Positioning device and screen printing equipment
By setting a positioning device on the turntable of the screen printing equipment, and using the claws of the lifting and adjusting components to move within the through hole to adjust the position of the substrate, the problem of positional offset caused by squeegee pressure is solved, thus improving screen printing accuracy.
Patent Information
- Application Number
- CN202520496138.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-20
- Publication Date
- 2026-01-20
- Estimated Expiration
- 2035-03-20
AI Technical Summary
In existing screen printing equipment, the pressure exerted on the substrate by the squeegee during its movement on the screen printing stencil causes the substrate to shift position, affecting the screen printing accuracy.
A positioning device, including a lifting component and an adjusting component, is installed on the turntable of the screen printing equipment. The position of the substrate is adjusted by the movement of the first and second jaws within the through hole to compensate for the offset and ensure screen printing accuracy.
By coordinating the lifting and adjusting components of the positioning device, the position of the substrate can be corrected in advance, compensating for the offset of subsequent screen printing stations and improving screen printing accuracy.
Smart Images
Figure CN223812418U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to screen printing technical field, specifically, relate to a positioning device and silk screen printing equipment. BACKGROUND
[0002] The silk screen printing equipment is a kind of equipment that each mechanism of multiple stations in carousel is cooperated to print out graphics on the printing material, such as the sector hub cover plate of vehicle.
[0003] In the related art, the silk screen printing equipment mainly includes carousel, driving device, feeding mechanical arm, dust removal mechanism, silk screen printing mechanism and detection device, the driving device is arranged below the carousel, for driving the carousel to rotate intermittently.The carousel is provided with four stations, the feeding mechanical arm is arranged at the first station, for transferring the printing material from the feeding place to the first station, the dust removal mechanism is arranged at the second station, for carrying out dust removal operation to the printing material rotated to the second station, the silk screen printing mechanism is arranged at the third station, for carrying out silk screen printing operation to the printing material rotated to the third station to form silk screen printing product, the detection device is arranged at the fourth station, for carrying out appearance detection to the silk screen printing product rotated to the fourth station.
[0004] Among them, silk screen printing operation refers to the ink is introduced at one end of silk screen printing plate, a certain pressure is applied to the ink part on the silk screen printing plate by scraper, and moves to the other end of the silk screen printing plate, so that the ink is extruded from the graphics part of the silk screen printing plate to the printing material below by the movement of the scraper.
[0005] But when the scraper at the third station moves on the silk screen printing plate, the pressure of the scraper on the silk screen printing plate will be transmitted to the printing material, so that the printing material will produce positional deviation in the movement of the scraper, thereby affecting the silk screen printing precision of silk screen printing product. INVENTION CONTENTS
[0006] The problem solved by the utility model is how to make the positioning device improve the silk screen printing precision of silk screen printing product.
[0007] To solve the above problems, the utility model provides a positioning device and silk screen printing equipment.
[0008] Firstly, the utility model provides a positioning device, applied to silk screen printing equipment, and the silk screen printing equipment includes carousel, and the carousel is provided with feeding station and silk screen printing station at intervals, and the positioning device includes lifting assembly arranged below the feeding station and adjusting assembly, the adjusting assembly includes first driving device and first jaw, the first driving device includes first fixed part and two first telescopic parts, the first fixed part is connected with the first telescopic part respectively at the end in first direction, and each first telescopic part is provided with the first jaw respectively.
[0009] The feeding station is provided with a first through hole extending along a first direction, and the position of the first clamping jaw corresponds to the position of the first through hole; the lifting assembly is connected with the first fixed part and is used to drive the first fixed part to lift so as to drive the first clamping jaw to pass through or be separated from the first through hole.
[0010] The feeding station is used to place a printing substrate, and the first driving device is used to drive the first clamping jaw to move along the first direction in the first through hole so as to adjust the position of the printing substrate on the feeding station.
[0011] Optionally, the first driving device further comprises a first adjusting plate arranged on the first telescopic part, and the first adjusting plate is provided with a plurality of first adjusting holes arranged at intervals along the first direction, and the first clamping jaw is detachably installed in the first adjusting holes at different positions.
[0012] Optionally, the adjusting assembly further comprises a second driving device and a second clamping jaw, the second driving device comprises a second fixed part and two second telescopic parts, the second fixed part is arranged on the first fixed part, and the end portion of the second fixed part along a second direction is connected with the second telescopic parts respectively, and each second telescopic part is arranged with the second clamping jaw.
[0013] The feeding station is provided with a second through hole extending along the second direction, and the second clamping jaw is used to pass through or be separated from the second through hole, and the second driving device is used to drive the second clamping jaw to move along the second direction in the second through hole so as to position the printing substrate.
[0014] The second direction is perpendicular to the first direction.
[0015] Optionally, the adjusting assembly further comprises a supporting seat arranged between the first fixed part and the second fixed part.
