A film bag pressure resistance testing machine

Abstract

The film bag pressure test machine provided in the embodiments of the present application comprises: a pressure test machine body for testing a film bag to be pressure resistant; a bottom plate inside a placing groove of the pressure test machine body, and the film bag to be pressure tested is placed on the top surface of the bottom plate; a top plate on the top of the bottom plate for pressing the film bag on the top of the bottom plate; a clamping component comprising: a side frame on the side of the bottom plate; a sliding plate inside the side frame, and the sliding plate moves up and down on the inner side of the side frame; an inner plate installed on the inner side of the sliding plate by a connecting portion; a frame plate between the inner plate and the side frame; and a first elastic member connecting the frame plate and the inner plate for driving the frame plate to move close to the inner plate. The elastic force of the first elastic member is limited, which facilitates the cooperation of the inner plate and the frame plate to clamp film bags of different thicknesses, and makes the film bag on the top surface of the bottom plate in a straightened state to avoid wrinkles on the surface of the film bag, thereby preventing the pressure test of the film bag from having a large error due to wrinkles.

Description

Technical Field

[0001] This application relates to the field of film pressure resistance testing technology, and more specifically, to a film bag pressure resistance testing machine. Background Technology

[0002] A pressure testing machine is a static pressure testing device used for rubber hoses, plastic pipes, and packaging materials. When conducting a pressure test on a film bag, the film bag is placed on a platform. A lowered pressure plate then works in conjunction with the platform to apply pressure to the film bag, completing the pressure test.

[0003] However, after the film bag is placed on the placement table, simply laying it flat can easily cause wrinkles to appear on the top surface of the placement table. When the pressure plate and the placement table press the film bag, the wrinkled parts are likely to stick together tightly, causing the film bag to be squeezed and damaged, thus increasing the error of the pressure resistance test. Summary of the Invention

[0004] This application provides a film bag pressure resistance testing machine. By limiting the elasticity of the first elastic element, the inner plate and the frame plate can easily clamp film bags of different thicknesses, and the film bag is kept in a taut state on the top surface of the bottom plate, avoiding wrinkles on the surface of the film bag and preventing large errors in the pressure resistance test of the film bag due to wrinkles, thereby solving one of the above-mentioned technical defects.

[0005] To achieve the above objectives, this application provides the following technical solution: A film bag pressure resistance testing machine includes: a pressure resistance tester body for testing film bags to be pressure-resistant; a base plate located inside a placement slot of the pressure resistance tester body, with the film bag to be pressure-resistant placed on the top surface of the base plate; a top plate located on top of the base plate for squeezing the film bag on the top of the base plate; and clamping components including: a side frame located on the side of the base plate; a sliding plate located inside the side frame, and the sliding plate moving up and down inside the side frame; an inner plate mounted inside the sliding plate by a connecting part; a frame plate located between the inner plate and the side frame; and a first elastic member connecting the frame plate and the inner plate for driving the frame plate closer to the inner plate.

[0006] In any of the above technical solutions, the outer side of the inner plate is provided with an outer groove, and both sides of the inner side of the frame plate are provided with protrusions. The elastic force of the first elastic element causes the protrusions to cooperate with the outer groove to clamp the film bag, and the outer side of the top surface of the inner plate is provided with a chamfered surface.

[0007] In any of the above technical solutions, a sloping plate is further fixed to the top of the protruding strip, the top surface of the sloping plate is flush with the top surface of the protruding strip, a baffle is fixed to the inner side of the side frame, the sloping plate and the baffle are correspondingly arranged, the baffle is inclined, and the bottom surface of the baffle is in contact with the top surface of the sloping plate.

[0008] In any of the above technical solutions, the inner side of the frame plate is further provided by two crossbars penetrating the inner plate, and the frame plate is set vertically, with the first elastic member located on the outer side of the crossbars.

[0009] In any of the above technical solutions, further, both sides of the base plate are provided with sliding grooves, a screw rod passes through the inside of the sliding groove, a slider is fixed inside the side frame, both ends of the screw rod are screwed with sliders, and a rotating head is fixed at the front end of the screw rod.

[0010] In any of the above technical solutions, the slider is further provided with an internal thread groove corresponding to the screw, and the internal thread grooves of two adjacent sliders are in opposite directions. The rotating screw causes the two sliders to move closer to or further away from each other.

[0011] In any of the above technical solutions, further, both inner sidewalls of the side frame are provided with inner grooves, the end of the slide plate is slidably engaged in the inner groove, and the top surface of the slide plate is penetrated through the center of the top surface of the side frame by a vertical rod.

