Thermal expansion coefficient testing device for adhesive product
By designing a thermal expansion coefficient test device for adhesive products with components such as temperature control chambers and air discharge cylinders, the inadequate temperature control and sample pick-up and placement are solved, a stable and uniform temperature environment and convenient sample operation are achieved, and the testing accuracy and efficiency are improved.
Patent Information
- Application Number
- CN202422665138.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-01
- Publication Date
- 2025-08-22
- Estimated Expiration
- 2034-11-01
AI Technical Summary
The existing thermal expansion coefficient test devices for adhesive products have shortcomings in temperature control and sample pick-up and placement, resulting in insufficient testing accuracy and operational convenience.
A thermal expansion coefficient test device including a temperature control chamber, a blower, a cam and a motor drive is designed. The temperature control is achieved through the motor driving the rotary rod and the blowing fan blade. The blower and a cam adjust the airflow direction, and the observation port and the pick-up port design are combined to ensure temperature uniformity and sample stability.
It realizes a stable and uniform temperature environment for adhesive products during the testing process, improves testing accuracy, reduces errors caused by temperature unevenness, and makes samples more convenient to pick up and store, reduces the risk of damage and pollution, and improves testing efficiency.
Smart Images
Figure CN223259624U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to a thermal expansion coefficient testing technology, in particular to a thermal expansion coefficient testing device for adhesive products. Background Art
[0002] Adhesives are often used to bond different materials, such as metals, plastics, and glass. These materials may have different coefficients of thermal expansion, which can lead to stress concentration or deformation when the temperature changes. Testing the coefficient of thermal expansion of adhesives can evaluate how the adhesive changes at different temperatures, thereby assessing the compatibility between different materials and selecting the appropriate adhesive to accommodate the differences between the materials and improve the bonding effect. Testing the coefficient of thermal expansion of adhesives is usually measured using a static thermomechanical analyzer (TMA for short).
[0003] Therefore, a method is needed to control the temperature of double-layer or single-layer adhesive products before using a static thermal mechanical analyzer, so as to obtain samples at different temperatures. At the same time, it is convenient to take and place samples, and the internal structure can be observed during operation. Summary of the Invention
[0004] Purpose of the invention: The purpose of the present invention is to provide different temperature control for adhesive products with double-layer glue or single-layer glue; another purpose of the present invention is to provide a more convenient way to take and place samples, and to observe the interior during work.
[0005] Technical solution: A thermal expansion coefficient testing device for adhesive products, including a temperature control chamber, a placement groove is opened inside the temperature control chamber, and rotation grooves are symmetrically opened inside the placement grooves. The interiors of the rotation grooves are rotatably connected to air outlets, and the front ends of the air outlets pass through the front surface of the temperature control chamber and are fixedly connected to transmission teeth. The front surface of the temperature control chamber is fixedly connected to a rotating rod, the outer side wall of the rotating rod is fixedly connected to a cam, the outer side wall of the cam is fixedly connected to a rack, the front surface of the temperature control chamber is fixedly connected to a front cover, and the front surface of the front cover is fixedly connected to a temperature control device.
[0006] Furthermore, the temperature control device includes a blowing chamber, the front end of the rotating rod passes through the interior of the blowing chamber, the outer wall of the rotating rod is located inside the blowing chamber and is fixedly connected with a blowing fan blade, the front surface of the front cover is symmetrically fixedly connected with the air inlet chamber, the air inlet chamber and the blowing chamber are fixedly connected with a connecting pipe, the front end of the air outlet tube is fixedly connected with an air inlet column, the front end of the air inlet column passes through the interior of the air inlet chamber, the outer wall of the air inlet column is fixedly connected with a rotating ring, a circular groove is provided inside the air inlet chamber, the outer wall of the rotating ring is slidably connected to the interior of the circular groove, the upper surface of the blowing chamber is fixedly connected with a heating device, the front surface of the blowing chamber is fixedly connected with a motor, the output end of the motor passes through the interior of the blowing chamber and is fixedly connected to the front end of the rotating rod.
