Plastic product welding machine

Abstract

The utility model relates to a plastic product welding machine which comprises a machine table, a support, an upper die assembly and a lower die assembly. The upper die assembly comprises a lifting driving piece arranged on the support and an upper die head arranged on an output shaft of the lifting driving piece. The lower die assembly comprises a sliding rail arranged on the machine table, a sliding base arranged on the sliding rail in a sliding mode, a lower die head arranged on the sliding base and a horizontal driving part used for driving the sliding base to slide, the sliding rail extends to the outside of the machine table, and the sliding base can slide to the position under the upper die head or the outside of the machine table. According to the utility model, the sliding rail is designed to extend to the outside of the machine table, so that both loading and unloading can be operated at a position far away from the lower part of the upper die head, thereby preventing the upper die head from being pressed down in advance due to failure or misoperation of induction equipment, and effectively improving the use safety of the equipment.

Description

Technical Field

[0001] The utility model relates to the field of welding machines, and in particular to a plastic product welding machine. Background Art

[0002] A welding machine is a device used to weld two parts together. Currently, high-frequency welding machines and ultrasonic welding machines are the most commonly used. Ultrasonic welding machines transmit ultrasonic waves through a welding head to the plastic parts, causing intense friction between the two plastic surfaces. Frictional heat melts the plastic surfaces, completing the bonding process.

[0003] Most existing ultrasonic welding machines require the use of upper and lower dies. Two products are manually assembled and placed on the lower die before ultrasonic welding. Because the upper and lower dies are typically pre-assembled, with the lower die positioned directly below the upper die, manual operation requires placing your hand underneath the upper die when welding the products. This can cause the upper die to drop prematurely due to sensor failure or misoperation, potentially causing the operator to injure their fingers before reacting, compromising operator safety and posing a safety hazard. Utility Model Content

[0004] In view of this, the utility model provides a plastic product welding machine that can safely load and assemble materials at a position away from directly below the upper die head.

[0005] The purpose of the utility model is achieved through the following technical solutions:

[0006] A plastic product welding machine includes a machine platform, a bracket, an upper mold assembly and a lower mold assembly, wherein the bracket is arranged on the machine platform; the upper mold assembly includes a lifting drive component arranged on the bracket, and an upper mold head arranged on the output shaft of the lifting drive component; the lower mold assembly includes a slide rail arranged on the machine platform, a slide seat sliding on the slide rail, a lower mold head arranged on the slide seat, and a horizontal drive component for driving the slide seat to slide, the slide rail extends to the outside of the machine platform, and the slide seat can slide to the bottom of the upper mold head or to the outside of the machine platform.

[0007] In the above technical solution, by designing the slide rail to extend to the outside of the machine, the slide can drive the lower die head to slide to the bottom of the upper die head for welding operations, and can also slide to the outside of the machine to load and unload products. Therefore, whether loading or unloading, the operation can be performed at a position away from the bottom of the upper die head, thereby avoiding the premature downward pressure of the upper die head caused by failure of the sensing equipment or misoperation, so that the operator can always operate in a safe position, effectively improving the safety of equipment use.

[0008] Furthermore, extending the slide rails to the outside of the machine not only facilitates product loading and unloading, providing ample space for loading and unloading, but also optimizes the spatial layout of the work area. When the slide is moved outside the machine, the work area below the upper mold assembly becomes more open, making it easier to perform other auxiliary operations or maintenance.

[0009] Optionally, in a possible implementation, the slide rails are two parallel and spaced apart, the corresponding ends of the two slide rails are connected by a clamping plate, and the slide seat is provided with two sliding blocks corresponding to the two slide rails respectively.

[0010] The above technical solution utilizes two parallel, spaced-apart rails, significantly improving the stability of the entire sliding system compared to a single rail. These rails evenly distribute the load, reducing vibration and noise caused by uneven loading, while also increasing the load-bearing capacity and service life of the overall structure. The clamping plate connecting the two ends of the rail acts as a stop, preventing the slide from dislodging from the rail.

[0011] Optionally, in a possible implementation, the horizontal driving member includes a screw, a transmission member and a motor, the screw is rotatably mounted on the two clamping plates, the motor is arranged on one side of the machine and drives the rotation of the screw through the transmission member, and the slide is provided with a driving block threadedly connected to the screw.

[0012] In this technical solution, the motor drives the lead screw, which, in conjunction with a drive block threadedly connected to the lead screw, enables precise control and adjustment of the slide's position. The lead screw is directly mounted on two pallets, eliminating the need for additional support structures. This makes the overall horizontal drive design more compact and helps save space. Furthermore, due to the threaded connection between the lead screw and the drive block, the slide maintains its position within a certain range when the motor stops, providing a certain degree of self-locking functionality.

