CN212072217U - Vacuum adsorption device on cutting drum in label cutting machine - Google Patents
Vacuum adsorption device on cutting drum in label cutting machine Download PDFInfo
- Publication number
- CN212072217U CN212072217U CN202020225877.1U CN202020225877U CN212072217U CN 212072217 U CN212072217 U CN 212072217U CN 202020225877 U CN202020225877 U CN 202020225877U CN 212072217 U CN212072217 U CN 212072217U
- Authority
- CN
- China
- Prior art keywords
- valve
- valve core
- negative pressure
- port
- label
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn - After Issue
Links
- 238000005520 cutting process Methods 0.000 title claims abstract description 115
- 238000001179 sorption measurement Methods 0.000 title claims abstract description 29
- 238000007789 sealing Methods 0.000 claims description 9
- 238000004891 communication Methods 0.000 claims description 5
- 235000008331 Pinus X rigitaeda Nutrition 0.000 abstract description 4
- 235000011613 Pinus brutia Nutrition 0.000 abstract description 4
- 241000018646 Pinus brutia Species 0.000 abstract description 4
- 230000003247 decreasing effect Effects 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
Images
Landscapes
- Labeling Devices (AREA)
Abstract
The utility model discloses a vacuum adsorption device on cutting drum among label cutting machine, include: a plurality of gas channels are arranged in the drum body of the cutting drum, the gas channels correspond to the negative pressure holes in each row one by one, each row of negative pressure holes is connected with one corresponding gas channel, and each gas channel is communicated with the negative pressure device through one valve; under the action of the negative pressure device, when any row of negative pressure holes are covered with the label, the valve core corresponding to the row of negative pressure holes moves towards the direction far away from the valve port so that the valve cavity is communicated with the valve port; under the action of the negative pressure device, when no label is arranged on any row of negative pressure holes, pressure difference is formed on two sides of the valve core corresponding to the row of negative pressure holes, and the valve core moves towards the valve port direction, so that the valve cavity and the valve port are closed. This practical advantage lies in: the stability of carrying in the label cutting process has been improved greatly, effectively avoids the pine phenomenon to take place to provide reliable guarantee for the smooth cutting of label.
Description
Technical Field
The utility model relates to a equipment for packing technical field, concretely relates to cutting drum in label cutting machine.
Background
The label cutting machine mainly comprises: the cutting drum comprises a cutting drum, a cutting knife and a conveying roller, wherein a plurality of anvil strips are arranged on a drum body of the cutting drum at intervals, a negative pressure adsorption area for adsorbing labels is further arranged on the drum body of the cutting drum, a plurality of rows of negative pressure holes are formed in the surface of the drum body of the cutting drum in the negative pressure adsorption area, the negative pressure holes are arranged in the circumferential direction of the drum body of the cutting drum at intervals, each row of negative pressure holes are arranged in the axial direction parallel to the cutting drum at intervals, the negative pressure holes are communicated with a gas channel in the drum body of the cutting drum, and the gas channel is communicated with a negative pressure device and a compressed gas source respectively.
When cutting the labels, successive labels are conveyed onto the cutting drum by a conveying roller, and the labels are adsorbed in a negative pressure adsorption area of the cutting drum and conveyed forwards along with the rotation of the cutting drum. In order to realize cutting, a speed difference is generated between the cutting drum and the conveying roller, so that the labels slide backwards for a certain distance relative to the cutting drum, and the cutting area between two adjacent labels is overlapped with the anvil strips on the cutting drum for cutting.
However, in long-term production it was found that: the relative cutting drum slides backward before the label is cut and makes the negative pressure hole of label front end and atmosphere be linked together, and this can lead to vacuum to descend to influence label vacuum adsorption's stability, the label is loosen easily from the cutting drum.
SUMMERY OF THE UTILITY MODEL
The technical problem that this practicality needs to solve is: the utility model provides a vacuum adsorption device on cutting drum in label cutting machine, its negative pressure adsorption affinity is stable to can effectively avoid the label pine phenomenon of taking off to take place.
