CN210411386U - Glue dispenser, piezoelectric injection valve and quick assembling and disassembling type runner device of piezoelectric injection valve - Google Patents
Glue dispenser, piezoelectric injection valve and quick assembling and disassembling type runner device of piezoelectric injection valve Download PDFInfo
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- CN210411386U CN210411386U CN201921157713.3U CN201921157713U CN210411386U CN 210411386 U CN210411386 U CN 210411386U CN 201921157713 U CN201921157713 U CN 201921157713U CN 210411386 U CN210411386 U CN 210411386U
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Abstract
The utility model belongs to the technical field of piezoelectric injection valve's runner subassembly technique and specifically relates to a fast loading and unloading formula runner device for piezoelectric injection valve, this runner device includes: the installation part of the valve body is provided with a loading position for placing the runner body into the installation part and a working position where the runner body works; the runner body can rotate along the installation direction and the disassembly direction opposite to the installation direction; the utility model adopts a rotary assembly mode to realize the installation and the disassembly of the runner body, the mode is novel, an auxiliary tool is not needed during the assembly and the disassembly, the operation is very convenient and fast, so as to simplify the maintenance flow of the piezoelectric injection valve and save the maintenance time; meanwhile, the runner assembly can be firmly fixed on the valve body, so that the vibration of the runner body caused by the high-frequency vibration of the piezoelectric injection valve is prevented, and the dispensing effect can be effectively improved.
Description
Technical Field
The utility model belongs to the technical field of piezoelectric injection valve's runner subassembly technique and specifically relates to a fast loading and unloading formula runner device, in addition, the utility model discloses still relate to a piezoelectric injection valve and a point gum machine including above-mentioned piezoelectric injection valve of including above-mentioned fast loading and unloading formula runner device.
Background
With the rapid development of the electronic industry, the requirement on electronic packaging is higher and higher, and aiming at the high-requirement electronic packaging technology, the non-contact injection valve is more and more widely applied in the field of electronic packaging with the advantages of high efficiency, high precision and the like, and the piezoelectric stack with high response speed and high precision is used as a core driving component of the non-contact piezoelectric injection valve and is also widely applied in the non-contact injection valve;
as is well known, the main structure of a piezoelectric valve is composed of a valve body, a piezoelectric actuator arranged in the valve body, an amplifier, a flow channel assembly and the like, and the main principle is as follows: amplifying the deformation of the piezoelectric ceramic in the piezoelectric actuator after being electrified by using an amplifier through a lever principle, and transmitting the deformation to a jet push rod in the runner assembly, so that the glue solution in the runner assembly is jetted by using the jet push rod;
the piezoelectric valve on the market at present generally adopts a detachable connection structure about the connection between a flow passage component and a valve body, and aims to facilitate the cleaning and replacement of a flow passage in the flow passage component; the detachable connection structure between the existing piezoelectric valve and the flow channel assembly mainly adopts screws to fix the flow channel assembly on the valve body from the lower part, however, the fixing mode has the following defects in the actual production process: when the piezoelectric valve is used, due to the existence of other elements, the available space below the piezoelectric valve has certain limitation, so that an insufficient space is not provided for a screwdriver to assemble and disassemble screws between the flow channel assembly and the valve body from the lower part of the flow channel assembly, and the flow channel assembly is fixed on the valve body from the lower part by directly adopting the screws, the number of the required screws is inevitably large, and the maintenance of the piezoelectric valve is a very complicated and time-consuming process;
in view of this, the present invention aims to improve the connection structure between the flow channel assembly and the valve body on the basis of the existing piezoelectric valve and solve the above problems, so as to simplify the maintenance process of the piezoelectric valve and save the maintenance time.
SUMMERY OF THE UTILITY MODEL
The to-be-solved technical problem of the utility model is: in order to solve the very loaded down with trivial details consuming time problem of dismouting between the runner subassembly of the piezoelectric valve among the prior art and the valve body, now provide a fast loading and unloading formula runner device, another purpose of the utility model is to provide a piezoelectric injection valve and a point gum machine including above-mentioned piezoelectric injection valve of including above-mentioned fast loading and unloading formula runner device.
The utility model provides a technical scheme that its technical problem adopted is: the utility model provides a quick loading and unloading formula runner device for piezoelectric injection valve, this piezoelectric injection valve include the valve body and be located installation department and the push rod mounting hole of valve body bottom, and this runner device includes:
the runner assembly is provided with a runner body and an injection push rod arranged on the runner body, the mounting part of the valve body is provided with a loading position for placing the runner body into the mounting part and a working position for the runner body to work, and the injection push rod can also be positioned in the push rod mounting hole when the runner body is inserted into the loading position; the runner body can rotate along the installation direction and the disassembly direction opposite to the installation direction by taking the axis of the injection push rod as a rotation center;
and a locking unit for locking the flow path body rotated from the fitting position to the fixing position in the mounting direction in the mounting portion.
Furthermore, the locking unit comprises a main pre-tightening assembly, the main pre-tightening assembly is provided with a pressing block capable of retracting elastically, when the runner body rotates to the working position along the installation direction from the installation position, the runner body can overcome the elasticity of the pressing block to force the pressing block to generate displacement, and after the runner body reaches the working position, a certain pre-tightening force is generated on the runner body to enable the runner body to be abutted against the installation portion.
Furthermore, the main pre-tightening assembly further comprises a first spring, a first mounting hole matched with the pressing block is formed in the valve body, the pressing block is slidably arranged in the first mounting hole and protrudes out of the end portion of the bottom end of the valve body, and the first spring is arranged between the bottom of the first mounting hole and the pressing block.
Furthermore, the front end of the end face of one end, close to the runner body, of the pressing block is an inclined guide surface.
Further, the guide surface is a circular arc surface or an inclined surface.
