Testing machine for pressure in glass bottle

Abstract

The utility model relates to the technical field of pressure testing machinery, in particular to a pressure testing machine in a glass bottle. Comprising a test cabinet and an electrical box arranged on the upper portion of the test cabinet, a clamp device suitable for bottles to be detected of different sizes and a pressurizing device arranged above the clamp device are arranged in the test cabinet, the pressurizing device comprises a high-pressure oil cylinder and a plugging head pushed by the high-pressure oil cylinder to move downwards, the plugging head is connected with a water adding device, and the water adding device is connected with a water pump. The water adding device comprises a pressure-resistant water pipe which penetrates through the plugging head to add water to the bottle to be detected, and a stepping motor controls and pushes a piston to gradually move in a hydraulic cylinder, so that water flows into the bottle to be detected through the pressure-resistant water pipe to apply pressure to the bottle to be detected. A complete detection and treatment process is formed from fixture fixing and sealing of the to-be-detected bottle, pressure testing and final packaging treatment, and the working efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of pressure test machinery, in particular to a pressure tester for glass bottles. Background Art

[0002] In the current beverage market, beverages such as beer and cola are mostly packaged in glass bottles and cans. For safety considerations, glass bottles and cans must have a certain internal pressure resistance performance. Before leaving the factory, glass bottles and cans must undergo sampling tests for internal pressure resistance. Especially for beer bottles and beverage bottles, their internal pressure resistance performance is a key technical indicator. However, at present, the domestic commonly used pressure testers for glass bottles work by using compressed air to push the piston of the pressure cylinder to increase the water pressure in the test bottle. But such testers cannot effectively control the pressurization rate and cannot meet the requirements of the new national standard. In addition, the clamping devices of the existing internal pressure testers often cannot be applied to various types of glass bottles. When it is necessary to replace glass bottles of different shapes, it becomes very troublesome and is not adaptable to the sealing of the bottle mouths of different bottles. Therefore, there is an urgent need for an internal pressure tester that can be applied to glass bottles of different shapes. Content of the Utility Model

[0003] In order to solve the problems of controlling the pressurization speed and clamping glass bottles of various sizes, the utility model provides a pressure tester for glass bottles.

[0004] A pressure tester for glass bottles provided by the utility model adopts the following technical scheme:

[0005] A pressure tester for glass bottles includes a test cabinet and an electrical box arranged on the upper part of the test cabinet. A clamping device applicable to test bottles of different sizes is arranged inside the test cabinet, and a pressurizing device is arranged above the clamping device. The pressurizing device includes a high-pressure oil cylinder, a sealing head pushed downward by the high-pressure oil cylinder. The sealing head is connected with a water adding device. The water adding device includes a pressure-resistant water pipe passing through the sealing head to add water to the test bottle, a hydraulic cylinder connected to the water inlet end of the pressure-resistant water pipe, a piston arranged inside the hydraulic cylinder for the compressed water to flow out, a push rod connected to the piston, and a stepping motor connected to the push rod and controlling the movement of the push rod. The stepping motor controls the gradual movement of the piston in the hydraulic cylinder, so that water flows into the test bottle through the pressure-resistant water pipe to apply pressure to the test bottle.

[0006] Furthermore, a packing device is arranged below the clamping device inside the test cabinet. The packing device includes a collection box with an open top, a heating rod fixedly arranged along one edge of the opening of the collection box, a push rod arranged on the other edge opposite to the heating rod, and a telescopic rod connected to the push rod and pushing the push rod to contact the heating rod.

[0007] Further, a sensing device for detecting a bottle to be inspected is provided inside the test cabinet. The sensing device includes a transmitter disposed on one side wall of the test cabinet and a receiver disposed on the other side wall of the test cabinet.

[0008] Further, the fixture device includes a fixing component and a clamping component. The clamping component includes at least two clamping members, and the cross-section of the clamping member is arc-shaped.

[0009] Further, an anti-slip pad is provided at a position on the side of the clamping member opposite to the bottle to be inspected.

[0010] Further, the fixing component is provided with a threaded through hole. The clamping component includes an adjusting screw rod. One end of the adjusting screw rod is connected to the clamping member, and the other end passes through the threaded through hole and is connected to the fixing component. The adjusting screw rod can drive the clamping member to move.

[0011] Further, the clamping component includes a clamping rod. The clamping rod slidably passes through the side wall of the fixing component. A mounting seat is fixedly installed on the clamping rod. An air supply pump is provided at the top of the mounting seat. The air outlet end of the air supply pump is connected to an air supply pipeline. The air supply pipeline is connected to a clamping airbag installed on the clamping member. The clamping airbag is a plurality of clamping airbags extending towards the bottle to be inspected. A plurality of bolt holes are provided on the clamping rod. The clamping rod is threadedly connected to the fixing component through the bolt holes.

