CN114653537B - Continuous glue-discharging type plunger valve - Google Patents
Continuous glue-discharging type plunger valve Download PDFInfo
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- CN114653537B CN114653537B CN202210280167.2A CN202210280167A CN114653537B CN 114653537 B CN114653537 B CN 114653537B CN 202210280167 A CN202210280167 A CN 202210280167A CN 114653537 B CN114653537 B CN 114653537B
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05C—APPARATUS FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05C5/00—Apparatus in which liquid or other fluent material is projected, poured or allowed to flow on to the surface of the work
- B05C5/02—Apparatus in which liquid or other fluent material is projected, poured or allowed to flow on to the surface of the work the liquid or other fluent material being discharged through an outlet orifice by pressure, e.g. from an outlet device in contact or almost in contact, with the work
- B05C5/0225—Apparatus in which liquid or other fluent material is projected, poured or allowed to flow on to the surface of the work the liquid or other fluent material being discharged through an outlet orifice by pressure, e.g. from an outlet device in contact or almost in contact, with the work characterised by flow controlling means, e.g. valves, located proximate the outlet
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Abstract
The invention provides a continuous glue-discharging type plunger valve which comprises a driving mechanism and a glue-discharging mechanism, wherein the glue-discharging mechanism comprises a piston cylinder with a piston cavity, a piston and a piston rod, and the piston divides the piston cavity into a first cavity and a second cavity; the piston is provided with a mounting cavity, a central through hole for communicating the mounting cavity with the first cavity and an eccentric through hole for communicating the mounting cavity with the second cavity; the piston rod penetrates through the first cavity and the central through hole, the front end of the piston rod radially extends outwards to form a limiting boss, the piston rod can be limited in the mounting cavity in a forward and backward movable mode through the limiting boss, and the rear end of the piston rod is located outside the piston cylinder; the piston rod moves backwards to enable the limiting boss to be in sealing and abutting connection with the central through hole, and the glue inlet channel is communicated with the eccentric through hole; the piston rod moves forwards to make the front end surface of the piston rod be in sealing fit with the inner wall of the mounting cavity, and the central through hole is communicated with the eccentric through hole. So set up, can realize going out glue in succession.
Description
Technical Field
The invention relates to the field of glue supply equipment, in particular to a continuous glue discharging type plunger valve.
Background
The existing plunger valves for supplying glue mostly have the following disadvantages: the glue feeding is frequently and continuously carried out, but the glue feeding and the glue discharging can not be carried out simultaneously, so that the continuous glue dispensing can not be realized, and the production efficiency is low.
Disclosure of Invention
Therefore, the invention provides a continuous glue-discharging type plunger valve for solving the problems.
In order to achieve the purpose, the technical scheme provided by the invention is as follows:
a continuous glue-discharging type plunger valve comprises a driving mechanism and a glue-discharging mechanism, wherein the glue-discharging mechanism comprises a piston cylinder, a piston and a piston rod, the piston is slidably assembled in a piston cavity of the piston cylinder so as to divide the piston cavity into a first cavity close to the rear end of the piston cylinder and a second cavity close to the front end of the piston cylinder; a glue outlet channel communicated with the first cavity is formed in the piston cylinder; the piston is provided with a mounting cavity, a central through hole for communicating the mounting cavity with the first cavity and an eccentric through hole for communicating the mounting cavity with the second cavity; the piston rod penetrates through the first cavity and the central through hole, the front end of the piston rod radially extends outwards to form a limiting boss, the piston rod can be limited in the mounting cavity in a forward and backward movable mode through the limiting boss, and the rear end of the piston rod is located outside the piston cylinder; a gap is formed between the central through hole and the piston rod, and a glue inlet channel communicated to the front end face is formed in the piston rod; the driving mechanism is connected with the piston rod to drive the piston rod to act; the piston rod moves backwards to enable the limiting boss to be abutted against the central through hole in a sealing mode, and the glue inlet channel is communicated with the eccentric through hole; the piston rod moves forwards to enable the front end face of the piston rod to be attached to the inner wall of the mounting cavity in a sealing mode, and the central through hole is communicated with the eccentric through hole.
