A holder for bending nails when nailing a moulded tray

Abstract

A kind of supporting plate for bending nail when die tray is nailed, belong to nail device technical field, in order to solve the problem that the effect of bending nail is unstable and the efficiency of bending nail is low when the bottom of die tray is fixed and installed with strip wood by artificial bending process, the supporting plate includes support plate body, a plurality of anvil foot units for nail bending are arranged on the support plate body, and each anvil foot unit is arranged corresponding to a nail area in die tray, the anvil foot unit includes support I-beam, the support I-beam is vertically arranged on the top of support plate body and is detachably connected with support plate body, the top of support I-beam is detachably connected with anvil foot, the anvil foot includes bottom connecting plate for detachable connection with support I-beam, the top of bottom connecting plate is detachably connected with anvil block, the top end of anvil block is processed with guide structure for changing the movement track of nail end, the application is mainly used for the bending nail structure used when die tray bottom is installed with wood strip.

Description

Technical Field

[0001] This utility model belongs to the technical field of nailing devices, specifically relating to a tray used for bending nails when nailing molded trays. Background Technology

[0002] The full name of a molded pallet is a plant fiber molded flat industrial pallet. This pallet uses raw materials such as wood shavings and plant straw, and has a one-piece structure, with the panel and nine support legs molded in one piece. The upper surface of the pallet is flat and smooth, suitable for transporting various goods, while the lower surface has reinforcing ribs. The pallet features balanced longitudinal and transverse force distribution, and its nine legs allow for four-way forklift insertion. As a flat, four-way forklift entry single-sided pallet, it cannot be used with the conveyor mechanism of automated guided vehicles (AGVs) due to its nine legs. To enable the molded pallet to work with AGVs, three parallel wooden strips need to be added to the bottom of the pallet. Each strip corresponds to one of the three transverse legs on the bottom of the pallet and is secured with nails. Since the molded pallet is formed in a single molding process, all nine legs are hollow. When securing the strips to the pallet with nails, the nail tips can extend into the hollow areas of the legs, potentially puncturing the outer packaging of goods during subsequent use. Therefore, additional nailing is required after each nailing operation. To ensure the safety of goods during pallet use, the tips of nails need to be bent manually. Typically, a strip of wood and a support leg require three or four nails to secure it. This means that a single pallet requires 27 or 36 bending operations. The bending process for a single pallet takes approximately 2-3 minutes. Including pallet transfer time, only about 15-20 pallets can be completed per hour, which is relatively inefficient. Furthermore, as working time increases, the bending effect of manual bending decreases, resulting in incomplete bending or loss of nails. Therefore, to ensure the effectiveness and efficiency of nail bending during the nailing of molded pallets, developing a support plate for bending nails during the nailing process is very much in line with practical needs. Utility Model Content

[0003] This utility model aims to solve the problems of unstable bending effect and low bending efficiency in the process of manually bending nails when fixing the bottom of the molded pallet to the strip wooden board. Therefore, it provides a tray for bending nails when nailing the molded pallet.

[0004] A tray for bending nails during nailing on a molded tray, the tray including a support plate body, on which a plurality of anvil units for bending nails are arranged, and each anvil unit is corresponding to a nailing area in the molded tray;

[0005] The anvil unit includes a supporting I-beam, which is erected on the top of the supporting plate and detachably connected to the supporting plate. The top of the supporting I-beam is detachably connected to an anvil.

[0006] The anvil includes a bottom connecting plate for detachable connection to the supporting I-beam, and an anvil block is detachably connected to the top of the bottom connecting plate. The top of the anvil block is machined with a guide structure for changing the movement trajectory of the nail end.

[0007] Furthermore, the guide structure at the top of the anvil block includes a first annular guide rounded corner groove, a second annular guide rounded corner groove, and a third annular guide rounded corner groove arranged sequentially from top to bottom, and the outer contour of the first annular guide rounded corner groove coincides with the inner contour of the second annular guide rounded corner groove, and the outer contour of the second annular guide rounded corner groove coincides with the inner contour of the third annular guide rounded corner groove.

