Plastic tray welding machine

By improving the structural design of the plastic pallet welding machine and utilizing the cooperation of the feeding frame, feeding plate and welding components, precise welding of the thin side of the pallet was achieved, solving the problem of molten surface adhesion caused by excessive heating surface, and improving welding quality and efficiency.

CN224256100UActive Publication Date: 2026-05-19WUXI NIKO ULTRASONIC EQUIP CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
WUXI NIKO ULTRASONIC EQUIP CO LTD
Filing Date
2025-05-28
Publication Date
2026-05-19

AI Technical Summary

Technical Problem

In existing technologies, the heating surface of plastic pallet welding machines is too large, causing the molten surface of the pallet to stick together, which cannot meet the welding requirements of the thin side of the pallet.

Method used

A plastic pallet welding machine was designed. By connecting the feeding frame and the storage cabinet, and combining the feeding plate and welding components, the pallet is fixed by the drive source and clamping block. Combined with the adjusting pin and welding tube in the plug plate, high-frequency electrical energy is converted into mechanical vibration for precise welding, avoiding adhesion of the molten surface.

Benefits of technology

Precise welding of the thin side of the tray was achieved, avoiding adhesion of the molten surface and improving welding quality and efficiency.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of welding equipment, in particular to a plastic tray welding machine. In order to solve the problem that a heating surface is too large to easily cause adhesion of a fusion surface of a tray part, the utility model provides the following technical scheme: the device comprises a feeding frame, the bottom of the feeding frame is communicated with a storage cabinet, the side of the storage cabinet is fixedly connected with a base, the upper surface of the base is provided with a feeding plate, the side of the feeding plate is provided with a welding assembly, and the welding assembly is fixedly connected with the feeding frame. The welding assembly comprises a driving source arranged on the surface of the feeding frame in a penetrating mode. Through cooperation of the feeding plate and the welding assembly, targeted welding can be conducted on the thin side face of the tray, further, the driving source and the clamping block are installed in a matched mode, after the clamping block clamps the top of the tray, one side of the tray is fixed, accurate welding of the thin side face is facilitated, adhesion of a fusion face is avoided, and the welding quality of the thin side face of the tray is improved. And the problem that the heating surface is too large is solved.
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Description

Technical Field

[0001] This utility model relates to the field of welding equipment technology, specifically to a plastic pallet welding machine. Background Technology

[0002] Currently, welded plastic pallets are made by welding two plastic pallets together into a single finished product using a special process. When welding plastic pallets with a welding machine, a clamp is needed to hold the upper pallet, and then the clamp is driven to bring the upper pallet closer to the lower pallet for bonding.

[0003] In the prior art, such as a plastic pallet welding machine with application number 202221454375.1, there is a support seat, a pressure seat, a sealing ring and a heating device; the pressure seat can be close to or far from the support seat; the pressure seat has an adsorption hole on the surface facing the support seat; the adsorption hole is used to form a negative pressure to adsorb the pallet during operation; the sealing ring is wrapped around the adsorption hole and is used to seal the surface of the pallet.

[0004] The combination of the sealing ring and the adsorption hole allows the tray to be sealed and adsorbed, which facilitates the timely removal of the tray after welding to a certain extent. However, after reading the technical solution, it is found that the heating device is installed on the back of the support seat, and its heating surface is very wide, which can meet the large-scale melting of the tray. However, the excessively large heating surface can easily cause the partially molten surface of the tray to stick together, thus failing to meet the welding requirements of the thin side of the tray. Utility Model Content

[0005] In view of the above-mentioned shortcomings of the existing technology, the present invention provides a plastic pallet welding machine, which can effectively solve the problem that the excessively large heating surface in the existing technology can easily cause the partial melting surface of the pallet to stick together, thus failing to meet the welding requirements of the thin side of the pallet.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] This utility model provides a plastic pallet welding machine, including a feeding frame, a storage cabinet connected to the bottom of the feeding frame, a base fixedly connected to the side of the storage cabinet, a feeding plate provided on the upper surface of the base, a welding assembly provided on the side of the feeding plate, the welding assembly including a drive source that penetrates the surface of the feeding frame, a clamping block adapted to be installed at the bottom of the drive source, and a side frame slidably fitted on the side of the clamping block;

[0008] The side frame has a number of side blocks on its upper surface. The side blocks are arranged symmetrically at equal intervals. A straight column is fitted to the bottom of each side block, and a plug-in plate is installed at the bottom of each straight column.