Furthermore, a first strip-shaped limiting hole is formed in the pressing block, a first limiting rod is inserted into the first strip-shaped limiting hole, and the first limiting rod is fixed on the valve body.
Furthermore, one end of a compression block in the main pre-tightening assembly is fixed on the valve body, and the other end of the compression block tilts towards the runner body at the working position.
Further, the locking unit further comprises a locking assembly, and the locking assembly is used for forcing the pressing block to move to lock the runner body in the working position in the mounting part.
Furthermore, the locking assembly comprises a locking screw, the end part of the threaded end of the locking screw is a hemispherical surface, the locking screw is in threaded connection with the valve body, and the locking screw is used for driving the pressing block to approach the runner body.
Further, the pressing block is provided with an inclined locking surface which is used for being matched with the end part of the thread end of the locking screw.
Furthermore, the locking unit further comprises a locking assembly, the locking assembly comprises a locking screw, the end part of the threaded end of the locking screw is a hemispherical surface, the locking screw is connected to the valve body in a threaded manner, a transmission rod is arranged in the valve body in a sliding manner, the end part of the threaded end of the locking screw is matched with one end of the transmission rod, and the other end of the transmission rod is in contact with one side, away from the runner body, of the pressing block.
Furthermore, the locking unit further comprises an auxiliary pre-tightening assembly, the auxiliary pre-tightening assembly is provided with a fastening pin capable of retracting elastically, when the runner body rotates to the working position along the installation direction from the installation position, the runner body can overcome the elasticity of the fastening pin to force the fastening pin to move, and after the runner body reaches the working position, a certain pre-tightening force is generated on the runner body to enable the runner body to be abutted against the installation part.
The fastening pin can simultaneously apply certain rotation resistance for preventing the runner body at the working position from rotating along the disassembly direction.
Furthermore, the auxiliary pre-tightening assembly further comprises a second spring, a second mounting hole matched with the tightening pin is formed in the valve body, the tightening pin is arranged in the second mounting hole in a sliding mode and protrudes out of the end portion of the bottom end of the valve body, and the second spring is arranged between the bottom of the second mounting hole and the tightening pin.
Furthermore, a second strip-shaped limiting hole is formed in the fastening pin, a second limiting rod is inserted into the second strip-shaped limiting hole, and the second limiting rod is fixed on the valve body.
Furthermore, when the runner body rotates to the working position from the loading position, each side in contact with the fastening pin is provided with a matching inclined surface for contacting with the fastening pin, and the end part of the fastening pin, which is in contact with the matching inclined surface, is a hemispherical surface.
Further, the locking unit is including setting up the locking screw on the installation department, and the runner body upper surface that is located operating position department contacts with the valve body bottom surface, and the runner body lower surface that is located operating position department contacts with the installation department, locking screw and the runner body threaded connection who is located operating position department.
Furthermore, the installation part comprises a right side plate fixed on the right side of the bottom surface of the valve body, a rear side plate fixed on the rear side of the bottom surface of the valve body and a bottom side plate fixed at the bottom ends of the right side plate and the rear side plate relatively, the runner body in the working position is positioned between the bottom side plate and the valve body, a notch used for being filled into the runner body is formed in the bottom side plate, and the notch is opposite to the push rod installation hole.
Further, the flow channel in the flow channel body inclines upwards from left to right
The utility model also provides a piezoelectricity injection valve, including foretell fast loading and unloading formula runner device.
The utility model also provides a point gum machine, including foretell piezoelectricity injection valve.
The utility model has the advantages that: the utility model discloses a quick loading and unloading formula runner device realizes the installation and dismantlement of runner body through adopting rotatory assembly methods, and the mode is novel, also need not to borrow appurtenance during loading and unloading, and the operation is very convenient and fast to the maintenance flow of simplification piezoelectricity injection valve, practices thrift the maintenance time; meanwhile, the runner assembly can be firmly fixed on the valve body, so that the vibration of the runner body caused by the high-frequency vibration of the piezoelectric injection valve is prevented, and the dispensing effect can be effectively improved.
Drawings
The present invention will be further explained with reference to the drawings and examples.
Fig. 1 is an exploded view of the quick-loading and unloading flow passage device of the present invention;
FIG. 2 is a schematic front view of the quick-mount-dismount flow passage device of the present invention;
FIG. 3 is a side three-dimensional schematic view of the quick-attach/detach flow path device of the present invention;
fig. 4 is a three-dimensional schematic view of the other side of the quick-loading and unloading flow passage device of the present invention;
FIG. 5 is an enlarged partial schematic view of C in FIG. 4;
fig. 6 is a three-dimensional schematic view of the locking unit of the present invention disposed on the valve body;
fig. 7 is a three-dimensional schematic view of a center flow channel assembly of the present invention;
fig. 8 is a schematic cross-sectional view of the quick-attach/detach flow path device of the present invention;
FIG. 9 is a schematic sectional view taken along line A-A in FIG. 8;
FIG. 10 is a schematic sectional view taken along line B-B in FIG. 8;
FIG. 11 is a schematic view of the flow path assembly and the valve body of the present invention;
fig. 12 is an assembly diagram of the main pre-tightening assembly and the locking assembly in embodiment 2 of the present invention;
fig. 13 is a schematic view of a quick-attach/detach flow path device according to embodiment 3 of the present invention.