[0016] Optionally, the adjusting assembly comprises a plurality of first clamping jaws and a plurality of second clamping jaws, and each first telescopic part is arranged with a plurality of first clamping jaws arranged at intervals along the second direction.
[0017] Each second telescopic part is arranged with a plurality of second clamping jaws arranged at intervals along the first direction.
[0018] Optionally, the first clamping jaw comprises a first rod member and a second rod member arranged along the axial direction thereof, the second rod member is arranged on the first telescopic part, the first rod member is movably connected with the second rod member, and the first rod member is used to move axially relative to the second rod member; and the first rod member is provided with a clamping groove used to clamp the printing substrate.
[0019] Optionally, the first rod member is provided with external threads, and the second rod member is provided with internal threads, and the external threads of the first rod member are screwed with the internal threads of the second rod member.
[0020] Optionally, the first clamping jaw further comprises an upper limiting block and a lower limiting block, the upper limiting block and the lower limiting block are arranged on the first rod member in a vertical direction, and the clamping slot is formed between the upper limiting block and the lower limiting block.
[0021] Optionally, the first clamping jaw further comprises a guide sleeve, the guide sleeve is sleeved on the first rod member, and the guide sleeve is between the upper limiting block and the lower limiting block.
[0022] In a second aspect, the utility model provides a silk screen equipment, including the positioning device as described above, still include carousel and drive arrangement, drive arrangement with carousel connection for driving carousel rotation, be equipped with a plurality of stations on carousel, the interval arrangement of loading station and silk screen station in a plurality of stations.
[0023] The positioning device and the silk screen equipment have the following advantages:
[0024] The silk screen equipment can include a positioning device and a carousel, a loading station and a silk screen station are arranged at intervals on the carousel, the lifting assembly and the adjusting assembly of the positioning device can be arranged below the loading station, a first through hole extending in a first direction is formed at the loading station of the carousel, and a first clamping jaw arranged on a first driving device corresponds to the position of the first through hole of the carousel in an up-down direction.
[0025] For example, if the offset of the printing substrate in the first direction is xmm during multiple silk screen processes, the lifting assembly drives the adjusting assembly to rise before the printing substrate is placed on the loading station of the carousel, so that the first clamping jaw penetrates the first through hole, and then the printing substrate is placed in the region between the two first clamping jaws arranged at intervals on the two first telescopic parts; the two first telescopic parts of the first driving device drive the first clamping jaw to move in the first direction within the first through hole to adjust the position of the printing substrate on the loading station, so that the offset of the printing substrate in the first direction is x'mm, and then the lifting assembly drives the adjusting assembly to descend, so that the first clamping jaw is separated from the first through hole to avoid interference of the first clamping jaw with the rotating action of the carousel, and then the carousel rotates to rotate the printing substrate in the adjusted position to the next station and the silk screen station of the carousel in sequence, so as to facilitate the silk screen operation of the printing substrate, and the offset x'mm of the printing substrate in the previous loading station can compensate for the offset xmm in the silk screen station during the silk screen operation.
[0026] In other words, the first driving device and the first claw are matched to correct the position of the printing substrate placed in the feeding station in advance, so as to compensate for the offset of the printing substrate in the subsequent screen printing operation, and accordingly improve the screen printing accuracy of the printing substrate. BRIEF DESCRIPTION OF DRAWINGS
[0027] Figure 1 It is a partial structure schematic view of the screen printing equipment in the embodiment of the present application.
[0028] Figure 2 It is a top view structure schematic view of the screen printing equipment in the embodiment of the present application.
[0029] Figure 3 It is a structure schematic view of the feeding station in the embodiment of the present application.
[0030] Figure 4 It is a structure schematic view of the positioning device in the embodiment of the present application.
[0031] Figure 5 It is a partial structure schematic view of the second driving device in the embodiment of the present application.
[0032] Figure 6 It is a structure schematic view of the first claw in the embodiment of the present application.
[0033] Figure 7 It is Figure 6 It is an enlarged structure schematic view of A in the embodiment of the present application.
[0034] BRIEF DESCRIPTION OF DRAWINGS
[0035] 100-adjusting assembly; 110-first claw; 111-first rod; 112-second rod; 113-upper limiting block; 114-lower limiting block; 115-guiding sleeve; 120-second claw; 130-first driving device; 131-first telescopic part; 132-first fixed part; 133-first adjusting plate; 1331-first adjusting hole; 140-second driving device; 141-second telescopic part; 142-second fixed part; 150-supporting seat; 200-rotating disc; 210-feeding station; 211-first through hole; 212-second through hole; 220-dust removal station; 230-screen printing station; 240-detection station; 300-printing substrate; 400-lifting assembly. DETAILED DESCRIPTION
[0036] For the above purposes, features and advantages of the present application to be more apparent and understandable, the specific embodiments of the present application will be described in detail below with reference to the accompanying drawings. Although some embodiments of the present application are shown in the drawings, it should be understood that the present application can be implemented in various forms, and should not be interpreted as being limited to the embodiments described herein, on the contrary, these embodiments are provided to make the present application more thorough and complete. It should be understood that the drawings and embodiments of the present application are only for illustrative purposes, and are not intended to limit the scope of protection of the present application.
