A double station hot plate welding machine

Abstract

This utility model discloses a dual-station hot plate welding machine, belonging to the field of dual-station hot plate welding technology. The welding machine includes a mounting cabinet, an upper mounting section, a lower mounting section, and a heating assembly. The equipment adopts a core layout of left and right dual stations and a single heating assembly. When the workpiece is heated at the left station, the robot arm can simultaneously clamp the workpiece at the right station. After the left station is heated, the heating assembly moves laterally to the right station for heating, at which point the left station immediately enters the mold-closing welding process, forming a seamless cycle of clamping, heating, and welding. Compared to traditional single-station equipment that requires waiting for heating to complete before clamping the next set of workpieces, this design minimizes the process interval time, significantly increasing welding output per unit time and adapting to the needs of large-scale production.

Description

Technical Field

[0001] This utility model belongs to the field of dual-station hot plate welding technology, specifically, it relates to a dual-station hot plate welding machine. Background Technology

[0002] A hot plate welding machine is a device that uses the principle of electrothermal melting to weld plastic workpieces by controlling temperature changes and mechanical devices. It is mainly used to compensate for the shortcomings of ultrasonic welding machines in welding large and special plastic workpieces. The plastic components to be fused are placed on a metal plate with a higher melting point than the plastic material. The metal plate is heated at the joint surfaces of the components, causing the joint surfaces to melt. Once the joint surfaces are melted, the hot metal plate is removed, and pressure is applied to the two plastic parts to fuse them together, completing the welding. The machine is generally a frame structure, consisting of three main plates: an upper template, a lower template, and a hot template, along with hot molds and upper and lower plastic cold molds. The operation is mostly pneumatically controlled. The heating plate consists of two parts, upper and lower, heated by electric heating tubes. A cylinder serves as the power source, driving the movement of the hot plate mechanism and the pressure plate mechanism.

[0003] Chinese utility model patent CN110920081A discloses a dual-station hot plate welding machine for power battery casings, including a frame with two sets of battery casing welding stations arranged side by side on the frame. A first mounting plate and a second mounting plate are correspondingly mounted on the frame. A first slide rail is mounted on the first mounting plate, a first sliding bracket is mounted on the first slide rail, a second slide rail is mounted on the side of the first sliding bracket, and the second sliding bracket is mounted on the second slide rail. A hot plate carrier is horizontally mounted on the second sliding bracket. An upper heating plate and a lower heating plate are respectively located on the upper and lower sides of the hot plate carrier. A lifting bracket is mounted above the second mounting plate via a linear bearing. A lower positioning mold is mounted on the second mounting plate, and an upper positioning mold is mounted below the lifting bracket. The hot plate carrier is driven by a first cylinder to enter between the upper and lower positioning molds.

[0004] The dual-station hot plate welding machine also has the following drawbacks: The design of placing workpieces in two sets of molds at the same time can achieve synchronous heating and mold closing to improve efficiency, but this solution requires two additional independent heating plates and two sets of drive components to drive the corresponding heating plates to complete the lateral movement. This design change will directly lead to a significant increase in the initial manufacturing cost of the hot plate welding machine, and the energy consumption, consumables and other usage costs during subsequent equipment operation will increase accordingly. In addition, the existence of two independent systems will also greatly increase the maintenance costs and complexity of daily inspection and parts replacement. Utility Model Content

[0005] The purpose of this section is to outline some aspects of embodiments of the present invention and to briefly describe some preferred embodiments. Simplifications or omissions may be made in this section, as well as in the abstract and title of this application, to avoid obscuring the purpose of these documents; however, such simplifications or omissions should not be construed as limiting the scope of the present invention.

[0006] To address the issues raised in the background section regarding the significantly increased initial manufacturing cost of hot plate welding machines, the corresponding rise in energy consumption and consumable costs during subsequent equipment operation, and the substantial increase in maintenance costs and complexity due to the existence of two independent systems, this invention adopts the following technical solution.

