Tensile strength detection device for heat transfer printing film

Abstract

The invention provides a tensile strength detection device for a heat transfer film, and relates to the technical field of new material research, development and detection, the tensile strength detection device comprises a detection workbench, a slide block is arranged above the detection workbench, and a laser displacement sensor is mounted at the center of the bottom end surface of the slide block; according to the invention, before the operation of the equipment, the state of an electrical element used for realizing data acquisition can be intelligently verified, and a worker can compare the state with a standard value, so that the detection accuracy of the electrical element can be improved, and the detection efficiency can be improved. Whether the operation states of the tension sensor and the laser displacement sensor are normal or not is rapidly judged, the influence of equipment faults on the detection result is effectively eliminated, the data accuracy is ensured, the detection mode does not need manual sample clamping and fixing, the operation process is short, high convenience is achieved, and the detection efficiency is improved. The problem that an existing tensile strength detection device lacks an intelligent electrical element state verification mechanism before equipment operation is solved.

Description

Technical Field

[0001] The present invention relates to the technical field of new material research and development testing, and in particular to a tensile strength testing device for thermal transfer films. Background Art

[0002] In the research and development of new thermal transfer films, tensile strength is one of the key indicators for evaluating material performance. Its accurate detection is crucial for material performance optimization and quality control. However, existing tensile strength testing devices have some problems that need to be solved in practical applications: Existing tensile strength testing devices lack an intelligent electrical component (displacement sensor and tension sensor) status verification mechanism before the equipment is put into operation. Traditional testing methods are highly dependent on manual intervention to complete testing and judgment. The testing personnel must first manually place the standard sample in the clamping mechanism, and then fix the sample through a series of tedious operations such as tightening the adjustment clamp and adjusting the clamping state of the standard sample. This process not only requires precise control of the clamping force to avoid sample damage or slipping, but also requires repeated verification of whether the sample clamping state meets the testing standards. In this testing method, the manual clamping link involves multi-step mechanical operations, which not only consumes a lot of manpower and time costs, but also the complexity of the operation process easily leads to human errors. For example, due to uneven clamping force, the sample clamping state does not meet the standard, etc., the sample test data is distorted and accurate detection cannot be achieved, which is insufficient. Summary of the Invention

[0003] The invention relates to a tensile strength detection device for a thermal transfer film, which solves the problem that the existing tensile strength detection device lacks an intelligent electrical component status verification mechanism before the device is operated.

[0004] The present invention provides a tensile strength testing device for a thermal transfer film, specifically comprising: a testing workbench, wherein a left support block is fixedly mounted on the left edge of the top surface of the testing workbench, and a right support block is fixedly mounted on the right edge of the top surface of the testing workbench; the right support block and the left support block are fixedly connected by two symmetrical limit guide posts; a slider is provided above the testing workbench, and two limit guide holes are symmetrically formed on the left end surface of the slider and penetrate the right end surface thereof, and the limit guide holes are slidably engaged with the limit guide posts; a laser displacement sensor is mounted at the center of the bottom end surface of the slider; a strip block is provided on the right side of the slider, and a group of tension sensors are fixedly mounted between the strip block and the slider; a row of gear teeth are fixedly mounted on the bottom end surface of the strip block in a uniformly distributed manner; a side support plate is fixedly mounted on the right side of the top surface of the slider, and a motor is fixedly mounted on the front end surface of the side support plate; a rotating shaft end of the motor penetrates the rear end surface of the side support plate and is fixedly mounted with a gear, and the gear meshes with the gear teeth.

[0005] Furthermore, the left end face of the right support block is provided with a movable matching opening that passes through the right end face relative to the plug-in strip block; the right end face of the right support block is installed with a control box electrically connected to the upper machine, and the motor is electrically connected to the control box.

[0006] Furthermore, a lower clamping plate a is fixedly installed on the right end face of the left support block, and the top surface of the lower clamping plate a is symmetrical front to back and is fixedly installed with two locking studs a, and a locking nut a is threadedly installed on the locking stud a; an upper clamping plate a is provided above the lower clamping plate a, and the top surface of the upper clamping plate a is symmetrical front to back and is provided with two plug-in holes a passing through its bottom end face, and the plug-in holes a are plugged into and matched with the locking stud a.