[0007] Furthermore, the heating device includes a liquid storage cavity, and a plurality of heating rods are symmetrically fixedly connected inside the liquid storage cavity.
[0008] Furthermore, the exhaust pipe includes a rotating circular cavity, the inner side wall of the rotating circular cavity is symmetrically provided with a plurality of exhaust holes, the front end of the rotating circular cavity is provided with a connecting hole, the interior of the connecting hole is fixedly connected with a connecting long rod, the rotating circular cavity is rotatably connected to the rotating groove, the rear end of the rotating circular cavity is fixedly connected with a connecting rotating block, and the rear end of the connecting rotating block is rotatably connected to the inner rear surface of the rotating groove.
[0009] Furthermore, a take-and-place opening is provided on the rear surface of the placement slot, a take-and-place block is snap-connected inside the take-and-place opening, and a sample plate is fixedly connected to the front end of the take-and-place block.
[0010] Furthermore, an observation port is provided on the upper surface of the temperature control cavity, and an observation glass is fixedly connected to the interior of the observation port.
[0011] Furthermore, a handle is fixedly connected to the rear surface of the pick-and-place block.
[0012] Beneficial effects: The motor drives the rotating rod to rotate, and the blowing fan blades cause the air to flow in the blowing chamber. The heating device heats the air, which can achieve precise control of the air temperature. The air inlet column of the air outlet is connected to the air inlet chamber, and the rotating ring on the air inlet column cooperates with the circular groove of the air inlet chamber to ensure sealing, and the hot air is stably transmitted to the air outlet. The rotating circular cavity of the air outlet has multiple air outlets, which can blow out the hot air evenly. The cam is then used to drive the air outlet to rotate and adjust the direction, so that the adhesive products placed in the slot are heated evenly. This provides a stable and uniform temperature environment for the use of a static thermal mechanical analyzer to accurately test the thermal expansion coefficient, greatly improving the test accuracy and reducing errors caused by uneven temperature.
[0013] The rear surface of the placement tank features an access opening. A handle-mounted access block engages within the opening to secure the sample plate, facilitating the placement and removal of adhesive product test samples. This design ensures stable sample placement during testing while facilitating ease of operation, reducing the risk of sample damage or contamination during placement and retrieval, improving test efficiency and making the entire testing process more convenient and efficient. The observation port and observation glass on the upper surface of the temperature-controlled chamber allow users to observe the state changes of the adhesive product at different temperatures in real time without opening the chamber, facilitating timely data recording and identifying anomalies to facilitate adjustment of test conditions. BRIEF DESCRIPTION OF THE DRAWINGS
[0014] Figure 1 It is a schematic diagram of the overall structure of the utility model;
[0015] Figure 2 It is a schematic cross-sectional view of the temperature control device of the present invention;
[0016] Figure 3 This is a schematic cross-sectional view of the air intake cavity of the utility model;
[0017] Figure 4 It is a schematic cross-sectional structural diagram of the present utility model;
[0018] Figure 5 This is a schematic cross-sectional structural diagram of the front cover of the utility model;
[0019] Figure 6 This is a schematic cross-sectional view of the punching bag of the utility model;
[0020] Figure 7 This is a rear view structural diagram of the utility model;
[0021] Figure 8 It is a schematic cross-sectional view of the heating device of the present invention.
[0022] In the figure: 1. temperature control chamber; 2. placement groove; 3. rotation groove; 4. air outlet; 5. transmission gear; 6. rotating rod; 7. cam; 8. transmission gear; 9. front cover; 10. temperature control device; 11. take-in and put-out port; 12. take-in and put-out block; 13. sample plate; 14. handle; 15. observation port; 16. observation glass; 101. blowing chamber; 102. blowing fan blade; 103. air inlet chamber; 104. connecting pipe; 105. air inlet column; 106. rotating circle; 107. circular groove; 108. heating device; 109. motor; 201. liquid storage chamber; 202. heating rod; 301. rotating circular chamber; 302. air outlet; 303. connecting hole; 304. connecting long rod; 305. connecting rotating block. DETAILED DESCRIPTION
[0023] In order to make the technical solution of the present invention clearer, the present invention is further described in detail below with reference to the accompanying drawings and specific embodiments.