[0008] Furthermore, the bottom of the first annular guide rounded corner groove is a rounded corner surface, and the radius of the rounded corner surface is 20mm;

[0009] Furthermore, the bottom of the second annular guide rounded corner groove is a rounded corner surface, and the radius of the rounded corner surface is 7.1 mm;

[0010] Furthermore, the bottom of the third annular guide rounded corner groove is a rounded corner surface, and the radius of the rounded corner surface is 4.97mm;

[0011] Furthermore, the top of the support plate is detachably connected to multiple lifting lugs for hoisting;

[0012] Furthermore, the support plate is detachably connected with multiple connecting bolts for connecting to the frame;

[0013] Furthermore, the bottom of the support plate is fixedly connected with multiple positioning pins for positioning with the frame;

[0014] The beneficial effects of this application compared to the prior art are:

[0015] 1. This application provides a tray for bending nails during the nailing process of a molded pallet. This tray structure is directly applied in the nailing process between strip wood and the molded pallet. The nailing area of ​​the molded pallet has nine supporting legs. During nailing, the anvil units in the tray are vertically upwards. The molded pallet is fastened onto the tray, ensuring that each anvil unit corresponds to a cavity in one of the supporting legs. During nailing, the nail tip enters the cavity of the supporting leg and contacts the anvil block in the anvil unit, bending towards the side wall of the supporting leg under the constraint of the guide structure at the top of the anvil block. The bending process ultimately causes the nail tip to enter the side wall of the support leg, rather than remaining in the cavity of the support leg. By introducing the tray structure of this application during the nailing process, the bending of the nail can be completed directly while nailing, which greatly improves the efficiency of the bending work. Compared with manual participation in the bending work, the total time for adding strips of wood to a single molded pallet is reduced by 70%-80%. Moreover, the molded pallet bent in this way has a good nail tip concealment effect, very stable effect, and extremely high yield, which greatly improves its market competitiveness.

[0016] 2. This application provides a tray for bending nails when nailing molded trays, wherein the anvil block in the anvil unit is a replaceable structure. When it is found that the guide ring groove is severely worn and cannot achieve the ideal bending effect, it can be replaced, which greatly improves the convenience of maintenance and reduces maintenance costs. Attached Figure Description

[0017] Figure 1 This is a front view schematic diagram of the pallet described in this application;

[0018] Figure 2 This is a top view of the pallet described in this application;

[0019] Figure 3 This is a three-dimensional schematic diagram of the pallet described in this application;

[0020] Figure 4 This is a schematic diagram of the anvil block in the tray described in this application;

[0021] Figure 5 This is a front view schematic diagram of the anvil block in the tray described in this application;

[0022] Figure 6 This is a side view of the anvil block in the tray described in this application;

[0023] Figure 7 This is a schematic diagram showing the fillet dimensions of each annular guide groove in the anvil block of the tray described in this application.

[0024] Figure 8 This is a schematic diagram of the nail positions at a single support leg in the molded pallet structure described in this application (fixed by three nails).

[0025] Figure 9 This is a schematic diagram of the nail positions at a single support leg in the molded tray structure described in this application (fixed by four nails).

[0026] In the figure: 1 Support plate, 2 Anvil, 21 Bottom connecting plate, 211 Side connecting threaded hole, 22 Anvil block, 221 First annular guide rounded corner groove, 222 Second annular guide rounded corner groove, 223 Third annular guide rounded corner groove, 224 Side stepped groove, 3 Support I-beam, 4 Lifting lug, 5 Connecting bolt and 6 Positioning pin. Detailed Implementation

[0027] Specific implementation method one: Combining Figures 1 to 9 This embodiment describes a tray for bending nails when nailing a molded tray. The tray includes a support plate 1, on which a plurality of anvil units for bending nails are arranged, and each anvil unit is corresponding to a nailing area in the molded tray.

[0028] The anvil unit includes a supporting I-beam 3, which is erected on the top of the supporting plate 1 and detachably connected to the supporting plate 1. Anvil 2 is detachably connected to the top of the supporting I-beam 3.

[0029] The anvil 2 includes a bottom connecting plate 21 for detachable connection with the supporting I-beam 3, and an anvil block 22 is detachably connected to the top of the bottom connecting plate 21. The top of the anvil block 22 is machined with a guide structure for changing the movement trajectory of the nail end.