[0007] Furthermore, a lower clamping plate b is fixedly installed on the left end face of the slider relative to the lower clamping plate a, and the top surface of the lower clamping plate b is symmetrical in front and back and is fixedly installed with two locking studs b, and a locking nut b is threadedly installed on the locking stud b; an upper clamping plate b is provided above the lower clamping plate b, and the top surface of the upper clamping plate b is symmetrical in front and back and is provided with two plug-in holes b passing through its bottom end face, and the plug-in holes b are plugged into and matched with the locking studs b.

[0008] Furthermore, a plug-in opening is provided at the upper angle of the left end surface of the left support block, which passes through the right end surface; an induction mounting groove is provided on the inner bottom surface of the induction mounting groove, and a group of proximity switches are fixedly installed on the inner bottom surface of the induction mounting groove, and the proximity switches are electrically connected to the control box.

[0009] Furthermore, a plug-in bar is fixedly installed on the left end surface of the slider relative to the plug-in opening, and the plug-in bar is slidably plugged into the plug-in opening; a sensing block that can cooperate with the proximity switch is embedded in the bottom end surface of the plug-in bar.

[0010] Furthermore, a display screen and a confirmation switch are installed on the top surface of the left support block adjacent to the front edge, and the display screen and the confirmation switch are electrically connected to the control box; a flashing warning light is fixedly installed on the front end surface of the left support block, and the flashing warning light is electrically connected to the control box.

[0011] Furthermore, a threaded blind hole is provided on the left end face of the plug-in bar; a main block with a circular block structure is provided on the left side of the plug-in bar, and a stud is fixedly installed on the axial part of the right end face of the main block, and the stud is installed and connected to the threaded blind hole; a spring part is sleeved on the outer periphery of the stud, and the left end of the spring part is fixedly connected to the right end face of the main block; an annular ring is fixedly installed on the outer peripheral surface of the main block through a connecting plate.

[0012] The present invention provides a tensile strength detection device for thermal transfer films, which has the following beneficial effects: The present invention drives the upper clamping plate and the lower clamping plate to cooperate with each other to clamp the two ends of the film material by rotating the locking nut along the thread of the stud, ensuring that the clamping is firm and there is no slippage during the stretching process. Based on the transmission of the motor-driven gear and the gear teeth meshing, the strip block, the tension sensor and the slider are driven to move smoothly along the limit guide column, thereby achieving uniform stretching of the thermal transfer film and avoiding the impact load from interfering with the detection result. During the stretching process, the tension sensor monitors the dynamic tension value of the stretching process in real time, and the laser displacement sensor accurately calculates the displacement of the slider through the time difference of laser reflection. The two types of data are transmitted to the control box via a shielded cable, and uploaded to the host computer after processing by the analog-to-digital conversion module. The dedicated software of the host computer can synchronously analyze the tension and displacement curves, automatically calculate the tensile strength index, provide a quantitative basis for material performance evaluation, and greatly improve the detection efficiency and data reliability.

[0013] The present invention can realize intelligent verification of the status of electrical components used for data collection before the equipment is operated. During the detection, the main block and the plug-in bar are fixed by studs, so that the spring part is compressed to generate simulated tension when the slider moves. The laser displacement sensor normally calculates the displacement of the slider. Based on the inductive feedback of the proximity switch, the control box controls and displays the tension and displacement data in the specific position state. The staff can quickly determine whether the operating status of the tension sensor and the laser displacement sensor is normal by comparing with the standard value, effectively eliminating the influence of equipment failure on the detection results, and ensuring data accuracy. This detection method does not require manual operation to clamp and fix the sample, the operation process is short, and it is highly convenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings of the embodiments are briefly introduced below.

[0015] The drawings described below only relate to some embodiments of the present invention, but are not intended to limit the present invention.

