Automatic hot melt welding machine for furniture parts made of HDPE

Abstract

The utility model discloses a kind of automatic hot melt welding machines of HDPE material furniture components, including rack, hot melt device is equipped on rack, hot melt device includes more than one group of liftable hot melt assembly, and hot melt assembly includes relatively arranged male hot melt head and female hot melt head;Tenon piece loading device is equipped on the rack at the side of male hot melt head;Tenon piece loading device is slidably equipped on the rack at the side of female hot melt head.The utility model can significantly reduce the dependence on traditional screw and other fasteners in furniture assembly process, reduce labor cost and time cost, and ensure the firmness and stability of furniture component connection, improve the overall quality and user experience of product.

Description

Technical Field

[0001] This utility model relates to the field of furniture manufacturing technology, and in particular to an automatic hot melt welding machine for HDPE furniture parts. Background Technology

[0002] In modern furniture manufacturing, improving production efficiency and reducing costs have always been core objectives pursued by enterprises. However, traditional furniture assembly methods, especially those involving the connection of multiple components, often rely on manual assembly using fasteners such as screws and bolts. This traditional connection method not only consumes a lot of labor costs but also requires a significant investment of time for precise alignment and tightening, severely restricting the improvement of production efficiency and increasing overall manufacturing costs.

[0003] For example, Chinese patent number 202322078643.5 discloses a rocking chair assembly with HDPE chair legs. This rocking chair assembly includes multiple components, such as a front support leg, reinforcing rod, HDPE chair legs, frame strips, support plate, rear support leg, and armrests. In traditional assembly methods, these components often need to be fixed one by one using screws or other fasteners. This process is not only cumbersome but also requires a high level of skill from workers; slight carelessness can lead to insecure connections or component damage, thus affecting the overall product quality and production efficiency. Furthermore, with rising labor costs and intensified market competition, the high labor and time costs associated with traditional connection methods are becoming increasingly prominent, becoming a bottleneck restricting the further development of the furniture manufacturing industry.

[0004] To address the aforementioned issues, this application aims to provide a novel automatic hot-melt welding machine for HDPE furniture components. This machine significantly reduces reliance on traditional fasteners such as screws during furniture assembly, thereby lowering labor and time costs. It also ensures the strength and stability of furniture component connections, improving overall product quality and user experience. Furthermore, furniture manufacturers can effectively reduce production costs, enhance market competitiveness, and achieve sustainable development while maintaining or improving product quality. Summary of the Invention

[0005] The present invention aims to solve the technical problem of high labor and time costs caused by relying on traditional fasteners such as screws for manual assembly in the existing furniture assembly technology.

[0006] To solve the above-mentioned technical problems, this utility model provides an automatic hot melt welding machine for HDPE furniture parts, including a frame, a hot melt device on the frame, the hot melt device including one or more liftable hot melt components, and the hot melt components including male hot melt heads and female hot melt heads arranged opposite each other; A tenon loading device is provided on the frame on the side of the male hot melt head; a tenon loading device is slidably provided on the frame on the side of the female hot melt head.

[0007] Preferably, the hot melt assembly includes a mounting base, on which an adjustment groove for adjusting the longitudinal position of the hot melt assembly is longitudinally formed; The hot melt assembly also includes a heating head, an insulating block located below the heating head, and an adjusting block located below the insulating block. The male and female hot melt heads are respectively located on opposite sides of the heating head. A T-shaped block is provided in the adjusting groove, and a bolt is provided on the adjusting block. The bolt is screwed into the T-shaped block.

[0008] Preferably, the hot-melt device further includes a first mounting frame inside the frame, one or more first slide rails are vertically provided on the first mounting frame, a first slider is provided on the first slide rail, a lifting plate is provided on the first slider, a top rod that extends out of the frame is fixed on the lifting plate, the top end of the top rod is connected to the mounting base, and a first lifting drive device is provided between the first mounting frame and the lifting plate.

[0009] Preferably, the mortise loading device includes a mortise clamping assembly, a mortise lifting seat for driving the mortise clamping assembly to rise and fall, and a first sliding assembly for moving the mortise clamping assembly closer to or away from the hot melt assembly. The first sliding assembly includes a second slide rail mounted on the frame, a second slider mounted on the second slide rail, a first support plate mounted on the second slider, a mortise lifting seat fixedly mounted on the first support plate, and a first push-pull drive device mounted between the frame and the first support plate. The mortise lifting seat moves away from or near the hot melt assembly via the second slide rail, the second slider, and the first push-pull drive device.