[0013] Optionally, in a possible implementation, the transmission member includes a driving wheel, a driven wheel and a transmission belt, the driving wheel is arranged on the output shaft of the motor, the driven wheel is arranged at one end of the screw rod, and the transmission belt is connected to the driving wheel and the driven wheel.

[0014] In this technical solution, a belt is used to connect the driving and driven pulleys, achieving flexible transmission. Compared to a rigid connection, this transmission method can effectively absorb and mitigate vibration and impact generated by motor operation, protecting the lead screw and slide assembly from damage, while also reducing noise and improving the overall operational smoothness of the equipment.

[0015] Optionally, in a possible implementation, the motor is fixed to one side of the machine platform through a support plate.

[0016] In the above technical solution, the motor is fixed to one side of the machine through a support plate. This fixing method makes the installation of the motor more stable and reliable, and makes the installation process of the motor simple and quick. When the motor needs to be maintained or replaced, the motor can be easily removed by simply removing the fixings on the support plate, reducing the maintenance difficulty and time cost.

[0017] Optionally, in a possible implementation, the bracket includes a horizontal fixed plate located above the machine platform and a plurality of pillars for supporting the horizontal fixed plate, and the lifting drive member is provided on the horizontal fixed plate.

[0018] In the above technical solution, a stable support structure can be formed by supporting the horizontal fixed plate with multiple pillars, which effectively disperses the weight of the lifting drive components and their loads, enhances the structural stability of the entire system, prevents shaking or deformation caused by excessive load or vibration, and ensures the long-term stable operation of the equipment.

[0019] Optionally, in a possible implementation, the output shaft of the lifting drive member passes through the horizontal fixed plate, the upper die head is connected to the output shaft of the lifting drive member through a mounting plate, and a plurality of guide rods are provided on the upper end surface of the mounting plate, and the guide rods are movably inserted into the horizontal fixed plate.

[0020] In this technical solution, the output shaft of the lifting drive unit directly connects to the upper die head through the horizontal fixed plate. This direct drive reduces transmission links and improves the stability and responsiveness of the lifting process. Furthermore, a guide rod on the mounting plate is movably inserted into the horizontal fixed plate, providing guidance and support, further enhancing stability during the lifting process and preventing the upper die head from shifting or shaking during the lifting process.

[0021] Optionally, in a possible implementation, a positioning block is provided on the machine platform, a positioning hole is provided on the positioning block, a positioning column is provided on the lower end surface of the mounting plate, and the positioning column can be inserted into the positioning hole.

[0022] In the above technical solution, the positioning block and its positioning hole arranged on the machine cooperate with the positioning column on the lower end face of the mounting plate to realize the precise positioning of the mounting plate on the machine, so that when the upper die head is pressed down, it is first positioned by the positioning column and the positioning hole to ensure that the upper die head and the lower die head can be accurately docked.

[0023] Optionally, in a possible implementation, the positioning hole includes a tapered hole portion and a straight hole portion, and the tapered hole portion is located at an upper end of the straight hole portion.

[0024] The above design plays a good guiding role. When the positioning post is inserted into the positioning hole, the tapered hole portion can guide the positioning post to gradually align and smoothly enter the straight hole portion, thereby ensuring the accuracy of the alignment.

[0025] Optionally, in a possible implementation, an adjusting rod is provided on the positioning block, the adjusting rod passes through the positioning block and is threadedly connected to the positioning block, one end of the adjusting rod is provided with a handle, and the other end is provided with a top block, and the top block can abut against the lower die head.

[0026] In the above technical solution, by providing an adjustment rod on the positioning block and threading it into the positioning block, flexible positioning of the lower die head is achieved. During installation or commissioning, the operator can use the lifting block to limit the lower die head to prevent further movement, thus serving as a positioning mechanism. The position of the lower die head can also be fine-tuned according to actual needs to ensure its precise alignment with the upper die head, thereby improving the processing accuracy and adaptability of the equipment.

[0027] Compared with the prior art, the beneficial effects of the present invention are:

[0028] The plastic product welding machine of the present invention is designed to extend the slide rail to the outside of the machine, and enables the slide seat to drive the lower die head to slide on the slide rail, so that the position relationship between the upper die head and the lower die head can be flexibly adjusted. When sliding to the bottom of the upper die head, the welding operation can be carried out, and when sliding to the outside of the machine, the product can be loaded and unloaded. This can effectively prevent the operator from placing his hands under the upper die head, so that the operator can always operate in a safe position, effectively improving the safety of equipment use. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the following is a brief introduction to the drawings required for use in the embodiments. It should be understood that the following drawings only show certain embodiments of the present application and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without creative work.

