Negative pressure self-adaptive device for bottle cap tightness test

Abstract

The application discloses a negative pressure self-adaptive device for bottle cap sealing test and relates to the field of bottle cap sealing test, which comprises a workbench, a clamping mechanism arranged in the workbench and a plug-in mechanism arranged on the top of the clamping mechanism. The clamping mechanism can clamp bottle caps with different sizes and diameters, the operation of a servo motor is controlled, the output end of the servo motor drives a bidirectional screw rod to rotate, the bidirectional screw rod drives two symmetrical cross slides to move towards each other, a bottle cap is placed on the side opposite to the two semicircular clamping plates, the two cross slides drive the corresponding semicircular plates to move towards each other when the two cross slides move, the bottle cap is clamped under the action of the two semicircular clamping plates, the two semicircular clamping plates are prevented from damaging the bottle cap under the cooperation of a first spring and a limiting ring, and the two cross slides are used to clamp bottle caps with different sizes and diameters, thereby adapting to more bottle cap sealing tests.

Description

Technical Field

[0001] This utility model relates to the field of bottle cap sealing test technology, and in particular to a negative pressure adaptive device for bottle cap sealing test. Background Technology

[0002] Bottle cap sealing is crucial to product quality and safety. Whether it is food and beverage, medicine or cosmetic, reliable sealing performance is required. Poorly sealed bottle caps can lead to microbial contamination and spoilage of food and beverages, shortening the product's shelf life. In the pharmaceutical industry, poor sealing may cause medicines to become damp and oxidized, affecting their efficacy and even endangering patients' health.

[0003] Place the bottle cap with the opening facing upwards in the negative pressure testing device, control the negative pressure air pump in the device to run, and perform a sealing test on the bottle cap.

[0004] Existing negative pressure devices for bottle cap sealing tests require manual adjustment of the clamping structure to fit bottle caps of different sizes, which is a cumbersome process. Therefore, they lack the function of adaptive clamping based on bottle cap size for sealing tests. Hence, a negative pressure adaptive device for bottle cap sealing tests is proposed. Utility Model Content

[0005] (a) Technical problems to be solved

[0006] To address the problems existing in the prior art, this utility model provides a negative pressure adaptive device for bottle cap sealing performance testing.

[0007] (II) Technical Solution

[0008] To achieve the above objectives, this utility model is implemented through the following technical solution: a negative pressure adaptive device for bottle cap sealing test, including a workbench, a clamping mechanism is provided inside the workbench, and a plugging mechanism is provided on the top of the clamping mechanism.

[0009] As a preferred embodiment of the negative pressure adaptive device for bottle cap sealing test of this utility model, the clamping mechanism includes a bidirectional lead screw disposed inside the worktable. A cross slider is symmetrically mounted on the outside of the bidirectional lead screw through a threaded sleeve. A semicircular plate is fixedly connected to the top of the cross slider. A fixing block is symmetrically disposed on the top of the semicircular plate. A limit pin is movably installed inside the fixing block. A limit ring is fixedly connected to the outer surface of the limit pin. A first spring is disposed on the side of the limit ring opposite to the fixing block. A semicircular clamping plate is fixedly connected to one side of the limit pin.

[0010] As a preferred embodiment of the negative pressure adaptive device for bottle cap sealing test of the present invention, the insertion mechanism includes a cylinder fixedly installed on the top of the inner surface of the workbench, a female insertion block fixedly provided at the output end of the cylinder, a male insertion block movably inserted inside the female insertion block, a sealing plate fixedly provided at the bottom of the male insertion block, and a telescopic tube provided at the top of the sealing plate.

[0011] As a preferred embodiment of the negative pressure adaptive device for bottle cap sealing test of the present invention, a cross groove adapted to the cross slider is provided on one side of the workbench, both cross sliders are slidably connected in the groove, and a limit plate is fixedly installed at the center of the groove.

[0012] As a preferred embodiment of the negative pressure adaptive device for bottle cap sealing test of the present invention, the bidirectional lead screw is rotatably connected inside the worktable through a bearing, and a servo motor is fixedly installed at one end of the bidirectional lead screw extending to the outside of the worktable.

[0013] As a preferred embodiment of the negative pressure adaptive device for bottle cap sealing test of the present invention, the first spring is located outside the limiting pin, both limiting pins are fixedly installed on one side of the semi-circular clamping plate, and the semi-circular clamping plate is slidably connected to the top of the semi-circular plate.

[0014] As a preferred embodiment of the negative pressure adaptive device for bottle cap sealing test of the present invention, the female plug block is provided with a locking pin, a pull rod is fixedly installed on one side of the locking pin, and a second spring is provided on one side of the locking pin.

