TWI429891B - Fluid inspection fixture - Google Patents

Description

Fluid testing fixture

The present invention relates to a test fixture, and more particularly to a fluid test fixture for detecting a cleaning device.

With the increasing use of computers and the Internet, there is an increasing demand for printing documents on printers or printers. Based on price considerations, the current inkjet printer is still a more common choice for homes than the more expensive laser printers. The ink jet printer mainly uses an ink jet head disposed therein to accurately eject ink onto a specified position on a paper (or other carrier) to display text or images on the paper. However, in the process of inkjet printing, residual ink droplets are easily accumulated around the nozzles of the ink jet head, or powder or paper dust from the surface of the paper may be accumulated. Therefore, the nozzle of the ink jet head is easily clogged, resulting in deterioration of print quality. In detail, the so-called print quality deterioration includes ink jet density unevenness, ink color misregistration, or short life of the ink jet head. Therefore, it is very important to ensure the cleaning of the nozzle of the ink jet head to improve the printing quality and extend the life of the ink jet head.

For this reason, the nozzle of the ink jet head performs an "ejection process" before the ink jet printing to remove the ink droplets or paper dust accumulated around the nozzle by the ink. In the current ink jet printer, a collecting device is generally provided to collect the ink waste liquid ejected from the nozzle of the ink jet head, and the collecting device is often disposed independently of the maintenance device of the ink jet head, and is required An additional arrangement of the ink waste collection line results in a complicated structure of the conventional ink jet head maintenance device.

On the other hand, when the ink jet head is in a waiting for printing state, the ink droplets on the periphery of the nozzle of the ink jet head are easily dried to form residual ink, causing the nozzle to clog. Therefore, the inkjet head needs to be moisturized and maintained to prevent the ink droplets from drying up and blocking the nozzle or contaminating the dust. Therefore, a sealing mechanism is currently provided in the printer for sealing the inkjet head and scraping the remaining ink on the inkjet head to keep the inkjet head clean when the inkjet head is in a waiting for printing state.

However, in today's inkjet printers, the assembler often needs to assemble the cleaning device into the housing of the transaction machine and associate it with other modules before detecting the cleaning device and detecting whether it is detected. Has the required cleaning ability. However, if the result of the cleaning device does not meet the requirements, the assembler needs time and effort to remove the cleaning device from the transaction machine for replacement or repair.

The present invention provides a fluid detecting jig for detecting a cleaning device.

To achieve the above or other objects, the present invention provides a fluid detecting fixture suitable for detecting a cleaning device, comprising a base, a test platform, a drive shaft, a plurality of positioning fixtures, and a detecting device. The test platform, the drive shaft, the positioning fixture and the detecting device are all disposed on the base, wherein the test platform is adapted to move relative to the base between an assembled position and a test position. The drive shaft has a first end, a second end, and a gear, and the gear is disposed at a first end relatively adjacent to the test platform, and the gear is adapted to engage a gear set of the cleaning device. The positioning fixture corresponds to a plurality of positioning structures of the cleaning device to fix the cleaning device to the test platform. The detecting device comprises a positioning body, a first pneumatic cylinder and a detecting unit. The positioning body is disposed on the base and located on the moving path of the test platform, and the first pneumatic cylinder is disposed on the positioning body, and the detecting unit is disposed on a side of the first pneumatic cylinder relatively close to the base, and the first pneumatic cylinder When actuated, the detecting unit is driven by the first pneumatic cylinder to move in a normal direction of the base.

In an embodiment of the fluid detecting fixture of the present invention, the first pneumatic cylinder includes a first pneumatic cylinder body and a first push rod, wherein the first push rod is disposed through the first pneumatic cylinder body, and the detecting The unit is disposed at an end of the first push rod relatively away from the first cylinder body.

