Pad printing machine

Abstract

The utility model discloses a pad printing machine. The pad printing machine comprises a rack, a supporting bracket, a printing and connecting platform and a pad printing rubber head, a transverse moving groove is formed in the machine frame, a transverse moving block is slidably installed in the transverse moving groove, the transverse moving block can be driven by a driving device to slide along the transverse moving groove, a longitudinal sliding groove is formed in the transverse moving block, a longitudinal sliding block is slidably installed in the longitudinal sliding groove, and a sliding cylinder is fixedly arranged on the side wall of the longitudinal sliding block. A cylindrical sliding groove in sliding fit with the sliding cylinder is formed in the rack, and in the moving process of the transverse moving block, the sliding cylinder slides along the cylindrical sliding groove, and then the longitudinal sliding block is driven to slide along the longitudinal sliding groove. The bottom end of the longitudinal sliding block is detachably provided with a transfer printing rubber head through a connecting structure. Through the arrangement of the sliding cylinder and the cylinder sliding groove, material dipping and pad printing operation of the pad printing rubber head can be achieved only through one driving motor, and energy consumption is low; through the arrangement of the connecting structure, the transfer printing rubber head can be unlocked or locked by rotating the rotary knob, and the replacement speed is increased.

Description

Technical Field

[0001] This utility model relates to the field of pad printing machine technology, and in particular to a pad printing machine. Background Technology

[0002] Pad printing machines are printing equipment suitable for plastics, toys, glass, metals, ceramics, electronics, IC packaging, etc. Pad printing is an indirect concave pad printing technology, which has become a major method for printing and decorating the surfaces of various objects. With the development of society, pad printing machines have been put into use in large quantities.

[0003] For example, Chinese utility model patent CN222223734U discloses a pad printing mechanism. This mechanism has a relatively simple structure, a high degree of automation, and synchronized movement of the ink cartridge and the pad printing head, eliminating the time delay problem caused by the independent movement of the ink cartridge and the pad printing head in existing technologies. However, such a structure still has the following significant drawbacks:

[0004] 1. The movement of the pad printing head is achieved by two motors, a horizontal drive motor and a vertical drive motor, which consumes a lot of energy;

[0005] 2. The pad printing heads of existing pad printing machines are mostly fixed with multiple bolts, which makes it inconvenient to replace and install the pad printing heads. Summary of the Invention

[0006] This utility model aims to solve one of the technical problems existing in the prior art.

[0007] This application provides a pad printing machine, including a frame, a support bracket, a printing platform, and a pad printing head; the frame is provided with a transverse moving groove, and a transverse moving block is slidably installed in the transverse moving groove. A driving device can drive the transverse moving block to slide along the transverse moving groove. The transverse moving block is provided with a longitudinal sliding groove, and a longitudinal slider is slidably installed in the longitudinal sliding groove. A sliding cylinder is fixed on the side wall of the longitudinal slider. The frame is provided with a cylindrical sliding groove that slides with the sliding cylinder. During the movement of the transverse moving block, the sliding cylinder slides along the cylindrical sliding groove, thereby driving the longitudinal slider to slide along the longitudinal sliding groove.

[0008] The bottom of the longitudinal slider is detachably fitted with a pad printing head via a connecting structure.

[0009] Furthermore, the cylindrical slide groove includes a straight slide groove and an inclined slide groove. Both ends of the straight slide groove are connected to the inclined slide groove, and the end of the inclined slide groove closer to the straight slide groove is higher than the other end.

[0010] The straight slide groove is parallel to the transverse moving groove.

[0011] Furthermore, the transverse moving groove is a dovetail groove, and the transverse moving block is a dovetail block that slides with the transverse moving groove.

[0012] Furthermore, the drive device includes a drive motor, a rotating lead screw and a lead screw nut. The rotating lead screw is rotatably installed in the transverse moving groove, and the drive motor is fixedly installed on the frame. The output shaft of the drive motor extends into the transverse moving groove and is fixedly connected to the rotating lead screw. The lead screw nut, which is threadedly connected to the rotating lead screw, is fixedly installed on the transverse moving block.