[0037] The Z-axis in the drawings represents the vertical direction, that is, the up-down position, and the positive direction of the Z-axis represents the upper side, and the negative direction of the Z-axis represents the lower side; the X-axis in the drawings represents the horizontal direction, and is designated as the left-right position, and the positive direction of the X-axis represents the right side, and the negative direction of the X-axis represents the left side; the Y-axis in the drawings represents the front-rear position, and the positive direction of the Y-axis represents the front side, and the negative direction of the Y-axis represents the rear side. It should be noted that the meanings of the aforementioned Z-axis, Y-axis and X-axis are only for the convenience of describing the present application and simplifying the description, and are not intended to indicate or imply that the devices or elements referred to must have a specific orientation, structure and operation, and therefore cannot be understood as limiting the present application.
[0038] The term "comprising" and its variants are open-ended, i.e., "including but not limited to"; the term "based on" is "at least partially based on"; the term "one embodiment" means "at least one embodiment"; the term "another embodiment" means "at least one additional embodiment"; the term "some embodiments" means "at least some embodiments"; the term "optionally" means "optional embodiments". Related definitions of other terms will be given in the following description. It should be noted that the "first", "second", etc. concepts mentioned in the present application are only used to distinguish different devices, modules or units, and are not intended to limit the functions performed by these devices, modules or units or their mutual dependency.
[0039] It should be noted that the modification of "one" or "multiple" in the present application is illustrative rather than limiting, and those skilled in the art should understand that, unless otherwise explicitly indicated in the context, it should be understood as "one or more".
[0040] To solve the problems in the above related technologies, the present embodiment provides a positioning device and a silk screen printing equipment.
[0041] As Figures 1 to 3The utility model discloses a positioning device, which is applied to a silk screen printing equipment, and the silk screen printing equipment comprises a rotating disc 200, the rotating disc 200 is provided with a feeding station 210 and a silk screen printing station 230 at intervals, the positioning device comprises a lifting assembly 400 and an adjusting assembly 100 arranged below the feeding station 210, the adjusting assembly 100 comprises a first driving device 130 and a first clamping jaw 110, the first driving device 130 comprises a first fixed part 132 and two first telescopic parts 131, the first fixed part 132 is connected with the first telescopic parts 131 at the ends in a first direction respectively, and each first telescopic part 131 is provided with the first clamping jaw 110.
[0042] The feeding station 210 is provided with a first through hole 211 extending in the first direction, and the position of the first clamping jaw 110 corresponds to the position of the first through hole 211; the lifting assembly 400 is connected with the first fixed part 132 and is used for driving the first fixed part 132 to lift so as to drive the first clamping jaw 110 to pass through or be separated from the first through hole 211.
[0043] The feeding station 210 is used for placing a printing substrate 300, and the first driving device 130 is used for driving the first clamping jaw 110 to move in the first direction in the first through hole 211 so as to adjust the position of the printing substrate 300 on the feeding station 210.
[0044] Specifically, the feeding station 210 and the silk screen printing station 230 are arranged at intervals on the upper part of the rotating disc 200, and at least one station can be arranged in the feeding station 210 and the silk screen printing station 230. When the printing substrate 300 is placed on the feeding station 210, the lifting assembly 400 drives the adjusting assembly 100 to rise, so that the first clamping jaw 110 penetrates the first through hole 211 of the rotating disc 200, so that the printing substrate 300 can be placed between the two first clamping jaws 110. During the rotation of the rotating disc 200, the lifting assembly 400 drives the adjusting assembly 100 to descend, so that the first clamping jaw 110 is separated from the first through hole 211, so that the whole positioning device is below the feeding station 210, and at this time, the first clamping jaw 110 will not interfere with the intermittent rotation of the rotating disc 200.
[0045] The first direction can be parallel to the X-axis direction in the rotating disc 200. Figure 1 And Figure 3 The first direction can be parallel to the X-axis direction in the rotating disc 200.
[0046] The first through hole 211 is arranged in the first direction, so the first through hole 211 can be a strip-shaped hole.
[0047] The printing substrate can adopt a sector-shaped wheel cover plate of a vehicle.
[0048] When the position of the printing substrate 300 needs to be adjusted or positioned, the two first telescopic parts 131 drive the two first clamping jaws 110 to move towards each other, so that the distance between the two first clamping jaws 110 on the first telescopic part 131 is reduced, and the printing substrate 300 is approached to drive the printing substrate 300 to displace a certain distance, so as to adjust the displacement of the printing substrate 300 at the feeding station. After the position adjustment or positioning of the printing substrate 300 is completed, the two first telescopic parts 131 drive the two first clamping jaws 110 to move away from each other, so that the distance between the two first clamping jaws 110 on the first telescopic part 131 is expanded to release the printing substrate 300.