In the figure: 1. the valve comprises a valve body, 1-1, a push rod mounting hole, 101, a first mounting hole, 102 and a second mounting hole; 2. the mounting part comprises 2-1 parts of a right side plate, 2-2 parts of a rear side plate, 2-21 parts of an inner surface, 2-3 parts of a bottom side plate, 2-31 parts of a notch;
3. a flow channel assembly; 3-1 parts of a flow channel body, 3-11 parts of a flow channel, 3-12 parts of a matching inclined plane, 3-2 parts of a jet push rod, 3-3 parts of an annular bulge;
4. 4-1 parts of a main pre-tightening assembly, 4-11 parts of a pressing block, 4-12 parts of a guide surface, 4-13 parts of a first strip-shaped limiting hole, 4-2 parts of a locking surface, 4-3 parts of a first spring and a first limiting rod;
5. the auxiliary pre-tightening assembly comprises 5-1 parts of a tightening pin, 5-11 parts of a second strip-shaped limiting hole, 5-2 parts of a second spring, 5-3 parts of a second limiting rod;
6. locking screw 6-1, driving rod;
7. a loading position;
8. the working position.
Detailed Description
The present invention will now be described in further detail with reference to the accompanying drawings. The drawings are simplified schematic drawings, which illustrate the basic structure of the invention only in a schematic way, and thus show only the components that are relevant to the invention, and the directions and references (e.g., upper, lower, left, right, etc.) may be used only to help describe the features in the drawings. The following detailed description is, therefore, not to be taken in a limiting sense, and the scope of the claimed subject matter is defined only by the appended claims and equivalents thereof.
Example 1
As shown in fig. 1 to 11, a quick-attach and detach type flow channel device for a piezo-electric injection valve, the piezo-electric injection valve including a valve body 1, and a mounting portion 2 and a push rod mounting hole 1-1 at a bottom end of the valve body 1, the flow channel device comprising:
the runner assembly 3 is provided with a runner body 3-1 and an injection push rod 3-2 arranged on the runner body 3-1, a loading position 7 for placing the runner body 3-1 into the mounting part 2 and a working position 8 where the runner body 3-1 works are arranged on the mounting part 2 of the valve body 1, and the injection push rod 3-2 is also positioned in the push rod mounting hole 1-1 when the runner body 3-1 is inserted into the loading position 7; the runner body 3-1 can rotate along the installation direction and the disassembly direction opposite to the installation direction by taking the axis of the injection push rod 3-2 as a rotation center;
and a locking unit for locking the flow path body 3-1 rotated from the fitting position 7 to the fixing position in the mounting part 2 in the mounting direction.
As shown in fig. 8 and 9, the locking unit includes a main pre-tightening assembly 4, the main pre-tightening assembly 4 has a pressing block 4-1 capable of elastically retracting, when the runner body 3-1 rotates from the loading position 7 to the working position 8 along the installation direction, the runner body 3-1 overcomes the elasticity of the pressing block 4-1 to force the pressing block 4-1 to displace, and after the runner body 3-1 reaches the working position 8, the pressing block 4-1 generates a certain pre-tightening force to the runner body 3-1 to press the runner body against the installation portion 2.
The main pre-tightening assembly 4 further comprises a first spring 4-2, a first mounting hole 101 matched with the pressing block 4-1 is formed in the valve body 1, the pressing block 4-1 is slidably arranged in the first mounting hole 101 and protrudes out of the end portion of the bottom end of the valve body 1, and the first spring 4-2 is arranged between the bottom of the first mounting hole 101 and the pressing block 4-1; the second spring 5-2 is arranged to enable the pressing block 4-1 to elastically stretch along the first mounting hole 101, so that when the runner body 3-1 rotates from the loading position 7 to the working position 8 along the mounting direction, the runner body 3-1 can force the pressing block 4-1 to move upwards, the first spring 4-2 is compressed, and the pressing block 4-1 is used for generating pre-tightening force on the runner body 3-1.
The front end of the end face of one end, close to the runner body 3-1, of the pressing block 4-1 is an inclined guide surface 4-11, and in this embodiment, the guide surface 4-11 is inclined downward from left to right, and may be an arc surface or an inclined surface.
A first strip-shaped limiting hole 4-12 is formed in the compressing block 4-1, a first limiting rod 4-3 is inserted into the first strip-shaped limiting hole 4-12, and the first limiting rod 4-3 is fixed on the valve body 1; the first limiting rod 4-3 is matched with the first strip-shaped limiting hole 4-12, so that the pressing block 4-1 can only move along the axis direction of the pressing block, and the pressing block 4-1 is prevented from rotating along with the rotation of the runner body 3-1; specifically, the second stopper rod 5-3 may be screwed to the valve body 1.
The locking unit further comprises a locking assembly for forcing the pressing block 4-1 to displace to lock the runner body 3-1 in the mounting part 2 in the working position 8.
The locking assembly comprises a locking screw 6, the end part of the threaded end of the locking screw 6 is a hemispherical surface, the locking screw 6 is in threaded connection with the valve body 1, and the locking screw 6 is used for driving the pressing block 4-1 to approach the runner body 3-1; by rotating the locking screw 6, the hemispherical surface of the locking screw 6 gradually approaches to the pressing block 4-1, and the pressing block 4-1 is forced to generate axial displacement, so that the runner body 3-1 is pressed and locked in the mounting part 2.
The pressing block 4-1 is provided with an inclined locking surface 4-13 which is matched with the end part of the thread end of the locking screw 6; specifically, the locking screw 6 is positioned at the rear side of the pressing block 4-1, and the locking surface 4-13 is inclined downwards from left to right.
As shown in fig. 8 and 10, the locking unit further includes a secondary pre-tightening assembly 5, the secondary pre-tightening assembly 5 has a resiliently retractable tightening pin 5-1, when the runner body 3-1 rotates from the loading position 7 to the working position 8 along the installation direction, the runner body 3-1 will overcome the elasticity of the tightening pin 5-1 to force the tightening pin 5-1 to displace, and after the runner body 3-1 reaches the working position 8, the tightening pin 5-1 generates a certain pre-tightening force to the runner body 3-1 to tighten it in the installation part 2.
The fastening pin 5-1 can simultaneously apply a certain rotation resistance to the runner body 3-1 at the working position 8 to prevent the runner body 3-1 from rotating along the disassembly direction.