[0010] Preferably, the mortise clamping assembly includes a main support plate, a second lifting drive device is provided between the mortise lifting seat and the main support plate, an upper support plate is slidably provided on the main support plate, a lower support plate is slidably provided below the main support plate, and a first push rod device is slidably provided on the upper support plate. A first guide groove is provided on the main support plate, and a first guide slider corresponding to the first guide groove is provided on the upper support plate. The main support plate and the upper support plate are slidably connected through the first guide groove and the first guide slider. A second guide groove is provided below the main support plate, and a second guide slider corresponding to the second guide groove is provided on the lower support plate. The main support plate and the lower support plate are slidably connected through the second guide groove and the second guide slider. A first sliding groove hole is provided on the upper support plate, and a first positioning hole is provided on the first push rod device, as well as a bolt passing through the first positioning hole and the first sliding groove hole.

[0011] Preferably, the tenon loading device includes a tenon positioning component and a second sliding component that drives the tenon positioning component to move; the second sliding component includes several third slide rails arranged parallel to each other on the frame, a third slider on the third slide rail, a second support plate on the third slider, and a second push-pull drive device between the frame and the second support plate, so that the tenon positioning component moves away from or near the hot melt component through the third slide rail, the third slider and the second push-pull drive device.

[0012] Preferably, the tenon positioning assembly includes several positioning seats slidably disposed on the second support plate and positioning stops disposed at both ends of the second support plate. The positioning seat includes a positioning plate, at least one positioning platform is fixedly disposed on the positioning plate, and a positioning groove is recessed on the positioning platform. A fourth slide rail is provided on the second support plate, and a fourth slider corresponding to the fourth slide rail is fixedly provided below the positioning plate. The positioning seat is slidably connected to the second support plate through the fourth slide rail and the fourth slider.

[0013] Preferably, rod connectors are provided at both ends of the second support plate, and the positioning stop includes a positioning support rod passing through the rod connector and a positioning stop plate that is fixedly connected to the positioning support rod; Several positioning seats are fixedly connected to the lower part of an adjusting guide rod. A third guide groove is provided on the second support plate. A third guide slider corresponding to the third guide groove is provided below the adjusting guide rod. Several positioning seats slide synchronously relative to the second support plate through the adjusting guide rod, the third guide slider and the third guide groove.

[0014] Preferably, it also includes a fastening assembly, which includes a support gantry and a second push rod device slidably connected to the support gantry; The supporting gantry includes a frame plate and gantry support legs fixedly connected to both ends of the frame plate. A second sliding groove is provided on the frame plate, a second positioning hole is provided on the second push rod device, and bolts pass through the second positioning hole and the second sliding groove.

[0015] Preferably, a fifth slide rail is provided at the bottom of the gantry support foot, a fifth slider corresponding to the fifth slide rail is provided at the bottom of the second support plate, an adjusting support rod is provided between the two gantry support feet, and a third push-pull drive device is provided between the adjusting support rod and the frame.

[0016] The beneficial effects of this utility model are as follows: This utility model, through the relative arrangement of the male and female hot melt heads, and the precise loading and positioning of the mortise and tenon parts by the mortise loading device and the tenon loading device respectively, can ensure accurate docking of HDPE furniture parts during hot melt welding, improve welding accuracy, reduce welding errors, and guarantee welding quality. The entire equipment automates the hot melt welding process, from component loading and positioning to hot melt welding, reducing manual operation steps, improving production efficiency, reducing labor costs, and avoiding the instability factors that may be caused by manual operation. This automatic hot melt welding machine is suitable for welding HDPE furniture parts of different types, sizes and shapes. By flexibly adjusting the position and parameters of each device, it can meet diverse production needs and provide furniture manufacturers with a wider range of processing options. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of an embodiment of the present utility model. Figure 1 ; Figure 2 This is a schematic diagram of an embodiment of the present utility model. Figure 2 ; Figure 3 This is a partial illustration of an embodiment of the present utility model. Figure 1 ; Figure 4 This is a partial illustration of an embodiment of the present utility model. Figure 2 ; Figure 5 This is a schematic diagram of the hot-melt device in an embodiment of the present invention; Figure 6 This is a schematic diagram of the mortise loading device in an embodiment of this utility model; Figure 7 This is a schematic diagram of the tenon loading device in an embodiment of this utility model; Figure 8 for Figure 4 Enlarged diagram of point A in the middle. Detailed Implementation

[0018] The present invention will now be described in detail with reference to the accompanying drawings, clearly illustrating the technical solutions in the embodiments of the present invention. The described embodiments are obviously only a part of the embodiments of the present invention, and not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative effort are within the scope of protection of the present invention.

