Friction coefficient detection equipment for medicinal package

Abstract

The invention discloses medicinal package friction coefficient detection equipment, and belongs to the technical field of medicine package detection. The device mainly comprises a detection seat, and a supporting plate is fixedly mounted on the back surface of the detection seat; the detection plate is arranged on the detection seat; the clamping assemblies are installed on the two sides of the detection plate through bolts, a first sliding rod is fixedly installed between the clamping assemblies, and the clamping assemblies are mainly used for clamping the medicine packaging film; the first sliding block is installed on the first sliding rod in a sliding mode. According to the medicinal package friction coefficient detection equipment, the electric heating block, the electric cooling block, the contact block and the friction block are arranged, when medicinal package friction detection is carried out, the temperature of a packaging film located in a non-area can be controlled through the electric heating block and the electric cooling block, and when the friction block makes contact with the packaging film, the friction coefficient of the packaging film is detected. The friction coefficient of the packaging film at different temperatures is detected, so that the friction test on the packaging film at different temperatures is realized.

Description

Technical Field

[0001] The present application relates to the technical field of pharmaceutical packaging detection, and in particular to a pharmaceutical packaging friction coefficient detection device. Background Art

[0002] Pharmaceutical packaging refers to the general term for a process that uses appropriate materials or containers and packaging technology to encapsulate semi-finished or finished pharmaceutical preparations, and provides quality assurance, identification of trademarks and instructions for drugs. Pharmaceutical packaging is an important link in drug production and circulation, and is of great significance for ensuring drug quality and safety. However, before the pharmaceutical packaging materials are packaged, various data need to be tested. Among the many pharmaceutical packaging material testing items, pharmaceutical packaging friction testing can evaluate the friction performance of pharmaceutical materials, which is related to the convenience of subsequent users. If the pharmaceutical packaging friction coefficient is too large, it will be difficult for users to take the drugs out of the packaging film after the drugs are packaged. If the pharmaceutical packaging friction coefficient is too small, the drugs will easily slip off the packaging film, making it inconvenient to use. Therefore, friction testing of pharmaceutical packaging materials is an indispensable part of many testing projects.

[0003] Existing pharmaceutical packaging friction coefficient detection devices usually consist of a base, a clamp, a drive assembly and a friction assembly. The staff places the pharmaceutical packaging film on the base and clamps one end of the packaging film with the clamp, and then starts the drive assembly to move the friction assembly. The friction assembly contacts the packaging film during the movement, and the electrical components in the friction assembly record the friction process and data, thereby completing the friction detection of the pharmaceutical packaging.

[0004] Although the above-mentioned device realizes the friction detection of drug packaging, due to the wide range of drug use, drugs will be circulated to different regions after production. The ambient temperature in different regions will also change due to the change of time and seasons. As the temperature changes, the molecular movement of the drug packaging film will speed up or slow down at different temperatures. When the weather is hot, the molecular movement of the drug packaging film will speed up and the interaction between molecules will weaken, so that the friction coefficient will decrease, and the drug can be taken out of the packaging film more easily. On the contrary, when the weather is cold, the friction coefficient of the drug packaging film will increase. The existing drug packaging friction coefficient detection equipment cannot perform friction detection on packaging films at different temperatures. Therefore, it is necessary to provide a drug packaging friction coefficient detection equipment to solve the above problems.

[0005] It should be noted that the above information disclosed in this background technology section is only for understanding the background technology of the present application concept, and therefore, it may contain information that does not constitute the prior art. Summary of the invention

[0006] Based on the above problems existing in the prior art, the problem to be solved by the present application is: to provide a friction coefficient detection device for medicinal packaging, which solves the problem that the existing friction coefficient detection device for medicinal packaging cannot perform friction detection on packaging films at different temperatures.

[0007] The technical solution adopted by the present application to solve its technical problem is: a drug packaging friction coefficient detection device, comprising a detection seat, a support plate is fixedly installed on the back of the detection seat; a detection plate, the detection plate is arranged on the detection seat; a clamping assembly, the clamping assembly is installed on both sides of the detection plate by bolts, a first slide bar is fixedly installed between the clamping assemblies, the clamping assembly is mainly used to clamp the drug packaging film; a first slider, the first slider is slidably installed on the first slide bar, a connecting block is installed on one side of the first slider, a contact block is fixedly installed on the bottom of the connecting block, and a slide groove is provided at the bottom of the contact block; a friction block, the friction block slides The electric cooling block and the electric heating block are both turned on or off by electric control. When the electric cooling block and the electric heating block are turned on, the drug packaging film in different areas will be cooled or heated. When the friction block slides over the area, the friction coefficient of the drug packaging film at different temperatures is detected.

[0008] The cam is secured to the bottom of the second support bracket and is designed to be connected to the control stand by a threaded connection. The cam is secured on the bottom of the second support bracket and is designed to be connected to the control stand by a threaded connection.

[0009] Furthermore, the telescopic rod includes a sleeve fixedly mounted on one end of the universal shaft, a limit block is slidably mounted in the sleeve, a connecting rod is fixedly mounted on the side of the limit block away from the universal shaft, the connecting rod is rotatably connected to the rotating rod, and the inner diameter of the sleeve opening is smaller than the outer diameter of the limit block and forms a limit step with the inner cavity of the sleeve.

[0010] Furthermore, a bracket is fixedly installed on one side of the detection seat, a motor is fixedly installed on the bracket, a rotating shaft is fixedly installed on the output end of the motor, the rotating shaft passes through the detection plate and is movably connected to the other end of the detection seat through a bearing, and the detection plate is fixedly connected to the rotating shaft.

