CN116642647A - A sealing detection device for plastic bottle production - Google Patents

Abstract

The invention relates to the technical field of plastic bottle production, in particular to a tightness detection device for plastic bottle production. The invention provides a tightness detection device for plastic bottle production, which reduces missed detection and improves tightness detection accuracy. A tightness detection device for plastic bottle production comprises a base, a placing seat, a rotary supporting net rack, a trapezoid plate and the like; the base is fixedly provided with a placing seat, the placing seat is rotatably provided with a rotary supporting net rack, and the base is fixedly provided with two trapezoid plates. The movable strip block slides upwards for a certain distance to drive the arc clamping plate to move upwards for a certain distance, so that the place blocked by the arc clamping plate before the plastic bottle is exposed, whether air leakage exists in the place blocked by the arc clamping plate before the side surface of the plastic bottle is detected better, the side surface of the plastic bottle is prevented from being detected in a missing mode, and the tightness detection accuracy of the plastic bottle is improved.

Description

A sealing detection device for plastic bottle production

technical field

The invention relates to the technical field of plastic bottle production, in particular to a sealing performance detection device for plastic bottle production.

Background technique

The sealing test of plastic bottles is to obtain the maximum bearing pressure of the bottle and the distribution of leakage points through the sealing test, so that the manufacturer can determine whether the packaging of the bottle can meet the requirements for the sealing of product packaging in storage, transportation and sales. Require. At present, the method of sealing the plastic bottle is to place the plastic bottle on the testing instrument, and slowly inject pressure gas into the plastic bottle, and the testing instrument will test the airtightness of the plastic bottle. The bottom and the place where the bottle body is in contact with the detection instrument are missing, and when the pressure gas is injected into the plastic bottle, the detection is inaccurate due to the insufficient sealing of the gas injection pipe and the mouth of the plastic bottle. Therefore, it is urgent to design a The utility model relates to a sealing detection device for plastic bottle production which reduces missed detection and improves the accuracy of sealing detection.

Contents of the invention

The invention aims to overcome the disadvantages that the bottom of the plastic bottle and the place where the bottle body is in contact with the detection instrument are easy to miss inspection, and when the pressure gas is injected into the plastic bottle, the insufficient sealing of the gas injection pipe and the mouth of the plastic bottle leads to inaccurate detection. , The technical problem to be solved by the present invention is to provide a sealing performance detection device for plastic bottle production which reduces missed detection and improves the detection accuracy of sealing performance.

In order to solve the above-mentioned technical problems, the present invention provides such a leak detection device for plastic bottle production, which includes a base, a placement base, a rotating support grid, a trapezoidal plate, a lifting and clamping assembly, and an inflation detection assembly. There is a placement seat, the placement seat is rotatably installed with a rotating support grid, and two trapezoidal plates are fixedly installed on the base and are installed symmetrically. The holding component cooperates with the inflation detection component.

Preferably, the lifting and clamping assembly includes an electric push rod, a top moving plate, a fixed wedge bar, an L-shaped support plate, a U-shaped sliding rod, a fixed guide column, an extrusion spring, a fixed groove plate, a sliding bar block, and an arc clip Holding plate and fixed bolt, two electric push rods are fixedly installed on the base and installed symmetrically, the top moving plate is fixedly installed on the top of the two electric push rods, and two fixed wedge-shaped bars are fixedly installed on the top moving plate. Two L-shaped support plates are fixedly installed and installed symmetrically. A U-shaped sliding bar is slidably installed on the L-shaped support plate. A squeeze spring is connected between the L-shaped support plate and the U-shaped sliding bar. The L-shaped support plate A fixed guide column is fixedly installed, and the fixed guide column is slidably connected with the U-shaped sliding rod and passes through the extrusion spring. Two fixed groove plates are fixedly installed on the U-shaped sliding rod, and sliding bars are slidably installed on the fixed groove plate The two sliding bar blocks are jointly fixed with an arc-shaped clamping plate, and the sliding bar block is fixedly equipped with a fixing bolt, and the fixing bolt is in contact with the fixed wedge-shaped bar.

