Screen printing table
The screen printing table design, which combines a rotary drive mechanism and an encoder, solves the problem that existing screen printing tables cannot meet the requirements of multiple stations and high precision. It achieves precise control of the screen printing frame and screen printing mechanism in multiple stations, thus improving the performance of the screen printing table.
Patent Information
- Application Number
- CN202422621771.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-29
- Publication Date
- 2025-08-01
- Estimated Expiration
- 2034-10-29
AI Technical Summary
The existing screen printing tables cannot meet the requirements of more stations and higher station precision for dual-table or multi-table screen printing machines.
The design employs a rotary drive mechanism, encoder, guide column, and guide sleeve. Multiple traction components drive the screen printing frame and screen printing mechanism to rise and fall, and the encoder detects the real-time height position, enabling multiple height stations and high-precision position control.
It achieves precise positioning of the screen printing frame and screen printing mechanism at multiple height stations, meeting the needs of multiple stations and high precision, and improving the flexibility and lifespan of the screen printing table.
Smart Images
Figure CN223173747U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of screen printing equipment, and particularly relates to a screen printing table. Background Art
[0002] In a screen printing machine, a screen printing table is used to install and support mechanisms such as a screen plate / screen printing frame and a screen printing mechanism. At the present stage, the screen printing pressure of the screen printing machine is small, the weight of the screen printing mechanism is also relatively light, and there are generally only three positions where the screen printing frame stays, namely the screen printing position, the staying position at the end of the working stroke of the screen printing frame, and the highest position. With the emergence of double-table or multi-table screen printing machines, the existing screen printing table can no longer meet the requirements of more work positions and higher work position accuracy for mechanisms such as the screen printing frame and the screen printing mechanism. Summary of the Utility Model
[0003] The utility model aims to at least solve one of the technical problems existing in the prior art. For this purpose, the utility model provides a screen printing table, which can adjust the mechanisms such as the screen printing frame and the screen printing mechanism to be at multiple height positions with relatively high position accuracy.
[0004] A screen printing table according to an embodiment of the utility model includes a machine table, a rotary driving mechanism, an encoder, and multiple groups of cooperating guide posts and guide sleeves. A plurality of guide wheels are provided on the machine table; the guide sleeves are respectively arranged at the edges of the machine table, the lower ends of all the guide posts extend below the guide wheels, and the upper ends of all the guide posts are connected with a support frame for supporting the screen printing frame and the screen printing mechanism; the rotary driving mechanism is arranged below the machine table, the output end of the rotary driving mechanism is connected with a rotary shaft, and a plurality of traction members are wound around both ends of the rotary shaft. One end of the traction member bypasses the guide wheel and is connected with the lower end of the guide post to drive the screen printing frame and the screen printing mechanism to lift; the encoder is in transmission connection with the rotary driving mechanism or the rotary shaft to detect the stroke of the screen printing frame and the screen printing mechanism.
[0005] It has at least the following beneficial effects:
[0006] The rotary driving mechanism drives the lifting of the support frame, the screen printing frame and the screen printing mechanism through a plurality of traction members, and detects the real-time height position of the support frame, the screen printing frame and the screen printing mechanism through the encoder, so as to control the stroke of the support frame, the screen printing frame and the screen printing mechanism, which can meet the requirements that the mechanisms such as the screen printing frame and the screen printing mechanism are at multiple height positions and have relatively high height position accuracy, that is, to meet the requirements of multiple work positions and higher position accuracy of the screen printing frame and the screen printing mechanism.
[0007] According to some embodiments of the utility model, the traction member is a chain, and the other end of the chain is wound around the rotary shaft through a first sprocket.
[0008] According to some embodiments of the present utility model, the guiding wheel is a second sprocket wheel.
[0009] According to some embodiments of the present utility model, one end of the traction member is connected to the lower end of the guide post through an adjusting assembly.
[0010] According to some embodiments of the present utility model, the adjusting assembly includes a screw rod and two nuts. A connecting plate is provided at the lower end of the guide post. The screw rod is threadedly connected to the connecting plate. Both ends of the screw rod are locked to the connecting plate through the two nuts. One end of the traction member is connected to one end of the screw rod.
[0011] According to some embodiments of the present utility model, the machine table includes a tabletop. Both the rotating shaft and the guiding wheel are disposed below the tabletop, and the rotating shaft is below the guiding wheel.
[0012] According to some embodiments of the present utility model, the rotating shaft is connected to the machine table through a bearing seat. The rotary drive mechanism is connected to the machine table. The output end of the rotary drive mechanism is in transmission connection with the rotating shaft through a speed reducer.