[0019] like Figures 1 to 8 As shown, this utility model provides an automatic hot melt welding machine for HDPE furniture parts, including a frame 1, on which a hot melt device 2 is provided. The hot melt device 2 includes one or more liftable hot melt components 21, and the hot melt components 21 include a male hot melt head 211 and a female hot melt head 212 arranged opposite to each other.

[0020] A tenon loading device 3 is provided on the frame 1 on the side of the male hot melt head 211; a tenon loading device 5 is slidably provided on the frame 1 on the side of the female hot melt head 212. In some embodiments (not shown in the figure), the tenon loading device on the male hot melt head side is also slidably provided on the frame.

[0021] Specifically, in the welding process of furniture components, the protruding part is called a tenon or mortise, and the recessed part is called a mortise or tenon. The frame 1, as the basic support structure of the entire automatic hot melt welding machine, provides a platform for the installation and fixation of all other components. It needs to have sufficient strength and stability to withstand the forces and vibrations generated by each device during operation, ensuring the smooth progress of the entire welding process. It is usually made of high-strength metal materials, and through reasonable structural design and processing technology, its structure is guaranteed to be robust and reliable.

[0022] like Figures 1 to 5 As shown, in this embodiment, the hot melt assembly 21 includes a mounting base 213, and an adjustment groove 214 for adjusting the longitudinal position of the hot melt assembly 21 is provided on the mounting base 213.

[0023] The hot melt assembly 21 also includes a heating head 215, an insulating block 216 located below the heating head 215, and an adjusting block 217 located below the insulating block 216. The male hot melt head 211 and the female hot melt head 212 are respectively located on opposite sides of the heating head 215. A T-shaped block 2141 is provided in the adjusting groove 214, and a bolt is provided on the adjusting block 217. The bolt is screwed into the T-shaped block 2141.

[0024] Specifically, the mounting base 213 is the basic support component of the hot melt assembly 21, and the longitudinally opened adjustment groove 214 is used to adjust the longitudinal position of the hot melt assembly 21. Through the adjustment groove 214, the longitudinal positions of the male hot melt head 211 and the female hot melt head 212 can be precisely adjusted according to the welding requirements of furniture parts of different specifications made of HDPE material, ensuring that the contact position between the hot melt head and the part is accurate.

[0025] The heating head 215 is the core heating component of the hot melt assembly 21. It converts electrical energy into heat energy to provide a high-temperature environment for the male hot melt head 211 and the female hot melt head 212, enabling the HDPE furniture parts to melt rapidly upon contact with the hot melt heads, thus achieving the welding function. The heating head 215 is typically made of a high-resistance alloy material, which features high heating efficiency and good thermal stability.

[0026] The insulating block 216 is located below the heating head 215. Its main function is to isolate the heat generated by the heating head 215, preventing the heat from being transferred downwards to other components and avoiding damage to other parts or affecting their performance due to heat conduction. At the same time, the insulating block 216 also serves as electrical insulation, preventing short circuits between the heating head 215 and other conductive parts, and ensuring the safe operation of the equipment.

[0027] Furthermore, the adjusting block 217 is located below the insulating block 216, forming an integral structure together with the heating head 215 and the insulating block 216. The adjusting block 217 is equipped with bolts, which are screwed into the T-shaped block 2141, which is positioned within the adjusting groove 214. This connection method allows for longitudinal position adjustment of the heat fusion assembly 21 on the mounting base 213. When the longitudinal position of the heat fusion assembly 21 needs to be adjusted, simply loosen the bolts, move the adjusting block 217 to allow the T-shaped block 2141 to slide into the adjusting groove 214 to the appropriate position, and then tighten the bolts to fix the position of the heat fusion assembly 21.

[0028] Furthermore, the male and female hot melt heads 211 and 212 are respectively located on opposite sides of the heating head 215, and are components that directly contact and melt the HDPE furniture parts. The shape and size of the male and female hot melt heads 211 and 212 are designed according to the shape and size of the welding interface of the furniture parts to ensure that they can fit tightly with the parts during the hot melt welding process and achieve good welding results.