The auxiliary pre-tightening assembly 5 further comprises a second spring 5-2, a second mounting hole 102 matched with the fastening pin 5-1 is formed in the valve body 1, the fastening pin 5-1 is arranged in the second mounting hole 102 in a sliding mode and protrudes out of the end portion of the bottom end of the valve body 1, and the second spring 5-2 is arranged between the bottom of the second mounting hole 102 and the fastening pin 5-1; the second spring 5-2 is arranged to enable the fastening pin 5-1 to elastically stretch and contract along the second mounting hole 102, so that when the runner body 3-1 rotates from the loading position 7 to the working position 8 along the mounting direction, the runner body 3-1 can force the fastening pin 5-1 to displace upwards, the second spring 5-2 is compressed, and a pre-tightening force is generated on the runner body 3-1 by the fastening pin 5-1.
A second strip-shaped limiting hole 5-11 is formed in the fastening pin 5-1, a second limiting rod 5-3 is inserted into the second strip-shaped limiting hole 5-11, and the second limiting rod 5-3 is fixed on the valve body 1; the fastening pin 5-1 can only move along the axis direction through the matching of the second limiting rod 5-3 and the second strip-shaped limiting hole 5-11, so that the fastening pin 5-1 is prevented from rotating along with the rotation of the runner body 3-1; specifically, the second stopper rod 5-3 may be screwed to the valve body 1.
When the runner body 3-1 rotates from the loading position 7 to the working position 8, each side in contact with the fastening pin 5-1 is provided with a matching inclined surface 3-12 for contacting with the fastening pin 5-1, and the end part of one end of the fastening pin 5-1, which is in contact with the matching inclined surface 3-12, is a hemispherical surface; the fastening pin 5-1 is arranged on the runner body 3-1 and contacts with the matching inclined plane 3-12 of the runner body 3-1 after the runner body 3-1 reaches the working position 8, so that the rotating resistance and the pre-tightening force are generated on the runner body 3-1; and the hemispherical surface on the fastening pin 5-1 can prevent the runner body 3-1 from being scratched by the fastening pin 5-1 during rotation.
The embodiment also optimizes the structure of the flow channel 3-11 in the flow channel body 3-1, greatly simplifies the maintenance process, and specifically comprises the following steps: the flow channel 3-11 in the flow channel body 3-1 is inclined upwards from left to right; the inclined flow channel 3-11 structure can make the glue flow more smoothly, and the corner is difficult to form the glue that does not flow.
As shown in FIGS. 1 and 7, in the present embodiment, the flow path body 3-1 is provided with an annular protrusion 3-3 matching with the push rod mounting hole 1-1, and when the flow path body 3-1 reaches the loading position 7, the annular protrusion 3-3 is inserted into the push rod mounting hole 1-1, so that the flow path body 3-1 is not displaced radially at the loading position 7 by the cooperation of the annular protrusion 3-3 and the push rod mounting hole 1-1.
As shown in fig. 2 and 3, the mounting portion 2 includes a right side plate 2-1 fixed on the right side of the bottom surface of the valve body 1, a rear side plate 2-2 fixed on the rear side of the bottom surface of the valve body 1, and a bottom side plate 2-3 fixed relatively to the bottom ends of the right side plate 2-1 and the rear side plate 2-2, the flow channel body 3-1 in the working position 8 is located between the bottom side plate 2-3 and the valve body 1, a notch 2-31 for installing the flow channel body 3-1 is formed in the bottom side plate 2-3, and the notch 2-31 is opposite to the push rod mounting hole 1-1; accordingly, the lower surface of the channel body 3-1 in the operating position 8 is actually in abutment with the bottom side plate 2-3 of the mounting portion 2.
For the installation of the main pre-tightening assembly 4, the auxiliary pre-tightening assembly 5 and the locking assembly: the main pre-tightening component 4, the auxiliary pre-tightening component 5 and the locking component in the embodiment are all arranged on the valve body 1, and all the components are positioned above the runner component 3; it goes without saying that the main pre-tightening assembly 4, the auxiliary pre-tightening assembly 5 and the locking assembly can also be arranged on the mounting part 2, i.e. the main pre-tightening assembly 4, the auxiliary pre-tightening assembly 5 and the locking assembly are all located below the runner assembly 3.
The mounting position 7 and the operating position 8 for the channel body 3-1 are specifically as follows: when the runner body 3-1 is inserted into the mounting part 2 from the gap 2-31 upwards and the injection push rod 3-2 is positioned in the push rod mounting hole 1-1, the position of the runner body 3-1 is the loading position 7; when the runner body 3-1 rotates along the installation direction from the loading position 7 to contact with the inner wall of the installation part 2 (the inner surface 2-21 of the rear side plate 2-2), the position of the runner body 3-1 is the working position 8, and meanwhile, the runner body 3-1 is quickly positioned on the valve body 1.
As shown in fig. 11, the principle of the present embodiment is explained as follows: when the runner body 3-1 rotates to a working position 8 along the installation direction from the loading position 7, the main pre-tightening component 4 and the auxiliary pre-tightening component 5 can automatically provide certain pre-tightening force for the runner body 3-1, so that the runner body 3-1 is pre-tightened and limited at the working position 8, then the clamping block 4-1 is driven by the locking component to continuously clamp the runner body 3-1, and the clamping block 4-1 is limited, so that the runner body 3-1 is firmly pressed in the installation part 2 by the clamping block 4-1, the vibration of the runner body 3-1 caused by the high-frequency vibration of the piezoelectric injection valve is prevented, and the effect of dispensing can be effectively improved;
the two-point pre-tightening mode of the main pre-tightening component 4 and the auxiliary pre-tightening component 5 on the runner body 3-1 can ensure that the stress of the runner body 3-1 at the working position 8 is relatively uniform, so that the vibration of the runner body 3-1 caused by the uneven stress of the runner body 3-1 when the piezoelectric injection valve works is avoided, and the dispensing effect can be further improved;
in addition, the auxiliary pre-tightening assembly 5 can also apply certain rotation resistance for preventing the runner body 3-1 at the working position 8 from rotating along the disassembly direction, so that the runner body 3-1 is effectively prevented from loosening, and the fixing effect on the runner body 3-1 is improved.