[0013] According to some embodiments of the present utility model, two counting disks are sleeved on the rotating shaft. Two induction switches are provided on the machine table. The two counting disks are respectively arranged in cooperation with the two induction switches. The notches of the two counting disks respectively correspond to the starting position and the ending position of the rotating shaft. The two induction switches are respectively used to sense the starting position and the ending position of the rotating shaft to control the start and stop of the rotary drive mechanism.
[0014] Additional aspects and advantages of the present utility model will be given in part in the following description, become apparent in part from the following description, or be learned through the practice of the present utility model. BRIEF DESCRIPTION OF THE DRAWINGS
[0015] The following further describes the present utility model in conjunction with the drawings and embodiments, where:
[0016] Figure 1 is a schematic structural diagram of an embodiment of the present utility model;
[0017] Figure 2 is a schematic structural diagram of the embodiment of the present utility model with the tabletop hidden;
[0018] Figure 3 is a schematic structural diagram of the rotary drive mechanism and the encoder of the embodiment of the present utility model;
[0019] Reference numerals in the drawings:
[0020] Machine table 100; Tabletop 110; Bearing seat 120; Induction switch 130;
[0021] Deflection wheel 200;
[0022] Guide post 300;
[0023] Bushing 400;
[0024] Support frame 500;
[0025] Rotary drive mechanism 600; Rotating shaft 610; First sprocket 611; Counting disk 612; Reducer 620;
[0026] Traction member 700;
[0027] Encoder 800;
[0028] Adjustment assembly 900. Detailed implementation mode
[0029] The embodiments of the present invention will be described in detail below. The examples of the embodiments are shown in the drawings, where the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the drawings are exemplary and are only used to explain the present invention, and should not be construed as a limitation to the present invention.
[0030] In the description of the present invention, it should be understood that the orientation or positional relationship indicated by terms such as up, down, front, back, left, right, etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present invention.
[0031] In the description of the present invention, "a plurality of" refers to more than two. If the first and second are described only for the purpose of distinguishing technical features, they should not be construed as indicating or implying relative importance or implicitly indicating the quantity of the indicated technical features or implicitly indicating the sequence of the indicated technical features.
[0032] In the description of the present invention, unless otherwise clearly defined, terms such as "set", "installed", "connected", etc. should be understood in a broad sense, and those skilled in the art can reasonably determine the specific meanings of the above terms in the present invention in combination with the specific content of the technical solution.
[0033] Refer to Figures 1 to 3, The utility model discloses a screen printing table, which includes a machine table 100, a rotary driving mechanism 600, an encoder 800, and multiple groups of cooperating guide posts 300 and guide sleeves 400. A plurality of guide wheels 200 are provided on the machine table 100; the guide sleeves 400 are respectively arranged at the edges of the machine table 100, the lower ends of all the guide posts 300 extend below the guide wheels 200, and the upper ends of all the guide posts 300 are connected with a support frame 500, and the support frame 500 is used for supporting the screen printing frame and the screen printing mechanism; the rotary driving mechanism 600 is arranged below the machine table 100, the output end of the rotary driving mechanism 600 is connected with a rotary shaft 610, and a plurality of traction members 700 are wound around both ends of the rotary shaft 610. One end of the traction member 700 bypasses the guide wheel 200 and is connected with the lower end of the guide post 300 to drive the screen printing frame and the screen printing mechanism to lift and lower; the encoder 800 is in transmission connection with the rotary driving mechanism 600 or the rotary shaft 610 to detect the stroke of the screen printing frame and the screen printing mechanism.
[0034] Through the cooperation of the guide posts 300 and the guide sleeves 400, the support frame 500 can perform lifting and lowering movements on the machine table 100. Since the lower ends of the guide posts 300 are all lower than the guide wheels 200, when the rotary driving mechanism 600 drives the rotary shaft 610 to rotate, the rotary shaft 610 simultaneously winds or unwinds a plurality of traction members 700, so that the plurality of traction members 700 simultaneously drive the support frame 500 to lift and lower, and further drive the screen printing frame and the screen printing mechanism to lift and lower. When the rotary driving mechanism 600 drives the rotary shaft 610 to rotate, the encoder 800 can detect the rotation angle of the rotary driving mechanism 600 or the rotary shaft 610, and finally the stroke of the support frame 500, the screen printing frame and the screen printing mechanism for lifting and lowering can be obtained, that is, the height positions of the support frame 500, the screen printing frame and the screen printing mechanism can be obtained.
[0035] The rotary driving mechanism 600 drives the support frame 500, the screen printing frame and the screen printing mechanism to lift and lower through a plurality of traction members 700, and detects the real-time height positions of the support frame 500, the screen printing frame and the screen printing mechanism through the encoder 800, so as to control the stroke of the support frame 500, the screen printing frame and the screen printing mechanism, which can meet the requirements of the screen printing frame and the screen printing mechanism and other mechanisms at multiple height positions of the workstations, and the requirements of higher height position accuracy, that is, to meet the needs of multiple workstations of the screen printing frame and the screen printing mechanism and higher position accuracy.
