Lifting device for heating plate of non-metallic material welding equipment

Abstract

The utility model discloses a lifting device for a heating plate of non-metallic material welding equipment, the heating plate is fixed on the lifting device, the lifting device comprises a lifting bottom plate, a lifting table top, two shear fork arms, a cross beam, a motor and a flexible chain; a sliding groove is formed in one end of the lifting bottom plate in the length direction, the top face of the lifting table top is connected with the bottom end of the heating plate, a motor is installed at one end of the bottom face of the lifting table top, the lifting table top and the lifting bottom plate are vertically arranged in parallel at intervals, and the motor is arranged at the end away from the sliding groove. The two shear fork arms are arranged in parallel front and back at intervals, the bottoms of the two shear fork arms are fixedly connected through a cross beam, the top ends of the shear fork arms are rotationally connected with the bottom face of the lifting table top, a sliding rod is arranged at one bottom end of each shear fork arm and slidably arranged in the corresponding sliding groove, and the other bottom end of each shear fork arm is rotationally connected with the bottom end, away from the corresponding sliding groove, of the lifting bottom plate. The motor is located between the two shear fork arms, and the output end of the motor is connected with the middle of the cross beam through a flexible chain.

Description

TECHNICAL FIELD

[0001] The utility model relates to welding technical field, concretely relates to a kind of heating plate's lifting device of nonmetallic material welding equipment. BACKGROUND

[0002] With the continuous development of national defense research, radioactive medicine and nuclear technology application, various radioactive rays are widely used, and the harm of rays to human body and the damage to environment are gradually recognized by mankind, and polyethylene is most widely used due to its highest hydrogen content.

[0003] Generally, the forming method of polyethylene shielding material includes compression molding, extrusion molding, injection molding, etc. For the manufacture of large size and thick products, the method of compression molding is usually selected. At present, in the structural design of shielding and protection materials, the structure of the protection area is complex, and the size of the shielding and protection layer required is large. In addition, in order to ensure the shielding and protection effect, the number of shielding material blocks and the splicing condition are reduced when designing the shielding material protection structure, which requires the size of the shielding material product to be large and integrated. The traditional forming method is difficult to meet the requirements, therefore, it is necessary to consider connecting the shielding material products to increase the size of the products.

[0004] Generally, the connection method between materials can be divided into physical connection and chemical connection. Physical connection has the disadvantages of easy loosening, poor sealing, stress concentration caused by material hole, easy breaking, etc., and it is difficult to meet the requirements of high efficiency and high reliability of plastic assembly connection. Melting welding does not need to add adhesive or flux, and there is no arc and smoke, which is a green and energy-saving, environmentally friendly welding method. The existing welding equipment mainly focuses on the welding of metal materials, and it is difficult to fully meet the special requirements of non-metallic material welding. For example, non-metallic materials have high requirements for precise positioning of welding parts, uniformity of heating and stable control of welding pressure during welding process. The traditional welding equipment has obvious shortcomings in these aspects, which makes it difficult to effectively guarantee the quality and efficiency of non-metallic material welding.

[0005] At the same time, the related literature reports of polyethylene hot melt welding technology mainly focus on polyethylene pipeline welding, and the research on polyethylene plate welding technology is less, especially the welding of thick product plates, which is rarely reported. Therefore, according to the welding requirements of thick product shielding materials, a kind of welding equipment is designed to provide a hardware basis for the feasibility of welding process.

[0006] In addition, during the welding process of non-metallic materials, accurate control of the distance between the heating plate and the welding parts is crucial to ensure the welding quality. The traditional welding equipment often has the problems of insufficient flexibility and low precision in heating plate height adjustment, which is difficult to meet the needs of different non-metallic materials and complex welding processes. Utility model content

[0007] To this end, the utility model provides a kind of lifting device of heating plate of nonmetal material welding equipment to solve the above problems in prior art.

[0008] To achieve the above object, the utility model provides the following technical scheme:

[0009] According to the first aspect of the utility model, a kind of lifting device of heating plate of nonmetal material welding equipment, the heating plate is fixed on the lifting device, and the lifting device includes lifting base plate, lifting desktop, two scissor arms, crossbeam, motor and flexible chain;

[0010] One end of the lifting base plate is provided with a sliding slot along its length direction, the top surface of the lifting desktop is connected with the bottom end of the heating plate, the bottom surface of the lifting desktop is installed with the motor, the lifting desktop and the lifting base plate are arranged in parallel and spaced apart, and the motor is arranged at the end away from the sliding slot;

[0011] Two scissor arms are arranged in parallel and spaced apart, and the bottom of two scissor arms is fixedly connected by the crossbeam, the top end of the scissor arm is rotatably connected with the bottom surface of the lifting desktop, one end of the scissor arm is provided with a sliding rod, the sliding rod is slidably arranged in the sliding slot, the other end of the scissor arm is rotatably connected with the bottom end of the lifting base plate away from the sliding slot, the motor is located between two scissor arms, and the output end of the motor is connected with the middle part of the crossbeam through the flexible chain.