[0049] The two first telescopic parts 131 are arranged along the first direction, wherein the first driving device 130 can adopt a double-head double-rod air cylinder, also known as a double-rod air cylinder, and the first fixed part 132 can be a cylinder body of the double-head double-rod air cylinder, and the first telescopic part 131 can be two side rods (piston rods) of the double-head double-rod air cylinder.
[0050] The working principle of the double-head double-rod air cylinder is that, for example, in the process of simultaneous extension of the piston rods, through the action of a reversing valve, compressed air enters the left air chamber (A chamber) from port A, while port B is communicated with the exhaust port (right air chamber B chamber exhaust), and the air pressure in the A chamber pushes the piston to move to the right. Because the cross-sectional areas of the two side piston rods are equal, the two side rods (two piston rods) are synchronously extended outward to drive the two first clamping jaws 110 on the first telescopic part 131 to move away from each other to release the printing substrate 300, until the two piston rods are extended at a constant speed from both ends of the air cylinder, and until the piston reaches the right end of the stroke.
[0051] In the process of simultaneous retraction of the piston rods, the reversing valve is switched, compressed air enters the right air chamber (B chamber) from port B, while port A is communicated with the exhaust port (left air chamber A chamber exhaust), and the air pressure in the B chamber pushes the piston to move to the left. The two side rods (two piston rods) are synchronously retracted into the air cylinder to drive the two first clamping jaws 110 on each first telescopic part 131 to move close to each other to adjust the position of the printing substrate 300, until the position adjustment of the printing substrate 300 is completed.
[0052] In this embodiment, the screen printing equipment can include a positioning device and a turntable 200, and the feeding station 210 and the screen printing station 230 are arranged on the turntable 200. The lifting assembly 400 of the positioning device and the adjusting assembly 100 can be arranged below the feeding station 210. A first through hole 211 extending along the first direction is formed at the feeding station 210 of the turntable 200, and the first clamping jaw 110 arranged on the first driving device 130 corresponds to the position of the first through hole 211 of the turntable 200 in a vertical direction.
[0053] For example, if the offset of the printing substrate 300 in the positive direction of the first direction is xmm during the multiple silk-screening processes, when the printing substrate 300 is placed in the feeding station 210 of the rotary disc 200, the lifting assembly 400 drives the adjusting assembly 100 to ascend, so that the first clamping jaw 110 penetrates the first through hole 211, and then the printing substrate 300 is placed in the area between the two first clamping jaws 110 arranged at intervals on the two first telescopic parts 131; the two first telescopic parts 131 of the first driving device 130 drive the first clamping jaw 110 to move in the first through hole 211 in the first direction, so as to adjust the position of the printing substrate 300 in the feeding station 210, so that the offset of the printing substrate 300 in the negative direction of the first direction is x'mm, and then the lifting assembly 400 drives the adjusting assembly 100 to descend, so that the first clamping jaw 110 is separated from the first through hole 211 to avoid the interference of the first clamping jaw 110 with the rotating action of the rotary disc 200, and then the rotary disc 200 rotates to rotate the printing substrate 300 in the adjusted position to the next station and the silk-screening station 230 of the rotary disc 200 in sequence, so as to perform the silk-screening operation on the printing substrate 300, and in the feeding station 210, the offset x'mm of the printing substrate 300 can compensate for the offset xmm in the silk-screening station 230. Wherein, the offset x'mm of the printing substrate 300 in the feeding station 210 is opposite to the offset xmm in the silk-screening station 230, and the sizes are the same.
[0054] For example, if the offset of the printing substrate 300 in the positive direction of the first direction is xmm (for example, the offset to the right is 20 mm) in the silk-screening station 230, when the printing substrate 300 is placed in the feeding station 210, the first clamping jaw 110 is moved in the negative direction of the first direction by the adjusting assembly 100, so that the offset of the printing substrate 300 in the feeding station 210 is x'mm (for example, the offset to the left is -20 mm).
[0055] In other words, by the cooperation of the first driving device 130 and the first clamping jaw 110, the position of the printing substrate 300 placed in the feeding station 210 is corrected in advance to compensate for the offset of the printing substrate 300 in the silk-screening operation in the subsequent silk-screening station 230, and the silk-screening precision of the printing substrate 300 is improved accordingly.
[0056] Optionally, in combination with Figure 5 As shown, the first driving device 130 further comprises a first adjusting plate 133 arranged on the first telescopic part 131, and a plurality of first adjusting holes 1331 are arranged on the first adjusting plate 133 in the first direction at intervals, and the first clamping jaw 110 is detachably installed in different positions of the first adjusting holes 1331.
[0057] Specifically, the first adjusting plate 133 can be fixed to the upper portion of the first telescopic part 131 by means of bolt fasteners, welding, adhesion, etc. to achieve the fixed connection of the first adjusting plate 133 with the first telescopic part 131.