The advantages of this embodiment are: the installation between the flow channel component 3 and the valve body 1 can be completed only by three actions of inserting, rotating and screwing, and the flow channel body 3-1 is supported in the installation part 2 in advance by the pressing block 4-1 and the fastening pin 5-1, so that the movable allowance of the flow channel body 3-1 is very small, namely the flow channel body 3-1 can be screwed only by slightly rotating the locking screw 6, and therefore, when the flow channel component 3 and the valve body 1 are assembled and disassembled, the operation is very simple and convenient, and the flow channel body 3-1 can be firmly fixed on the valve body 1, so that the maintenance flow of the piezoelectric injection valve is simplified, and the maintenance time is saved.
The assembling and disassembling process of the flow channel assembly 3 and the valve body 1 in the embodiment is as follows:
installing the runner assembly 3: firstly, aligning a jet push rod 3-2 of a runner component 3 with a push rod mounting hole 1-1 at the bottom of a valve body 1, inserting the jet push rod into a mounting part 2 along a gap 2-31 to enable the runner component 3 to be located at a loading position 7, then rotating the runner component 3 at the loading position 7 along the mounting direction to be in contact with the inner wall of the mounting part 2 to enable the runner component 3 to be located at a working position 8, and finally screwing a locking screw 6;
disassembling the flow passage component 3: firstly, the locking screw 6 is loosened, then the runner assembly 3 is rotated from the working position 8 to the loading position 7 along the disassembling direction, and then the runner body 3-1 is drawn out from the mounting part 2 of the valve body 1 along the gap 2-31.
Example 2
as shown in fig. 12, the locking unit includes a main pre-tightening assembly 4, the main pre-tightening assembly 4 has a pressing block 4-1 capable of elastically retracting, when the runner body 3-1 rotates from the loading position 7 to the working position 8 along the installation direction, the runner body 3-1 overcomes the elasticity of the pressing block 4-1 to force the pressing block 4-1 to displace, and after the runner body 3-1 reaches the working position 8, a certain pre-tightening force is generated on the runner body 3-1 to abut against the installation portion 2.
One end of a compaction block 4-1 in the main pre-tightening assembly 4 is fixed on the valve body 1, and the other end of the compaction block tilts towards the runner body 3-1 at the working position 8; therefore, the pressing block 4-1 has elasticity, so that when the runner body 3-1 rotates to the working position 8 from the loading position 7 along the installation direction, the runner body 3-1 can force the tilting end of the pressing block 4-1 to move upwards, the tilting end of the pressing block 4-1 supports the runner body 3-1 in the installation part 2, and a pre-tightening force is generated on the runner body 3-1; and after the runner body 3-1 is disassembled, the pressing block 4-1 is restored to the original state again.
The locking unit further comprises a locking assembly, the locking assembly comprises a locking screw 6, the end part of the threaded end of the locking screw 6 is a hemispherical surface, the locking screw 6 is in threaded connection with the valve body 1, a transmission rod 6-1 is arranged in the valve body 1 in a sliding manner, the end part of the threaded end of the locking screw 6 is matched with one end of the transmission rod 6-1, and the other end of the transmission rod 6-1 is in contact with one side, away from the runner body 3-1, of the pressing block 4-1; by rotating the locking screw 6, the hemispherical surface of the locking screw 6 gradually draws close to the transmission rod 6-1 and forces the transmission rod 6-1 to generate displacement, so that the transmission rod 6-1 pushes the pressing block 4-1 to displace towards the runner body 3-1 at the working position 8, and the runner body 3-1 is pressed and locked in the mounting part 2; specifically, the transmission rod 6-1 and the locking screw 6 can be arranged perpendicular to each other, and the locking screw 6 is located on the back of the valve body 1 so as to tighten the locking screw 6.
As shown in fig. 8 and 10, the locking unit further includes a secondary pre-tightening assembly 5, the secondary pre-tightening assembly 5 has a resiliently retractable tightening pin 5-1, and when the runner body 3-1 rotates from the loading position 7 to the working position 8 along the installation direction, the runner body 3-1 will overcome the resilience of the tightening pin 5-1 to force the tightening pin 5-1 to displace, and after the runner body 3-1 reaches the working position 8, a certain pre-tightening force is generated to the runner body 3-1 to press it into the installation part 2.
The fastening pin 5-1 can simultaneously apply a certain rotation resistance to the runner body 3-1 at the working position 8 to prevent the runner body 3-1 from rotating along the disassembly direction.
The auxiliary pre-tightening assembly 5 further comprises a second spring 5-2, a second mounting hole 102 matched with the fastening pin 5-1 is formed in the valve body 1, the fastening pin 5-1 is arranged in the second mounting hole 102 in a sliding mode and protrudes out of the end portion of the bottom end of the valve body 1, and the second spring 5-2 is arranged between the bottom of the second mounting hole 102 and the fastening pin 5-1; the second spring 5-2 is arranged to enable the fastening pin 5-1 to elastically stretch and contract along the second mounting hole 102, so that when the runner body 3-1 rotates from the loading position 7 to the working position 8 along the mounting direction, the runner body 3-1 can force the fastening pin 5-1 to displace upwards, the second spring 5-2 is compressed, and a pre-tightening force is generated on the runner body 3-1 by the fastening pin 5-1.
