Device for welding plastic part for testing firmness performance

Abstract

The utility model relates to a device for welding a plastic part for testing firmness in the field of hot-pressing testing. The device comprises a main frame, a safety sealing device, a first motor assembly, a second motor assembly, a first pressing head, a second pressing head, a first electric heater, a second electric heater, a moving seat, a sliding rail and a control host, a control cable is arranged in the main frame; the control host is connected with the first motor assembly, the second motor assembly, the first pressing head, the second pressing head, the first electric heater, the second electric heater and the moving seat through the control cable. The first pressure head and the moving seat are respectively provided with a product to-be-tested station. The device is used for welding the plastic parts for testing the firmness performance, thermoplastic parameters can be customized, a plurality of to-be-tested plastic parts with different parameters can be provided for a user in a short time, and therefore the client can be conveniently helped to find the most suitable thermoplastic parameters.

Description

Technical Field

[0001] The utility model relates to the field of product hot press testing, and particularly relates to a device for welding plastic parts for testing firmness performance. Background Technique

[0002] Hot plate welding places a heating plate between two plastic parts. When the workpieces are in close contact with the heating plate, the plastic starts to melt. After a preset heating time has passed, the plastic on the surface of the workpieces will reach a certain degree of melting. At this time, the workpieces are separated to both sides, the heating plate is removed, and then the two workpieces are joined together. When a certain welding time and welding depth are reached, the entire welding process is completed.

[0003] This application proposes a device specifically for welding plastic parts for testing firmness performance. By quickly adjusting the thermoplastic parameters, multiple plastic parts with different parameters can be welded, facilitating the user to quickly conduct firmness performance tests and thus find the most suitable thermoplastic parameters. Content of the Utility Model

[0004] In order to solve the above technical problems, a device for welding plastic parts for testing firmness performance is disclosed in the utility model. The technical solution of the utility model is implemented as follows:

[0005] A device for welding plastic parts for testing firmness performance includes a main frame, a safety enclosure device, a first motor assembly, a second motor assembly, a first pressure head, a second pressure head, a first electric heater, a second electric heater, a moving seat, a slide rail, and a control host;

[0006] Among them, the safety enclosure device is connected to the main frame and encloses the first motor assembly, the second motor assembly, the first pressure head, the second pressure head, the first electric heater, the second electric heater, and the moving seat;

[0007] The first motor assembly and the second motor assembly are installed on the upper surface of the main frame. The first pressure head and the second pressure head are respectively slidably installed on the first motor assembly and the second motor assembly. The first electric heater is installed on the upper surface of the moving seat. The second electric heater is installed on the lower surface of the second pressure head. The slide rail is arranged on the upper surface of the main frame. The moving seat is slidably arranged on the slide rail;

[0008] A control cable is arranged inside the main frame;

[0009] The control host is connected to the first motor assembly, the second motor assembly, the first pressure head, the second pressure head, the first electric heater, the second electric heater, the moving seat, and the safety door on the safety enclosure device through the control cable;

[0010] Product testing stations are provided on both the first indenter and the moving seat.

[0011] The control host referred to in the present utility model is a common control device in the art. In the prior art, any control host capable of achieving control effects can be used in the present utility model.

[0012] Preferably, a touch screen is provided on the control host.

[0013] Preferably, the main frame is made of stainless steel.

[0014] Preferably, both the first motor assembly and the second motor assembly adopt servo motors.

[0015] Preferably, Teflon coatings are sprayed on the surfaces of the first electric heater and the second electric heater.

[0016] Preferably, the height of the device for welding plastic parts for testing the firmness performance is 2m - 2.5m.

[0017] The present utility model is a semi-automatic welding device, which is simple and convenient to operate. Moreover, the entire thermoplastic process is carried out within a safety enclosure. After the product upper cover and the lower test plate are respectively installed on the product testing stations below the first indenter and above the moving seat, the welding can be remotely controlled with one key through the control host.

[0018] No manual operation is required during the welding process. The first indenter drives the product upper cover to press down and make thermal contact with the first electric heater below, and the second indenter drives the second electric heater to press down and make thermal contact with the lower test plate below. The thermal contacts are carried out simultaneously. When the set time is reached, the moving seat slides to the left, and the first indenter drives the product upper cover to press down and contact the lower test plate on the moving seat below. After the welding is completed, the safety door automatically opens.

