CN213165840U - Timber saw cuts correcting unit and preferred saw - Google Patents
Timber saw cuts correcting unit and preferred saw Download PDFInfo
- Publication number
- CN213165840U CN213165840U CN202021453546.XU CN202021453546U CN213165840U CN 213165840 U CN213165840 U CN 213165840U CN 202021453546 U CN202021453546 U CN 202021453546U CN 213165840 U CN213165840 U CN 213165840U
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- 239000002023 wood Substances 0.000 claims abstract description 91
- 238000006073 displacement reaction Methods 0.000 claims abstract description 45
- 238000005259 measurement Methods 0.000 claims abstract description 39
- 238000001514 detection method Methods 0.000 claims abstract description 33
- 238000012937 correction Methods 0.000 claims abstract description 26
- 238000005520 cutting process Methods 0.000 claims description 10
- 230000033001 locomotion Effects 0.000 abstract description 4
- 238000000034 method Methods 0.000 description 10
- 230000001360 synchronised effect Effects 0.000 description 8
- 239000002184 metal Substances 0.000 description 6
- 230000005540 biological transmission Effects 0.000 description 4
- 238000007599 discharging Methods 0.000 description 4
- 238000012360 testing method Methods 0.000 description 4
- 238000003754 machining Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 238000000691 measurement method Methods 0.000 description 2
- 238000003825 pressing Methods 0.000 description 2
- 238000012951 Remeasurement Methods 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000009347 mechanical transmission Effects 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Images
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
- B27B—SAWS FOR WOOD OR SIMILAR MATERIAL; COMPONENTS OR ACCESSORIES THEREFOR
- B27B13/00—Band or strap sawing machines; Components or equipment therefor
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
- B27B—SAWS FOR WOOD OR SIMILAR MATERIAL; COMPONENTS OR ACCESSORIES THEREFOR
- B27B13/00—Band or strap sawing machines; Components or equipment therefor
- B27B13/16—Accessories, e.g. for cooling the saw blade
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
- B27B—SAWS FOR WOOD OR SIMILAR MATERIAL; COMPONENTS OR ACCESSORIES THEREFOR
- B27B27/00—Guide fences or stops for timber in saw mills or sawing machines; Measuring equipment thereon
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- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Wood Science & Technology (AREA)
- Forests & Forestry (AREA)
- Dovetailed Work, And Nailing Machines And Stapling Machines For Wood (AREA)
Abstract
A kind of timber saw cuts the correcting unit and optimizes the saw, the correcting unit of the timber saw cuts and includes detecting element and control unit; the detection unit comprises a driving positioning unit, a non-contact displacement measurement unit and a detection calculation unit, the non-contact displacement measurement unit is arranged on the driving positioning unit, the detection calculation unit is configured to calculate an error value after the sawing length of the wood runs according to the measurement result of the non-contact displacement measurement unit, the control unit is configured to control the driving positioning unit to drive the non-contact displacement measurement unit to move, receive the detection signal of the detection unit and transmit the detection signal to a control system of the optimized saw; the wood sawing correction device is arranged at the discharge end of the optimized saw, and the movement direction of the driving positioning unit for driving the non-contact displacement measurement unit to move is parallel to the running path of the wood. The utility model discloses a non-contact displacement measurement unit revises after obtaining the error value of timber operation, has solved the not high problem of wood working precision.
Description
Technical Field
The utility model relates to a timber saw cuts correcting unit and preferred saw belongs to wood working technical field.
Background
The current preferred saw on the market is as timber rough machining equipment, and the general problem that machining precision is not high exists, hardly reaches the precision of 0.5mm when saw cutting. The reason is the machining error of the mechanical transmission device; secondly, there is no reliable measuring means to measure the actual sawing length accurately and then perform compensation correction.
At present, the sawing length measurement mode is generally contact measurement, namely a metal pressure wheel is arranged at a feeding position of an optimized saw, an encoder is arranged behind the metal pressure wheel, the metal pressure wheel presses wood, the metal pressure wheel is completely driven by the wood, and the length of the sawed wood is calculated according to the feedback value of the encoder and the circumference of the metal pressure wheel. However, the unevenness of the surface of the wood can cause errors, so that the method for measuring the length of the wood is inaccurate and cannot stably achieve high precision, and in addition, the pressure applied by the metal pressing wheel to the wood can cause the length of the wood to change, thereby further reducing the measurement accuracy.
