An automatic support mechanism for DEK printing press

Abstract

The present invention discloses an automatic support mechanism for a DEK printer, comprising a main body, a magnet holder, a magnet, a rotating motor, a screw, a hook plate, a pull-out plate, a support rod, a spring, and a position sensor. Through the above-described method, the automatic support mechanism for a DEK printer of the present invention utilizes multiple support rods to provide precise and stable support for various circuit boards, meeting the requirements of different circuit board applications while also reducing production costs and maintenance costs.

Description

Technical Field

[0001] The invention relates to the technical field of SMT surface mounting production lines, in particular to an automatic supporting mechanism for a DEK printer. Background Art

[0002] When a DEK printer applies solder paste to a circuit board, it requires a matching support to hold the board in place. Otherwise, the printed circuit board will exhibit defects such as short circuits and excessive soldering. Therefore, a custom DEK support block is required for each board model, which is then installed on the printer platform during production.

[0003] However, this operation also has the following disadvantages:

[0004] a. There are many types and models of products, and many support blocks need to be customized, which also costs a lot of money.

[0005] b. Too many support blocks require a lot of storage space and manpower to manage and maintain.

[0006] c. The product production volume is very small each time, and frequent line changes are required, which causes the operator to frequently disassemble and assemble the support blocks, increasing the operator's workload and line change time. Summary of the Invention

[0007] The main technical problem solved by the present invention is to provide an automatic support mechanism for DEK printing presses, which has the advantages of high reliability, precise positioning, compact structure, etc., and has broad market prospects in the application and popularization of DEK printing presses.

[0008] In order to solve the above technical problems, a technical solution adopted by the present invention is:

[0009] Provided is an automatic support mechanism for a DEK printing press, comprising: a main body, a magnet seat, a magnet, a driving device, a hook plate, a pull plate, a support rod, a spring, and a position sensor for sensing the lifting position of the printing press platform.

[0010] The bottom surface of the main body is provided with the magnet seat, and a magnet is provided on the magnet seat. The pull-out plate is movably provided in the push-pull groove on the main body, and the pull-out plate is provided with a movable locking hole movably connected to the support rod. The lower part of the support rod is elastically provided in the main body through the spring, and the upper end of the support rod passes through the movable locking hole and the top surface of the main body. The hook plate is respectively connected to the driving device and the pull-out plate, and the driving device drives the pull-out plate to move left and right on the main body through the hook plate, so that the movable locking hole clamps or loosens the side wall of the support rod to complete the unlocking or locking of the support rod.

[0011] In a preferred embodiment of the present invention, the main body includes a fixed plate, a wall panel, a sealing plate, and an upper plate. The wall panel is arranged on both sides of the fixed plate, the sealing plate is arranged at one end or both ends of the fixed plate, and the upper plate is arranged on the top surface of the wall panel and the sealing plate.

[0012] In a preferred embodiment of the present invention, a through hole is provided on the top surface of the main body to allow the support rod to pass through.

[0013] In a preferred embodiment of the present invention, the support rods correspond to the movable locking holes one by one.

[0014] In a preferred embodiment of the present invention, the support rod includes a stainless steel pin body and a soft rubber layer wrapped around the outer wall of the pin body.

[0015] In a preferred embodiment of the present invention, the driving device includes a rotary motor and a screw connected to the rotary motor, the hook plate is threadedly connected to the screw, and the rotary motor drives the hook plate to move left and right along the screw through the screw.

[0016] In a preferred embodiment of the present invention, the rotating motor is connected to the main body via a motor fixing plate, and a protective cover is provided on the upper cover of the rotating motor.

[0017] In a preferred embodiment of the present invention, the driving device is connected to a power supply and a PLC module to control the movement of the driving device through sensor signals.

[0018] In a preferred embodiment of the present invention, the hook plate is movably connected to the main body through a guide rod, and an upper baffle that cooperates with the pull-out plate to limit the position is provided on the main body located in the locking direction of the pull-out plate.

[0019] In a preferred embodiment of the present invention, the position sensor is disposed on the main body via a sensor bracket.

