CN211717725U - Device for detecting sealing performance of upper edge and lower edge of piston of plastic pump body - Google Patents

Device for detecting sealing performance of upper edge and lower edge of piston of plastic pump body Download PDF

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Publication number
CN211717725U
CN211717725U CN201921648830.XU CN201921648830U CN211717725U CN 211717725 U CN211717725 U CN 211717725U CN 201921648830 U CN201921648830 U CN 201921648830U CN 211717725 U CN211717725 U CN 211717725U
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China
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pump body
plastic pump
piston
tightness
subassembly
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CN201921648830.XU
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Chinese (zh)
Inventor
郑紫阳
王九尊
刘维波
高云峰
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Han s Laser Technology Industry Group Co Ltd
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Han s Laser Technology Industry Group Co Ltd
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Abstract

The embodiment of the application belongs to the technical field of tightness detection equipment, and relates to a tightness detection device for an upper edge and a lower edge of a piston of a plastic pump body. The technical scheme provided by the application comprises a machine table, a vacuum generating device, a loop line carrier, a pressing assembly and a plugging assembly; compress tightly the subassembly and the shutoff subassembly is located on the board, the loop carrier is used for bearing the weight of the plastic pump body, compress tightly the subassembly pressfitting on the plastic pump body, the shutoff subassembly shutoff is kept away from in the loop carrier the opening part of compressing tightly subassembly one end, the loop carrier inboard forms an airtight space with the plastic pump body outside, vacuum generator and shutoff subassembly are connected with the gas circuit, the switching of vacuum generator control gas circuit and change the malleation into the vacuum generator of negative pressure to detect along the leakproofness from top to bottom to the plastic pump body piston. The pressure force of the plugging component on the loop carrier is increased, the sealing effect is improved to a greater extent, the detection precision is greatly improved, and the quality of the product is better guaranteed.

