Strength detection equipment for plastic product

Abstract

The utility model discloses strength detection equipment for plastic products, which belongs to the technical field of plastic product production and comprises a base, a supporting plate is mounted at the top of the base, strip-shaped grooves are formed in the top of the supporting plate in an annular array manner, length extension lines of the strip-shaped grooves intersect at one point, and sliding plates are arranged in the strip-shaped grooves in a sliding manner. The sliding plates are arranged on the top of the supporting plate in the annular array sliding mode, the springs and the squeezing plates are arranged on the inner sides of the sliding plates, plastic products can be squeezed and positioned in an elastic squeezing mode, the plastic products are well protected, in addition, the sliding rods arranged on the sliding plates in the sliding mode are connected with the squeezing plates, and the plastic products are prevented from being damaged. And a micro air cylinder at the top of the sliding plate is matched for use, so that after the plastic product is elastically extruded and fixed, the position of the sliding rod is fixed through the micro air cylinder, the position stability of the extrusion plate can be ensured, and displacement of the plastic product in the detection process is effectively avoided.

Description

Technical Field

[0001] The utility model relates to a strength detection device, in particular to a strength detection device for plastic products, belonging to the technical field of plastic product production. Background Art

[0002] Plastic products are a general term for daily necessities, industrial products, etc. that are made of plastic as the main raw material, including products made from all processes such as injection molding and blister molding. In order to meet the requirements of food safety and hygiene, some items need to be packaged in food-grade plastic. After the production of plastic products is completed, strength testing is required to ensure the strength of the plastic products.

[0003] In the prior art, for example, the utility model with application number 201821406167.8 discloses an online strength detection device for plastic products, in which a motor is installed above a support seat, a base is installed on the top of the motor, and the rotation of the motor can drive the base to rotate, and two screw rods are rotatably installed in the support seat, and a slider is threadedly connected to the screw rod, and a first electric telescopic rod is installed on the surface of the slider, and the first electric telescopic rod is fixedly connected to the second electric telescopic rod through a connecting block, the first electric telescopic rod is vertical to the second electric telescopic rod, and one end of the second electric telescopic rod is connected to a first extrusion block, and the first electric telescopic rod and the second electric telescopic rod can be controlled to adjust according to the diameter of the plastic product The two first extrusion blocks are arranged so that the plastic product is clamped by the two first extrusion blocks, and then the sponge in the first extrusion block can wipe off the burrs on the surface of the plastic product. The rotation of the base drives the plastic product to rotate, and the two lead screws are driven to rotate by the motor, so that the sponge can wipe the whole body of the plastic product in an all-round way. Support plates are respectively installed on the surface of the base, and springs are installed on the sides of the support plates. One end of the spring is connected to the second extrusion block, and the plastic product is placed in the placement groove, and then a pressure can be applied to the plastic product through the spring, so that the plastic product can be fixed. Since the pressure of the spring is small, it is not only convenient to adjust and fix according to the diameter of the plastic product, but also will not cause damage to the plastic product.

[0004] Similar to the above application, there are still some shortcomings:

[0005] 1. Although the elastic fixation can provide a good protection for plastic products, it is easy to cause the displacement of plastic products when they are squeezed during the strength test. In addition, the sizes of plastic products are different, while the position of the spring is fixed, so the fixing stability is poor;

[0006] 2. During the testing process, the extrusion test can only be performed vertically on the top of the plastic product, and it is not possible to perform multi-angle adjustment testing, which makes the test inconvenient;

[0007] Therefore, a strength testing device for plastic products is designed to optimize the above-mentioned problems. Utility Model Content

[0008] The main purpose of the utility model is to provide a strength testing device for plastic products. A slide plate is slidably arranged in an annular array on the top of a support plate, and a spring and an extrusion plate are arranged on the inner side of the slide plate. The plastic product can be squeezed and positioned by elastic extrusion, so the plastic product is well protected. In addition, a slide rod slidably arranged on the slide plate is connected to the extrusion plate, and then used in conjunction with a micro-cylinder on the top of the slide plate. After the plastic product is elastically extruded and fixed, the position of the slide rod is fixed by the micro-cylinder, so that the position of the extrusion plate can be guaranteed to be stable, and the displacement of the plastic product during the detection process can be effectively avoided. In addition, the slide plate is slidably arranged on the top of the support plate, and the position of the spring can be adjusted according to the size of the plastic product, thereby improving the applicability of the device. By installing the extrusion cylinder on the slide block, and the slide plate can slide along the arc rod, and then used in conjunction with a rotating mechanism composed of an annular groove at the bottom of the arc rod, a worm, and a worm gear, the detection position can be adjusted during the strength detection process, and the operation is more convenient.