[0020] The beneficial effects of the present invention are: by using multiple support rods to accurately and stably support various circuit boards, the use requirements of different circuit boards can be met, and the production cost and personnel maintenance cost can be reduced. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly introduces the drawings required for describing the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. Those skilled in the art can also derive other drawings based on these drawings without inventive work, among which:

[0022] Figure 1 This is a structural schematic diagram of a preferred embodiment of an automatic support mechanism for a DEK printing press according to the present invention;

[0023] Figure 2 This is a schematic diagram of the three-dimensional structure of a preferred embodiment of an automatic support mechanism for a DEK printing press according to the present invention;

[0024] Figure 3 It is a side structural schematic diagram of a preferred embodiment of an automatic support mechanism for a DEK printing press of the present invention. DETAILED DESCRIPTION

[0025] The following is a clear and complete description of the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0026] See also Figure 1-3 , embodiments of the present invention include:

[0027] An automatic support mechanism for a DEK printing press comprises: a main body 1, a magnet seat 2, a magnet, a rotating motor 3, a screw 4, a hook plate 5, a pull plate 6, a support rod 7, a spring 8, and a position sensor.

[0028] The main body includes a fixing plate, a wall plate, a sealing plate, and an upper plate 12. The wall plate is arranged on both sides of the fixing plate, the sealing plate is arranged at one end or both ends of the fixing plate, and the upper plate is arranged on the top surface of the wall plate and the sealing plate.

[0029] The bottom surface of the main body (fixed plate) is provided with the magnetic seat, and the magnet 13 is provided on the magnetic seat. The user can magnetically connect the main body to the printing press platform according to actual use requirements, which is convenient for disassembly, assembly and use.

[0030] The pull-out plate is movably mounted within a push-pull slot on the upper portion of the main body (wall panel). The pull-out plate is provided with movable locking holes 11 that correspond one-to-one with the support rods. The support rods are elastically mounted to the bottom of the main body (fixed plate) via the springs, and the upper ends of the support rods pass through the movable locking holes and through-holes on the top surface of the main body (upper plate).

[0031] The support rod includes a stainless steel pin body and a soft rubber layer wrapped around the outer wall of the pin body, which not only plays a buffering role, but also increases friction and improves the locking effect and stability.

[0032] The main body can be equipped with 123 support rods, allowing them to cover 80% of the area of all circuit boards, making it suitable for all product models. Each support rod is equipped with a spring. When the support rod contacts the circuit board, if there are components on the circuit board, the support rod will retract due to the pressure after hitting the component surface. This can not only support the circuit board, but also avoid the components on the circuit board to prevent damage.

[0033] The top of the hook plate is connected to one end of the pull-out plate, and the hook plate is threadedly connected to the screw through a nut. The output shaft of the rotating motor is connected to the screw, and the rotation of the screw drives the hook plate to move left and right along the screw, thereby driving the pull-out plate to move left and right on the main body, so that the movable lock hole clamps or loosens the side wall of the support rod to unlock or lock the support rod.

[0034] Among them, the hook plate can be movably connected to the closing plate of the main body through a guide rod to further improve the accuracy and stability of the movement of the hook plate and the pull-out plate. In addition, an upper baffle 10 is provided on the main body located in the locking direction of the pull-out plate to prevent the pull-out plate from damaging the circuit board due to excessive movement.

[0035] The rotating motor is mounted on the outside of one end of the main body via a motor mounting plate. A protective cover is provided on the motor's upper cover. Alternatively, the motor and screw can be replaced with a cylinder and solenoid valve, connected to the air pressure of a DEK printer. The cylinder, connected to the hook plate, drives the pull-out plate to lock or release the support rod. When the support rod is locked, it supports the printed circuit board.

[0036] When the shaft of the rotating motor rotates clockwise, the hook plate moves to the left, and the hook plate drives the pull-out plate to move to the left and locks the support rod; when the shaft of the rotating motor rotates counterclockwise, the hook plate moves to the right, and the hook plate drives the pull-out plate to move to the right and then releases the support rod, and the support rod resets upward due to the elastic force of the spring.

