CN215985063U

CN215985063U - Air tightness detection device for injection molding

Info

Publication number: CN215985063U
Application number: CN202122357059.4U
Authority: CN
Inventors: 肖云; 王远全; 陶飞
Original assignee: Qingdao Haizhenwei Plastic Products Co ltd
Current assignee: Qingdao Haizhenwei Plastic Products Co ltd
Priority date: 2021-09-28
Filing date: 2021-09-28
Publication date: 2022-03-08
Anticipated expiration: 2031-09-28

Abstract

The utility model relates to the technical field of injection molding part detection devices, in particular to an air tightness detection device for injection molding parts, which comprises a workbench, wherein a concave seat is welded at the upper end of the workbench, telescopic rods are symmetrically embedded in the side surface of the concave seat in a left-right mode, a walking plate is welded at the end part of the telescopic rod, a sealing gasket is bonded on the side surface of the walking plate, a pair of sliding rods are symmetrically welded on the side, far away from the sealing gasket, of the walking plate in a left-right mode, and the sliding rods are connected with the concave seat in a sliding mode: the air tightness detection device is reasonable in structural design, simple and convenient to operate, and capable of quickly and effectively detecting the air tightness of the injection molding piece, so that the working efficiency is greatly improved; when different products are required to be detected, the pull rod is pulled outwards, the positioning mechanism is enabled to loosen the fixation of the extrusion block, the sealing mechanism can be taken out of the fixing seat and replaced with a sealing mechanism matched with an injection molding piece to be detected, the operation is simple and convenient, and the detection cost is greatly reduced.

Description

Air tightness detection device for injection molding

Technical Field

The utility model relates to the technical field of injection molding part detection devices, in particular to an air tightness detection device for injection molding parts.

Background

The injection molding part refers to various injection molding products produced by an injection molding machine, and is commonly called injection molding parts, and comprises various packages, parts and the like. Is mainly prepared from polyethylene or polypropylene and various organic solvents. After the injection molding is finished, in order to ensure the qualification rate of the product delivered from the factory, the air tightness detection is required. The air tightness detection equipment has various types, relates to a wide range, and generally has air tightness detection devices for various articles such as plastic bottles, tanks, medical injectors, municipal water supply and gas supply pipelines, traffic monitoring cameras, mobile phones and the like on the market at present. However, most of the existing air tightness detection devices are complex in structure, high in cost, complex in actual use and operation process, complex in detection method, incapable of simply and effectively detecting air tightness of injection-molded parts and low in detection efficiency. And the application scope of gas tightness detection device is low, and some gas tightness detection device can only detect to the injection molding of a certain product model, need change equipment when needing to detect different products, detect with high costs.

Therefore, a need exists for a gas tightness detection device for injection molded parts that solves the above problems.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide an air tightness detection device for injection molding parts, which aims to solve the problems in the background technology.

In order to achieve the purpose, the utility model provides the following technical scheme: an air tightness detection device for injection molding parts comprises a workbench, wherein a concave seat is welded at the upper end of the workbench, telescopic rods are symmetrically embedded in the side surfaces of the concave seat in the left-right direction, a walking plate is welded at the end part of each telescopic rod, a sealing gasket is bonded on the side surface of the moving plate, a pair of sliding rods are symmetrically welded on the side of the moving plate far away from the sealing gasket in a left-right mode, the sliding rod is connected with the concave seat in a sliding way, the side surface of the walking plate is inserted with a vent pipe in a penetrating way, the upper end of the vent pipe is connected with a pressure gauge in a threaded way, the upper end of the workbench is welded with a fixed seat, the side surface of the fixed seat is inserted with an air inlet pipe, the end part of the air inlet pipe is sleeved with a sealing ring, the left side and the right side of the fixed seat are symmetrically provided with positioning mechanisms, the side of the fixing seat is inserted with a sealing mechanism, and an injection molding part main body is arranged between a limiting plate and a sealing gasket in the sealing mechanism.