[0012] In any of the above technical solutions, the connecting part further includes: a plug rod, a second elastic element, and a nut; the outer side of the inner plate is penetrated through the center of the skateboard by the plug rod, the outer side of the plug rod is screwed with a nut, and the second elastic element is connected between the inner side of the skateboard and the outer side of the inner plate to drive the inner plate away from the skateboard.

[0013] In any of the above technical solutions, the placement groove is further provided with a buffer part of the buffer base plate. The buffer part includes: a sleeve frame, a support rod, a third elastic element, and a protruding edge. Multiple sleeve frames are fixed on the bottom surface of the base plate, and multiple support rods are fixed on the inner bottom surface of the placement groove. The multiple support rods correspond one-to-one with the multiple sleeve frames. The support rods are vertically inserted into the sleeve frames. The bottom surface of the sleeve frames is connected to the inner bottom surface of the placement groove by the third elastic element. A protruding edge is fixed on the top of the outer circumference of the support rod, and a side groove corresponding to the protruding edge is opened on the side of the sleeve frame.

[0014] In any of the above technical solutions, a limiting rod is further provided inside the placement groove, the end of the top plate is slidably sleeved on the surface of the limiting rod, and a driving component for driving the top plate to move up and down is provided on the top of the inner side of the placement groove.

[0015] Compared with the prior art, the method provided in this application has the following technical advantages: The elastic force of the first elastic element allows the inner plate and the frame plate to cooperate in clamping film bags of different thicknesses, and keeps the film bags taut on the top surface of the bottom plate, avoiding wrinkles on the surface of the film bags and preventing large errors in the pressure resistance test of the film bags due to wrinkles.

[0016] It should be understood that both the foregoing general description and the following detailed description are for illustrative purposes and do not necessarily limit the scope of this disclosure. The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate the subject matter of this disclosure. Furthermore, the specification and drawings serve to explain the principles of this disclosure. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the specific embodiments of this disclosure or the prior art, the accompanying drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this disclosure. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort. The illustrative embodiments of this application and their descriptions are used to explain this application and do not constitute an improper limitation of this application.

[0018] Figure 1 This is a schematic diagram of the overall structure of the pressure testing machine according to an embodiment of the present disclosure; Figure 2 This is a schematic diagram of the overall base plate according to an embodiment of the present disclosure; Figure 3 This is a schematic diagram of the overall clamping component in an embodiment of this disclosure; Figure 4 This is a cross-sectional perspective view of the clamping component in an embodiment of this disclosure; Figure 5 This is a schematic diagram of the structure in which the top end of the support rod is inserted into the bottom of the sleeve in an embodiment of this disclosure; Icons: 1. Pressure machine body; 101. Placement slot; 2. Base plate; 201. Slide groove; 3. Top plate; 4. Side frame; 5. Slide plate; 6. Inner plate; 601. Outer groove; 602. Chamfered surface; 7. Frame plate; 701. Raised strip; 702. Inclined plate; 8. First elastic element; 9. Baffle; 10. Screw; 11. Slider; 12. Rotating head; 13. Inner groove; 14. Vertical rod; 15. Insert rod; 16. Second elastic element; 17. Nut; 18. Sleeve frame; 19. Support rod; 20. Third elastic element; 21. Raised edge; 22. Limiting rod. Detailed Implementation

[0019] This invention discloses a film bag pressure resistance testing machine to solve the problem that the pressure resistance test error of existing film bags increases due to the wrinkled shape during the pressurization process.

[0020] To make the technical solutions and advantages of the embodiments of this application clearer, the exemplary embodiments of this application will be described in further detail below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not an exhaustive list of all embodiments. It should be noted that, unless otherwise specified, the embodiments and features in the embodiments of this application can be combined with each other.

[0021] A film bag pressure resistance testing machine, in Figure 1 The system includes: a pressure tester body 1, a base plate 2, and a top plate 3. The pressure tester body 1 has a square shape. A placement groove 101 is provided at the bottom of the front side of the pressure tester body 1. The top plate 3 and the base plate 2 are respectively provided at the top and bottom of the placement groove 101. The top plate 3 is located on top of the base plate 2, and both the top plate 3 and the base plate 2 are square plates. The top surface of the top plate 3 is connected to the output end of the drive component. The bottom of the base plate 2 is installed on the bottom surface of the placement groove 101 using a buffer part. The top surface of the base plate 2 corresponds to the bottom surface of the top plate 3. At this time, the film bag to be pressure tested is placed on the top surface of the base plate 2.