In order to solve the above problem, the technical scheme adopted in the utility model is as follows: vacuum adsorption device on cutting drum in label cutting machine includes: the cutting drum comprises a negative pressure adsorption area arranged on a cutting drum body, wherein the negative pressure adsorption area is provided with a plurality of rows of negative pressure holes, the negative pressure holes in each row are arranged at intervals along the circumferential direction of the cutting drum body, the negative pressure holes in each row are arranged at intervals in the direction parallel to the axis of the cutting drum, a plurality of gas channels are arranged in the cutting drum body, the gas channels correspond to the negative pressure holes in each row one by one, each row of negative pressure holes are connected with one corresponding gas channel, and each gas channel is communicated with a negative pressure device through one valve; each valve is constructed to include: the valve seat is provided with a valve port at the outer end part, the valve port is connected with the negative pressure device, a valve core is arranged in the valve seat, the valve core is hollow to form a valve core channel, the inner diameter of the valve core channel is gradually reduced from a gas channel to the direction of the valve port, ports at two ends of the valve core channel are respectively in normal communication with the gas channel and the valve port, the caliber of the valve port is larger than that of the valve core channel port at the end which is in normal communication with the valve port, a valve cavity communicated with the valve port is arranged between the valve core and the valve seat, a valve core hole communicated with the valve core channel is arranged on the valve core, the valve core channel is communicated with the valve cavity through the valve core hole, and the valve; an elastic component is arranged between the valve core and the valve seat, and the elastic component always has the tendency of enabling the valve core to be far away from the valve port and enabling the valve cavity to be communicated with the valve port; under the action of the negative pressure device, when any row of negative pressure holes are covered with the label, after the vacuum degrees of two sides of the valve core corresponding to the row of negative pressure holes are consistent, under the action of the elastic component, the valve core corresponding to the row of negative pressure holes moves towards the direction far away from the valve port so that the valve cavity is communicated with the valve port; under the action of the negative pressure device, when no label is arranged on any row of negative pressure holes, the row of negative pressure holes are communicated with the atmosphere, so that the pressure in the corresponding gas channel is greater than the pressure at the valve port, and pressure difference is formed on two sides of the corresponding valve core, so that the valve core moves towards the direction of the valve port, and the valve cavity and the valve port are closed.
Further, in the vacuum adsorption device on the cutting drum in the label cutting machine, the valve core channel is divided into a first section of valve core channel, a second section of valve core channel and a third section of valve core channel which are sequentially communicated towards the valve port direction and have gradually reduced inner diameters from the gas channel, the first section of valve core channel is normally communicated with the gas channel, the third section of valve core channel is normally communicated with the valve port, and the caliber of the valve port is larger than that of an outer port of the third section of valve core channel.
Furthermore, in the vacuum adsorption device on the cutting drum in the label cutting machine, a plurality of valve core holes are formed in the valve core, and the valve core holes are communicated with the second section of valve core channel.
Further, in the vacuum adsorption device on the cutting drum in the label cutting machine, a clamping groove is formed in the outer wall of one end, close to the valve port, of the valve core, a sealing ring is arranged in the clamping groove, and a conical opening with the caliber gradually reduced from the valve cavity to the valve port is formed in the inner side of the valve port of the valve seat; the valve core moves in the valve cavity towards the valve port until the sealing ring is sealed and blocked on the inner wall of the cone port, so that the valve cavity and the valve port are closed; the valve core moves in the direction far away from the valve port in the valve cavity so that the sealing ring is separated from the inner wall of the cone port and the valve cavity is communicated with the valve port.
Further, in the vacuum adsorption device on the cutting drum in the label cutting machine, the elastic component is a spring, at least two springs are arranged between the valve core and the valve seat at intervals, a spring seat is arranged on the outer side wall of one end, close to the gas channel, of the valve core, and two ends of each spring are respectively pressed and blocked on the spring seat of the valve core and the inner wall of the valve seat.
Further, in the vacuum adsorption device on the cutting drum in the label cutting machine, a filter screen is arranged between the valve seat and the gas channel.
Further, in the vacuum suction device on the cutting drum of the label cutting machine, the valve seat is arranged at one end in the drum body of the cutting drum.
Still further, in the vacuum adsorption device on the cutting drum in the label cutting machine, a clamping ring is arranged at the outer end of the valve seat, and the valve seat is blocked and fixed in the cutting drum by the clamping ring.