Preferably, the inflation detection assembly includes a fixed support, an air pump, a limit rod, an inflatable telescopic hose, a fixed hollow tube, a fixed ring seat, a fixed support cylinder, a compression spring, an annular pressure gauge and a tightness detector, one of which A fixed support is fixedly installed on the trapezoidal plate, an air pump is fixedly installed on the fixed support, a limited support rod is fixed fixedly installed on the top moving plate, an inflatable telescopic hose is fixedly installed on the air pump, and the inflatable telescopic hose passes through the fixed support and The limit rod, the fixed hollow tube is fixedly installed on the top moving plate, and the fixed hollow tube is connected with the inflatable telescopic hose. Spring, two fixed support cylinders are installed symmetrically at the bottom of the top moving plate, the support cylinder is fixedly connected with the fixed ring seat, the ring pressure gauge is fixedly installed on the fixed hollow tube, and the leak detection is fixedly installed on the other trapezoidal plate instrument.

Preferably, it also includes an anti-collapse mechanism, which includes a fixed slotted plate, a fixed guide column, a support spring, a sliding support plate and a cross limit bar, and a fixed slotted plate is fixedly installed on the trapezoidal plate. A fixed guide cylinder is fixedly installed on the board, and a sliding support plate is slidably installed on the fixed guide cylinder. The sliding support plate is in contact with the fixed support cylinder, and a support spring is connected between the sliding support plate and the trapezoidal plate. Two cross limit strips, the cross limit strips are in contact with the fixed slotted plate.

Preferably, a bottom rotating mechanism is also included, and the bottom rotating mechanism includes a fixed screw, a fixed seat, a ball bearing, a rotating nut, a fixed hollow rod, a pinion, a rotating shaft, a bull gear and a pentagonal connecting seat, and the bottom of the top moving plate is fixed A fixed screw rod is installed, a fixed seat is fixedly installed on the L-shaped support plate, a ball bearing is rotatably installed in the fixed seat, a rotating nut is fixedly installed in the ball bearing, a fixed hollow rod is rotatably installed on the base, and the fixed hollow rod and The rotating nut is fixedly connected, the bottom end of the fixed hollow rod is fixedly installed with a small gear, the base is rotatably installed with a rotating shaft, and a large gear is fixedly installed on the rotating shaft, the large gear meshes with the small gear, and a pentagonal connection is fixedly installed on the rotating shaft seat, and the pentagonal connecting seat is fixedly connected with the rotating support grid.

Preferably, a swing mechanism is also included, and the swing mechanism includes a fixed pressure rod, a swing groove rod and a torsion spring. The bolt is rotationally connected with the swing groove bar, and a torsion spring is connected between the swing groove bar and the U-shaped slide bar.

Preferably, a bottle mouth sealing assembly is also included, and the bottle mouth sealing assembly includes a vertical slotted plate, a sliding bar and a sealing ring, two vertical slotted plates are fixedly installed on the top moving plate, and slide on the fixed ring seat There are two sliding bars in the type connection, and the sliding bars are slidingly connected with the vertical slotted plate, and a sealing ring is fixedly installed on the sliding bars.

Working principle: In the actual operation process, the operator places the plastic bottle to be detected on the rotating support grid, the operator opens the valve of the air pump, the gas will be transported from the inflatable telescopic hose to the fixed hollow tube, and then the operator starts the motor The push rod moves down, the electric push rod drives the top moving plate to move down, the top moving plate moves down to drive the fixed wedge bar to move down, the fixed wedge bar will push the fixed bolt to move towards the direction of the plastic bottle, and the fixed bolt moves towards the plastic bottle. The direction movement of the plastic bottle drives the U-shaped sliding bar to move towards the direction close to the plastic bottle, and the movement of the U-shaped sliding bar towards the direction close to the plastic bottle drives the arc-shaped clamping plate to move towards the direction close to the plastic bottle until the two arc-shaped clamps The plate moves to clamp the plastic bottle, and at the same time, the top moving plate moves downward to drive the inflatable telescopic hose, fixed hollow tube, fixed ring seat, fixed support cylinder, compression spring and ring pressure gauge to move downward together, and the compression spring is in a compressed state , the fixed hollow tube moves down to contact with the mouth of the plastic bottle, the gas will be injected into the plastic bottle from the fixed hollow tube, the fixed ring seat moves down to block the mouth of the plastic bottle, the gas is injected into the plastic bottle, and the plastic bottle The air pressure will be detected by the annular pressure gauge, and then the annular pressure gauge will display the air pressure value on the airtightness tester. The operator can judge whether the plastic bottle is leaking according to the air pressure value displayed on the airtightness tester, so as to achieve the purpose of checking the plastic bottle. The function of leak detection.