[0016] In the attached figure: Figure 1 Shows a schematic diagram of the right end shaft side structure of the present invention; Figure 2 The present invention shows Figure 1 A schematic diagram of the partially enlarged structure at center A; Figure 3 Shows a schematic diagram of the left end shaft side structure of the present invention; Figure 4 Shows a rear view structural schematic diagram of the present invention; Figure 5 The present invention shows Figure 1 Schematic diagram of the structure with the middle slider and main block removed and the upper clamping plate a disassembled; Figure 6 It shows a schematic diagram of the bottom axonometric structure of the slider and the main block of the present invention when they are separated; Figure 7 It shows a schematic diagram of the top axonometric structure of the slider and the main block of the present invention in a separated state; Figure 8 It shows a partial cross-sectional enlarged structural schematic diagram of the induction installation slot of the present invention; Figure 9 Shown is a block diagram of the system composition of the present invention; Reference Signs List 1. Inspection workbench; 101. Left support block; 102. Right support block; 103. Movable mating opening; 104. Control box; 105. Limit guide post; 106. Lower clamping plate a; 107. Locking stud a; 108. Locking nut a; 109. Upper clamping plate a; 1010. Display screen; 1011. Confirmation switch; 1012. Flashing warning light; 1013. Side support plate; 1014. Motor; 1015. Gear; 1016. Plug opening; 1017. Plug hole a; 1018. Sensor mounting slot; 1019. Proximity switch 2. Slider; 201. Bar block; 202. Tension sensor; 203. Connecting bar block; 204. Lower clamping plate b; 205. Locking stud b; 206. Locking nut b; 207. Upper clamping plate b; 208. Laser displacement sensor; 209. Connecting hole b; 2010. Limit guide hole; 2011. Gear teeth; 2012. Sensor block; 2013. Threaded blind hole; 3. Main block; 301. Annular ring; 302. Connecting plate; 303. Spring member; 304. Stud. DETAILED DESCRIPTION

[0017] To make the purpose, technical solutions, and advantages of the embodiments of the present invention more clear, the technical solutions of the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the described embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0018] Example: Please refer to Figures 1 to 9 : The present invention proposes a tensile strength testing device for thermal transfer film, comprising: a testing workbench 1, a left support block 101 is fixedly installed on the left edge of the top surface of the testing workbench 1, and a right support block 102 is fixedly installed on the right edge of the top surface of the testing workbench 1; the right support block 102 is fixedly connected to the left support block 101 by two limit guide columns 105 which are symmetrical in front and back; a slider 2 is provided above the testing workbench 1, and the left end surface of the slider 2 is symmetrical in front and back and is provided with two limit guide holes 2010 which pass through its right end surface, and the limit guide holes 2010 are slidably plugged into the limit guide columns 105; a laser displacement sensor 208 is installed at the center of the bottom end surface of the slider 2; a strip block 201 is provided on the right side of the slider 2, and a group of tension sensors 202 are fixedly installed between the strip block 201 and the slider 2; the bottom of the strip block 201 A row of gear teeth 2011 is fixedly installed on the end surface in an evenly distributed manner; a side support plate 1013 is fixedly installed on the right side of the top surface of the slider 2, and a motor 1014 is fixedly installed on the front end surface of the side support plate 1013; the rotating shaft end of the motor 1014 passes through the rear end surface of the side support plate 1013 and is fixedly installed with a gear 1015, and the gear 1015 is meshed with the gear teeth 2011; the left end surface of the right support block 102 is provided with a movable matching opening 103 passing through its right end surface relative to the plug-in strip 203. The opening of the movable matching opening 103 facilitates the plug-in strip 203 to move to the right, and the plug-in strip 203 can be inserted through the movable matching opening 103, and the right support block 102 will not cause an obstruction; the right end surface of the right support block 102 is installed with a control box 104 electrically connected to the upper machine, and the motor 1014 is electrically connected to the control box 104.