[0013] Furthermore, the connection structure includes a bidirectional lead screw, a connecting block, a locking block, and a plug-in block. The top of the pad printing head is fixedly provided with a plug-in block, and the bottom of the longitudinal slider is provided with a plug-in groove that slides with the plug-in block. The longitudinal slider is provided with an installation cavity that communicates with the plug-in groove. The bidirectional lead screw is rotatably installed in the installation cavity. One end of the bidirectional lead screw extends out of the installation cavity and is fixedly connected to a knob. A pair of connecting blocks are slidably installed in the installation cavity. The connecting blocks are provided with threaded holes and are threaded to both ends of the bidirectional lead screw. The plug-in block is provided with a locking groove, and each of the pair of connecting blocks is provided with a locking block at one end facing each other. The locking blocks can be inserted into the corresponding locking grooves.

[0014] Furthermore, a gear is fixedly installed at the end of the bidirectional lead screw away from the knob, and a mounting groove communicating with the mounting cavity is provided in the longitudinal slider, with a resistance device provided in the mounting groove.

[0015] Furthermore, the resistance device includes a spring and a resistance block. The resistance block is slidably installed in the mounting groove. One end of the resistance block abuts against the tooth groove of the gear, and the other end is connected to the bottom of the mounting groove through a spring. The spring is in a compressed state.

[0016] Furthermore, the plug-in block is provided with a guide block, and the longitudinal slider is provided with a guide groove that slides with the guide block.

[0017] The beneficial effects of this utility model are as follows:

[0018] 1. By setting up a sliding cylinder and a cylindrical groove, only one drive motor is needed to realize the pad printing head's dipping and pad printing operations, resulting in low energy consumption;

[0019] 2. With the connection structure, the pad printing head can be locked or unlocked simply by turning the knob. Compared with the traditional method of fixing with a large number of bolts, this greatly improves the speed of replacing and installing the pad printing head and makes it more convenient. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the structure of a pad printing machine according to an embodiment of this application;

[0021] Figure 2 This is a schematic diagram of the structure of some of the frames, drive devices, sliding cylinders and cylindrical grooves in the embodiments of this application;

[0022] Figure 3 for Figure 2A schematic diagram of the cross-sectional structure along the AA direction;

[0023] Figure 4 for Figure 2 A schematic diagram of the cross-sectional structure along the BB direction;

[0024] Figure 5 for Figure 4 A schematic diagram of the cross-sectional structure along the CC direction;

[0025] Figure 6 for Figure 1 A schematic diagram of the cross-sectional structure along the DD direction.

[0026] Figure Labels

[0027] 1-Frame, 2-Support bracket, 3-Printing platform, 4-Pad printing head, 51-Transverse moving groove, 52-Transverse moving block, 53-Longitudinal slide groove, 54-Longitudinal slider, 55-Sliding cylinder, 56-Cylindrical slide groove, 561-Straight slide groove, 562-Angled slide groove, 6-Drive device, 61-Drive motor, 62-Rotating screw, 63-Screw nut, 7-Connecting structure, 71-Plug-in block, 72-Plug-in groove, 73-Mounting cavity, 74-Bidirectional screw, 75-Knob, 76-Connecting block, 77-Slot, 78-Slot block, 81-Gear, 82-Mounting groove, 83-Resistance device, 831-Spring, 832-Resistance block, 91-Guide block, 92-Guide groove. Detailed Implementation

[0028] The technical solutions of the embodiments of this application will be clearly described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this application. All other embodiments obtained by those skilled in the art based on the embodiments of this application are within the scope of protection of this application.

[0029] The terms "first," "second," etc., used in the specification and claims of this application are used to distinguish similar objects and not to describe a specific order or sequence. It should be understood that such use of data can be interchanged where appropriate so that embodiments of this application can be implemented in orders other than those illustrated or described herein, and the objects distinguished by "first," "second," etc., are generally of the same class and the number of objects is not limited; for example, a first object can be one or more. Furthermore, in the specification and claims, "and / or" indicates at least one of the connected objects, and the character " / " generally indicates that the preceding and following objects are in an "or" relationship.

[0030] The following description, in conjunction with the accompanying drawings, details a pad printing machine provided in this application through specific embodiments and application scenarios.