[0012] Further, the scissor arm includes first lifting leg, second lifting leg and pivot rod, the middle part of the first lifting leg and the middle part of the second lifting leg are rotatably connected by the pivot rod, and the first lifting leg and the second lifting leg are arranged in cross, the top of the first lifting leg and the second lifting leg is rotatably connected with the bottom surface of the lifting desktop, the bottom of the second lifting leg of two scissor arms is fixedly connected by the crossbeam, the bottom end of the second lifting leg is connected with one end of the sliding rod, the other end of the sliding rod is slidably arranged in the sliding slot, and the bottom end of the first lifting leg is rotatably connected on the other end of the lifting base plate by stud.

[0013] Further, it further includes screw bearing, the screw bearing is arranged in the sliding slot, and the end of the sliding rod away from the second lifting leg is arranged in the screw bearing.

[0014] Further, the fixed frame is provided with a concave limiting groove in the side wall, and the two fixed frames are oppositely arranged at the two ends of the lifting desktop, and the two ends of the heating plate are clamped in the concave limiting grooves.

[0015] Further, the first lifting leg and the second lifting leg are of the same structure.

[0016] Further, the bottom of the lifting base plate is provided with second anchor bolts and second universal wheels, the second anchor bolts are uniformly arranged at the bottom edges of the lifting base plate in a telescopic mode, and the second universal wheels are arranged between adjacent second anchor bolts, the second anchor bolts are used for adjusting the levelness of the lifting base plate, and the second universal wheels are used for moving the position of the lifting base plate.

[0017] Further, the slide rod and the cross beam are arranged in parallel.

[0018] Further, the flexible chain is a steel wire rope or a nylon rope.

[0019] Further, the heating plate is a rectangular plate or a circular plate.

[0020] Further, the middle part of the cross beam is provided with a fixed pulley, the output end shaft of the motor is provided with a winding disc, one end of the flexible chain is wound on the winding disc, and the other end of the flexible chain is fixed on the fixed pulley.

[0021] The utility model has the advantages of:

[0022] (1), the combination of the lifting device and the heating plate realizes the flexible lifting movement of the heating plate in the height direction of the welding table frame. During the welding process, the distance between the heating plate and the welded part can be accurately adjusted according to the characteristics of different non-metallic materials, the thickness of the welded part and the welding process requirements. For thinner non-metallic materials, the height of the heating plate can be appropriately reduced to avoid excessive heating, and for thicker or poorly heat-conducting materials, the heating plate can be raised to ensure that the welded part can be fully heated. This adjustability ensures the uniformity and accuracy of heating, which is beneficial to obtain high-quality welding effect, such as higher strength and better sealing of the welded joint.

[0023] (2), since the height of the heating plate can be flexibly controlled, the equipment can adapt to various non-metallic material welding processes. For example, in the welding of thermoplastic plastics, the heating plate temperature and height can be accurately adjusted according to the melting point and softening temperature range of the plastic to realize fine control of the welding process, and for some special non-metallic material welding processes that require preheating or post-heating treatment, the heating plate position and heating time can also be conveniently adjusted by the lifting device to meet different process requirements, thereby widening the application range of the equipment. BRIEF DESCRIPTION OF DRAWINGS

[0024] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the following will briefly introduce the drawings needed to be used in the embodiments or prior art description. Obviously, the drawings in the following description are only exemplary, and for those skilled in the art, other drawings can be obtained from the provided drawings without creative labor.

[0025] The structures, proportions, sizes, etc. shown in the specification are only used to cooperate with the content disclosed in the specification, to be understood and read by those skilled in the art, and are not used to limit the implementation conditions of the present application, so they do not have technical significance. Any modification of structure, change of proportion relationship or adjustment of size, without affecting the effects and purposes that the present application can produce, should still fall within the scope of the technical content disclosed by the present application.

[0026] Figure 1 A non-metal material welding equipment provided for some embodiments of the present application Figure 1 .

[0027] Figure 2 A non-metal material welding equipment provided for some embodiments of the present application Figure 2 .