[0019] Among them, the right end surface of the left support block 101 is fixedly installed with a lower clamping plate a106, and the top surface of the lower clamping plate a106 is symmetrical in front and back and is fixedly installed with two locking studs a107, and the locking studs a107 are threadedly installed with locking nuts a108; an upper clamping plate a109 is provided above the lower clamping plate a106, and the top surface of the upper clamping plate a109 is symmetrical in front and back and is provided with two plugging holes a1017 running through its bottom end surface, and the plugging holes a1017 are plugged into and matched with the locking studs a107; The left end face of block 2 is fixedly installed with a lower clamping plate b204 relative to the lower clamping plate a106. The top surface of the lower clamping plate b204 is symmetrical front to back and is fixedly installed with two locking studs b205, and the locking studs b205 are threadedly installed with locking nuts b206; an upper clamping plate b207 is provided above the lower clamping plate b204, and the top surface of the upper clamping plate b207 is symmetrical front to back and is provided with two plug-in holes b209 passing through its bottom end face, and the plug-in holes b209 are plugged into and matched with the locking studs b205.

[0020] Among them, a plug-in opening 1016 is opened at the upper angle of the left end surface of the left support block 101, which passes through the right end surface of the left support block 101; a sensor installation groove 1018 is opened on the bottom surface of the inner end of the plug-in opening 1016, and a group of proximity switches 1019 are fixedly installed on the bottom surface of the inner end of the sensor installation groove 1018. The proximity switches 1019 are electrically connected to the control box 104; a plug-in bar 203 is fixedly installed on the left end surface of the slider 2 relative to the plug-in opening 1016, and the plug-in bar 203 is connected to the plug-in opening 1016. 16 sliding plug-in fit; a sensing block 2012 that can cooperate with the proximity switch 1019 is embedded in the bottom end surface of the plug-in bar 203; a display screen 1010 and a confirmation switch 1011 are installed on the top surface of the left support block 101 adjacent to the front edge, and the display screen 1010 and the confirmation switch 1011 are electrically connected to the control box 104; a flashing warning light 1012 is fixedly mounted on the front end surface of the left support block 101, and the flashing warning light 1012 is electrically connected to the control box 104.

[0021] Among them, a threaded blind hole 2013 is provided on the left end face of the plug-in block 203; a main block 3 with a circular block structure is provided on the left side of the plug-in block 203, and a stud 304 is fixedly installed on the axial part of the right end face of the main block 3, and the stud 304 is installed and connected to the threaded blind hole 2013; a spring part 303 is sleeved on the outer periphery of the stud 304, and the left end of the spring part 303 is fixedly connected to the right end face of the main block 3; an annular ring 301 is fixedly installed on the outer peripheral surface of the main block 3 through a connecting plate 302. When the stud 304 needs to be rotated along the threaded blind hole 2013, the annular ring 301 can be grasped to rotate the main block 3, thereby synchronously realizing the rotation operation of the stud 304 along the threaded blind hole 2013.