[0024] Example 1
[0025] like Figure 1 、 Figure 2 、 Figure 3 and Figure 4 As shown, a device for testing the thermal expansion coefficient of an adhesive product is provided, comprising a temperature control chamber 1, a placement slot 2 is provided inside the temperature control chamber 1, a rotation slot 3 is symmetrically provided inside the placement slot 2, an air outlet 4 is rotatably connected inside the rotation slot 3, the front end of the air outlet 4 passes through the front surface of the temperature control chamber 1 and is fixedly connected to a transmission tooth 5, a rotating rod 6 is fixedly connected to the front surface of the temperature control chamber 1, a cam 7 is fixedly connected to the outer wall of the rotating rod 6, a rack 8 is fixedly connected to the outer wall of the cam 7, a front cover 9 is fixedly connected to the front surface of the temperature control chamber 1, a temperature control device 10 is fixedly connected to the front surface of the front cover 9, the temperature control device 10 comprises a blowing chamber 101, the front end of the rotating rod 6 passes through the interior of the blowing chamber 101, the outer wall of the rotating rod 6 is fixedly connected to a blowing fan blade 102 located inside the blowing chamber 101, and the front surface of the front cover 9 is symmetrically fixedly connected There is an air inlet chamber 103, and a connecting pipe 104 is fixedly connected between the air inlet chamber 103 and the blowing chamber 101. The front end of the air outlet tube 4 is fixedly connected to the air inlet column 105, and the front end of the air inlet column 105 passes through the interior of the air inlet chamber 103. The outer wall of the air inlet column 105 is fixedly connected to a rotating ring 106. A circular groove 107 is opened inside the air inlet chamber 103, and the outer wall of the rotating ring 106 is slidably connected to the interior of the circular groove 107. The upper surface of the blowing chamber 101 is fixedly connected to a heating device 108, and the front surface of the blowing chamber 101 is fixedly connected to a motor 109. The output end of the motor 109 passes through the interior of the blowing chamber 101 and is fixedly connected to the front end of the rotating rod 6. The heating device (108) includes a liquid storage chamber (201), and a plurality of heating rods (202) are symmetrically fixedly connected to the interior of the liquid storage chamber (201);
[0026] Motor 109 starts, its output extending into the interior of blowing chamber 101 and driving rotating rod 6 to rotate. At this point, blowing blades 102, fixedly attached to the outer wall of rotating rod 6, rotate within blowing chamber 101. Simultaneously, cam 7 and its outer rack 8 also rotate synchronously with rotating rod 6. Outside air enters through intake chamber 103, symmetrically fixed to the front surface of front cover 9. Because intake chamber 103 and blowing chamber 101 are permanently connected via connecting pipe 104, air flows along connecting pipe 104 into blowing chamber 101. Simultaneously, heating device 108 on the upper surface of blowing chamber 101 is activated, heating the air flowing into blowing chamber 101. Under the rotation of the blower blades 102, the heated air flows and mixes within the blower chamber 101, achieving uniform heating. This allows for controlled temperature control of the sample, which is then accurately tested using a static thermomechanical analyzer. The front end of the inlet column 105 at the front end of the outlet tube 4 extends into the inlet chamber 103, and the rotating ring 106 on the outer wall of the inlet column 105 slides within the circular groove 107 within the inlet chamber 103. This ensures the stability of the inlet column 105 during rotation within the inlet chamber 103 and also acts as a seal to prevent hot air leakage. The liquid chamber 201 contains heated liquid, which heats the air. The heated air then flows through the inlet column 105 and into the outlet tube 4. As the cam 7 continues to rotate, the rack 8 on the outer wall of the cam 7 contacts the transmission gear 5 fixed to the front end of the outlet tube 4. The rotation of the cam 7 drives the transmission gear 5 to rotate. Because the blower 4 is rotatably connected within the rotating groove 3, the rotation of the transmission gear 5 causes the blower 4 to rotate within the rotating groove 3, thereby adjusting the direction of the blower 4. After the direction is adjusted, the hot air is evenly blown into the placement groove 2 defined within the temperature control chamber 1, creating a stable, controllable, and uniform temperature environment for the adhesive products placed in the placement groove 2.