[0031] Example 1:

[0032] like Figures 1 to 4 As shown, this application embodiment provides a pad printing machine, including a frame 1, a support bracket 2, a printing platform 3, and a pad printing head 4; the frame 1 is provided with a transverse moving groove 51, and a transverse moving block 52 is slidably installed in the transverse moving groove 51. The transverse moving block 52 can be driven to slide along the transverse moving groove 51 by a driving device 6. The transverse moving block 52 is provided with a longitudinal sliding groove 53, and a longitudinal slider 54 is slidably installed in the longitudinal sliding groove 53. A sliding cylinder 55 is fixed on the side wall of the longitudinal slider 54. The frame 1 is provided with a cylindrical sliding groove 56 that slides with the sliding cylinder 55. During the movement of the transverse moving block 52, the sliding cylinder 55 slides along the cylindrical sliding groove 56, thereby driving the longitudinal slider 54 to slide along the longitudinal sliding groove 53; wherein, the pad printing head 4 is detachably installed at the bottom end of the longitudinal slider 54 through a connecting structure 7.

[0033] Furthermore, the cylindrical slide 56 includes a straight slide 561 and an inclined slide 562. Both ends of the straight slide 561 are connected to the inclined slide 562. The end of the inclined slide 562 closer to the straight slide 561 is higher than the other end. The straight slide 561 is parallel to the transverse moving groove 51.

[0034] Furthermore, the transverse moving groove 51 is a dovetail groove, and the transverse moving block 52 is a dovetail block that slides with the transverse moving groove 51.

[0035] Furthermore, the drive device 6 includes a drive motor 61, a rotating lead screw 62 and a lead screw nut 63. The rotating lead screw 62 is rotatably installed in the transverse moving groove 51. The drive motor 61 is fixedly installed on the frame 1. The output shaft of the drive motor 61 extends into the transverse moving groove 51 and is fixedly connected to the rotating lead screw 62. The lead screw nut 63, which is threadedly connected to the rotating lead screw 62, is fixedly installed on the transverse moving block 52.

[0036] In this embodiment of the application, due to the aforementioned structure, a support bracket 2 is fixedly installed on the frame 1, and a printing platform 3 is fixedly installed on the support bracket 2. The printing platform 3 is used to place the object to be printed. The frame 1 is provided with a dipping area. In the initial state, the sliding cylinder 55 is located in the straight slide groove 561. When the operator fixes the object to be printed on the printing platform 3 and presses the external start button, the drive motor 61 starts, driving the rotating lead screw 62 to rotate clockwise. Since a lead screw nut 63 that is threadedly connected to the rotating lead screw 62 is fixedly installed on the transverse moving block 52, Therefore, rotating the lead screw 62 clockwise can drive the transverse moving block 52 and the longitudinal slider 54 to slide in the direction of the drive motor 61. During the sliding of the transverse moving block 52, the sliding cylinder 55 slides in the straight slide groove 561 until the sliding cylinder 55 is located in the inclined slide groove 562 near the end of the drive motor 61. Under the action of the inclined slide groove 562, the sliding cylinder 55 will drive the longitudinal slider 54 to slide downward. When the sliding cylinder 55 slides to the end of the inclined slide groove 562 near the drive motor 61, the bottom of the pad printing head 4 contacts the dipping area to achieve dipping.

[0037] After the ink is applied, the drive motor 61 reverses, causing the rotating lead screw 62 to rotate counterclockwise. Since the lateral moving block 52 is fixedly installed with a lead screw nut 63 that is threadedly connected to the rotating lead screw 62, the counterclockwise rotation of the rotating lead screw 62 can drive the lateral moving block 52 and the longitudinal slider 54 to slide in the direction of the printing platform 3. During the sliding process of the lateral moving block 52, the sliding cylinder 55 first slides in the inclined slide groove 562 near the end of the drive motor 61, causing the longitudinal slider 54 to slide upward, and then slides in the straight slide groove 561 until the sliding cylinder 55 is located in the inclined slide groove 562 away from the drive motor 61. Under the action of the inclined slide groove 562, the sliding cylinder 55 will drive the longitudinal slider 54 to slide downward. When the sliding cylinder 55 slides to the end of the inclined slide groove 562 away from the drive motor 61, the bottom of the printing head 4 is in close contact with the object to be printed, thus realizing the printing process.

