PETG film testing device

Abstract

The utility model discloses a PETG (polyethylene terephthalate glycol) film testing device, which relates to the technical field of testing devices and particularly comprises a linear driving mechanism fixedly connected to the top of a base, one side of the linear driving mechanism is fixedly connected with a supporting seat, an installation column body is arranged on the supporting seat in a sliding and penetrating manner, and at least one side surface of the top of the installation column body is connected with a strip-shaped seat. Pressure sensors are arranged on the supporting seats below the strip-shaped seats, the two ends of the strip-shaped seats are arranged on the pressure sensors, and connecting pipes are connected to the bottom of the mounting column body and the top of the base; limiting grooves are formed in the side wall of the connecting plate and the top of the positioning seat, a V-shaped elastic piece is connected between the two limiting grooves, a clamping block is fixedly connected to one side of the upper end of the connecting plate, and clamping grooves are symmetrically formed in the portion, located in the connecting pipe, of the connector. According to the utility model, rapid clamping and dismounting of the connector are realized, the mounting stability of the connector is improved, and the practicability of the device is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of testing devices, in particular to a PETG film testing device. Background Art

[0002] PETG film is a transparent plastic, which is a non-crystalline copolyester with good viscosity, transparency, color, and chemical resistance. It is widely used in the market of plates, sheets, high-performance shrink films and profiles.

[0003] During the production of PETG film, it is necessary to conduct a tensile test to observe whether the preset tensile strength is reached. The clamps used in the equipment for testing the tensile strength of PETG film are divided into an upper clamp and a lower clamp. The upper clamp is installed on the equipment and moves up and down with the equipment, so that the distance between the upper and lower clamps increases, thereby pulling up the film clamped between the clamps, and the tensile force generated is monitored in real time, but the existing clamps are not easy to disassemble. To this end, we proposed a PETG film testing device. Utility Model Content

[0004] In view of the disadvantage that the existing PETG film testing equipment is not convenient for convenient disassembly and assembly of the upper clamp, which brings inconvenience to the user in disassembly and maintenance, the utility model provides a PETG film testing device, which has the advantages of easy disassembly, replacement and maintenance of the chuck, and solves the problems raised in the above background technology.

[0005] In order to achieve the above objectives, the present invention is implemented through the following technical solutions:

[0006] A PETG film testing device is designed, comprising a linear drive mechanism fixedly connected to the top of a base, a support seat fixedly connected to one side of the linear drive mechanism, a mounting column slidingly penetrating the support seat, a strip seat connected to at least one side of the top of the mounting column, a pressure sensor is provided on the support seat below the strip seat, both ends of the strip seat are placed on the pressure sensor, and a connecting pipe is connected to the bottom of the mounting column and the top of the base;

[0007] The two connecting tubes are coaxially arranged and connected to a clamping mechanism on one side thereof, one end of the clamping mechanism is fixedly connected to a connector, a positioning seat is symmetrically connected to the outer wall of the connecting tube, a connecting plate is rotatably connected to the outer side of the positioning seat, and a limiting groove is provided on the side wall of the connecting plate and the top of the positioning seat, and a V-shaped spring piece is connected between the two limiting grooves;

[0008] A clamping block is fixedly connected to one side of the upper end of the connecting plate, a clamping groove is symmetrically provided on the connecting head located in the connecting pipe, and a through groove is provided at a corresponding position of the connecting pipe, and the clamping block passes through the through groove and extends into the clamping groove;

[0009] It also includes a control cabinet fixedly connected to the top of the base. The control cabinet is equipped with a controller. The pressure sensor and the linear drive mechanism are connected to the controller through wires.

[0010] Preferably, the clamping mechanism includes a chuck connected to the connecting head, the chuck is a U-shaped structure with its opening facing downward, a clamping plate is symmetrically arranged inside the chuck, an adjusting screw is rotatably connected to one side of the clamping plate, the other end of the adjusting screw passes through the chuck and is threadedly connected to the chuck, a slider is fixedly connected to the top of the clamping plate, and a sliding groove cooperating with the slider is opened at the top of the chuck.

[0011] Preferably, grooves are provided on adjacent sides of the splints, and the cross-section of the grooves is an S-shaped structure.