When the fixed hollow tube moves down to contact with the mouth of the plastic bottle, the downward movement of the fixed support cylinder will drive the sliding support plate to move downward, so that the support spring is in a compressed state, and the downward movement of the sliding support plate will drive the cross limit The bar moves down, and the cross limit bar moves down to contact with the other end of the groove of the fixed slotted plate. The fixed slotted plate will limit the sliding support plate to continue to move downward, and the sliding support plate will stop moving. The cylinder and the fixed ring seat no longer continue to move, so as to prevent the fixed ring seat from continuing to move downward and thereby crushing the plastic bottle.

The top moving plate moves down to drive the fixed screw to move down, the fixed screw moves down to contact with the rotating nut, the fixed screw drives the rotating nut to rotate, the rotating nut drives the fixed hollow rod to rotate, and the fixed hollow rod rotates to drive the pinion Rotation, the rotation of the small gear drives the rotation of the large gear, the rotation of the large gear drives the rotation of the rotation shaft, the rotation of the rotation shaft drives the rotation of the pentagonal connection seat and the rotation support grid, and the rotation of the rotation support grid slightly, so that when the plastic bottle is detected, the plastic bottle is detected. The place blocked by the rotating support grid is exposed, so as to better detect whether there is air leakage at the place blocked by the rotating support grid at the bottom of the plastic bottle, thereby achieving the function of avoiding missed inspection of the bottom of the plastic bottle.

The top moving plate moves down to drive the fixed pressure rod to move down, and the fixed pressure rod moves down to contact with the swing groove rod, and the fixed pressure rod will push one end of the swing groove rod to swing down, making the other end of the swing groove rod to swing up , the other end of the oscillating groove rod swings upwards, which will drive the sliding bar to move upwards for a certain distance, so that the torsion spring has a torsion force, and the sliding bar moves upwards for a certain distance to drive the arc-shaped clamping plate to move upwards for a certain distance, so that the plastic bottle was previously arc-shaped The place blocked by the clamping plate is exposed, so as to better detect whether there is air leakage on the side of the plastic bottle that was previously blocked by the arc-shaped clamping plate, prevent the side of the plastic bottle from being missed, and improve the accuracy of the sealing of the plastic bottle.

The downward movement of the top moving plate drives the two vertical slotted plates to move downward, the downward movement of the two vertical slotted plates drives the two sliding bars to move inward, and the two sliding bars move inward to drive the two seals The ring seals the mouth of the plastic bottle, which can further prevent the air leakage from the bottle mouth from affecting the accuracy of the plastic bottle sealing test. When the electric push rod moves upward, the top moving plate will reset under the action of the extrusion spring, and the top The moving plate drives the inflatable telescopic hose, the fixed hollow tube, the fixed ring seat, the fixed screw, the fixed support cylinder and the ring pressure gauge to move upward and reset together. Reset under the action of the spring, the sliding support plate will be reset under the action of the supporting spring, the fixed screw rod will move upward to reset, it will drive the rotating nut and the fixed hollow rod to rotate and reset, and the fixed hollow rod will drive the small gear, the large gear and the pentagonal connecting seat when it rotates and resets Rotate and reset, and the pentagonal connecting seat rotates and resets to drive the rotating support grid frame to rotate and reset. After the airtightness test of the plastic bottle is completed, the operator closes the valve of the air pump and closes the electric push rod.

Beneficial effect:

1. The operator opens the valve of the air pump, and then the operator starts the electric push rod to move downward, so that the U-shaped sliding rod moves toward the two arc-shaped clamping plates to clamp the plastic bottle, and at the same time, the top moving plate moves downward to drive and fix the bottle. The hollow tube, the fixed ring seat, and the ring pressure gauge move down together, and the fixed ring seat moves down to block the mouth of the plastic bottle. The gas is injected into the plastic bottle from the fixed hollow tube, and the air pressure in the plastic bottle will be detected by the ring pressure gauge. Then the ring pressure gauge displays the air pressure value on the airtightness tester, and the operator can judge whether the plastic bottle is leaking according to the air pressure value displayed on the airtightness tester, so as to achieve the function of airtightness test on the plastic bottle.

2. The rotation of the rotating shaft drives the pentagonal connecting seat and the rotating support grid to rotate, and the rotating support grid rotates slightly, so that the place where the plastic bottle was previously blocked by the rotating support grid is exposed, so as to better detect the bottom of the plastic bottle that was previously supported by the rotation Whether there is air leakage in the place blocked by the grid frame, to prevent the bottom of the plastic bottle from being missed, the moving bar slides up for a certain distance to drive the arc-shaped clamping plate to move upward for a certain distance, so that the place where the plastic bottle was previously blocked by the arc-shaped clamping plate is exposed , so as to better detect whether there is air leakage at the place where the side of the plastic bottle was previously blocked by the arc-shaped clamping plate, prevent the side of the plastic bottle from missing inspection, and improve the accuracy of the sealing of the plastic bottle.