[0038] After the pad printing is completed, the drive motor 61 reverses and drives the rotating lead screw 62 to rotate clockwise. Since the lead screw nut 63, which is threadedly connected to the rotating lead screw 62, is fixedly installed on the transverse moving block 52, the clockwise rotation of the rotating lead screw 62 can drive the transverse moving block 52 and the longitudinal slider 54 to slide in the direction of the drive motor 61. During the sliding process of the transverse moving block 52, the sliding cylinder 55 first slides in the inclined slide groove 562 at the end away from the drive motor 61, driving the longitudinal slider 54 to slide upward, and then slides back into the straight slide groove 561 to complete the reset.

[0039] The longitudinal slider 54 is provided with a limiting block, and the longitudinal slide groove 53 is provided with a limiting groove that slides with the limiting block. This ensures that the longitudinal slider 54 will not separate from the longitudinal slide groove 53 during the sliding of the transverse moving block 52. The longitudinal sliding height of the longitudinal slider 54 is greater than the longitudinal distance from the highest point to the lowest point of the cylindrical slide groove 56.

[0040] The transverse moving groove 51 is a dovetail groove, and the transverse moving block 52 is a dovetail block that slides with the transverse moving groove 51, so that the transverse moving block 52 is always embedded in the transverse moving groove 51, thereby improving its stability during use.

[0041] Example 2:

[0042] like Figure 5 and Figure 6 As shown, in this embodiment, in addition to the structural features of the aforementioned embodiments, the connecting structure 7 includes a bidirectional lead screw 74, a connecting block 76, a locking block 78, and an insertion block 71. The top of the pad printing head 4 is fixedly provided with the insertion block 71. The bottom of the longitudinal slider 54 is provided with an insertion groove 72 that slides with the insertion block 71. The longitudinal slider 54 is provided with an installation cavity 73 that communicates with the insertion groove 72. The bidirectional lead screw 74 is rotatably installed in the installation cavity 73. One end of the bidirectional lead screw 74 extends out of the installation cavity 73 and is fixedly connected to a knob 75. A pair of connecting blocks 76 are slidably installed in the installation cavity 73. The connecting blocks 76 are provided with threaded holes and are respectively threaded to both ends of the bidirectional lead screw 74. The insertion block 71 is provided with a locking groove 77. Each of the pair of connecting blocks 76 is provided with a locking block 78 at one end facing each other. The locking blocks 78 can be inserted into the corresponding locking groove 77.

[0043] Furthermore, a gear 81 is fixedly installed at the end of the bidirectional lead screw 74 away from the knob 75, and a mounting groove 82 communicating with the mounting cavity 73 is provided in the longitudinal slider 54, and a resistance device 83 is provided in the mounting groove 82.

[0044] Furthermore, the resistance device 83 includes a spring 831 and a resistance block 832. The resistance block 832 is slidably installed in the mounting groove 82. One end of the resistance block 832 abuts against the tooth groove of the gear 81, and the other end is connected to the bottom of the mounting groove 82 through the spring 831. The spring 831 is in a compressed state.

[0045] Furthermore, the plug-in block 71 is provided with a guide block 91, and the longitudinal slider 54 is provided with a guide groove 92 that slides with the guide block 91.

[0046] In this embodiment of the application, due to the above-described structure, the bidirectional lead screw 74 is a lead screw with opposite thread directions at both ends. When it is necessary to replace the pad printing head 4, by rotating the knob 75 clockwise, the knob 75 drives the bidirectional lead screw 74 to rotate clockwise synchronously. The clockwise rotation of the bidirectional lead screw 74 drives a pair of connecting blocks 76 to move away from each other, thereby causing the locking block 78 to disengage from the corresponding locking slot 77. At this time, the pad printing head 4 can be removed. Then, the guide block 91 and the insertion block 71 on another model of pad printing head 4 are respectively aligned with the guide groove 92 and the insertion groove 72. The insertion block 71 is fully inserted into the insertion groove 72. At this time, the locking slot 77 and the locking block 78 are aligned. Rotating the knob 75 counterclockwise, the knob 75 drives the bidirectional lead screw 74 to rotate counterclockwise synchronously. The counterclockwise rotation of the bidirectional lead screw 74 drives a pair of connecting blocks 76 to move closer together, so that a pair of locking blocks 78 are re-inserted into the corresponding locking slot 77, thereby completing the replacement.

