet processing wood strip production line can be achieved.

Claims

1. A wood strip feeding device used when adding wood strips to the bottom of a molded pallet, characterized in that: The feeding device includes a support frame (1) for supporting each component; The upper layer of the support frame (1) is fixedly connected to multiple wood strip bins (2) for stacking wood strips (7); Each timber bar compartment (2) has a guide groove (3) installed at the bottom of its front end to guide the timber bars (7) to move to the work area; The lower layer of the support frame (1) is slidably connected to a feeding unit for moving the lowest wood strip in the multiple wood strip bins (2) along the corresponding guide groove (3).

2. The wood strip feeding device used when adding wood strips to the bottom of a molded pallet according to claim 1, characterized in that: The feeding unit includes a sliding base (5) that is slidably connected to the support frame (1); Multiple pushers (6) are detachably connected to the sliding base (5) to push the lowest wooden strip in the single wooden strip bin (2) along the corresponding guide groove (3).

3. The wood strip feeding device used when adding wood strips to the bottom of a molded pallet according to claim 2, characterized in that: The back side of the wood strip bin (2) is machined with a push groove for cooperating with the push claw (6), and the bottom front side of the wood strip bin (2) is machined with a wood strip outlet that is connected to the guide groove (3).

4. The wood strip feeding device used when adding wood strips to the bottom of a molded pallet according to claim 3, characterized in that: The bottom of the timber bar compartment (2) is equipped with multiple sets of rollers (21) for supporting the bottom timber bar.

5. The wood strip feeding device used when adding wood strips to the bottom of a molded pallet according to claim 3, characterized in that: The support surface of the guide groove (3) is coplanar with the support surface of the roller (21).

6. The wood strip feeding device used when adding wood strips to the bottom of a molded pallet according to claim 1, characterized in that: A set of slide rails (4) for sliding connection with the feeding unit is installed on the lower layer of the support frame (1).

7. The wood strip feeding device used when adding wood strips to the bottom of a molded pallet according to claim 1, characterized in that: The sliding base (5) includes a support plate (51) for supporting multiple push claws (6); The bottom of the tray (51) is equipped with multiple sliders (54) for cooperating with the slide (4).

8. The wood strip feeding device used when adding wood strips to the bottom of a molded pallet according to claim 1, characterized in that: The pusher (6) includes a support arm (61) for fixed connection to the pallet (51), the top of the support arm (61) is hinged to a push block (63) for pushing the wooden strip (7) to move, and a reset assembly for resetting the push block (63) is also installed on the support arm (61).

9. The wood strip feeding device used when adding wood strips to the bottom of a molded pallet according to claim 1, characterized in that: The reset assembly includes a spring (64) for driving the push block (63) to reset. A central bolt (65) is provided in the middle of the spring (64) for constraining the compression direction of the spring (64). Both the spring (64) and the central bolt (65) are mounted on a mounting plate (62) located on the front side of the support arm (61).

10. A wood strip feeding device for adding wood strips to the bottom of a molded pallet according to claim 8 or 9, characterized in that: The back side of the push block (63) is machined with a downwardly extending downward pressure slope.

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