[0029] like Figures 1 to 4 ,and Figure 6 As shown, in this embodiment, the hot melt device 2 further includes a first mounting frame 101 disposed inside the frame 1. One or more first slide rails 102 are vertically disposed on the first mounting frame 101. A first slider 103 is disposed on the first slide rail 102. A lifting plate 104 is disposed on the first slider 103. A top rod 105 that protrudes from the frame 1 is fixedly disposed on the lifting plate 104. The top end of the top rod 105 is connected to the mounting base 213. A first lifting drive device 106 is disposed between the first mounting frame 101 and the lifting plate 104.

[0030] Specifically, the first mounting bracket 101 is located inside the frame 1, providing support and guidance for the lifting and lowering movement of the hot melt assembly 21. It has one or more first slide rails 102 vertically arranged, which provide a precise track for the movement of the first slider 103, ensuring that the first slider 103 can maintain linear movement during lifting and lowering without deviation or swaying.

[0031] The first slider 103 is mounted on the first slide rail 102 and fixedly connected to the lifting plate 104. The sliding of the first slider 103 on the first slide rail 102 drives the lifting plate 104 to move up and down, thereby realizing the lifting function of the hot melt assembly 21. The lifting plate 104 is a component connecting the first slider 103 and the push rod 105. It transmits the lifting motion of the first slider 103 to the push rod 105, thereby driving the hot melt assembly 21 to rise and fall. The lifting plate 104 needs to have sufficient strength and rigidity to withstand the weight of the hot melt assembly 21 and the forces generated during the lifting process. The push rod 105 extends out of the frame 1, and its top end is connected to the mounting base 213. The push rod 105 accurately transmits the movement of the lifting plate 104 to the hot melt assembly 21, enabling the hot melt assembly 21 to perform lifting operations according to the set requirements. The push rod 105 is usually made of high-strength metal material to ensure that it can withstand large forces without deformation.

[0032] In this embodiment, the first lifting drive device 106 is disposed between the first mounting bracket 101 and the lifting plate 104 to provide power for the lifting of the hot melt assembly 21. It can be an electric push rod, a hydraulic cylinder or a pneumatic cylinder, etc. By controlling the extension and retraction movement of the first lifting drive device 106, the precise lifting control of the hot melt assembly 21 can be achieved to meet the requirements of different welding heights.

[0033] like Figures 1 to 4 , Figure 6 As shown, in this embodiment, the mortise loading device 3 includes a mortise clamping assembly 31, a mortise lifting seat 32 for driving the mortise clamping assembly 31 to rise and fall, and a first sliding assembly 33 for moving the mortise clamping assembly 31 closer to or away from the hot melt assembly 21.

[0034] The first sliding assembly 33 includes a second slide rail 331 mounted on the frame 1, a second slider 332 mounted on the second slide rail 331, a first support plate 333 mounted on the second slider 332, a mortise lifting seat 32 fixedly mounted on the first support plate 333, and a first push-pull drive device 334 mounted between the frame 1 and the first support plate 333. The mortise lifting seat 32 moves away from or closer to the hot melt assembly 21 via the second slide rail 331, the second slider 332, and the first push-pull drive device 334.

[0035] Specifically, the second slide rail 331 is mounted on the frame 1, the second slider 332 is mounted on the second slide rail 331, and the first support plate 333 is fixedly mounted on the second slider 332. The cooperation between the second slide rail 331 and the second slider 332 provides a precise track for the sliding of the first support plate 333, ensuring that the first support plate 333 can maintain linear motion during the sliding process.

[0036] In this embodiment, the first push-pull drive device 334 is disposed between the frame 1 and the first support plate 333, providing power for the sliding of the first support plate 333. It can be an electric push rod, a hydraulic cylinder or a pneumatic cylinder, etc. By controlling the extension and retraction movement of the first push-pull drive device 334, the tenon clamping assembly 31 can be moved closer to or further away from the hot melt assembly 21 to meet the requirements of different welding positions.

[0037] like Figure 4 and Figure 6 As shown, in this embodiment, the mortise clamping assembly 31 includes a main support plate 311, a second lifting drive device is provided between the mortise lifting seat 32 and the main support plate 311, an upper support plate 312 is slidably provided on the main support plate 311, a lower support plate 313 is slidably provided below the main support plate 311, and a first push rod device 3132 is slidably provided on the upper support plate 312.