[0030] Figure 1 It is a schematic diagram of the overall structure of an embodiment.

[0031] Figure 2 FIG. 1 is a top view of a machine according to an embodiment.

[0032] Figure 3 for Figure 2 Cross-sectional view in the AA direction.

[0033] Figure markings: 1-machine; 2-bracket; 21-horizontal fixing plate; 22-pillar; 3-upper mold assembly; 31-lifting drive member; 32-upper mold head; 33-mounting plate; 331-guide rod; 332-positioning column; 4-lower mold assembly; 41-guide rail; 411-clamping plate; 42-slide seat; 421-slider; 422-drive block; 43-lower mold head; 44-horizontal drive member; 441-screw rod; 442-transmission member; 4421-driving wheel; 4422-driven wheel; 4423-transmission belt; 443-motor; 45-support plate; 5-positioning block; 51-positioning hole; 6-adjusting rod; 61-handle; 62-top block. DETAILED DESCRIPTION

[0034] To make the objectives, technical solutions, and advantages of the embodiments of the present application more clear, the technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the accompanying drawings of the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Generally, the components of the embodiments of the present application described and shown in the drawings herein can be arranged and designed in various different configurations.

[0035] Therefore, the following detailed description of the embodiments of the present application provided in the accompanying drawings is not intended to limit the scope of the present application for protection, but merely represents selected embodiments of the present application. All other embodiments obtained by persons of ordinary skill in the art based on the embodiments in the present application without creative work are within the scope of protection of the present application.

[0036] Please refer to Figure 1-Figure 3 .

[0037] The present embodiment provides a plastic product welding machine, including a machine 1, a bracket 2, an upper mold assembly 3 and a lower mold assembly 4. The upper end surface of the machine 1 is a horizontal workbench. The bracket 2 is arranged on the machine 1 and located on the upper end surface of the machine 1; the upper mold assembly 3 includes a lifting drive member 31 arranged on the bracket 2, and an upper mold head 32 arranged on the output shaft of the lifting drive member 31, wherein the lifting drive member 31 is a cylinder, which is fixed by bolts and inverted on the bracket 2; the lower mold assembly 4 includes a slide rail arranged on the machine 1, a slide 42 sliding on the slide rail, a lower mold head 43 arranged on the slide 42, and a horizontal drive member 44 for driving the slide 42 to slide. The slide rail is located on the upper end surface of the machine 1 and extends to the outside of the machine 1. The slide 42 can slide to the bottom of the upper mold head 32 or to the outside of the machine 1.

[0038] In this embodiment, the slide rail is designed to extend to the outside of the machine 1. The slide 42 can drive the lower die head 43 to slide to the bottom of the upper die head 32 for welding operations, and can also slide to the outside of the machine 1 to load and unload products. Therefore, whether loading or unloading, the operation can be performed at a position away from the bottom of the upper die head 32, thereby avoiding the upper die head 32 from being pressed down prematurely due to failure of the sensing equipment or misoperation, so that the operator can always operate in a safe position, effectively improving the safety of equipment use.

[0039] Furthermore, extending the slide rails to the exterior of the machine 1 not only facilitates product loading and unloading, providing ample space for loading and unloading, but also optimizes the spatial layout of the work area. When the slide 42 is moved to the exterior of the machine 1, the work area below the upper mold assembly 3 becomes more open, making it easier to perform other auxiliary operations or maintenance.

[0040] In this embodiment, there are two parallel slide rails that are spaced apart from each other. The two ends of the two slide rails are connected by a clamping plate 411, that is, the two slide rails and the two clamping plates 411 together form a rectangular structure. The slide seat 42 is provided with two sliders 421 corresponding to the two slide rails respectively, and the two sliders 421 are slidably clamped on the two slide rails respectively.

[0041] The use of two parallel, spaced-apart rails significantly improves the stability of the entire sliding system compared to a single rail. These rails evenly distribute the load, reducing vibration and noise caused by uneven loading, while also increasing the overall structure's load-bearing capacity and service life. The clamping plate 411 connecting the two ends of the rail acts as a stop, preventing the slide 42 from dislodging from the rail.