[0007] A dual-station hot plate welding machine includes a mounting cabinet. Liftable upper mounting sections are located on the top of both the left and right sides inside the mounting cabinet, and liftable lower mounting sections are located on the bottom of both sides inside the mounting cabinet. A horizontally movable heating component is installed inside the mounting cabinet. Mounting side plates are located on both sides of the middle cabinet. A first linear slide rail is provided on the opposite surfaces of the two mounting side plates, and the upper and lower mounting sections move along the same first linear slide rail. The heating component moves left and right sequentially to heat the workpieces on the left and right sides of the upper and lower mounting sections.

[0008] Preferably, the outer walls of the upper mounting part and the lower mounting part are provided with sliding blocks, which are slidably connected to the first linear slide rails on both sides. The upper and lower ends of the mounting side plates on both sides are provided with mounting top plates, and the mounting top plates on both sides are equipped with driving components, which drive the upper mounting part and the lower mounting part to move up and down.

[0009] Preferably, the drive assembly includes a first servo motor, a first lead screw, a U-shaped bracket, and a first mounting bracket. The first mounting bracket is disposed on the left and right sides of the mounting top plates on both sides. The first servo motor is disposed at the upper end of the first mounting bracket, and the rotating end of the first servo motor is inserted into the interior of the first mounting bracket. The U-shaped bracket is disposed inside the first mounting bracket, and the two vertical sides of the U-shaped bracket pass through the mounting top plates. The first lead screw is threadedly connected to the horizontal side of the U-shaped bracket, and the protruding end of the U-shaped bracket is detachably connected to the adjacent upper mounting part or lower mounting part. The rotation of the first servo motor drives the first lead screw to rotate, so that the U-shaped bracket drives the upper mounting part and the lower mounting part to rise and fall.

[0010] Preferably, the bottom of the cabinet is detachably connected to the two sides of the second linear slide rail, the bottom of the heating component is detachably connected to the second mounting bracket, the bottom of the second mounting bracket is detachably connected to the sliding plate, the sliding plate is slidably connected to the second linear slide rail, and a lateral movement component is installed on the cabinet, which drives the heating component to move laterally along the length of the second linear slide rail.

[0011] Preferably, the lateral movement component includes a support frame, a second lead screw, a second servo motor, and a connecting block. The support frames are arranged opposite each other at the bottom of the inner side of the middle cabinet. The second lead screw is rotatably connected between the two support frames. The second servo motor is located at the bottom of the middle cabinet. The rotating end of the second servo motor is detachably connected to one end of the second lead screw. The connecting block is located on the outer wall of the second mounting bracket. The connecting block is threadedly connected to the second lead screw. The rotation of the second servo motor drives the second lead screw to rotate, so that the connecting block drives the second mounting bracket and the heating component to move along the length direction of the second lead screw and the second linear slide rail.

[0012] Preferably, a third mounting bracket is provided on the opposite surface of the top plate on both sides, an assembly plate is provided on the opposite surface of the third mounting bracket on both sides, a mounting knife holder is provided on the opposite surface of the assembly plate on both sides, and an inclined scraper is provided on the opposite surface of the mounting knife holder on both sides, the scraper scraping the upper and lower sides of the heating component.

[0013] Preferably, the opposing surfaces of the two third mounting brackets are detachably connected to an electric telescopic rod, an assembly plate is set at the telescopic end of the electric telescopic rod, the assembly plate is provided with multiple telescopic components, the mounting knife holder is set on the telescopic end of the telescopic component, and a buffer spring is provided on the outside of the telescopic end of the telescopic component. When the heating component moves laterally, it contacts the inclined mounting knife holder, and the telescopic component retracts and compresses the buffer spring so that the scraper is located on the surface of the heating component.

[0014] Preferably, the upper mounting part includes an upper mold and an adsorption assembly, and the lower mounting part includes a lower mold and an adsorption assembly, wherein the adsorption assembly is one of vacuum adsorption or telescopic cylinder clamping.

[0015] Preferably, the heating assembly includes a movable platform and heating plates mounted on the upper and lower sides of the movable platform.