[0058] A plurality of first adjusting holes 1331 can be arranged on the first adjusting plate 133 in a spaced manner along the first direction, and the first clamping jaw 110 can be detachably installed in the first adjusting holes 1331 at different positions to achieve different offset amounts of the printing object 300 at the screen printing station 230 and accordingly improve the applicable range.
[0059] In this embodiment, the spacing between the hole axes of the two adjacent first adjusting holes 1331 can be a millimeters, and a millimeters is an integer fraction of the aforementioned x millimeters. In other words, the aforementioned x millimeters is an integer multiple of the spacing a millimeters between the two adjacent first adjusting holes, so as to ensure that the offset amount of the printing object at the screen printing station can be effectively compensated by adjusting the installation position of the first clamping jaw in the different first adjusting holes.
[0060] In this embodiment, the first clamping jaw 110 can be a rod-shaped structure, and the first clamping jaw 110 can be detachably installed in the first adjusting hole 1331 in the following manner. For example, the first adjusting hole 1331 is a threaded hole, and the bottom end of the first clamping jaw 110 is provided with a threaded portion matched with the threaded hole. The threaded portion of the first clamping jaw 110 is threadedly connected with the threaded hole of the first adjusting hole 1331 to achieve the fixed installation of the first clamping jaw 110 in the first adjusting hole 1331 and prevent the offset during the adjustment of the printing object 300.
[0061] For another example, the first adjusting hole 1331 is a polygonal hole, and the bottom of the first clamping jaw 110 is a polygonal prism structure. The polygonal prism structure of the first clamping jaw 110 is inserted into the first adjusting hole 1331 which is a polygonal hole to prevent the rotation during the adjustment of the printing object 300.
[0062] The positive direction of the first direction can be defined as the right side, and the left side of the first direction can be defined as the left side.
[0063] In this optional embodiment, it is assumed that the printing object 300 does not produce offset in the first direction during the screen printing operation. After the two first telescopic parts 131 in the first driving device 130 move towards each other, the precise positioning action of the printing object 300 can be achieved to ensure that the printing object 300 is just in the preset position.
[0064] However, in actual silk printing operation, the pressure of the squeegee on the silk screen plate will be transmitted to the printing substrate 300, causing the printing substrate 300 to deviate in position during the movement of the squeegee, thereby affecting the silk printing quality of the silk printed product. Therefore, if the printing substrate 300 deviates in the positive direction of the first direction by xmm (for example, the deviation to the right is 20 mm) during the silk printing operation, the first clamping jaws 110 on the two first telescopic portions 131 can be moved in the reverse direction of the first direction by x'mm (for example, the deviation to the left is 20 mm), and the bottom ends of the first clamping jaws 110 are embedded in the corresponding first adjusting holes 1331. When the printing substrate 300 is placed in the feeding station 210, the two first clamping jaws 110 in the adjusting assembly 100 can be moved towards each other to adjust the printing substrate 300 in the reverse direction of the first direction by x'mm (for example, the deviation to the left is 20 mm), so that when the printing substrate 300 after adjustment is rotated to the silk printing station 230 by the rotating disc 200, the deviation x'mm (for example, the deviation to the left is 20 mm) of the printing substrate 300 in the feeding station 210 can compensate for the deviation xmm (for example, the deviation to the right is 20 mm) in the silk printing station 230, thereby improving the silk printing precision.
[0065] Conversely, if the printing substrate 300 deviates in the reverse direction of the first direction by -xmm during the silk printing operation, the first clamping jaws 110 on the two first telescopic portions 131 can be moved in the positive direction of the first direction by x'mm, and correspondingly, the adjustment deviation of the printing substrate 300 in the feeding station 210 is x'mm.
[0066] Optionally, as shown in Figure 3 and Figure 4 The adjusting assembly 100 further comprises a second driving device 140 and a second clamping jaw 120. The second driving device 140 comprises a second fixed portion 142 and two second telescopic portions 141. The second fixed portion 142 is arranged on the first fixed portion 132. The end portion of the second fixed portion 142 in the second direction is connected to the second telescopic portions 141, respectively. Each of the second telescopic portions 141 is arranged with the second clamping jaw 120.
[0067] The feeding station 210 is provided with a second through hole 212 extending in the second direction. The second clamping jaw 120 is used to pass through or disengage from the second through hole 212. The second driving device 140 is used to drive the second clamping jaw 120 to move in the second direction in the second through hole 212, so as to position the printing substrate 300.
[0068] The second direction is perpendicular to the first direction.
[0069] Specifically, the second direction can be perpendicular to Figure 4The Y-axis direction in the coordinate system is parallel to the first direction Figure 4 The X-axis direction in the coordinate system is parallel to the second direction, and the second direction is perpendicular to the first direction.
[0070] The second driving device 140 can have the same structure as the first driving device 130, or can be a double-head double-outlet cylinder. The second fixed part 142 of the second driving device 140 is a cylinder body of the double-head double-outlet cylinder, and the second telescopic part 141 of the second driving device 140 is a piston rod of the double-head double-outlet cylinder.