[0009] The purpose of the utility model can be achieved by adopting the following technical solutions:

[0010] A strength testing device for plastic products comprises a base, a support plate is installed on the top of the base, strip grooves are provided on the top of the support plate in a circular array, and the length extension lines of the strip grooves intersect at one point, a slide plate is slidably provided inside the strip grooves, a spacing adjustment mechanism is provided at the bottom end of the slide plate, a spring is installed on the top of the inner side of the slide plate, an extrusion plate parallel to the slide plate is fixed at the end of the spring away from the slide plate, a sliding rod slidably connected to the slide plate is fixed on the outer side of the extrusion plate, and the sliding rod passes through the slide plate, a micro cylinder is vertically installed on the top of the slide plate, and the output end of the micro cylinder faces the side of the sliding rod, an arc rod is provided between the two sides of the top of the support plate, and the arc rod is located on a vertical plane, a rotating mechanism is provided at the bottom end of the arc rod, a slide block is slidably provided on the arc rod, an extrusion cylinder is installed at the bottom of the slide block, a hardness tester is fixed at the bottom end of the extrusion cylinder, and a positioning bolt is installed on the outer side of the slide block.

[0011] Preferably, four groups of extrusion plates are provided, and the angle between adjacent extrusion plates is 90°.

[0012] Preferably: a rubber pad is provided on one side of the extrusion plate away from the spring, and anti-slip grooves are provided on the outer side of the rubber pad.

[0013] Preferably: the spacing adjustment mechanism includes a motor, a turntable, an arc groove and a protrusion, the motor is installed in the middle position of the top of the base, the output end of the motor is installed with a turntable that fits the bottom of the support plate, the top of the turntable is evenly provided with arc grooves in a circular array, the inside of the arc groove is slidably provided with protrusions, and the tops of the protrusions are fixedly connected to the bottom of the skateboard respectively.

[0014] Preferably, the top view of the bump is circular, and the outer side of the bump is coated with a wear-resistant coating.

[0015] Preferably: the rotating mechanism includes an annular groove, a worm wheel and a worm, the annular groove is opened on the outer side of the top of the support plate, the worm wheel is rotatably installed inside the annular groove, the two ends of the arc rod are respectively fixed on the top of the worm wheel, and the worm is meshed on the outer side of the worm wheel.

[0016] Preferably, one end of the worm extends to the outside of the support plate, and an adjusting block is installed at the end of the worm.

[0017] The beneficial effects of the utility model are:

[0018] The utility model provides a strength testing device for plastic products. A slide plate is slidably arranged in an annular array on the top of a supporting plate, and a spring and an extrusion plate are arranged on the inner side of the slide plate. The plastic product can be extruded and positioned by elastic extrusion, and the plastic product is well protected. In addition, a slide rod slidably arranged on the slide plate is connected with the extrusion plate, and then used in conjunction with a micro cylinder on the top of the slide plate. After the plastic product is elastically extruded and fixed, the position of the slide rod is fixed by the micro cylinder, so that the position of the extrusion plate can be guaranteed to be stable, and the displacement of the plastic product during the detection process can be effectively avoided. In addition, the slide plate is slidably arranged on the top of the supporting plate, and the position of the spring can be adjusted according to the size of the plastic product, thereby improving the applicability of the device.

[0019] By installing the extrusion cylinder on the slide block, and the slide block being able to slide along the arc rod, and then being used in conjunction with a rotating mechanism consisting of an annular groove at the bottom of the arc rod, a worm and a worm gear, the detection position can be adjusted during the strength test, making the operation more convenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is a front cross-sectional view of the utility model;

[0021] Figure 2 This is a diagram of the clamping mechanism of the utility model;

[0022] Figure 3 It is a top view of the turntable of the utility model;

[0023] Figure 4 It is a top view of the support plate of the present utility model.

[0024] In the figure: 1. base; 2. support plate; 3. strip groove; 4. slide plate; 5. spring; 6. extrusion plate; 7. slide rod; 8. micro cylinder; 9. motor; 10. turntable; 11. arc groove; 12. bump; 13. arc rod; 14. slide block; 15. extrusion cylinder; 16. hardness tester; 17. positioning bolt; 18. annular groove; 19. worm wheel; 20. worm. DETAILED DESCRIPTION

[0025] In order to make the technical solution of the utility model more clear and specific to those skilled in the art, the utility model is further described in detail below in conjunction with embodiments and drawings, but the implementation methods of the utility model are not limited thereto.