A second strip-shaped limiting hole 5-11 is formed in the fastening pin 5-1, a second limiting rod 5-3 is inserted into the second strip-shaped limiting hole 5-11, and the second limiting rod 5-3 is fixed on the valve body 1; the fastening pin 5-1 can only move along the axis direction through the matching of the second limiting rod 5-3 and the second strip-shaped limiting hole 5-11, so that the fastening pin 5-1 is prevented from rotating along with the rotation of the runner body 3-1; specifically, the second stopper rod 5-3 may be screwed to the valve body 1.
When the runner body 3-1 rotates from the loading position 7 to the working position 8, each side in contact with the fastening pin 5-1 is provided with a matching inclined surface 3-12 for contacting with the fastening pin 5-1, and the end part of one end of the fastening pin 5-1, which is in contact with the matching inclined surface 3-12, is a hemispherical surface; the fastening pin 5-1 is arranged on the runner body 3-1 and contacts with the matching inclined plane 3-12 of the runner body 3-1 after the runner body 3-1 reaches the working position 8, so that the rotating resistance and the pre-tightening force are generated on the runner body 3-1; and the hemispherical surface on the fastening pin 5-1 can prevent the runner body 3-1 from being scratched by the fastening pin 5-1 during rotation.
As shown in fig. 2 and 3, the mounting portion 2 includes a right side plate 2-1 fixed on the right side of the bottom surface of the valve body 1, a rear side plate 2-2 fixed on the rear side of the bottom surface of the valve body 1, and a bottom side plate 2-3 fixed relatively to the bottom ends of the right side plate 2-1 and the rear side plate 2-2, the flow channel body 3-1 in the working position 8 is located between the bottom side plate 2-3 and the valve body 1, a notch 2-31 for installing the flow channel body 3-1 is formed in the bottom side plate 2-3, and the notch 2-31 is opposite to the push rod mounting hole 1-1; accordingly, the lower surface of the channel body 3-1 in the operating position 8 is actually in abutment with the bottom side plate 2-3 of the mounting portion 2.
When the runner body 3-1 is located at the working position 8, the pressing block 4-1 and the fastening pin 5-1 are respectively located at the left side and the right side of the injection push rod 3-2, and a connecting line between the pressing block 4-1 and the fastening pin 5-1 is arranged in a cross manner with the length direction of the runner body 3-1, namely, the pressing block 4-1 and the fastening pin 5-1 are approximately distributed diagonally relative to the runner body 3-1; therefore, the pre-tightening effect of the main pre-tightening component 4 and the auxiliary pre-tightening component 5 and the runner body 3-1 can be optimized, and the stress uniformity of the runner body 3-1 is improved.
For the installation of the locking assemblies of the main pre-tightening assembly 4 and the auxiliary pre-tightening assembly 5: the main pre-tightening component 4, the auxiliary pre-tightening component 5 and the locking component in the embodiment are all arranged on the valve body 1, and all the components are positioned above the runner component 3; it goes without saying that the main pre-tightening assembly 4, the auxiliary pre-tightening assembly 5 and the locking assembly can also be arranged on the mounting part 2, i.e. the main pre-tightening assembly 4, the auxiliary pre-tightening assembly 5 and the locking assembly are all located below the runner assembly 3.
The mounting position 7 and the operating position 8 for the channel body 3-1 are specifically as follows: when the runner body 3-1 is inserted into the mounting part 2 from the gap 2-31 upwards and the injection push rod 3-2 is positioned in the push rod mounting hole 1-1, the position of the runner body 3-1 is the loading position 7; when the runner body 3-1 rotates along the installation direction from the loading position 7 to contact with the inner wall of the installation part 2, the position of the runner body 3-1 is the working position 8, and meanwhile, the runner body 3-1 is quickly positioned on the valve body 1.
The loading and unloading process of this embodiment is the same as that of embodiment 1, and the specific structure of the main pre-tightening assembly 4 and the specific structure of the corresponding locking assembly are different from those of embodiment 1.
Example 3
as shown in fig. 13, the locking unit includes a locking screw 6 disposed on the mounting portion 2, an upper surface of the flow channel body 3-1 located at the working position 8 contacts with a bottom surface of the valve body 1, a lower surface of the flow channel body 3-1 located at the working position 8 contacts with the mounting portion 2, and the locking screw 6 is in threaded connection with the flow channel body 3-1 located at the working position 8.
As shown in fig. 2, 3 and 13, the mounting portion 2 includes a right side plate 2-1 fixed on the right side of the bottom surface of the valve body 1, a rear side plate 2-2 fixed on the rear side of the bottom surface of the valve body 1, and a bottom side plate 2-3 fixed relatively to the bottom ends of the right side plate 2-1 and the rear side plate 2-2, the flow channel body 3-1 in the working position 8 is located between the bottom side plate 2-3 and the valve body 1, a notch 2-31 for installing the flow channel body 3-1 is formed in the bottom side plate 2-3, and the notch 2-31 is opposite to the push rod mounting hole 1-1; correspondingly, the lower surface of the runner body 3-1 at the working position 8 is actually contacted with the upper surface of the bottom side plate 2-3 in the mounting part 2; specifically, in order to facilitate tightening of the locking screw 6, the nut end of the locking screw 6 is located on the back surface of the rear side plate 2-2.
The mounting position 7 and the operating position 8 for the channel body 3-1 are specifically as follows: when the runner body 3-1 is inserted into the mounting part 2 from the gap 2-31 upwards and the injection push rod 3-2 is positioned in the push rod mounting hole 1-1, the position of the runner body 3-1 is the loading position 7; when the runner body 3-1 rotates along the installation direction from the loading position 7 to contact with the inner wall of the installation part 2, the position of the runner body 3-1 is the working position 8, and meanwhile, the runner body 3-1 is quickly positioned on the valve body 1.