[0027] like Figure 6 As shown, the outlet tube 4 includes a rotating circular cavity 301, and a plurality of air outlet holes 302 are symmetrically opened on the inner side wall of the rotating circular cavity 301. A communicating hole 303 is opened at the front end of the rotating circular cavity 301. The interior of the communicating hole 303 is fixedly connected with a communicating long rod 304. The rotating circular cavity 301 is rotatably connected to the rotating groove 3, and the rear end of the rotating circular cavity 301 is fixedly connected to a connecting rotating block 305. The rear end of the connecting rotating block 305 is rotatably connected to the inner rear surface of the rotating groove 3.
[0028] The inner wall of the rotating circular cavity 301 is symmetrically provided with a plurality of air outlet holes 302, which are used to blow out the hot air evenly. A connecting hole 303 is provided at the front end of the rotating circular cavity 301, and a connecting long rod 304 is fixedly connected inside the connecting hole 303. The connecting long rod 304 is connected to the air inlet column 105, so that hot air can enter the rotating circular cavity 301 from the air inlet column 105. The rotating circular cavity 301 is rotatably connected to the rotating groove 3 opened inside the temperature control cavity 1. Specifically, the rear end of the rotating circular cavity 301 is fixedly connected to the connecting rotating block 305, and the rear end of the connecting rotating block 305 is rotatably connected to the inner rear surface of the rotating groove 3, thereby realizing the flexible rotation of the air outlet tube 4 in the rotating groove 3 to adjust the air outlet direction of the air outlet hole 302.
[0029] like Figure 7 As shown, the rear surface of the placement slot 2 is provided with a pick-up and placement opening 11, the interior of the pick-up and placement opening 11 is connected with a pick-up and placement block 12, the front end of the pick-up and placement block 12 is fixedly connected with a sample plate 13; the rear surface of the pick-up and placement block 12 is fixedly connected with a handle 14
[0030] A take-in / take-out opening 11 is provided on the rear surface of the placement slot 2, and this take-in / take-out opening 11 is used to facilitate the placement and removal of test samples of adhesive products. The interior of the take-in / take-out opening 11 is snap-connected with a take-in / take-out block 12, which serves to close the take-in / take-out opening 11 and fix the test samples. The front end of the take-in / take-out block 12 is fixedly connected with a sample plate 13, and the adhesive product for testing can be placed on the sample plate 13. When testing is required, the adhesive product is placed on the sample plate 13, and then the take-in / take-out block 12 is snap-connected in the take-in / take-out opening 11, so that the adhesive product is stably located in the placement slot 2 to receive hot air, thereby stabilizing the temperature of the sample and facilitating the testing of product test data at different temperatures.
[0031] like Figure 1 and Figure 2 As shown, an observation port 15 is provided on the upper surface of the temperature control chamber 1, and an observation glass 16 is fixedly connected to the interior of the observation port 15;
[0032] The upper surface of the temperature-controlled chamber 1 is provided with an observation port 15, which provides a user with a passage to observe the interior of the placement tank 2. An observation glass 16 is fixedly connected to the interior of the observation port 15. The observation glass 16 allows the user to visually observe the state of the adhesive product inside at different temperatures without opening the temperature-controlled chamber 1.