[0071] The second fixed part 142 of the second driving device 140 is arranged on the upper part of the first fixed part 132 of the first driving device 130, so that the relative movement of the two second telescopic parts 141 of the second driving device 140 does not interfere with the relative movement of the two first telescopic parts 131 of the first driving device 130.
[0072] The second clamping jaw 120 can have a rod structure, so that the second clamping jaw 120 can smoothly penetrate the second through hole 212.
[0073] The second through hole 212 of the feeding station 210 is arranged along the second direction, the two second telescopic parts 141 of the second driving device 140 are arranged along the second direction, and the second clamping jaw 120 corresponds to the position of the second through hole 212.
[0074] When the lifting assembly 400 drives the adjusting assembly 100 to rise, the second clamping jaw 120 moves upward to penetrate the second through hole 212, and the two second telescopic parts 141 of the second driving device 140 move toward each other to drive the two second clamping jaws 120 to move toward each other in the second through hole 212 to position the printing substrate 300. After the adjusting assembly 100 adjusts the position of the printing substrate 300, the lifting assembly 400 drives the adjusting assembly 100 to descend to drive the second clamping jaw 120 to move toward each other to disengage from the second through hole 212 to avoid interfering with the intermittent rotation of the turntable 200.
[0075] Optionally, in combination with Figure 4 As shown, the adjusting assembly 100 further comprises a support seat 150, which is arranged between the first fixed part 132 and the second fixed part 142.
[0076] Specifically, the support seat 150 can be a connecting seat structure arranged on the first fixed part 132 as the second fixed part 142.
[0077] The support seat 150 can be a plate structure, a block structure, or a plurality of support rod structures.
[0078] The support base 150 can be fixedly installed on the first fixing part 132 by means of bonding, welding, bolt fasteners, etc., and the second fixing part 142 can be installed on the second fixing part 142 by means of bolt fasteners, welding, etc.
[0079] In this optional embodiment, since the support base 150 is disposed between the first fixing part 132 and the second fixing part 142, the support base 150 can not only realize the connection and fixation between the two first fixing parts 132 and the second fixing part 142, but also increase the vertical height between the first fixing part 132 and the second fixing part 142, further preventing interference between the independent movements of the first driving device 130 and the second driving device 140, and correspondingly ensuring the safety and reliability of the operation of the first driving device 130 and the second driving device 140.
[0080] Optionally, combined Figures 2 to 4 As shown, the positioning device includes a plurality of first claws 110 and a plurality of second claws 120, and each of the first telescopic portions 131 is provided with a plurality of first claws 110 arranged at intervals along the second direction;
[0081] Each of the second telescopic portions 141 is provided with a plurality of second claws 120 arranged at intervals along the first direction.
[0082] Specifically, a plurality of first claws 110 may be provided on each of the first telescopic portions 131 of the first driving device 130. Figure 4 In this configuration, each first telescopic portion 131 has two first claws 110, and the multiple first claws 110 are spaced apart along the second direction; similarly, multiple second claws 120 can be provided on each second telescopic portion 141 of the second driving device 140. Figure 4 In this configuration, each second telescopic part 141 has one second claw 120, and multiple second claws 120 are spaced apart along the first direction.
[0083] In this optional embodiment, since each first telescopic part 131 is provided with a plurality of first claws 110 arranged at intervals along the second direction, when adjusting the position of the printing substrate 300, the plurality of first claws 110 arranged at intervals along the second direction on each first telescopic part 131 simultaneously apply a pushing force to the printing substrate 300, so as to ensure that the printing substrate 300 can be translated as a whole during the adjustment process and avoid the printing substrate 300 from rotating during the translation process.
[0084] As the second clamping claws 120 arranged at intervals in the first direction are arranged on each second telescopic part 141, when positioning the position of the printing substrate 300, the second clamping claws 120 arranged at intervals in the first direction on each second telescopic part 141 simultaneously apply a pushing force to the printing substrate 300, so as to ensure that the printing substrate 300 can be translated as a whole during positioning, and rotation of the printing substrate 300 during translation is avoided, thereby further improving the accuracy of the positioning operation of the printing substrate 300.
[0085] Optionally, in combination with Figure 6 As shown, the first clamping claw 110 comprises a first rod 111 and a second rod 112 arranged in the axial direction thereof, the second rod 112 is arranged on the first telescopic part 131, the first rod 111 is movably connected with the second rod 112, and the first rod 111 is used for axial movement relative to the second rod 112; and the first rod 111 is provided with a clamping groove used for clamping the printing substrate 300.
[0086] Specifically, the second rod 112 can be fixedly installed on the first telescopic part 131.
[0087] The clamping groove can be arranged on the first rod 111, and the size of the clamping groove can be greater than or equal to the thickness of the printing substrate 300, so that the clamping groove of the first rod 111 can be smoothly clamped on the printing substrate 300, thereby achieving the position adjustment of the printing substrate 300.