[0038] A first guide groove 3111 is provided on the main support plate 311, and a first guide slider 3121 corresponding to the first guide groove 3111 is provided on the upper support plate 312. The main support plate 311 and the upper support plate 312 are slidably connected through the first guide groove 3111 and the first guide slider 3121. A second guide groove 3112 is provided below the main support plate 311, and a second guide slider 3131 corresponding to the second guide groove 3112 is provided on the lower support plate 313. The main support plate 311 and the lower support plate 313 are slidably connected through the second guide groove 3112 and the second guide slider 3131. A first sliding groove hole 3122 is provided on the upper support plate 312, and a first positioning hole 3133 is provided on the first push rod device 3132, as well as bolts passing through the first positioning hole 3133 and the first sliding groove hole 3122.

[0039] Specifically, the mortise lifting seat 32 is fixedly mounted on the first support plate 333, and the mortise clamping assembly 31 is driven to rise and fall by the second lifting drive device. The second lifting drive device can be an electric push rod, a hydraulic cylinder, or a pneumatic cylinder, etc. It can precisely control the lifting height of the mortise clamping assembly 31 according to the requirements of the welding process, so that the mortise can accurately cooperate with the hot melt assembly 21 to achieve hot melt welding.

[0040] In this embodiment, the main support plate 311 is the basic support component of the mortise clamping assembly 31, providing support and guidance for the sliding of the upper support plate 312 and the lower support plate 313. It needs to have sufficient strength and stability to ensure that it does not deform during the clamping of the mortise.

[0041] The upper support plate 312 and the lower support plate 313 are slidably mounted on the main support plate 311. Through the relative movement of the upper and lower support plates 313, mortise parts of different sizes and shapes can be clamped. The sliding connection between the upper support plate 312 and the lower support plate 313 is achieved through the first guide groove 3111 and the first guide slider 3121, the second guide groove 3112 and the second guide slider 3131. This connection method ensures the stability and accuracy of the upper support plate 312 and the lower support plate 313 during the sliding process.

[0042] Furthermore, the first push rod device 3132 is slidably mounted on the upper support plate 312 and is fixed by bolts passing through the first positioning hole 3133 and the first sliding groove hole 3122. The first push rod device 3132 can further adjust the clamping force and position of the upper support plate 312 on the mortise, ensuring that the mortise is firmly and reliably clamped and will not move or shake during the clamping process.

[0043] like Figures 1 to 4 ,and Figure 7 and Figure 8 As shown, in this embodiment, the tenon loading device 5 includes a tenon positioning component 51 and a second sliding component 52 that drives the tenon positioning component 51 to move; the second sliding component 52 includes a plurality of third slide rails 521 arranged parallel to the frame 1, a third slider 522 is provided on the third slide rails 521, a second support plate 515 is provided on the third slider 522, and a second push-pull driving device 523 is provided between the frame 1 and the second support plate 515. The tenon positioning component 51 moves away from or close to the hot melt component 21 through the third slide rails 521, the third slider 522 and the second push-pull driving device 523.

[0044] Specifically, the third slide rail 521 is arranged parallel to the frame 1, the third slider 522 is mounted on the third slide rail 521, and the second support plate 515 is fixedly mounted on the third slider 522. The cooperation between the third slide rail 521 and the third slider 522 provides a precise track for the sliding of the second support plate 515, ensuring that the second support plate 515 can maintain linear motion during the sliding process.

[0045] The second push-pull drive device 523 is located between the frame 1 and the second support plate 515, providing power for the sliding of the second support plate 515. It can be an electric push rod, a hydraulic cylinder, or a pneumatic cylinder, etc. By controlling the extension and retraction of the second push-pull drive device 523, the tenon positioning assembly 51 can be moved closer to or further away from the hot melt assembly 21 to meet the requirements of different welding positions.

[0046] like Figure 4 , Figure 7 and Figure 8As shown, in this embodiment, the tenon positioning assembly 51 includes a plurality of positioning seats 511 slidably disposed on the second support plate 515 and positioning stops 516 disposed at both ends of the second support plate 515. The positioning seat 511 includes a positioning plate 512, and at least one positioning platform 513 is fixedly disposed on the positioning plate 512. A positioning groove 5131 is recessed on the positioning platform 513.