Further, in the vacuum adsorption device on the cutting drum of the label cutting machine, each gas channel is arranged parallel to the axis of the cutting drum.
This practical advantage lies in: the cutting drum remains stable to the adsorption affinity of label all the time, and the relative cutting drum of label produces the relative slip back, can not produce great fluctuation because of one or multiseriate negative pressure hole and the air intercommunication of label front end, and this has improved the stability of carrying in the label cutting process greatly, effectively avoids the pine to take off the phenomenon and takes place to provide reliable guarantee for the smooth cutting of label.
Drawings
Fig. 1 is a schematic view of a cutting drum in a label cutting machine.
Fig. 2 is a schematic structural view of a vacuum adsorption device on a cutting drum in the label cutting machine according to the present invention.
Fig. 3 is an enlarged view of the valve of fig. 2 connected to a gas passage.
Detailed Description
The present invention will be described in further detail with reference to the following drawings and preferred embodiments.
As shown in fig. 1, 2 and 3, the vacuum adsorption device on the cutting drum of the label cutting machine includes: the negative pressure adsorption area 2 is arranged on the drum body of the cutting drum 1, a plurality of rows of negative pressure holes 3 are formed in the negative pressure adsorption area 2, the negative pressure holes 3 in each row are arranged at intervals along the circumferential direction of the drum body of the cutting drum 1, and the negative pressure holes 3 in each row are arranged at intervals in the direction parallel to the axis of the cutting drum 1. A plurality of gas channels 4 are arranged in the body of the cutting drum 1, and each gas channel 4 is arranged in parallel with the axis of the cutting drum 1. The gas channels 4 correspond to the negative pressure holes 3 in each row one by one, each row of negative pressure holes 3 is connected with one corresponding gas channel 4, and each gas channel 4 is communicated with the negative pressure device through one valve 5. In the present embodiment, each valve seat 5 is provided at one end in the drum body of the cutting drum 1. The outer end part of the valve seat 5 is provided with a clamping ring 6, and the valve seat 5 is blocked and fixed in the drum body of the cutting drum 1 by the clamping ring 6. In order to prevent impurities in the air from damaging the valve 5 and the underpressure device, a sieve 7 is arranged between the valve seat 5 and the gas channel 4.
The structure of each valve 5 comprises: the outer end part is provided with a valve seat 51 of the valve port 511, the valve port 511 is connected with a negative pressure device, a valve core 52 is arranged in the valve seat 51, a valve core channel 521 is formed in the valve core 52 in a hollow mode, the inner diameter of the valve core channel 521 is gradually reduced from the gas channel 4 to the direction of the valve port 511, ports at two ends of the valve core channel 521 are respectively in normal communication with the gas channel 4 and the valve port 511, and the caliber of the valve port 511 is larger than that of the valve core channel 521 at the end which. In this embodiment, the valve core passage 521 is divided into a first section of valve core passage 5211, a second section of valve core passage 5212 and a third section of valve core passage 5213 from the gas passage 4 to the valve port 511, which are sequentially communicated and have gradually decreasing inner diameters, the first section of valve core passage 5211 is normally communicated with the gas passage 4, the third section of valve core passage 5213 is normally communicated with the valve port 511, and the aperture of the valve port 511 is larger than that of the third section of valve core passage 5213.
A valve cavity 50 communicated with the valve port 511 is arranged between the valve core 52 and the valve seat 51, a plurality of valve core holes 522 communicated with the valve core channel 521 are arranged on the valve core 52, and the number and the aperture of the valve core holes 522 can be determined according to actual requirements. The spool passage 521 communicates with the valve chamber 50 through the spool bore 522. In this embodiment, the valve core hole 522 is formed in the valve core 52 at a position corresponding to the second-stage valve core passage 5212, and the valve core hole 522 is communicated with the second-stage valve core passage 5212.