[0042] The horizontal driving member 44 of this embodiment includes a screw rod 441, a transmission member 442 and a motor 443. The screw rod 441 is rotatably installed on the two clamping plates 411. The screw rod 441 is parallel to the two slide rails and is located between the two slide rails. The motor 443 is arranged on one side of the machine 1 and drives the rotation of the screw rod 441 through the transmission member 442. A driving block 422 is provided on the slide 42, which is threadedly connected to the screw rod 441. The screw rod 441 passes through the driving block 422. When the screw rod 441 rotates, it drives the driving block 422 to move along the screw rod 441, thereby driving the slide 42 to move along the slide rail.

[0043] In this embodiment, motor 443 drives screw 441 to rotate, which, in conjunction with drive block 422 on slide 42, is threadedly connected to screw 441, enabling precise control and adjustment of the position of slide 42. Screw 441 is directly rotatably mounted on two clamping plates 411, eliminating the need for additional support structures. This makes the design of the entire horizontal drive member 44 more compact, saving space in the device. Furthermore, due to the threaded connection between screw 441 and drive block 422, when motor 443 stops operating, slide 42 can maintain its position within a certain range, providing a certain degree of self-locking functionality.

[0044] In this embodiment, the transmission member 442 includes a driving wheel 4421, a driven wheel 4422, and a transmission belt 4423. The driving wheel 4421 is mounted on the output shaft of the motor 443, the driven wheel 4422 is mounted on one end of the screw rod 441, and the transmission belt 4423 connects the driving wheel 4421 and the driven wheel 4422. One end of the screw rod 441 passes through the clamping plate 411 and extends a distance to allow the driven wheel 4422 to be mounted.

[0045] This embodiment utilizes a transmission belt 4423 to connect the driving pulley 4421 and the driven pulley 4422, achieving flexible transmission. Compared to a rigid connection, this transmission method can effectively absorb and mitigate the vibration and impact generated by the operation of the motor 443, protecting the screw rod 441 and the slide 42 assembly from damage, while also reducing noise generation and improving the overall operational smoothness of the device. Of course, as an alternative, the transmission member 442 can also utilize a gear drive or sprocket drive structure for transmission.

[0046] It should be noted that motor 443 is fixed to one side of the machine 1 via a support plate 45. Support plate 45 is horizontal and perpendicular to the side of the machine 1, and triangular ribs can be added to the bottom of support plate 45 to improve its stability. This fixing method makes the installation of motor 443 more stable and reliable, making the installation process of motor 443 simple and quick. When maintenance or replacement of motor 443 is required, motor 443 can be easily removed by simply removing the fixings on support plate 45, reducing maintenance difficulty and time cost.

[0047] In this embodiment, the bracket 2 includes a horizontal fixed plate 21 positioned above the platform 1 and a plurality of struts 22 for supporting the horizontal fixed plate 21. The lifting drive 31 is disposed on the horizontal fixed plate 21. The multiple struts 22 supporting the horizontal fixed plate 21 form a stable support structure, effectively distributing the weight of the lifting drive 31 and its load, enhancing the structural stability of the entire system, preventing shaking or deformation caused by excessive load or vibration, and ensuring the long-term stable operation of the equipment.

[0048] Specifically, the output shaft of the lifting drive member 31 passes through the horizontal fixed plate 21, and the upper die head 32 is connected to the output shaft of the lifting drive member 31 via a mounting plate 33. The upper end surface of the mounting plate 33 is provided with a plurality of guide rods 331, which are movably inserted into the horizontal fixed plate 21. The upper die head 32 can be fixed to the mounting plate 33 by bolts and other parts. The connection between the output shaft of the lifting drive member 31, the mounting plate 33, and the upper die head 32 is conventional in the prior art, such as welding, bolt locking, etc.

[0049] In this embodiment, the output shaft of the lifting drive member 31 directly passes through the horizontal fixed plate 21 and connects to the upper die head 32. This direct drive reduces the number of transmission links and improves the stability and response speed of the lifting process. Furthermore, a guide rod 331 provided on the mounting plate 33 is movably inserted into the horizontal fixed plate 21, providing guidance and support, further enhancing stability during the lifting process and preventing the upper die head 32 from shifting or shaking during the lifting process.

[0050] In this embodiment, the machine 1 is provided with a positioning block 5 having a positioning hole 51 defined therein. The lower end surface of the mounting plate 33 is provided with a positioning post 332, which is insertable into the positioning hole 51. The positioning block 5 and its positioning hole 51 provided on the machine 1 cooperate with the positioning post 332 on the lower end surface of the mounting plate 33 to achieve precise positioning of the mounting plate 33 on the machine 1. This ensures that when the upper die 32 is pressed downward, it is first positioned by the positioning post 332 and the positioning hole 51, ensuring that the upper die 32 and the lower die 43 can be precisely aligned.