[0047] A gear 81 is fixedly installed at the end of the bidirectional lead screw 74 away from the knob 75. Under the action of the spring 831, the top of the resistance block 832 abuts against the tooth groove of the gear 81, generating appropriate resistance to the rotation of the gear 81, thereby preventing the bidirectional lead screw 74 from rotating and causing the printing pad 4 to disengage from the longitudinal slider 54, thus improving the stability after installation.

[0048] It should be noted that, in this document, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes that element. Furthermore, it should be noted that the scope of the methods and apparatuses in the embodiments of this application is not limited to performing functions in the order shown or discussed, but may also include performing functions substantially simultaneously or in the reverse order, depending on the functions involved. For example, the described methods may be performed in a different order than described, and various steps may be added, omitted, or combined. Additionally, features described with reference to certain examples may be combined in other examples.

[0049] The embodiments of this application have been described above with reference to the accompanying drawings. However, this application is not limited to the specific embodiments described above. The specific embodiments described above are merely illustrative and not restrictive. Those skilled in the art can make many other forms under the guidance of this application without departing from the spirit and scope of the claims, and all of these forms are within the protection scope of this application.

Claims

1. A pad printer comprising a frame, a support stand, a print interface platform and a pad, characterized in that, The rack is provided with a transverse moving groove, a transverse moving block is slidably installed in the transverse moving groove, the transverse moving block can be driven to slide along the transverse moving groove by a driving device, the transverse moving block is provided with a longitudinal sliding groove, a longitudinal sliding block is slidably installed in the longitudinal sliding groove, a sliding cylinder is fixedly arranged on the side wall of the longitudinal sliding block, the rack is provided with a cylindrical sliding groove in sliding cooperation with the sliding cylinder, and the sliding cylinder slides along the cylindrical sliding groove in the process of movement of the transverse moving block, thereby driving the longitudinal sliding block to slide along the longitudinal sliding groove. The longitudinal sliding block is detachably installed with a pad printing rubber head at the bottom end through a connecting structure.

2. Pad printer according to claim 1, characterized in that The cylindrical sliding groove comprises a straight sliding groove and an inclined sliding groove, the straight sliding groove is communicated with the inclined sliding groove at both ends, and the end of the inclined sliding groove close to the straight sliding groove is higher than the other end. The straight sliding groove is parallel to the transverse moving groove.

3. Pad printer according to claim 1, characterized in that The transverse moving groove is a dovetail groove, and the transverse moving block is a dovetail block in sliding cooperation with the transverse moving groove.

4. The pad printer of claim 1, wherein The driving device comprises a driving motor, a rotating screw rod and a screw nut, the rotating screw rod is rotatably installed in the transverse moving groove, the driving motor is fixedly installed on the rack, the output shaft of the driving motor extends into the transverse moving groove and is fixedly connected with the rotating screw rod, and the screw nut in screw connection with the rotating screw rod is fixedly installed on the transverse moving block.

5. The pad printer of claim 1, wherein The connecting structure comprises a bidirectional screw rod, a connecting block, a clamping block and a plug-in block, the plug-in block is fixedly arranged at the top end of the pad printing rubber head, the bottom end of the longitudinal sliding block is provided with a plug-in groove in sliding cooperation with the plug-in block, the longitudinal sliding block is provided with an installation cavity in communication with the plug-in groove, the bidirectional screw rod is rotatably installed in the installation cavity, one end of the bidirectional screw rod extends out of the installation cavity and is fixedly connected with a knob, a pair of connecting blocks are slidably installed in the installation cavity, the connecting blocks are provided with threaded holes and are respectively screwed to the two ends of the bidirectional screw rod, the plug-in block is provided with a clamping groove, and the opposite ends of the pair of connecting blocks are provided with clamping blocks which can be plugged into the corresponding clamping grooves.

6. Pad printer according to claim 5, characterized in that The end of the bidirectional screw rod away from the knob is fixedly installed with a gear, the longitudinal sliding block is provided with an installation slot in communication with the installation cavity, and the installation slot is provided with a resistance device.

7. Pad printer according to claim 6, characterized in that The resistance device comprises a spring and a resistance block, the resistance block is slidably installed in the installation slot, one end of the resistance block abuts in a gear slot of the gear, the other end of the resistance block is connected with the bottom of the installation slot through the spring, and the spring is in a compressed state.

8. The pad printer of claim 5, wherein, The plug-in block is provided with a guide block, and the longitudinal sliding block is provided with a guide groove in sliding cooperation with the guide block.

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