[0026] like Figure 1-Figure 4 As shown, this embodiment provides a strength testing device for plastic products, including a base 1, a support plate 2 is installed on the top of the base 1, a strip groove 3 is opened on the top of the support plate 2 in a circular array, and the length extension lines of the strip grooves 3 intersect at one point, a slide plate 4 is slidably provided inside the strip grooves 3, a spacing adjustment mechanism is provided at the bottom end of the slide plate 4, a spring 5 is installed on the top of the inner side of the slide plate 4, an extrusion plate 6 parallel to the slide plate 4 is fixed on the end of the spring 5 away from the slide plate 4, and a sliding plate 6 parallel to the slide plate 4 is fixed on the outer side of the extrusion plate 6. A slide rod 7 is dynamically connected, and the slide rod 7 passes through the slide plate 4. A micro cylinder 8 is vertically installed on the top of the slide plate 4, and the output end of the micro cylinder 8 faces the side of the slide rod 7. An arc rod 13 is arranged between the two sides of the top of the support plate 2, and the arc rod 13 is located on a vertical plane. A rotating mechanism is arranged at the bottom of the arc rod 13, and a slider 14 is slidably arranged on the arc rod 13. An extrusion cylinder 15 is installed at the bottom of the slider 14. A hardness tester 16 is fixed to the bottom end of the extrusion cylinder 15, and a positioning bolt 17 is installed on the outer side of the slider 14.

[0027] The overall working principle is as follows: during testing, the plastic product is placed in the middle position of the support plate 2, and then the spacing adjustment mechanism is used to control the slide plate 4 to move toward each other. During the movement of the slide plate 4, the extrusion plate 6 first fits against the plastic product. As the slide plate 4 continues to move, the spring 5 is compressed, and at the same time, the slide rod 7 slides inside the slide plate 4. The spring 5 applies elastic force to the extrusion plate 6 to squeeze and fix the plastic product, and then the micro cylinder 8 is started to stabilize the position of the slide rod 7, and then the position of the extrusion plate 6 is positioned. After the position of the plastic product is fixed, the slider 14 is dragged to move, and the rotation of the arc rod 13 is controlled by the rotating structure to change the position of the hardness detector 16 at the bottom of the extrusion cylinder 15. The extrusion cylinder 15 is started to control the hardness detector 16 to contact the plastic product for testing.

[0028] In this embodiment, four groups of extrusion plates 6 are provided, and the angle between adjacent extrusion plates 6 is 90°.

[0029] Partial working principle: in the process of the extrusion plate 6 moving toward the plastic product, since the extrusion plate 6 has multiple groups, the contact area with the plastic product is increased, and the fixation is more stable.

[0030] In this embodiment, a rubber pad is provided on one side of the extrusion plate 6 away from the spring 5 , and an anti-slip pattern is provided on the outer side of the rubber pad.

[0031] Partial working principle: The use of rubber pads can ensure the fit between the extrusion plate 6 and the plastic product.

[0032] In this embodiment, the spacing adjustment mechanism includes a motor 9, a turntable 10, an arc groove 11 and a protrusion 12. The motor 9 is installed at the middle position of the top of the base 1. The output end of the motor 9 is installed with a turntable 10 that is attached to the bottom of the support plate 2. The top of the turntable 10 is evenly provided with arc grooves 11 in a circular array. The inside of the arc groove 11 is slidably provided with protrusions 12, and the top of the protrusion 12 is fixedly connected to the bottom of the slide plate 4 respectively.

[0033] Local working principle: When adjusting the position of the slide plate 4, the starting motor 9 drives the turntable 10 to rotate. Since the protrusion 12 is fixed at the bottom of the slide plate 4 and is located inside the arc groove 11, during the rotation of the turntable 10, the side wall of the turntable 10 will generate thrust on the protrusion 12, so that the protrusion 12 can slide inside the arc groove 11, and the movement of the protrusion 12 drives the slide plate 4 to move inside the strip groove 3, thereby changing the position of the slide plate 4.

[0034] In this embodiment, the top view of the bump 12 is circular, and the outer side of the bump 12 is coated with a wear-resistant coating.