[0012] Preferably, the linear drive mechanism comprises a mounting box body vertically connected to the top of the base and having an opening on one side, a transmission screw is rotatably connected in the mounting box body, the bottom of the transmission screw penetrates the base and is fixedly connected to the drive motor, the drive motor is mounted on the base, and the drive motor is connected to the controller;

[0013] One side of the support seat extends into the installation box body through an opening, a transmission screw penetrates the support seat and is threadedly connected thereto, guide rods are symmetrically arranged on both sides of the transmission screw, the guide rods penetrate the support seat and are fixedly connected to the inner wall of the installation box body.

[0014] Preferably, a plane is provided on one side of the connector, and a locking screw is threadedly connected to the connecting pipe, and the end of the locking screw abuts against the plane.

[0015] Preferably, side plates are symmetrically connected to both sides of the connecting plate, and the side plates are rotatably connected to the outer wall of the positioning seat through a rotating shaft.

[0016] Preferably, a distance sensor is provided on one side of the bottom of the support base, and the distance sensor is connected to the controller via a wire.

[0017] Preferably, the controller is connected to a display and operation buttons via wires, respectively, and the display and operation buttons are mounted on a control cabinet.

[0018] Compared with the prior art, the utility model can move the card block out of the card slot by pressing the bottom of the two connecting plates. At the same time, the connecting plates are loosened, and the elastic force of the V-shaped spring pieces can drive the card block to move into the card slot, thereby realizing the rapid clamping and disassembly of the connecting head. At the same time, with the further fixing effect of the locking screw, the stability of the connecting head installation is effectively improved, and it is also convenient for users to install and disassemble the chuck. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the structure of the utility model.

[0020] Figure 2It is a schematic diagram of the bottom structure of the utility model.

[0021] Figure 3 This is a cross-sectional view of the connection pipe and the connection head of the utility model Figure 1 .

[0022] Figure 4 This is a cross-sectional view of the connection pipe and the connection head of the utility model Figure 2 .

[0023] In the figure: 1. Installation box; 2. Transmission screw; 3. Support seat; 4. Installation column; 5. Connecting pipe; 6. Adjusting screw; 7. Clamp; 8. Base; 9. Locking screw; 10. Chuck; 11. Connecting plate; 12. Control cabinet; 13. Drive motor; 14. Guide rod; 15. Block; 16. V-shaped spring; 17. Side plate; 18. Positioning seat; 19. Connecting head; 20. Limiting groove; 21. Slide groove; 22. Card slot; 23. Through groove; 24. Recess; 25. Slider; 26. Bar seat; 27. Pressure sensor; 28. Distance sensor. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0025] See also Figures 1 to 4 The utility model provides a technical solution: a PETG film testing device, comprising a linear drive mechanism fixedly connected to the top of a base 8, and a support seat 3 is fixedly connected to one side of the linear drive mechanism. Figure 1 , 2 As shown, the linear drive mechanism includes a mounting box body 1 which is vertically connected to the top of the base 8 and has an opening on one side. A transmission screw 2 is rotatably connected inside the mounting box body 1. The bottom of the transmission screw 2 passes through the base 8 and is fixedly connected to the drive motor 13. The drive motor 13 is connected to the controller; one side of the support seat 3 extends into the mounting box body 1 through the opening, and the transmission screw 2 passes through the support seat 3 and is threadedly connected thereto. In order to improve the sliding stability of the support seat 3, guide rods 14 are symmetrically provided on both sides of the transmission screw 2. The guide rods 14 pass through the support seat 3 and are fixedly connected to the inner wall of the mounting box body 1. The drive motor 13 drives the transmission screw 2 to rotate, so that the support seat 3 can be moved up and down, thereby realizing displacement control during testing, and the structure is simple and easy to operate.

[0026] like Figure 1 , 2As shown, a mounting column 4 is slidably provided on the support seat 3, and a strip seat 26 is connected to at least one side of the top of the mounting column 4. There are two strip seats 26 and they are symmetrically arranged. A pressure sensor 27 is provided on the support seat 3 below the strip seat 26. Both ends of the strip seat 26 are placed on the pressure sensor 27. The bottom of the mounting column 4 and the top of the base 8 are connected to a connecting pipe 5.