[0051] It should be noted that the positioning hole 51 includes a tapered portion and a straight portion, with the tapered portion located above the straight portion. This design provides a good guide. When inserting the positioning post 332 into the positioning hole 51, the tapered portion guides the positioning post 332 to gradually align and smoothly enter the straight portion, thereby ensuring accurate alignment.

[0052] In this embodiment, an adjustment rod 6 is provided on the positioning block 5. The adjustment rod 6 passes through the positioning block 5 and is threadedly connected to the positioning block 5. One end of the adjustment rod 6 is provided with a handle 61, and the other end is provided with a top block 62. The top block 62 can abut against the lower die head 43. By providing the adjustment rod 6 on the positioning block 5 and threading it with the positioning block 5, flexible positioning of the lower die head 43 is achieved. During installation or debugging, the operator can limit the lower die head 43 through the top block 62 to prevent further movement of the lower die head 43, that is, to play a positioning role. The position of the lower die head 43 can also be fine-tuned according to actual needs to ensure its precise alignment with the upper die head 32, thereby improving the processing accuracy and adaptability of the equipment.

[0053] In the description of the present invention, it should be understood that terms such as "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0054] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of the technical features being referred to. Thus, a feature specified as "first" or "second" may explicitly or implicitly include one or more of such features. In the description of this utility model, "plurality" means two or more, unless otherwise specifically defined.

[0055] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A plastic product welding machine, characterized in that: It includes a machine platform, a bracket, an upper mold assembly and a lower mold assembly, wherein the bracket is arranged on the machine platform; the upper mold assembly includes a lifting drive component arranged on the bracket, and an upper mold head arranged on the output shaft of the lifting drive component; the lower mold assembly includes a slide rail arranged on the machine platform, a slide seat sliding on the slide rail, a lower mold head arranged on the slide seat, and a horizontal drive component for driving the slide seat to slide, the slide rail extends to the outside of the machine platform, and the slide seat can slide to the bottom of the upper mold head or to the outside of the machine platform.

2. The plastic product welding machine according to claim 1, characterized in that: The slide rails are two parallel and spaced apart, and the two ends of the two slide rails are connected by a clamping plate. The slide seat is provided with two sliding blocks corresponding to the two slide rails respectively.

3. The plastic product welding machine according to claim 2, characterized in that: The horizontal driving member includes a screw rod, a transmission member and a motor. The screw rod is rotatably mounted on the two clamping plates. The motor is arranged on one side of the machine and drives the rotation of the screw rod through the transmission member. The slide is provided with a driving block threadedly connected to the screw rod.

4. The plastic product welding machine according to claim 3, characterized in that: The transmission member includes a driving wheel, a driven wheel and a transmission belt. The driving wheel is arranged on the output shaft of the motor, the driven wheel is arranged at one end of the screw rod, and the transmission belt is connected to the driving wheel and the driven wheel.

5. The plastic product welding machine according to claim 3, characterized in that: The motor is fixed to one side of the machine platform through a support plate.

6. The plastic product welding machine according to claim 1, characterized in that: The bracket includes a horizontal fixing plate located above the machine platform and a plurality of pillars for supporting the horizontal fixing plate, and the lifting driving component is arranged on the horizontal fixing plate.

7. The plastic product welding machine according to claim 6, characterized in that: The output shaft of the lifting drive member passes through the horizontal fixed plate, and the upper die head is connected to the output shaft of the lifting drive member through a mounting plate. The upper end surface of the mounting plate is provided with a plurality of guide rods, and the guide rods are movably inserted on the horizontal fixed plate.

8. The plastic product welding machine according to claim 7, characterized in that: A positioning block is provided on the machine platform, a positioning hole is provided on the positioning block, and a positioning column is provided on the lower end surface of the mounting plate, and the positioning column can be inserted into the positioning hole.

9. The plastic product welding machine according to claim 8, characterized in that: The positioning hole includes a tapered hole portion and a straight hole portion, and the tapered hole portion is located at an upper end of the straight hole portion.

10. The plastic product welding machine according to claim 8, characterized in that: The positioning block is provided with an adjusting rod, which passes through the positioning block and is threadedly connected to the positioning block. One end of the adjusting rod is provided with a handle and the other end is provided with a top block, and the top block can abut against the lower die head.

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