[0088] In this optional embodiment, the first rod 111 is movably connected with the second rod 112, so that the first rod 111 can move in the vertical direction relative to the second rod 112, thereby adjusting the height of the entire first clamping claw 110, and correspondingly adjusting the height position of the clamping groove on the first rod 111, so as to be suitable for the adjustment operation of the printing substrate 300 at different heights, and correspondingly increase the applicable range.
[0089] Optionally, the first rod 111 is provided with external threads, and the second rod 112 is provided with internal threads, and the external threads of the first rod 111 are screwed with the internal threads of the second rod 112.
[0090] Specifically, the second rod 112 can be a cylindrical structure, and the inner wall thereof is provided with internal threads, and the first rod 111 can be a cylindrical structure, so that the first rod 111 is embedded in the second rod 112 in a spiral manner.
[0091] In this optional embodiment, since the external threads of the first rod 111 are connected with the internal threads of the second rod 112 in a threaded manner, not only can the length of the entire first clamping claw 110 and the height position of the clamping groove be adjusted steplessly, but also after the height adjustment, the height of the first rod 111 does not need to be position-locked by other components, and the practicability is strong.
[0092] Optionally, in combination with Figure 7 As shown, the first clamping jaw 110 further comprises an upper limiting block 113 and a lower limiting block 114, which are arranged on the first rod member 111 in a vertical direction and form the clamping slot therebetween.
[0093] Specifically, the upper limiting block 113 and the lower limiting block 114 are arranged on the first rod member 111 in a vertical direction and form the clamping slot therebetween.
[0094] The upper limiting block 113 and the lower limiting block 114 can be arranged on the first rod member 111 in a rotating manner, for example, the upper limiting block 113 and the lower limiting block 114 are arranged on the first rod member 111 in a rotating manner.
[0095] In this optional embodiment, since the upper limiting block 113 and the lower limiting block 114 are arranged on the first rod member 111 in a vertical direction, the end of the first rod member 111 does not need to be processed to form a clamping slot, in other words, the overall mechanical strength of the first rod member 111 is not reduced, so as to ensure that the first rod member 111 has sufficient mechanical strength and prolongs its service life. In addition, the upper limiting block 113 and the lower limiting block 114 are arranged on the first rod member 111 in a vertical direction and can be arranged on the first rod member 111 in a rotating manner, so that the size of the clamping slot in the height direction can be adjusted, and the position of the printing substrate 300 with different thicknesses can be adjusted, thereby improving the versatility.
[0096] Optionally, in combination with Figure 7 As shown, the first clamping jaw 110 further comprises a guide sleeve 115, which is arranged on the first rod member 111 and between the upper limiting block 113 and the lower limiting block 114.
[0097] Specifically, the guide sleeve 115 is arranged on the first rod member 111 in a sleeving manner and is between the upper limiting block 113 and the lower limiting block 114.
[0098] The vertical section of the guide sleeve 115 can be substantially a hollow circular truncated cone structure.
[0099] In this optional embodiment, a guide sleeve 115 is provided between the upper limit block 113 and the lower limit block 114 on the first rod 111. The guide sleeve 115 is also located in the slot. Thus, the guide sleeve 115 can quickly confine the printing material 300 in the slot when the slot of the first rod 111 just contacts the printing material 300, preventing the end of the printing material 300 from lifting up, thereby improving the efficiency of position adjustment of the printing material 300.
[0100] This utility model provides a screen printing device, including the positioning device as described in the above embodiment, and also includes a turntable 200 and a driving device. The driving device is connected to the turntable 200 and is used to drive the turntable 200 to rotate. The turntable 200 is provided with multiple workstations, one of which is a material loading workstation 210.
[0101] Specifically, the screen printing equipment also includes a drive unit for driving the turntable 200 to rotate intermittently. The drive unit can be a rotary motor, a rotary cylinder, or the like.
[0102] In this embodiment, the turntable 200 is provided with multiple workstations, which are arranged at equal intervals. For example, if the turntable 200 is provided with four workstations, according to the rotation of the turntable 200, the four workstations are the material feeding workstation 210, the dust removal workstation 220, the screen printing workstation 230, and the inspection workstation 240 (see...). Figure 2 As shown in the diagram, the rotation angle of the turntable 200 is 90 degrees for each rotation. A corresponding mechanism can be set up at each station. For example, a loading robot can be set up on one side of the loading station 210 to transfer the substrate 300 from the feeding point to the loading station 210; a dust removal mechanism can be set up at the dust removal station 220 to remove dust from the substrate 300 that the turntable 200 rotates to the dust removal station 220. This dust removal mechanism can adopt a roller-type dust removal structure; a screen printing mechanism can be set up on one side of the screen printing station 230 to perform screen printing on the substrate 300 that rotates to the screen printing station 230 to form a screen-printed product; and an inspection device is set up at the inspection station 240 to perform appearance inspection on the screen-printed product that rotates to the inspection station 240.
[0103] Alternatively, six workstations can be set on the turntable 200, with the six workstations arranged at equal intervals.