[0047] A fourth slide rail 5132 is provided on the second support plate 515, and a fourth slider 5133 corresponding to the fourth slide rail 5132 is fixedly provided below the positioning plate 512. The positioning seat 511 is slidably connected to the second support plate 515 through the fourth slide rail 5132 and the fourth slider 5133.

[0048] Specifically, the positioning plate 512 is the basic component of the positioning seat 511, providing an installation platform for the positioning table 513. The positioning table 513 is recessed with a positioning groove 5131. The shape and size of the positioning groove 5131 are designed according to the shape and size of the tenon, and are used to accurately place and position the tenon to ensure that the tenon is accurately positioned during the welding process.

[0049] The adjusting guide rod 517 is provided with a fourth guide groove 5172, and the positioning plate 512 is provided with a fourth guide slider 5121 corresponding to the fourth guide groove 5172. The positioning plate 512 slides relative to the fourth guide groove 5172 and the fourth guide slider 5121, which further increases the flexibility of the positioning seat 511 adjustment and enables more precise positioning of the tenon.

[0050] like Figure 7 and Figure 8 As shown, in this embodiment, rod connectors are provided at both ends of the second support plate 515, and the positioning stop 516 includes a positioning support rod 5161 passing through the rod connector and a positioning stop 5162 fixedly connected to the positioning support rod 5161.

[0051] A plurality of positioning seats 511 are fixedly connected to an adjusting guide rod 517 below them. A third guide groove 5151 is provided on the second support plate 515. A third guide slider 5171 corresponding to the third guide groove 5151 is provided below the adjusting guide rod 517. The plurality of positioning seats 511 slide synchronously relative to the second support plate 515 through the adjusting guide rod 517, the third guide slider 5171 and the third guide groove 5151.

[0052] Specifically, the positioning support rod 5161 passes through the rod connector and serves to support and position the positioning baffle 5162. The positioning baffle 5162 is fixedly connected to the positioning support rod 5161 and is used to prevent the tenon from moving during the sliding process, ensuring that the tenon is fixed in position on the positioning seat 511.

[0053] In this embodiment, an adjusting guide rod 517 is fixedly connected to the lower part of several positioning seats 511, and a third guide groove 5151 is provided on the second support plate 515. A third guide slider 5171 corresponding to the third guide groove 5151 is provided below the adjusting guide rod 517. Through the cooperation of the adjusting guide rod 517, the third guide slider 5171 and the third guide groove 5151, several positioning seats 511 can slide synchronously relative to the second support plate 515, which facilitates the unified adjustment of the positions of multiple positioning seats 511 and improves production efficiency.

[0054] like Figure 8 As shown, in this embodiment, a fourth guide groove 5172 is provided on the adjusting guide rod 517, and a fourth guide slider 5121 corresponding to the fourth guide groove 5172 is provided below the positioning plate 512. The positioning plate 512 slides relative to the fourth guide groove 5172 and the fourth guide slider 5121. Corresponding fixing holes and bolts passing through the fixing holes are provided on the third guide slider 5171, the adjusting guide rod 517, the third slider 522 and the positioning plate 512 to form a fixed connection.

[0055] Specifically, a fourth guide groove 5172 is provided on the adjusting guide rod 517, and a fourth guide slider 5121 corresponding to the fourth guide groove 5172 is provided below the positioning plate 512. The positioning plate 512 slides relative to the fourth guide groove 5172 and the fourth guide slider 5121, which further increases the flexibility of the positioning seat 511 adjustment and enables more precise positioning of the tenon.

[0056] The third guide slider 5171, the adjusting guide rod 517, the third slider 522 and the positioning plate 512 are provided with corresponding fixing holes and bolts. Through the tightening action of the bolts, the various components are fixedly connected together to ensure that the positioning seat 511 can remain stable after being adjusted to the appropriate position and will not move.

[0057] like Figures 1 to 4 ,and Figure 7 As shown, in this embodiment, a fastening assembly 6 is also included, which includes a support gantry 61 and a second push rod device 621 slidably connected to the support gantry 61.

[0058] The supporting gantry 61 includes a frame plate 611 and gantry support legs 613 fixedly connected to both ends of the frame plate 611. A second sliding groove hole 612 is provided on the frame plate 611. A second positioning hole 622 is provided on the second push rod device 621, and bolts pass through the second positioning hole 622 and the second sliding groove hole 612.