The valve body 52 can move in the valve chamber 50 toward the valve port 511 to close the valve chamber 50 from the valve port 511, or can move away from the valve port 511 to connect the valve chamber 50 with the valve port 511. A clamping groove 523 is arranged on the outer wall of one end of the valve core 52 close to the valve port 511, a sealing ring 524 is arranged in the clamping groove 523, and a taper port 512 with the caliber gradually reduced from the valve cavity 50 to the valve port 511 is arranged on the inner side of the valve port 511 of the valve seat 51. The valve core 52 moves in the valve cavity 50 towards the valve port 511 until the sealing ring 524 is sealed and blocked on the inner wall of the cone port 512, so that the valve cavity 50 is closed off from the valve port 511; the valve core 52 moves in the valve chamber 50 away from the valve port 511 to make the sealing ring 524 disengage from the inner wall of the cone port 512, so that the valve chamber 50 communicates with the valve port 511.
An elastic member is provided between the valve element 52 and the valve seat 51, and the elastic member always tends to separate the valve element 52 from the valve port 511 and to communicate the valve chamber 50 with the valve port 511. In this embodiment, the elastic component is a spring 53, at least two springs 53 are arranged between the valve core 52 and the valve seat 51 at intervals, a spring seat 525 is arranged on the outer side wall of one end of the valve core 52 close to the gas passage 4, and two ends of each spring 53 are respectively pressed and stopped on the spring seat 525 of the valve core 52 and the inner wall of the valve seat 51.
Under the action of the negative pressure device, when any row of negative pressure holes 3 are covered with the labels 8, after the vacuum degrees at two sides of the valve core 52 corresponding to the row of negative pressure holes 3 are consistent, under the action of the spring 53, the valve core 52 corresponding to the row of negative pressure holes 3 moves towards the direction far away from the valve port 511, so that the valve cavity 50 is communicated with the valve port 511.
Under the action of the negative pressure device, when no label is located on any row of negative pressure holes 3, the row of negative pressure holes 3 is communicated with the atmosphere, so that the pressure in the corresponding gas channel 4 is greater than the pressure at the valve port 511, and a pressure difference is formed between two sides of the corresponding valve element 52, so that the valve element 52 moves towards the valve port 511, and the valve cavity 50 is closed off from the valve port 511.
The working principle is as follows: when the cutting drum 1 is in label cutting operation, under the action of a negative pressure device, the label 8 is adsorbed in the negative pressure area 2 on the cutting drum 1, the vacuum degrees of the two sides of the valve core 52 corresponding to each row of negative pressure holes 3 covered by the label are consistent, and under the action of the spring 53, the valve core 52 corresponding to each row of negative pressure holes 3 moves towards the direction far away from the valve port 511, so that the valve cavity 50 is communicated with the valve port 511 and is kept in the state, the gas in the gas channel 4 enters the valve port 511 from the third section valve core channel 5213 and enters the valve port 511 through the valve core hole 522 via the valve cavity 50, and the vacuum gas is discharged in a multi-channel mode, so that the vacuum degree of each row of negative pressure holes 3 covered by the label is consistent with the valve port 511, the label can be reliably adsorbed on the cutting drum 1, and the label is ensured to be.
Once the label slips on the cutting drum 1 and moves relative to the cutting drum 1, so that the partial rows of the negative pressure holes 3 at the front end of the label 8 are communicated with the air, at this time, the pressure in the gas channel 4 corresponding to each row of the negative pressure holes 3 without the label is greater than the pressure at the valve port 511, because the negative pressure device is always vacuumizing the gas channel 4, and the inner diameter of the valve core channel 521 is gradually reduced from the gas channel 4 to the direction of the valve port 511, a pressure difference is formed on two sides of the valve core 52 corresponding to the row of the negative pressure holes without the label, so that the valve core 52 moves towards the direction of the valve port 511, and the valve cavity 50 is closed off from the valve port 511. The valve cavity 50 is closed to the valve port 511, so that the air in the air passage 4 corresponding to the negative pressure hole 3 without the label can be discharged only from the third segment valve core passage 5213 of the valve core passage 521, the air flow rate is greatly reduced, the change of the vacuum degree in the rest negative pressure holes covered by the label can be effectively reduced, the adsorption force of the negative pressure holes covered by the label is kept stable, and the label is ensured not to be loosened from the cutting drum 1 in the whole cutting and conveying process.