[0019] This application can quickly adjust the thermoplastic parameters to weld plastic parts with different parameters, facilitating the user to quickly conduct firmness performance tests, thereby finding the most suitable thermoplastic parameters. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the following drawings are only one embodiment of the present utility model. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0021] Among them, the same components are denoted by the same reference numerals. It should be noted that the terms "front", "rear", "left", "right", "upper" and "lower" used in the following description refer to the directions in the drawings, and the terms "bottom surface" and "top surface", "inner" and "outer" refer to the directions towards or away from the geometric center of a specific component, respectively.

[0022] Figure 1 FIG. is a structural diagram of an embodiment of a device for welding plastic parts for testing the firmness performance, and this figure is designated as the abstract drawing;

[0023] Figure 2 FIG. is a structural diagram of an embodiment of a device for welding plastic parts for testing the firmness performance after removing the safety closure device.

[0024] In the above-mentioned drawings, the meanings of the respective reference numerals are as follows:

[0025] 1, main frame;

[0026] 2, safety closure device;

[0027] 3, first servo motor assembly;

[0028] 4, second servo motor assembly;

[0029] 5, first indenter;

[0030] 6, second indenter;

[0031] 7, first electric heater;

[0032] 8, second electric heater;

[0033] 9, moving seat;

[0034] 10, slide rail. Detailed implementation manners

[0035] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without making creative efforts belong to the scope of protection of the present utility model.

[0036] Unless otherwise defined, all technical and scientific terms used in this utility model have the same meaning as commonly understood by those skilled in the technical field to which this utility model belongs; the terms used in the specific implementation manners are only for the purpose of describing specific embodiments and are not intended to limit this utility model; the terms "including" and "having" and any variations thereof in the specification and claims of this utility model and the above accompanying drawings are intended to cover non-exclusive inclusion.

[0037] In the description of the specific implementation manners of this utility model, technical terms such as "first" and "second" are only used to distinguish different objects and cannot be understood as indicating or implying relative importance or implicitly indicating the quantity, specific order or primary-secondary relationship of the indicated technical features. In the description of the embodiments of this utility model, "a plurality of" means more than two unless otherwise specifically defined.

[0038] When "embodiment" is mentioned in this utility model, it means that the specific features, structures or characteristics described in connection with the embodiment can be included in at least one embodiment of this utility model. The phrase appears at various positions in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment mutually exclusive with other embodiments. Those skilled in the art explicitly and implicitly understand that the embodiments described in this utility model can be combined with other embodiments.

[0039] The purpose of this utility model is to provide a device for welding plastic parts for testing the firmness performance. The device for welding plastic parts for testing the firmness performance includes a main frame, a safety enclosure device, a first motor assembly, a second motor assembly, a first pressing head, a second pressing head, a first electric heater, a second electric heater, a moving seat, a slide rail and a control host;

[0040] Wherein, the safety enclosure device is connected to the main frame and encloses the first motor assembly, the second motor assembly, the first pressing head, the second pressing head, the first electric heater, the second electric heater and the moving seat;

[0041] The first motor assembly and the second motor assembly are installed on the upper surface of the main frame, the first pressing head and the second pressing head are respectively slidably installed on the first motor assembly and the second motor assembly, the first electric heater is installed on the upper surface of the moving seat, the second electric heater is installed on the lower surface of the second pressing head, the slide rail is arranged on the upper surface of the main frame, and the moving seat is slidably arranged on the slide rail;

[0042] Control cables are arranged inside the main frame;

[0043] The control host is connected to the first motor assembly, the second motor assembly, the first pressing head, the second pressing head, the first electric heater, the second electric heater, the moving seat, and the safety door on the safety closing device through the control cable.

[0044] Product testing stations are provided on both the first pressing head and the moving seat.

[0045] In some embodiments, a touch screen is provided on the control host.

[0046] It should be noted that the touch screen, as a common and excellent control medium, is widely used in the control hosts of various automated and semi-automated controls. However, in fact, even if the present utility model uses a traditional button-type control mode, similar technical effects can still be achieved. Therefore, the touch screen is only an example and does not represent a limitation to the present utility model. Since the control host is a common device in the art, the present application does not separately provide the drawings of the control host and the touch screen. Any control host that can achieve the control effect can be used in the present utility model.