In an embodiment of the fluid detecting fixture of the present invention, each of the positioning fixtures includes a base, a positioning clip, and a positioning post. The base is disposed on the test platform, and the positioning clip is disposed on the base, and the positioning clip has a pivoting portion, an operating portion and a linking portion, wherein the operating portion and the linking portion are individually connected to the pivoting portion, and the pivoting portion is pivoted The base is configured such that the operating portion and the linking portion are adapted to pivot relative to the base about the pivoting portion. The positioning post is disposed on the linkage portion, and the positioning post is adapted to position the cleaning device in a locked position. The bases described above have different heights in the normal direction of the base.

In an embodiment of the fluid detecting fixture of the present invention, an encoder is further included, and the second end of the drive shaft is coupled to the encoder.

In an embodiment of the fluid detecting fixture of the present invention, the detecting device further includes a plurality of sensors disposed on a side of the detecting unit relatively far from the base.

In an embodiment of the fluid detecting fixture of the present invention, the test platform has an assembly area between the positioning fixtures for receiving the cleaning device.

In an embodiment of the fluid detecting fixture of the present invention, a second pneumatic cylinder disposed on the base is further disposed and coupled to the test platform, and the second pneumatic cylinder is adapted to move the test platform relative to the base. The second pneumatic cylinder includes a second pneumatic cylinder body and a second push rod. The second push rod is disposed through the second pneumatic cylinder body, and the test platform is connected to the second push rod relative to the second pneumatic cylinder body. One end.

In an embodiment of the fluid detecting fixture of the present invention, a pair of slide rails disposed on the base are further included, and the test platform is disposed on the slide rail, and the test platform is adapted to move on the slide rail.

Based on the above, the fluid detecting jig of the present invention can detect whether the function of the cleaning device is normal before the cleaning device is assembled to the transaction machine. The cleaning device can be pre-detected by using the fluid detecting jig of the present invention, and the cleaning device can be assembled to the transaction machine after the test result of the cleaning device reaches the standard, as compared with the prior art. This can save assembly manpower and man-hours, and thus effectively reduce costs.

The above described features and advantages of the present invention will be more apparent from the following description.

The fluid detecting jig of the present invention is used to test whether the cleaning device can be actuated and meets the set requirements before the cleaning device is placed in the inkjet printer (or transaction machine). Before the cleaning device is installed in the inkjet printer (or the transaction machine), the cleaning device is tested by the fluid detecting jig of the present invention, and after the cleaning device passes the detection, the cleaning device is installed to the inkjet device. Printer (or machine). Compared with the conventional need to install the cleaning device in the inkjet printer (or the transaction machine), the cleaning device can be tested, and the cleaning device of the present invention is used to test the cleaning device first, and the cleaning device passes the inspection device. After the inspection, it is loaded into the inkjet printer (or the transaction machine), thereby saving the assembly manpower and man-hours of the disassembly, replacement, or repair if the cleaning device fails the inspection, thereby effectively reducing the cost. The following embodiments are merely illustrative of the fluid detecting jig of the present invention. Those skilled in the art can modify the setting components of the fluid detecting jig according to actual needs, for example, modifying the fluid detecting jig for different cleaning devices of different specifications. The components selected and their location settings, but still do not violate the spirit of the present invention.

1 is a schematic view of a cleaning device applied to a printer or a transaction machine, and FIG. 2 is a schematic view of a fluid detecting fixture corresponding to the cleaning device of FIG. 1. Referring to FIG. 1 and FIG. 2 simultaneously, the fluid detecting jig 200 of the present embodiment detects the cleaning device 100 as shown in FIG. The cleaning device 100 is adapted to be installed in a printer or an inkjet printer, and includes a device body 110, a plurality of pipelines to be tested 120 (only two are shown in FIG. 1), a clutch 130, and a plurality of The positioning structure 140, a gear set 150, and a cleaner 160. The pipeline to be tested 120, the clutch 130, the positioning structure 140 and the cleaner 160 are all disposed on the apparatus body 110, and the gear set 150 is disposed on one side of the apparatus body 110. The cleaner 160 is located in the middle of the apparatus body 110, wherein the cleaner 160 is a cover for adhering to the inkjet head when the inkjet head of the inkjet printer (or the printer) is in a waiting for printing state. The pipeline to be tested 120 is in communication with the cleaner 160 and is pulled to the side edge of the apparatus body 110. When the cleaning device 100 is installed in a transaction machine or an inkjet printer, the pipeline 120 to be tested is placed on the transaction machine. Or a pump (not shown) in the inkjet printer is connected, and the pump acts to pump the air in the cleaner 160 through the pipeline 120 to be tested or inject the air through the pipeline to be tested 120. In the device 160. The clutch 130 is located between the cleaner 160 and the gear set 150, and the positioning structure 140 is disposed around the edge of the device body 110.