[0011] Furthermore, side sliding blocks are fixedly installed on both sides of the friction block, and auxiliary sliding blocks adapted to the side sliding blocks are opened on both sides of the sliding groove. The sliding groove and the auxiliary sliding groove are both inclined upward in a direction close to the universal shaft.

[0012] Furthermore, the top of the driving block is supported by a flexible material, both sides of the protrusion are provided with a first vertical surface, the bottom of the first vertical surface is provided with a second inclined surface, and the bottom of the second inclined surface is provided with a third horizontal surface.

[0013] Furthermore, a fixing component is fixedly installed on the back of the detection seat, and the structure of the fixing component is the same as that of the universal joint. A limit pin is fixedly installed on one side of the fixing component, and a limit groove is provided on one side of the moving block. The limit groove includes a first slideway provided on the moving block, and one end of the limit pin is abutted in the first slideway to form an abutting end, and a second slideway is provided at the end of the first slideway. The groove bottom height of the second slideway is lower than the groove bottom height of the first slideway and forms a first step, and a first stationary point is provided at the position where the first slideway communicates with the second slideway.

[0014] Furthermore, a third slide is provided at the end of the second slide, the groove bottom height of the third slide is lower than the groove bottom height of the second slide and forms a second step, a second stationary point is provided at the position where the second slide is connected to the third slide, a fourth slide is provided at the end of the third slide, the groove bottom height of the fourth slide is lower than the groove bottom height of the third slide and forms a third step, a third stationary point is provided at the position where the third slide is connected to the fourth slide, the end of the fourth slide is connected to the first slide, and a transition slope is provided at the end of the fourth slide, the highest position of the transition slope is higher than the groove bottom height of the first slide and forms a transition step.

[0015] Furthermore, a fifth slide is provided at the second stationary point, the other end of the fifth slide is connected to the fourth slide, the bottom height of the fifth slide is higher than the bottom height of the fourth slide and forms a fourth step, and a lifting block is provided at the initial end of the fifth slide, and the lifting block is lifted or lowered by electric control.

[0016] Furthermore, a PLC control system is provided in the detection seat, a first switch is provided at the first stationary point, the first switch is connected to the motor signal, a second switch is provided at the other end of the slide slot, the second switch is connected to the lifting block signal, a third switch is provided at the third stationary point, the third switch is connected to the motor signal, a signal light is installed on the detection seat, and the signal light is connected to the lifting block signal.

[0017] The beneficial effect of the present application is that the present application provides a medicinal packaging friction coefficient detection device, which is provided with an electric heating block, an electric cooling block, a contact block and a friction block. When conducting medicinal packaging friction detection, the electric heating block and the electric cooling block can be used to control the temperature of the packaging film in an uncontrolled area. When the friction block contacts the packaging film, the friction coefficient detected is different from that of the packaging film at normal temperature, thereby realizing friction testing of the packaging film at different temperatures, and the detection results are more in line with actual usage scenarios.

[0018] In addition to the above-described purposes, features and advantages, the present application also has other purposes, features and advantages. The present application will be further described in detail with reference to the drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The drawings constituting part of the present application are used to provide a further understanding of the present application. The exemplary embodiments and descriptions of the present application are used to explain the present application and do not constitute an improper limitation on the present application. In the drawings: Figure 1 This is an overall schematic diagram of a friction coefficient testing device for pharmaceutical packaging in this application; Figure 2 for Figure 1 Side view of the overall structure; Figure 3 for Figure 2 A magnified view of the structure of the middle A area; Figure 4 for Figure 1 A schematic diagram of a partial cross-section of the overall structure; Figure 5 for Figure 4 A magnified view of the structure of the middle B area; Figure 6 for Figure 3 A magnified view of the structure of the middle C region; Figure 7 for Figure 5 A magnified view of the structure of the middle D region; Figure 8 for Figure 3 Schematic diagram of the overall structure of the moving block and the limit pin; Fig. 9 for Figure 8 Side view of the overall structure.

[0020] Among them, the reference numerals in the figure are: 1. Detection seat; 2. Detection plate; 21. Clamping assembly; 22. First slide bar; 23. First slider; 231. Connecting block; 232. Contact block; 233. Slide groove; 234. Friction block; 235. Side slider; 236. Rotating rod; 24. Electric cooling block; 25. Electric heating block; 3. Bracket; 31. Motor; 4. Telescopic rod; 41. Sleeve; 42. Connecting rod; 43. Limit block; 44. Limit step; 5. Universal shaft; 6. Support plate; 61. Cylinder; 62. Slide rail; 63. Second slide block; 64. Driving block; 65. Fixing pin; 66. Second slide rod; 67. Sliding sleeve; 7, moving block; 71, vertical rod; 72, convex block; 721, first vertical surface; 722, second inclined surface; 723, third horizontal surface; 8. Limiting groove; 81. First slide; 82. Second slide; 83. Third slide; 84. Fourth slide; 85. Fifth slide; 86. First stationary point; 87. Second stationary point; 88. Third stationary point; 89. Transition slope; 810. Lifting block; 9. Fixing assembly; 91. Limit pin. DETAILED DESCRIPTION

[0021] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present application can be combined with each other. The present application will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0022] In order to enable those skilled in the art to better understand the solution of the present application, the technical solution in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the present application.