[0016] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0017] 1. The equipment adopts a core layout of left and right dual workstations and a single heating component. When the workpiece is heated at the left workstation, the robot can simultaneously clamp the workpiece at the right workstation. After the left workstation is heated, the heating component moves laterally to the right workstation for heating. At this time, the left workstation immediately enters the mold closing and welding process, forming a seamless cycle of clamping, heating and welding. Compared with the traditional single-workstation equipment that has to wait for the heating to be completed before clamping the next set of workpieces, this design minimizes the process interval time, significantly improves the welding output per unit time, and adapts to the needs of large-scale production.

[0018] 2. Through the combined design of electric telescopic rod, tilting scraper and buffer spring, the surface of the heating plate can be automatically scraped and cleaned when the heating component moves from one station to another. This can remove the residual molten material from the workpiece during heating, avoiding the accumulation of molten material that affects subsequent heating efficiency or causes workpiece contamination. At the same time, the buffer spring can prevent the scraper from rigidly colliding with the heating plate, protecting the flatness of the heating plate surface and its service life, and maintaining a stable heating effect over a long period of time.

[0019] 3. The upper and lower mounting parts achieve lifting and lowering movements through the cooperation of the first linear slide rail and the sliding block, and both move along the same slide rail path to avoid mold misalignment caused by guide deviation; at the same time, the drive component adopts the transmission method of the first servo motor and the first lead screw, which can accurately control the lifting speed and displacement of the upper and lower mounting parts, ensuring uniform contact pressure between the workpiece and the heating plate, and avoiding local overheating or incomplete fusion problems.

[0020] 4. The core layout design of left and right dual workstations and single heating component allows a single heating component to alternately provide heating support for the workpieces at both workstations. Compared with the traditional single workstation corresponding to a single heating component, this design can significantly reduce the overall power consumption of the equipment while ensuring the same production efficiency. Its power saving effect is equivalent to reducing the energy consumption of nearly one traditional piece of equipment, thereby efficiently achieving the goal of energy saving. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of a dual-station hot plate welding machine according to the present invention;

[0022] Figure 2 This is a front view structural diagram of the dual-station hot plate welding machine of this utility model;

[0023] Figure 3 This is a schematic diagram of the guide component structure in this utility model;

[0024] Figure 4 In this utility model Figure 3 Enlarged structural diagram at point A in the middle;

[0025] Figure 5 In this utility model Figure 3 Enlarged structural diagram at point B;

[0026] Figure 6 This is a schematic diagram of the transverse guide component structure in this utility model;

[0027] Figure 7 In this utility model Figure 3 Enlarged structural diagram at point C.

[0028] The correspondence between the labels and component names in the attached figures is as follows:

[0029] 100. Cabinet installation; 101. Upper cabinet; 102. Middle cabinet; 103. Lower cabinet; 104. Control chassis; 105. Barcode scanning component;

[0030] 200. Upper mounting part; 201. Lower mounting part; 202. Mounting side plate; 203. First linear slide rail; 204. Sliding block; 205. Mounting top plate; 206. First mounting bracket; 207. U-shaped bracket; 208. First lead screw; 209. First servo motor;

[0031] 300. Heating component; 301. Second mounting bracket; 302. Sliding plate; 303. Second linear guide rail; 304. Support frame; 305. Second lead screw; 306. Second servo motor; 307. Connecting block;

[0032] 400. Third mounting bracket; 401. Electric telescopic rod; 402. Assembly plate; 403. Telescopic component; 404. Buffer spring; 405. Mounting tool holder; 406. Scraper. Detailed Implementation

[0033] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings.

[0034] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Those skilled in the art can make similar extensions without departing from the spirit of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0035] Secondly, the term "an embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The phrase "in one embodiment" appearing in different places in this specification does not necessarily refer to the same embodiment, nor is it a single or selective embodiment that excludes other embodiments. The present invention provides the following embodiments.