[0015] As a preferred embodiment of the negative pressure adaptive device for bottle cap sealing test of the present invention, a groove adapted to the locking pin is provided on one side of the inner surface of the female plug block, and the locking pin is slidably connected inside the groove. A slot adapted to the locking pin is provided on one side of the male plug block, and the locking pin is movably engaged in the groove.

[0016] (III) Beneficial Effects

[0017] This invention provides a negative pressure adaptive device for bottle cap sealing performance testing. It has the following beneficial effects:

[0018] 1. The clamping mechanism can clamp bottle caps of different sizes. The servo motor's output drives a bidirectional lead screw to rotate, which in turn moves two symmetrical cross sliders towards each other, positioning the bottle cap with its opening facing upwards on one side of the two semi-circular clamping plates. As the two cross sliders move, they drive their corresponding semi-circular plates towards each other, clamping the bottle cap. The first spring and the limiting ring prevent the two semi-circular clamping plates from damaging the bottle cap. The movement of the two cross sliders allows for clamping bottle caps of different sizes, accommodating a wider range of bottle cap sealing tests.

[0019] 2. Through the action of the plug-in mechanism, the sealing disc with weakened airtightness after long-term use can be quickly replaced. Manually pull the lever, and the lever will pull the locking pin into the inner cavity of the female plug-in block, removing the locking pin from the slot of the male plug-in block. After the male plug-in block is released from the restriction of the locking pin, the sealing disc can be removed from the bottom of the female plug-in block, which has the function of quickly replacing the sealing disc. Attached Figure Description

[0020] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0021] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0022] Figure 2 This is a schematic diagram of the installation position of the clamping mechanism of this utility model.

[0023] Figure 3 This is a schematic diagram of the overall structure of the clamping mechanism of this utility model.

[0024] Figure 4 This is a schematic diagram of the overall structure of the plug-in mechanism of this utility model.

[0025] Figure 5 This is a partial cross-sectional view of the insertion mechanism of this utility model.

[0026] Figure 6 This is a utility model Figure 5 Enlarged diagram of point A in the middle.

[0027] In the diagram, 1. Workbench; 2. Clamping mechanism; 201. Servo motor; 202. Cross slider; 203. Semicircular plate; 204. Limiting plate; 205. Semicircular clamping plate; 206. Limiting pin; 207. Limiting ring; 208. First spring; 209. Fixing block; 210. Bidirectional lead screw; 3. Plug-in mechanism; 301. Cylinder; 302. Telescopic tube; 303. Sealing plate; 304. Female plug-in block; 305. Male plug-in block; 306. Locking pin; 307. Second spring; 308. Pull rod. Detailed Implementation

[0028] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention.

[0029] Example 1

[0030] Reference Figure 1 , Figure 2 and Figure 3 This is the first embodiment of the present invention. This embodiment provides a negative pressure adaptive device for bottle cap sealing test, including a workbench 1, a clamping mechanism 2 is provided inside the workbench 1, and a plugging mechanism 3 is provided on the top of the clamping mechanism 2.

[0031] The clamping mechanism 2 includes a bidirectional lead screw 210 disposed inside the worktable 1. A cross slider 202 is symmetrically installed on the outside of the bidirectional lead screw 210 through a threaded sleeve. A semi-circular plate 203 is fixedly connected to the top of the cross slider 202. A fixing block 209 is symmetrically disposed on the top of the semi-circular plate 203. A limit pin 206 is movably installed inside the fixing block 209. A limit ring 207 is fixedly connected to the outer surface of the limit pin 206. A first spring 208 is disposed on the side of the limit ring 207 opposite to the fixing block 209. A semi-circular clamping plate 205 is fixedly connected to one side of the limit pin 206.

[0032] Specifically, the cup lid is placed on top of the semicircular plate 203. When the two cross sliders 202 are simultaneously driven to move in opposite directions by the bidirectional lead screw 210, the bottle lid is clamped by the two semicircular clamping plates 205. At this time, the semicircular clamping plates 205 push the two corresponding limiting pins 206 outward in the fixing block 209 to clamp the bottle lid. With the cooperation of the limiting ring 207 and the first spring 208, bottle lids of different diameters can be clamped.

[0033] Specifically, a cross slide groove adapted to the cross slider 202 is provided on one side of the workbench 1. Both cross sliders 202 are slidably connected in the slide groove. A limit plate 204 is fixedly installed at the center of the slide groove. Under the action of the limit plate 204, the middle position of the bidirectional lead screw 210 will not bend when it rotates, and the two cross sliders 202 will also be prevented from colliding.