Furthermore, a sealing ring is assembled on the inner wall of the installation cavity corresponding to the front end face of the piston rod, and when the piston rod moves forwards, the front end face of the piston rod is in sealing and abutting connection with the sealing ring.
Further, the piston comprises a first piston sleeve and a second piston sleeve, the first piston sleeve and the second piston sleeve are covered and fixed with each other and enclose to form an installation cavity, and the first piston sleeve faces the first cavity and is provided with the central through hole; the second piston sleeve faces the second chamber and is provided with the eccentric through hole.
Furthermore, the piston rod is provided with a central channel which runs through the rear end and the front end of the piston rod, and the central channel is the glue inlet channel; the rear end of the piston rod is connected with a glue inlet switching block and is connected with the driving mechanism through the glue inlet switching block.
Further, the piston cylinder comprises a fixed block, a piston sleeve and a rubber outlet block, the fixed block and the rubber outlet block are respectively fixed on openings at two ends of the piston sleeve in a sealing manner, and a piston rod sleeve hole and a rubber outlet channel are formed in the rubber outlet block; the piston rod is hermetically arranged in the piston rod sleeve hole of the rubber block in a penetrating way.
Furthermore, the piston sleeve comprises a piston outer sleeve and a piston inner sleeve assembled in the piston outer sleeve, and sealing rings are assembled at the end parts of the two ends of the piston inner sleeve and are respectively in sealing fit with the fixing block and the rubber outlet block through the sealing rings.
Furthermore, the glue dispenser further comprises an installation base, and piston cylinders of the driving mechanism and the glue discharging mechanism are fixedly installed on the installation base.
Further, actuating mechanism includes servo motor and slip table module, the servo motor drive is connected the slip table module, the slip table module is connected the piston rod.
Furthermore, be fixed with the ejector pad on the slip table module, set up the draw-in groove of vertical extension on the ejector pad, the rear end of piston rod is connected with into gluey switching piece, it has the joint to advance to protruding on the gluey switching piece to realize the joint in inserting the draw-in groove through the joint.
Through the technical scheme provided by the invention, the method has the following beneficial effects:
when the piston rod moves backwards, the limiting boss is in sealing and abutting connection with the central through hole so as to plug the central through hole, and the glue inlet channel is communicated with the eccentric through hole; the piston rod continues to move backwards to drive the piston to move backwards, the volume of the first cavity is reduced, the volume of the second cavity is increased, and glue in the first cavity is discharged from the glue outlet channel. At the same time, glue flows in from the glue inlet channel and thus flows into the second chamber via the mounting cavity and the eccentric through hole to fill the enlarged second chamber.
When the piston rod moves forwards, the front end face of the piston rod is in sealing fit with the inner wall of the mounting cavity, the glue inlet channel is blocked, and the central through hole is communicated with the eccentric through hole, namely the first cavity is communicated with the second cavity. The piston rod moves forwards continuously to drive the piston to move forwards, the volume of the first cavity is increased, the volume of the second cavity is decreased, glue in the second cavity can flow into the first cavity, and due to the fact that a difference exists between the volumes of the first cavity and the second cavity, part of glue can be discharged from the glue outlet channel.
Thus, continuous glue discharging is realized; thereby realizing continuous dispensing operation and effectively improving the production efficiency.
Drawings
FIG. 1 is a schematic perspective view of a continuous gel-dispensing type plug valve according to an embodiment;
FIG. 2 is a schematic perspective view of a continuous gel-out type plug valve at another angle according to an embodiment;
fig. 3 is a sectional view showing a partial structure of a continuous gel-out type plunger valve in the embodiment;
FIG. 4 is an enlarged schematic view of area A of FIG. 3;
FIG. 5 is a schematic view showing an internal structure of a continuous gel-dispensing type plunger valve according to an embodiment when a piston moves backward;
FIG. 6 is a schematic view showing an internal structure of a continuous gel-dispensing type plunger valve according to an embodiment when a piston moves forward;
FIG. 7 is an exploded view of a glue dispensing mechanism of the continuous glue dispensing type plunger valve according to the embodiment;
fig. 8 is an exploded view of a part of a glue discharging mechanism in the continuous glue discharging type plunger valve in the embodiment.