3. The downward movement of the top moving plate drives the two vertical slotted plates to move downward. The downward movement of the two vertical slotted plates drives the two sliding bars to move inward. A sealing ring seals the mouth of the plastic bottle, which can further prevent air leakage from the bottle mouth from affecting the airtightness test of the plastic bottle.

Description of drawings

Fig. 1 is a schematic diagram of the first three-dimensional structure of the present invention.

Fig. 2 is a schematic diagram of the second three-dimensional structure of the present invention.

Fig. 3 is a schematic diagram of a third three-dimensional structure of the present invention.

Fig. 4 is a schematic diagram of a fourth three-dimensional structure of the present invention.

Fig. 5 is a schematic perspective view of the three-dimensional structure of the lifting and clamping assembly of the present invention.

Fig. 6 is a schematic diagram of the first partial three-dimensional structure of the present invention.

Fig. 7 is a schematic perspective view of the bottom rotation mechanism of the present invention.

Fig. 8 is a schematic perspective view of the second part of the present invention.

Fig. 9 is a schematic perspective view of the third part of the present invention.

Fig. 10 is a schematic perspective view of the three-dimensional structure of the present invention A.

The marks in the drawings are: 1-base, 2-placement seat, 3-rotating support grid, 4-trapezoidal plate, 5-lifting and clamping assembly, 51-electric push rod, 52-top moving plate, 53-fixing Wedge bar, 54-L-shaped support plate, 55-U-shaped sliding rod, 56-fixed guide column, 57-extrusion spring, 58-fixed groove plate, 59-sliding bar block, 510-arc clamping plate, 511 -fixed bolt, 6-inflatable detection component, 61-fixed support, 62-air pump, 63-limiting rod, 64-inflatable telescopic hose, 65-fixed hollow tube, 66-fixed ring seat, 67-fixed support Cylinder, 68-compression spring, 69-ring pressure gauge, 610-sealing tester, 7-anti-collapse mechanism, 71-fixed slotted plate, 72-fixed guide cylinder, 73-support spring, 74-sliding support plate , 75-cross limit bar, 8-bottom rotation mechanism, 81-fixed screw, 82-fixed seat, 83-ball bearing, 84-rotating nut, 85-fixed hollow rod, 86-pinion, 87-rotating shaft , 88-big gear, 89-pentagonal connecting seat, 9-swing mechanism, 91-fixed pressure rod, 92-swing groove rod, 93-torsion spring, 11-bottle seal assembly, 111-vertical slotted plate, 112 - sliding bar, 113 - sealing ring.

Detailed ways

The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

Example 1

A leak detection device for plastic bottle production, as shown in Figure 1-6, includes a base 1, a placement base 2, a rotating support grid 3, a trapezoidal plate 4, a lifting and clamping assembly 5 and an inflation detection assembly 6, the base 1 is fixedly installed with a placement seat 2, and the placement seat 2 is rotatably installed with a rotating support grid frame 3, which is used to support plastic bottles. Two trapezoidal plates 4 are fixedly installed on the base 1 and are installed symmetrically. The plate 4 is provided with a lifting and clamping assembly 5, which is used to clamp the plastic bottle and inject pressure gas from the mouth of the plastic bottle, and the trapezoidal plate 4 is provided with an inflation detection assembly 6, which is used to control the The airtightness of the plastic bottle is detected, and the lifting and clamping assembly 5 cooperates with the inflation detection assembly 6 .

The lifting and clamping assembly 5 includes an electric push rod 51, a top moving plate 52, a fixed wedge bar 53, an L-shaped support plate 54, a U-shaped sliding rod 55, a fixed guide column 56, an extrusion spring 57, a fixed groove plate 58, a sliding Bar 59, arc-shaped clamping plate 510 and fixed bolt 511, two electric push rods 51 are fixedly connected with bolts on the base 1 and installed symmetrically, the electric push rods 51 are used to provide power, and the tops of the two electric push rods 51 Commonly welded with a top moving plate 52, two fixed wedge bars 53 are welded on the top moving plate 52, two L-shaped support plates 54 are welded on the base 1 and installed symmetrically, and U Shaped slide bar 55, is connected with extruding spring 57 between L-shaped support plate 54 and U-shaped slide bar 55, is welded with fixed guide post 56 on L-shaped support plate 54, fixed guide post 56 and U-shaped slide bar 55 sliding type Connect and pass through the extruding spring 57, two fixed groove plates 58 are welded on the U-shaped sliding bar 55, and a sliding bar 59 is slidably installed on the fixed groove plate 58, and arc-shaped joints are welded on the two sliding bar blocks 59. The clamping plate 510, the arc clamping plate 510 is used to fix the plastic bottle, the sliding bar block 59 is welded with a fixing bolt 511, and the fixing bolt 511 is in contact with the fixing wedge-shaped bar 53.

