PET (Polyethylene Terephthalate) foam core material welding seam detection device

Abstract

The utility model discloses a PET (Polyethylene Terephthalate) foam core material welding seam detection device, which comprises a base, a left supporting plate and a right supporting plate which can do symmetrical movement back and forth and a driving mechanism for driving the left supporting plate and the right supporting plate to do symmetrical movement are arranged on the base, a left clamping groove for clamping one end of a PET foam core material is hinged on the left supporting plate, and a right clamping groove for clamping the other end of the PET foam core material is hinged on the right supporting plate. A right clamping groove which is used for clamping the other end of the PET foam core material and is symmetrical to the left clamping groove is hinged to the right supporting plate, a light-emitting source is arranged on the base and located between the left clamping groove and the right clamping groove, and a light display plate is further arranged on the base. The utility model can solve the problems of large error and unreliability of the current PET foam core material welding seam inspection result, and can be widely applied to the field of PET foam core material quality inspection.

Description

Technical Field

[0001] The utility model relates to the field of PET foam core material quality detection, in particular to a PET foam core material weld detection device. Background Art

[0002] The main component of PET foam sheet is polyethylene terephthalate, commonly known as polyester resin. PET foam sheet has good heat resistance, mechanical strength and environmental protection performance, so it is widely used in construction, vehicles, roof insulation materials, sports equipment, wind energy and other fields. PET foam sheet is generally extruded by extrusion equipment. The cross-section of the extruded PET foam sheet cut perpendicular to the extrusion direction is a honeycomb-like structure. The mechanical properties are strongest along the extrusion direction. Therefore, in order to improve the strength of PET foam sheet, multiple pieces of extruded PET foam sheet are generally heat-sealed and stacked together to form a PET cubic block through heat-sealing equipment. The adjacent two pieces are hot-melted to form a weld, and the extrusion direction of each PET foam sheet is placed in the same direction. Then it is cut perpendicular to the extrusion direction and cut into PET foam core material (hereinafter referred to as core material) of the required thickness before use. In order to ensure the quality of the core material, it is necessary to ensure that each weld must be welded firmly and there must be no gaps. For this reason, each piece of cut core material must be inspected and qualified before leaving the factory.

[0003] At present, the inspection is mainly carried out by manually pressing the core material into an arc shape and observing whether the weld is firmly welded or there is a gap. However, this manual inspection method is not only inefficient but also inaccurate. Manual pressing cannot control the pressing force according to the thickness of the core material, nor can it control the pressing force of the core material of the same thickness to be the same. It is impossible to ensure that the arc of the bending of the core material of the same thickness is the same during the inspection. When the force is too small, it is difficult to break the weld that is not firmly welded and check it out. When the hand presses too hard, it is easy to break the weld that is firmly welded. Therefore, the inspection result is not stable and accurate, and cannot truly reflect the quality of welding. Therefore, in order to reduce manual inspection errors and improve inspection efficiency and accuracy, it is necessary to design a weld quality inspection device that can be applied to different cutting thicknesses. Utility Model Content

[0004] The utility model aims to provide a PET foam core material weld detection device to solve the problem that the pressing force and bending arc cannot be controlled when the weld of the existing PET foam core material is inspected by manual hands, resulting in inaccurate inspection results and low efficiency.

[0005] The technical solution adopted by the utility model to solve its technical problems is: a PET foam core material weld detection device, including a base, the base is provided with a left support plate and a right support plate which can perform symmetrical movement back and forth, and a driving mechanism which drives the left support plate and the right support plate to perform symmetrical movement, the left support plate is hinged with a left clamping groove for clamping one end of the PET foam core material, the right support plate is hinged with a right clamping groove for clamping the other end of the PET foam core material and symmetrical to the left clamping groove, a light source is provided on the base between the left clamping groove and the right clamping groove, and a light display board is also provided on the base.