[0022] A display screen is installed on the top front side of the pressure testing machine body 1 to show the pressure and time of the compression of the film bag between the top plate 3 and the bottom plate 2. During the process of the top plate 3 and the bottom plate 2 compressing the film bag, the pressure displayed on the screen gradually increases until the pressure on the film bag reaches the preset value. At this time, the top plate 3 stops moving downward. The top plate 3 and the bottom plate 2 work together to compress the film bag for a period of time. The operator can observe the pressure changes and the compression time in real time on the display screen.

[0023] The preset value is: select the appropriate pressure according to the material of the film bag.

[0024] To define the film bag on the top surface of the base plate 2, clamping components are used to clamp both ends of the film bag. Figures 1 to 4 In the process, the clamping components include: side frame 4, slide plate 5, inner plate 6, frame plate 7 and first elastic element 8, the first elastic element 8 is set as a rubber spring sheet; two side frames 4 are provided on both sides of the base plate 2, the side frames 4 slide on the side of the base plate 2, the slide plate 5 is provided inside the side frame 4 and slides up and down, and the inner plate 6 is connected to the inner side of the slide plate 5 by a connecting part, the frame plate 7 is provided between the inner plate 6 and the side frame 4, the inner side of the frame plate 7 is penetrated by two crossbars through the inner plate 6, and the frame plate 7 is set vertically, the first elastic element 8 is located on the outer side of the crossbars, the first elastic element 8 is connected between the inner side of the frame plate 7 and the outer side of the inner plate 6, and is used to drive the frame plate 7 to move closer to the inner plate 6.

[0025] Please see Figures 1 to 4 Place the film bag requiring pressure resistance test on the top surface of the base plate 2, and pull the slide plate 5 upward. The upward-moving slide plate 5 uses the connecting part to make the inner plate 6 and the frame plate 7 move upward synchronously, driving the frame plate 7 away from the inner plate 6. At this time, the frame plate 7 pulls the crossbar to move inside the inner plate 6. Since the slide plate 5 uses the connecting part to support the inner plate 6, the outward-moving frame plate 7 and the inner plate 6 cooperate to pull the first elastic element 8. At this time, the distance between the frame plate 7 and the inner plate 6 gradually increases.

[0026] The end of the film bag to be pressure tested is placed between the frame plate 7 and the inner plate 6. The force applied to the frame plate 7 is removed, and the elastic force of the first elastic element 8 pulls the frame plate 7 closer to the inner plate 6. The frame plate 7 and the inner plate 6 cooperate to clamp the end of the film bag. The inner plate 6, the frame plate 7, and the first elastic element 8 cooperate to form a clamping element. At this time, the frame plate 7 on the other side of the bottom plate 2 cooperates with the inner plate 6 to clamp the other end of the film bag to be pressure tested, completing the clamping and limiting of the film bag. The sliding plate 5 is pushed down inside the side frame 4. The downward sliding plate 5 uses the inner plate 6 and the frame plate 7 to drive the end of the film bag down. The two opposing clamping elements pull the film bag, causing the film bag to be in a taut state on the top surface of the bottom plate 2.

[0027] Start the drive unit of the pressure tester body 1. The drive unit causes the top plate 3 to move down inside the placement slot 101 until the bottom surface of the top plate 3 contacts the film bag. The top plate 3 and the bottom plate 2 work together to pressurize the film bag. The pressure is displayed on the screen. Different levels of pressure can be applied to the film bag. After pressurizing for a period of time, the drive unit causes the top plate 3 to move up. At this time, observe the shape of the film bag to complete the pressure test of the film bag.

[0028] In one specific embodiment, the elastic force of the first elastic element 8 allows the inner plate 6 and the frame plate 7 to cooperate in clamping film bags of different thicknesses, and keeps the film bags taut on the top surface of the bottom plate 2, thus avoiding large errors in the pressure resistance test of the film bags due to wrinkles.

[0029] Please see Figure 1 In order to move the top plate 3, limiting rods 22 are provided on both sides of the placement groove 101. The end of the top plate 3 is slidably sleeved on the surface of the limiting rods 22. A driving component for moving the top plate 3 up and down is provided on the top of the inner side of the placement groove 101. The top plate 3 is installed at the output end of the driving component. The driving component is a driving cylinder in the prior art.