The principle and advantages of the locking unit of the embodiment are explained as follows: because the bottom of the runner body 3-1 is supported by the bottom side plate 2-3 of the mounting part 2 when the runner body 3-1 rotates from the loading position 7 to the working position 8 along the mounting direction, and the upper surface of the runner body 3-1 is also attached to the bottom surface of the valve body 1, the axial fixation of the runner body 3-1 and the valve body 1 is realized, namely the runner body 3-1 can be separated from the valve body 1 only after rotating along the dismounting direction, namely the runner body 3-1 only has a freedom degree of rotating along the dismounting direction, so that the runner body 3-1 can be fixed by a small number of locking screws 6, along with the reduction of the number of the locking screws 6, the operation is very simple and convenient when the runner assembly 3 is assembled with the valve body 1, and the runner body 3-1 can be firmly fixed on the valve body 1, so as to simplify the maintenance process of the piezoelectric injection valve and save the maintenance time.
The assembling and disassembling process of the flow channel assembly 3 and the valve body 1 in the embodiment is as follows:
installing the runner assembly 3: firstly, aligning a jet push rod 3-2 of a runner component 3 with a push rod mounting hole 1-1 at the bottom of a valve body 1, inserting the jet push rod into a mounting part 2 along a gap 2-31 to enable the runner component 3 to be located at a loading position 7, then rotating the runner component 3 at the loading position 7 along the mounting direction to be in contact with the inner wall of the mounting part 2 to enable the runner component 3 to be located at a working position 8, and then screwing a locking screw 6 on the mounting part 2 into a runner body 3-1 to finish mounting and fixing of the runner component 3 on the valve body 1;
disassembling the flow passage component 3: firstly, the locking screw 6 is loosened, then the runner assembly 3 is rotated from the working position 8 to the loading position 7 along the disassembling direction, and then the runner body 3-1 is drawn out from the mounting part 2 of the valve body 1 along the gap 2-31.
Example 4
The utility model also provides a piezoelectric injection valve, including the quick loading and unloading formula runner device of above-mentioned embodiment 1, 2 or 3.
Example 5
The utility model also provides a point gum machine, including above-mentioned embodiment 4's piezoelectric injection valve.
In light of the foregoing, it will be apparent to those skilled in the art from this disclosure that various changes and modifications can be made without departing from the spirit and scope of the invention. The technical scope of the present invention is not limited to the content of the specification, and must be determined according to the scope of the claims.
Claims (21)
1. The utility model provides a fast loading and unloading formula runner device for piezoelectricity injection valve, this piezoelectricity injection valve includes valve body (1) and is located installation department (2) and push rod mounting hole (1-1) of valve body (1) bottom, its characterized in that: the flow passage device includes:
the flow channel assembly (3) is provided with a flow channel body (3-1) and an injection push rod (3-2) arranged on the flow channel body (3-1), a loading position (7) for placing the flow channel body (3-1) into the loading part (2) and a working position (8) where the flow channel body (3-1) works are arranged on the mounting part (2) of the valve body (1), and the injection push rod (3-2) can be positioned in the push rod mounting hole (1-1) along with the flow channel body (3-1) when the flow channel body (3-1) is inserted into the loading position (7); the runner body (3-1) can rotate along the installation direction and the disassembly direction opposite to the installation direction by taking the axis of the injection push rod (3-2) as a rotation center;
and a locking unit for locking the flow path body (3-1) rotated from the loading position (7) to the fixing position in the mounting part (2) in the mounting direction.
2. A quick-release flow conduit device as claimed in claim 1, wherein: the locking unit comprises a main pre-tightening component (4), the main pre-tightening component (4) is provided with a pressing block (4-1) capable of retracting elastically, when the runner body (3-1) rotates to a working position (8) from a loading position (7) along the installation direction, the runner body (3-1) can overcome the elasticity of the pressing block (4-1) to force the pressing block (4-1) to generate displacement, and certain pre-tightening force is generated on the runner body (3-1) to enable the runner body (3-1) to be abutted against the installation part (2) after the runner body (3-1) reaches the working position (8).
3. A quick-release flow conduit device as claimed in claim 2, wherein: the main pre-tightening assembly (4) further comprises a first spring (4-2), a first mounting hole (101) matched with the pressing block (4-1) is formed in the valve body (1), the pressing block (4-1) is arranged in the first mounting hole (101) in a sliding mode and protrudes out of the end portion of the bottom end of the valve body (1), and the first spring (4-2) is arranged between the bottom of the first mounting hole (101) and the pressing block (4-1).
4. A quick-release runner apparatus as defined in claim 3, further comprising: the front end of the end face of one end of the pressing block (4-1) close to the runner body (3-1) is an inclined guide surface (4-11).
5. The quick disconnect flow conduit device of claim 4, wherein: the guide surfaces (4-11) are arc surfaces or inclined surfaces.
6. A quick-release runner apparatus as defined in claim 3, further comprising: the valve body is characterized in that a first strip-shaped limiting hole (4-12) is formed in the compressing block (4-1), a first limiting rod (4-3) is inserted into the first strip-shaped limiting hole (4-12), and the first limiting rod (4-3) is fixed on the valve body (1).
7. A quick-release flow conduit device as claimed in claim 2, wherein: one end of a pressing block (4-1) in the main pre-tightening assembly (4) is fixed on the valve body (1), and the other end of the pressing block tilts towards the runner body (3-1) at the working position (8).
8. A quick-release flow conduit device according to any one of claims 2 to 6, wherein: the locking unit further comprises a locking assembly, and the locking assembly is used for forcing the pressing block (4-1) to move to lock the runner body (3-1) in the working position (8) in the mounting part (2).
9. The quick disconnect flow conduit device of claim 8, wherein: the locking assembly comprises a locking screw (6), the end part of the threaded end of the locking screw (6) is a hemispherical surface, the locking screw (6) is in threaded connection with the valve body (1), and the locking screw (6) is used for driving the pressing block (4-1) to approach the flow channel body (3-1).