[0028] Figure 3 A non-metal material welding equipment provided for some embodiments of the present application

[0029] Figure 4 A non-metal material welding equipment provided for some embodiments of the present application Figure 1 .

[0030] Figure 5 A non-metal material welding equipment provided for some embodiments of the present application

[0031] Figure 6 A non-metal material welding equipment provided for some embodiments of the present application

[0032] Figure 7 A non-metal material welding equipment provided for some embodiments of the present application

[0033] Figure 8 A non-metal material welding equipment provided for some embodiments of the present application Figure 2 .

[0034] Figure 9The first view of the heating plate and the lifting device of the non-metal material welding equipment is provided for some embodiments of the utility model.

[0035] Figure 10 The second view of the heating plate and the lifting device of the non-metal material welding equipment is provided for some embodiments of the utility model.

[0036] Figure 11 The cross-sectional view of the non-metal material welding equipment is provided for some embodiments of the utility model.

[0037] Figure 12 The perspective view of the side pressing support of the non-metal material welding equipment is provided for some embodiments of the utility model.

[0038] Figure 13 The perspective view of the sliding platform of the non-metal material welding equipment is provided for some embodiments of the utility model.

[0039] In the drawings:

[0040] 104, part one; 105, part two;

[0041] 1, first ground foot; 2, first universal wheel; 3, welding table frame; 301, strip-shaped opening; 4, table top fixed plate; 5, small table connecting plate; 6, table top one; 7, table top two; 8, guide rail; 9, hydraulic baffle; 10, flange; 11, hydraulic cylinder; 12, lifting platform connecting plate;

[0042] 21, sliding platform; 22, reinforcing angle; 23, hand-operated lead screw; 24, pneumatic cylinder; 25, side pressing support; 26, fixed baffle; 27, universal ball; 28, lengthened top plate; 29, fixed reinforcing plate;

[0043] 31, heating plate; 32, fixed frame; 33, lifting table top; 34, lifting bottom plate; 35, stud; 36, motor; 37, steel wire rope; 38, fixed pulley; 39, scissor arm; 391, first lifting support leg; 392, second lifting table leg; 393, pivot rod;

[0044] 40, screw bearing; 41, second universal wheel; 42, second ground foot; 43, cross beam; 44, sliding groove. DETAILED DESCRIPTION

[0045] The following specific embodiments illustrate the embodiments of the present application, and those skilled in the art can easily understand other advantages and effects of the present application from the disclosed content. Obviously, the described embodiments are only some of the embodiments of the present application, rather than all. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0046] Embodiment 1

[0047] As Figures 1 to 13 shown, the non-metal material welding equipment in the first aspect of the present application comprises a welding table frame 3, a first welding sliding assembly, a second welding sliding assembly, a lifting device, a heating plate 31, a first driving device and a second driving device.

[0048] The welding table frame 3 is of a segmented structure, which is composed of two small tables of the same size. The two small tables are arranged in a straight line and are spaced apart. The end portions of the space between the two small tables are detachably connected through a table top fixing plate 4 and a small table connecting plate 5. The table top fixing plate 4 is located above the small table connecting plate 5. The table top fixing plate 4 is usually L-shaped. The table top one 6 of one small table and the table top two 7 of the other small table are detachably connected through the table top fixing plate 4. The table legs of the small tables are detachably connected through the small table connecting plate 5.

[0049] The first welding sliding assembly and the second welding sliding assembly are arranged at intervals along the length direction of the welding table frame 3. A strip-shaped opening 301 is arranged at the interval between the first welding sliding assembly and the second welding sliding assembly. The strip-shaped opening 301 is arranged along the width direction of the welding table frame 3. A welding part one 104 is fixed on the first welding sliding assembly. A welding part two 105 is fixed on the second welding sliding assembly.

[0050] The lifting device is arranged in the interior of the welding table frame 3. The bottom of the lifting device is fixed in the interior of the welding table frame 3 through a lifting platform connecting plate 12. The top of the lifting device is provided with the heating plate 31. The heating plate 31 penetrates the strip-shaped opening 301. The lifting device drives the heating plate 31 to move up and down along the height direction of the welding table frame 3. The lifting device can be an existing lifting device, such as a pneumatic or hydraulic lifting machine.

[0051] The end portion of the welding table frame 3 close to the first welding sliding assembly is provided with the first driving device. The first driving device is used to drive the first welding sliding assembly. The end portion of the welding table frame 3 close to the second welding sliding assembly is provided with the second driving device. The second driving device is used to drive the second welding sliding assembly. When welding, the first driving device and the second driving device move towards each other to make the welding part one 104 and the welding part two 105 abut.