[0036] Referring to Figure 2 and Figure 3 , in some of the embodiments, the traction member 700 is a chain, and the other end of the chain is wound around the rotary shaft 610 through a first sprocket 611. The rotary shaft 610 drives the first sprocket 611 to rotate, and when the first sprocket 611 rotates, it winds or unwinds the chain.
[0037] The chain is not easily stretched. The cooperation between the chain and the first sprocket 611 can achieve higher transmission accuracy, and ultimately reduce the errors in the lifting of the support frame 500, the screen printing frame, and the screen printing mechanism. The chain can be bent, which is convenient for layout and changing the direction of force.
[0038] Referring to Figure 2 , in some of the embodiments, the guide wheel 200 is a second sprocket, the chain is sleeved on the second sprocket, and the second sprocket changes the extension direction of the chain, and the second sprocket plays a guiding role.
[0039] It can be understood that the axial directions of the guide posts 300 and the guide sleeves 400 are both vertical. The number of the guide posts 300 and the guide sleeves 400 is four. A set of a mutually cooperating guide post 300 and a guide sleeve 400 is a guiding structure. The four guiding structures are respectively arranged at the four corners of the machine table 100, and the upper ends of the four guide posts 300 are respectively connected to the four corners of the support frame 500.
[0040] The number of the traction members 700 and the first sprockets 611 is four. When the rotary drive mechanism 600 drives the rotary shaft 610 to rotate, the rotary shaft 610 drives the four first sprockets 611 to rotate, the four first sprockets 611 respectively pull the four traction members 700, and the four traction members 700 respectively pull the four guide posts 300 to lift, so as to realize the lifting of components such as the support frame 500, the screen printing frame, and the screen printing mechanism.
[0041] Referring to Figure 1 and Figure 2 , in some of the embodiments, one end of the traction member 700 is connected to the lower end of the guide post 300 through the adjusting assembly 900. By adjusting the initial tension or the tension degree of the traction member 700 through the adjusting assembly 900, the forces applied by the multiple traction members 700 on the multiple guide posts 300 are made equal, so as to ensure the force balance of the support frame 500, the screen printing frame, and the screen printing mechanism, which is beneficial to the stable operation of the screen printing table, reduces the wear of each component of the screen printing table, and improves the service life of the screen printing table.
[0042] In some of the embodiments, the adjusting assembly 900 includes a screw rod and two nuts. A connecting plate is provided at the lower end of the guide post 300. The screw rod is threadedly connected to the connecting plate. One end of the traction member 700 is connected to one end of the screw rod. By rotating the screw rod, the initial tension or the tension degree of the traction member 700 can be adjusted. The screw rod is vertically arranged.
[0043] The two ends of the screw rod are locked on the connecting plate by the two nuts, and the two nuts can prevent the accidental rotation of the screw rod and prevent the screw rod from falling off the connecting plate.
[0044] Referring to Figure 1 and Figure 2, in some of these embodiments, the machine platform 100 includes a bottom plate, a tabletop 110, and four support walls. The four support walls are provided around the bottom plate, and the four sides of the tabletop 110 are connected to the upper ends of the four support walls. A plurality of universal wheels with self-locking functions are provided on the bottom plate. A printing table can be arranged on the tabletop 110. A support frame 500 is arranged above the tabletop 110, and the support frame 500 is higher than the printing table.
[0045] The rotating shaft 610 and the guide wheels 200 are both arranged below the tabletop 110, and the rotating shaft 610 is below the guide wheels 200, so as to prevent the rotating shaft 610, the guide wheels 200, and the rotating shaft 610 from occupying the space around the machine platform 100.
[0046] Referring to Figure 1 and Figure 3 , in some of these embodiments, the rotating shaft 610 is connected to the machine platform 100 through a bearing block 120. The bearing block 120 enables the rotating shaft 610 to rotate on the machine platform 100 and at the same time limits the position of the rotating shaft 610. A rotation driving mechanism 600 is connected to the machine platform 100, and the output end of the rotation driving mechanism 600 is in transmission connection with the rotating shaft 610 through a speed reducer 620.
[0047] It can be understood that the bearing block 120, the rotation driving mechanism 600, and the speed reducer 620 are all arranged on the bottom plate.
[0048] The number of guide wheels 200 is eight. A traction member 700 and two guide wheels 200 cooperate to form a traction structure. The two guide wheels 200 are arranged horizontally, so that a traction member 700 forms an inverted U shape. In this embodiment, a total of four traction structures are formed, and two of the traction structures and the other two traction structures are respectively arranged on two opposite support walls. Two first sprockets 611 are respectively arranged at both ends of the rotating shaft 610.