The inflation detection assembly 6 includes a fixed support 61, an air pump 62, a limit pole 63, an inflation flexible hose 64, a fixed hollow tube 65, a fixed ring seat 66, a fixed support cylinder 67, a compression spring 68, an annular pressure gauge 69 and Sealing tester 610, one of the trapezoidal plates 4 is welded with a fixed support 61, and the fixed support 61 is fixedly connected with an air pump 62 by bolts, the air pump 62 is used to output pressure gas, and the top moving plate 52 is welded with a limit support rod 63, the air pump 62 is fixedly installed with an inflatable flexible hose 64, the inflatable flexible hose 64 passes through the fixed support 61 and the limit pole 63, and the top moving plate 52 is fixedly installed with a fixed hollow tube 65, which is used for the fixed hollow tube 65 When the pressure gas is injected into the mouth of the bottle, the fixed hollow tube 65 communicates with the inflatable telescopic hose 64, and a fixed ring seat 66 is slidably installed on the fixed hollow tube 65, and a compression spring 68 is connected between the top moving plate 52 and the fixed ring seat 66. , two fixed support cylinders 67 are welded on the bottom of the top moving plate 52 and installed symmetrically, the support cylinders are fixedly connected to the fixed ring base 66, and an annular pressure gauge 69 is fixedly installed on the fixed hollow tube 65, which is used to detect plastic The inner pressure value of the bottle, the other trapezoidal plate 4 is fixedly connected with a tightness detector 610 by bolts, and the tightness detector 610 is used to display the inner pressure value of the plastic bottle.

Working principle: In the actual operation process, the operator places the plastic bottle to be detected on the rotating support grid 3, the operator opens the valve of the air pump 62, and the gas will be transported from the inflatable telescopic hose 64 to the fixed hollow pipe 65, and then The operator starts the electric push rod 51 to move downward, and the electric push rod 51 drives the top movable plate 52 to move downward, and the top movable plate 52 moves downward to drive the fixed wedge-shaped bar 53 to move downward, and the fixed wedge-shaped bar 53 will push the fixed bolt 511 toward Move in the direction close to the plastic bottle, the fixed bolt 511 moves in the direction close to the plastic bottle and drives the U-shaped sliding rod 55 to move in the direction close to the plastic bottle, and the U-shaped sliding rod 55 moves in the direction close to the plastic bottle to drive the arc-shaped clamping plate 510 Move towards the direction close to the plastic bottle until the two arc-shaped clamping plates 510 move to clamp the plastic bottle, and at the same time the top moving plate 52 moves downward to drive the inflatable telescopic hose 64, the fixed hollow tube 65, the fixed ring seat 66, The fixed support cylinder 67, the compression spring 68 and the ring pressure gauge 69 move downward together, the compression spring 68 is in a compressed state, the fixed hollow tube 65 moves down to contact with the mouth of the plastic bottle, and the gas will be injected into the plastic bottle from the fixed hollow tube 65 Inside, the fixed ring seat 66 moves down to block the mouth of the plastic bottle, the gas is injected into the plastic bottle, the air pressure in the plastic bottle will be detected by the ring pressure gauge 69, and then the ring pressure gauge 69 will display the air pressure value in the sealing test On the instrument 610, the operator can judge whether the plastic bottle is leaking according to the air pressure value displayed on the airtightness tester 610, so as to achieve the function of performing airtightness test on the plastic bottle.

Example 2

On the basis of Embodiment 1, as shown in Figure 7-10, it also includes an anti-collapse mechanism 7, which includes a fixed slotted plate 71, a fixed guide column 72, a support spring 73, a sliding support Plate 74 and cross limit bar 75, trapezoidal plate 4 is welded with fixed slotted plate 71, trapezoidal plate 4 is welded with fixed guide cylinder 72, fixed guide cylinder 72 is slidably installed with sliding support plate 74, sliding support plate 74 Located directly below the top moving plate 52, the sliding support plate 74 is in contact with the fixed support cylinder 67, a support spring 73 is connected between the sliding support plate 74 and the trapezoidal plate 4, and two cross limit bars 75 are welded on the sliding support plate 74 , The cross limit bar 75 is used to limit the left and right swing of the sliding support plate 74, and the cross limit bar 75 is in contact with the fixed slotted plate 71.