[0052] Usage and working principle

[0053] I. Usage

[0054] Equipment assembly and preparation

[0055] Assemble the welding table frame made of two small tables of the same size. Arrange the two small tables in a straight line, then connect them using the table top fixing plate and small table connecting plate. Connect the two ends of the top of the L-shaped table top fixing plate to the ends of the two small tables with screws, and install the small table connecting plate with a height approximately the same as the table leg of the small table at the ends of the two small tables and below the table top fixing plate to ensure the stability of the welding table frame structure.

[0056] Install the first welding sliding assembly and the second welding sliding assembly on the welding table frame along its length direction, and check whether the strip-shaped opening is correctly opened and unobstructed. Fix welding part one on the first welding sliding assembly and welding part two on the second welding sliding assembly, and use appropriate clamps or fixing devices to ensure that the parts are firmly installed and accurately positioned.

[0057] If the lifting device uses a pneumatic or hydraulic elevator, check whether the connecting pipeline, valve and other components are normal to ensure that the lifting device can operate normally. Install the heating plate on the top of the lifting device and make sure that the heating plate can smoothly pass through the strip-shaped opening.

[0058] Install the first driving device at the end of the welding table frame close to the first welding sliding assembly, and install the second driving device at the end close to the second welding sliding assembly. Check whether the connection and power source of the driving device are normal, and debug the driving device to make it work normally.

[0059] Welding operation process

[0060] Turn on the heating plate, set the heating temperature and heating time of the heating plate according to the welding process requirements, adjust the height of the heating plate through the lifting device, and start the first driving device and the second driving device to move towards each other. The first driving device pushes the first welding sliding assembly with welding part one, and the second driving device pushes the second welding sliding assembly with welding part two. They gradually approach, and the heating plate is in close contact with the welding parts one and two to uniformly heat the welding parts. After heating, the first driving device and the second driving device are driven in reverse to separate the parts one and two. Then, through the lifting device, the heating plate is retracted into the strip-shaped opening of the welding table frame, and then the first driving device and the second driving device are driven forward to finally make the welding parts one and two in close contact. During the process of close contact, the movement speed and the applied pressure of the driving device should be controlled according to the welding process requirements to ensure the welding quality.

[0061] After welding is completed, first stop the drive device, then turn off the heating plate. After the welded parts have cooled to a suitable temperature, remove the welded workpiece from the welding sliding assembly, and clean any residual debris from the welding table and welding sliding assembly to prepare for the next welding operation.

[0062] II. Working Principle

[0063] Principle of positioning and fixing welding parts

[0064] The first and second welding sliding assemblies provide the foundation for the installation and positioning of the welding parts. Welding part one and welding part two are respectively fixed on their corresponding sliding assemblies. By setting the sliding assemblies at specific positions on the welding table and cooperating with the strip openings, the welding position of the welding parts can be precisely determined. For example, when the dimensional accuracy of the welding table and sliding assemblies is high, the position of the welding parts in the horizontal direction along the length of the welding table can be effectively controlled. At the same time, additional fixing devices such as clamps can be used to firmly fix the welding parts to the sliding assemblies, preventing displacement of the parts during welding and ensuring the accuracy of the welding position.

[0065] Heating principle

[0066] The distance between the heating plate and the parts to be welded can be adjusted by the lifting device. When the heating plate is energized or supplied with a heating medium, depending on the type of heating plate (e.g., electric heating plate or medium-heated plate), the heating plate begins to heat up and radiate heat outwards. By adjusting the height of the heating plate, the welding area of ​​welding parts one and two can receive heat of appropriate intensity, thereby bringing the material at the welding area to the temperature state required for welding, such as softening or melting the material, so that welding can be achieved under subsequent pressure.

[0067] Drive and welding principles

[0068] The first and second driving devices act on the first and second welding sliding components, respectively. When the driving devices are activated, the driving force they generate pushes the sliding components to move towards each other. For example, if the first driving device is a hydraulic cylinder, the piston rod of the hydraulic cylinder extends and pushes the first welding sliding component towards the second welding sliding component; similarly, the second driving device also pushes the second welding sliding component to move. During their relative movement, welding part one and welding part two gradually approach each other and eventually come into contact. During this contact, due to the pressure applied by the driving devices and the characteristics of the welding material after heating, such as softening and melting, the welding materials of welding part one and welding part two fuse and diffuse with each other, forming a strong welded connection after cooling, thus completing the welding process of non-metallic materials.