Preferably, the side surface of the concave seat is bilaterally symmetrical and provided with a through hole in a penetrating manner, and the sliding rod is connected with the through hole in a sliding manner.

Preferably, the walking plate is in sliding fit with the workbench, an inflator is mounted at the upper end of the walking plate, and the inflator is connected with the vent pipe through a connecting pipe.

Preferably, the positioning mechanism comprises: the positioning device comprises a pull rod, positioning springs and positioning blocks, wherein the pull rod is symmetrically inserted into the left side and the right side of the fixing seat, the positioning springs are sleeved on the pull rod, and the positioning blocks are welded at one end of the pull rod.

Preferably, the sealing mechanism includes: the extrusion device comprises an extrusion block, positioning grooves, limiting plates and a sealing air bag, wherein the extrusion block is inserted into the side face of a fixing seat, the positioning grooves are symmetrically formed in the left side and the right side of the extrusion block, the limiting plates are welded on the outer sides of the extrusion block, the sealing air bag is installed on the extrusion block, and the air inlet end of the sealing air bag is inserted into an air inlet pipe.

Preferably, the positioning block is connected with the fixing seat in a sliding mode, and the positioning block is connected with the positioning groove in a clamping mode.

Preferably, the extrusion block is provided with a mounting groove, the sealing air bag is embedded in the mounting groove, one end of the extrusion block is inserted into the injection molding part main body, and the sealing air bag is in contact with the inner cavity of the injection molding part main body.

Compared with the prior art, the utility model has the beneficial effects that: the air tightness detection device is reasonable in structural design, simple and convenient to operate, and capable of quickly and effectively detecting the air tightness of the injection molding piece, so that the working efficiency is greatly improved; when different products are required to be detected, the pull rod is pulled outwards, the positioning mechanism is enabled to loosen the fixation of the extrusion block, the sealing mechanism can be taken out of the fixing seat and replaced with a sealing mechanism matched with an injection molding piece to be detected, the operation is simple and convenient, and the detection cost is greatly reduced.

Drawings

FIG. 1 is a schematic structural diagram of an air tightness detecting device according to the present invention;

FIG. 2 is a schematic structural view of an extrusion mechanism and a pressure detection mechanism according to the present invention;

FIG. 3 is a schematic cross-sectional view of the structure of the air tightness detecting device of the present invention;

FIG. 4 is an enlarged view of the structure at A in FIG. 3;

fig. 5 is a schematic structural diagram of the sealing mechanism of the present invention.

In the figure: 1. a work table; 2. a concave seat; 21. a telescopic rod; 3. a walking plate; 31. a gasket; 32. a slide bar; 33. a breather pipe; 34. a pressure gauge; 4. a fixed seat; 41. an air inlet pipe; 42. a seal ring; 5. a pull rod; 51. a positioning spring; 52. positioning blocks; 6. extruding the block; 61. positioning a groove; 62. a limiting plate; 7. sealing the air bag; 8. the injection molding main part.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1 to 5, the present invention provides a technical solution: the utility model provides a gas tightness detection device for injection molding, comprises a workbench 1, the upper end welding of workstation 1 has spill seat 2, the side bilateral symmetry embedding of spill seat 2 has telescopic link 21, the tip welding of telescopic link 21 has walk movable plate 3, the side of walking plate 3 bonds and has sealed the pad 31, it has a pair of slide bar 32 to walk the one side bilateral symmetry welding that sealed pad 31 was kept away from to plate 3,

slide bar

32 and 2 sliding connection of spill seat, the side bilateral symmetry of spill seat 2 runs through and has seted up the through-hole, slide bar 32 and through-hole sliding connection, it slides along workstation 1 to promote to walk movable plate 3 through telescopic link 21, it drives slide bar 32 and slides along spill seat 2 to walk movable plate 3, thereby carry out the assistance-guided motion to walking plate 3.