[0033] The above-described embodiments merely represent several implementation methods of the present invention. While the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the present invention. It should be noted that a person skilled in the art would be able to make various modifications and improvements without departing from the concept of the present invention, and these modifications and improvements fall within the scope of protection of the present invention. Therefore, the scope of protection of the present invention shall be determined by the appended claims.
Claims
1. A device for testing the thermal expansion coefficient of an adhesive product, comprising a temperature control chamber (1), characterized in that: A placement groove (2) is provided inside the temperature control chamber (1), a rotation groove (3) is symmetrically provided inside the placement groove (2), and an air outlet (4) is rotatably connected inside the rotation groove (3). The front end of the air outlet (4) passes through the front surface of the temperature control chamber (1) and is fixedly connected to a transmission tooth (5). The front surface of the temperature control chamber (1) is fixedly connected to a rotation rod (6), the outer wall of the rotation rod (6) is fixedly connected to a cam (7), the outer wall of the cam (7) is fixedly connected to a rack (8), the front surface of the temperature control chamber (1) is fixedly connected to a front cover (9), and the front surface of the front cover (9) is fixedly connected to a temperature control device (10).
2. The device for testing the coefficient of thermal expansion of adhesive products according to claim 1, characterized in that: The temperature control device (10) includes an air blowing cavity (101), the front end of the rotating rod (6) penetrates into the interior of the air blowing cavity (101), the outer wall of the rotating rod (6) is located inside the air blowing cavity (101) and is fixedly connected to an air blowing fan blade (102), the front surface of the front cover (9) is symmetrically fixedly connected to an air inlet cavity (103), a connecting pipe (104) is fixedly connected between the air inlet cavity (103) and the air blowing cavity (101), the front end of the air outlet cylinder (4) is fixedly connected to an air inlet column (105), and the front end of the air inlet column (105) penetrates into the air inlet cavity (103). Inside the air cavity (103), the outer wall of the air inlet column (105) is fixedly connected to a rotating ring (106), a circular groove (107) is opened inside the air inlet cavity (103), the outer wall of the rotating ring (106) is slidably connected to the inside of the circular groove (107), the upper surface of the blowing cavity (101) is fixedly connected to a heating device (108), the front surface of the blowing cavity (101) is fixedly connected to a motor (109), the output end of the motor (109) passes through the inside of the blowing cavity (101) and is fixedly connected to the front end of the rotating rod (6).
3. The device for testing the coefficient of thermal expansion of adhesive products according to claim 2, characterized in that: The heating device (108) comprises a liquid storage cavity (201), and a plurality of heating rods (202) are symmetrically and fixedly connected inside the liquid storage cavity (201).
4. The device for testing the coefficient of thermal expansion of adhesive products according to claim 1, wherein: The air outlet tube (4) includes a rotating circular cavity (301), the inner side wall of the rotating circular cavity (301) is symmetrically provided with a plurality of air outlet holes (302), the front end of the rotating circular cavity (301) is provided with a connecting hole (303), the interior of the connecting hole (303) is fixedly connected with a connecting long rod (304), the rotating circular cavity (301) is rotatably connected to the rotating groove (3), the rear end of the rotating circular cavity (301) is fixedly connected with a connecting rotating block (305), and the rear end of the connecting rotating block (305) is rotatably connected to the inner rear surface of the rotating groove (3).
5. The device for testing the coefficient of thermal expansion of adhesive products according to claim 1, characterized in that: The rear surface of the placement slot (2) is provided with a pick-up and placement opening (11), the interior of the pick-up and placement opening (11) is snap-connected with a pick-up and placement block (12), and the front end of the pick-up and placement block (12) is fixedly connected with a sample plate (13).
6. The device for testing the coefficient of thermal expansion of adhesive products according to claim 1, characterized in that: An observation port (15) is provided on the upper surface of the temperature control cavity (1), and an observation glass (16) is fixedly connected to the interior of the observation port (15).
7. The device for testing the coefficient of thermal expansion of adhesive products according to claim 5, characterized in that: A handle (14) is fixedly connected to the rear surface of the pick-and-place block (12).