[0022] The working principle of this embodiment is as follows: The steps for testing the tensile strength of thermal transfer film are as follows: Place the two ends of the thermal transfer film on the top surfaces of the lower clamping plate a106 and the lower clamping plate b204 respectively, then use a tool to thread the locking nut a108 downward along the locking stud a107. Under the pressure of the locking nut a108, the upper clamping plate a109 moves downward until it and the lower clamping plate a106 clamp one end of the thermal transfer film together. Similarly, thread the locking nut b206 downward along the locking stud b205. Under the pressure of the locking nut b206, the upper clamping plate b207 moves downward until it and the lower clamping plate b204 clamp the other end of the thermal transfer film together, thereby clamping and fixing the thermal transfer film (at this time, the stud 304 has been disassembled and separated from the threaded blind hole 2013); The motor 1014 is started by controlling the control box 104, and its shaft end drives the gear 1015 to rotate, and the meshing transmission of the gear 1015 and the gear teeth 2011 drives the bar block 201 to move to the right. Since the bar block 201 and the slider 2 are fixedly connected by the tension sensor 202, when the bar block 201 moves, the tension sensor 202 synchronously transmits the traction force, driving the slider 2 to move to the right along the limit guide column 105 through the sliding plug-in cooperation with the limit guide socket 2010 and the limit guide column 105, thereby realizing the stretching operation of the thermal transfer film. During this process, the tension sensor 202 collects the dynamic tension value during the stretching process in real time, and the laser displacement sensor 208 is installed on the bottom end surface of the slider 2, and its transmitting end is aligned with the fixed reference surface. Based on the movement of the slider 2, the laser displacement sensor 2 08 By measuring the time difference of laser reflection, the displacement of the slider 2 is calculated in real time. The signals of the tension sensor 202 and the laser displacement sensor 208 are transmitted to the control box 104 through a shielded cable. After being processed by the internal analog-to-digital conversion module (ADC), they are uploaded to the host computer in real time in the form of digital signals. When the thermal transfer film breaks due to exceeding the ultimate strength, the tension sensor 202 detects that the tension value drops sharply to near zero. At the same time, the laser displacement sensor 208 detects that the slider 2 stops moving. After receiving the abnormal signal, the control box 104 immediately sends a stop command to the motor 1014 to avoid idling loss. The host computer analyzes the collected tension and displacement data through dedicated software and calculates the tensile strength index of the thermal transfer film, providing a quantitative basis for the performance evaluation and quality control of new material thermal transfer films. Furthermore, to ensure the accuracy of the collected data, before testing the tensile strength of the thermal transfer film, the operating status of the tension sensor 202 and the laser displacement sensor 208 can be identified and determined without fixing the sample for testing. The specific operation is as follows: With reference to the above steps, when the slider 2 moves to the right through the meshing transmission of the gear 1015 and the gear teeth 2011, the plug-in block 203 moves to the right synchronously along the plug-in opening 1016. Since the main block 3 and the plug-in block 203 are temporarily fixed together by the threaded installation of the stud 304 and the threaded blind hole 2013, the plug-in block 203 will drive the main block 3 to move synchronously. At this time, the spring member 303 between the main block 3 and the left support block 101 will be compressed. Based on the compression of the spring member 303, a tension value is given to the tension sensor 202, which can collect the dynamic tension value generated during the movement in real time. In this process, the laser displacement sensor 208 calculates the displacement of the slider 2 in real time by measuring the time difference of the laser reflection. As the plug opening 1016 gradually moves to the right, the sensing block 2012, which was originally offset from the sensing installation slot 1018, will move to the sensing installation slot 1018. At this time, the proximity switch 1019 will sense the sensing block 2012, and the proximity switch 1019 will give a feedback signal to the control box 104. The control box 104 will display the collected tension and displacement data on the display screen 1010 and simultaneously control the flashing warning light 1012 to start. The flashing light of the flashing warning light 1012 will remind the staff so that the staff can observe the tension and displacement data displayed on the display screen 1010 and compare them with the initially recorded data (i.e., the tension sensor 202 is in normal operation without fault when the proximity switch 1019 senses the sensing block 2012). The data value collected by the laser displacement sensor 208 is compared with the data value collected by the tension sensor 202 to determine whether the tension sensor 202 and the laser displacement sensor 208 are in normal operation, thereby ensuring the accuracy of the collected data during the subsequent thermal transfer film tensile strength test. After the staff has made the judgment, they can press the confirmation switch 1011 to turn off the flashing warning light 1012 with a feedback signal.

Claims

1. A tensile strength testing device for thermal transfer films, characterized in that: include: A detection workbench (1) is provided, wherein a left support block (101) is fixedly installed at the left edge of the top surface of the detection workbench (1), and a right support block (102) is fixedly installed at the right edge of the top surface of the detection workbench (1); the right support block (102) and the left support block (101) are fixedly connected via two front-to-back symmetrical limiting guide columns (105); a slider (2) is provided above the detection workbench (1), and the left end surface of the slider (2) is symmetrically provided with two limiting guide sockets (2010) penetrating the right end surface thereof, and the limiting guide sockets (2010) are slidably plugged into and matched with the limiting guide columns (105); a slider (2) is provided at the center of the bottom end surface of the slider (2). A laser displacement sensor (208) is installed; a strip block (201) is provided on the right side of the slider (2), and a group of tension sensors (202) are fixedly installed between the strip block (201) and the slider (2); a row of gear teeth (2011) are fixedly installed in a uniformly distributed manner on the bottom end surface of the strip block (201); a side support plate (1013) is fixedly installed on the right side of the top end surface of the slider (2), and a motor (1014) is fixedly installed on the front end surface of the side support plate (1013); the rotating shaft end of the motor (1014) passes through the rear end surface of the side support plate (1013) and is fixedly installed with a gear (1015), and the gear (1015) is meshed with the gear teeth (211).