[0027] The utility model also includes a control cabinet 12 fixedly connected to the top of the base 8. A controller is arranged in the control cabinet 12. The controller is a PLC logic controller, a control mainboard or a host. The pressure sensor and the linear drive mechanism are connected to the controller through wires.

[0028] like Figure 3 , 4 As shown, two connecting tubes 5 are coaxially arranged and connected to a clamping mechanism on one side thereof, one end of the clamping mechanism is fixedly connected to a connector 19, the clamping mechanism comprises a clamping head 10 connected to the connector 19, the clamping head 10 is a U-shaped structure with an opening facing downward, a clamping plate 7 is symmetrically arranged in the clamping head 10, a groove 24 is arranged on one side thereof, and the cross section of the groove 24 is an S-shaped structure, the S-shaped groove 24 increases the contact area between the side of the clamping plate 7 and the PETG film, one side of the clamping plate 7 is rotatably connected to an adjusting screw 6, and the adjusting screw 6 is adjusted to adjust the clamping plate 7. The other end of the screw rod 6 passes through the chuck 10 and is threadedly connected thereto. A slider 25 is fixedly connected to the top of the clamp 7. A slide groove 21 cooperating with the slider 25 is provided in the top of the chuck 10. During actual testing, the end of the PETG film is placed between the two clamps 7. The clamps 7 can be controlled to move by rotating the adjusting screw rod 6 to clamp the PETG film. Rubber pads are provided on the adjacent sides of the two clamps 7 to increase the friction between the PETG film and the clamp, thereby further improving the stability of clamping.

[0029] like Figure 3 , 4 As shown, a positioning seat 18 is symmetrically connected to the outer wall of the connecting tube 5, and a connecting plate 11 is rotatably connected to the outer side of the positioning seat 18. Side plates 17 are symmetrically connected to the two sides of the connecting plate 11. The side plates 17 are rotatably connected to the outer wall of the positioning seat 18 through a rotating shaft. The side wall of the connecting plate 11 and the top of the positioning seat 18 are provided with limiting grooves 20, and a V-shaped spring piece 16 is connected between the two limiting grooves 20; a clamping block 15 is fixedly connected to one side of the upper end of the connecting plate 11, and a clamping groove 22 is symmetrically provided on the connecting head 19 located in the connecting tube 5, and a through groove 23 is provided at the corresponding position of the connecting tube 5, and the clamping block 15 passes through the through groove 23 and extends into the clamping groove 22.

[0030] In summary, in the PETG film testing device, when the chuck 10 needs to be replaced, the user holds the chuck 10 and presses the bottoms of the two connecting plates 11. The connecting plates 11 rotate along the rotating shaft, which can drive the clamping block 15 to move out of the clamping groove 22, so that the chuck 10 can be quickly disassembled. When installing, the connecting head 19 is pushed into the connecting tube 5. The user loosens the connecting plate 11. Under the elastic force of the V-shaped spring sheet 16, the clamping block 15 can be driven to move into the clamping groove 22, thereby achieving the clamping of the connecting head 19. At the same time, in order to further improve the stability of the installation of the connecting head 19, a plane (such as Figure 3 and Figure 4 As shown), a locking screw 9 is threadedly connected to the connecting pipe 5, and the end of the locking screw 9 is against the plane. Under the re-fixing effect of the locking screw 9, the stability of the installation of the connecting head 19 can be further improved.

[0031] Based on the above embodiment, further optimization can be performed. In order to facilitate the observation of the change in stretching distance, a distance sensor 28 can be provided on one side of the bottom of the support seat 3. The distance sensor 28 is connected to the controller through a wire. The distance sensor 28 is an ultrasonic distance sensor or a laser distance measuring sensor. When the film is stretched, the stretching length can be directly measured.

[0032] Based on the above embodiment, further optimization can be performed, where the controller is connected to a display and operation buttons through wires, respectively, the display and operation buttons are installed on a control cabinet, the operation buttons include a reset button and a button for controlling the start and stop of the drive motor, etc., and the monitored tension value is displayed through the display.