[0006] In order to realize the symmetrical back and forth movement of the left support plate and the right support plate, the driving mechanism includes a driving groove arranged on the base, and a forward and reverse screw rod rotatably arranged in the driving groove. The driving groove is also provided with a driving motor for driving the forward and reverse screw rod to rotate. The forward and reverse screw rod is symmetrically provided with a left slider and a right slider that can perform symmetrical back and forth movement. The left support plate is fixed on the left slider, and the right support plate is fixed on the right slider.

[0007] In order to adapt to PET foam core materials of different thicknesses, a movable clamping plate and a clamping mechanism for driving the clamping plate to move are arranged in the left clamping slot, and a clamping plate and a clamping mechanism of the same structure are also arranged in the right clamping slot.

[0008] Preferably, the clamping mechanism includes a group of T-shaped clamping guide rods arranged on the clamping plate, a group of clamping guide holes adapted to the T-shaped clamping guide rods are arranged on the left clamping slot, a clamping spring is arranged between the left clamping slot and the clamping plate, and the clamping spring is inserted into the T-shaped clamping guide rod.

[0009] Furthermore, the lower ends of the left card slot and the right card slot are both provided with limit blocks to prevent the left card slot and the right card slot from rotating downward.

[0010] In order to facilitate the clamping of the PET foam core material, side openings are respectively arranged on the side walls on the same side of the left clamping slot and the right clamping slot, and arc-shaped introduction parts are arranged on the clamping plate and the side openings.

[0011] To ensure the stability of movement, a guide rod is provided on the base, and guide blocks are provided on the left support plate and the right support plate. The guide blocks are provided with guide holes adapted to the guide rod, and the guide blocks can be slidably inserted into the guide rod.

[0012] In order to facilitate the control of the bending curvature, a distance scale is provided on the guide rod.

[0013] Beneficial effects of the utility model: The utility model drives the left support plate and the right support plate to move toward each other through the driving mechanism, and at the same time, the left and right card slots on the left and right support plates move toward each other and rotate upward continuously, thereby driving the center of the PET foam core material mounted on the left and right card slots to arch upward into an arc shape, and automatically stop moving when the left and right card slots reach the set spacing according to the thickness of the PET foam core material, which can ensure that each piece of PET foam core material of the same thickness has the same bending arc when inspected, reduce inspection errors, not only ensure the reliability of the inspection results, but also improve inspection efficiency. At the same time, it is easy to observe whether there is light passing through the weld through the display board. In addition, by acting on the left and right card slots, the left and right card slots can be prevented from rotating downward under force, thereby ensuring that the PET foam core material in the slots is forced to arch upward and bend downward into an arc; by arranging movable clamping plates in the left and right card slots, PET foam core materials of different thicknesses can be clamped; the PET foam core material can also be easily and quickly clamped through the side opening to improve efficiency; the cooperation of the guide block and the guide rod can ensure the stability of the movement.

[0014] The present invention will be described in more detail below with reference to the accompanying drawings and embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a three-dimensional diagram of the utility model.

[0016] Figure 2 It is a three-dimensional diagram of the assembly structure of the driving mechanism, the left card slot and the right card slot in the utility model.

[0017] Figure 3 It is the front view of the utility model.

[0018] Figure 4 It is a top view of the assembly structure of the drive mechanism, the left card slot and the right card slot in the utility model.

[0019] Figure 5 It is a schematic diagram of the assembly of the left card slot in the utility model.

[0020] Figure 6 It is a schematic diagram of the assembly of the right card slot in the utility model.

[0021] Figure 7 It is a structural schematic diagram of the arc-shaped introduction part in the utility model.

