A tray production welding heating device

Abstract

The utility model relates to the technical field of plastic pallet, specifically relates to a tray production welding heating device, including welding chamber, be located in the moving plate of welding chamber inner chamber, a plurality of fixed installation in the mounting block of moving plate surface, the heating pipe of adaptation installation in the inside of mounting block and for heating plastic pallet, respectively be located in the moving piece for conveying plastic pallet of welding chamber both sides, and be located in the welding piece for welding plastic pallet of welding chamber top department. The utility model discloses through setting up cleaning mechanism, can in the smoke of plastic high temperature production easy to adhere in the heating pipe surface, lead to heat transfer to be blocked when, in the case of without manual intervention, automatically drive the slide rod to drive the buffer pad to knock the moving plate surface, vibration transmission to heating pipe, make the smoke particle inertia drop, to realize ensuring that heat can effectively transfer to plastic pallet, avoid the effect that heat is accumulated in the vicinity of heating pipe, improve heating efficiency.

Description

Technical Field

[0001] This utility model relates to the field of plastic pallet technology, specifically to a welding heating device for pallet production. Background Technology

[0002] Pallet production welding heating equipment is mainly used to heat plastic parts during the welding process of plastic pallets, so that they reach a molten state, so that different parts can be connected into a complete pallet through welding.

[0003] In the prior art, the plastic pallet welding machine with patent publication number CN221775296U has an upper worktable equipped with multiple third clamps capable of holding third pallet plastic parts; a third drive device that drives the upper worktable to move up and down; a first lower worktable fixed with multiple first clamps capable of holding first pallet plastic parts; and a first drive device that drives the first lower worktable to move below the upper worktable. This device is assembled by welding and can select different plastic parts according to different needs, allowing for flexible combinations to obtain products with different requirements. The processing of plastic parts significantly reduces the overall volume of the plastic pallet, and the processing equipment can also be reduced in size, lowering the unit cost.

[0004] When this device heats plastic pallets, because plastic is mostly composed of high molecular polymers, it will undergo pyrolysis or oxidation reactions at high temperatures, thereby producing volatile substances and tiny particles, forming flue gas. The flue gas usually adheres to the surface of the heating tube, which may not only make it difficult to effectively transfer heat to the pallet, but may also cause heat to accumulate near the heating tube, causing the temperature of the heating tube and surrounding components to rise continuously. This may not only exceed the normal operating temperature range designed for the equipment, affecting the equipment performance and lifespan, but also increase energy consumption and cause energy waste. Utility Model Content

[0005] In view of the above-mentioned shortcomings of the existing technology, the present invention provides a welding heating device for pallet production, which can effectively solve the problem that when heating plastic pallets, the fumes generated by the plastic at high temperature will adhere to the surface of the heating tube.

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

[0007] This utility model provides a welding heating device for pallet production, including a welding device body, a welding chamber, a movable plate disposed in the inner cavity of the welding chamber, a plurality of mounting blocks fixedly installed on the surface of the movable plate, a heating pipe adapted to be installed inside the mounting blocks and used for heating plastic pallets, movable parts disposed on both sides of the welding chamber and used for conveying plastic pallets, and a welding part disposed on the top of the welding chamber and used for welding plastic pallets.

[0008] The cleaning mechanism includes a drive assembly located on the outside of the moving plate to provide linear power when plastic fume particles adhere to the surface of the heating tube, causing the surface of the moving plate to overheat.

[0009] The driving assembly includes a heat-conducting sleeve fixedly connected to the outer surface of the moving plate, a thermal expansion block disposed in the inner cavity of the heat-conducting sleeve, a slider slidably connected to the inner wall of the heat-conducting sleeve and capable of moving as the thermal expansion block expands, and a transmission rod fixedly connected to the outer surface of the slider.

[0010] An acceleration component is provided on the outside of the drive component for converting the linear force generated by the thermal expansion block pushing the slider into an accelerating rotational force.