Description

Device for detecting sealing performance of upper edge and lower edge of piston of plastic pump body
Technical Field
The application relates to the technical field of tightness detection equipment, in particular to a device for detecting the tightness of the upper edge and the lower edge of a piston of a plastic pump body.
Background
After the plastic pump body is assembled, the upper edge and the lower edge of a piston of the plastic pump body need to be tested for tightness so as to prevent liquid from flowing into the pump body; at present, the common detection is to place the product in a detection instrument by the manual work for testing, the time spent by the mode is long, manual selective inspection can only be carried out, the detection requirement during large-scale production can not be met, when detection is carried out, the plastic pump body in the circular line jig needs to be pressed and sealed, the plastic pump body and the jig form a sealed environment, detection is carried out again, in the actual operation process, the pressing and sealing effect of the plastic pump body is difficult to guarantee, the sealing performance between the product and the jig is difficult to guarantee, and therefore the detection precision is greatly influenced.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a follow leakproofness detection device from top to bottom at the plastic pump body piston, realize the batch detection of leakproofness, realize automatic detection, detection efficiency is high, has practiced thrift the manpower to increased the pressure resultant force of shutoff subassembly to the loop line carrier, promoted sealed effect to a great extent, improved the precision that detects greatly, made the quality of product obtain better assurance.
In order to solve the above-mentioned problem, the embodiment of the present invention provides the following technical solutions:
a device for detecting the tightness of the upper edge and the lower edge of a piston of a plastic pump body,
comprises a machine table, a vacuum generating device, a loop line carrier, a pressing assembly and a plugging assembly;
compress tightly the subassembly and the shutoff subassembly is located on the board, the loop carrier is used for bearing the weight of the plastic pump body, compress tightly the subassembly pressfitting on the plastic pump body, the shutoff subassembly shutoff is kept away from in the loop carrier the opening part of compressing tightly subassembly one end, the loop carrier inboard forms an airtight space with the plastic pump body outside, vacuum generator and shutoff subassembly are connected with the gas circuit, the switching of vacuum generator control gas circuit and change the malleation into the vacuum generator of negative pressure to detect along the leakproofness from top to bottom to the plastic pump body piston.
Further, the vacuum generating device comprises a control valve, a vacuum generator and a one-way valve, wherein the control valve is a two-way valve, and the control valve, the vacuum generator, the one-way valve and the plugging component are sequentially connected with the air path.
Further, the vacuum generating device is an integrated vacuum generator.
Furthermore, the plugging assembly comprises a first driving piece and a plug, wherein the plug is driven by the first driving piece and is plugged at an opening of one end, far away from the pressing assembly, of the loop line carrier.
Furthermore, the compressing assembly comprises a second driving piece and a pressure head, and the pressure head is driven by the second driving piece and is pressed on the plastic pump body.
Further, the first driving piece and the second driving piece are air cylinders, electric cylinders or motor screws.
Furthermore, the plastic pump body comprises a piston and a cup body, the piston comprises an upper edge and a lower edge which are connected in the cup body in a sliding mode, and a through hole is formed in the side wall, close to the piston, of the cup body.
Furthermore, a digital display meter is arranged on the machine table.
Furthermore, a pressure reducing valve connected with the air circuit and the control valve is arranged on the machine table.
Furthermore, a three-way pipe is arranged on the one-way valve, one end of the three-way pipe is connected with the plug, and the other end of the three-way pipe is connected with the digital display meter.
Compared with the prior art, the embodiment of the utility model provides a mainly have following beneficial effect:
the utility model provides a follow leakproofness detection device about plastic pump body piston, realize the batch detection of leakproofness, realize automatic detection, detection efficiency is high, the manpower has been practiced thrift, because the airtight space that the loop carrier inboard formed with the plastic pump body outside produces the negative pressure, the pressfitting power of shutoff subassembly to the loop carrier has been increased, sealing effect has been promoted to a great extent, the precision that detects has been improved greatly, make the quality of product obtain better assurance, realize the automated inspection of product when large-scale production, and guarantee that the product leakproofness has higher level after detecting qualified.
Drawings
In order to illustrate the solution of the present invention more clearly, the drawings needed for describing the embodiments will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.
Fig. 1 is a schematic view of the overall structure of a device for detecting the sealing performance of the upper and lower edges of a piston of a plastic pump body according to an embodiment of the present invention;
FIG. 2 is a front view of the device for detecting the sealing performance of the upper and lower edges of the piston of the plastic pump body according to the embodiment of the present invention;
FIG. 3 is a rear view of the device for detecting the sealing performance of the upper and lower edges of the piston of the plastic pump body according to the embodiment of the present invention;
fig. 4 is a top view of the device for detecting the sealing performance of the upper and lower edges of the piston of the plastic pump body according to the embodiment of the present invention;