For example, the preferred saws for typical belt-fed wood are all measured and fed in the feed direction, with the accuracy controlled at the feed end with an average tolerance of ± 1.5 mm. Under the condition of high precision requirement of cabinets, photo frames and the like, the requirement of customers is difficult to meet.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the technical problem that lie in to prior art not enough, provide a timber saw cuts correcting unit and preferred saw, revise after the error value that acquires timber operation through non-contact displacement measurement unit, perfect solution the not high problem of wood working precision, through the test in a large number of mills, the precision can be stably improved within 0.5mm, let preferred saw become for the equipment that the process velocity is fast and the precision is high.
The utility model discloses the technical problem that solve is realized through following technical scheme:
the utility model provides a timber sawing and correcting device, which comprises a detection unit and a control unit; the detection unit comprises a driving positioning unit, a non-contact displacement measurement unit and a detection calculation unit, the non-contact displacement measurement unit is arranged on the driving positioning unit, the detection calculation unit is configured to calculate an error value after the wood runs and is sawed according to the measurement result of the non-contact displacement measurement unit, the control unit is configured to control the driving positioning unit to drive the non-contact displacement measurement unit to move, receive the detection signal of the detection unit and transmit the detection signal to a control system of a preferred saw;
the wood sawing correction device is arranged at the discharge end of the optimized saw, and the driving and positioning unit drives the non-contact displacement measurement unit to move in a direction parallel to the running path of the wood.
In order to move the non-contact displacement measuring unit to the working position, the driving and positioning unit is a mechanical arm, a rocker device or a sliding table.
Because the synchronous belt sliding table has the characteristics of quick response, high speed and the like, the sliding table is preferably the synchronous belt sliding table.
In order to accurately measure the error value, the precision of the synchronous belt sliding table is 0.1 mm.
In order to obtain an error value, the non-contact displacement measurement unit is a displacement sensor or a camera. The precision of the camera is 0.019 mm.
Preferably, the drive positioning unit is disposed at a side of or above a running path of the wood.
In order to ensure the measuring efficiency, the distance between the initial position of the non-contact displacement measuring unit and the saw kerf of the optimized saw is more than 600 mm.
The non-contact displacement measuring unit is located at a position corresponding to the sawing length when measuring.
The utility model also provides an optimal saw, the discharge end of optimal saw is provided with as above timber saw cuts correcting unit.
To sum up, the utility model discloses a revise after non-contact displacement measurement unit acquires the error value of timber operation, perfect solution the not high problem of wood working precision, through the test in a large number of mills, the precision can stably improve to within 0.5mm, let preferred saw become for the equipment that the process velocity is fast and the precision is high.
The technical solution of the present invention will be described in detail with reference to the accompanying drawings and specific embodiments.
Drawings
FIG. 1 is a schematic view of a preferred saw of the present invention;
FIG. 2 is a partial block diagram of a preferred saw of the present invention;
fig. 3 is a schematic structural view of the wood sawing and correcting device of the present invention.
Detailed Description
FIG. 1 is a schematic view of a preferred saw of the present invention; FIG. 2 is a partial block diagram of a preferred saw of the present invention; fig. 3 is a schematic structural view of the wood sawing and correcting device of the present invention. The utility model provides a wood sawing correction device 400, wherein the wood sawing correction device 400 comprises a detection unit and a control unit; the detection unit comprises a driving positioning unit 410, a non-contact displacement measuring unit 420 arranged on the driving positioning unit 410 and a detection calculating unit, the detection calculating unit is configured to calculate an error value after the wood runs for the sawing length according to the measurement result of the non-contact displacement measuring unit 420, namely a difference value between the actual moving length and the sawing length, and the control unit is configured to control the driving positioning unit to drive the non-contact displacement measuring unit to move, receive a detection signal of the detection unit and transmit the detection signal to a control system of the preferred saw.
The preferred saw includes a scoring station 100, a measuring station 200, a preferred saw mainframe 300, a sorting kick leg 500, and a control system, among other things. The control system is electrically connected to the control unit of the wood-sawing correction device 400.
Since the surface of the wood is sometimes scratched or has a color difference, a worker marks the upper surface of the wood with a highlighter or the like (a chalk containing a fluorescent substance) on the scribing table 100 according to the use, thereby dividing the wood into different quality grade lengths.
The timber then passes through a measuring station 200 where each length of timber is measured (the entire length of timber if not marked with fluorescence) and the measured length is optimised by the control system to form data on the required sawing length for each timber.