[0011] A clutch assembly, located on the outside of the acceleration assembly, is used to transmit rotational power of the acceleration assembly only when the thermal expansion block pushes the slider.

[0012] And a vibration component located outside the clutch assembly, which is capable of striking the surface of the moving plate with the rotational power of the clutch assembly, causing the flue gas particles on the surface of the heating tube to fall off.

[0013] Furthermore, the drive assembly also includes a force-applying block fixedly connected to the through end of the transmission rod, and a first spring fixedly installed on the outer surface of the slider.

[0014] Furthermore, the outer surface of the transmission rod slides in contact with the inner surface of the heat-conducting sleeve, and the outer end face of the first spring abuts against the inner wall of the heat-conducting sleeve.

[0015] Furthermore, the acceleration assembly includes a swing frame slidably sleeved on the outer surface of the force-applying block, a gear ring fixedly connected to the outer end face of the swing frame, a plurality of planetary gears meshing with the inner wall of the gear ring, a star gear meshing with the adjacent side of the plurality of planetary gears, a rotating rod fixedly connected to the inner surface of the planetary gears, a turntable rotatably sleeved on the outer surface of the rotating rod, a rotating sleeve fixedly connected to the inner surface of the turntable, and a connecting rod fixedly installed on the outer end face of the star gear.

[0016] Furthermore, a rotating bearing sleeve is installed at the connection between the rotating sleeve and the moving plate, and the outer surface of the connecting rod is in rotatable contact with the inner wall of the rotating sleeve.

[0017] Furthermore, the clutch assembly includes a ratchet fixedly sleeved on the through end of the connecting rod, a pawl engaged with the outside of the ratchet, a swivel pin rotatably connected to the inner surface of the pawl, a mounting plate fixedly connected to the outer end face of the swivel pin, a driven rod fixedly connected to the other end of the mounting plate, and a second spring fixedly installed on the inner wall of the mounting plate and used in conjunction with the pawl.

[0018] Furthermore, the vibration assembly includes a fixed frame fixedly connected to the outer surface of the movable plate, a cam fixedly sleeved on the through end of the driven rod, a slide rod disposed below the cam, a buffer pad fixedly connected to the outer end face of the slide rod and used to strike the movable plate to generate vibration, and a third spring sleeved on the outside of the slide rod.

[0019] Furthermore, the outer end face of the mounting plate abuts against the outer surface of the pawl, a rotating bearing sleeve is installed at the connection between the driven rod and the fixed frame, and the two ends of the third spring are fixedly connected to the outer surfaces of the fixed frame and the slide rod, respectively.

[0020] The technical solution provided by this utility model has the following advantages compared with the known prior art:

[0021] This invention, by setting up a cleaning mechanism, can automatically drive a sliding rod to drive a buffer pad to strike the surface of the moving plate without manual intervention when the fumes generated at high temperatures in the plastic easily adhere to the surface of the heating tube, thus obstructing heat transfer. The vibration is transmitted to the heating tube, causing the fumes particles to fall off due to inertia. This ensures that heat can be effectively transferred to the plastic tray, avoids heat accumulation near the heating tube, and improves heating efficiency. Attached Figure Description

[0022] 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.

[0023] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0024] Figure 2 This is a schematic diagram of the overall structure of the movable plate in this utility model;

[0025] Figure 3 This utility model Figure 2 A magnified view of the structure at point A in the middle;

[0026] Figure 4This is a schematic diagram of the internal structure of the heat-conducting sleeve in this utility model;

[0027] Figure 5 This is a structural schematic diagram of the movable plate in this utility model from another perspective;

[0028] Figure 6 This utility model Figure 2 A magnified view of the structure at point A in the middle;

[0029] Figure 7 This is a schematic diagram of the overall structure of the clutch assembly in this utility model.