[0047] In some embodiments, the main frame is made of stainless steel. It should be noted that stainless steel, as a common material, has high structural strength, moderate cost, good heat resistance and corrosion resistance, and is therefore used in the present utility model. However, stainless steel is only an example of the material of the main frame and does not represent a limitation to the present utility model.

[0048] In some embodiments, both the first motor assembly and the second motor assembly use servo motors.

[0049] It should be noted that the servo motor is a common and well-performing motor, which is widely used in the power equipment of various automated and semi-automated controls. However, in fact, even if other motors are selected, the present utility model can still achieve similar technical effects. Therefore, the servo motor is only an example and does not represent a limitation to the present utility model.

[0050] In some embodiments, the surfaces of the first electric heater and the second electric heater are sprayed with Teflon coatings.

[0051] The Teflon coating has heat resistance, chemical inertness, excellent insulation stability and low friction, and can protect the electric heater and the workpiece to be tested in contact with the electric heater to a certain extent.

[0052] Hereinafter, the technical solutions of the present utility model will be described in more detail with reference to the drawings and embodiments.

[0053] It should be noted that this embodiment is only an example and does not represent a limitation to the present utility model.

[0054] Embodiment

[0055] In a specific embodiment, as Figure 1 and Figure 2 shown, a device for welding plastic parts for testing the firmness performance includes a main frame 1, a safety enclosure device 2, a first servo motor assembly 3, a second servo motor assembly 4, a first indenter 5, a second indenter 6, a first electric heater 7, a second electric heater 8, a moving seat 9, a slide rail 10 and a control host; wherein, the safety enclosure device 2 is connected to the main frame 1 and encloses the first servo motor assembly 3, the second servo motor assembly 4, the first indenter 5, the second indenter 6, the first electric heater 7, the second electric heater 8 and the moving seat 9; the first servo motor assembly 3 and the second servo motor assembly 4 are installed on the upper surface of the main frame 1, the first indenter 5 and the second indenter 6 are respectively slidably installed on the first servo motor assembly 3 and the second servo motor assembly 4, the first electric heater 7 is installed on the upper surface of the moving seat 9, the second electric heater 8 is installed on the lower surface of the second indenter 6, the slide rail 10 is arranged on the upper surface of the main frame 1, and the moving seat 9 is slidably arranged on the slide rail 10; control cables are arranged inside the main frame 1; the control host is connected to the first servo motor assembly 3, the second servo motor assembly 4, the first indenter 5, the second indenter 6, the first electric heater 7, the second electric heater 8, the moving seat 9 and the safety door on the safety enclosure device 2 through the control cables; product to-be-tested workstations are arranged on both the first indenter 5 and the moving seat 9. A touch screen is arranged on the control host.

[0056] The design parameters of this embodiment are as follows:

[0057] Total height: > 2 meters;

[0058] The designed maximum heating temperature of the first electric heater 7: 300 °C;

[0059] The designed maximum heating temperature of the second electric heater 8: 300 °C

[0060] The heating temperature used by the first electric heater 7: 250 °C;

[0061] The heating temperature used by the second electric heater 8: 250 °C

[0062] The temperature error of the first electric heater 7 and the second electric heater 8 in use: ±5 °C;

[0063] The designed maximum pressure value: 400 N - 500 N;

[0064] The generally used pressure value: 250 N;

[0065] The design of the product to-be-tested workstations on the first indenter 5 and the moving seat 9 is: 300 mm * 300 mm

[0066] The maximum height after the installation of the object upper cover: > 400 mm;

[0067] The stroke of the servo motors in the first servo motor assembly 3 and the second servo motor: > 500 mm;

[0068] The first electric heater 7 and the second electric heater 8 are metal parts with Teflon sprayed on the surface.

[0069] The operation process of this embodiment is as follows:

[0070] First, set the welding parameters of the product to be tested on the control host.

[0071] The pressure of the first pressure head 5 on the upper cover of the product is 200 N, the pressure of the second pressure head 6 on the lower test plate is 200 N, the heating temperature of the first electric heater 7 and the second electric heater 8 is 250 °C, and the bonding pressure between the upper cover of the product and the lower test plate is 100 N.

[0072] Next, perform the operation.

[0073] Manually install the upper cover of the product on the first pressure head 5, and at the same time place the lower test plate on the moving seat 9. After fixing, close the safety door.