[0012] Further, a deflation solenoid valve is provided at the bottom of the mounting seat. One end of the deflation solenoid valve is connected to a deflation pipeline. The deflation pipeline is connected to the clamping airbag.

[0013] Further, the plugging head includes a cylindrical through-hole metal part and a multi-nested sealing sleeve fixedly connected to the bottom of the metal part. A first round hole for passing through a pressure-resistant water pipe is provided on the side wall of the metal part, and a second round hole for passing through a pressure-resistant water pipe is provided at the center of the sealing sleeve.

[0014] Further, the sealing sleeve is a columnar rubber structure. At least two nested layers are provided on its bottom surface. The at least two nested layers are annular rubber rings arranged around the central axis of the sealing sleeve. The annular rubber rings protrude from the bottom surface, and the annular rubber rings of the at least two nested layers are closely arranged.

[0015] Further, the hydraulic cylinder is a cylindrical metal cylinder body, including an end cover and a closed end opposite to the end cover. A water outlet for connecting a pressure-resistant water pipe is provided on the end cover. The output end of the stepping motor is connected to a ball screw through a coupling. The other end of the ball screw is connected to one end of a push rod. The other end of the push rod passes through the end cover and is connected to a piston moving inside the metal cylinder body.

[0016] In summary, the utility model has the following beneficial technical effects:

[0017] 1. A pressure testing machine for glass bottles of the present utility model can perform accurate and efficient internal pressure testing on glass bottles through the coordinated action of a high-pressure oil cylinder, a plugging head, and a water adding device. The pressure increases linearly, which can ensure the accuracy and reliability of the detection results.

[0018] 2. A pressure testing machine for glass bottles of the present utility model. The fixture device includes an adjustable clamping member with a structure of an anti-slip pad and a clamping airbag, which can adapt to glass bottles of different sizes to be inspected, improving the versatility of the equipment. In addition, the plugging head adopts a multi-nested sealing sleeve structure, enhancing the sealing performance during the testing process and ensuring the stability of the pressure testing.

[0019] 3. A pressure testing machine for glass bottles of the present utility model has a safety protection function. By setting a sensing device, it can detect whether there is a glass bottle to be inspected in the testing machine to prevent abnormal operation of the equipment caused by misoperation. At the same time, when the glass bottle to be inspected breaks, since the receiver detects the signal transmitted in opposite directions, it can control the equipment to stop running, ensuring the safety of the testing process.

[0020] 4. A pressure testing machine for glass bottles of the present utility model forms a complete detection and processing process from fixing and sealing the fixture of the glass bottle to be inspected, pressure testing to the final packing process, improving the work efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 is a schematic structural diagram of a pressure testing machine for glass bottles according to an embodiment of the present utility model.

[0022] Figure 2 is a schematic structural diagram of the plugging head according to an embodiment of the present utility model.

[0023] Figure 3 is a schematic structural diagram of the packing device according to an embodiment of the present utility model.

[0024] Figure 4 is a schematic structural diagram of the fixture device according to an embodiment of the present utility model.

[0025] Figure 5 is a schematic structural diagram of another fixture device according to an embodiment of the present utility model.

[0026] Figure 6 is a schematic structural diagram of the water adding device according to an embodiment of the present utility model.

[0027] Among them, 1. Test cabinet; 2. Electrical box; 3. Fixture device; 301. Fixing component; 302. Clamping piece; 303. Anti-slip pad; 304. Threaded through hole; 305. Adjusting screw; 306. Driving seat; 307. Air supply pump; 308. Clamping airbag; 309. Bolt hole; 4. High-pressure oil cylinder; 5. Plugging head; 501. Metal part; 502. First round hole; 503. Second round hole; 504. Annular rubber ring; 6. Water adding device; 601. Pressure-resistant water pipe; 602. Hydraulic cylinder; 603. Piston; 604. Push rod; 605. Stepper motor; 606. Ball screw; 607. Reducing box; 7. Packing device; 701. Collection box; 702. Heating rod; 703. Push rod; 704. Telescopic rod; 8. Bottle to be inspected; 9. Transmitter; 10. Receiver. Specific embodiments

[0028] The present utility model will be further described in detail below with reference to the accompanying drawings.

