Plastic stretching detection device

Abstract

The utility model provides a plastic stretching detection device, which relates to the technical field of plastic stretching detection and comprises a control console, a stand column, a top plate, a force sensor, an electric push rod, a base, a clamping module, a fixed plate, a clamping plate, a side plate, a transverse plate, a bolt, a vertical plate, a groove, a baffle plate, a guide rod, a movable plate, a spring, a sliding plate, a sliding rail, a sliding chute and an extension rod, when the detection device is used, a plastic sheet to be detected can be firstly placed in the groove, and the placement of the plastic sheet is positioned through the groove, so that the plastic sheet can be ensured to be vertically mounted between the two clamping modules; the installation efficiency and the installation accuracy of the plastic sheet are improved, after the plastic sheet is installed, the groove can be turned over by a certain angle under the action of the elastic rope, the groove does not make contact with the plastic sheet, and therefore the detection accuracy of the plastic sheet is guaranteed, and the use effect is good.

Description

Technical Field

[0001] This utility model relates to the field of plastic tensile testing technology, specifically a plastic tensile testing device. Background Technology

[0002] Plastic sheets refer to materials used in the production of disposable plastic cups, plates, bowls, dishes, boxes and other thermoformed products. They are widely used in packaging for food, vegetables, fruits, beverages, dairy products, industrial parts and other fields.

[0003] To ensure product quality, various indicators of the plastic sheets need to be tested before manufacturing various products, including tensile testing. Existing testing equipment requires the plastic sheet to be tested to be installed vertically onto the testing device. However, since the installation of the plastic sheet is done manually by the staff, the verticality of the plastic sheet depends on the staff's skill level. When the staff's skill level is low, the installation efficiency of the sheet will be reduced, affecting the testing efficiency. Utility Model Content

[0004] The purpose of this invention is to provide a plastic tensile testing device, which aims to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model adopts the following technical solution: The plastic tensile testing device includes a control console. Two columns are symmetrically arranged on the upper surface of the control console. The upper ends of the two columns are connected by a top plate. A force sensor is arranged on the lower surface of the top plate. An electric push rod is installed inside the control console. A base is provided at the output end of the electric push rod. Clamping modules are respectively provided on the lower surface of the force sensor and the upper surface of the base. The clamping module includes a fixed plate. A clamping plate is provided on one side of the fixed plate. Side plates are respectively provided on both sides of the clamping plate. The side plates are slidably connected to the fixed plate. The two side plates are connected by a horizontal plate. A bolt is threaded onto the horizontal plate. One of the bolts... The end is rotatably connected to the fixed plate, wherein a vertical plate is rotatably connected to the fixed plate located in the upper clamping module. A groove for accommodating plastic sheet is opened on one side of the vertical plate. A baffle is set inside the groove. Two guide rods are slidably connected to the groove on one side of the baffle. The two guide rods are connected by a movable plate. The movable plate is located outside the groove. A spring is sleeved on the guide rod and located between the baffle and the groove. A slide plate is slidably connected to the other side of the vertical plate. A slide rail is opened on the outer surface of the slide plate. A slide groove that mates with the slide rail is opened on the outer surface of the vertical plate and the outer surface of the fixed plate. An extension rod is set on the fixed plate. The extension rod is connected to the vertical plate by an elastic rope.

[0006] Preferably, the fixing plate in the lower clamping module is provided with sliding sleeves on both sides that are slidably connected to the column.

[0007] Preferably, the device also includes a laser rangefinder, which includes a transmitter and a receiver. The transmitter of the laser rangefinder is disposed on one side of the clamping plate in the lower clamping module, and the receiver of the laser rangefinder is disposed on one side of the clamping plate in the upper clamping module.

[0008] Preferably, the outer surface of the baffle is provided with a protrusion, and the outer surface of the groove is provided with a slot that engages with the protrusion, and the protrusion can slide along the slot.

[0009] Preferably, one end of the baffle is provided with a chamfer.

[0010] The beneficial effects of this utility model are:

[0011] When in use, this testing device first places the plastic sheet to be tested into the groove, which positions the plastic sheet and ensures that it is installed vertically between the two clamping modules. This improves the installation efficiency and accuracy of the plastic sheet. After the plastic sheet is installed, the groove can be rotated at a certain angle under the action of the elastic rope, and there is no contact between the groove and the plastic sheet, thus ensuring the accuracy of the plastic sheet test and providing good performance. Attached Figure Description

[0012] Figure 1 This is a structural schematic diagram of a specific embodiment of the present utility model.

[0013] Figure 2 yes Figure 1 A magnified view of a portion of point A in the middle.

[0014] Figure 3 yes Figure 1 A magnified view of a section at point B in the middle.

[0015] Figure 4 This is a schematic diagram of the sliding sleeve.