Detailed Description
To further illustrate the various embodiments, the invention provides the accompanying drawings. The accompanying drawings, which are incorporated in and constitute a part of this disclosure, illustrate embodiments of the invention and, together with the description, serve to explain the principles of the embodiments. Those skilled in the art will appreciate still other possible embodiments and advantages of the present invention with reference to these figures. Elements in the figures are not drawn to scale and like reference numerals are generally used to indicate like elements.
The invention will now be further described with reference to the accompanying drawings and detailed description.
Referring to fig. 1 to 8, the present embodiment provides a continuous glue-discharging type plunger valve, which includes a driving mechanism 20 and a glue discharging mechanism 10, where the glue discharging mechanism 10 includes a piston cylinder 11, a piston 12 and a piston rod 13, the piston 12 is slidably mounted in a piston cavity of the piston cylinder 11, so as to divide the piston cavity into a first chamber 101 near a rear end of the piston cylinder 11 and a second chamber 102 near a front end of the piston cylinder 11; and the piston cylinder 11 is provided with a glue outlet channel 103 communicated with the first cavity 101.
The piston 12 has a mounting cavity 1201, a central through hole 1211 communicating the mounting cavity 1201 with the first chamber 101, and an eccentric through hole 1221 communicating the mounting cavity 1201 with the second chamber 102; specifically, the central through hole 1211 is located at the central position of the piston 12, the eccentric through holes 1221 are offset from the central position of the piston 12, and in the present embodiment, the number of the eccentric through holes 1221 is four.
The piston rod 13 is arranged in the first chamber 101 and the central through hole 1211 in a penetrating manner, the front end of the piston rod extends outwards in the radial direction to form a limiting boss 132, the piston rod can be limited in the installation cavity 1201 in a front-back movable manner through the limiting boss 132, and the rear end of the piston rod is arranged outside the piston cylinder 11; the central through hole 1211 has a gap with the piston rod 13.
A glue inlet channel 131 communicated to the front end face is formed in the piston rod 13; the driving mechanism 20 is connected to the piston rod 13 to drive the piston rod 13 to move, i.e. to drive the piston rod 13 to move back and forth.
In operation, referring to fig. 5, the piston rod 13 moves backward to make the limit boss 132 tightly abut against the central through hole 1211, and the glue inlet channel 131 is communicated with the eccentric through hole 1221. The specific process comprises the following steps: when the piston rod 13 moves backwards, the limiting boss 132 is in sealing contact with the central through hole 1211, so that the central through hole 1211 is blocked, and the first chamber 101 and the second chamber 102 are blocked; the piston 12 is driven to move backwards by the piston rod 13 moving backwards, at this time, the volume of the first chamber 101 becomes smaller, the volume of the second chamber 102 becomes larger, and the glue in the first chamber 101 is discharged from the glue outlet channel 103. At the same time, the glue flows in from the glue inlet channel 131 and flows into the second chamber 102 through the installation cavity 1201 and the eccentric through hole 1221 in sequence to fill the enlarged second chamber 102. This process accomplishes both the injection and the ejection of the glue.
Referring to fig. 6, the piston rod 13 moves forward to make the front end face of the piston rod sealingly fit on the inner wall of the mounting cavity 1201, and the central through hole 1211 is communicated with the eccentric through hole 1221. The specific process comprises the following steps: when the piston rod 13 moves forward, the front end face of the piston rod 13 is tightly attached to the inner wall of the installation cavity 1201, and the glue inlet channel 131 is blocked to prevent the backflow of the glue. The central through hole 1211 communicates with the eccentric through hole 1221, that is, the first chamber 101 and the second chamber 102. The piston 12 is driven to move forward by the piston rod 13 moving forward, and at this time, the volume of the first chamber 101 becomes larger, the volume of the second chamber 102 becomes smaller, and the glue in the second chamber 102 flows into the first chamber 101. Since there is a difference in the volume change of the first chamber 101 and the second chamber 102, that is, since the piston rod 13 exists in the first chamber 101, the length of the piston rod 13 entering the first chamber 101 becomes longer due to the forward movement thereof, and therefore, the volume change amount (referred to as increase amount) of the first chamber 101 is smaller than the volume change amount (referred to as decrease amount) of the second chamber 102; therefore, part of the glue will be discharged from the glue outlet channel 103. This process alone achieves the discharge of the glue.