[0034] Specifically, the bidirectional lead screw 210 is rotatably connected inside the worktable 1 via a bearing. One end of the bidirectional lead screw 210 extends to the outside of the worktable 1 and is fixedly mounted with a servo motor 201. The operation of the servo motor 201 is controlled, and the output end of the servo motor 201 drives the bidirectional lead screw 210 to rotate in the worktable 1, which has the function of providing power to the two cross sliders 202.

[0035] Specifically, the first spring 208 is located outside the limiting pin 206. Both limiting pins 206 are fixedly installed on one side of the semi-circular clamping plate 205. The semi-circular clamping plate 205 is slidably connected to the top of the semi-circular plate 203. Through the action of the first spring 208, an inward pushing force is applied to the limiting ring 207. After the two semi-circular clamping plates 205 clamp the bottle cap, under the action of the corresponding first spring 208, the movement of the semi-circular plate 203 is prevented from damaging the bottle cap, thus protecting the bottle cap from damage.

[0036] Furthermore, the operation of the servo motor 201 is controlled. The output end of the servo motor 201 drives the bidirectional lead screw 210 to rotate in the worktable 1. The bidirectional lead screw 210 drives the two cross sliders 202 to move simultaneously in the worktable 1 towards the limiting plate 204. Each cross slider 202 drives the corresponding semi-circular plate 203 at its top to move. The semi-circular plate 203 drives the corresponding semi-circular clamping plate 205 at its top to move. The bottle cap opening is placed upward on one side of the two semi-circular clamping plates 205. Under the action of the two semi-circular clamping plates 205, the bottle cap opening is clamped upward.

[0037] Example 2

[0038] Reference Figure 4 , Figure 5 and Figure 6 This is the second embodiment of the present invention, which is based on the previous embodiment and facilitates the replacement of the insertion mechanism 3 of the sealing disc 303.

[0039] The insertion mechanism 3 includes a cylinder 301 fixedly installed on the top of the inner surface of the workbench 1. A female insertion block 304 is fixedly provided at the output end of the cylinder 301. A male insertion block 305 is movably inserted into the female insertion block 304. A sealing plate 303 is fixedly provided at the bottom of the male insertion block 305. A telescopic tube 302 is provided at the top of the sealing plate 303.

[0040] Specifically, the male connector 305 is inserted into the female connector 304, and the operation of the cylinder 301 is controlled. The output end of the cylinder 301 pushes the sealing disc 303 downward, so that the sealing disc 303 completely covers the top of the bottle cap with the opening facing upward, and performs a negative pressure test to check the sealing performance.

[0041] Specifically, the female connector 304 has a locking pin 306 inside, a pull rod 308 is fixedly installed on one side of the locking pin 306, and a second spring 307 is provided on one side of the locking pin 306. Under the action of the second spring 307, a pushing force is applied to the locking pin 306 in the direction of the male connector 305, and the locking pin 306 always remains in the opposite direction to the male connector 305.

[0042] Specifically, a groove adapted to the locking pin 306 is provided on one side of the inner surface of the female plug block 304. The locking pin 306 is slidably connected inside the groove. A slot adapted to the locking pin 306 is provided on one side of the male plug block 305. The locking pin 306 is movably engaged in the groove. By engaging the locking pin 306 into the slot of the male plug block 305, the sealing disc 303 is fixed to the top of the female plug block 304. By pulling the locking pin 306 out of the groove of the male plug block 305, the sealing disc 303 can be removed from the bottom of the female plug block 304.

[0043] Furthermore, manually pull the lever 308 outward. The lever 308 causes the locking pin 306 to move out of the slot of the male connector 305. After removing the sealing disc 303 from the bottom of the female connector 304, place the airtight sealing disc 303 on top of the female connector 304. The sealing disc 303 will insert the male connector 305 into the female connector 304. At this time, the locking pin 306 will be engaged in the slot of the male connector 305. Under the action of the second spring 307, the locking pin 306 will be stably engaged in the male connector 305.