FIG. 5 is a schematic structural view of a plastic pump body according to an embodiment of the present invention;
fig. 6 is an exploded view of the plastic pump body according to the embodiment of the present invention.
Description of reference numerals:
110. a plug; 120. a machine platform; 130. a pressure head; 140. a vacuum generator; 150. a one-way valve; 160. a digital display meter; 170. a pressure reducing valve; 180. a control valve; 190. a plastic pump body; 200. a piston; 210. a cup body; 220. a first driving member; 230. a second driving member; 240. a through hole; 250. a loop carrier; 260. an upper edge; 270. and (4) a lower edge.
Detailed Description
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The terms "including" and "having," and any variations thereof, in the description and claims of the present invention and the description of the above figures are intended to cover non-exclusive inclusions. The terms "first," "second," and the like in the description and in the claims, or in the drawings, are used for distinguishing between different objects and not necessarily for describing a particular sequential or chronological order.
Reference herein to "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment can be included in at least one embodiment of the invention. The appearances of the phrase in various places in the specification are not necessarily all referring to the same embodiment, nor are separate or alternative embodiments mutually exclusive of other embodiments. It is explicitly and implicitly understood by one skilled in the art that the embodiments described herein can be combined with other embodiments.
In order to make the technical solution of the present invention better understood by those skilled in the art, the technical solution of the embodiments of the present invention will be clearly and completely described below with reference to the related drawings.
Example one
A device for detecting the tightness of the upper and lower edges of a piston of a plastic pump body is disclosed, as shown in figures 1 to 6,
comprises a machine table 120, a vacuum generating device, a loop line carrier 250, a pressing component and a plugging component;
the pressing assembly and the plugging assembly are arranged on the machine table 120, the loop carrier 250 is used for bearing the plastic pump body 190, the pressing assembly is pressed on the plastic pump body 190, the plugging assembly is plugged at an opening of one end of the pressing assembly, which is far away from the loop carrier 250, an airtight space is formed between the inner side of the loop carrier 250 and the outer side of the plastic pump body 190, the vacuum generating device and the plugging assembly are connected with a gas circuit, the vacuum generating device controls the opening and closing of the gas circuit and changes positive pressure into a vacuum generator 140 with negative pressure, so that the tightness of the upper edge and the lower edge of a piston of the plastic pump body is detected.
When the tightness detection is carried out, the pressing component is pressed on the plastic pump body 190, the plugging component is pressed on the opening of the loop line carrier 250, the inner side of the loop line carrier 250 and the outer side of the plastic pump body 190 form a closed space, the vacuum generating device and the plugging component are connected with the gas circuit, the vacuum generating device controls the gas circuit to be opened and starts to vacuumize, the closed space formed by the inner side of the loop line carrier 250 and the outer side of the plastic pump body 190 generates negative pressure, the vacuum generating device controls the gas circuit to be closed after vacuumization for a period of time, if the detected negative pressure value is lower than a set value, the upper edge and the lower edge of the piston of the plastic pump body are qualified in tightness, thereby batch detection of the tightness is realized, automatic detection is realized, the detection efficiency is high, and manpower is saved, the plugging component is pressed at the opening of the loop carrier 250, so that a closed space is formed between the inner side of the loop carrier 250 and the outer side of the plastic pump body 190, and then the detection is performed in a mode of vacuumizing from the inner side of the loop carrier 250, and because the closed space formed between the inner side of the loop carrier 250 and the outer side of the plastic pump body 190 generates negative pressure, the pressing force of the plugging component on the loop carrier 250 is increased, the sealing effect is improved to a greater extent, the detection precision is greatly improved, the quality of a product is better guaranteed, the automatic detection of the product in large-scale production is realized, and the sealing performance of the product after the product is qualified in detection is guaranteed to have a higher level.
The loop carrier 250 is conveyed to the detection position of the machine table 120 by a loop, the loop is an automatic loop, the loop carrier 250 carrying the plastic pump body 190 is conveyed to the detection position of the machine table 120 by the loop during detection, after the detection is finished, the loop carrier 250 is taken back, and then the next round of detection of the plastic pump body 190 is carried out, so that the automatic detection of the sealing performance of the plastic pump body 190 is realized.
As shown in fig. 1 to 4, the compressing assembly and the plugging assembly are arranged in multiple groups. The embodiment of the utility model provides an in, compress tightly subassembly and shutoff subassembly and set up to four groups, can realize the detection to four group's plastic pump body 190 simultaneously.
The vacuum generating device comprises a control valve 180, a vacuum generator 140 and a one-way valve 150, wherein the control valve 180 is a two-way valve, and the control valve 180, the vacuum generator 140, the one-way valve 150 and the plugging component are sequentially connected with an air path. The vacuum generator 140 is connected to the check valve 150, and since the vacuum generator 140 itself is not a closed space, in order to prevent the two-way valve from being closed, the positive pressure flows back from the vacuum generator 140, and the pressure is maintained by the check valve 150.