[0009] Furthermore, a guide tooth block is slidably mounted on the surface of the base, and the guide tooth block is aligned with the direction of the feeding plate.

[0010] Furthermore, the plug-in plate is fitted with a positioning inner weldment, which includes an adjusting pin adapted to be installed inside the plug-in plate. The end face of the adjusting pin is fixedly connected to a welding tube, and the end face of the welding tube is fixedly connected to a generator.

[0011] Furthermore, a tray seat is fixedly connected to the side of the base, and a guide rail is provided on the upper surface of the tray seat. The guide rail extends to the lower surface of the plug-in plate, and the guide rail slides in cooperation with the plug-in plate.

[0012] Furthermore, there are multiple adjusting pins and welding tubes, and the multiple adjusting pins and welding tubes are arranged at equal intervals.

[0013] Furthermore, a protective plate is plugged into the end face of the generator, and the protective plate is installed on the inner side of the plug-in plate.

[0014] Furthermore, a heat-insulating spring plate is provided on the lower inner side of the plug plate, and the upper surface of the heat-insulating spring plate is correspondingly provided with the welded pipe.

[0015] Furthermore, the structure of the heat insulation plate is symmetrical and interlocking, and iron sheets are provided at the joints of the heat insulation plate.

[0016] Furthermore, the cross-sectional shape of the placement side block is a semi-circular slide rail, and the top of the placement side block is provided with an arc surface. Beneficial effects

[0017] The technical solution provided by this utility model has the following advantages compared with the known prior art:

[0018] 1. By connecting the feeding frame and the storage cabinet, the pallet can be taken out of the storage cabinet and placed in the feeding frame. Furthermore, through the cooperation of the feeding plate and the welding components, the thin side of the pallet can be welded in a targeted manner. The further adaptation and installation of the drive source and the clamping block allows the clamping block to hold the top of the pallet and fix one side of the pallet, which facilitates precise welding on the thin side, avoids adhesion of the molten surface, and helps to improve the problem of excessive heating surface.

[0019] Second, by setting adjustment pins on the inner side of the plug plate, the welding tube can be disassembled in a timely manner, which facilitates the replacement and maintenance of the welding tube. The generator is fixed on the end face of the welding tube, so that the current after the generator is powered on is converted into high-frequency electrical energy. Then, through the transducer built into the welding tube, the high-frequency electrical energy is converted into mechanical vibration of the same frequency, which is finally transmitted to the thin side of the tray, causing multiple trays to rub against each other. The heat generated can melt the plastic tray and realize the welding function. Attached Figure Description

[0020] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0021] Figure 1 This is a schematic diagram of the present invention;

[0022] Figure 2 This is a schematic diagram of the structure of the parts that enable the tray to be placed stably in this utility model;

[0023] Figure 3 This is a schematic diagram of the structure of the parts that achieve the bonding and welding effect in this utility model;

[0024] Figure 4 This utility model Figure 3 A magnified view of a section at point A in the middle;

[0025] Figure 5 This is a schematic diagram of the structure of the parts that achieve the heat insulation effect in this utility model.

[0026] Reference numerals: 1. Feed frame; 2. Storage cabinet; 3. Base; 4. Feeding plate; 5. Tray seat; 6. Guide rail; 7. Welding assembly; 71. Drive source; 72. Clamping block; 73. Side frame; 74. Placement side block; 75. Plug-in plate; 76. Straight column; 77. Guide tooth block; 78. Positioning inner weldment; 781. Adjusting pin; 782. Welded pipe; 783. Generator; 784. Protective plate; 785. Heat insulation spring plate. Detailed Implementation

[0027] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the scope of protection of this utility model.

[0028] The present invention will be further described below with reference to the embodiments.

[0029] See attached document Figure 1-5 A plastic pallet welding machine includes a feeding frame 1, a storage cabinet 2 connected to the bottom of the feeding frame 1, a base 3 fixedly connected to the side of the storage cabinet 2, a feeding plate 4 provided on the upper surface of the base 3, a welding assembly 7 provided on the side of the feeding plate 4, the welding assembly 7 including a drive source 71 that penetrates the surface of the feeding frame 1, a clamping block 72 adapted to be installed at the bottom of the drive source 71, and a side frame 73 slidably fitted on the side of the clamping block 72.