[0036] like Figure 1 as well as Figure 2The diagram shown is a schematic representation of a preferred embodiment of the present invention: a dual-station hot plate welding machine. This embodiment includes a mounting cabinet 100, comprising an upper cabinet 101, a middle cabinet 102, and a lower cabinet 103. The upper cabinet 101, middle cabinet 102, and lower cabinet 103 are detachably connected. The upper left and right sides of the middle cabinet 102 are each equipped with a liftable upper mounting section 200, and the lower left and right sides of the middle cabinet 102 are each equipped with a liftable upper mounting section 200. The lower mounting part 201 is lowered, and a heating component 300 that can move left and right is provided at the center of the middle cabinet 102. Scanning components 105 are provided on both sides of the middle cabinet 102, and a control box 104 is provided on one side of the middle cabinet 102. In this embodiment, a robotic arm places the two workpieces to be welded between the upper mounting part 200 and the lower mounting part 201 on the left side, causing the heating component 300 to move to the left and be positioned between the upper mounting part 200 and the lower mounting part 201 on the left side. The lower mounting part 201 closes the mold and contacts the heating assembly 300 to heat the workpiece. At the same time, the robot arm installs the workpiece onto the two upper mounting parts 200 and lower mounting parts 201 on the right side. After installation, the heating assembly 300 also finishes heating and moves from left to right to heat the workpiece on the upper mounting part 200 and lower mounting part 201 on the right side. At this time, the upper mounting part 200 and lower mounting part 201 on the left side close the mold and weld. After the right side finishes heating, the heating assembly 300 resets, and the upper mounting part 200 and lower mounting part 201 on the right side close the mold to weld the workpiece. At this time, the upper mounting part 200 and lower mounting part 201 on the left side are welded and reset. The robot arm takes out the workpiece. The heating assembly 300 can heat the upper mounting parts 200 and lower mounting parts 201 on both sides. With the robot arm, the workpiece can be continuously welded, which improves the welding efficiency. The barcode scanning assembly 105 allows the robot arm to scan the workpiece before placing it to ensure correct welding. The welding is controlled by the control box 104.

[0037] like Figure 2 As shown, this is a schematic diagram of the guide component structure in this embodiment. The inner sides of the cabinet 102 are detachably connected to mounting side plates 202. The opposing surfaces of the mounting side plates 202 are detachably connected to front-to-back first linear slide rails 203. Sliding blocks 204 are detachably connected to the outer walls of the upper mounting part 200 and the lower mounting part 201. The sliding blocks 204 are slidably connected to the first linear slide rails 203 on both sides. Mounting top plates 205 are detachably connected to the upper and lower ends of the mounting side plates 202. Driving components are mounted on the mounting top plates 205. The driving components drive the upper mounting part 200 and the lower mounting part 201 to move up and down. In this embodiment, the upper mounting part 200 and the lower mounting part 201 move along the same path of the first linear slide rails 203, thereby enabling more precise mold closing or contact with the heating component 300.

[0038] like Figure 2 as well as Figure 3 This is a schematic diagram of the drive component structure in this embodiment. First mounting brackets 206 are detachably connected to both sides of the mounting top plate 205. A first servo motor 209 is detachably connected to the upper end of the first mounting bracket 206. The rotating end of the first servo motor 209 is inserted into the interior of the first mounting bracket 206. A U-shaped bracket 207 is provided inside the first mounting bracket 206. The two vertical sides of the U-shaped bracket 207 pass through the mounting top plate 205. A first lead screw 208 is threadedly connected to the horizontal side of the U-shaped bracket 207. The protruding end of the U-shaped bracket 207 is detachably connected to the adjacent upper mounting part 200 or lower mounting part 201. In this embodiment, the first lead screw 208 is driven to rotate by the rotation of the first servo motor 209, thereby controlling the U-shaped bracket 207 to drive the upper mounting part 200 and lower mounting part 201 to rise and fall, thus controlling the upper mounting part 200 and lower mounting part 201 on both sides to close the mold and weld the workpiece.

[0039] It is worth noting that the first servo motor 209, the first lead screw 208, the U-shaped bracket 207, and the first mounting bracket 206 mentioned above are the drive components in this embodiment.

[0040] It is worth noting that the upper mounting part 200 includes an upper mold and an adsorption assembly, and the lower mounting part 201 includes a lower mold and an adsorption assembly. The adsorption assembly is one of vacuum adsorption or telescopic cylinder clamping.