This practical advantage lies in: the cutting drum 1 remains stable to the adsorption affinity of label 8 throughout, can not produce great fluctuation because label 8 relative cutting drum 1 produces the relative slip back, one or multiseriate negative pressure hole and the air intercommunication of label front end, and this has improved the stability of carrying among the label cutting process greatly, effectively avoids the pine to take off the phenomenon and takes place to provide reliable guarantee for the smooth cutting of label.
Claims (9)
1. Vacuum adsorption device on cutting drum in label cutting machine includes: the negative pressure adsorption zone of setting on the cutting drum body, a plurality of rows of negative pressure holes have been seted up in negative pressure adsorption zone, and each row of negative pressure hole is along the drum body circumference interval arrangement of cutting drum, and the negative pressure hole in each row interval arrangement in the direction that is on a parallel with cutting drum axis, its characterized in that: a plurality of gas channels are arranged in the drum body of the cutting drum, the gas channels correspond to the negative pressure holes in each row one by one, each row of negative pressure holes is connected with one corresponding gas channel, and each gas channel is communicated with the negative pressure device through one valve; each valve is constructed to include: the valve seat is provided with a valve port at the outer end part, the valve port is connected with the negative pressure device, a valve core is arranged in the valve seat, the valve core is hollow to form a valve core channel, the inner diameter of the valve core channel is gradually reduced from a gas channel to the direction of the valve port, ports at two ends of the valve core channel are respectively in normal communication with the gas channel and the valve port, the caliber of the valve port is larger than that of the valve core channel port at the end which is in normal communication with the valve port, a valve cavity communicated with the valve port is arranged between the valve core and the valve seat, a valve core hole communicated with the valve core channel is arranged on the valve core, the valve core channel is communicated with the valve cavity through the valve core hole, and the valve; an elastic component is arranged between the valve core and the valve seat, and the elastic component always has the tendency of enabling the valve core to be far away from the valve port and enabling the valve cavity to be communicated with the valve port; under the action of the negative pressure device, when any row of negative pressure holes are covered with the label, after the vacuum degrees of two sides of the valve core corresponding to the row of negative pressure holes are consistent, under the action of the elastic component, the valve core corresponding to the row of negative pressure holes moves towards the direction far away from the valve port so that the valve cavity is communicated with the valve port; under the action of the negative pressure device, when no label is arranged on any row of negative pressure holes, the row of negative pressure holes are communicated with the atmosphere, so that the pressure in the corresponding gas channel is greater than the pressure at the valve port, and pressure difference is formed on two sides of the corresponding valve core, so that the valve core moves towards the direction of the valve port, and the valve cavity and the valve port are closed.
2. The vacuum suction device on the cutting drum in the label cutting machine according to claim 1, characterized in that: the valve core channel is divided into a first section of valve core channel, a second section of valve core channel and a third section of valve core channel which are communicated in sequence towards the valve port direction by the gas channel and have gradually reduced inner diameters, the first section of valve core channel is normally communicated with the gas channel, the third section of valve core channel is normally communicated with the valve port, and the caliber of the valve port is larger than that of an outer port of the third section of valve core channel.
3. The vacuum suction device on the cutting drum in the label cutting machine according to claim 2, characterized in that: the valve core is provided with a plurality of valve core holes which are communicated with the second section of valve core channel.
4. Vacuum suction device on a cutting drum in a label cutting machine according to claim 1 or 2 or 3, characterized in that: a clamping groove is formed in the outer wall of one end, close to the valve port, of the valve core, a sealing ring is arranged in the clamping groove, and a conical opening with the caliber gradually reduced from the valve cavity to the valve port is formed in the inner side of the valve port of the valve seat; the valve core moves in the valve cavity towards the valve port until the sealing ring is sealed and blocked on the inner wall of the cone port, so that the valve cavity and the valve port are closed; the valve core moves in the direction far away from the valve port in the valve cavity so that the sealing ring is separated from the inner wall of the cone port and the valve cavity is communicated with the valve port.
5. Vacuum suction device on a cutting drum in a label cutting machine according to claim 1 or 2 or 3, characterized in that: the elastic part is a spring, at least two springs are arranged between the valve core and the valve seat at intervals, a spring seat is arranged on the outer side wall of one end, close to the gas channel, of the valve core, and two ends of each spring are respectively pressed and blocked on the spring seat of the valve core and the inner wall of the valve seat.