2. The tensile strength detection device for thermal transfer film according to claim 1, characterized in that: The left end face of the right support block (102) is provided with a movable matching opening (103) that passes through the right end face relative to the plug-in strip block (203); the right end face of the right support block (102) is provided with a control box (104) that is electrically connected to the upper machine, and the motor (1014) is electrically connected to the control box (104).

3. The tensile strength detection device for thermal transfer film according to claim 2, characterized in that: A lower clamping plate a (106) is fixedly mounted on the right end face of the left support block (101), and two locking studs a (107) are fixedly mounted on the top face of the lower clamping plate a (106) in a front-to-back symmetrical shape, and a locking nut a (108) is threadedly mounted on the locking stud a (107); an upper clamping plate a (109) is provided above the lower clamping plate a (106), and two plugging holes a (1017) are provided on the top face of the upper clamping plate a (109) in a front-to-back symmetrical shape, and the plugging holes a (1017) are plugged into and matched with the locking studs a (107).

4. The tensile strength detection device for thermal transfer film according to claim 3, characterized in that: The left end surface of the slider (2) is fixedly mounted with a lower clamping plate b (204) relative to the position of the lower clamping plate a (106), and the top surface of the lower clamping plate b (204) is symmetrical in front and back and fixedly mounted with two locking studs b (205), and the locking studs b (205) are threadedly mounted with locking nuts b (206); an upper clamping plate b (207) is provided above the lower clamping plate b (204), and the top surface of the upper clamping plate b (207) is symmetrical in front and back and is provided with two plugging holes b (209) penetrating its bottom end surface, and the plugging holes b (209) are plugged into and matched with the locking studs b (205).

5. The tensile strength detection device for thermal transfer film according to claim 4, characterized in that: A plug opening (1016) is provided at the upper angle of the left end surface of the left support block (101) and passes through the right end surface thereof; a sensing installation groove (1018) is provided on the inner bottom surface of the sensing installation groove (1018); a group of proximity switches (1019) are fixedly installed on the inner bottom surface of the sensing installation groove (1018), and the proximity switches (1019) are electrically connected to the control box (104).

6. The tensile strength testing device for thermal transfer film according to claim 5, characterized in that: A plug-in strip (203) is fixedly mounted on the left end face of the slider (2) relative to the plug-in opening (1016), and the plug-in strip (203) is slidably plugged into the plug-in opening (1016); and a sensing block (2012) capable of sensing and cooperating with a proximity switch (1019) is embedded in the bottom end face of the plug-in strip (203).

7. The tensile strength detection device for thermal transfer film according to claim 6, characterized in that: A display screen (1010) and a confirmation switch (1011) are installed on the top surface of the left support block (101) adjacent to the front edge, and both the display screen (1010) and the confirmation switch (1011) are electrically connected to the control box (104); a flashing warning light (1012) is fixedly installed on the front surface of the left support block (101), and the flashing warning light (1012) is electrically connected to the control box (104).

8. The tensile strength testing device for thermal transfer film according to claim 7, characterized in that: A threaded blind hole (2013) is provided on the left end face of the plug-in bar (203); a main block (3) with a circular block structure is provided on the left side of the plug-in bar (203); a stud (304) is fixedly installed on the axial center of the right end face of the main block (3); the stud (304) is connected to the threaded blind hole (2013); a spring member (303) is sleeved on the periphery of the stud (304); the left end of the spring member (303) is fixedly connected to the right end face of the main block (3); an annular ring (301) is fixedly installed on the outer peripheral surface of the main block (3) via a connecting plate (302).

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