[0069] Optionally, the bottom of the welding table frame 3 is provided with a first foot 1 and a first universal wheel 2. Multiple first feet 1 are telescopically and evenly arranged at the bottom edge of the welding table frame 3, and a first universal wheel 2 is provided between adjacent first feet 1. The feet are used to adjust the level of the welding table frame 3, and the first universal wheel 2 is used to move the position of the welding table frame 3.

[0070] Multiple retractable first feet are evenly distributed along the bottom edge of the welding table, allowing for precise adjustment of its level. Ensuring the welding table is level is crucial during welding operations, especially for non-metallic materials requiring high precision. A level welding table maintains a stable relative position for the parts being welded, preventing displacement or angular deviations due to table tilt, thus effectively improving welding quality and yield.

[0071] The casters positioned between adjacent base plates provide excellent mobility for the welding table. Within the workshop or work area, when the welding equipment needs to be moved according to different production layouts or workflows, the casters facilitate quick and easy relocation. Compared to traditional fixed welding equipment, this caster design significantly improves equipment mobility, reduces manpower and time costs associated with equipment handling, and increases production efficiency. Furthermore, when the equipment is not in use, it can be easily moved to a suitable storage location, saving space.

[0072] Optionally, the heating plate 31 can be a rectangular or circular plate. Rectangular heating plates are suitable for welding non-metallic parts with relatively regular shapes, straight edges, or large flat surfaces. For example, when welding long strips of plastic sheet splicing or rectangular composite material components, the rectangular heating plate can have a larger contact area with the parts being welded, ensuring that heat is evenly distributed in the welding area, making the welding process more stable and efficient.

[0073] Optionally, a fixed pulley 38 is provided in the middle of the crossbeam 43, and a winding reel is provided on the output shaft of the motor 36. One end of the flexible chain is wound on the winding reel, and the other end of the flexible chain is fixed to the fixed pulley 38. The motor can precisely wind and unwind the flexible chain by controlling the rotation of the winding reel. Due to the buffering effect of the fixed pulley, the flexible chain can stably pull the crossbeam, thereby driving the lifting device components such as the scissor arm connected to the crossbeam to move, realizing the smooth lifting and lowering of the heating plate. This flexible chain is usually a steel wire rope 37, but it can also be a nylon rope, etc.

[0074] Example 2

[0075] like Figures 1 to 13As shown, a non-metallic material welding equipment includes all the contents of Embodiment 1. In addition, the lifting device includes a lifting base plate 34, a lifting table 33, two scissor arms 39, a crossbeam 43, a motor 36, and a flexible chain.

[0076] The heating plate 31 is fixed to the top of the lifting table 33 by the fixing bracket 32. The side wall of the fixing bracket 32 ​​is provided with a concave limiting groove. The two fixing brackets 32 are arranged opposite to each other at both ends of the lifting table 33. The two ends of the heating plate 31 are respectively engaged in the concave limiting groove. Then, the heating plate is firmly fixed in the limiting groove by screws passing through the concave limiting groove.

[0077] A sliding groove 44 is provided at one end of the lifting base plate 34 along its length direction. A motor 36 is installed at one end of the bottom surface of the lifting table 33. The lifting table 33 and the lifting base plate 34 are arranged parallel to each other vertically and spaced apart. The motor 36 is located at the end away from the sliding groove 44.

[0078] Two scissor arms 39 are arranged parallel to each other and spaced apart. The bottom of the two scissor arms 39 is fixedly connected to each other by a crossbeam 43. The top of the scissor arms 39 is rotatably connected to the bottom surface of the lifting table 33. One bottom end of the scissor arms 39 is provided with a slide rod, which is slidably disposed in a slide groove 44. The other bottom end of the scissor arms 39 is rotatably connected to the bottom end of the lifting base plate 34 away from the slide groove 44. The motor 36 is located between the two scissor arms 39. The output end of the motor 36 is connected to the middle of the crossbeam 43 through a flexible chain.

[0079] The bottom of the lifting base plate 34 is provided with a second foot 42 and a second universal wheel 41. Multiple second feet 42 are telescopically and evenly arranged at the bottom edge of the lifting base plate 34. A second universal wheel 41 is provided between adjacent second feet 42. The feet are used to adjust the level of the lifting base plate 34, and the first universal wheel 2 is used to move the position of the lifting base plate 34.