[0030] The labels in the diagram represent: 100, welding device body; 110, welding chamber; 120, moving plate; 130, mounting block; 140, heating tube; 150, moving part; 160, welding part; 200, cleaning mechanism; 210, drive assembly; 211, heat-conducting sleeve; 212, thermal expansion block; 213, slider; 214, transmission rod; 215, force-applying block; 216, first spring; 220, acceleration assembly; 221, swing frame; 22 2. Gear ring; 223. Planetary gear; 224. Sun gear; 225. Rotating rod; 226. Turntable; 227. Rotating sleeve; 228. Connecting rod; 230. Clutch assembly; 231. Ratchet; 232. Pad; 233. Rotating column; 234. Mounting plate; 235. Driven rod; 236. Second spring; 240. Vibration assembly; 241. Fixing frame; 242. Cam; 243. Slide rod; 244. Buffer pad; 245. Third spring. Detailed Implementation

[0031] 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.

[0032] The present invention will be further described below with reference to the embodiments.

[0033] Example: A welding heating device for pallet production, see attached document. Figure 1 - Appendix Figure 5 ,include,

[0034] The welding device body 100 includes a welding chamber 110, a movable plate 120 disposed in the inner cavity of the welding chamber 110, a plurality of mounting blocks 130 fixedly mounted on the surface of the movable plate 120, a heating tube 140 adapted to be installed inside the mounting block 130 and used for heating a plastic pallet, movable parts 150 respectively disposed on both sides of the welding chamber 110 and used for conveying the plastic pallet, and a welding part 160 disposed on the top of the welding chamber 110 and used for welding the plastic pallet.

[0035] It should be noted that the welding chamber 110 is used to provide a closed welding operation space, isolate external environmental interference, and ensure the stable operation of the heating and welding process. The moving plate 120 is used to support the mounting block 130 and the heating tube 140, and at the same time, it provides the cleaning mechanism 200 with the mounting block 130 for fixing the heating tube 140. The heating tube 140 can generate heat when energized, and heat the plastic pallet at high temperature to melt it for welding. The moving part 150 can automatically transport the plastic pallet into the welding chamber to complete the loading and unloading process. The welding part 160 is used to apply pressure or ultrasonic energy to the heated plastic pallet to achieve component welding. The welding device body 100 is existing technology, and this solution will not describe it in detail. Moreover, those skilled in the art can clearly understand its working principle.

[0036] The cleaning mechanism 200 includes a drive assembly 210 located on the outside of the moving plate 120, which provides linear power when plastic fume particles adhere to the surface of the heating tube 140, causing the surface of the moving plate 120 to overheat.

[0037] The drive assembly 210 includes a heat-conducting sleeve 211 fixedly connected to the outer surface of the movable plate 120, a thermal expansion block 212 disposed in the inner cavity of the heat-conducting sleeve 211, a slider 213 slidably connected to the inner wall of the heat-conducting sleeve 211 and capable of moving with the expansion of the thermal expansion block 212, and a transmission rod 214 fixedly connected to the outer surface of the slider 213.

[0038] It should be noted that when the surface of the heating tube 140 is heated due to the accumulation of flue gas particles, the heat is conducted to the heat-conducting sleeve 211 through the moving plate 120, causing the internal thermal expansion block 212 to expand due to heat, and pushing the slider 213, the transmission rod 214 and the force block 215 to move linearly. The first spring 216 is used to push the slider 213 and the transmission rod 214 to reset when the temperature of the heating tube 140 drops, waiting for the next trigger.

[0039] An acceleration component 220 is located outside the drive component 210 for converting the linear force generated by the thermal expansion block 212 pushing the slider 213 into accelerating rotational force.

[0040] The clutch assembly 230 is located outside the acceleration assembly 220 and is used to transmit rotational power to the acceleration assembly 220 only when the thermal expansion block 212 pushes the slider 213.

[0041] And a vibration component 240, which is located outside the clutch assembly 230, can strike the surface of the moving plate 120 with the rotational power of the clutch assembly 230, causing the flue gas particles on the surface of the heating tube 140 to fall off.

[0042] Specifically, the drive assembly 210 also includes a force-applying block 215 fixedly connected to the through end of the transmission rod 214, and a first spring 216 fixedly installed on the outer surface of the slider 213.