[0023] Embodiment 1: This embodiment mainly introduces the basic structure and working principle of the friction coefficient detection device for pharmaceutical packaging, specifically: like Figure 1 As shown, the present application provides a medicinal packaging friction coefficient detection device, including a detection seat 1, which is the main part of the medicinal packaging friction coefficient detection device, and a PLC control system is arranged inside the detection seat 1 to facilitate subsequent friction detection operations; A detection plate 2 is fixedly mounted on the detection seat 1, and the medicinal packaging film is suitable for being placed on the detection plate 2. Clamping components 21 are connected to both sides of the detection plate 2 by bolts. The clamping components 21 are tightened or loosened by bolts, and the area between the clamping components 21 can be defined as the detection area. After the medicinal packaging film is placed on the detection plate 2, its two ends are clamped by the clamping components 21. A first slide bar 22 is fixedly installed between the clamping components 21, and a first slider 23 is slidably installed on the first slide bar 22. When the first slider 23 is subjected to an external force, it can slide on the first slide bar 22; like Figure 4-Figure 5 , Figure 7 As shown, a connecting block 231 is installed on one side of the first slider 23, a contact block 232 is fixedly installed at the bottom of the connecting block 231, and a friction block 234 is fixedly installed at the bottom of the contact block 232. When the drug packaging film is placed on the detection plate 2 and fixed by the clamping assembly 21, the bottom of the friction block 234 contacts the drug packaging film. In the present application, the friction block 234 can be partially made of drugs, and its quality and surface material are similar to those of drugs, mainly to simulate the scene of the drug contacting the drug packaging film during packaging, and the friction block 234 is connected to the PLC control system signal to record the friction sliding process between the friction block 234 and the drug packaging film. When the bottom of the friction block 234 contacts the medicinal packaging film, the staff can manually push the first slider 23 from one end to the other end of the detection plate 2. During this process, the friction block 234 slides on the medicinal packaging film and transmits the friction data to the PLC control system. Finally, the PLC control system feeds back the test results to the detection seat 1. The staff can understand the friction coefficient of the medicinal packaging film sample by observing the test data. When the staff manually pushes the first slider 23, it is inevitable that the speed and thrust of the first slider 23 cannot be kept constant during the movement. Figure 2-Figure 3 As shown, a support plate 6 is fixedly mounted on the back of the detection seat 1, a cylinder 61 is fixedly mounted on the support plate 6, and a horizontal slide rail 62 is also fixedly mounted on the support plate 6, a second slider 63 is slidably mounted on the slide rail 62, and when the second slider 63 is subjected to an external force, it is suitable for moving in the horizontal direction along the slide rail 62; A driving block 64 is fixedly mounted on the second slider 63, and the output end of the cylinder 61 is fixedly connected to one side of the driving block 64, so that when the cylinder 61 is started, it is suitable for driving the driving block 64 to slide on the slide rail 62. Fixed pins 65 are fixedly mounted on both sides of the back of the detection seat 1, and a second slide bar 66 arranged in the same direction as the slide rail 62 is fixedly mounted between the fixed pins 65. At the same time, a sliding sleeve 67 is slidably mounted on the surface of the second slide bar 66, and a moving block 7 is fixedly mounted on the outer ring of the sliding sleeve 67. When the moving block 7 is subjected to external force, it is suitable for horizontal movement on the second slide bar 66; like Figure 3 , Figure 8 As shown, a protrusion 72 is integrally provided on one side of the bottom of the moving block 7, and one side of the protrusion 72 contacts the driving block 64, so that when the cylinder 61 is started and its output end extends, it will drive the driving block 64 to move, and the movement of the driving block 64 will push the protrusion 72, so that the moving block 7 will move synchronously; Continue to refer Figure 3 and Figure 6 A vertical rod 71 is fixedly installed on the top of the moving block 7, and a telescopic rod 4 is fixedly installed on one side of the upper end of the vertical rod 71, and the other side of the telescopic rod 4 is fixedly connected to the first sliding block 23, so that when the moving block 7 moves, it will drive the vertical rod 71 to move, and the movement of the vertical rod 71 will synchronously drive the telescopic rod 4 to move, and the movement of the telescopic rod 4 will drive the first sliding block 23 to move synchronously, thereby driving the friction block 234 to move, so as to achieve the purpose of driving the friction block 234 to move at a uniform speed through the cylinder 61, and the thrust of the cylinder 61 is constant, which can be used as a standard for friction detection thrust to obtain more accurate detection data, and at the same time, the motion trajectory of each connection is limited by the first sliding bar 22, the slide rail 62 and the second sliding bar 66, and the motion trajectory of the friction block 234 is further limited to avoid deviation from the previous motion trajectory during the movement; In order to make the friction coefficient testing equipment for pharmaceutical packaging able to perform friction testing on pharmaceutical packaging films at different temperatures, such as Figure 1 As shown, an electric heating block 25 and an electric cooling block 24 are respectively fixedly mounted on the detection plate 2, and the electric heating block 25 and the electric cooling block 24 are both turned on or off by electric control. When the electric heating block 25 and the electric cooling block 24 are turned on, the temperature of the medicinal packaging film on the electric heating block 25 will increase due to the action of the electric heating block 25, while the temperature of the medicinal packaging film on the electric cooling block 24 will decrease. When the friction block 234 slides over the area, the friction coefficient of the medicinal packaging film at different temperatures is detected; It should be noted that in summer, the temperature in some local areas will rise due to seasonal changes, and the temperature of the medicinal packaging film located in the area of ​​the electric heating block 25 will rise as the electric heating block 25 is started, thereby simulating the scene in which the medicinal packaging film is placed in a high temperature environment in summer. At this time, when the friction block 234 slides on the medicinal packaging film, it simulates the scene in which the drug user takes the drug out of the packaging film in summer, and detects the friction coefficient of the packaging film when the temperature is high. The electric cooling block 24 area simulates the scene in which the drug user takes the drug out of the packaging film in winter, and thus detects the friction coefficient of the packaging film when the temperature is low, so that the detection results of the friction detection operation are more in line with the actual usage scenario.