[0029] Embodiment 1

[0030] Refer to Figure 1 A glass bottle internal pressure tester in this embodiment includes a test cabinet 1 and an electrical box 2 arranged on the upper part of the test cabinet 1. A fixture device 3 suitable for bottles 8 to be inspected with different sizes is arranged inside the test cabinet 1, and a pressurizing device is arranged above the fixture device 3. The pressurizing device includes a high-pressure oil cylinder 4 and a plugging head 5 pushed downward by the high-pressure oil cylinder 4. The plugging head 5 is connected with a water adding device 6. The water adding device 6 includes a pressure-resistant water pipe 601 passing through the plugging head 5 to add water to the bottle 8 to be inspected, a hydraulic cylinder 602 connected to the water inlet end of the pressure-resistant water pipe 601, a piston 603 arranged inside the hydraulic cylinder 602 for the compressed water to flow out, a push rod 604 connected to the piston 603, and a stepper motor 605 connected to the push rod 604 and controlling the movement of the push rod 604. By controlling the stepper motor 605, the piston 603 is gradually moved in the hydraulic cylinder 602, so that water flows into the bottle 8 to be inspected through the pressure-resistant water pipe 601 to apply pressure to the bottle 8 to be inspected.

[0031] During operation, the bottle 8 to be inspected is clamped on the fixture device 3, and the solenoid valve controlling the high-pressure oil cylinder 4 is pressed, so that the high-pressure oil cylinder 4 drives the plugging head 5 to move downward to plug the bottle 8 to be inspected. At the same time, the solenoid valve controlling the stepper motor 605 is pressed, and the piston 603 is driven in the hydraulic cylinder 602 through the push rod 604 to push water into the bottle 8 to be inspected. At the same time, a water inlet pipe and a water valve are arranged on the hydraulic cylinder 602 to control the water flowing into the hydraulic cylinder 602. By stabilizing the position of the piston 603, the pressure detector arranged on the pressure-resistant water pipe 601 can read the current pressure borne inside the bottle 8 to be inspected. The position of the piston 603 can be controlled by controlling the stepper motor 605 to keep the pressure for a certain period of time to detect the pressure-bearing capacity of the bottle 8 to be inspected.

[0032] Similarly, by further controlling the movement of the piston 603, the pressure of the bottle 8 to be inspected will gradually increase. When the pressure exceeds the maximum pressure that the bottle 8 to be inspected can withstand, the bottle 8 to be inspected will break, and at this time, the maximum pressure that the bottle 8 to be inspected can withstand can be detected.

[0033] Refer to Figure 3 , a packing device 7 is provided below the fixture device 3 inside the test cabinet 1. The packing device 7 includes a collection box 701 with an open top, a heating rod 702 fixedly arranged along one edge of the opening of the collection box 701, a push rod 703 provided at the other edge opposite to the heating rod 702, and a telescopic rod 704 connected to the push rod 703 and pushing the push rod 703 to contact the heating rod 702.

[0034] A sensing device for detecting the bottle 8 to be inspected is provided inside the test cabinet 1. The sensing device includes a transmitter 9 arranged on one side wall of the test cabinet 1 and a receiver 10 arranged on the other side wall of the test cabinet 1.

[0035] A plastic bag with a certain strength is pre - sleeved in the packing device 7. After the bottle 8 to be inspected is placed, it blocks the signal received by the sensing device. Press the switch device to start. When the pressure exceeds the pressure that the bottle 8 to be inspected can withstand, the bottle 8 to be inspected breaks, and the broken pieces and water flow into the packing device 7 together. The receiver 10 in the sensing device receives the signal again. After the device automatically stops, the push rod 703 of the packing device 7 moves, and one end of the plastic bag moves towards one end of the heating rod 702, so that the opening of the plastic bag is heat - sealed. It is convenient to take out and process the broken pieces, and it can prevent the operator from being cut by the glass broken pieces.

[0036] Refer to Figure 4 , the fixture device 3 includes a fixing component 301 and a clamping component. The clamping component includes at least two clamping members 302, and the cross - section of the clamping member 302 is arc - shaped.

[0037] An anti - slip pad 303 is provided at the position on the side of the clamping member 302 opposite to the bottle 8 to be inspected.

[0038] The anti - slip pad 303 is designed with rubber, and convex stripes are provided on the anti - slip pad 303 to increase the friction with the bottle 8 to be inspected.

[0039] The fixing component 301 is provided with a threaded through - hole 304. The clamping component includes an adjusting screw 305. One end of the adjusting screw 305 is connected to the clamping member 302, and the other end passes through the threaded through - hole 304 and is connected to the fixing component 301. The adjusting screw 305 can drive the clamping member 302 to move.