The side of the walking plate 3 is inserted with a vent pipe 33 in a penetrating mode, the upper end of the vent pipe 33 is connected with a pressure gauge 34 in a threaded mode, the walking plate 3 is in sliding fit with the workbench 1, an inflator is installed at the upper end of the walking plate 3 and is connected with the vent pipe 33 through a connecting pipe, and the reading of the pressure gauge 34 is continuously observed, so that the air tightness of the injection molding main body 8 can be visually displayed, when the reading of the pressure gauge 34 is unchanged, namely the air tightness of the injection molding main body 8 is good, and when the reading of the pressure gauge 34 is smaller, namely the air tightness of the injection molding main body 8 is poor.

The welding of the upper end of workstation 1 has fixing base 4, and the side of fixing base 4 is run through to be pegged graft and is had intake pipe 41, and the tip cover of intake pipe 41 is equipped with sealing washer 42, and the left and right sides symmetry of fixing base 4 is provided with positioning mechanism, and positioning mechanism is including: pull rod 5, positioning spring 51 and locating piece 52, the left and right sides symmetry of fixing base 4 is pegged graft and is had pull rod 5, the cover is equipped with positioning spring 51 on the pull rod 5, positioning block 52 has been welded to the one end of pull rod 5, the movable groove has been seted up to the left and right sides symmetry of fixing base 4, positioning block 52 and movable groove sliding connection, positioning spring 51's one end is pegged graft with fixing base 4, positioning spring 51's the other end is pegged graft with positioning block 52, positioning spring 51 applys for elasticity to positioning block 52.

The side of fixing base 4 is pegged graft and is had sealing mechanism, sealing mechanism including: extrusion piece 6, constant head tank 61, limiting plate 62 and air-tight bag 7, it has extrusion piece 6 to peg graft in the side of fixing base 4, constant head tank 61 has been seted up to extrusion piece 6's left and right sides symmetry, the outside welding of extrusion piece 6 has limiting plate 62, locating

piece

52 and 4 sliding connection of fixing base, locating piece 52 and constant head tank 61 joint, make fixed connection between extrusion piece 6 and the fixing base 4 through positioning mechanism, the side of fixing base 4 is seted up flutedly, extrusion piece 6 is pegged graft with the recess.

Install sealed gasbag 7 on the extrusion piece 6, sealed gasbag 7's inlet end is pegged graft with intake pipe 41, be provided with injection molding main part 8 between limiting plate 62 among the sealing mechanism and the sealed pad 31, the elastic pad that bonds in limiting plate 62's side, the mounting groove has been seted up on the extrusion piece 6, sealed gasbag 7 imbeds in the mounting groove, the one end of extrusion piece 6 is pegged graft in injection molding main part 8, sealed gasbag 7 contacts with the inner chamber of injection molding main part 8, the one end that sealed gasbag 7 was kept away from to intake pipe 41 is connected with the inflator through the coupling, the inflator is installed on workstation 1, one side of injection molding main part 8 closely laminates with sealed pad 31, the opposite side and the elastic pad extrusion laminating of injection molding main part 8, sealed pad 31 and the elastic pad through the setting seal up seals injection molding main part 8.