[0049] An encoder 800 is fixed on the bottom plate. A third sprocket or a driving pulley is arranged on the rotating shaft 610, and a fourth sprocket or a driven pulley is arranged at the input end of the encoder 800. A transmission chain is wound around the third sprocket and the fourth sprocket, and a belt is wound around the driving pulley and the driven pulley.
[0050] In order to prevent the support frame 500, the screen printing frame, and the screen printing mechanism from interfering with other components, the support frame 500 needs to be set at a starting position and a terminating position, and the support frame 500 moves between the starting position and the terminating position.
[0051] Referring to Figure 3, in some of these embodiments, two counting disks 612 are sleeved on the rotating shaft 610, and two inductive switches 130 are provided on the machine table 100. The two counting disks 612 are respectively arranged in cooperation with the two inductive switches 130. The notches of the two counting disks 612 respectively correspond to the starting position and the ending position of the rotating shaft 610. The two inductive switches 130 are respectively used to sense the starting position and the ending position of the rotating shaft 610. The starting position and the ending position of the rotating shaft 610 correspond to the starting position and the ending position of the support frame 500. By detecting whether the rotating shaft 610 is between the starting position and the ending position, it is determined whether the support frame 500 is between the starting position and the ending position.
[0052] By detecting whether the rotating shaft 610 is between the starting position and the ending position, the start and stop of the rotation driving mechanism 600 are controlled, and thus the stroke of the support frame 500 is controlled, avoiding interference between the support frame 500, the screen printing frame and the screen printing mechanism and other components.
[0053] The technical features of the above embodiments can be combined arbitrarily. For the sake of concise description, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, it should be considered as the scope described in this specification.
[0054] Certainly, the present utility model is not limited to the above embodiments. Those skilled in the art can make equivalent deformations or substitutions without departing from the spirit of the present utility model. These equivalent deformations or substitutions are all included in the scope defined by the claims of this application.
Claims
1. A silk screen printing table, characterized in that, Comprising: A machine table (100) provided with a plurality of guide wheels (200); Multiple groups of cooperating guide posts (300) and guide sleeves (400), the guide sleeves (400) are respectively arranged at the edges of the machine table (100), the lower ends of all the guide posts (300) extend below the guide wheels (200), the upper ends of all the guide posts (300) are connected with a support frame (500), and the support frame (500) is used for supporting the screen printing frame and the screen printing mechanism; A rotation driving mechanism (600) is arranged below the machine table (100), the output end of the rotation driving mechanism (600) is connected with a rotation shaft (610), both ends of the rotation shaft (610) are wound with a plurality of traction members (700), one end of the traction member (700) bypasses the guide wheel (200) and is connected with the lower end of the guide post (300) to drive the screen printing frame and the screen printing mechanism to lift; An encoder (800) is in transmission connection with the rotation driving mechanism (600) or the rotation shaft (610) to detect the stroke of the screen printing frame and the screen printing mechanism.
2. A silk screen printing table according to claim 1, characterized in that: The traction member (700) is a chain, and the other end of the chain is wound around the rotation shaft (610) through a first sprocket (611).
3. A silk screen printing table according to claim 1 or 2, characterized in that: The guide wheel (200) is a second sprocket.
4. A screen printing table according to claim 1, characterized in that: One end of the traction member (700) is connected with the lower end of the guide post (300) through an adjusting assembly (900).
5. A silk screen printing table according to claim 4, characterized in that: The adjusting assembly (900) includes a screw rod and two nuts. A connecting plate is arranged at the lower end of the guide post (300). The screw rod is in threaded connection with the connecting plate, and both ends of the screw rod are locked on the connecting plate through the two nuts. One end of the traction member (700) is connected with one end of the screw rod.
6. The screen printing table according to claim 1, wherein: The machine table (100) includes a table top (110), the rotation shaft (610) and the guide wheel (200) are both arranged below the table top (110), and the rotation shaft (610) is below the guide wheel (200).
7. A silk screen printing table according to claim 1 or 6, characterized in that: The rotation shaft (610) is connected with the machine table (100) through a bearing seat (120), the rotation driving mechanism (600) is connected with the machine table (100), and the output end of the rotation driving mechanism (600) is in transmission connection with the rotation shaft (610) through a speed reducer (620).
8. A silk-screen printing table according to claim 1, characterized in that: Two counting discs (612) are sleeved on the rotation shaft (610), two induction switches (130) are arranged on the machine table (100), the two counting discs (612) are respectively arranged in cooperation with the two induction switches (130), the notches of the two counting discs (612) respectively correspond to the starting position and the ending position of the rotation shaft (610), and the two induction switches (130) are respectively used for sensing the starting position and the ending position of the rotation shaft (610) to control the start and stop of the rotation driving mechanism (600).