[0024] Embodiment 2: The above embodiment partially heats and cools the drug packaging film by providing an electric heating block 25 and an electric cooling block 24, and detects the friction of the packaging film by contacting the packaging film with the friction block 234. However, when the drug is stationary in the packaging film, there is static friction between the drug and the packaging film. When the user takes the drug out of the packaging film, there is dynamic friction between the drug and the packaging film. In the above embodiment, the friction block 234 is driven by the cylinder 61 to slide on the packaging film, which simulates the dynamic friction when the drug is taken out of the packaging film. In order to further detect the static friction of the drug when it is stationary in the packaging film, in this embodiment, the structure of the first embodiment is partially improved, specifically: Figure 1 As shown, a bracket 3 is fixedly installed on one side of the detection seat 1, and a motor 31 is fixedly installed on the bracket 3. A rotating shaft (not shown in the figure) is fixedly installed on the output end of the motor 31. The rotating shaft passes through the detection plate 2 and is movably connected to the other end of the detection seat 1 through a bearing. First, different from the first embodiment, the detection plate 2 is fixedly connected to the detection seat 1 in the first embodiment, while in the present embodiment, the detection plate 2 is fixedly connected to the rotating shaft. In the initial state, as shown in FIG. Figure 1 As shown, the detection plate 2 is in a horizontal position. When the motor 31 is started, the shaft rotates, driving the detection plate 2 to rotate synchronously. It can be understood that, in the initial state, the detection plate 2 is in a horizontal state, and the friction block 234 is located above the packaging film and in contact with the packaging film. When the detection plate 2 is turned over and in a vertical state, one side of the friction block 234 is also in contact with the packaging film, but at this time the friction block 234 itself has a certain weight. If the friction force of the packaging film is small at this time, the friction block 234 will slide downward; This scenario simulates whether the medicine will fall out of the packaging film when it is in a static state in the packaging film. In the real scenario, the medicine after unpacking may not be completely wrapped by the packaging film. When the user picks up the packaging film, if the medicine is in a vertical downward state at this time, the medicine will not fall out of the packaging film due to the large static friction of the packaging film, thereby facilitating the use of the medicine user. Therefore, it is necessary to detect the static friction between the packaging film and the medicine. However, when the detection plate 2 deflects, the other components connected to the first slider 23 need to deflect synchronously. How the other components achieve synchronous deflection is described below. In order to achieve synchronous deflection of the remaining components and the detection board 2, the difference from the first embodiment is that Figure 3 and Figure 6 As shown, in the first embodiment, the vertical rod 71 is fixedly connected to the telescopic rod 4, and the other end of the telescopic rod 4 is also fixedly connected to the first slider 23. At the same time, the structure of the telescopic rod 4 is not limited. In this embodiment, a universal shaft 5 is fixedly installed at one end of the vertical rod 71, and one end of the universal shaft 5 is a fixed end fixedly connected to the vertical rod 71, and the other end of the universal shaft 5 is a movable end fixedly connected to the telescopic rod 4. The telescopic rod 4 includes a sleeve 41 fixedly connected to the movable end of the universal shaft 5, a limit block 43 is slidably installed in the sleeve 41, a connecting rod 42 is fixedly installed on the side of the limit block 43 away from the universal shaft 5, a rotating rod 236 is fixedly installed on the side of the first slider 23 close to the telescopic rod 4, the other end of the connecting rod 42 is rotatably connected to the rotating rod 236, and the inner diameter of the opening of the sleeve 41 is smaller than the outer diameter of the limit block 43 and forms a limit step 44 with the inner cavity of the sleeve 41, so that the limit block 43 can only slide in the sleeve 41 and will not fall out of the sleeve 41; When the detection board 2 is turned over by the motor 31, the turning process is as follows: Figure 1 Taking the middle angle as an example, the detection plate 2 flips counterclockwise. During this process, the first slider 23 and the friction block 234 deflect synchronously. Since the connecting rod 42 and the rotating rod 236 are rotationally connected, and the sleeve 41 is fixedly connected to the movable end of the universal shaft 5, the telescopic rod 4 can adapt to the flipping of the detection plate 2. When the detection plate 2 flips counterclockwise by 90 degrees, the friction block 234 and the packaging film are in a vertical state. At this time, the distance between the first slider 23 and the fixed end of the universal shaft 5 will change relative to the initial state. For this reason, the connecting rod 42 extends from the sleeve 41 to adapt to the change in the distance between the first slider 23 and the vertical rod 71. Therefore, when the detection plate 2 deflects, the fixed end of the universal shaft 5 and the area of ​​the vertical rod 71 remain fixed, while the two ends of the telescopic rod 4 will adaptively deflect at an angle, and at the same time, the connecting rod 42 extends to adapt to the change in the distance between the first slider 23 and the universal shaft 5, thereby preventing the remaining connection components from getting stuck after the detection plate 2 deflects; In order to detect the static friction of the packaging film, Figure 7 As shown, in this embodiment, different from the embodiment 1, a slide groove 233 is provided at the bottom of the contact block 232, the friction block 234 is slidably installed in the slide groove 233, and side sliders 235 are fixedly installed on both sides of the friction block 234, and auxiliary slide grooves (not shown in the figure) adapted to the side sliders 235 are provided on both sides of the slide groove 233. When the friction block 234 slides in the slide groove 233, the side slider 235 slides in the auxiliary slide groove, which is mainly to keep the friction block 234 stable during the sliding process and prevent it from easily detaching from the slide groove 233; It should be noted that the slide groove 233 and the auxiliary slide groove are both inclined, and are inclined upward in the direction close to the universal shaft 5. In the initial state, due to its own gravity and the action of the slide groove 233, the friction block 234 will slide in the direction away from the universal shaft 5. When the detection plate 2 is turned over by the motor 31, the friction block 234 becomes a vertical state. If the static friction between the friction block 234 and the packaging film is small at this time, the friction block 234 will slide toward the other side of the slide groove 233. During the detection process, if the friction block 234 slides to the other end of the slide groove 233, it means that the friction of the packaging film is small and the product is unqualified. Furthermore, during the above friction detection process, the turning of the detection plate 2 and the movement of the friction block 234 are controlled by the cylinder 61 and the motor 31 separately. The staff needs to control the opening and closing of the cylinder 61 and the motor 31 at the appropriate time. In order to solve this problem, Figure 3 , Figure 8-Figure 9 As shown, a limit groove 8 is provided on one side of the moving block 7, and a fixing assembly 9 is fixedly installed on the back of the detection seat 1. The fixing assembly 9 mainly consists of a mounting end fixedly connected to the detection seat 1 and a hinged end hingedly installed on the mounting end. The structure is the same as that of the universal shaft 5. A limit pin 91 is fixedly installed on the hinged end, and the limit pin 91 is used in conjunction with the limit groove 8. The limiting groove 8 includes a first slideway 81 formed on the moving block 7, and the side of the limiting pin 91 away from the hinge end is abutted in the first slideway 81 (with a Figure 8 For the convenience of description, the end of the limit pin 91 abutting against the first slideway 81 is defined as the abutting end, and the position of the abutting end at this time is defined as the initial position. In this embodiment, the abutting end is made of a flexible material, and when the abutting end abuts against the first slideway 81, it is already in an extruded state; When the cylinder 61 is started to drive the driving block 64 to move forward, due to the contact between the driving block 64 and the protrusion 72, the moving block 7 will move forward synchronously under the action of the driving block 64, and at this time, the limit pin 91 will slide in the first slideway 81 to perform relative movement; A second slideway 82 is provided at the end of the first slideway 81. The groove bottom height of the second slideway 82 is lower than the groove bottom height of the first slideway 81 and forms a first step (not shown in the figure). Therefore, when the stop pin 91 enters the second slideway 82 from the first slideway 81, due to the restriction of the first step, the stop pin 91 cannot return from the second slideway 82 to the first slideway 81. A first stationary point 86 is provided at the position where the first slideway 81 and the second slideway 82 communicate with each other. A third slideway 83 is provided at the end of the second slideway 82. The groove bottom height of the third slideway 83 is lower than the groove bottom height of the second slideway 82 and forms a second step. When the stop pin 91 slides from the second slideway 82 into the third slideway 83, due to the restriction of the second step, the stop pin 91 cannot return from the third slideway 83 to the second slideway 82. At the same time, a second stationary point 87 is provided at the position where the second slideway 82 and the third slideway 83 communicate. In the first embodiment, the structures of the protrusion 72 and the driving block 64 are not limited. In this embodiment, the top of the driving block 64 is made of a flexible material, which will be compressed when squeezed. At the same time, both sides of the protrusion 72 are provided with a first vertical surface 721, a second inclined surface 722 is provided at the bottom of the first vertical surface 721, and a third horizontal surface 723 is provided at the bottom of the second inclined surface 722. In the initial state, as shown in FIG. Figure 8 As shown in , the side surface of the driving block 64 contacts the first vertical surface 721. At this time, the cylinder 61 starts to drive the driving block 64 to move. The driving block 64 can push the moving block 7 to move synchronously. When the moving block 7 is restricted and cannot continue to move, but the stroke of the cylinder 61 is fixed, it will continue to push the driving block 64 forward. At this time, the first vertical surface 721 will produce a relative squeezing force on the top of the driving block 64. Under the continuous thrust, the top of the driving block 64 will be squeezed and compressed, and it will successively contact the second inclined surface 722 and the third horizontal surface 723. When the top of the driving block 64 contacts the third horizontal surface 723, the top of the driving block 64 is squeezed to the maximum extent. Then the driving block 64 will go over the protrusion 72 and continue to move forward, and the moving block 7 will pause in place after losing the force. A first switch for controlling the motor 31 to start is provided at the first stationary point 86. The first switch is connected to the PLC control system signal. When the abutting end contacts the first switch, the motor 31 is controlled to start, and the output end of the motor 31 rotates counterclockwise 90 degrees (in degrees). Figure 1 middle perspective as an example); refer to Figure 8-Figure 9, when the cylinder 61 starts to drive the driving block 64 to move forward, the driving block 64 pushes the protrusion 72 to drive the moving block 7 to move continuously, and the limit pin 91 moves from the initial position to the first stationary point 86. When reaching the first stationary point 86, the driving block 64 will continue to move forward, but due to the action of the limit pin 91, the moving block 7 can no longer move forward. At the same time, the extrusion force of the driving block 64 on the protrusion 72 will gradually increase, and then the top of the driving block 64 will be squeezed. The top of the driving block 64 is initially in contact with the first vertical surface 721. After squeezing, the top of the driving block 64 successively contacts the second inclined surface 722 and the third horizontal surface 723. The driving block 64 passes over the protrusion 72 and continues to move forward. After no external force is applied, the moving block 7 no longer moves forward, and the limit pin 91 also stays