Referring to FIG. 1 and FIG. 2 simultaneously, the fluid detecting fixture 200 includes a base 210, a test platform 220, a drive shaft 230, a plurality of positioning fixtures 240, and a detecting device 250. The test platform 220, the drive shaft 230, the positioning fixture 240 and the detecting device 250 are all disposed on the base 210, wherein the test platform 220 is mounted on the base 210 in an assembled position (as shown in FIG. 2) and a test position (FIG. 5). Move between shows). The drive shaft 230 has a first end 232, a second end 234, and a gear 236 (shown in FIG. 6), and the gear 236 is disposed adjacent the first end 232 of the test platform 220. The positioning fixture 240 is disposed corresponding to the plurality of positioning structures 140 of the cleaning device 150. The detecting device 250 includes a positioning body 252, a first pneumatic cylinder 254 and a detecting unit 256. The positioning body 252 is disposed on the base 210 and located on the moving path of the test platform 220 to stop the movement of the test platform 220. The first pneumatic cylinder 254 is disposed on the positioning body 252, and the detecting unit 256 is disposed on a side of the first pneumatic cylinder 254 relatively close to the base 210. When the first pneumatic cylinder 254 is actuated, the detecting unit 256 is subjected to the first The one pneumatic cylinder 254 is moved to move in the normal direction N of the base 210.

In the above, the test platform 220 further has an assembly area 222 for accommodating the cleaning device 100. The structure and component arrangement in the assembly area 222 is the corresponding transaction machine to be installed with the cleaning device 100 to be tested or The structure and component settings of the inkjet printer are the same. This assembly area 222 is located between the positioning fixtures 240.

In addition, the first pneumatic cylinder 254 includes a first pneumatic cylinder body 254a and a first push rod 254b. The first push rod 254b is disposed through the first pneumatic cylinder body 254a, and the detecting unit 256 is disposed on the first push rod 254b. Relative to an end of the first pneumatic cylinder body 254a.

Each of the positioning fixtures 240 includes a base 242, a positioning clip 244, and a positioning post 246. The base 242 is disposed on the test platform 220, and the positioning clip 244 is disposed on the base 242. The positioning clip 244 has a pivoting portion 244a, an operating portion 244b, and a linking portion 244c. The operating portion 244b and the linking portion 244c are individually connected to the base portion 242. The pivoting portion 244a and the operating portion 244b and the linking portion 244c are slightly V-shaped. The pivoting portion 244a is pivotally mounted to the base 242 such that the operating portion 244b and the linking portion 244c are adapted to rotate relative to the base 242 about the pivoting portion 244a. The positioning post 246 is disposed on the linking portion 244c, and when the operating portion 244b and the linking portion 244c are rotated relative to the base 242 to a locking position about the pivoting portion 244a, the positioning post 246 is fastened to the positioning structure 140 of the cleaning device 100. The cleaning device 100 is fixed to the test platform 220. In the present embodiment, the height of the base 242 of the positioning fixture 240 in the normal direction N of the base 210 is not completely the same according to the overall design of the cleaning device 100.

Furthermore, the fluid detecting fixture 200 further includes an encoder 260, and the second end 234 of the drive shaft 230 is coupled to the encoder 260.