[0033] In the description of the present utility model, it should be noted that the orientation or position relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inside", "outside", etc. is based on the orientation or position relationship shown in the drawings, which is only for the convenience of describing the present utility model and simplifying the description, and does 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 of the present utility model; the terms "first", "second", and "third" are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance. In addition, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances. Moreover, the terms "comprises," "comprising," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that includes a list of elements includes not only those elements but also other elements not expressly listed, or also includes elements inherent to such process, method, article, or apparatus.

[0034] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A PETG film testing device, characterized in that: The invention comprises a linear drive mechanism fixedly connected to the top of a base (8), a support seat (3) being fixedly connected to one side of the linear drive mechanism, a mounting column (4) being slidably penetrated on the support seat (3), a strip seat (26) being connected to at least one side of the top of the mounting column (4), a pressure sensor (27) being provided on the support seat (3) below the strip seat (26), both ends of the strip seat (26) being placed on the pressure sensor (27), and a connecting pipe (5) being connected to the bottom of the mounting column (4) and the top of the base (8); The two connecting tubes (5) are coaxially arranged and connected to a clamping mechanism on one side thereof; a connector (19) is fixedly connected to one end of the clamping mechanism; a positioning seat (18) is symmetrically connected to the outer wall of the connecting tube (5); a connecting plate (11) is rotatably connected to the outer side of the positioning seat (18); a limiting groove (20) is provided on the side wall of the connecting plate (11) and the top of the positioning seat (18); and a V-shaped spring sheet (16) is connected between the two limiting grooves (20); A clamping block (15) is fixedly connected to one side of the upper end of the connecting plate (11); a clamping groove (22) is symmetrically provided on a connecting head (19) located in the connecting pipe (5); a through groove (23) is provided at a corresponding position of the connecting pipe (5); the clamping block (15) passes through the through groove (23) and extends into the clamping groove (22); It also includes a control cabinet (12) fixedly connected to the top of the base (8), wherein a controller is arranged in the control cabinet (12), and the pressure sensor (27) and the linear drive mechanism are connected to the controller via wires.

2. A PETG film testing device according to claim 1, characterized in that: The clamping mechanism comprises a clamp (10) connected to a connecting head (19), the clamp (10) being a U-shaped structure with an opening facing downward, a clamp (7) being symmetrically arranged inside the clamp (10), an adjusting screw (6) being rotatably connected to one side of the clamp (7), the other end of the adjusting screw (6) passing through the clamp (10) and being threadedly connected thereto, a sliding block (25) being fixedly connected to the top of the clamp (7), and a sliding groove (21) cooperating with the sliding block (25) being arranged inside the top of the clamp (10).

3. A PETG film testing device according to claim 2, characterized in that: A groove (24) is provided on one side of the clamping plate (7) that is close to each other, and the cross section of the groove (24) is an S-shaped structure.

4. A PETG film testing device according to claim 1, characterized in that: The linear drive mechanism comprises a mounting box body (1) vertically connected to the top of a base (8) and having an opening on one side, a transmission screw (2) rotatably connected inside the mounting box body (1), the bottom of the transmission screw (2) penetrates the base (8) and is fixedly connected to a drive motor (13), the drive motor (13) is mounted on the base (8), and the drive motor (13) is connected to a controller; One side of the support seat (3) extends into the installation box body (1) through an opening, the transmission screw (2) passes through the support seat (3) and is threadedly connected thereto, guide rods (14) are symmetrically provided on both sides of the transmission screw (2), and the guide rods (14) pass through the support seat (3) and are fixedly connected to the inner wall of the installation box body (1).

5. A PETG film testing device according to claim 1, characterized in that: A plane is provided on one side of the connector (19), and a locking screw (9) is threadedly connected to the connecting pipe (5), and the end of the locking screw (9) abuts against the plane.

6. A PETG film testing device according to claim 1, characterized in that: Side plates (17) are symmetrically connected to both sides of the connecting plate (11), and the side plates (17) are rotatably connected to the outer wall of the positioning seat (18) via a rotating shaft.

7. A PETG film testing device according to claim 1, characterized in that: A distance sensor (28) is provided on one side of the bottom of the support seat (3), and the distance sensor (28) is connected to the controller via a wire.

8. A PETG film testing device according to claim 1, characterized in that: The controller is connected to a display and operation buttons via wires, respectively; the display and operation buttons are mounted on a control cabinet (12).

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