[0022] Figure 8 It is a schematic diagram of the assembly of the clamping mechanism in the utility model. DETAILED DESCRIPTION

[0023] Examples, such as Figure 1-8As shown, a PET foam core weld detection device includes a base 1, on which a left support plate 2 and a right support plate 3 that can perform symmetrical movements back and forth are provided, and a driving mechanism 7 that drives the left support plate 2 and the right support plate 3 to perform symmetrical movements, the left support plate 2 is hinged with a left clamping slot 4 for clamping one end of the PET foam core material through a left rotating shaft 21, the right support plate 3 is hinged with a right clamping slot 5 for clamping the other end of the PET foam core material and symmetrical to the left clamping slot 4 through a right rotating shaft 31, a light source 6 is provided on the base 1 between the left clamping slot 4 and the right clamping slot 5, and the light source 6 is preferably a spherical lamp, and a display board 20 is also provided on the base 1. In actual operation, the PET foam core material is clamped by the left card slot 4 and the right card slot 5, and the left support plate 2 and the right support plate 3 are driven to move toward each other by the driving mechanism 7, and the left card slot 4 and the right card slot 5 are driven to move toward each other and stop at a set distance. When the left card slot 4 and the right card slot 5 move toward each other, they will be forced to slowly rotate upward around the axis, thereby driving the middle of the PET foam core material to slowly arch upward into an arc, and then observe whether there is light passing through the weld on the display board 20. If there is light passing through, it indicates that the weld of this piece of PET foam core material is unqualified, and if there is no light passing through, it indicates that the weld of this piece of PET foam core material is qualified. For the convenience of observation, the display board 20 is preferably black, and can also be a color that forms a sharp contrast with the light emitted by the light source 6.

[0024] In order to prevent the left card slot 4 and the right card slot 5 from rotating downward under force, limit blocks 10 are respectively arranged at the lower ends of the left card slot 4 and the right card slot 5, and the two limit blocks 10 are respectively fixed on the left support plate 2 and the right support plate 3, and the heights of the two limit blocks 10 are higher than the lower ends of the left card slot 4 and the right card slot 5. In the initial state, the limit blocks 10 make the left card slot 4 and the right card slot 5 in an upward tilted state, ensuring that the left card slot 4 and the right card slot 5 are forced to rotate upward, thereby driving the PET foam core material to be forced to arch upward into an arc.

[0025] To achieve driving, the driving mechanism 7 includes a driving slot 71 arranged on the base 1, a forward and reverse screw rod 72 rotatably arranged in the driving slot 71, and a driving motor 73 for driving the forward and reverse screw rod 72 to rotate is also arranged on the driving slot 71. The forward and reverse screw rod 72 includes a forward tooth portion 721 and a reverse tooth portion 722, a left slider 74 is arranged on the forward tooth portion 721, and a right slider 75 symmetrical to the left slider 74 is arranged on the reverse tooth portion 722, the left support plate 2 is fixed on the left slider 74, and the right support plate 3 is fixed on the right slider 75. The forward and reverse screw rod 72 is driven to rotate forward by the driving motor 73, thereby driving the left slider 74 and the right slider 75 to move toward each other; the forward and reverse screw rod 72 is driven to reverse by the driving motor 73, thereby driving the left slider 74 and the right slider 75 to move in the opposite direction.

[0026] In order to clamp PET foam core materials of different thicknesses, a movable clamping plate 8 and a clamping mechanism 41 for driving the clamping plate 8 are provided in the left card slot 4, and a clamping plate 8 and a clamping mechanism 41 of the same structure are also provided in the right card slot 5. The movable clamping plate 8 can clamp PET foam core materials of different thicknesses. The clamping mechanism 41 includes a group of T-shaped clamping guide rods 411 provided on the clamping plate 8, a group of clamping guide holes 42 adapted to the T-shaped clamping guide rods 411 are provided on the left card slot 4, and the T-shaped clamping guide rods 411 can slide in the clamping guide holes 42. A clamping spring 412 is provided between the left card slot 4 and the clamping plate 8, and the clamping spring 412 is sleeved on the T-shaped clamping guide rod 411. The PET foam core material is clamped by the clamping spring 412 acting on the clamping plate 8.

[0027] In order to facilitate the installation of the PET foam core material, the side walls of the left card slot 4 and the right card slot 5 are respectively provided with side openings 43, and the clamping plate 8 and the side openings 43 are provided with arc-shaped introduction portions 81. The PET foam core material can be easily and quickly installed in the card slot 4 and the right card slot 5 through the side openings 43.