[0030] Specifically, after the clamping component clamps the film bag, the film bag is taut on the top surface of the base plate 2. The drive unit is activated, and the output end of the drive unit causes the top plate 3 to move down. The end of the top plate 3 moves down on the surface of the limiting rod 22. The multiple limiting rods 22 and the output end of the drive unit keep the top plate 3 in a horizontal state until the bottom surface of the top plate 3 contacts the film bag. The moving top plate 3 cooperates with the base plate 2 to press the film bag. The pressure and time of the pressurization of the film bag can be observed through the display screen.

[0031] After pressurizing for a period of time, the driving component moves the top plate 3 away from the bottom plate 2. The shape change of the film bag after pressurization is observed through the placement groove 101, thus completing the pressurization test of the film bag.

[0032] In one specific implementation, the top plate 3 is moved downward by the power of the drive component, and the top plate 3 is limited by the limiting rod 22 and the output end of the drive component, so that the horizontal top plate 3 and the bottom plate 2 can press the film bag to be tested.

[0033] Please see Figure 3 and Figure 4 In order to further improve the effect of the inner plate 6 and the frame plate 7 in clamping the film bag, the outer side of the inner plate 6 is provided with an outer groove 601, and both sides of the inner side of the frame plate 7 are provided with protrusions 701. The elastic force of the first elastic member 8 makes the protrusions 701 cooperate with the outer groove 601 to clamp the film bag, and the outer side of the top surface of the inner plate 6 is provided with a chamfered surface 602.

[0034] Specifically, when the drive plate 7 moves away from the inner plate 6, the drive plate 7 and the inner plate 6 work together to pull the first elastic element 8. Since the drive plate 7 uses two crossbars to pass through the inner plate 6, the drive plate 7 remains vertical as it moves away from the inner plate 6. The drive plate 7 moving away from the inner plate 6 drives the protrusion 701 to move synchronously. At this time, the protrusion 701 moves out from inside the outer groove 601 until the end of the film bag can be inserted between the drive plate 7 and the inner plate 6.

[0035] When the power applied to the frame plate 7 is removed, the elastic force of the first elastic member 8 causes the frame plate 7 to move closer to the inner plate 6. The inward movement of the frame plate 7 causes the protrusion 701 to gradually enter the outer groove 601. The moving protrusion 701 and the outer groove 601 clamp the end of the film bag, ensuring the clamping stability of the end of the film bag on the clamping member.

[0036] When the two opposing clamps hold the two ends of the film bag, the clamps are moved down. At this time, the bottom surface of the film bag is attached to the chamfered surface 602. The film bag is laid flat on the top surface of the inner plate 6 using the curved chamfered surface 602. The chamfered surface 602 ensures the bending transition effect of the film bag and avoids the bottom surface of the film bag from being pulled and damaged by the inner plate 6.

[0037] In one specific embodiment, the elastic force of the first elastic member 8 causes the protrusion 701 and the outer groove 601 to clamp the film bag. During the process of laying the film bag flat, the end of the film bag is prevented from sliding inside the clamping member. During the process of the clamping member driving the end of the film bag to move down, the film bag is in a taut state on the top surface of the bottom plate 2, thus avoiding wrinkles on the surface of the film bag.

[0038] Please see Figure 3 and Figure 4 In order to drive the frame plate 7 away from the inner plate 6, the top of the protrusion 701 is fixed with an inclined plate 702. The top surface of the inclined plate 702 is flush with the top surface of the protrusion 701. Two baffles 9 are fixed on the inner side of the side frame 4. The two baffles 9 correspond one-to-one with the two inclined plates 702. The inclined plates 702 and the baffles 9 are set in a corresponding manner. The baffles 9 are set at an angle and the bottom surface of the baffles 9 is in contact with the top surface of the inclined plates 702.

[0039] Specifically, when the slide plate 5 is pulled, it moves upward inside the side frame 4. The upward movement of the slide plate 5 causes the clamping member to move upward using the connecting part. The upward movement of the clamping member causes the inclined plate 702 at the top of the protrusion 701 to gradually approach the baffle 9 until the top surface of the inclined plate 702 is in contact with the bottom surface of the baffle 9. Then, the slide plate 5 continues to move upward. At this time, the inclined plate 702 slides on the bottom surface of the baffle 9. Since the baffle 9 is fixedly installed on the inner side of the side frame 4, the sliding inclined plate 702 causes the frame plate 7 to move away from the inner plate 6. At this time, the frame plate 7 and the inner plate 6 cooperate to pull the first elastic member 8, which facilitates driving the frame plate 7 away from the inner plate 6.