The wood is then run into the preferred saw main body 300 for the plunge cut. The sawing process is that the wood firstly runs for a section of sawing length, after the sawing process is stopped, the saw blade at the saw cut 310 is lifted up for cutting, the saw blade falls down after the cutting is finished, the wood runs for the section of sawing length again, and the process is repeated. The run for a sawing length can be achieved by a photosensor 320 in the preferred saw main unit 300 and a feed servo system. Specifically, after the wood enters the preferred saw main body 300, the pressing wheel presses the wood, the feeding servo system enables the wood to move forwards (in the direction from feeding to discharging), the photoelectric sensor 320 senses the wood in the moving process, and the distance between the photoelectric sensor 320 and the saw kerf 310 is a fixed value S. For example, the length to be sawn of the first section of wood is L1, when the photoelectric sensor 320 senses that the wood is moved forward by S + L1, the wood is stopped, and then sawing is performed, the sawn length is L1, wherein S + L1 is the sawn length of the first section of wood. Similarly, regarding the second sawing lengths L2, L.. and the nth sawing length Ln, the wood is moved further L2, L.. and Ln lengths before sawing, wherein L2, L.. and Ln are respectively the 2 nd to nth sawing lengths.
After the sawing is finished, the wood is taken out by a discharging transmission body (such as a discharging belt) of the preferred saw main body 300, and then is kicked out by the sorting kicking legs 500.
The preferred saw and its operation are prior art and therefore not described in detail herein.
The conventional preferred saw does not effectively measure the sawing length after the wood has moved. For example, when a section of wood with a length of 2000mm is to be sawed, the control system controls the feeding servo motor 330 to move the wood forward to 2000mm, but due to the mechanical error of the transmission system and the slipping of the wood, the actual moving length is in error with 2000mm, and the traditional contact measurement cannot perform effective measurement due to the unevenness of the wood surface, so that the error value cannot be accurately corrected.
The utility model discloses in, timber saw cuts correcting unit 400 and installs the discharge end of preferred saw, just drive positioning unit 410 drives the direction of motion of non-contact displacement measurement unit motion is parallel with ligneous traffic route. The non-contact displacement measurement unit is a displacement sensor or a camera, and the displacement sensor is, for example, a diffuse reflection sensor or a displacement sensor. In the present invention, a non-contact displacement measuring unit is described as an example of a camera. The detection calculation unit may be implemented by a microcomputer or a controller or the like.
The driving positioning unit 410 may be a robot arm, a rocker device, or a sliding platform. The sliding table is a gear rack sliding table or a synchronous belt sliding table and is used for driving the non-contact displacement measuring unit to a working position, so that the error value is measured. In the present invention, the drive positioning unit 410 is described as an example of a timing belt sliding table. The synchronous belt sliding table comprises a synchronous belt, a motor, a guide rail, a sliding block and the like arranged on the guide rail. The camera may be fixed to the slider by means of bonding, bolting, welding, or the like.
In order to ensure the measurement precision of the wood sawing correction device 400, the precision of the synchronous belt sliding table is preferably 0.1mm, and the precision of the camera is preferably 0.019 mm.
The utility model discloses do not restrict the sliding distance of hold-in range slip table, the suitable hold-in range slip table of field technical personnel can be selected according to waiting to saw cut ligneous length. In order to secure the measurement efficiency of the wood-sawing correction device 400, the distance between the initial position of the non-contact displacement measurement unit 420 (camera) and the saw kerf 310 is preferably 600mm or more.
The detection calculation unit may be implemented using existing image processing techniques to calculate an error value after the running sawing length of the wood from the image taken by the camera. For example, when the preferred saw controls the running sawing length of the wood, the control system of the preferred saw transmits the sawing length to the control unit of the wood sawing correction device 400, and the control unit controls the driving and positioning unit 410 to move the camera to the theoretical position of the end of the wood to be sawed far away from the saw kerf 310 according to the sawing length, and the shooting center of the camera and the theoretical position of the end of the wood coincide. Then the camera shoots, and the imaged wood image obtains the edge coordinate of the end head of the wood through the gray level and the outline difference (the wood is generally yellow white) with the background. Because the pixels of the image correspond to the actual length, the pixel difference from the center of the image to the edge of the end of the wood can be converted into the actual length, and the actual length is an error value. When the non-contact displacement measurement unit 420 is a diffuse reflection sensor or a displacement sensor, the measurement method thereof may be a measurement method in the prior art, and will not be described herein again.