The plugging component comprises a first driving member 220 and a plug 110, wherein the plug 110 is driven by the first driving member 220 to be plugged at an opening of one end of the loop line carrier 250, which is far away from the pressing component.
The pressing assembly includes a second driving member 230 and a pressing head 130, and the pressing head 130 is driven by the second driving member 230 and pressed on the plastic pump body 190.
The first driving member 220 and the second driving member 230 are cylinders, electric cylinders, or motor screws.
The embodiment of the utility model provides an in, first driving piece 220 and second driving piece 230 are the cylinder, through cylinder drive pressure head 130 pressfitting on the plastics pump body 190, make the product better fixed, cylinder drive end cap 110 shutoff in the opening part of loop line carrier 250 makes the loop line carrier 250 inboard form an airtight space with the plastics pump body 190 outside, because airtight space produces the negative pressure, has increased the cylinder to the pressfitting power of loop line carrier 250, has promoted sealed effect to a great extent.
The digital display meter 160 is arranged on the machine table 120, and after the vacuum generator 140 is vacuumized, the air pressure on the side of the plug 110 is displayed on the digital display meter 160.
The machine table 120 is provided with a pressure reducing valve 170 connected with the air path and the control valve 180, the pressure reducing valve 170 is connected with the air path and the control valve 180 through an air pipe, and compressed air in the air pipe is connected to the control valve 180 after the pressure of the compressed air is changed through the pressure reducing valve 170.
A three-way pipe is arranged on the one-way valve 150, one end of the three-way pipe is connected with the plug 110, and the other end of the three-way pipe is connected with the digital display meter 160.
As shown in fig. 5 and 6, the plastic pump body 190 includes a piston 200 and a cup 210, the piston 200 includes an upper edge 260 and a lower edge slidably connected to the inside of the cup 210, and a through hole 240 is formed on a side wall of the cup 210 close to the piston 200.
When the tightness of the plastic pump body 190 is detected, the cup body 210 is provided with the through hole 240, so that air cannot flow out from the sealing positions of the upper edge 260 and the lower edge 270 of the piston 200 through the through hole 240 under the current state of the plastic pump body 190 to be tested, because the upper part of the piston 200 is communicated with the atmosphere, if the tightness of the lower edge 270 of the piston 200 is poor, when vacuum pumping is performed, external air flows into the cup body 210 from the upper part of the piston 200 and then flows into the through hole 240 from the sealing position of the lower edge 270 of the piston 200, so that the air enters a closed space formed by the outer side of the plastic pump body 190 and the inner side of the ring line carrier 250, and at the moment; if the sealing performance of the upper edge 260 of the piston 200 is poor, outside air can flow into the small hole from the sealing position of the upper edge of the piston 200 and enter a closed space formed by the outer side of the plastic pump body 190 and the inner side of the loop carrier 250, and at the moment, the digital display meter 160 still displays that the product is unqualified.
When the tightness detection is carried out, the cylinder driving pressure head 130 in the compressing assembly is pressed on the plastic pump body 190, the cylinder in the plugging assembly is plugged at the opening of the loop line carrier 250, so that a closed space is formed between the inner side of the loop line carrier 250 and the outer side of the plastic pump body 190, the control valve 180 controls the gas circuit to be opened, the vacuum generator 140 starts to vacuumize, so that the closed space formed between the inner side of the loop line carrier 250 and the outer side of the plastic pump body 190 generates negative pressure, the control valve 180 controls the gas circuit to be closed after the vacuumization is carried out for a period of time, if the detected negative pressure value is lower than the set value of the digital display meter 160, the tightness of the upper edge and the lower edge of the piston of the plastic pump body is qualified, thereby the batch detection of the tightness is realized, the automatic detection is realized, the detection efficiency is high, the manpower is saved, because the closed space formed, the sealing effect is improved to a greater extent, the detection precision is greatly improved, the quality of the product is better guaranteed, automatic detection of the product in large-scale production is realized, and the sealing performance of the product after qualified detection is guaranteed to have a higher level.
Example two
The device for detecting the tightness of the upper edge and the lower edge of the piston of the plastic pump body is different from the device in the first embodiment in that the vacuum generating device is an integrated vacuum generator, and the integrated vacuum generator can control the opening and closing of an air passage and meet the vacuum pumping function.
It is to be understood that the above-described embodiments are only some of the embodiments of the present invention, and not all of the embodiments, and the preferred embodiments of the present invention are shown in the drawings, but not limited to the scope of the present invention. The present invention may be embodied in many different forms and, on the contrary, these embodiments are provided so that this disclosure will be thorough and complete. Although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that various changes in the embodiments and modifications can be made, and equivalents may be substituted for elements thereof. All utilize the equivalent structure that the content of the utility model discloses a specification and attached drawing was done, direct or indirect application is in other relevant technical field, all is in the same way the utility model discloses within the patent protection scope.