[0059] Specifically, the support plate 611 is the main load-bearing component supporting the gantry 61, providing an installation platform for the second push rod device 621. The support plate 611 has a second sliding groove 612 for adjusting the position of the second push rod device 621. The gantry support feet 613 are fixedly connected to both ends of the support plate 611, serving to support the support plate 611 and enabling the gantry 61 to be stably installed on the frame 1.

[0060] The second push rod device 621 is slidably connected to the support frame 61 and fixed by bolts passing through the second positioning hole 622 and the second sliding groove hole 612. The second push rod device 621 can be adjusted in position on the support frame 61 to accommodate the fastening requirements of furniture components of different sizes and shapes. During welding, the second push rod device 621 can apply pressure to the furniture components to ensure tight contact between the components and improve welding quality.

[0061] like Figure 3 , Figure 4 and Figure 7 As shown, in this embodiment, a fifth slide rail 614 is provided at the bottom of the gantry support foot 613, a fifth slider 615 corresponding to the fifth slide rail 614 is provided at the bottom of the second support plate 515, an adjusting support rod 616 is provided between the two gantry support feet 613, and a third push-pull drive device 62 is provided between the adjusting support rod 616 and the frame 1.

[0062] Specifically, a fifth slide rail 614 is provided at the bottom of the gantry support leg 613, and a fifth slider 615 corresponding to the fifth slide rail 614 is provided at the bottom of the second support plate 515. The cooperation between the fifth slide rail 614 and the fifth slider 615 allows the support gantry 61 to slide relative to the second support plate 515, increasing the adjustment flexibility of the fastening assembly 6.

[0063] Furthermore, an adjusting support rod 616 is provided between the two gantry support legs 613, and a third push-pull drive device 62 is provided between the adjusting support rod 616 and the frame 1. The third push-pull drive device 62 can be an electric push rod, a hydraulic cylinder, or a pneumatic cylinder, etc. By controlling the extension and retraction of the third push-pull drive device 62, the position of the supporting gantry 61 can be adjusted to further meet the fastening requirements of furniture components in different welding scenarios.

[0064] This utility model has many application scenarios, including but not limited to the following described scenarios: In furniture manufacturing plants, a large number of HDPE furniture components, such as chairs, tables, and cabinets, need to be welded and assembled. This automatic hot melt welding machine can achieve efficient and precise welding, meeting the needs of large-scale mass production and improving production efficiency and product quality stability.

[0065] For some customized furniture products, since the size and shape of the parts may vary, the flexible adjustment function of this equipment can quickly adapt to different design requirements, realize personalized customized production, and provide furniture manufacturing enterprises with more market competitiveness.

[0066] Besides furniture components, this equipment can also be used for welding other HDPE plastic products, such as plastic storage boxes, plastic toys, and plastic pipe fittings. Plastic product processing companies can leverage the automation and precision welding capabilities of this equipment to improve production efficiency and quality, and expand their product range and market reach.

[0067] In research and development and testing institutions, researchers need to experiment and explore different materials and welding processes. This automated hot-melt welding machine can serve as an experimental device for studying the hot-melt welding performance of HDPE materials, optimizing welding parameters, and developing new welding processes, providing technical support for the application of new materials and technologies.

[0068] During the product design process for furniture or other plastic products, designers can use this equipment to create samples, verify the feasibility and rationality of the design scheme, promptly identify and improve design problems, shorten the product development cycle, and improve product quality.

Claims

1. An automatic hot melt welding machine for HDPE furniture parts, comprising a frame, characterized in that: A hot-melting device is provided on the frame. The hot-melting device includes one or more liftable hot-melting components. The hot-melting components include male hot-melting heads and female hot-melting heads arranged opposite each other. A tenon loading device is provided on the frame on the side of the male hot melt head; a tenon loading device is slidably provided on the frame on the side of the female hot melt head.

2. The automatic hot melt welding machine for HDPE furniture parts according to claim 1, characterized in that: The hot melt assembly includes a mounting base, on which an adjustment groove is longitudinally provided for adjusting the longitudinal position of the hot melt assembly; The hot melt assembly also includes a heating head, an insulating block located below the heating head, and an adjusting block located below the insulating block. The male and female hot melt heads are respectively located on opposite sides of the heating head. A T-shaped block is provided in the adjusting groove, and a bolt is provided on the adjusting block. The bolt is screwed into the T-shaped block.