[0041] like Figure 3 , Figure 5 as well as Figure 6As shown, this is a schematic diagram of the lateral movement component structure in this embodiment. The bottom sides of the middle cabinet 102 are detachably connected to second linear slide rails 303. The bottom of the heating component 300 is detachably connected to a second mounting bracket 301. The bottom of the second mounting bracket 301 is detachably connected to a sliding plate 302, which is slidably connected to the second linear slide rails 303. One side of the bottom inner side of the middle cabinet 102 is detachably connected to opposing left and right support frames 304. A second lead screw 305 is rotatably connected between the two support frames 304. The bottom of the middle cabinet 102 is detachably connected to a second servo motor 306. The rotating end of 306 is detachably connected to one end of the second lead screw 305. The outer wall of the second mounting bracket 301 is detachably connected to a connecting block 307, which is threadedly connected to the second lead screw 305. In this embodiment, the second lead screw 305 is rotated by the rotation of the second servo motor 306, which in turn drives the second mounting bracket 301 and the heating component 300 to move along the length direction of the second lead screw 305 and the second linear slide rail 303 through the connecting block 307. This allows the heating component 300 to move left and right between the lower mounting part 201 and the upper mounting part 200 on both sides to heat the workpiece.

[0042] It is worth noting that the aforementioned support frame 304, second lead screw 305, second servo motor 306, and connecting block 307 are the lateral movement components in this embodiment.

[0043] It is also worth noting that the heating assembly 300 includes a movable platform and heating plates installed on the upper and lower sides of the movable platform.

[0044] like Figure 3 as well as Figure 7As shown, this is a schematic diagram of the cleaning component structure in this embodiment. A third mounting bracket 400 is detachably connected to the opposite surfaces of the top mounting plates 205 on both sides. An electric telescopic rod 401 is detachably connected to the opposite surfaces of the third mounting brackets 400 on both sides. An assembly plate 402 is detachably connected to the telescopic ends of the electric telescopic rods 401 on both sides. Multiple telescopic components 403 are provided on the assembly plate 402. A mounting knife holder 405 is detachably connected to the telescopic end of the telescopic component 403. An inclined scraper 406 is detachably connected to the mounting knife holder 405. A buffer spring 404 is provided on the outside of the telescopic end of the telescopic component 403. In this embodiment, the extension of the electric telescopic rod 401 causes the scraper 406 to be positioned on the moving path of the heating plates on both sides. This allows the scraper 406 to contact the surface of the heating plate and clean the surface of the heating plate when the heating component 300 moves from one side to the other while heating a workpiece on one side. This prevents molten material from the workpiece from sticking to the surface of the heating plate and affecting subsequent heating operations. The buffer spring 404 and the inclined scraper 406 are designed so that when the heating component 300 moves laterally and touches the scraper 406, the scraper 406 will move upward and compress the buffer spring 404, thus preventing the scraper 406 from extending too far and creating a restriction between it and the heating component 300.

[0045] The above description, in conjunction with specific embodiments, provides a further detailed explanation of the present utility model. It should not be construed that the specific implementation of the present utility model is limited to these descriptions. For those skilled in the art, several simple deductions or substitutions can be made without departing from the concept of the present utility model, and all such deductions or substitutions should be considered to fall within the scope of protection defined by the claims submitted by the present utility model.

Claims

1. A double station hot plate welding machine comprising a mounting cabinet (100), characterized in that, The mounting cabinet (100) has a liftable upper mounting part (200) on the top of the left and right sides inside, and a liftable lower mounting part (201) on the bottom of the left and right sides inside. The mounting cabinet (100) has a heating component (300) that can move laterally inside. The middle cabinet (102) has mounting side panels (202) on both sides inside. The opposite surfaces of the two mounting side panels (202) are provided with front-to-back first linear slide rails (203). The upper mounting part (200) and the lower mounting part (201) move along the same first linear slide rail (203). The heating assembly (300) can move left and right sequentially to heat the workpieces on the upper mounting part (200) and lower mounting part (201) on the left and the upper mounting part (200) and lower mounting part (201) on the right.

2. The dual station hot plate bonding machine of claim 1, wherein, Sliding blocks (204) are provided on the outer walls of the upper mounting part (200) and the lower mounting part (201). The sliding blocks (204) are slidably connected to the first linear slide rails (203) on both sides. Mounting top plates (205) are provided at the upper and lower ends of the mounting side plates (202) on both sides. Driving components are installed on the mounting top plates (205) on both sides. The driving components drive the upper mounting part (200) and the lower mounting part (201) to move up and down.