at the first stationary point 86. When the limit pin 91 moves relatively in the first slideway 81, the friction block 234 contacts and slides with the packaging film on the detection plate 2. When the limit pin 91 approaches the first stationary point 86, the friction block 234 has reached the top of the electric cooling block 24, and moves on the packaging film in the relatively low temperature area to detect its friction coefficient. When the limit pin 91 reaches the first stationary point 86, the friction block 234 stops moving, and the first switch controls the motor 31 to turn on. The motor 31 drives the detection plate 2 to deflect, and the detection plate 2 deflects from the initial horizontal state to the vertical placement state. During the deflection process, the universal shaft 5 and the telescopic rod 4 adapt to the deflection of the detection plate 2 to ensure that the vertical rod 71 can maintain connection with the first slider 23 without being stuck. When the friction block 234 is deflected by the detection plate 2, it will also be in a vertical state. Due to its own weight, if there is no external force, the friction block 234 will slide in the slide groove 233 toward the other end of the slide groove 233. However, since the packaging film has a certain static friction, if the friction block 234 does not slide toward the other end of the slide groove 233 at this time, it means that the static friction of the packaging film is qualified. In winter, the molecular movement of the packaging film is slow, and the friction coefficient of the packaging film is relatively large at this time. However, in the vertical state, the medicine will still fall vertically from the packaging film, reflecting that the friction coefficient of the packaging film is too low. On the contrary, if the friction block 234 remains motionless in the vertical state, it means that the static friction of the packaging film is temporarily qualified. Continue to refer Figure 8-Figure 9 A fourth slideway 84 is provided at the end of the third slideway 83. The groove bottom height of the fourth slideway 84 is lower than the groove bottom height of the third slideway 83 and forms a third step. When the limit pin 91 slides from the third slideway 83 into the fourth slideway 84, due to the restriction of the third step, the limit pin 91 cannot return from the fourth slideway 84 to the third slideway 83, and a third stationary point 88 is provided at the position where the third slideway 83 and the fourth slideway 84 communicate with each other; The end of the fourth slideway 84 is connected to the first slideway 81, and a transition slope 89 is provided at the end of the fourth slideway 84. The highest position of the transition slope 89 is higher than the groove bottom height of the first slideway 81 and forms a transition step, so that when the limit pin 91 slides in the first slideway 81, it cannot directly enter the fourth slideway 84, and the limit pin 91 can directly return from the fourth slideway 84 to the first slideway 81; At the same time, a fifth slide 85 is provided at the second stationary point 87, the other end of the fifth slide 85 is connected to the fourth slide 84, and the groove bottom height of the fifth slide 85 is higher than the groove bottom height of the fourth slide 84 and forms a fourth step, so that when the limit pin 91 slides in the fourth slide 84, due to the limitation of the fourth step, the limit pin 91 cannot return to the fifth slide 85, and a lifting block 810 is provided at the initial end of the fifth slide 85 (i.e., the second stationary point 87 position), and the lifting block 810 is lifted or lowered by electric control. When it is lifted, its top protrudes from the groove bottom of the fifth slide 85, and the limit pin 91 cannot enter the fifth slide 85. When it is lowered, the top of the lifting block 810 is flush with the groove bottom of the fifth slide 85, and the limit pin 91 can directly enter the fifth slide 85 from the second stationary point 87 position and directly return to the first slide 81; For the convenience of detection, a second switch is provided on the other side of the slide slot 233, and the second switch is mainly used to control the lifting block 810 to rise or fall. When in the working state, the lifting block 810 remains in the raised state. If the friction block 234 slides to the other end of the slide slot 233, it contacts the second switch, and the second switch controls the lifting block 810 to fall. At this time, the limit pin 91 can enter the fifth slideway 85. The third stationary point 88 is also provided with a control motor 31 to rotate counterclockwise by ninety degrees (with Figure 1 The third switch for rotating (based on the viewing angle) has the same function as the first switch. When the limit pin 91 reaches the third stationary point 88, it contacts the third switch, the motor 31 starts to rotate, and the detection plate 2 rotates to a vertical state driven by the motor 31; It should be noted that the first switch and the third switch are both contact switches. When the limit pin 91 contacts the first switch or the third switch, the motor 31 is started, and its output end stops after rotating to a specified angle. When the limit pin 91 is separated from the first switch or the third switch, the output end of the motor 31 rotates back, and when the output end of the motor 31 returns to the initial state, the motor 31 is turned off. When the output end of the cylinder 61 extends to the limit position, the PLC control system controls the output end of the cylinder 61 to retract. During the retraction process, the driving block 64 contacts the other side of the protrusion 72 and exerts a squeezing force on it. At the same time, the moving block 7 retracts under the action of the driving block 64, and the limit pin 91 continues to slide from the first stationary point 86 into the second slideway 82, and continues to slide to the second stationary point 87. When the limit pin 91 leaves the first stationary point 86, the motor 31 starts to rotate, driving the detection plate 2 to rotate, until the detection plate 2 and the friction block 234 return to their initial horizontal placement. When the limit pin 91 reaches the second stationary point 87, there are two situations. If the static friction force test of the packaging film fails, when the friction block 234 slides to the other end of the slide groove 233, the second switch will be activated to drive the lifting block 810 to descend, so that the limit pin 91 is suitable for directly entering the fifth slideway 85 from the second stationary point 87. With the continuous action of the driving block 64, the moving block 7 continues to retreat, and the limit pin 91 slides in the fifth slideway 85, and continues to slide into the fourth slideway 84, and finally returns to the initial position of the first slideway 81 through the transition slope 89. When the limit pin 91 returns to the initial position, the output end of the cylinder 61 does not return to the initial state, and it will continue to retreat until the driving block 64 passes over the protrusion 72 and returns to the initial position. At this time, the cylinder 61 also returns to the initial state to facilitate the next detection. If the static friction force of the packaging film is temporarily qualified when it is placed vertically, the friction block 234 remains stationary, and the second switch is not triggered. The lifting block 810 remains in the raised state. When the limit pin 91 reaches the second stationary point 87, the limit pin 91 cannot continue to move relatively due to the restriction of the lifting block 810. However, the driving block 64 continues to work and it will go over the protrusion 72 and continue to retreat, while the moving block 7 remains stationary, and the limit pin 91 stays at the second stationary point 87. After the packaging film is temporarily qualified, the cylinder 61 is started again to further test the packaging film. The output end of the cylinder 61 extends to push the driving block 64 forward. When the driving block 64 moves forward, it will contact the protrusion 72 for the second time and generate a squeezing force on the protrusion 72, so that the moving block 7 will move forward synchronously. In this process, the limit pin 91 enters the third slideway 83 from the second stationary point 87 and slides relatively until it reaches the third stationary point 88. After reaching the third stationary point 88, the output end of the cylinder 61 will continue to act until the driving block 64 passes over the protrusion 72 and reaches the other side thereof, so as to facilitate the subsequent resetting of the moving block 7. During this process, the friction block 234 slides from above the electric cooling block 24 to above the electric heating block 25, and moves on the packaging film in the relatively high temperature area to detect its friction coefficient. When the limit pin 91 reaches the third stationary point 88, the third switch is triggered to control the motor 31 to continue to deflect. The detection plate 2 is deflected from the horizontal placement state to the vertical placement state under the drive of the motor 31. At the same time, the friction block 234 is also deflected to the vertical state. At this time, the friction block 234 is also in the vertical state, but due to the static friction of the packaging film, the friction block 234 does not slide toward the other end of the slide groove 233, indicating that the static friction of the packaging film is qualified. Even in summer, when the user disassembles the packaging film, the medicine will not fall from the packaging film when it is in the vertical state; Meanwhile, in the above process, when the limit pin 91 slides in the first slideway 81, the second slideway 82 and the third slideway 83, the friction coefficient between the friction block 234 and the packaging film is qualified, indicating that the static friction of the packaging film can still be qualified when the temperature is high, and when an external force is applied, the friction block 234 slides on the packaging film, and its dynamic friction is also qualified, thereby facilitating the use of subsequent users; When the limit pin 91 reaches the third stationary point 88, the packaging film friction detection is completed, and the output end of the cylinder 61 retreats, and the output end of the cylinder 61 drives the driving block 64 to rebound synchronously, and the driving block 64 squeezes the protrusion 72, so that the moving block 7 retreats synchronously. At the same time, the limit pin 91 leaves the third stationary point 88 and enters the fourth slideway 84. When the limit pin 91 leaves the third stationary point 88, the limit pin 91 is separated from the third switch, and the motor 31 starts to rotate, driving the detection plate 2 and the friction block 234 to rotate from the vertical placement state to the horizontal placement state; As the cylinder 61 continues to act, the limit pin 91 continues to slide in the fourth slideway 84, and then the limit pin 91 returns to the first slideway 81 through the transition slope 89, and finally returns to the initial position of the first slideway 81, and the moving block 7 returns to the initial state. When the limit pin 91 returns to the initial position, the output end of the cylinder 61 continues to retreat until the driving block 64 passes over the protrusion 72, and the cylinder 61 also returns to the initial state at this time, so as to facilitate the next friction detection; However, in the above process, when the limit pin 91 reaches the third stationary point 88 and triggers the third switch, with the deflection of the detection plate 2 and the change of the temperature of the packaging film, the friction block 234 may slide to the other end position of the slide groove 233 and contact the second switch, indicating that the static friction of the packaging film is unqualified when the relative temperature is high, but then the limit pin 91 also retreats from the fourth slide 84 to the initial position, which is not convenient for the staff to judge. Therefore, in this embodiment, the staff can install a signal light on the detection seat 1, and the signal light is connected to the lifting block 810 signal. When the lifting block 810 descends, the signal light will light up. Therefore, during the detection process of the packaging film, if the initial detection fails, the staff can judge whether the static friction of the packaging film is qualified at different temperatures by observing the position where the moving block 7 stops and the signal light. After the secondary detection, the staff can judge whether the static friction of the packaging film is qualified when the relative temperature is high by observing the signal light. During the two detection processes, the friction block 234 rubs and slides on the packaging film in a horizontal state. It only detects the packaging film at different temperatures after reaching the designated area. The output end of the motor 31 will return to the initial state after each rotation. When detecting the dynamic friction and static friction of the packaging film, the friction block 234 and the packaging film are in a horizontal or vertical state. In this way, the friction coefficient detection result of the medicinal packaging can be more accurate.