[0030] The guide structure at the top of the anvil block 22 includes a first annular guide rounded corner groove 221, a second annular guide rounded corner groove 222 and a third annular guide rounded corner groove 223 arranged sequentially from top to bottom. The outer contour of the first annular guide rounded corner groove 221 coincides with the inner contour of the second annular guide rounded corner groove 222, and the outer contour of the second annular guide rounded corner groove 222 coincides with the inner contour of the third annular guide rounded corner groove 223.

[0031] This embodiment provides a pallet structure for assisting in bending the tips of nails when nailing wooden strips to the bottom of a molded pallet. The support plate 1 serves as the main load-bearing structure, supporting the anvil units. The number of anvil units is the same as the number of support legs in a conventional molded pallet, typically nine. The nine anvil units are arranged in a matrix of three horizontal and three vertical rows, ensuring that each anvil unit corresponds to one support leg in the molded pallet. Each anvil unit consists of an anvil block 2 and a support I-beam 3. Two connecting holes are machined on the two parallel steel plates of the support I-beam 3. Two threaded holes are machined in the corresponding area of ​​each support plate 1 and the support I-beam 3. The support I-beam 3 is detachably connected to the support plate 1 by two bolts. The working length of the support I-beam 3 can be changed according to the structural design of the molded pallet and the nailing machine.

[0032] The anvil block 2 consists of two parts: a bottom connecting plate 21 and an anvil block 22. The bottom connecting plate 21 is used for detachable connection with the supporting I-beam 3. The anvil block 22 is used to contact the tip of the nail and changes the direction of the nail tip through three annular guide rounded corner grooves on its top. The bottom of the bottom connecting plate 21 has two threaded holes machined and is detachably connected to the supporting I-beam 3 by bolts. The side of the bottom connecting plate 21 has two side connecting threaded holes 211 machined. The anvil block 22 has a corresponding side stepped groove 224 machined at the corresponding position of each side connecting threaded hole 211. The anvil block 22 is detachably connected to the bottom connecting plate 21 by bolts. The top guide structure of the anvil block 2 consists of three annular guide rounded corner grooves. The three annular guide rounded corner grooves are continuously arranged. No matter which annular guide rounded corner groove the tip contacts, the tip movement direction will change from vertical movement to horizontal movement, allowing the tip of the nail to enter the side wall of the supporting leg. The anvil block 2 is made of hard alloy steel, which has high hardness and good service life.

[0033] Specific Implementation Method Two: Combining Figures 1 to 9 This embodiment differs from Specific Embodiment 1 in that the bottom of the first annular guide rounded corner groove 221 is a rounded corner surface with a radius of 20mm; the bottom of the second annular guide rounded corner groove 222 is a rounded corner surface with a radius of 7.1mm; and the bottom of the third annular guide rounded corner groove 223 is a rounded corner surface with a radius of 4.97mm. Other components and connections are the same as in Specific Embodiment 1.

[0034] Specific implementation method three: Combining Figures 1 to 9 This embodiment differs from Specific Embodiment 1 in that the top of the support plate 1 is detachably connected to multiple lifting lugs 4 for hoisting. Other components and connection methods are the same as in Specific Embodiment 1.

[0035] In this embodiment, the pallet can be lifted and transported by the lifting lug 4, ensuring the portability of the pallet.

[0036] Specific implementation method four: Combination Figures 1 to 9 This embodiment differs from specific embodiment one in that the support plate 1 has multiple connecting bolts 5 for connecting to the frame. Other components and connection methods are the same as in specific embodiment one.

[0037] In this embodiment, the connecting bolt 5 is used to fix the tray to the working platform of the nailing machine to ensure its stability during operation.

[0038] Specific Implementation Method Five: Combining Figures 1 to 9 This embodiment differs from Specific Embodiment 1 in that the bottom of the support plate 1 is fixedly connected with multiple positioning pins 6 for positioning with the frame. Other components and connection methods are the same as in Specific Embodiment 1.