[0043] Furthermore, the outer surface of the transmission rod 214 slides in contact with the inner surface of the heat-conducting sleeve 211, and the outer end face of the first spring 216 abuts against the inner wall of the heat-conducting sleeve 211.

[0044] Preferably, the acceleration assembly 220 includes a swing frame 221 slidably sleeved on the outer surface of the force-applying block 215, a gear ring 222 fixedly connected to the outer end face of the swing frame 221, a plurality of planetary gears 223 meshing with the inner wall of the gear ring 222, a sun gear 224 meshing with the adjacent side of the plurality of planetary gears 223, a rotating rod 225 fixedly connected to the inner surface of the planetary gears 223, a turntable 226 rotatably sleeved on the outer surface of the rotating rod 225, a rotating sleeve 227 fixedly connected to the inner surface of the turntable 226, and a connecting rod 228 fixedly installed on the outer end face of the sun gear 224.

[0045] It should also be noted that when the transmission rod 214 drives the force-applying block 215, the force-applying block 215 can push the gear ring 222 to rotate through the swing frame 221. The gear ring 222 then drives the planetary gear 223 to revolve while rotating on its own axis. This causes the planetary gear 223 to drive the central star gear 224 and the connecting rod 228 to rotate faster. Through the cooperation of the rotating rod 225 and the turntable 226, multiple planetary gears 223 can be supported to ensure smooth rotation.

[0046] It should be noted that a rotating bearing sleeve is installed at the connection between the rotating sleeve 227 and the movable plate 120, and the outer surface of the connecting rod 228 is in rotational contact with the inner wall of the rotating sleeve 227.

[0047] Furthermore, the clutch assembly 230 includes a ratchet 231 fixedly sleeved on the through end of the connecting rod 228, a pawl 232 engaged with the outside of the ratchet 231, a swivel pin 233 rotatably connected to the inner surface of the pawl 232, a mounting plate 234 fixedly connected to the outer end face of the swivel pin 233, a driven rod 235 fixedly connected to the other end of the mounting plate 234, and a second spring 236 fixedly installed on the inner wall of the mounting plate 234 and used in conjunction with the pawl 232.

[0048] It should also be noted that when the connecting rod 228 rotates, it can drive the ratchet 231 to rotate synchronously. When the ratchet 231 rotates counterclockwise, that is, when the linear force generated by the thermal expansion block 212 pushing the slider 213 is transmitted to the acceleration component 220, the mounting plate 234 is driven to rotate through the cooperation of the ratchet 231, the pawl 232 and the rotating column 233, so as to drive the driven rod 235 to rotate, so as to drive the vibration component 240 to strike the surface of the moving plate 120, causing the flue gas particles on the surface of the heating tube 140 to fall off.

[0049] It should be explained that when the ratchet 231 rotates clockwise, the thermal expansion block 212 contracts, and the slider 213 is reset by the first spring 216. When the acceleration component 220 is driven to rotate in the opposite direction, the ratchet 231 squeezes the pawl 232, causing the pawl 232 to rotate around the rotating column 233. Then, the reaction force of the second spring 236 drives the pawl 232 to rotate and reset. This ensures that the pawl 232 and the ratchet 231 maintain their meshing tendency, while not driving the mounting plate 234 and the driven rod 235 to rotate, thus avoiding excessive vibration of the vibration component 240 and damage to the moving plate 120.

[0050] Specifically, the vibration assembly 240 includes a fixed frame 241 fixedly connected to the outer surface of the movable plate 120, a cam 242 fixedly sleeved on the through end of the driven rod 235, a slide rod 243 located below the cam 242, a buffer pad 244 fixedly connected to the outer end face of the slide rod 243 and used to strike the movable plate 120 to generate vibration, and a third spring 245 sleeved on the outside of the slide rod 243.