[0025] The above description is only the preferred embodiment of the present application and is not intended to limit the present application. For those skilled in the art, the present application may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A friction coefficient testing device for medicinal packaging, characterized in that: include: A detection base (1), a support plate (6) being fixedly mounted on the back side of the detection base (1); A detection plate (2), the detection plate (2) being arranged on the detection seat (1); A clamping assembly (21), the clamping assembly (21) being mounted on both sides of the detection plate (2) by means of bolts, a first sliding rod (22) being fixedly mounted between the clamping assemblies (21), and the clamping assembly (21) being mainly used for clamping a drug packaging film; A first sliding block (23), the first sliding block (23) being slidably mounted on the first sliding rod (22), a connecting block (231) being mounted on one side of the first sliding block (23), a contact block (232) being fixedly mounted on the bottom of the connecting block (231), and a sliding groove (233) being provided on the bottom of the contact block (232); A friction block (234), the friction block (234) being slidably mounted in the slide groove (233); A cylinder (61), the cylinder (61) being fixedly mounted on the support plate (6); A connecting assembly, the connecting assembly being mounted on the output end of the cylinder (61), the other end of the connecting assembly being connected to the first sliding block (23); An electric cooling block (24), the electric cooling block (24) being fixedly mounted on the detection plate (2); An electric heating block (25), the electric heating block (25) being fixedly mounted on the detection plate (2); Wherein: the electric cooling block (24) and the electric heating block (25) are both turned on or off by electric control; when the electric cooling block (24) and the electric heating block (25) are turned on, the temperature of the drug packaging film in different areas is reduced or increased; when the friction block (234) slides over the area, the friction coefficient of the drug packaging film at different temperatures is detected.