6. Vacuum suction device on a cutting drum in a label cutting machine according to claim 1 or 2 or 3, characterized in that: a filter screen is arranged between the valve seat and the gas channel.
7. Vacuum suction device on a cutting drum in a label cutting machine according to claim 1 or 2 or 3, characterized in that: the valve seat is arranged at one end in the drum body of the cutting drum.
8. The vacuum suction device on the cutting drum in the label cutting machine according to claim 7, characterized in that: the outer end part of the valve seat is provided with a clamping ring, and the valve seat is blocked and fixed in the cutting drum by the clamping ring.
9. Vacuum suction device on a cutting drum in a label cutting machine according to claim 1 or 2 or 3, characterized in that: each gas channel is arranged parallel to the axis of the cutting drum.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020225877.1U CN212072217U (en) | 2020-02-28 | 2020-02-28 | Vacuum adsorption device on cutting drum in label cutting machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020225877.1U CN212072217U (en) | 2020-02-28 | 2020-02-28 | Vacuum adsorption device on cutting drum in label cutting machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212072217U true CN212072217U (en) | 2020-12-04 |
Family
ID=73560266
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020225877.1U Withdrawn - After Issue CN212072217U (en) | 2020-02-28 | 2020-02-28 | Vacuum adsorption device on cutting drum in label cutting machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212072217U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111230998A (en) * | 2020-02-28 | 2020-06-05 | 江苏新美星包装机械股份有限公司 | Vacuum adsorption device on cutting drum in label cutting machine |
-
2020
- 2020-02-28 CN CN202020225877.1U patent/CN212072217U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111230998A (en) * | 2020-02-28 | 2020-06-05 | 江苏新美星包装机械股份有限公司 | Vacuum adsorption device on cutting drum in label cutting machine |
| CN111230998B (en) * | 2020-02-28 | 2024-06-07 | 江苏新美星包装机械股份有限公司 | Vacuum adsorption device on cutting drum in label cutting machine |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN200992611Y (en) | Bobbin gripper for spinning frame | |
| CN212072217U (en) | Vacuum adsorption device on cutting drum in label cutting machine | |
| CN104942326B (en) | A kind of front-mounted pneumatic chuck | |
| CN111230998A (en) | Vacuum adsorption device on cutting drum in label cutting machine | |
| CN108217340A (en) | Cutting machine air heave type winding chuck | |
| CN104970920A (en) | Waist-surrounding straight transposition wheel adsorbing air chamber structure | |
| CN202389979U (en) | Pneumatic nozzle on paper separator of single-paper feeding machine | |
| CA2525308A1 (en) | Filter cigarette inspection apparatus and inspection method | |
| CN105351600A (en) | Pneumatic valve using air cylinder as actuator | |
| CN203902898U (en) | External air-suction-control cigarette-label-paper picking device | |
| CN214305517U (en) | Slide valve control assembly and electromagnetic pulse valve using same | |
| CN215287393U (en) | Adhesive tape cutting device | |
| CN214839151U (en) | Automobile pipeline straight-through quick-insertion male joint with non-return structure | |
| CN216902794U (en) | Atmospheric pressure environment maintains structure and scanning electron microscope | |
| CN211254938U (en) | Vacuum suction tool for falling part detection | |
| CN208816082U (en) | A kind of automatic packer in oil field | |
| CN210882849U (en) | Lining paper air suction conveying structure in cigarette packaging machine | |
| CN209890231U (en) | Grease filling valve | |
| CN211243140U (en) | Sliding type sucker capable of prolonging service life | |
| CN202344986U (en) | Multi-channel composite suction head | |
| CN203146901U (en) | Reversing valve for air compressor | |
| CN207261342U (en) | hybrid power source device | |
| CN111069947A (en) | Universal split vacuum reducing suction tool | |
| CN212718063U (en) | Pressure regulating device of air exhaust tire pressure gun | |
| CN217414038U (en) | Pneumatic manipulator for pipe sleeve film |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20201204 Effective date of abandoning: 20240607 |
|
| AV01 | Patent right actively abandoned |
Granted publication date: 20201204 Effective date of abandoning: 20240607 |