Thus, the piston rod 13 moves back and forth to realize continuous glue discharging; thereby realizing continuous dispensing operation and effectively improving the production efficiency.
A sealing ring 123 is assembled on the inner wall of the installation cavity 1201 corresponding to the front end face of the piston rod 13, and when the piston rod 13 moves forwards, the front end face of the piston rod 13 is in sealing contact with the sealing ring 123, so that the sealing effect is better.
Specifically, in order to facilitate the structural arrangement and assembly, in this embodiment, the piston 12 includes a first piston sleeve 121 and a second piston sleeve 122, the first piston sleeve 121 and the second piston sleeve 122 are covered and fixed to each other and enclose a mounting cavity 1201, and the first piston sleeve 121 faces the first chamber 101 and is provided with the central through hole 1211; the second piston sleeve 122 faces the second chamber 102 and opens the eccentric through hole 1221. During the manufacturing process, the first piston sleeve 121 and the second piston sleeve 122 may be separately manufactured; during assembly, the piston rod 13 can be sleeved into the central through hole 1211 of the first piston sleeve 121, and then the second piston sleeve 122 is covered; the operation is more convenient. Of course, in other embodiments, the structure of the piston 12 is not limited thereto.
The piston rod 13 is provided with a central channel penetrating through the rear end and the front end of the piston rod, that is, the piston rod 13 is of a tubular structure, and the central channel is the glue inlet channel 131; the rear end of the piston rod 13 is connected with a glue inlet adapter block 14, the piston rod is connected with a glue supply device through the glue inlet adapter block 14, and meanwhile, the piston rod is connected with the driving mechanism 20 through the glue inlet adapter block 14, so that the piston rod is connected with the driving mechanism 20.
The piston cylinder 11 comprises a fixed block 111, a piston sleeve 112 and a rubber block 113, the fixed block 111 and the rubber block 113 are respectively fixed on openings at two ends of the piston sleeve 112 in a sealing manner, specifically, the rubber block 113 is fixed on an opening at the rear end of the piston sleeve 112 in a sealing manner, and the fixed block 111 is fixed on an opening at the front end of the piston sleeve 112 in a sealing manner. A piston rod trepanning and the glue outlet channel 103 are formed on the glue outlet block 113; the piston rod 13 is hermetically arranged in the piston rod sleeve hole of the rubber block 113 in a penetrating way. The piston cylinder 11 is arranged in a split mode, when the piston cylinder is assembled, the assembled piston 12 and the assembled piston rod 13 can be placed in the piston sleeve 112, and then the fixed block 111 and the rubber outlet block 113 are assembled respectively; the assembly of the whole glue discharging mechanism 10 is facilitated.
Further, the piston sleeve 112 comprises a piston outer sleeve 1121 and a piston inner sleeve 1122 assembled in the piston outer sleeve 1121, and the two end portions of the piston inner sleeve 1122 are assembled with sealing rings 114 and are respectively in sealing fit with the fixing block 111 and the glue discharging block 113 through the sealing rings 114. The inner piston sleeve 1122 is used for matching with the piston 12, the fixing block 111 and the rubber discharging block 113, and the outer piston sleeve 1121 plays a role in isolation protection and fixing.
The glue discharging mechanism 10 provided by the embodiment is simple in structure and convenient to assemble; and no excessively complex flow channel exists, so that the pressure loss in the flow channel is reduced, and the glue can enter and exit conveniently. Of course, in other embodiments, this is not limiting.