[0051] The driven rod 235 can drive the cam 242 to rotate synchronously. The cam 242 can periodically press the slide rod 243 downward through its edge structure, so that the slide rod 243 strikes the moving plate 120 through the buffer pad 244. The vibration is transmitted to the heating tube 140 through the moving plate 120, causing the flue gas particles to fall off due to inertia. The third spring 245 is used to push the slide rod 243 to reset when the cam 242 rotates to the non-pressing position, preparing for the next strike. The buffer pad 244 is used to prevent damage to the moving plate 120 when it strikes.

[0052] Preferably, the outer end face of the mounting plate 234 abuts against the outer surface of the pawl 232, a rotating bearing sleeve is installed at the connection between the driven rod 235 and the fixed frame 241, and the two ends of the third spring 245 are fixedly connected to the outer surfaces of the fixed frame 241 and the slide rod 243, respectively.

[0053] When using,

[0054] The plastic pallet is automatically transported to the welding chamber 110 by the moving part 150. After the heating tube 140 is powered on, it generates heat to heat the pallet and melt it. The welding part 160 is controlled to apply pressure or energy to the heated pallet to complete the welding.

[0055] When the surface of the heating tube 140 is heated due to the accumulation of flue gas particles, the heat is conducted to the heat-conducting sleeve 211 through the moving plate 120, causing the thermal expansion block 212 inside to expand due to heat and push the slider 213, the transmission rod 214 and the force block 215 to move linearly. The force block 215 pushes the swing frame 221 to make the gear ring 222 rotate. Then, the gear ring 222 drives the planetary gear 223 to revolve around the sun gear 224 while rotating on its own axis, thereby driving the sun gear 224 and the connecting rod 228 to accelerate their rotation.

[0056] The connecting rod 228 drives the ratchet 231 to rotate counterclockwise. Through the cooperation of the pawl 232 and the ratchet 231, the rotating column 233 drives the mounting plate 234 and the driven rod 235 to rotate synchronously. The driven rod 235 drives the cam 242 to rotate synchronously. The cam 242 periodically presses the slide rod 243 to move downward, so that the slide rod 243 hits the moving plate 120 through the buffer pad 244. The vibration is transmitted to the heating tube 140, causing the flue gas particles to fall off. When the third spring 245 pushes the slide rod 243 to reset when the cam 242 is not pressed, the slide rod 243 is pushed back to the original position.

[0057] When the gas particles fall off and the temperature of the heating tube 140 returns to normal: the thermal expansion block 212 contracts, pushing the slider 213 and the transmission rod 214 to reset through the first spring 216. At this time, the ratchet 231 rotates clockwise, squeezing the pawl 232 to rotate around the rotating column 233. The second spring 236 resets the pawl 232, but does not drive the mounting plate 234 and the driven rod 235 to rotate, so as to avoid excessive vibration and damage to the moving plate 120, and wait for the next overheating trigger cleaning.

[0058] In summary, by setting up the cleaning mechanism 200, when the fumes generated at high temperatures in the plastic easily adhere to the surface of the heating tube 140, causing heat transfer to be obstructed, the sliding rod 243 is automatically driven to drive the buffer pad 244 to knock on the surface of the moving plate 120 without manual intervention. The vibration is transmitted to the heating tube 140, causing the fumes particles to fall off due to inertia. This ensures that heat can be effectively transferred to the plastic tray, avoids heat accumulation near the heating tube, and improves heating efficiency.