Claims (10)

1. A device for detecting the tightness of the upper edge and the lower edge of a piston of a plastic pump body is characterized in that,
comprises a machine table, a vacuum generating device, a loop line carrier, a pressing assembly and a plugging assembly;
compress tightly the subassembly and the shutoff subassembly is located on the board, the loop carrier is used for bearing the weight of the plastic pump body, compress tightly the subassembly pressfitting on the plastic pump body, the shutoff subassembly shutoff is kept away from in the loop carrier the opening part of compressing tightly subassembly one end, the loop carrier inboard forms an airtight space with the plastic pump body outside, vacuum generator and shutoff subassembly are connected with the gas circuit, the switching of vacuum generator control gas circuit and change the malleation into the vacuum generator of negative pressure to detect along the leakproofness from top to bottom to the plastic pump body piston.
2. The device for detecting the tightness of the upper and lower edges of a piston of a plastic pump body according to claim 1,
the vacuum generating device comprises a control valve, a vacuum generator and a one-way valve, wherein the control valve is a two-way valve, and the control valve, the vacuum generator, the one-way valve and the plugging component are sequentially connected with an air path.
3. The device for detecting the tightness of the upper and lower edges of a piston of a plastic pump body according to claim 1,
the vacuum generating device is an integrated vacuum generator.
4. The device for detecting the tightness of the upper and lower edges of the piston of the plastic pump body according to claim 2,
the plugging assembly comprises a first driving piece and a plug, the plug is driven by the first driving piece to plug an opening at one end, far away from the pressing assembly, of the loop line carrier.
5. The device for detecting the tightness of the upper and lower edges of the piston of the plastic pump body according to claim 4,
the pressing assembly comprises a second driving piece and a pressing head, and the pressing head is driven by the second driving piece and pressed on the plastic pump body.
6. The device for detecting the tightness of the upper and lower edges of the piston of the plastic pump body according to claim 5,
the first driving piece and the second driving piece are air cylinders, electric cylinders or motor lead screws.
7. The device for detecting the tightness of the upper and lower edges of a piston of a plastic pump body according to claim 1,
the plastic pump body comprises a piston and a cup body, the piston comprises an upper edge and a lower edge which are connected in the cup body in a sliding mode, and a through hole is formed in the side wall, close to the piston, of the cup body.
8. The device for detecting the tightness of the upper and lower edges of the piston of the plastic pump body according to claim 4,
and a digital display meter is arranged on the machine table.
9. The device for detecting the tightness of the upper and lower edges of a piston of a plastic pump body according to claim 8,
and the machine table is provided with a pressure reducing valve connected with the gas circuit and the control valve.
10. The device for detecting the tightness of the upper and lower edges of a piston of a plastic pump body according to claim 8,
and a three-way pipe is arranged on the one-way valve, one end of the three-way pipe is connected with the plug, and the other end of the three-way pipe is connected with the digital display meter.
CN201921648830.XU 2019-09-29 2019-09-29 Device for detecting sealing performance of upper edge and lower edge of piston of plastic pump body Active CN211717725U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201921648830.XU CN211717725U (en) 2019-09-29 2019-09-29 Device for detecting sealing performance of upper edge and lower edge of piston of plastic pump body

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201921648830.XU CN211717725U (en) 2019-09-29 2019-09-29 Device for detecting sealing performance of upper edge and lower edge of piston of plastic pump body

Publications (1)

Publication Number Publication Date
CN211717725U true CN211717725U (en) 2020-10-20

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Application Number Title Priority Date Filing Date
CN201921648830.XU Active CN211717725U (en) 2019-09-29 2019-09-29 Device for detecting sealing performance of upper edge and lower edge of piston of plastic pump body

Country Status (1)

Country Link
CN (1) CN211717725U (en)

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