[0080] It should be noted that: the electric motor acts as the power source, and the rotation of its output shaft drives the winding reel to rotate. When the winding reel winds up the flexible chain, it pulls the crossbeam upward. Since the second lifting legs at the bottom of the two scissor arms are fixedly connected via the crossbeam, and the sliding rod at the bottom of the second lifting leg of one of the scissor arms slides within the channel steel groove and is positioned by the screw bearing 40, the angle between the scissor arms increases when the crossbeam rises, i.e., the scissor arms unfold. The top of the scissor arms is rotatably connected to the bottom surface of the lifting table, and the bottom of the first lifting leg is rotatably connected to the lifting base plate via a male and female pin. As the scissor arms unfold, the lifting table rises relative to the lifting base plate, thereby raising the heating plate.

[0081] When the motor reverses direction and the winding reel releases the flexible chain, the crossbeam descends, the scissor arm angle decreases, the lifting table descends, and the heating plate descends as well. By controlling the forward and reverse rotation of the motor, as well as its speed and duration, the lifting height and speed of the heating plate can be precisely controlled to meet the positional requirements of different welding processes.

[0082] The scissor lift arm 39 includes a first lifting leg 391, a second lifting leg 392, and a pivot rod 393. The first lifting leg 391 and the second lifting leg 392 have the same structure. The first lifting leg 391 is located outside the second lifting leg 392. The middle part of the first lifting leg 391 and the middle part of the second lifting leg 392 are rotatably connected by the pivot rod 393. The first lifting leg 391 and the second lifting leg 392 are arranged in a cross shape. The top of the first lifting leg 391 and the second lifting leg 392 are connected to the lifting table 3. The bottom surface of the 3 is rotatably connected, and the bottom of the second lifting leg 392 of the two scissor arms 39 is fixedly connected by the crossbeam 43. The bottom end of the second lifting leg 392 is provided with a sliding rod, which is arranged parallel to the crossbeam 43. A matching sliding groove 44 is opened on one end of the lifting base plate 34. The sliding groove 44 is a channel steel sliding groove. A screw bearing 40 is provided in the sliding groove 44. The end of the sliding rod away from the scissor arm 39 is axially arranged in the screw bearing 40. The bottom end of the first lifting leg 391 is rotatably connected to the other end of the lifting base plate 34 by a male and female nail 35.

[0083] Example 3

[0084] like Figures 1 to 13 As shown, a non-metallic material welding device includes all the contents of Embodiment 2. Except that the first welding sliding assembly and the second welding sliding assembly have the same structure, usually L-shaped, and are arranged in a mirror image. Both the first welding sliding assembly and the second welding sliding assembly include a sliding platform 21 and a guide rail 8. Multiple guide rails 8 are arranged horizontally along the length of the welding table frame 3. Multiple universal balls 27 are evenly provided at the bottom of the sliding platform 21. The universal balls 27 and the guide rail 8 slide against each other. The first driving device and the end of the sliding platform 21 of the first welding sliding assembly away from the strip opening 301 are in contact with each other. The second driving device and the end of the sliding platform 21 of the second welding sliding assembly away from the strip opening 301 are in contact with each other.

[0085] Meanwhile, a reinforcing angle 22 is provided at the edge of the sliding platform 21 away from the strip opening 301. The bottom of the reinforcing angle 22 is fixedly connected to the bottom of the sliding platform 21, and the side plate of the reinforcing angle 22 is fixedly connected to the side plate of the sliding platform 21. The cross section of the reinforcing angle is triangular, which serves to strengthen the outer corner of the sliding platform 21.

[0086] The sliding platform 21 includes a transverse plate, a longitudinal plate, an extended top plate 28, and a fixed reinforcing plate 29. One end of the transverse plate is connected to the bottom of the longitudinal plate, and the two are arranged vertically. The longitudinal plate is arranged along the height direction of the welding table frame 3. The fixed reinforcing plate 29 is arranged on the top of the transverse plate and parallel to the longitudinal plate. Multiple extended top plates 28 are arranged horizontally between the fixed reinforcing plate 29 and the longitudinal plate. The longitudinal plate abuts against the output end of the first driving device or the second driving device.

[0087] Example 4

[0088] like Figures 1 to 13 As shown, a non-metallic material welding device includes all the contents of Embodiment 3. Except that the first driving device and the second driving device have the same structure and are arranged in a mirror image. Both the first driving device and the second driving device include a hydraulic cylinder 11, a hydraulic baffle 9 and a flange 10. The hydraulic baffle 9 is fixedly installed at the end of the welding table 3 away from the strip opening 301, and the hydraulic baffle 9 and the strip opening 301 are arranged in parallel. The hydraulic cylinder 11 is vertically installed on the hydraulic baffle 9. The output end of the hydraulic cylinder 11 is provided with a flange 10. The flange 10 of the hydraulic cylinder 11 of the first driving device abuts against the first welding sliding assembly, and the flange 10 of the hydraulic cylinder 11 of the second driving device abuts against the second welding sliding assembly.