The detecting device 250 further includes a plurality of sensors 258 (only two sensors 258 are shown in FIG. 2), and the sensors 258 are disposed on a side of the detecting unit 256 that is relatively far from the base 210.

In addition, in order to allow the test platform 220 to move smoothly and smoothly relative to the base 210 relative to the base 210, the fluid detecting jig 200 may further include a pair of slide rails 270 disposed on the base 210, and the test platform 220 is disposed on On the slide rail 270. In this way, the user can move the test platform 220 more effortlessly than if the slide rails 270 are not provided, so that the test platform 220 moves on the slide rails 270 relative to the base 210.

3 is a schematic view of the cleaning device of FIG. 1 installed in the fluid detecting fixture of FIG. 2. Referring to FIG. 3, when the cleaning device 100 is to be inspected, the cleaning device 100 is installed into the assembly area 222 of the test platform 220 of the fluid testing fixture 200. 4 is a schematic view showing a positioning structure of a positioning clamp fastening device of the fluid detecting jig of FIG. 3. Next, as shown in FIG. 4, the user manually pulls the operation portion 244b of the positioning clip 244 of the positioning jig 240, and rotates the operation portion 224b with respect to the base 242 with the pivot portion 224a as a center of rotation, and the interlocking portion 224c is rotated to lock. In the position, the positioning post 246 disposed at the interlocking portion 224c is snapped into the positioning structure 140 of the cleaning device 100. As such, the cleaning device 100 is secured to the test platform 220.

FIG. 5 is a schematic view of the test platform being moved to the test position, and FIG. 6 is a schematic view omitting the detecting device of FIG. 5. Referring to FIG. 5 and FIG. 6 simultaneously, the user manually moves the test platform 220 to the test position along the self-assembly position (shown in FIG. 2 ) of the pair of slide rails 270 disposed on the base 210 . In other embodiments, in order to save manpower or to prevent the test platform 220 from smoothly moving relative to the base 210 on the base 210, the fluid detecting jig 200 may further include a second pneumatic cylinder disposed on the base 210 ( Not shown), and connected to the test platform 220, and the second pneumatic cylinder is adapted to move the test platform 220 relative to the base 210. The structure of the second pneumatic cylinder is substantially the same as that of the first pneumatic cylinder 254, except that the push rod of the second pneumatic cylinder is connected to the test platform 220.

In the above, when the test platform 220 is moved to the test position in the self-assembly position (shown in FIG. 2), the gear 236 of the drive shaft 230 engages with one of the gears (not labeled) of the gear set 150 of the cleaning device 100. Figure 7 is a schematic view of the clutch of Figure 6 being held by the jack, and Figure 7A is a schematic view of the gear of Figure 7 engaged with the rack after the clutch is held by the jack. In order to clearly show the condition in which the clutch is held by the jack, FIGS. 7 and 6 are presented in different viewing angles. Referring to FIG. 7 and FIG. 7A simultaneously, the fluid detecting fixture 200 further has a third pneumatic cylinder 280 disposed on the base 210 and located at the junction of the test platform 220 and the transmission shaft 230. When the third pneumatic cylinder 280 is used to press against the clutch 130 of the cleaning device 100, and the clutch 130 is held by the third pneumatic cylinder 280, a gear 132 of the clutch 130 meshes with the rack 152 in the gear set 150 to achieve power. The purpose of the transfer. In other embodiments, the third pneumatic cylinder 280 can also be replaced with a stationary rod member, as well as forcing the clutch 130.

Fig. 8 is a schematic view showing the movement of the ruler driving the cleaner, and Fig. 9 is a schematic view of the pneumatic cylinder pushing the cleaner to the lower side of the detecting unit. Referring to FIG. 6, FIG. 7A and FIG. 8, the drive shaft 230 rotates to drive the gear 236 to rotate the gear of the gear set 150 of the cleaning device 100, and the rack 152 that meshes with the gear 132 of the clutch 130 promotes cleaning. The device 160 moves toward a first direction D1. The fluid detecting jig 200 further has a fourth pneumatic cylinder 290 disposed on the test platform 220 and located on opposite sides of the assembly area 222 with the detecting device 250. Therefore, as shown in FIG. 9, the fourth pneumatic cylinder 290 is actuated to move the cleaner 160 to move below the detecting unit 256 along the second direction D2.