[0059] 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 welding heating device for pallet production, comprising a welding device body (100), characterized in that: The welding device body (100) includes a welding chamber (110), a movable plate (120) disposed in the inner cavity of the welding chamber (110), a plurality of mounting blocks (130) fixedly installed on the surface of the movable plate (120), a heating tube (140) adapted to be installed inside the mounting block (130) and used for heating a plastic pallet, movable parts (150) respectively disposed on both sides of the welding chamber (110) and used for conveying the plastic pallet, and a welding part (160) disposed on the top of the welding chamber (110) and used for welding the plastic pallet. The cleaning mechanism (200) includes a drive assembly (210) located on the outside of the moving plate (120) to provide linear power when plastic fume particles adhere to the surface of the heating tube (140) and cause the surface of the moving plate (120) to overheat. The drive assembly (210) includes a heat-conducting sleeve (211) fixedly connected to the outer surface of the moving plate (120), a thermal expansion block (212) disposed in the inner cavity of the heat-conducting sleeve (211), a slider (213) slidably connected to the inner wall of the heat-conducting sleeve (211) and capable of moving with the expansion of the thermal expansion block (212), and a transmission rod (214) fixedly connected to the outer surface of the slider (213). An acceleration component (220) is provided on the outside of the drive component (210) to convert the linear force generated by the thermal expansion block (212) pushing the slider (213) into an accelerating rotational force. A clutch assembly (230) is provided on the outside of the acceleration assembly (220) for transmitting rotational power to the acceleration assembly (220) only when the thermal expansion block (212) pushes the slider (213); And a vibration component (240) located outside the clutch assembly (230) that can strike the surface of the moving plate (120) with the rotational power of the clutch assembly (230) to cause the flue gas particles on the surface of the heating tube (140) to fall off.

2. The pallet production welding heating device according to claim 1, characterized in that, The drive assembly (210) also includes a force-applying block (215) fixedly connected to the through end of the transmission rod (214), and a first spring (216) fixedly installed on the outer surface of the slider (213).

3. The pallet production welding heating device according to claim 2, characterized in that, The outer surface of the transmission rod (214) slides in contact with the inner surface of the heat-conducting sleeve (211), and the outer end face of the first spring (216) abuts against the inner wall of the heat-conducting sleeve (211).

4. The pallet production welding heating device according to claim 3, characterized in that, The acceleration assembly (220) includes a swing frame (221) slidably sleeved on the outer surface of the force-applying block (215), a gear ring (222) fixedly connected to the outer end face of the swing frame (221), a plurality of planetary gears (223) meshing with the inner wall of the gear ring (222), a star gear (224) meshing with the adjacent side of the plurality of planetary gears (223), a rotating rod (225) fixedly connected to the inner surface of the planetary gears (223), a turntable (226) rotatably sleeved on the outer surface of the rotating rod (225), a rotating sleeve (227) fixedly connected to the inner surface of the turntable (226), and a connecting rod (228) fixedly installed on the outer end face of the star gear (224).

5. The pallet production welding heating device according to claim 4, characterized in that, A rotating bearing sleeve is installed at the connection between the rotating sleeve (227) and the movable plate (120), and the outer surface of the connecting rod (228) is in rotational contact with the inner wall of the rotating sleeve (227).

6. The pallet production welding heating device according to claim 5, characterized in that, The clutch assembly (230) includes a ratchet (231) fixedly sleeved on the through end of the connecting rod (228), a pawl (232) engaged with the outside of the ratchet (231), a swivel (233) rotatably connected to the inner surface of the pawl (232), a mounting plate (234) fixedly connected to the outer end face of the swivel (233), a driven rod (235) fixedly connected to the other end of the mounting plate (234), and a second spring (236) fixedly installed on the inner wall of the mounting plate (234) and used in conjunction with the pawl (232).

7. The pallet production welding heating device according to claim 6, characterized in that, The vibration assembly (240) includes a fixed frame (241) fixedly connected to the outer surface of the movable plate (120), a cam (242) fixedly sleeved on the through end of the driven rod (235), a slide rod (243) provided below the cam (242), a buffer pad (244) fixedly connected to the outer end face of the slide rod (243) and used to strike the movable plate (120) to generate vibration, and a third spring (245) sleeved on the outside of the slide rod (243).

8. The pallet production welding heating device according to claim 7, characterized in that, The outer end face of the mounting plate (234) abuts against the outer surface of the pawl (232). A rotating bearing sleeve is installed at the connection between the driven rod (235) and the fixing frame (241). The two ends of the third spring (245) are fixedly connected to the outer surfaces of the fixing frame (241) and the slide rod (243), respectively.

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