[0040] When the end of the film bag is inserted between the frame plate 7 and the inner plate 6, the slide plate 5 is pushed down. The downward-moving inclined plate 702 moves away from the baffle 9. The baffle 9 can no longer restrict the inclined plate 702. The elastic force of the first elastic member 8 makes the frame plate 7 approach the inner plate 6, thus completing the clamping of the end of the film bag. This makes it convenient for the frame plate 7 and the inner plate 6 to clamp film bags of different thicknesses.

[0041] In one specific implementation, the upward movement of the slide plate 5 causes the inclined plate 702 to move up on the bottom surface of the baffle 9. The baffle 9 restricts the frame plate 7 away from the inner plate 6, making it convenient to adjust the relative distance between the frame plate 7 and the inner plate 6 according to the thickness of the film bag.

[0042] Please see Figure 2 and Figure 3 In order to move the side frame 4, the base plate 2 has a sliding groove 201 on both sides. A screw 10 passes through the sliding groove 201. A slider 11 is fixed inside the side frame 4. The two ends of the screw 10 are screwed with sliders 11. The sliders 11 are inside the sliding groove 201. The sliders 11 have an internal thread groove corresponding to the screw 10. A rotating head 12 is fixed at the front end of the screw 10.

[0043] Specifically, screws 10 are screwed into both sides of the base plate 2. A circular plate is fixed to the rear end of the screw 10, and a rotating head 12 is fixed to the front end of the screw 10. The screw 10 rotates inside the slide groove 201. At this time, sliders 11 are provided at both ends inside the slide groove 201. The sliders 11 are screwed onto the surface of the screw 10 by means of internal thread grooves, and the internal thread grooves of two adjacent sliders 11 are in opposite directions.

[0044] Rotating the rotating head 12 causes the screw 10 to rotate inside the slide groove 201. The rotating screw 10 causes the two sliders 11 to move closer or further apart. At this time, the sliders 11 move inside the slide groove 201. The relative distance between the two adjacent side frames 4 is adjusted by rotating the screw 10.

[0045] Place the pressure-resistant film bag on the top surface of the base plate 2. Two clamps on one side of the base plate 2 hold one end of the film bag, and two clamps on the other side of the base plate 2 hold the other end of the film bag, making it convenient to clamp film bags of different widths on the top surface of the base plate 2.

[0046] In one specific embodiment, the relative distance between the two sliders 11 is adjusted by rotating the rotating head 12, which makes it convenient for the two adjacent clamping parts to adapt to the width of different film bags, and facilitates the pressure tester body 1 to test film bags of different widths.

[0047] Please see Figure 3 and Figure 4 In order to drive the slide plate 5 to move, the two inner side walls of the side frame 4 are provided with inner grooves 13. The end of the slide plate 5 is slidably engaged in the inner groove 13. The top surface of the slide plate 5 is penetrated through the center of the top surface of the side frame 4 by a vertical rod 14.

[0048] Specifically, the inner groove 13 is set as a semi-cylindrical groove, and both ends of the slide plate 5 are engaged with the inner groove 13 by semi-circular protrusions. The two inner grooves 13 limit the slide plate 5. Furthermore, the top surface of the slide plate 5 is vertically penetrated by the vertical rod 14 through the top surface of the side frame 4. At this time, the slide plate 5 is always in a horizontal state inside the side frame 4, and the top of the vertical rod 14 is fixed with a round head.

[0049] Pull the round head, and the round head uses the vertical rod 14 to move the slide plate 5 upward inside the side frame 4. At this time, the side frame 4 uses the inner groove 13 to limit the slide plate 5. Press the round head, and the round head uses the vertical rod 14 to move the slide plate 5 downward inside the side frame 4. The downward-moving slide plate 5 uses the clamping member to pull the end of the film bag downward, thus completing the driving of the slide plate 5.

[0050] In one specific embodiment, the movement of the round head causes the slide plate 5 to move up and down inside the side frame 4 under the drive of the vertical rod 14, which facilitates the synchronous movement of the driving clamping components.

[0051] Please see Figure 3 and Figure 4 To facilitate the movement of the clamping component by the connecting part of the skateboard 5, the connecting part includes: a rod 15, a second elastic element 16, and a nut 17. The second elastic element 16 is a rubber sheet, and the elastic force of the second elastic element 16 is greater than that of the first elastic element 8. When the ramp 702 slides on the baffle 9, causing the frame plate 7 to pull the first elastic element 8, the elastic force of the second elastic element 16 supports the inner plate 6. The outer side of the inner plate 6 is penetrated through the center of the skateboard 5 by the rod 15. The outer side of the rod 15 is screwed with a nut 17. The second elastic element 16 is connected between the inner side of the skateboard 5 and the outer side of the inner plate 6 to drive the inner plate 6 away from the skateboard 5.