Bottom rotation mechanism 8 is also included, and bottom rotation mechanism 8 includes fixed screw rod 81, fixed seat 82, ball bearing 83, rotating nut 84, fixed hollow rod 85, pinion 86, rotating shaft 87, bull gear 88 and pentagonal connection Seat 89, fixed screw rod 81 is fixedly installed at the bottom of top moving plate 52, fixed seat 82 is fixedly installed on the L-shaped support plate 54, ball bearing 83 is installed in the fixed seat 82, and ball bearing 83 is installed through bearing in ball bearing 83 Part 84, the base 1 is rotatably equipped with a fixed hollow rod 85, the fixed hollow rod 85 is fixedly connected with the rotating nut part 84, the bottom end of the fixed hollow rod 85 is equipped with a pinion 86 through a flat key, and the pinion 86 is located at the rotating nut part 84 Directly below, the base 1 is rotatably equipped with a rotating shaft 87, a large gear 88 is installed on the rotating shaft 87 through a flat key, the large gear 88 meshes with the pinion 86, and a pentagonal connecting seat 89 is installed on the rotating shaft 87 through a flat key , The pentagonal connecting seat 89 is located directly above the bull gear 88, and the pentagonal connecting seat 89 is fixedly connected with the rotating support grid 3.

Also include swinging mechanism 9, swinging mechanism 9 includes fixed pressing bar 91, swing groove bar 92 and torsion spring 93, two fixed pressing bars 91 are welded on the bottom of top moving plate 52, and swinging type is installed on the sliding bar block 59. Groove bar 92, swing groove bar 92 is positioned at fixed pressure bar 91 just below, fixed bolt 511 is connected with swing groove bar 92 rotationally, is connected with torsion spring 93 between swing groove bar 92 and U-shaped slide bar 55.

Also include a bottle mouth sealing assembly 11, the bottle mouth sealing assembly 11 includes a vertical slotted plate 111, a sliding bar 112 and a sealing ring 113, two vertical slotted plates 111 are welded on the top moving plate 52, and the fixed ring Two sliding bars 112 are slidably connected on the seat 66, and the sliding bar 112 is slidably connected with the vertical grooved plate 111. The sliding bar 112 is welded with a sealing ring 113, and the sealing ring 113 is used for sealing the bottle mouth.

When the fixed hollow tube 65 moves downward to contact with the mouth of the plastic bottle, the downward movement of the fixed support cylinder 67 will drive the sliding support plate 74 to move downward, so that the support spring 73 is in a compressed state, and the sliding support plate 74 moves downward It will drive the cross limit bar 75 to move downward, and the cross limit bar 75 will move down to contact with the other end of the groove of the fixed slotted plate 71, and the fixed slotted plate 71 will limit the sliding support plate 74 to continue to move downward, and the sliding If the support plate 74 does not continue to move, the fixed support cylinder 67 and the fixed ring seat 66 will not continue to move, so as to prevent the fixed ring seat 66 from continuing to move downwards and crush the plastic bottle.

The top moving plate 52 moves downwards to drive the fixed screw rod 81 to move downwards, and the fixed screw rod 81 moves downwards to contact with the rotating nut part 84. The fixed screw rod 81 drives the rotating nut part 84 to rotate, and the rotation of the rotating nut part 84 drives the fixed hollow rod 85 to rotate. , the fixed hollow rod 85 rotates to drive the pinion 86 to rotate, the pinion 86 rotates to drive the bull gear 88 to rotate, the bull gear 88 rotates to drive the rotating shaft 87 to rotate, and the rotating shaft 87 rotates to drive the pentagonal connecting seat 89 and the rotating support grid 3 to rotate, and the rotation The support frame 3 rotates slightly, so that when the plastic bottle is detected, the place where the plastic bottle is blocked by the rotating support frame 3 is exposed, so as to better detect whether there is a leak in the place blocked by the rotating support frame 3 at the bottom of the plastic bottle Air, so as to achieve the function of avoiding the missed detection of the bottom of the plastic bottle.