[0030] The side frame 73 has a side block 74 on its upper surface. There are several side blocks 74, which are arranged symmetrically at equal intervals. A straight column 76 is fitted to the bottom of the side block 74, and a plug plate 75 is installed at the bottom of the straight column 76.

[0031] The connection between the feeding frame 1 and the storage cabinet 2 allows the pallet to be taken out of the storage cabinet 2 and placed in the feeding frame 1. The cooperation between the feeding plate 4 and the welding assembly 7 allows for targeted welding of the thin side of the pallet. Furthermore, the matching installation of the drive source 71 and the clamping block 72 allows the clamping block 72 to clamp the top of the pallet and fix one side of the pallet, facilitating precise welding of the thin side, avoiding adhesion of the molten surface, and helping to improve the problem of excessive heating surface.

[0032] By setting a side block 74 on the upper surface of the side frame 73, the two sides of the tray can be stably placed on the surface of the side block 74, achieving a stable symmetrical balance effect. At the same time, a straight column 76 is installed at the bottom of the side block 74, and a plug-in plate 75 is installed at the bottom of the straight column 76, so that the side block 74 is placed in a predetermined position, while also ensuring the welding quality of the thin side near the bottom, and preventing welding deviation due to shaking.

[0033] A guide tooth block 77 is slidably mounted on the surface of the base 3, and the guide tooth block 77 is aligned with the direction of the feeding plate 4.

[0034] By sliding the guide tooth block 77 on the surface of the base 3, the feeding plate 4 can be moved along the surface of the base 3, which facilitates the continuous transportation of the pallet and subsequent welding.

[0035] The plug plate 75 is fitted with a positioning inner weldment 78, which includes an adjusting pin 781 adapted to be installed inside the plug plate 75. The end face of the adjusting pin 781 is fixedly connected to a welding tube 782, and the end face of the welding tube 782 is fixedly connected to a generator 783.

[0036] By setting an adjustment pin 781 on the inner side of the plug plate 75, the welding tube 782 can be disassembled in a timely manner, which facilitates the replacement and maintenance of the welding tube 782. The generator 783 is fixed on the end face of the welding tube 782, so that the current after the generator 783 is powered on is converted into high-frequency electrical energy. Then, through the transducer built into the welding tube 782, the high-frequency electrical energy is converted into mechanical vibration of the same frequency, which is finally transmitted to the thin side of the tray to cause multiple trays to rub against each other. The heat generated can melt the plastic tray and realize the welding function.

[0037] A tray seat 5 is fixedly connected to the side of the base 3. A guide rail 6 is provided on the upper surface of the tray seat 5. The guide rail 6 extends to the lower surface of the plug-in plate 75 and slides with the plug-in plate 75.

[0038] By cooperating with the tray holder 5 and the guide rail 6, the tray to be welded can be temporarily stored in the tray holder 5, and the plug plate 75 can slide with the guide rail 6, giving the plug plate 75 displacement capability, which facilitates the rapid transportation and welding of the tray.

[0039] There are multiple adjusting pins 781 and welding tubes 782. The multiple adjusting pins 781 and welding tubes 782 are arranged at equal intervals. A protective plate 784 is inserted and installed on the end face of the generator 783. The protective plate 784 is installed on the inner side of the plug-in plate 75.

[0040] By equidistantly arranging several adjusting pins 781, the welding tube 782 can be adjusted at any time. According to the specific welding requirements of the thin side of the pallet, the welding tube 782 can be flexibly adjusted to meet the different welding needs of the pallet.

[0041] A heat insulation plate 785 is provided on the lower inner side of the plug plate 75. The upper surface of the heat insulation plate 785 is correspondingly provided with the welded pipe 782. The structure of the heat insulation plate 785 is symmetrical and interlocking, and an iron sheet is provided at the joint of the heat insulation plate 785.

[0042] By setting a heat insulation plate 785 on the inner side of the plug plate 75, the heat that escapes from the bottom of the welded pipe 782 during welding is promptly isolated by the heat insulation plate 785, avoiding excessive welding of the thin side of the pallet and ensuring high welding quality of the thin side of the pallet.