[0052] Specifically, since the skateboard 5 is connected to the inner plate 6 by the second elastic element 16, the elastic force of the second elastic element 16 causes the inner plate 6 to move away from the skateboard 5. The moving inner plate 6 causes the insert rod 15 to move inside the skateboard 5 until the inner side of the nut 17 is in contact with the outer side of the skateboard 5. Loosening the nut 17, the elastic force of the second elastic element 16 keeps the inner side of the nut 17 in contact with the outer side of the skateboard 5. At this time, the inner plate 6 gradually moves away from the skateboard 5. The moving inner plate 6 uses the first elastic element 8 to make the frame plate 7 move away from the side frame 4. At this time, the upward-moving ramp 702 slides a greater distance on the bottom surface of the baffle 9, thereby increasing the clamping distance between the inner plate 6 and the frame plate 7.

[0053] Tighten nut 17. The rotating nut 17 uses the insert rod 15 to bring the inner plate 6 closer to the slide plate 5. The moving inner plate 6 uses the first elastic element 8 to bring the frame plate 7 closer to the side frame 4. At this time, the distance that the upward-moving inclined plate 702 slides on the bottom surface of the baffle 9 is reduced, thereby reducing the clamping distance between the inner plate 6 and the frame plate 7.

[0054] The clamping distance is the maximum distance between the frame plate 7 and the inner plate 6.

[0055] In one specific embodiment, the distance between the frame plate 7 and the side frame 4 can be easily adjusted by the elastic force of the rotating nut 17 and the second elastic member 16, and the clamping distance between the inner plate 6 and the frame plate 7 can be easily changed according to the thickness of the film bag.

[0056] Please see Figure 1 , Figure 2 and Figure 5 To reduce the crush damage received by the base plate 2, a buffer part of the buffer base plate 2 is provided inside the placement groove 101. The buffer part includes: a sleeve 18, a support rod 19, a third elastic element 20, and a protruding edge 21. The third elastic element 20 is a spring and is sleeved on the surface of the support rod 19. Multiple sleeves 18 are fixed on the bottom surface of the base plate 2, and multiple support rods 19 are fixed on the inner bottom surface of the placement groove 101. The multiple support rods 19 correspond one-to-one with the multiple sleeves 18. The support rods 19 are vertically inserted into the sleeves 18. The bottom surface of the sleeves 18 is connected to the inner bottom surface of the placement groove 101 by the third elastic element 20. A protruding edge 21 is fixed on the top of the outer circumference of the support rod 19, and a side groove corresponding to the protruding edge 21 is opened on the side of the sleeve 18.

[0057] Specifically, support rods 19 are fixed at the four corners inside the placement slot 101. The support rods 19 are set vertically and have a protruding edge 21 fixed at the top. At this time, the sleeve frame 18 is sleeved on the top of the support rod 19.

[0058] After the film bag is clamped using two opposing clamping devices, it lies flat on the top surface of the base plate 2. The pressure-resistant machine body 1 is then started. The output of the drive unit causes the top plate 3 to move downwards. When the moving top plate 3 contacts the film bag, it uses the base plate 2 to press against the third elastic element 20 on the surface of the support rod 19, while the sleeve 18 slides on the surface of the protruding edge 21 using its side groove. The pressure exerted on the film bag by the top plate 3 and the base plate 2 is displayed on the monitor.

[0059] After the pressure test on the film bag is completed, the output end of the drive unit causes the top plate 3 to move upward. At this time, the elastic force of the third elastic element 20 causes the sleeve frame 18 to drive the bottom plate 2 to move upward. The support rod 19 uses the convex edge 21 to limit the sleeve frame 18 and the bottom plate 2, preventing the bottom plate 2 from detaching from the placement groove 101.

[0060] In one specific embodiment, the elastic force of the third elastic member 20 absorbs the pressure of the top plate 3 and the bottom plate 2 on the film bag, thereby preventing the top plate 3 from moving too far downward and causing the bottom plate 2 to be squeezed and damaged on the inner bottom surface of the placement groove 101.

[0061] Working principle of this invention: See Figures 1 to 5 As shown, rotating the rotating head 12 causes the screw 10 to rotate inside the slide groove 201. The rotating screw 10 causes the two sliders 11 to move closer or further apart. At this time, the sliders 11 move inside the slide groove 201. The relative distance between the two adjacent side frames 4 is adjusted by rotating the screw 10.