[0040] Refer to Figure 2, the plug 5 includes a cylindrical through-hole metal part and a multi-nested sealing sleeve fixedly connected to the bottom of the metal part. A first round hole for penetrating the pressure-resistant water pipe 601 is provided on the side wall of the metal part, and a second round hole for penetrating the pressure-resistant water pipe 601 is provided at the center of the sealing sleeve.

[0041] Refer to Figure 2 , the sealing sleeve is a columnar rubber structure, and its bottom surface is provided with at least two nested layers. The at least two nested layers are annular rubber rings arranged around the central axis of the sealing sleeve. The annular rubber rings protrude from the bottom surface, and the annular rubber rings of the at least two nested layers are closely arranged.

[0042] The pressure-resistant water pipe 601 penetrates through the metal part and the sealing sleeve. The sealing sleeve is provided with multiple layers of annular protrusions. Each annular rubber ring of the protrusions has a certain elasticity and can adapt to the bottle mouth sizes of various sizes. Because the rubber itself has a certain elasticity and leaves a certain tolerance, plus the downward pressure of the plug 5, the bottle mouth can be well sealed.

[0043] Refer to Figure 6 , the hydraulic cylinder 602 is a cylindrical metal cylinder body, including an end cover and a closed end opposite to the end cover. The end cover is provided with a water outlet for connecting the pressure-resistant water pipe 601. The output end of the stepping motor 605 is connected to a ball screw 606 through a coupling. The other end of the ball screw 606 is connected to one end of a push rod 604. The other end of the push rod 604 passes through the end cover and is connected to a piston 603 moving in the metal cylinder body.

[0044] The push rod 604 is a hollow pipe, which is connected to the ball screw 606 and can move back and forth along the screw. The screw is placed in a reduction box 607. The end cover is provided with a sealing structure, which includes a scraper, a hard oil seal and a sealing ring arranged from the end part from front to back, so as to ensure that the push rod 604 can move back and forth smoothly in the hydraulic cylinder 602 (not shown in the figure).

[0045] During operation, a pressure detector is installed on the high-pressure water pipe, and the travel distance of the screw can be adjusted through the stepping motor 605, so as to control the water volume and water pressure flowing into the bottle to be inspected 8 and perform the detection of water pressure.

[0046] Embodiment 2

[0047] Refer to Figure 5 , the difference between this embodiment and Embodiment 1 is that this embodiment provides a second fixture device 3. The fixture device 3 includes a fixing component 301 and a clamping component. The clamping component includes at least two clamping members 302, and the cross section of the clamping member 302 is arc-shaped.

[0048] An anti-slip pad 303 is provided at a position on the side of the clamping member 302 opposite to the bottle to be inspected 8.

[0049] The clamping assembly includes a clamping rod which slidably penetrates through the side wall of the fixing assembly 301. An installation seat is fixedly installed on the clamping rod. An air supply pump is provided at the top of the installation seat. The air outlet end of the air supply pump is connected to an air supply pipeline. The air supply pipeline is communicatively installed with a clamping airbag on the clamping member 302. The clamping airbag is a plurality of clamping airbags extending towards the bottle to be inspected 8. A plurality of bolt holes are formed in the clamping rod, and the clamping rod is threadedly connected to the fixing assembly 301 through the bolt holes.

[0050] Since there is still a certain distance between the clamping assembly and the bottle to be inspected 8 after the clamping rod is fixed to the fixing assembly 301 by bolts, at this time, the clamping assembly can only clamp the bottle to be inspected 8 but cannot clamp it tightly. By inflating the airbag, the airbag expands and jacks up the clamping assembly to make up for this distance, so that the clamping assembly clamps the bottle to be inspected 8 tightly. Through such a design, bottles to be inspected 8 of various sizes can be adapted. A deflation solenoid valve is provided at the bottom of the installation seat. One end of the deflation solenoid valve is connected to a deflation pipeline, and the deflation pipeline is communicatively connected to the clamping airbag. The bottle to be inspected 8 can be removed by deflating.

[0051] The above are all the preferred embodiments of the present invention, and the protection scope of the present invention is not limited thereby. Therefore, all equivalent changes made according to the structure, shape, and principle of the present invention should be covered within the protection scope of the present invention.