3. The automatic hot melt welding machine for HDPE furniture parts according to claim 2, characterized in that: The hot melt device also includes a first mounting frame located inside the frame. One or more first slide rails are vertically arranged on the first mounting frame. A first slider is provided on the first slide rail. A lifting plate is provided on the first slider. A top rod that extends out of the frame is fixed on the lifting plate. The top end of the top rod is connected to the mounting base. A first lifting drive device is provided between the first mounting frame and the lifting plate.

4. The automatic hot melt welding machine for HDPE furniture parts according to claim 1, characterized in that: The mortise loading device includes a mortise clamping assembly, a mortise lifting seat for driving the mortise clamping assembly to rise and fall, and a first sliding assembly for moving the mortise clamping assembly closer to or away from the hot melt assembly. The first sliding assembly includes a second slide rail mounted on the frame, a second slider mounted on the second slide rail, a first support plate mounted on the second slider, a mortise lifting seat fixedly mounted on the first support plate, and a first push-pull drive device mounted between the frame and the first support plate. The mortise lifting seat moves away from or near the hot melt assembly via the second slide rail, the second slider, and the first push-pull drive device.

5. The automatic hot melt welding machine for HDPE furniture parts according to claim 4, characterized in that: The mortise clamping assembly includes a main support plate, a second lifting drive device is provided between the mortise lifting seat and the main support plate, an upper support plate is slidably provided on the main support plate, a lower support plate is slidably provided below the main support plate, and a first push rod device is slidably provided on the upper support plate. A first guide groove is provided on the main support plate, and a first guide slider corresponding to the first guide groove is provided on the upper support plate. The main support plate and the upper support plate are slidably connected through the first guide groove and the first guide slider. A second guide groove is provided below the main support plate, and a second guide slider corresponding to the second guide groove is provided on the lower support plate. The main support plate and the lower support plate are slidably connected through the second guide groove and the second guide slider. A first sliding groove hole is provided on the upper support plate, and a first positioning hole is provided on the first push rod device, as well as a bolt passing through the first positioning hole and the first sliding groove hole.

6. The automatic hot melt welding machine for HDPE furniture parts according to claim 1, characterized in that: The tenon loading device includes a tenon positioning assembly and a second sliding assembly that drives the tenon positioning assembly to move; The second sliding assembly includes several third slide rails arranged parallel to each other on the frame, a third slider on the third slide rail, a second support plate on the third slider, and a second push-pull drive device between the frame and the second support plate. The tenon positioning assembly moves away from or close to the hot melt assembly through the third slide rail, the third slider, and the second push-pull drive device.

7. The automatic hot melt welding machine for HDPE furniture parts according to claim 6, characterized in that: The tenon positioning assembly includes several positioning seats that are slidably disposed on the second support plate and positioning stops disposed at both ends of the second support plate. The positioning seat includes a positioning plate, at least one positioning platform is fixedly disposed on the positioning plate, and a positioning groove is recessed on the positioning platform. A fourth slide rail is provided on the second support plate, and a fourth slider corresponding to the fourth slide rail is fixedly provided below the positioning plate. The positioning seat is slidably connected to the second support plate through the fourth slide rail and the fourth slider.

8. The automatic hot melt welding machine for HDPE furniture parts according to claim 7, characterized in that: Rod connectors are provided at both ends of the second support plate. The positioning stop includes a positioning support rod passing through the rod connector and a positioning stop plate that is fixedly connected to the positioning support rod. Several positioning seats are fixedly connected to the lower part of an adjusting guide rod. A third guide groove is provided on the second support plate. A third guide slider corresponding to the third guide groove is provided below the adjusting guide rod. Several positioning seats slide synchronously relative to the second support plate through the adjusting guide rod, the third guide slider and the third guide groove.

9. The automatic hot melt welding machine for HDPE furniture parts according to claim 8, characterized in that: It also includes a fastening assembly, which includes a support gantry and a second push rod device slidably connected to the support gantry; The supporting gantry includes a frame plate and gantry support legs fixedly connected to both ends of the frame plate. A second sliding groove is provided on the frame plate, a second positioning hole is provided on the second push rod device, and bolts pass through the second positioning hole and the second sliding groove.

10. The automatic hot melt welding machine for HDPE furniture parts according to claim 9, characterized in that: A fifth slide rail is provided at the bottom of the gantry support foot, and a fifth slider corresponding to the fifth slide rail is provided at the bottom of the second support plate. An adjusting support rod is provided between the two gantry support feet, and a third push-pull drive device is provided between the adjusting support rod and the frame.

Images