[0044] Working principle: A negative pressure air pump is installed in the inner cavity at the top of the workbench 1 and is connected to the telescopic tube 302. The negative pressure air pump is the same as that disclosed in the prior art. When the bottle cap is placed with the opening facing upwards on one side of the two semi-circular clamping plates 205, the operation of the servo motor 201 is controlled. The output end of the servo motor 201 drives the bidirectional lead screw 210 to rotate in the workbench 1. The bidirectional lead screw 210 drives the two cross sliders 202 to move simultaneously towards the limiting plate 204. The cross sliders 202 drive the corresponding semi-circular plates 202 at their tops. 3. Movement: As the two semicircular plates 203 move, they drive the semicircular clamping plates 205 at their tops to move towards each other. After the semicircular clamping plates 205 contact the bottle cap, the two semicircular clamping plates 205 are pushed outwards. The semicircular clamping plates 205 push the two limiting pins 206 outwards. The limiting pins 206 drive the corresponding limiting rings 207 to move, compressing and deforming the corresponding first springs 208. At the same time as the first springs 208 are compressed, the first springs 208 apply a reverse thrust to the limiting rings 207, causing the semicircular clamping plates 203 to move towards each other. 05. Securely clamp the bottle cap to the outside. Once the cap is clamped with the opening facing upwards, control the operation of cylinder 301. The output end of cylinder 301 pushes the female connector 304 downwards. The female connector 304 presses down on the sealing disc 303 and makes it completely adhere to the bottle cap. Control the operation of the negative pressure air pump in workbench 1. With the assistance of telescopic tube 302, a negative pressure test is performed on the bottle cap. The relevant test data can be obtained through the switch and display screen on one side of workbench 1. Prolonged friction between the sealing disc 303 and the bottle cap will reduce its airtightness. Manually pull the lever 308. The lever 308 moves the locking pin 306 outward, causing the locking pin 306 to disengage from the slot of the male connector 305. Pull the male connector 305 downward from the female connector 304, thereby removing the sealing disc 303 and replacing it with a new one. Insert the male connector 305 into the female connector 304, causing the locking pin 306 to lock into the slot of the male connector 305. Under the action of the second spring 307, the locking pin 306 is pushed into the male connector 305. The male connector 305 can then be replaced.

[0045] It should be noted that in this paper, relational terms such as first and second are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations.

Claims

1. A negative pressure adaptive device for bottle cap sealing test, comprising a worktable (1), characterized in that: The workbench (1) is provided with a clamping mechanism (2) inside, and a plugging mechanism (3) is provided on the top of the clamping mechanism (2). Clamping mechanism (2); includes a bidirectional lead screw (210) disposed inside the workbench (1), a cross slider (202) symmetrically mounted on the outside of the bidirectional lead screw (210) through a threaded sleeve, a semi-circular plate (203) fixedly connected to the top of the cross slider (202), a fixing block (209) symmetrically disposed on the top of the semi-circular plate (203), a limiting pin (206) movably mounted inside the fixing block (209), a limiting ring (207) fixedly connected to the outer surface of the limiting pin (206), a first spring (208) disposed on the side opposite to the fixing block (209) of the limiting ring (207), and a semi-circular clamping plate (205) fixedly connected to one side of the limiting pin (206); The insertion mechanism (3) includes a cylinder (301) fixedly installed on the top of the inner surface of the workbench (1). A female insertion block (304) is fixedly provided at the output end of the cylinder (301). A male insertion block (305) is movably inserted into the female insertion block (304). A sealing plate (303) is fixedly provided at the bottom of the male insertion block (305). A telescopic tube (302) is provided at the top of the sealing plate (303).

2. The negative pressure adaptive device for bottle cap sealing test according to claim 1, characterized in that: The workbench (1) has a cross groove on one side that is adapted to the cross slider (202). Both cross sliders (202) are slidably connected in the groove, and a limit plate (204) is fixedly installed at the center of the groove.

3. The negative pressure adaptive device for bottle cap sealing test according to claim 2, characterized in that: The bidirectional lead screw (210) is rotatably connected inside the worktable (1) via a bearing, and a servo motor (201) is fixedly installed on one end of the bidirectional lead screw (210) extending to the outside of the worktable (1).

4. The negative pressure adaptive device for bottle cap sealing test according to claim 3, characterized in that: The first spring (208) is located outside the limiting pin (206), and both limiting pins (206) are fixedly installed on one side of the semi-circular clamping plate (205), which is slidably connected to the top of the semi-circular plate (203).

5. The negative pressure adaptive device for bottle cap sealing test according to claim 1, characterized in that: The female connector (304) is provided with a locking pin (306) inside. A pull rod (308) is fixedly installed on one side of the locking pin (306), and a second spring (307) is provided on one side of the locking pin (306).

6. The negative pressure adaptive device for bottle cap sealing test according to claim 5, characterized in that: The inner surface of the female connector (304) is provided with a groove that is adapted to the locking pin (306) and the locking pin (306) is slidably connected inside the groove. The male connector (305) is provided with a slot that is adapted to the locking pin (306) and the locking pin (306) is movably engaged in the slot.

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