The driving position unit 410 is disposed at a side or above the wood running path, and the non-contact displacement measuring unit 420 is disposed at a side or above the wood running path.
Specifically, when the camera is disposed above the wood running path, the camera photographs the end of the wood far away from the saw kerf 310. In order to obtain the error value more accurately, the color of the discharging conveyor under the wood is set to be a color which is different from the color of the wood, such as black, blue or green. When the camera is arranged at the side of the wood running path, a background plate (black, blue, green or the like) is arranged at the position of the camera across the wood, so that the wood and the background can be more easily distinguished in the image taken by the camera. The utility model discloses do not restrict the camera with the concrete position of timber traffic route, technical field personnel can modify the design according to actual need.
It is added that sawing by the saw, feeding transmission and the like are preferably carried out in millisecond response and high speed. The utility model discloses can for example adopt current instant messaging protocol to carry out data transmission between well timber saw cuts correcting unit's the control unit and the control system of preferred saw, and the error value is several millimeters generally, so preferred saw just can accomplish the correction of error value in the millisecond level under the prerequisite of speed of movement itself, hardly reduces preferred saw speed itself.
The utility model also provides an optimal saw, the discharge end of optimal saw is provided with as above timber saw cuts correcting unit. The control system of the preferred saw corrects the position of the wood based on the detection signal of the wood sawing correction device.
The utility model discloses in, timber saw cuts correcting unit sets up the discharge end at preferred saw, carries out the remeasurement to timber specification length, later feeds back error value (corrected value) to preferred saw and compensates and revises to promote the precision; meanwhile, the wood sawing correction device adopts the non-contact displacement measurement unit for measurement, is non-contact and pressure-free with wood, can realize accurate measurement of non-planar wood end faces without contact, avoids deviation of roller and contact measurement, avoids deviation of wood caused by normal bending deformation without pressure, and ensures the length accuracy of the wood in a natural state.
The working process of the present invention will be described with reference to the following specific examples.
After the wood is scribed and measured by the scribing table 100 and the measuring station 200, the wood is moved to the preferred saw main body 300 for positioning sawing.
While the preferable saw main body 300 moves the end head of the wood by the required sawing length (relative to the saw kerf), the sliding block of the synchronous belt sliding table drives the camera to move to the position (relative to the saw kerf) of the length, that is, the position of the end head of the wood, in other words, the position of the non-contact displacement measuring unit 420 (when the camera) is used for measuring (when an image is shot) corresponds to the sawing length, so that the end of the wood far away from the saw kerf 310 is located in the measuring range of the non-contact displacement measuring unit 420 (the shooting range of the camera).
After the feeding of the optimized saw and the positioning of the camera are finished, the camera takes a picture, the detection calculation unit calculates the error value according to the picture taken by the camera and then sends a detection signal containing the error value to the control unit, the control unit transmits the detection signal to a control system of the optimized saw, the optimized saw controls the wood to move the error value according to the error value to correct, and the saw is cut after the correction is finished.
Table 1 shows the installation the utility model discloses the timber saw cuts correcting unit's preferred saw and does not install the utility model discloses the timber saw cuts the comparison of saw cutting precision data of correcting unit's preferred saw.
TABLE 1
As can be seen from table 1, the error value of the preferred saw without the installed saw cut correction device is generally large when cutting wood, and has an error value of even 3mm when cutting wood with a length of 2100mm, while the error value of the preferred saw when cutting wood is reduced after the installed saw cut correction device, and the maximum error value in 20 times of cutting tests is only-0.5 mm.
To sum up, the utility model discloses the discharge end at preferred saw sets up timber saw cutting correcting unit, corrects after the error value that acquires timber operation through non-contact displacement measurement unit, perfect solution the not high problem of wood working precision, through the test in a large number of mills, the precision can stably be improved within 0.5mm, let preferred saw become for the equipment that the process velocity is fast and the precision is high.
Claims (10)
1. A wood sawing correction device is characterized by comprising a detection unit and a control unit; the detection unit comprises a driving positioning unit, a non-contact displacement measurement unit and a detection calculation unit, the non-contact displacement measurement unit is arranged on the driving positioning unit, the detection calculation unit is configured to calculate an error value after the wood runs and is sawed according to the measurement result of the non-contact displacement measurement unit, the control unit is configured to control the driving positioning unit to drive the non-contact displacement measurement unit to move, receive the detection signal of the detection unit and transmit the detection signal to a control system of a preferred saw;
the wood sawing correction device is arranged at the discharge end of the optimized saw, and the driving and positioning unit drives the non-contact displacement measurement unit to move in a direction parallel to the running path of the wood.