Figure 10 is a schematic view of the cleaner in close contact with the detecting unit. Next, as shown in FIG. 10, the first pneumatic cylinder 254 is actuated such that its first push rod 254b drives the detecting unit 256 to move toward the cleaner 160 to seal the cleaner 160. At this time, the push rod (not shown) of the third pneumatic cylinder 280 (shown in FIG. 7) leaves the clutch 130 (as shown in FIG. 7), and moves to the original position, and the gear 132 meshes with the rack 152 (FIG. 7A). Shown) is separated from the rack 152. Then, a pump (not shown) performs vacuuming detection on the cleaner 160. The pump may be disposed in the fluid detecting fixture 200 or in an external connection, according to actual needs. At this time, the user can perceive whether the cleaning device 100 can function normally by simply discharging gas from the pipeline to be tested 120 or whether gas is sucked into the pipeline 120 to be tested. Of course, it can also be sensed by the sensor 258. Moreover, the sensor 258 can be electrically connected to a circuit to transmit the measured sensing result to a computer or a display screen for display or storage, as determined by requirements.

After the test is completed, the components are returned and returned in the reverse order of the above process, and the detected cleaning device 100 is removed from the fluid detecting fixture 200. Then, the detected cleaning device 100 can be installed in a transaction machine or an inkjet printer without detecting the cleaning device 100 again.

In summary, in the fluid detecting jig of the present invention, whether the cleaning device can be actuated as required can be tested before the cleaning device is installed in the ink jet printer (or the transaction machine). Firstly, the cleaning device is tested by using the fluid detecting fixture of the invention. After the cleaning device passes the detection, the cleaning device is installed on the inkjet printer (or the transaction machine), which has the advantage that compared with the conventional one. The cleaning device needs to be installed in the inkjet printer (or the transaction machine) before the cleaning device can be tested, and the cleaning device can be tested by using the fluid detecting fixture of the invention, which can save the cleaning device if it fails the test. The assembly manpower and working hours of heavy work such as disassembly, replacement or repair are required, thereby effectively reducing costs.

Although the present invention has been disclosed in the above embodiments, it is not intended to limit the invention, and any one of ordinary skill in the art can make some modifications and refinements without departing from the spirit and scope of the invention. The scope of the invention is defined by the scope of the appended claims.

100. . . Cleaning device

110. . . Device body

120. . . Pipeline to be tested

130. . . clutch

132. . . gear

140. . . Positioning structure

150. . . Gear set

152. . . rack

160. . . Cleaner

200. . . Fluid testing fixture

210. . . Pedestal

220. . . testing platform

222. . . Assembly area

230. . . transmission shaft

232. . . First end

234. . . Second end

236. . . gear

240. . . Positioning fixture

242. . . Base

244. . . Positioning clip

244a. . . Pivot

244b. . . Operation department

244c. . . Linkage department

246. . . Positioning column

250. . . Testing device

252. . . Positioning ontology

254. . . First pneumatic cylinder

254a. . . First pneumatic cylinder body

254b. . . First putter

256. . . Detection unit

258. . . Sensor

260. . . Encoder

270. . . Slide rail

280. . . Third pneumatic cylinder

290. . . Fourth pneumatic cylinder

N. . . Normal direction

D1. . . First direction

D2. . . Second direction

Figure 1 is a schematic illustration of a cleaning device for use in a printer or printer.

2 is a schematic view of a fluid detecting jig corresponding to the cleaning device of FIG. 1.

3 is a schematic view of the cleaning device of FIG. 1 installed in the fluid detecting fixture of FIG. 2.

4 is a schematic view showing a positioning structure of a positioning clamp fastening device of the fluid detecting jig of FIG. 3.