The top moving plate 52 moves downwards to drive the fixed pressure rod 91 to move downwards, and the fixed pressure rod 91 moves downwards to contact with the swing groove rod 92, and the fixed pressure rod 91 will push one end of the swing groove rod 92 to swing downward, so that the swing groove The other end of the rod 92 swings upwards, and the other end of the swing groove rod 92 swings upwards to drive the sliding bar block 59 to move upwards for a certain distance, so that the torsion spring 93 has a torsion force, and the sliding bar block 59 moves upwards for a certain distance to drive the arc-shaped clamping plate 510 Move up a certain distance, so that the place where the plastic bottle was previously blocked by the arc-shaped clamping plate 510 is exposed, so as to better detect whether there is air leakage at the place previously blocked by the arc-shaped clamping plate 510 on the side of the plastic bottle, and prevent the side of the plastic bottle from leaking. Missed detection, improve the accuracy of plastic bottle sealing detection.

The top moving plate 52 moves downwards to drive the two vertical slotted plates 111 to move downwards, and the downward movement of the two vertical slotted plates 111 drives the two sliding bars 112 to move inwards, and the two sliding bars 112 move inwards. Drive two sealing rings 113 close together to seal the mouth of the plastic bottle, which can further prevent air leakage from the mouth of the bottle from affecting the accuracy of the plastic bottle airtightness detection. When the electric push rod 51 moves upward, the top moving plate 52 will squeeze Reset under the action of the pressure spring 57, the top moving plate 52 drives the inflatable telescopic hose 64, the fixed hollow tube 65, the fixed ring seat 66, the fixed screw 81, the fixed support column 67 and the ring pressure gauge 69 to move upward and reset together, U-shaped sliding The rod 55 will be reset under the action of the extrusion spring 57, the swing groove bar 92 will be reset under the action of the torsion spring 93, the sliding support plate 74 will be reset under the action of the support spring 73, and the upward movement and reset of the fixed screw rod 81 will drive the rotating nut Part 84 and fixed hollow rod 85 rotate and reset, and fixed hollow rod 85 rotates and resets and drives pinion 86, bull gear 88 and pentagonal connecting seat 89 to rotate and reset, and pentagonal connecting seat 89 rotates and resets and drives rotating support grid 3 to rotate and reset. After the airtightness detection of the plastic bottle is completed, the operator closes the valve of the air pump 62 and closes the electric push rod 51 .

The above-mentioned embodiments only express the preferred implementation of the present invention, and the description thereof is relatively specific and detailed, but should not be construed as limiting the patent scope of the present invention. It should be noted that those skilled in the art can make several modifications, improvements and substitutions without departing from the concept of the present invention, and these all belong to the protection scope of the present invention. Therefore, the protection scope of the patent for the present invention should be based on the appended claims.

Claims (7)

1. The utility model provides a leakproofness detection device is used in plastic bottle production, a serial communication port, including base (1), place seat (2), rotatory support rack (3), trapezoidal board (4), lift clamping assembly (5) and aerify detection assembly (6), fixed mounting has on base (1) and places seat (2), place seat (2) rotation type and install rotatory support rack (3), fixed mounting has two trapezoidal boards (4) and be symmetrical installation on base (1), be equipped with on trapezoidal board (4) and go up and down clamping assembly (5), be equipped with on trapezoidal board (4) and aerify detection assembly (6), go up and down clamping assembly (5) and aerify detection assembly (6) and mutually support.

2. The tightness detection device for plastic bottle production according to claim 1, wherein the lifting clamping assembly (5) comprises an electric push rod (51), a top moving plate (52), a fixed wedge-shaped strip (53), an L-shaped supporting plate (54), a U-shaped sliding rod (55), a fixed guide post (56), a pressing spring (57), a fixed groove plate (58), a sliding strip block (59), an arc clamping plate (510) and a fixed bolt (511), wherein the two electric push rods (51) are fixedly arranged on a base (1) and symmetrically arranged, the top moving plate (52) is fixedly arranged at the top ends of the two electric push rods (51), the two fixed wedge-shaped strips (53) are fixedly arranged on the top moving plate (52), the two L-shaped supporting plates (54) are fixedly arranged on the base (1) and symmetrically arranged, the U-shaped sliding rod (55) is slidably arranged on the L-shaped supporting plate (54), the pressing spring (57) is connected between the L-shaped supporting plate (54) and the U-shaped sliding rod (55), the fixed guide post (56) is fixedly arranged on the L-shaped supporting plate (54), the fixed guide post (56) is fixedly arranged on the fixed guide post (56), the fixed guide post (56) is connected with the U-shaped sliding rod (55) in a way, and the fixed groove (55) is fixedly arranged on the U-shaped sliding rod (55), the fixed groove plates (58) are provided with sliding strip blocks (59) in a sliding mode, the two sliding strip blocks (59) are fixedly provided with arc-shaped clamping plates (510) together, the sliding strip blocks (59) are fixedly provided with fixed bolts (511), and the fixed bolts (511) are contacted with the fixed wedge-shaped strips (53).