2. The wood sawing correction device of claim 1, wherein the drive positioning unit is a robot arm, a rocker device or a slide table.
3. The wood sawing correction device of claim 2, wherein the slide is a timing belt slide.
4. The wood sawing correction device of claim 3, wherein the precision of the timing belt slide is 0.1 mm.
5. The wood sawing correction device of claim 1, wherein the non-contact displacement measuring unit is a displacement sensor or a camera.
6. The saw cut correction device of claim 5, wherein the accuracy of the camera is 0.019 mm.
7. The saw cutting correction device of claim 1, wherein the drive positioning unit is disposed on the side of or above the path of travel of the wood.
8. The wood-sawing correction device of claim 7, wherein the distance between the initial position of the non-contact displacement measuring unit and the kerf of the preferred saw is 600mm or more.
9. The wood sawing correction device according to claim 1, wherein the non-contact displacement measuring unit measures at a position corresponding to the sawing length.
10. A preferred saw, characterized in that the discharge end of the preferred saw is provided with a timber sawing correction device according to any one of claims 1-9.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021453546.XU CN213165840U (en) | 2020-07-22 | 2020-07-22 | Timber saw cuts correcting unit and preferred saw |
| PCT/CN2021/105990 WO2022017224A1 (en) | 2020-07-22 | 2021-07-13 | Wood sawing correction device and preferred saw |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021453546.XU CN213165840U (en) | 2020-07-22 | 2020-07-22 | Timber saw cuts correcting unit and preferred saw |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213165840U true CN213165840U (en) | 2021-05-11 |
Family
ID=75795006
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021453546.XU Active CN213165840U (en) | 2020-07-22 | 2020-07-22 | Timber saw cuts correcting unit and preferred saw |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN213165840U (en) |
| WO (1) | WO2022017224A1 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113674233A (en) * | 2021-08-13 | 2021-11-19 | 沭阳东川木业有限公司 | Wood optimal selection saw visual detection method based on artificial intelligence |
| WO2022017224A1 (en) * | 2020-07-22 | 2022-01-27 | 优铠(上海)机械有限公司 | Wood sawing correction device and preferred saw |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115070879A (en) * | 2022-06-29 | 2022-09-20 | 福建省得力机电有限公司 | Intelligent edge cleaning saw capable of pushing plates at one side |
| CN117124405A (en) * | 2023-09-08 | 2023-11-28 | 福建省得力机电有限公司 | Plate cutting mode switching mode of intelligent edge trimming saw |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6698159B2 (en) * | 2001-06-21 | 2004-03-02 | Hem, Inc. | Adjustable shuttle stop apparatus |
| CN201378273Y (en) * | 2009-03-18 | 2010-01-06 | 东莞市南兴木工机械有限公司 | Control system for feeding precision of computer panel saw |
| WO2010144630A1 (en) * | 2009-06-09 | 2010-12-16 | Lean Tool Systems, Llc | Gauge system for workpiece processing |
| CN110877386B (en) * | 2019-11-08 | 2024-09-13 | 江西双双机械制造有限公司 | Bamboo tube cutting machine |
| CN213165840U (en) * | 2020-07-22 | 2021-05-11 | 优铠(上海)机械有限公司 | Timber saw cuts correcting unit and preferred saw |
-
2020
- 2020-07-22 CN CN202021453546.XU patent/CN213165840U/en active Active
-
2021
- 2021-07-13 WO PCT/CN2021/105990 patent/WO2022017224A1/en not_active Ceased
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2022017224A1 (en) * | 2020-07-22 | 2022-01-27 | 优铠(上海)机械有限公司 | Wood sawing correction device and preferred saw |
| CN113674233A (en) * | 2021-08-13 | 2021-11-19 | 沭阳东川木业有限公司 | Wood optimal selection saw visual detection method based on artificial intelligence |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2022017224A1 (en) | 2022-01-27 |
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Effective date of registration: 20240605 Address after: 201508, 2nd Floor, Building 12, No. 428 Banqiao East Road, Shanyang Town, Jinshan District, Shanghai Patentee after: Shanghai Youyilian Intelligent Machinery Co.,Ltd. Country or region after: China Address before: 201508 building 12, No. 428, Banqiao East Road, Shanyang Town, Jinshan District, Shanghai Patentee before: Youkai (Shanghai) Machinery Co.,Ltd. Country or region before: China |