[0035] Partial working principle: The circular setting of the protrusion 12 can reduce the friction resistance inside the arc groove 11 and facilitate the control of the movement of the protrusion 12.

[0036] In this embodiment, the rotating mechanism includes an annular groove 18, a worm wheel 19 and a worm 20. The annular groove 18 is opened on the outer side of the top of the support plate 2. The worm wheel 19 is rotatably installed inside the annular groove 18. The two ends of the arc rod 13 are respectively fixed on the top of the worm wheel 19, and the worm 20 is meshed on the outer side of the worm wheel 19.

[0037] Partial working principle: When adjusting the detection position, the worm 20 is started to drive the worm wheel 19 to rotate, and the worm wheel 19 controls the arc rod 13 to rotate on the horizontal plane, thereby adjusting the position of the hardness detector 16 at the output end of the extrusion cylinder 15.

[0038] In this embodiment, one end of the worm 20 extends to the outside of the support plate 2 , and an adjusting block is installed at the end of the worm 20 .

[0039] Partial working principle: When the worm 20 is controlled to rotate, the rotation of the adjusting block is manually controlled, which is easy to operate.

[0040] The above is only a further embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the scope disclosed by the present invention according to the technical solution and concept of the present invention, which fall within the protection scope of the present invention.

Claims

1. A strength testing device for plastic products, characterized in that: The invention comprises a base (1), a support plate (2) is installed on the top of the base (1), a strip groove (3) is provided on the top of the support plate (2) in a circular array, and the length extension lines of the strip grooves (3) intersect at one point, a slide plate (4) is slidably provided inside the strip grooves (3), a spacing adjustment mechanism is provided at the bottom end of the slide plate (4), a spring (5) is installed on the top of the inner side of the slide plate (4), an extrusion plate (6) parallel to the slide plate (4) is fixed at one end of the spring (5) away from the slide plate (4), a slide rod (7) slidably connected to the slide plate (4) is fixed on the outer side of the extrusion plate (6), and the slide rod (5) is provided on the outer side of the extrusion plate (6). 7) passes through the slide plate (4), the top of the slide plate (4) is vertically installed with a micro cylinder (8), and the output end of the micro cylinder (8) faces the side of the slide rod (7), an arc rod (13) is provided between the two sides of the top of the support plate (2), and the arc rod (13) is located on a vertical plane, a rotating mechanism is provided at the bottom end of the arc rod (13), a slider (14) is slidably provided on the arc rod (13), an extrusion cylinder (15) is installed at the bottom of the slider (14), a hardness tester (16) is fixed to the bottom end of the extrusion cylinder (15), and a positioning bolt (17) is installed on the outer side of the slider (14).

2. A plastic product strength testing device according to claim 1, characterized in that: Four groups of extrusion plates (6) are provided, and the angle between adjacent extrusion plates (6) is 90°.

3. The strength testing device for plastic products according to claim 1, characterized in that: A rubber pad is provided on one side of the extrusion plate (6) away from the spring (5), and anti-slip grooves are provided on the outer side of the rubber pad.

4. The strength testing device for plastic products according to claim 1, characterized in that: The spacing adjustment mechanism comprises a motor (9), a rotating disk (10), an arc-shaped groove (11) and a convex block (12). The motor (9) is mounted at the middle position of the top of the base (1). The output end of the motor (9) is mounted with a rotating disk (10) which is attached to the bottom of the support plate (2). The top of the rotating disk (10) is evenly provided with arc-shaped grooves (11) in a circular array. The inside of the arc-shaped grooves (11) is slidably provided with convex blocks (12). The tops of the convex blocks (12) are respectively fixedly connected to the bottom of the slide plate (4).

5. The strength testing device for plastic products according to claim 4, characterized in that: The top view of the bump (12) is circular, and the outer side of the bump (12) is coated with a wear-resistant coating.

6. The strength testing device for plastic products according to claim 1, characterized in that: The rotating mechanism comprises an annular groove (18), a worm wheel (19) and a worm (20); the annular groove (18) is arranged on the outer side of the top of the support plate (2); the worm wheel (19) is rotatably mounted inside the annular groove (18); the two ends of the arc rod (13) are respectively fixed on the top of the worm wheel (19); and the worm (20) is meshed on the outer side of the worm wheel (19).

7. A plastic product strength testing device according to claim 6, characterized in that: One end of the worm (20) extends to the outside of the support plate (2), and an adjustment block is installed at the end of the worm (20).

Images