[0089] Example 5

[0090] like Figures 1 to 13 As shown, a non-metallic material welding device includes all the contents of Embodiment 4, and in addition, it includes a fixing device. The fixing device is arranged on the first welding sliding assembly or the second welding sliding assembly along the width direction of the welding table 3. The fixing device is used to fix the parts carried on the first welding sliding assembly or the second welding sliding assembly.

[0091] The fixing device includes two side pressure brackets 25, a pneumatic cylinder 24, and a hand crank screw 23. The two side pressure brackets 25 are arranged opposite each other at both ends of the first welding sliding assembly or the second welding sliding assembly. The outer wall of the part abuts against the inner wall of the side pressure bracket 25. The top of one side pressure bracket 25 is provided with a hand crank screw 23, and the output end of the hand crank screw 23 presses against one side of the top surface of the part. The top of the other side pressure bracket 25 is provided with a pneumatic cylinder 24, and the output end of the pneumatic cylinder 24 presses against the other side of the top surface of the part. The pneumatic cylinder 24 and the hand crank screw 23 are both arranged along the height direction of the welding table 3.

[0092] Two lateral pressure brackets, positioned opposite each other at both ends of the welding sliding assembly, abut against the outer walls of the part from both sides, restricting the horizontal displacement of the part in the width direction of the welding table. This ensures that the part remains in a precise, preset position throughout the preparation stage before welding and during the welding process, preventing positional shifts caused by unexpected external forces, such as slight equipment vibrations or minor collisions during operation.

[0093] The hand-cranked screw and pneumatic cylinder located at the top of the side-pressure bracket press against the part from both sides of its top surface, further restricting its vertical movement and securing it firmly to the welding sliding assembly from all directions. This multi-directional fixing method is crucial for ensuring welding accuracy, especially when welding high-precision non-metallic materials. It ensures the accurate positioning of the weld joint, thereby improving welding quality and reducing welding defects.

[0094] The hand-cranked lead screw is adjustable, allowing operators to manually rotate it to change the extension length of its output end, accommodating welded parts of varying thicknesses or heights. For parts with irregular shapes or varying dimensions, adjusting the hand-cranked lead screw ensures it can always be coordinated with a pneumatic cylinder, achieving reliable fixation of the part.

[0095] The pneumatic cylinder can control the output pressure by adjusting parameters such as air pressure according to actual needs. This ensures that sufficient fixing force is applied to the parts to keep them stable during welding, while also preventing damage to the parts due to excessive pressure. It is especially suitable for soft or pressure-sensitive non-metallic material parts, thereby enhancing the applicability of the entire fixing device to different types of parts.

[0096] During welding, both the minute forces generated by thermal expansion and contraction during heating and the external forces generated when the drive device pushes the welding sliding assembly to bring the parts closer together can cause the parts to wobble. This fixing device, through the coordinated action of the side pressure bracket, hand-cranked screw, and pneumatic cylinder, firmly secures the parts, ensuring they remain stable throughout the entire welding process, including heating and butt joint pressing, preventing wobble or misalignment. This contributes to smooth welding operations and ensures consistent weld quality.

[0097] When two welding parts are brought together by the drive device for welding, the fixing device firmly holds the parts in place, ensuring that the welding pressure is evenly distributed across the weld joint. This prevents pressure concentration in localized areas or uneven pressure due to movement or displacement of the parts, guaranteeing that the welding materials fuse fully under uniform pressure, thus improving the strength of the weld joint and the overall weld quality.

[0098] Operators can easily and precisely adjust the extension length of the hand crank screw by hand according to the actual situation, thereby quickly achieving fine-tuning of the fixation degree of the parts. This manual fine-tuning function is very practical and convenient for welding tasks with high fixation accuracy requirements and small differences in part dimensions. Operators can flexibly achieve the best fixation state of the parts based on their own experience and actual observation.

[0099] Although the present invention has been described in detail above with general descriptions and specific embodiments, some modifications or improvements can be made to it, which will be obvious to those skilled in the art. Therefore, all such modifications or improvements made without departing from the spirit of the present invention fall within the scope of protection claimed by the present invention.