3. The dual station hot plate bonding machine of claim 2, wherein, The drive assembly includes a first servo motor (209), a first lead screw (208), a U-shaped bracket (207), and a first mounting bracket (206). The first mounting bracket (206) is disposed on the left and right sides of the two mounting top plates (205). The first servo motor (209) is disposed on the upper end of the first mounting bracket (206), and the rotating end of the first servo motor (209) is inserted into the interior of the first mounting bracket (206). The U-shaped bracket (207) is disposed on the first mounting bracket (206). Inside the U-shaped bracket (207), the two vertical sides of the U-shaped bracket (207) pass through the mounting top plate (205). The first lead screw (208) is threadedly connected to the horizontal side of the U-shaped bracket (207). The protruding end of the U-shaped bracket (207) is detachably connected to the adjacent upper mounting part (200) or lower mounting part (201). The first servo motor (209) rotates to drive the first lead screw (208) to rotate, so that the U-shaped bracket (207) drives the upper mounting part (200) and the lower mounting part (201) to rise and fall.

4. The dual-station hot plate welding machine according to claim 3, characterized in that, The bottom of the middle cabinet (102) is detachably connected to the two sides of the second linear slide rail (303). The bottom of the heating component (300) is detachably connected to the second mounting bracket (301). The bottom of the second mounting bracket (301) is detachably connected to the sliding plate (302). The sliding plate (302) is slidably connected to the second linear slide rail (303). A lateral movement component is installed on the mounting cabinet (100). The lateral movement component drives the heating component (300) to move laterally along the length direction of the second linear slide rail (303).

5. The dual station hot plate bonding machine of claim 4, wherein, The lateral movement component includes a support frame (304), a second lead screw (305), a second servo motor (306), and a connecting block (307). The support frames (304) are arranged opposite each other on the bottom of the inner side of the middle cabinet (102). The second lead screw (305) is rotatably connected between the two support frames (304). The second servo motor (306) is located at the bottom of the middle cabinet (102). The rotating end of the second servo motor (306) is detachably connected to one end of the second lead screw (305). The connecting block (307) is located on the outer wall of the second mounting bracket (301). The connecting block (307) is threadedly connected to the second lead screw (305). The rotation of the second servo motor (306) drives the second lead screw (305) to rotate, so that the connecting block (307) drives the second mounting bracket (301) and the heating component (300) to move along the length direction of the second lead screw (305) and the second linear slide rail (303).

6. The dual station hot plate welder of claim 3, wherein, A third mounting bracket (400) is provided on the opposite surface of the top plate (205) on both sides. An assembly plate (402) is provided on the opposite surface of the third mounting bracket (400) on both sides. A mounting knife holder (405) is provided on the opposite surface of the assembly plate (402) on both sides. An inclined scraper (406) is provided on the opposite surface of the mounting knife holder (405) on both sides. The scraper (406) scrapes the upper and lower sides of the heating component (300).

7. The dual station hot plate bonding machine of claim 6, wherein, Electric telescopic rods (401) are detachably connected to the opposite surfaces of the third mounting brackets (400) on both sides. A mounting plate (402) is set on the telescopic end of the electric telescopic rod (401). Multiple telescopic components (403) are set on the mounting plate (402). A mounting knife holder (405) is set on the telescopic end of the telescopic component (403). A buffer spring (404) is set on the outside of the telescopic end of the telescopic component (403). The heating component (300) moves laterally to contact the inclined mounting knife holder (405). The telescopic component (403) contracts and compresses the buffer spring (404) so ​​that the scraper (406) is located on the surface of the heating component (300).

8. The dual station hot plate welder of claim 1, wherein, The upper mounting part (200) includes an upper mold and an adsorption assembly, and the lower mounting part (201) includes a lower mold and an adsorption assembly, wherein the adsorption assembly is one of vacuum adsorption or telescopic cylinder clamping.

9. The dual station hot plate welder of claim 1, wherein, The heating assembly (300) includes a movable stage and heating plates mounted on the upper and lower sides of the movable stage.

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