[0016] Figure 5 This is a schematic diagram of the structure after the vertical plate is flipped.

[0017] Figure 6 This is a schematic diagram of the internal structure of the console.

[0018] Figure 7 This is a structural diagram of the fixed plate.

[0019] In the diagram: 1. Control console; 2. Column; 3. Top plate; 4. Force sensor; 5. Electric actuator; 6. Base; 7. Fixing plate; 8. Clamping plate; 9. Side plate; 10. Horizontal plate; 11. Bolt; 12. Vertical plate; 13. Plastic sheet; 14. Groove; 15. Baffle; 16. Guide rod; 17. Movable plate; 18. Spring; 19. Slide plate; 20. Slide groove; 21. Extension rod; 22. Elastic rope; 23. Sliding sleeve; 24. Transmitter; 25. Receiver. Detailed Implementation

[0020] The specific embodiments of this utility model will be further described below with reference to the accompanying drawings.

[0021] like Figure 1-7 As shown, a plastic tensile testing device includes a control console 1. Two columns 2 are symmetrically arranged on the upper surface of the control console 1. The upper ends of the two columns 2 are connected by a top plate 3. A force sensor 4 is installed on the lower surface of the top plate 3. An electric push rod 5 is installed inside the control console 1. A base 6 is installed at the output end of the electric push rod 5. Clamping modules are respectively installed on the lower surface of the force sensor 4 and the upper surface of the base 6. The clamping module includes a fixed plate 7. A clamping plate 8 is installed on one side of the fixed plate 7. Side plates 9 are respectively installed on both sides of the clamping plate 8. The side plates 9 are slidably connected to the fixed plate 7. The two side plates 9 are connected by a horizontal plate 10. A bolt 11 is threaded onto the horizontal plate 10. One end of the bolt 11 is rotatably connected to the fixed plate 7. The bolt 11 located in the upper clamping module... A vertical plate 12 is rotatably connected to a fixed plate 7. A groove 14 for accommodating a plastic sheet 13 is provided on one side of the vertical plate 12. A baffle 15 is provided inside the groove 14. Two guide rods 16 are slidably connected to the groove 14 on one side of the baffle 15. The two guide rods 16 are connected by a movable plate 17, which is located outside the groove 14. A spring 18 is sleeved on the guide rods 16 and located between the baffle 15 and the groove 14. A sliding plate 19 is slidably connected to the other side of the vertical plate 12. A slide rail is provided on the outer surface of the sliding plate 19. A groove 20 that cooperates with the slide rail is provided on the outer surface of the vertical plate 12 and the outer surface of the fixed plate 7. An extension rod 21 is provided on the fixed plate 7. The extension rod 21 is connected to the vertical plate 12 by an elastic rope 22.

[0022] The elastic rope 22 is always in a stretched state. When the slide plate 19 is completely on the vertical plate 12, the elastic rope 22 can cause the vertical plate 12 to flip under the fixed plate 7, so that the groove 14 is deviated from the direct bottom of the fixed plate 7. After the slide plate 19 enters the groove 20 on the fixed plate 7 through the slide rail, the vertical plate 12 cannot flip under the action of the elastic rope 22, so that the vertical plate 12 remains in a vertical downward position, so as to install the plastic sheet 13 onto the clamping module. And because the elastic rope 22 has the tendency to control the vertical plate 12 to flip, it will keep the slide rail of the slide plate 19 in contact with the groove 20 of the fixed plate 7, thereby preventing the slide plate 19 from moving downward under its own weight. That is, the slide plate 19 can only be moved downward by manual control to disengage the slide plate 19 from the fixed plate 7.

[0023] The plastic sheet 13 to be tested has a uniform shape and size to meet the testing standards. The plastic sheet 13 has a uniform thickness in the middle and larger ends. When clamping, the two ends of the plastic sheet 13 are mainly clamped, and the plastic sheet 13 can remain upright when not bent or twisted by external force.