Specifically, the plunger valve further comprises a mounting base 30, and the driving mechanism 20 and the piston cylinder 11 of the glue discharging mechanism 10 are both fixedly mounted on the mounting base 30. Therefore, the plunger valve is integrated into an integral structure, and the plunger valve is convenient to sell and use after being assembled.
The driving mechanism 20 comprises a servo motor 21 and a sliding table module 22, the servo motor 21 is in driving connection with the sliding table module 22, and the sliding table module 22 is connected with the piston rod 13. The piston rod 13 is driven to move by adopting a mode that the servo motor 21 drives the sliding table module 22; can carry out accurate control to the volume of gluing out.
Specifically, this slip table module 22 is current structure, including the slide rail, assemble the slider on the slide rail and with slider complex lead screw etc. servo motor 21 drives the lead screw and rotates, the rotation drive slider of lead screw slides on the slide rail.
A material pushing block 23 is fixed on the sliding table module 22, specifically, the material pushing block 23 is fixed on a sliding block of the sliding table module 22; the vertical draw-in groove 231 that extends has been seted up on the ejector pad 23, the rear end of piston rod 13 is connected with into gluey adapter block 14, it has joint 141 to advance to protruding on the gluey adapter block 14 to realize the joint in inserting draw-in groove 231 through joint 141, structural connection is simple and install and remove portably.
Of course, in other embodiments, the structure of the drive mechanism 20 and the manner of connection to the piston rod 13 are not limited thereto.
While the invention has been particularly shown and described with reference to a preferred embodiment, it will be understood by those skilled in the art that various changes in form and detail may be made therein without departing from the spirit and scope of the invention as defined by the appended claims.
Claims (9)
1. The utility model provides a go out gluey type plunger valve in succession, includes actuating mechanism and goes out gluey mechanism, its characterized in that: the glue discharging mechanism comprises a piston cylinder, a piston and a piston rod, wherein the piston is assembled in a piston cavity of the piston cylinder in a sliding manner so as to divide the piston cavity into a first cavity close to the rear end of the piston cylinder and a second cavity close to the front end of the piston cylinder; a glue outlet channel communicated with the first cavity is formed in the piston cylinder; the piston is provided with a mounting cavity, a central through hole for communicating the mounting cavity with the first cavity and an eccentric through hole for communicating the mounting cavity with the second cavity; the piston rod penetrates through the first cavity and the central through hole, the front end of the piston rod radially extends outwards to form a limiting boss, the piston rod can be limited in the mounting cavity in a forward and backward movable mode through the limiting boss, and the rear end of the piston rod is located outside the piston cylinder; a gap is formed between the central through hole and the piston rod, and a glue inlet channel communicated to the end face of the front end is arranged in the piston rod; the driving mechanism is connected with the piston rod to drive the piston rod to act;
the piston rod moves backwards to enable the limiting boss to be in sealing and abutting connection with the central through hole, and the glue inlet channel is communicated with the eccentric through hole;
the piston rod moves forwards to enable the front end face of the piston rod to be in sealing fit with the inner wall of the mounting cavity, and the central through hole is communicated with the eccentric through hole.
2. The continuous tapping type plunger valve according to claim 1, wherein: and a sealing ring is assembled on the inner wall of the mounting cavity corresponding to the front end face of the piston rod, and when the piston rod moves forwards, the front end face of the piston rod is in sealing and abutting connection with the sealing ring.
3. The continuous tapping type plunger valve according to claim 1, wherein: the piston comprises a first piston sleeve and a second piston sleeve, the first piston sleeve and the second piston sleeve are mutually covered, fixed and enclosed to form an installation cavity, and the first piston sleeve faces the first cavity and is provided with the central through hole; the second piston sleeve faces the second chamber and is provided with the eccentric through hole.
4. The continuous tapping type plunger valve according to claim 1, wherein: the piston rod is provided with a central channel which runs through the rear end and the front end of the piston rod, and the central channel is the glue inlet channel; the rear end of the piston rod is connected with a glue inlet switching block, and the piston rod is connected with the driving mechanism through the glue inlet switching block.