Claims

1. A glass bottle internal pressure testing machine, characterized in that: The invention comprises a test cabinet (1) and an electrical box (2) arranged on the upper part of the test cabinet (1); a clamp device (3) suitable for bottles (8) to be tested of different sizes is arranged inside the test cabinet (1); a pressurizing device is arranged above the clamp device (3); the pressurizing device comprises a high-pressure oil cylinder (4); a plugging head (5) pushed downward by the high-pressure oil cylinder (4); the plugging head (5) is connected to a water adding device (6); the water adding device (6) comprises a pressure-resistant water pipe (60) passing through the plugging head (5) to add water to the bottle (8) to be tested; 1), a hydraulic cylinder (602) connected to the water inlet end of a pressure-resistant water pipe (601), a piston (603) arranged in the hydraulic cylinder (602) for compressing water to flow out, a push rod (604) connected to the piston (603), and a stepping motor (605) connected to the push rod (604) and controlling the movement of the push rod (604), and the piston (603) is pushed gradually in the hydraulic cylinder (602) by the control of the stepping motor (605), so that water flows into the bottle to be inspected (8) through the pressure-resistant water pipe (601) to apply pressure to the bottle to be inspected (8).

2. A glass bottle internal pressure testing machine according to claim 1, characterized in that: A packaging device (7) is provided below the clamp device (3) inside the test cabinet (1), and the packaging device (7) includes a collection box (701) with an opening at the top, a heating rod (702) fixedly arranged along one edge of the opening of the collection box (701), a pushing rod (703) provided at the other edge opposite to the heating rod (702), and a telescopic rod (704) connected to the pushing rod (703) and pushing the pushing rod (703) to contact the heating rod (702).

3. A glass bottle internal pressure testing machine according to claim 1, characterized in that: A sensor device for detecting the bottle to be tested (8) is provided inside the test cabinet (1), and the sensor device comprises a transmitter (9) arranged on one side wall of the test cabinet (1) and a receiver (10) arranged on the other side wall of the test cabinet (1).

4. A glass bottle internal pressure testing machine according to claim 1, characterized in that: The clamp device (3) comprises a fixing assembly (301) and a clamping assembly, wherein the clamping assembly comprises at least two clamping members (302), and the cross section of the clamping member (302) is in the shape of an arc.

5. A glass bottle internal pressure testing machine according to claim 4, characterized in that: The fixing assembly (301) is provided with a threaded through hole (304), and the clamping assembly comprises an adjusting screw (305), one end of the adjusting screw (305) is connected to the clamping member (302), and the other end passes through the threaded through hole (304) and is connected to the fixing assembly (301), and the adjusting screw (305) can drive the clamping member (302) to move.

6. A glass bottle internal pressure testing machine according to claim 4, characterized in that: The clamping assembly comprises a clamping rod, the clamping rod slides through the side wall of the fixing assembly (301), a mounting seat is fixedly mounted on the clamping rod, an air supply pump is arranged on the top of the mounting seat, an air outlet end of the air supply pump is connected to an air supply pipeline, the air supply pipeline is connected to a clamping airbag mounted on the clamping member (302), the clamping airbag is a plurality of clamping airbags extending in the direction of the bottle (8) to be inspected, a plurality of bolt holes are arranged on the clamping rod, and the clamping rod is threadedly connected to the fixing assembly (301) through the bolt holes.

7. A glass bottle internal pressure testing machine according to claim 6, characterized in that: A deflation solenoid valve is provided at the bottom of the mounting seat, one end of the deflation solenoid valve is connected to a deflation pipeline, and the deflation pipeline is connected to the clamping airbag.

8. A glass bottle internal pressure testing machine according to claim 1, characterized in that: The plugging head (5) comprises a cylindrical through-hole metal part, a multi-nested sealing sleeve fixedly connected to the bottom of the metal part, a first circular hole for penetrating a pressure-resistant water pipe (601) is opened on the side wall of the metal part, and a second circular hole for penetrating the pressure-resistant water pipe (601) is opened in the center of the sealing sleeve.

9. A glass bottle internal pressure testing machine according to claim 8, characterized in that: The sealing sleeve is a columnar rubber structure, and its bottom surface is provided with at least two nested layers. The at least two nested layers are annular rubber rings arranged around the central axis of the sealing sleeve, and the annular rubber rings protrude from the bottom surface. The annular rubber rings of the at least two nested layers are tightly arranged.

10. A glass bottle internal pressure testing machine according to claim 1, characterized in that: The hydraulic cylinder (602) is a cylindrical metal cylinder body, including an end cover and a closed end opposite to the end cover. The end cover is provided with a water outlet connected to a pressure-resistant water pipe (601). The output end of the stepper motor (605) is connected to a ball screw (606) through a coupling. The other end of the ball screw (606) is connected to one end of a push rod (604). The other end of the push rod (604) passes through the end cover and is connected to a piston (603) moving in the metal cylinder body.

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