[0062] The pressure-resistant film bag is placed on the top surface of the base plate 2. The round head is pulled, and the round head uses the vertical rod 14 to move the slide plate 5 upward inside the side frame 4. At this time, the side frame 4 uses the inner groove 13 to limit the slide plate 5. The upward-moving slide plate 5 uses the connecting part to move the clamping member upward. The upward-moving clamping member causes the inclined plate 702 at the top of the protrusion 701 to gradually approach the baffle 9 until the top surface of the inclined plate 702 is in contact with the bottom surface of the baffle 9. The slide plate 5 continues to move upward. At this time, the inclined plate 702 slides on the bottom surface of the baffle 9. Since the baffle 9 is fixedly installed on the inner side of the side frame 4, the sliding inclined plate 702 makes the frame plate 7 move away from the inner plate 6. At this time, the frame plate 7 and the inner plate 6 cooperate to pull the first elastic member 8, which facilitates driving the frame plate 7 away from the inner plate 6.

[0063] When the end of the film bag is inserted between the frame plate 7 and the inner plate 6, the round head is pressed. The round head uses the vertical rod 14 to make the slide plate 5 move down inside the side frame 4. The downward-moving inclined plate 702 moves away from the baffle 9. The baffle 9 can no longer limit the inclined plate 702. The elastic force of the first elastic member 8 makes the frame plate 7 move closer to the inner plate 6, thus completing the clamping of the end of the film bag. The downward-moving slide plate 5 uses the clamping member to pull the end of the film bag down.

[0064] Two clamping members on one side of the base plate 2 hold one end of the film bag, while two clamping members on the other side of the base plate 2 hold the other end of the film bag, making it convenient to clamp film bags of different widths on the top surface of the base plate 2. When the two opposing clamping members hold both ends of the film bag, the downward movement of the sliding plate 5 causes the clamping members to move the ends of the film bag downward. At this time, the bottom surface of the film bag is in contact with the chamfered surface 602. The chamfered surface 602 ensures the flatness of the film bag and avoids pulling damage between the film bag and the inner plate 6. At this time, the film bag is in a taut state on the top surface of the base plate 2.

[0065] Start the drive unit of the pressure-resistant machine body 1. At this time, the output end of the drive unit causes the top plate 3 to move down. The end of the top plate 3 moves down on the surface of the limiting rod 22. Multiple limiting rods 22 and the output end of the drive unit keep the top plate 3 in a horizontal state until the bottom surface of the top plate 3 contacts the film bag. The top plate 3 uses the bottom plate 2 to squeeze the third elastic element 20 on the surface of the support rod 19, and the sleeve 18 slides on the surface of the convex edge 21 using the side groove. Observe the pressure and time of the film bag being pressurized through the display screen.

[0066] After pressurizing for a period of time, the driving component moves the top plate 3 away from the bottom plate 2. The shape change of the film bag after pressurization is observed through the placement groove 101, thus completing the pressurization test of the film bag.

[0067] Pull the round head again to move the end of the film bag upward using the clamping component. When the inclined plate 702 slides on the bottom surface of the baffle 9, the frame plate 7 separates from the inner plate 6. At this time, the film bag that has completed the test is removed from the bottom plate 2, and a new film bag is placed on the top of the bottom plate 2. The clamping component is used to clamp the new film bag again, which facilitates the continuous pressure resistance test of the film bag.

[0068] All other embodiments obtained by those skilled in the art based on the embodiments in this disclosure without inventive effort are within the scope of protection of this disclosure.

[0069] In the description of this disclosure, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this disclosure and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this disclosure. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0070] In the description of this disclosure, it should be noted that, unless otherwise expressly specified and limited, the terms "installation," "connection," and "linkage" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection between two components. Those skilled in the art can understand the specific meaning of the above terms in this disclosure based on the specific circumstances.

[0071] Although preferred embodiments of this application have been described, those skilled in the art, upon learning the basic inventive concept, can make other changes and modifications to these embodiments. Therefore, the appended claims are intended to be interpreted as including the preferred embodiments as well as all changes and modifications falling within the scope of this application.

[0072] Obviously, those skilled in the art can make various modifications and variations to this application without departing from the spirit and scope of this application. Therefore, if such modifications and variations fall within the scope of the claims of this application and their equivalents, this application also intends to include such modifications and variations.