5. The continuous tapping type plunger valve according to claim 1, wherein: the piston cylinder comprises a fixed block, a piston sleeve and a rubber discharging block, the fixed block and the rubber discharging block are respectively fixed on openings at two ends of the piston sleeve in a sealing mode, and a piston rod sleeve hole and the rubber discharging channel are formed in the rubber discharging block; the piston rod is hermetically arranged in the piston rod sleeve hole of the rubber block in a penetrating way.
6. The continuous tapping type plunger valve according to claim 5, wherein: the piston sleeve comprises a piston outer sleeve and a piston inner sleeve assembled in the piston outer sleeve, and sealing rings are assembled at the end parts of the two ends of the piston inner sleeve and are respectively in sealing fit with the fixing block and the rubber outlet block through the sealing rings.
7. The continuous tapping type plunger valve according to claim 1, wherein: the glue dispenser is characterized by further comprising an installation base, and the piston cylinders of the driving mechanism and the glue discharging mechanism are fixedly installed on the installation base.
8. The continuous tapping type plunger valve according to claim 1 or 7, wherein: the driving mechanism comprises a servo motor and a sliding table module, the servo motor is connected with the sliding table module in a driving mode, and the sliding table module is connected with the piston rod.
9. The continuous tapping type plunger valve according to claim 8, wherein: the sliding table module is fixed with a pushing block, a vertically extending clamping groove is formed in the pushing block, the rear end of the piston rod is connected with a glue inlet switching block, a clamping joint is arranged on the glue inlet switching block in a protruding mode, and the clamping joint is inserted into the clamping groove through the clamping joint to achieve clamping.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210280167.2A CN114653537B (en) | 2022-03-22 | 2022-03-22 | Continuous glue-discharging type plunger valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210280167.2A CN114653537B (en) | 2022-03-22 | 2022-03-22 | Continuous glue-discharging type plunger valve |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN114653537A CN114653537A (en) | 2022-06-24 |
| CN114653537B true CN114653537B (en) | 2023-01-03 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210280167.2A Active CN114653537B (en) | 2022-03-22 | 2022-03-22 | Continuous glue-discharging type plunger valve |
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| CN (1) | CN114653537B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116273671B (en) * | 2023-03-23 | 2023-08-04 | 雄县舰海防水辅料有限公司 | Glue spreading device for self-adhesive waterproof coiled material film production and use method thereof |
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| CN203452990U (en) * | 2013-08-26 | 2014-02-26 | 杨曰忠 | Improved plunger pump of glue-injection machine |
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| CN209476587U (en) * | 2018-11-23 | 2019-10-11 | 东莞市欧力自动化科技有限公司 | A kind of dispensing glue spraying dual purpose glue valve |
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| CN113134456A (en) * | 2021-04-30 | 2021-07-20 | 烟台拓展聚氨酯设备有限公司 | Two-component dispensing valve, glue injection machine with same and use method of glue injection machine |
| CN213967461U (en) * | 2020-12-15 | 2021-08-17 | 威海荣泽工业自动化设备有限公司 | Integrated trace metering assembly |
| CN215542303U (en) * | 2021-06-24 | 2022-01-18 | 苏州特瑞特机器人有限公司 | Automatic adhesive dispensing device |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7617955B2 (en) * | 2004-10-28 | 2009-11-17 | Nordson Corporation | Method and system for dispensing liquid from a module having a flexible bellows seal |
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2022
- 2022-03-22 CN CN202210280167.2A patent/CN114653537B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2664332A2 (en) * | 1984-07-10 | 1992-01-10 | Bardey Bernard | Metering pump with reciprocating piston |
| CN203452990U (en) * | 2013-08-26 | 2014-02-26 | 杨曰忠 | Improved plunger pump of glue-injection machine |
| CN203610272U (en) * | 2013-11-15 | 2014-05-28 | 深圳市阿莱恩斯科技有限公司 | Double-rod dispensing valve |
| CN209476587U (en) * | 2018-11-23 | 2019-10-11 | 东莞市欧力自动化科技有限公司 | A kind of dispensing glue spraying dual purpose glue valve |
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| CN114653537A (en) | 2022-06-24 |
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