The working principle is as follows: the air tightness detection device is reasonable in structural design, simple and convenient to operate, and capable of quickly and effectively detecting the air tightness of the injection molding piece, so that the working efficiency is greatly improved; during detection, firstly, the injection molding main body 8 is sleeved on the extrusion block 6, the walking plate 3 is pushed by the telescopic rod 21 to slide along the workbench 1, the walking plate 3 drives the sealing gasket 31 to approach the injection molding main body 8, the injection molding main body 8 is clamped and fixed by the walking plate 3 and the limiting plate 62, the injection molding main body 8 is sealed by the arranged sealing gasket 31 and the elastic cushion, the sealing air bag 7 is filled with air by the air inlet pipe 41, the sealing air bag 7 is tightly attached to the injection molding main body 8, so that the injection molding main body 8 is hermetically connected with the extrusion block 6, the air pipe 33 is filled with air by the inflator, the air enters the injection molding main body 8 through the air pipe 33, the pressure in the injection molding main body 8 is increased, when the pressure in the injection molding main body 8 reaches a certain value, the inflation is stopped, and the reading of the pressure gauge 34 is continuously observed, so that the air tightness of the injection molding main body 8 can be visually displayed, when the reading of the pressure gauge 34 is unchanged, namely the air tightness of the injection molding main body 8 is good, when the reading of the pressure gauge 34 is reduced, namely the air tightness of the injection molding main body 8 is poor. When different products are required to be detected, the pull rod 5 is pulled outwards, the pull rod 5 drives the positioning block 52 to move out of the positioning groove 61, the positioning mechanism is enabled to loosen the fixation of the extrusion block 6, the sealing mechanism can be taken out of the fixing seat 4 and replaced with a sealing mechanism matched with an injection molding piece to be detected, the operation is simple and convenient, and the detection cost is greatly reduced.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a gas tightness detection device for injection molding, includes workstation (1), its characterized in that: the welding of the upper end of workstation (1) has spill seat (2), the side bilateral symmetry embedding of spill seat (2) has telescopic link (21), the tip welding of telescopic link (21) has moves movable plate (3), the side of moving plate (3) bonds and has sealed pad (31), the welding of one side bilateral symmetry that sealed pad (31) was kept away from to moving plate (3) has a pair of slide bar (32), slide bar (32) and spill seat (2) sliding connection, the side of moving plate (3) is run through and is pegged graft and have breather pipe (33), the upper end threaded connection of breather pipe (33) has manometer (34), the welding of the upper end of workstation (1) has fixing base (4), the side of fixing base (4) is run through and is pegged graft and has intake pipe (41), the tip cover of intake pipe (41) is equipped with sealing washer (42), the left and right sides symmetry of fixing base (4) is provided with positioning mechanism, a sealing mechanism is inserted into the side face of the fixed seat (4), and an injection molding part main body (8) is arranged between a limiting plate (62) and a sealing gasket (31) in the sealing mechanism.

2. The airtightness detection apparatus for injection molded parts according to claim 1, wherein: the side surface of the concave seat (2) is bilaterally symmetrical and provided with a through hole in a penetrating manner, and the sliding rod (32) is connected with the through hole in a sliding manner.

3. The airtightness detection apparatus for injection molded parts according to claim 1, wherein: walk movable plate (3) and workstation (1) sliding fit, the upper end of walking movable plate (3) is installed the inflator, and the inflator passes through the connecting pipe and is connected with breather pipe (33).

4. The airtightness detection apparatus for injection molded parts according to claim 1, wherein: the positioning mechanism comprises: the novel fixing device comprises a pull rod (5), a positioning spring (51) and a positioning block (52), the pull rod (5) is symmetrically inserted into the left side and the right side of the fixing seat (4), the positioning spring (51) is sleeved on the pull rod (5), and the positioning block (52) is welded at one end of the pull rod (5).

5. The airtightness detection apparatus for injection molded parts according to claim 4, wherein: the sealing mechanism comprises: extrusion piece (6), constant head tank (61), limiting plate (62) and air-tight bag (7), it has extrusion piece (6) to peg graft in the side of fixing base (4), constant head tank (61) have been seted up to the left and right sides symmetry of extrusion piece (6), the outside welding of extrusion piece (6) has limiting plate (62), install air-tight bag (7) on extrusion piece (6), the inlet end and intake pipe (41) of air-tight bag (7) are pegged graft.

6. The airtightness detection apparatus for injection molded parts according to claim 5, wherein: locating piece (52) and fixing base (4) sliding connection, locating piece (52) and constant head tank (61) joint.

7. The airtightness detection apparatus for injection molded parts according to claim 5, wherein: the extrusion piece (6) is provided with a mounting groove, the sealing air bag (7) is embedded in the mounting groove, one end of the extrusion piece (6) is inserted into the injection molding piece main body (8), and the sealing air bag (7) is in contact with the inner cavity of the injection molding piece main body (8).