[0043] The cross-sectional shape of the side block 74 is a semi-circular slide rail, and the top of the side block 74 is provided with an arc surface.

[0044] By keeping the cross-section of the side block 74 semi-circular and setting the top as an arc surface, the outer side of the pallet can be symmetrically stabilized, which indirectly improves the welding effect of the pallet.

[0045] Working principle: First, a portion of the pallets are taken out from the storage cabinet 2 and placed in the feeding frame 1. At the same time, another portion of the pallets are placed on top of the feeding plate 4 and transported through the feeding plate 4. Then, the pallets are moved to the position of the welding assembly 7.

[0046] Then, power is connected to the generator 783, so that the current transmitted in the generator 783 is converted into high-frequency electrical energy. The electrical energy is then transmitted to the welding tube 782. The high-frequency electrical energy is converted into vibration of the same frequency under the action of the transducer built into the welding tube 782, in preparation for ultrasonic vibration welding.

[0047] Furthermore, side blocks 74 are placed on the outer sides of several pallets, and clamping blocks 72 are fastened together. The bottom of the side blocks 74 are placed on the upper surface of the welding pipe 782. The high-frequency vibration provided by the welding pipe 782 is transmitted to the bottom of the pallet, causing friction and heat generation of the pallet, thereby enabling the pallet to achieve a molten welding effect.

[0048] The above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions will not cause the essence of the corresponding technical solutions to deviate from the protection scope of the technical solutions of the embodiments of this utility model.

Claims

1. A plastic pallet welding machine, comprising a feeding frame (1), characterized in that: The bottom of the feeding frame (1) is connected to the storage cabinet (2), and the side of the storage cabinet (2) is fixedly connected to the base (3). The upper surface of the base (3) is provided with a feeding plate (4), and the side of the feeding plate (4) is provided with a welding assembly (7). The welding assembly (7) includes a drive source (71) that penetrates the surface of the feeding frame (1). The bottom of the drive source (71) is fitted with a clamping block (72), and the side of the clamping block (72) is slidably fitted with a side frame (73). Among them, the upper surface of the side frame (73) is provided with a side block (74), and there are several side blocks (74). The side blocks (74) are distributed in an equidistant and symmetrical arrangement. A straight column (76) is adapted to be installed at the bottom of the side block (74), and a plug plate (75) is installed at the bottom of the straight column (76).

2. The plastic pallet welding machine according to claim 1, characterized in that, The base (3) is slidably mounted with a guide tooth block (77), and the guide tooth block (77) is aligned with the direction of the feeding plate (4).

3. A plastic pallet welding machine according to claim 1, characterized in that, The plug plate (75) is fitted with a positioning inner weldment (78), which includes an adjusting pin (781) adapted to be installed inside the plug plate (75). The end face of the adjusting pin (781) is fixedly connected to a welding tube (782), and the end face of the welding tube (782) is fixedly connected to a generator (783).

4. A plastic pallet welding machine according to claim 1, characterized in that, The base (3) is fixedly connected to a tray seat (5) on its side. A guide rail (6) is provided on the upper surface of the tray seat (5). The guide rail (6) extends to the lower surface of the plug-in plate (75) and slides with the plug-in plate (75).

5. A plastic pallet welding machine according to claim 3, characterized in that, There are multiple adjusting pins (781) and welding pipes (782), and the multiple adjusting pins (781) and welding pipes (782) are arranged at equal intervals.

6. A plastic pallet welding machine according to claim 3, characterized in that, The generator (783) has a protective plate (784) plugged into its end face, and the protective plate (784) is installed on the inside of the plug-in plate (75).

7. A plastic pallet welding machine according to claim 6, characterized in that, A heat insulation plate (785) is provided on the lower inner side of the plug plate (75), and the upper surface of the heat insulation plate (785) is correspondingly provided with the welded pipe (782).

8. A plastic pallet welding machine according to claim 7, characterized in that, The structure of the heat insulation plate (785) is symmetrical and interlocking, and iron sheets are provided at the joints of the heat insulation plate (785).

9. A plastic pallet welding machine according to claim 1, characterized in that, The cross-sectional shape of the placement side block (74) is a semi-circular slide rail, and the top of the placement side block (74) is provided with an arc surface.