[0024] Specifically, when installing the plastic sheet 13, firstly, the vertical plate 12 and the fixed plate 7 are connected by the sliding plate 19, keeping the vertical plate 12 vertically downward. Then, the baffle 15 is moved by the movable plate 17 and the guide rod 16, so that the middle part of the plastic sheet 13 can be placed into the groove 14. Then, the movable plate 17 is released, and the plastic sheet 13 is clamped in the groove 14 under the action of the spring 18. Next, the electric push rod 5 is activated. As the output end of the electric push rod 5 extends upward, it will drive the clamp through the base 6. The clamping module moves upward. When the lower end of the plastic sheet 13 enters between the fixing plate 7 and the clamping plate 8, the bolt 11 is rotated. One end of the bolt 11 remains rotatably connected to the fixing plate 7, and the bolt 11 and the fixing plate 7 are always in a connected state. Therefore, when the bolt 11 is rotated, the horizontal plate 10, the side plate 9, and the clamping plate 8 will move. The clamping plate 8 moves closer to the fixing plate 7, fixing the lower end of the plastic sheet 13 between the fixing plate 7 and the clamping plate 8. Then, the slide plate 19 is completely moved onto the vertical plate 12. The vertical plate 12 is controlled to flip, separating the groove 14 from the plastic sheet 13. At this time, the groove 14 is not in contact with the plastic sheet 13, and the plastic sheet 13 can remain upright. Then, the output end of the electric push rod 5 is controlled to continue to rise, driving the plastic sheet 13 to move upward. When the upper end of the plastic sheet 13 enters between the clamping plate 8 and the fixing plate 7 in the clamping module above, the upper end of the plastic sheet 13 is clamped and fixed between the clamping plate 8 and the fixing plate 7 by rotating the bolt 11, thus completing the plastic sheet... The upper and lower ends of the material 13 are clamped and fixed. After the plastic sheet 13 is fixed, the plastic sheet 13 is still in a naturally straight state. Then, the electric push rod 5 drives the clamping module below to move downward, stretching the plastic sheet 13. The force sensor 4 detects the stretching of the plastic sheet 13 and transmits the data to the computer. When the plastic sheet 13 is completely broken, the force sensor 4 receives the signal and controls the electric push rod 5 to stop moving, thereby realizing the stretching detection of the plastic sheet 13.

[0025] Furthermore, the fixed plate 7 located in the lower clamping module is provided with sliding sleeves 23 on both sides, which are slidably connected to the column 2, so as to improve the stability of the lower clamping module when it moves up and down.

[0026] Furthermore, it also includes a laser rangefinder sensor, which includes a transmitter 24 and a receiver 25. The transmitter 24 of the laser rangefinder sensor is located on one side of the clamping plate 8 in the lower clamping module, and the receiver 25 of the laser rangefinder sensor is located on one side of the clamping plate 8 in the upper clamping module. When the plastic sheet 13 is completely broken, the electric push rod 5 stops moving. At this time, the length change of the plastic sheet 13 from the initial stretching to the point of stretching breakage can be calculated by the laser rangefinder sensor.

[0027] Furthermore, the outer surface of the baffle 15 is provided with protrusions, and the outer surface of the groove 14 is provided with a groove that engages with the protrusions. The protrusions can slide along the grooves to improve the stability of the baffle 15 moving within the groove 14.

[0028] Furthermore, one end of the baffle 15 is chamfered to facilitate the placement of the plastic sheet 13 into the groove 14.

[0029] In the description of this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

Claims

1. A plastic stretch detection device, characterized by, The utility model provides a kind of control console, the upper surface of the control console is symmetrically provided with two columns, the upper end of two the column is connected by top plate, the lower surface of the top plate is provided with force sensor, the inside of the control console is provided with electric push rod, the output end of the electric push rod is provided with base, the lower surface of the force sensor and the upper surface of base are respectively provided with clamping module, the clamping module includes fixed plate, the side of the fixed plate is provided with clamping plate, the both sides of the clamping plate are respectively provided with side plate, the side plate is slidably connected with fixed plate, two side plates are connected by crosspiece, bolt is threadedly connected on the crosspiece, one end of the bolt is rotatably connected with fixed plate, wherein the fixed plate in the upper clamping module is rotatably connected with vertical plate, the side of the vertical plate is provided with recess for accommodating plastic sheet, the inside of the recess is provided with baffle, the side of the baffle is provided with two guide rods slidably connected with recess, two the guide rod is connected by movable plate, the movable plate is located outside the recess, spring is sleeved on the guide rod and between baffle and recess, the other side of the vertical plate is slidably connected with slide plate, the outer surface of the slide plate is provided with slide rail, the outer surface of the vertical plate and the outer surface of fixed plate are provided with sliding groove matched with slide rail, the fixed plate is provided with extension rod, the extension rod is connected by elastic cord between vertical plate.

2. The plastic stretch detection apparatus of claim 1, wherein, The both sides of the fixed plate in the lower clamping module are respectively provided with sliding sleeve slidably connected with column.

3. The plastic stretch detection apparatus of claim 1, wherein, It also includes laser ranging sensor, the laser ranging sensor includes emitting end and receiving end, the emitting end of the laser ranging sensor is arranged on the side of the clamping plate in the lower clamping module, and the receiving end of the laser ranging sensor is arranged on the side of the clamping plate in the upper clamping module.

4. The plastic stretch detection apparatus of claim 1, wherein, The outer surface of the baffle is provided with protrusion, the outer surface of the recess is provided with clamping groove matched with protrusion, and the protrusion can slide along the clamping groove.

5. The plastic stretch detection apparatus of any one of claims 1-4, wherein, One end of the baffle is provided with chamfer.

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