Figure 5 is a schematic illustration of the test platform being moved to the test position.

Fig. 6 is a schematic view omitting the detecting device of Fig. 5.

Figure 7 is a schematic view of the clutch of Figure 6 being held against the jack.

7A is a schematic view showing the gear and the rack meshed after the clutch of FIG. 7 is held by the jack.

Figure 8 is a schematic view of the movement of the ruler to drive the cleaner.

Figure 9 is a schematic view of the pneumatic cylinder pushing the cleaner to the underside of the detecting unit.

Figure 10 is a schematic view of the cleaner in close contact with the detecting unit.

200. . . Fluid testing fixture

210. . . Pedestal

220. . . testing platform

222. . . Assembly area

230. . . transmission shaft

240. . . Positioning fixture

242. . . Base

244. . . Positioning clip

244a. . . Pivot

244b. . . Operation department

244c. . . Linkage department

246. . . Positioning column

250. . . Testing device

252. . . Positioning ontology

254. . . First pneumatic cylinder

254a. . . First pneumatic cylinder body

254b. . . First putter

256. . . Detection unit

258. . . Sensor

260. . . Encoder

270. . . Slide rail

290. . . Fourth pneumatic cylinder

N. . . Normal direction

Claims (10)

A fluid detecting fixture, suitable for detecting a cleaning device, comprising: a base; a test platform disposed on the base and adapted to move relative to the base between an assembly position and a test position; a drive shaft disposed on the base, having a first end, a second end, and a gear, and the gear is disposed at the first end of the test platform, and the gear is adapted to be coupled to the cleaning device a plurality of positioning fixtures are disposed on the plurality of positioning structures of the cleaning device to fix the cleaning device to the testing platform; a detecting device comprising: a positioning body disposed on the base And located on the moving path of the test platform; a first pneumatic cylinder is disposed on the positioning body; and a detecting unit is disposed on a side of the first pneumatic cylinder relatively close to the base, and the first pneumatic cylinder When the actuator is actuated, the detecting unit is driven by the first pneumatic cylinder to move in a normal direction of the base. The fluid detecting jig according to claim 1, wherein the first pneumatic cylinder comprises: a first pneumatic cylinder body; and a first push rod disposed through the first pneumatic cylinder body, wherein the detecting The unit is disposed at an end of the first push rod relatively away from the first cylinder body. The fluid detecting jig of claim 1, wherein each positioning jig comprises: a base disposed on the test platform; a positioning clip disposed on the base, and the positioning clip has a pivoting portion An operation portion and a linkage portion, wherein the operation portion and the linkage portion are individually connected to the pivot portion, and the pivot portion is pivotally disposed on the base such that the operation portion and the linkage portion are adapted to be The joint pivots relative to the base; and a positioning post is disposed on the linkage and is adapted to position the cleaning device in a locked position. The fluid detecting jig of claim 3, wherein the bases have different heights in the normal direction of the base. The fluid detecting jig of claim 1, further comprising an encoder, the second end of the drive shaft being coupled to the encoder. The fluid detecting jig of claim 1, wherein the detecting device further comprises a plurality of sensors disposed on a side of the detecting unit that is relatively far from the base. The fluid testing fixture of claim 1, wherein the testing platform further has an assembly area between the positioning fixtures for receiving the cleaning device. The fluid detecting jig according to claim 1, further comprising a second pneumatic cylinder disposed on the base and connected to the test platform, and the second pneumatic cylinder is adapted to move the test platform relative to The pedestal moves. The fluid detecting jig of claim 8, wherein the second pneumatic cylinder comprises: a second pneumatic cylinder body; and a second push rod disposed through the second pneumatic cylinder body, wherein the test The platform is coupled to the second push rod relatively away from an end of the second pneumatic cylinder body. The fluid detecting jig according to claim 1, further comprising a pair of slide rails disposed on the base, wherein the test platform is disposed on the pair of slide rails and is adapted to be on the pair of slide rails mobile.