[0028] In order to ensure the stable movement of the left card slot 4 and the right card slot 5, a guide rod 11 is provided on the base 1, and a guide block 9 is provided on the left support plate 2 and the right support plate 3. The guide block 9 is provided with a guide hole 91 adapted to the guide rod 11, and the guide block 9 can be slidably inserted into the guide rod 11. Through the cooperation of the guide block 9 and the guide rod 11, it can be ensured that the left card slot 4 and the right card slot 5 move in a straight line without being skewed by force. At the same time, in order to ensure that the same bending curvature is formed by force when testing PET foam core materials of the same thickness, that is, to accurately control the distance between the left card slot 4 and the right card slot 5, a distance scale 111 is provided on the guide rod 11.

[0029] The above is an exemplary description of the utility model in conjunction with the accompanying drawings. Obviously, the specific implementation of the utility model is not limited to the above-mentioned method. As long as various non-substantial improvements are made using the method concept and technical solution of the utility model; or the above concept and technical solution of the utility model are directly applied to other occasions without improvement, they are all within the protection scope of the utility model.

Claims

1. A PET foam core material weld detection device, comprising a base (1), characterized in that: The base (1) is provided with a left support plate (2) and a right support plate (3) which can perform symmetrical movement back and forth, and a driving mechanism (7) which drives the left support plate (2) and the right support plate (3) to perform symmetrical movement; the left support plate (2) is hingedly provided with a left clamping groove (4) for clamping one end of the PET foam core material; the right support plate (3) is hingedly provided with a right clamping groove (5) for clamping the other end of the PET foam core material and symmetrical to the left clamping groove (4); a light source (6) is provided on the base (1) between the left clamping groove (4) and the right clamping groove (5); and a display plate (20) is also provided on the base (1).

2. The PET foam core material weld detection device according to claim 1, characterized in that: The driving mechanism (7) comprises a driving groove (71) arranged on the base (1), a forward and reverse screw rod (72) rotatably arranged in the driving groove (71), a driving motor (73) for driving the forward and reverse screw rod (72) to rotate is also arranged on the driving groove (71), a left slider (74) and a right slider (75) which can move symmetrically back and forth are symmetrically arranged on the forward and reverse screw rod (72), the left support plate (2) is fixed on the left slider (74), and the right support plate (3) is fixed on the right slider (75).

3. The PET foam core material weld detection device according to claim 1, characterized in that: A movable clamping plate (8) and a clamping mechanism (41) for driving the clamping plate (8) to move are arranged in the left clamping slot (4), and a clamping plate (8) and a clamping mechanism (41) of the same structure are also arranged in the right clamping slot (5).

4. The PET foam core material weld detection device as claimed in claim 3, characterized in that: The clamping mechanism (41) comprises a group of T-shaped clamping guide rods (411) arranged on the clamping plate (8); a group of clamping guide holes (42) adapted to the T-shaped clamping guide rods (411) are arranged on the left clamping slot (4); a clamping spring (412) is arranged between the left clamping slot (4) and the clamping plate (8); and the clamping spring (412) is sleeved on the T-shaped clamping guide rod (411).

5. The PET foam core material weld detection device as claimed in claim 3, characterized in that: The lower ends of the left card slot (4) and the right card slot (5) are both provided with limiting blocks (10) for preventing the left card slot (4) and the right card slot (5) from rotating downwards.

6. The PET foam core material weld detection device according to claim 5, characterized in that: Side openings (43) are respectively provided on the side walls of the left clamping slot (4) and the right clamping slot (5) on the same side, and arc-shaped introduction portions (81) are provided on the clamping plate (8) and the side opening (43).

7. The PET foam core material weld detection device according to claim 1, characterized in that: The base (1) is provided with a guide rod (11), the left support plate (2) and the right support plate (3) are both provided with guide blocks (9), the guide blocks (9) are provided with guide holes (91) adapted to the guide rod (11), and the guide blocks (9) can be slidably inserted into the guide rod (11).

8. The PET foam core material weld detection device according to claim 7, characterized in that: The guide rod (11) is provided with a distance scale (111).

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