2. The friction coefficient detection device for pharmaceutical packaging according to claim 1, characterized in that: The connecting assembly comprises a driving block (64) fixedly mounted on the output end of the cylinder (61); a slide rail (62) fixedly mounted on the support plate (6); a second sliding block (63) slidably mounted on the slide rail (62); a bottom of the driving block (64) and the second sliding block (63) are fixedly mounted; the connecting assembly further comprises fixing pins (65) fixedly mounted on both sides of the back side of the detection seat (1); a second sliding rod (66) is fixedly mounted between the fixing pins (65); a sliding sleeve (67) is slidably mounted on the surface of the second sliding rod (66); A moving block (7) is fixedly mounted on the outer ring of the sleeve (67); a protrusion (72) is integrally provided on one side of the bottom of the moving block (7); one side of the protrusion (72) contacts the driving block (64); a vertical rod (71) is fixedly mounted on the top of the moving block (7); a universal shaft (5) is fixedly mounted on one side of the upper end of the vertical rod (71); a telescopic rod (4) is fixedly mounted on the other end of the universal shaft (5); a rotating rod (236) is fixedly mounted on one side of the first sliding block (23); and the other end of the telescopic rod (4) is connected to the rotating rod (236).

3. The friction coefficient detection device for pharmaceutical packaging according to claim 2, characterized in that: The telescopic rod (4) comprises a sleeve (41) fixedly mounted on one end of the universal shaft (5); a limit block (43) is slidably mounted in the sleeve (41); a connecting rod (42) is fixedly mounted on a side of the limit block (43) away from the universal shaft (5); the connecting rod (42) is rotatably connected to the rotating rod (236); the inner diameter of the opening of the sleeve (41) is smaller than the outer diameter of the limit block (43) and forms a limit step (44) with the inner cavity of the sleeve (41).