10. A quick-release runner apparatus as defined in claim 9, further comprising: the pressing block (4-1) is provided with an inclined locking surface (4-13) which is matched with the end part of the thread end of the locking screw (6).
11. The quick disconnect flow conduit device of claim 7, wherein: the locking unit further comprises a locking assembly, the locking assembly comprises a locking screw (6), the end part of the thread end of the locking screw (6) is a hemispherical surface, the locking screw (6) is in threaded connection with the valve body (1), a transmission rod (6-1) is arranged in the valve body (1) in a sliding mode, the end part of the thread end of the locking screw (6) is matched with one end of the transmission rod (6-1), and the other end of the transmission rod (6-1) is in contact with one side, away from the runner body (3-1), of the pressing block (4-1).
12. A quick-release flow conduit device as claimed in claim 2, wherein: the locking unit further comprises an auxiliary pre-tightening assembly (5), the auxiliary pre-tightening assembly (5) is provided with a elastically retractable tightening pin (5-1), when the runner body (3-1) rotates to a working position (8) from a loading position (7) along the installation direction, the runner body (3-1) can overcome the elasticity of the tightening pin (5-1) to force the tightening pin (5-1) to displace, and certain pre-tightening force is generated on the runner body (3-1) to enable the runner body (3-1) to be tightly abutted to the installation part (2) after the runner body (3-1) reaches the working position (8).
13. A quick-release flow conduit device as claimed in claim 12, wherein: the fastening pin (5-1) can simultaneously apply certain rotary resistance for preventing the runner body (3-1) from rotating along the disassembly direction to the runner body (3-1) at the working position (8).
14. A quick-release flow conduit device as claimed in claim 12, wherein: the auxiliary pre-tightening assembly (5) further comprises a second spring (5-2), a second mounting hole (102) matched with the tightening pin (5-1) is formed in the valve body (1), the tightening pin (5-1) is arranged in the second mounting hole (102) in a sliding mode and protrudes out of the end portion of the bottom end of the valve body (1), and the second spring (5-2) is arranged between the bottom of the second mounting hole (102) and the tightening pin (5-1).
15. A quick-release flow conduit device as claimed in claim 12, wherein: the valve is characterized in that a second strip-shaped limiting hole (5-11) is formed in the fastening pin (5-1), a second limiting rod (5-3) is inserted into the second strip-shaped limiting hole (5-11), and the second limiting rod (5-3) is fixed on the valve body (1).
16. A quick-release flow conduit device according to any one of claims 12 to 15, wherein: when the runner body (3-1) rotates to the working position (8) from the loading position (7), each side in contact with the fastening pin (5-1) is provided with a matching inclined surface (3-12) for contacting with the fastening pin (5-1), and the end part of one end of the fastening pin (5-1) in contact with the matching inclined surface (3-12) is a hemispherical surface.
17. A quick-release flow conduit device as claimed in claim 1, wherein: the locking unit comprises a locking screw (6) arranged on the mounting portion (2), the upper surface of the runner body (3-1) located at the working position (8) is in contact with the bottom surface of the valve body (1), the lower surface of the runner body (3-1) located at the working position (8) is in contact with the mounting portion (2), and the locking screw (6) is in threaded connection with the runner body (3-1) located at the working position (8).
18. A quick-release runner apparatus as defined in claim 1, 2, 3 or 17 wherein: the installation part (2) comprises a right side plate (2-1) fixed on the right side of the bottom surface of the valve body (1), a rear side plate (2-2) fixed on the rear side of the bottom surface of the valve body (1) and a bottom side plate (2-3) fixed at the bottom ends of the right side plate (2-1) and the rear side plate (2-2) in a relative mode, the runner body (3-1) in the working position (8) is located between the bottom side plate (2-3) and the valve body (1), a notch (2-31) used for being filled into the runner body (3-1) is formed in the bottom side plate (2-3), and the notch (2-31) is opposite to the push rod installation hole (1-1).
19. A quick-release flow conduit device as claimed in claim 1, wherein: the flow channel (3-11) in the flow channel body (3-1) is inclined upwards from left to right.
20. A piezoelectric injection valve characterized by: comprising a quick-release runner apparatus as claimed in any one of claims 1 to 19.
21. A point gum machine which characterized in that: comprising a piezoelectric injection valve as claimed in claim 20.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921157713.3U CN210411386U (en) | 2019-07-22 | 2019-07-22 | Glue dispenser, piezoelectric injection valve and quick assembling and disassembling type runner device of piezoelectric injection valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921157713.3U CN210411386U (en) | 2019-07-22 | 2019-07-22 | Glue dispenser, piezoelectric injection valve and quick assembling and disassembling type runner device of piezoelectric injection valve |
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| Publication Number | Publication Date |
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| CN210411386U true CN210411386U (en) | 2020-04-28 |
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| CN201921157713.3U Active CN210411386U (en) | 2019-07-22 | 2019-07-22 | Glue dispenser, piezoelectric injection valve and quick assembling and disassembling type runner device of piezoelectric injection valve |
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| CN (1) | CN210411386U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110252603A (en) * | 2019-07-22 | 2019-09-20 | 常州高凯精密技术股份有限公司 | Dispenser, piezo jet valve and its Quick-attachable flow passage device |
-
2019
- 2019-07-22 CN CN201921157713.3U patent/CN210411386U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110252603A (en) * | 2019-07-22 | 2019-09-20 | 常州高凯精密技术股份有限公司 | Dispenser, piezo jet valve and its Quick-attachable flow passage device |
| CN110252603B (en) * | 2019-07-22 | 2024-07-23 | 江苏高凯精密流体技术股份有限公司 | Dispensing machine, piezoelectric injection valve and quick assembly and disassembly type runner device thereof |
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