[0100] The terms such as "upper," "lower," "left," "right," and "middle" used in this specification are merely for clarity of description and are not intended to limit the scope of implementation of this utility model. Any changes or adjustments to their relative relationships, without substantially altering the technical content, shall also be considered within the scope of implementation of this utility model.

Claims

1. A lifting device for a heating plate in a non-metallic material welding equipment, wherein the heating plate (31) is fixed on the lifting device, characterized in that, The lifting device includes a lifting base plate (34), a lifting tabletop (33), two scissor arms (39), a crossbeam (43), a motor (36), and a flexible chain; The lifting base plate (34) has a groove (44) along its length at one end. The top surface of the lifting table (33) is connected to the bottom end of the heating plate (31). The motor (36) is installed at one end of the bottom surface of the lifting table (33). The lifting table (33) and the lifting base plate (34) are arranged parallel to each other vertically and at intervals. The motor (36) is located at the end away from the groove (44). Two scissor arms (39) are arranged parallel to each other and spaced apart. The bottoms of the two scissor arms (39) are fixedly connected to each other by the crossbeam (43). The top of the scissor arms (39) is rotatably connected to the bottom surface of the lifting table (33). One bottom end of the scissor arms (39) is provided with a slide rod, which is slidably disposed in the slide groove (44). The other bottom end of the scissor arms (39) is rotatably connected to the bottom end of the lifting base plate (34) away from the slide groove (44). The motor (36) is located between the two scissor arms (39). The output end of the motor (36) is connected to the middle part of the crossbeam (43) through the flexible chain.

2. The lifting device for the heating plate of a non-metallic material welding equipment according to claim 1, characterized in that, The scissor arm (39) includes a first lifting leg (391), a second lifting leg (392), and a pivot rod (393). The middle part of the first lifting leg (391) and the middle part of the second lifting leg (392) are rotatably connected by the pivot rod (393), and the first lifting leg (391) and the second lifting leg (392) are arranged in a cross shape. The top of the first lifting leg (391) and the second lifting leg (392) are rotatably connected to the bottom surface of the lifting table (33). The bottom of the second lifting leg (392) of the two scissor arms (39) is fixedly connected to each other by the crossbeam (43). The bottom end of the second lifting leg (392) is connected to one end of the slide rod. The other end of the slide rod is slidably disposed in the slide groove (44). The bottom end of the first lifting leg (391) is rotatably connected to the other end of the lifting base plate (34) by a male and female nail.

3. The lifting device for the heating plate of a non-metallic material welding equipment according to claim 2, characterized in that, It also includes a screw bearing (40), which is disposed in the slide groove (44), and the end of the slide rod away from the second lifting leg (392) is axially disposed in the screw bearing (40).

4. The lifting device for the heating plate of a non-metallic material welding equipment according to claim 1, characterized in that, It also includes a fixing frame (32), the side wall of which is provided with a concave limiting groove. The two fixing frames (32) are arranged opposite to each other at both ends of the lifting table (33), and the two ends of the heating plate (31) are respectively engaged in the concave limiting groove.

5. The lifting device for the heating plate of a non-metallic material welding equipment according to claim 2, characterized in that, The first lifting leg (391) and the second lifting leg (392) have the same structure.

6. The lifting device for the heating plate of a non-metallic material welding equipment according to claim 1, characterized in that, The bottom of the lifting base plate (34) is provided with a second foot (42) and a second universal wheel (41). Multiple second feet (42) are telescopically and evenly arranged at the bottom edge of the lifting base plate (34). A second universal wheel (41) is provided between adjacent second feet (42). The second feet (42) are used to adjust the level of the lifting base plate (34), and the second universal wheel (41) is used to move the position of the lifting base plate (34).

7. The lifting device for the heating plate of a non-metallic material welding equipment according to claim 2, characterized in that, The slide bar and the crossbeam (43) are arranged in parallel.

8. The lifting device for the heating plate of a non-metallic material welding equipment according to claim 1, characterized in that, The flexible chain is a steel wire rope (37) or a nylon rope.

9. The lifting device for the heating plate of a non-metallic material welding equipment according to claim 1, characterized in that, The heating plate (31) is a rectangular plate or a circular plate.

10. The lifting device for the heating plate of a non-metallic material welding equipment according to claim 1, characterized in that, The crossbeam (43) is provided with a fixed pulley (38) in the middle, and the output shaft of the motor (36) is provided with a winding reel. One end of the flexible chain is wound on the winding reel, and the other end of the flexible chain is fixed on the fixed pulley (38).

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