[0039] In this embodiment, the positioning pin 6 is used to position the pallet and the nailing machine to improve the accuracy of the working position of the pallet during operation.

[0040] 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.

[0041] Working principle

[0042] This application provides a tray for bending nails during the nailing of a molded pallet. In operation, the various components are first assembled according to the connection relationships described in Embodiments 1 to 5. The tray is then hoisted onto the nailing machine's work platform using lifting lugs 4, and its installation position is accurately positioned using positioning pins 6. After positioning, the tray is fixed to the nailing machine's work platform using multiple connecting bolts 5. After the tray is installed, the molded pallet to which wooden strips need to be added is inverted and placed on the tray, ensuring that each anvil unit enters one of the support legs of the molded pallet. The molded pallet is supported by nine anvil units. The wooden strips to be added are placed at the bottom of the molded pallet according to the design position, and then nailed using the nailing machine to fix the wooden strips to the molded pallet.

[0043] like Figure 8 and Figure 9As shown, to ensure connection strength, 3-4 nails are typically driven into the connection between the wooden strip and each leg. The specific distribution of these 3-4 nails is as follows. As can be seen from the nail distribution diagram, the working area of ​​these nails is located within the area of ​​the three annular guide rounded corner grooves on the top of the anvil block 22. When the tip of the nail passes through the wooden strip and the leg and enters the cavity inside the leg, the tip of the nail will contact the groove surface of the annular guide rounded corner groove and change its direction of movement from vertical to horizontal outward. In this way, the tip of the nail enters the side wall of the leg, achieving the purpose of hiding the tip of the connecting nail inside the cavity of the leg. Thus, when transporting bagged goods, the tip of the nail will not puncture the bag or cause leakage of goods, ensuring the safety of goods transportation.

Claims

1. A tray for bending nails during the nailing of a molded pallet, characterized in that: The tray includes a support plate (1), on which a plurality of anvil units for bending nails are arranged, and each anvil unit is corresponding to a nail area in the molding tray; The anvil unit includes a supporting I-beam (3), which is erected on the top of the supporting plate (1) and detachably connected to the supporting plate (1). The top of the supporting I-beam (3) is detachably connected to an anvil (2). The anvil (2) includes a bottom connecting plate (21) for detachable connection with the supporting I-beam (3), and an anvil block (22) is detachably connected to the top of the bottom connecting plate (21). The top of the anvil block (22) is machined with a guide structure for changing the movement trajectory of the nail end.

2. A tray for bending nails during the nailing of a molded pallet according to claim 1, characterized in that: The guide structure at the top of the anvil block (22) includes a first annular guide rounded corner groove (221), a second annular guide rounded corner groove (222), and a third annular guide rounded corner groove (223) arranged sequentially from top to bottom. The outer contour of the first annular guide rounded corner groove (221) coincides with the inner contour of the second annular guide rounded corner groove (222), and the outer contour of the second annular guide rounded corner groove (222) coincides with the inner contour of the third annular guide rounded corner groove (223).

3. A tray for bending nails during the nailing of a molded pallet according to claim 2, characterized in that: The bottom of the first annular guide rounded corner groove (221) is a rounded corner surface, and the radius of the rounded corner surface is 20mm.

4. A tray for bending nails during the nailing of a molded pallet according to claim 3, characterized in that: The bottom of the second annular guide rounded corner groove (222) is a rounded corner surface, and the radius of the rounded corner surface is 7.1mm.

5. A tray for bending nails during the nailing of a molded pallet according to claim 3, characterized in that: The bottom of the third annular guide rounded corner groove (223) is a rounded corner surface, and the radius of the rounded corner surface is 4.97mm.

6. A tray for bending nails during the nailing of a molded pallet according to claim 1, characterized in that: The top of the support plate (1) is detachably connected to multiple lifting lugs (4) for hoisting.

7. A tray for bending nails during the nailing of a molded pallet according to claim 1, characterized in that: The support plate (1) has multiple connecting bolts (5) for connecting to the frame.

8. A tray for bending nails during the nailing of a molded pallet according to claim 1, characterized in that: The bottom of the support plate (1) is fixedly connected with multiple positioning pins (6) for positioning with the frame.

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