Claims

1. A film bag pressure resistance testing machine, characterized in that, include: The pressure tester body (1) is used to test the pressure-resistant film bag; The base plate (2) is located inside the placement slot (101) of the pressure tester body (1), and the film bag to be tested is placed on the top surface of the base plate (2); Top plate (3), located on top of bottom plate (2), is used to squeeze the film bag on top of bottom plate (2); The clamping components include: Side frame (4) is located on the side of the base plate (2); The slide (5) is located inside the side frame (4), and the slide (5) moves up and down inside the side frame (4); The inner plate (6) is installed inside the slide plate (5) using a connecting part; The frame plate (7) is located between the inner plate (6) and the side frame (4); The first elastic element (8) connects the frame plate (7) and the inner plate (6) and is used to drive the frame plate (7) to move closer to the inner plate (6).

2. The film bag pressure resistance testing machine according to claim 1, characterized in that, The outer side of the inner plate (6) is provided with an outer groove (601), and both sides of the inner side of the frame plate (7) are provided with protrusions (701). The elastic force of the first elastic member (8) makes the protrusions (701) cooperate with the outer groove (601) to clamp the film bag, and the outer side of the top surface of the inner plate (6) is provided with a chamfered surface (602).

3. The film bag pressure resistance testing machine according to claim 2, characterized in that, A sloping plate (702) is fixed to the top of the protruding strip (701). The top surface of the sloping plate (702) is flush with the top surface of the protruding strip (701). A baffle (9) is fixed to the inner side of the side frame (4). The sloping plate (702) and the baffle (9) are arranged correspondingly. The baffle (9) is inclined. The bottom surface of the baffle (9) is in contact with the top surface of the sloping plate (702).

4. The film bag pressure resistance testing machine according to claim 3, characterized in that, The inner side of the frame plate (7) is penetrated by two crossbars through the inner plate (6), and the frame plate (7) is set vertically, with the first elastic member (8) located on the outer side of the crossbars.

5. The film bag pressure resistance testing machine according to claim 1, characterized in that, The base plate (2) has grooves (201) on both sides, and a screw (10) runs through the groove (201). A slider (11) is fixed inside the side frame (4). The slider (11) is screwed onto both ends of the screw (10). A rotating head (12) is fixed to the front end of the screw (10).

6. The film bag pressure resistance testing machine according to claim 5, characterized in that, The slider (11) has an internal thread groove corresponding to the screw (10). The internal thread grooves of two adjacent sliders (11) are in opposite directions. The rotating screw (10) causes the two sliders (11) to move closer to or further away from each other.

7. The film bag pressure resistance testing machine according to claim 1, characterized in that, The two inner walls of the side frame (4) are provided with inner grooves (13), and the end of the slide plate (5) is slidably engaged in the inner groove (13). The top surface of the slide plate (5) is penetrated through the center of the top surface of the side frame (4) by a vertical rod (14).

8. The film bag pressure resistance testing machine according to claim 7, characterized in that, The connecting part includes: a plug (15), a second elastic element (16), and a nut (17); The outer side of the inner plate (6) is penetrated through the center of the slide plate (5) by the insert rod (15). The nut (17) is spirally sleeved on the outer side of the insert rod (15). The second elastic member (16) is connected between the inner side of the slide plate (5) and the outer side of the inner plate (6) to drive the inner plate (6) away from the slide plate (5).

9. The film bag pressure resistance testing machine according to claim 1, characterized in that, The placement groove (101) is provided with a buffer part to buffer the bottom plate (2). The buffer part includes: a sleeve (18), a support rod (19), a third elastic element (20), and a protruding edge (21). The bottom surface of the base plate (2) is fixed with a plurality of sleeve frames (18), and the bottom surface of the inner side of the placement groove (101) is fixed with a plurality of support rods (19). The plurality of support rods (19) correspond one-to-one with the plurality of sleeve frames (18). The support rods (19) are vertically inserted into the inside of the sleeve frames (18). The bottom surface of the sleeve frames (18) is connected to the bottom surface of the inner side of the placement groove (101) by the third elastic element (20). The top of the outer circumference of the support rods (19) is fixed with the protruding edge (21), and the side of the sleeve frames (18) is provided with a side groove corresponding to the protruding edge (21).

10. The film bag pressure resistance testing machine according to claim 1, characterized in that, The placement groove (101) is provided with a limiting rod (22), the end of the top plate (3) is slidably sleeved on the surface of the limiting rod (22), and the top of the inner side of the placement groove (101) is provided with a driving member to drive the top plate (3) to move up and down.

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