4. The friction coefficient detection device for pharmaceutical packaging according to claim 3, characterized in that: A bracket (3) is fixedly mounted on one side of the detection seat (1), a motor (31) is fixedly mounted on the bracket (3), a rotating shaft is fixedly mounted on the output end of the motor (31), the rotating shaft passes through the detection plate (2) and is movably connected to the other end of the detection seat (1) via a bearing, and the detection plate (2) is fixedly connected to the rotating shaft.

5. The friction coefficient detection device for pharmaceutical packaging according to claim 4, characterized in that: Side sliding blocks (235) are fixedly mounted on both sides of the friction block (234), and auxiliary sliding blocks adapted to the side sliding blocks (235) are provided on both sides of the sliding groove (233), and the sliding groove (233) and the auxiliary sliding groove are both arranged to be inclined upwards in a direction close to the universal shaft (5).

6. The friction coefficient detection device for pharmaceutical packaging according to claim 5, characterized in that: The top of the driving block (64) is supported by a flexible material, first vertical surfaces (721) are provided on both sides of the protrusion (72), a second inclined surface (722) is provided at the bottom of the first vertical surface (721), and a third horizontal surface (723) is provided at the bottom of the second inclined surface (722).

7. The friction coefficient detection device for pharmaceutical packaging according to claim 6, characterized in that: A fixing component (9) is fixedly mounted on the back of the detection seat (1). The structure of the fixing component (9) is the same as that of the universal shaft (5). A limit pin (91) is fixedly mounted on one side of the fixing component (9). A limit slot (8) is provided on one side of the moving block (7). The limit slot (8) comprises a first slideway (81) provided on the moving block (7). One end of the limit pin (91) abuts against the first slideway (81) to form an abutting end. A second slideway (82) is provided at the end of the first slideway (81). The groove bottom height of the second slideway (82) is lower than the groove bottom height of the first slideway (81) to form a first step. A first stationary point (86) is provided at a position where the first slideway (81) and the second slideway (82) communicate with each other.

8. The friction coefficient detection device for pharmaceutical packaging according to claim 7, characterized in that: A third slideway (83) is provided at the end of the second slideway (82), the groove bottom height of the third slideway (83) is lower than the groove bottom height of the second slideway (82) and forms a second step, a second stationary point (87) is provided at a position where the second slideway (82) and the third slideway (83) communicate with each other, a fourth slideway (84) is provided at the end of the third slideway (83), the groove bottom height of the fourth slideway (84) is lower than the groove bottom height of the third slideway (83) and forms a third step, a third stationary point (88) is provided at a position where the third slideway (83) and the fourth slideway (84) communicate with each other, the end of the fourth slideway (84) communicates with the first slideway (81), and a transition slope (89) is provided at the end of the fourth slideway (84), the highest position of the transition slope (89) is higher than the groove bottom height of the first slideway (81) and forms a transition step.

9. The friction coefficient detection device for pharmaceutical packaging according to claim 8, characterized in that: A fifth slide (85) is provided at the second stationary point (87), the other end of the fifth slide (85) being in communication with the fourth slide (84), the bottom height of the fifth slide (85) being higher than the bottom height of the fourth slide (84) and forming a fourth step, and a lifting block (810) is provided at the initial end of the fifth slide (85), and the lifting block (810) is lifted or lowered by electric control.

10. The friction coefficient detection device for pharmaceutical packaging according to claim 9, characterized in that: A PLC control system is provided in the detection seat (1); a first switch is provided at the first stationary point (86), the first switch being connected to the motor (31) by signal; a second switch is provided at the other end of the slide slot (233), the second switch being connected to the lifting block (810) by signal; a third switch is provided at the third stationary point (88), the third switch being connected to the motor (31) by signal; and a signal light is installed on the detection seat (1), the signal light being connected to the lifting block (810) by signal.

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