[0104] The feeding robot, dust removal mechanism, and screen printing mechanism are all existing technologies and will not be specifically limited here; while the detection device can be a vision detection device, such as a CCD camera, which will not be elaborated here.
[0105] The advantages of the screen printing equipment in this embodiment compared to the prior art are the same as those of the positioning device described above, and will not be repeated here.
[0106] Although the utility model discloses as above, the protection scope of the utility model is not limited to this only.The person skilled in the art can make various changes and modifications without departing from the spirit and scope of the utility model, and these changes and modifications will all fall into the protection scope of the utility model.
Claims
1. A positioning device applied to a screen printing equipment, the screen printing equipment comprising a rotary table (200), a feeding station (210) and a screen printing station (230) being arranged on the rotary table (200) at intervals, characterized in that, The positioning device comprises a lifting assembly (400) arranged below the feeding station (210) and an adjusting assembly (100), the adjusting assembly (100) comprises a first driving device (130) and a first clamping jaw (110), the first driving device (130) comprises a first fixed part (132) and two first telescopic parts (131), the first fixed part (132) is connected with the first telescopic parts (131) at the ends in a first direction, and each first telescopic part (131) is arranged with the first clamping jaw (110); The feeding station (210) is provided with a first through hole (211) extending in the first direction, the position of the first clamping jaw (110) corresponds to the position of the first through hole (211); the lifting assembly (400) is connected with the first fixed part (132) and is used for driving the first fixed part (132) to lift, so as to drive the first clamping jaw (110) to pass through or separate from the first through hole (211); The feeding station (210) is used for placing a printing substrate (300), and the first driving device (130) is used for driving the first clamping jaw (110) to move in the first direction in the first through hole (211), so as to adjust the position of the printing substrate (300) on the feeding station (210).
2. The positioning device of claim 1, wherein, The first driving device (130) further comprises a first adjusting plate (133) arranged on the first telescopic part (131), the first adjusting plate (133) is provided with a plurality of first adjusting holes (1331) arranged at intervals in the first direction, and the first clamping jaw (110) can be detachably installed in different positions of the first adjusting holes (1331).
3. The positioning device of claim 1, wherein, The adjusting assembly (100) further comprises a second driving device (140) and a second clamping jaw (120), the second driving device (140) comprises a second fixed part (142) and two second telescopic parts (141), the second fixed part (142) is arranged on the first fixed part (132), the second fixed part (142) is connected with the second telescopic parts (141) at the ends in a second direction, and each second telescopic part (141) is arranged with the second clamping jaw (120); The feeding station (210) is provided with a second through hole (212) extending in the second direction, the second clamping jaw (120) is used for passing through or separating from the second through hole (212), and the second driving device (140) is used for driving the second clamping jaw (120) to move in the second direction in the second through hole (212), so as to position the printing substrate (300); The second direction is perpendicular to the first direction.
4. The positioning device of claim 3, wherein, The adjusting assembly (100) further comprises a support seat (150), and the support seat (150) is arranged between the first fixed part (132) and the second fixed part (142).
5. The positioning device of claim 3, wherein, The adjusting assembly (100) comprises a plurality of first clamping claws (110) and a plurality of second clamping claws (120), and a plurality of the first clamping claws (110) are arranged on each of the first telescopic portions (131) in the second direction; a plurality of the second clamping claws (120) are arranged on each of the second telescopic portions (141) in the first direction.
6. The positioning device according to any one of claims 1 to 5, characterized in that The first clamping claw (110) comprises a first rod member (111) and a second rod member (112) arranged in the axial direction, the second rod member (112) is arranged on the first telescopic portion (131), the first rod member (111) is movably connected with the second rod member (112), and the first rod member (111) is used for axial movement relative to the second rod member (112); the first rod member (111) is provided with a clamping groove used for clamping the printing object (300).
7. The positioning device of claim 6, wherein, The first rod member (111) is provided with external threads, the second rod member (112) is provided with internal threads, and the external threads of the first rod member (111) are screwed with the internal threads of the second rod member (112).
8. The positioning device of claim 6, wherein, The first clamping claw (110) further comprises an upper limiting block (113) and a lower limiting block (114), the upper limiting block (113) and the lower limiting block (114) are arranged on the first rod member (111) in the vertical direction, and the clamping groove is formed between the upper limiting block (113) and the lower limiting block (114).
9. The positioning device of claim 8, wherein, The first clamping claw (110) further comprises a guide sleeve (115), the guide sleeve (115) is sleeved on the first rod member (111), and the guide sleeve (115) is between the upper limiting block (113) and the lower limiting block (114).
10. A screen printing apparatus characterized by comprising: The positioning device comprises the positioning device according to any one of claims 1 to 9, further comprising a rotating disc (200) and a driving device, the driving device is connected with the rotating disc (200) and used for driving the rotating disc (200) to rotate; a plurality of work stations are arranged on the rotating disc (200), and an upper feeding work station (210) and a silk printing work station (230) in the plurality of work stations are arranged in the first direction.