3. The tightness detection device for plastic bottle production according to claim 2, wherein the inflation detection assembly (6) comprises a fixed support (61), an air pump (62), a limit strut (63), an inflation telescopic hose (64), a fixed hollow tube (65), a fixed ring seat (66), a fixed support cylinder (67), a compression spring (68), an annular pressure gauge (69) and a tightness detector (610), wherein the fixed support (61) is fixedly arranged on one trapezoid plate (4), the air pump (62) is fixedly arranged on the fixed support (61), the limit strut (63) is fixedly arranged on the top movable plate (52), the inflation telescopic hose (64) is fixedly arranged on the air pump (62), the inflation telescopic hose (64) penetrates through the fixed support (61) and the limit strut (63), the fixed hollow tube (65) is fixedly arranged on the top movable plate (52), the fixed hollow tube (65) is communicated with the inflation telescopic hose (64), the fixed ring seat (66) is slidably arranged on the fixed hollow tube (65), the compression spring (68) is connected between the top movable plate (52) and the fixed ring seat (66), the top movable plate (52) is fixedly arranged on the fixed support cylinder (67), the bottom of the fixed support cylinder seat (66) is fixedly connected with the fixed support cylinder (67), an annular pressure gauge (69) is fixedly arranged on the fixed hollow pipe (65), and a tightness detector (610) is fixedly arranged on the other trapezoid plate (4).

4. The tightness detection device for plastic bottle production according to claim 3, further comprising an anti-collapse mechanism (7), wherein the anti-collapse mechanism (7) comprises a fixed slotted plate (71), a fixed guide cylinder (72), a support spring (73), a sliding support plate (74) and a cross limiting bar (75), the fixed slotted plate (71) is fixedly installed on the trapezoid plate (4), the fixed guide cylinder (72) is fixedly installed on the trapezoid plate (4), the sliding support plate (74) is slidably installed on the fixed guide cylinder (72), the sliding support plate (74) is in contact with the fixed support cylinder (67), the support spring (73) is connected between the sliding support plate (74) and the trapezoid plate (4), the two cross limiting bars (75) are fixedly installed on the sliding support plate (74), and the cross limiting bar (75) is in contact with the fixed slotted plate (71).

5. The tightness detection device for plastic bottle production according to claim 4, further comprising a bottom rotating mechanism (8), wherein the bottom rotating mechanism (8) comprises a fixed screw (81), a fixed seat (82), a ball bearing (83), a rotating nut member (84), a fixed hollow rod (85), a pinion (86), a rotating shaft (87), a large gear (88) and a pentagonal connecting seat (89), the fixed screw (81) is fixedly arranged at the bottom of the top moving plate (52), the fixed seat (82) is fixedly arranged on the L-shaped supporting plate (54), the ball bearing (83) is rotatably arranged in the fixed seat (82), the rotating nut member (84) is fixedly arranged in the ball bearing (83), the fixed hollow rod (85) is fixedly connected with the rotating nut member (84) on the base (1), the small gear (86) is fixedly arranged at the bottom end of the fixed hollow rod (85), the large gear (88) is fixedly arranged on the rotating shaft (87), the large gear (88) is meshed with the small gear (86), the pentagonal connecting seat (89) is fixedly arranged on the rotating shaft (1), the pentagonal connecting seat (89) is fixedly connected with the rotary supporting net rack (3).

6. The tightness detection device for plastic bottle production according to claim 5, further comprising a swinging mechanism (9), wherein the swinging mechanism (9) comprises a fixed pressing rod (91), a swinging groove rod (92) and a torsion spring (93), two fixed pressing rods (91) are fixedly arranged at the bottom of the top moving plate (52), the swinging groove rod (92) is slidably arranged on the sliding bar (59), the fixed bolt (511) is rotatably connected with the swinging groove rod (92), and the torsion spring (93) is connected between the swinging groove rod (92) and the U-shaped sliding rod (55).

7. The tightness detection device for plastic bottle production according to claim 6, further comprising a bottle opening sealing assembly (11), wherein the bottle opening sealing assembly (11) comprises a vertical slotted plate (111), sliding bars (112) and a sealing ring (113), two vertical slotted plates (111) are fixedly installed on the top moving plate (52), two sliding bars (112) are slidingly connected on the fixed ring seat (66), and the sliding bars (112) are slidingly connected with the vertical slotted plates (111), and the sealing ring (113) is fixedly installed on the sliding bars (112).