[0074] Press the start button on the control host. The first electric heater 7 and the second electric heater 8 are heated to the test temperature of 250 °C. The first servo motor assembly 3 and the second servo motor assembly 4 press down. The first pressure head 5 presses the lower upper cover of the product tightly against the first electric heater 7 with a force of 200 N. When the product melts, the pressure less than 200 N will be automatically supplemented to 200 N, and the hot stamping pressure holding time is 11 seconds; the second pressure head 6 presses the second electric heater 8 tightly against the upper surface of the lower test plate on the moving seat 9 with a force of 100 N. When the product melts, the pressure less than 100 N will be automatically supplemented to 100 N, and the hot stamping pressure holding time is 10 seconds; after the heating process is completed, the first servo motor assembly 3 and the second servo motor assembly 4 lift the first pressure head 5 and the second pressure head 6 upward at the same time. The moving seat 9 moves the lower test plate below the second pressure head 6 to directly below the first pressure head 5, and then the first servo motor assembly 3 moves the upper cover of the product on the first pressure head 5 downward and bonds it with the lower test plate on the moving seat 9, and maintains a pressure of 250 N for 50 seconds. After 50 seconds, the welding is completed.

[0075] After the welding is completed, wait until the temperatures of the first electric heater 7 and the second electric heater 8 drop below 30 °C, then open the safety door, take out the product to be tested that has been welded from the device, and then take it to the test device for a firmness test.

[0076] Adjust the first pressure head 5 to retract upward.

[0077] This embodiment is a semi-automatic welding device. When clamping the product upper cover and the product lower plate, manual clamping is required. During the entire welding process, the safety door is locked by an electric control safety lock. When the temperature drops to the set temperature and the welding process is completed, the electric control safety lock automatically unlocks.

[0078] Sources of some components used in this embodiment:

[0079] PLC control host: Omron / PDIN.

[0080] Touch screen of the control host: Omron / Touch WIN.

[0081] Since the usage and installation methods of the control host and the touch screen are conventional technical means in the art and are not the technical points of the present invention, the specific structure of the product is not shown in the drawings. However, those skilled in the art should know the source, structure, and specific operation and usage methods of the product.

[0082] Sensors for sensing pressure on the first press head 5 and the second press head 6: Omron. Configuring pressure sensors on the press heads is common knowledge in the art, so it is not shown in the present invention.

[0083] Servo motors of the first servo motor assembly 3 and the second servo motor assembly 4: Delta.

[0084] It should be noted that the above are only the preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. An apparatus for welding plastic parts for testing firmness performance, characterized in that, It includes a main frame, a safety enclosure, a first motor assembly, a second motor assembly, a first press head, a second press head, a first electric heater, a second electric heater, a moving seat, a slide rail, and a control host; Among them, the safety enclosure is connected to the main frame and encloses the first motor assembly, the second motor assembly, the first press head, the second press head, the first electric heater, the second electric heater, and the moving seat; The first motor assembly and the second motor assembly are installed on the upper surface of the main frame. The first press head and the second press head are respectively slidably installed on the first motor assembly and the second motor assembly. The first electric heater is installed on the upper surface of the moving seat. The second electric heater is installed on the lower surface of the second press head. The slide rail is arranged on the upper surface of the main frame. The moving seat is slidably arranged on the slide rail; Control cables are arranged inside the main frame; The control host is connected to the first motor assembly, the second motor assembly, the first press head, the second press head, the first electric heater, the second electric heater, the moving seat, and the safety door on the safety enclosure through the control cables; Product testing stations are arranged on both the first press head and the moving seat.

2. The device for welding plastic parts for testing the firmness performance according to claim 1, characterized in that, A touch screen is arranged on the control host.

3. The device for welding plastic parts for testing the firmness performance according to claim 1, wherein, The main frame is made of stainless steel.

4. The device for welding plastic parts for testing the firmness performance according to claim 1, characterized in that, Both the first motor assembly and the second motor assembly adopt servo motors.

5. The device for welding plastic parts for testing the firmness performance according to claim 1, characterized in that, Teflon coatings are sprayed on the surfaces of the first electric heater and the second electric heater.

6. The device for welding plastic parts for testing the firmness performance according to claim 1, characterized in that, The height of the device for welding plastic parts for testing the firmness performance is 2m - 2.5m.

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