[0037] A position sensor is configured on the main body or the motor fixing plate. The position sensor is installed and connected through the sensor bracket 9. The position sensor is used to sense the rise and fall of the DEK printing press platform. It outputs a signal when the platform rises and disconnects the signal when the platform falls.

[0038] The main body is equipped with a power supply and a PLC module to receive sensor signals and use the signals to control the motor or cylinder to lock or release the support rod.

[0039] The working process of an automatic support mechanism for a DEK printing press includes:

[0040] (1) The main body is magnetically attracted to the target position, and the sensor detects the position of the DEK printing platform; the DEK printing platform has three heights: the board height, the visual inspection height (detection of the circuit board positioning point) and the printing height.

[0041] (2) When the sensor detects that the DEK printing platform moves to the waiting height, the circuit board is not in contact with the support rod and the support rod is not locked;

[0042] (3) When the sensor detects that the DEK printing platform moves to the visual inspection height, the circuit board contacts the support rod, the support rod is not locked, and the support rod will retract due to pressure after touching the component surface to prevent damage to the component;

[0043] (4) When the sensor detects that the DEK printing platform moves to the printing height, it feeds back the signal to the PLC, which controls the on and off of the rotary motor to drive the pull-out plate to move to the left, so that the support rod is locked to support the circuit board printing.

[0044] The beneficial effects of the automatic support mechanism for a DEK printing press of the present invention are:

[0045] 1. By using multiple support rods to accurately and stably support the circuit board, the original support block can be completely replaced (a support block is customized for each model of circuit board). The height and position of the support can be set according to the model of various circuit boards to meet the use requirements of different circuit boards.

[0046] 2. There is no need to customize a support block for each model of circuit board, which can save a lot of capital investment.

[0047] 3. After the original support block is cancelled, it can save space, reduce management difficulty and reduce personnel maintenance costs.

[0048] The above descriptions are merely embodiments of the present invention and are not intended to limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made using the contents of the present invention specification, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. An automatic support mechanism for a DEK printing press, characterized in that: include: Main body, magnet seat, magnet, driving device, hook plate, pull-out plate, support rod, spring and position sensor for sensing the lifting position of printing press platform, The bottom surface of the main body is provided with the magnet seat, and the magnet seat is provided with a magnet. The pull-out plate is movably provided in the push-pull groove on the main body, and the pull-out plate is provided with a movable locking hole movably connected to the support rod. The lower part of the support rod is elastically provided in the main body by the spring, and its upper end passes through the movable locking hole and the top surface of the main body. The hook plate is connected to the driving device and the pull-out plate respectively, and the driving device drives the pull-out plate to move left and right on the main body through the hook plate, so that the movable locking hole clamps or loosens the side wall of the support rod to complete the unlocking or locking of the support rod. A through hole is provided on the top surface of the main body to allow the support rod to pass through, and the support rod corresponds to the movable locking hole one by one.

2. The automatic support mechanism for a DEK printing press according to claim 1, characterized in that: The main body includes a fixing plate, a wall plate, a sealing plate, and an upper plate. The wall plate is arranged on both sides of the fixing plate, the sealing plate is arranged at one end or both ends of the fixing plate, and the upper plate is arranged on the top surfaces of the wall plate and the sealing plate.

3. The automatic support mechanism for a DEK printing press according to claim 1, characterized in that: The support rod includes a stainless steel pin body and a soft rubber layer wrapped on the outer wall of the pin body.

4. The automatic support mechanism for a DEK printing press according to claim 1, characterized in that: The driving device includes a rotary motor and a screw connected to the rotary motor. The hook plate is threadedly connected to the screw. The rotary motor drives the hook plate to move left and right along the screw through the screw.

5. The automatic support mechanism for a DEK printing press according to claim 4, characterized in that: The rotating motor is connected to the main body through a motor fixing plate, and a protective cover is provided on the upper cover of the rotating motor.

6. The automatic support mechanism for a DEK printing press according to claim 1, characterized in that: The driving device is connected to a power supply and a PLC module to control the movement of the driving device through sensor signals.

7. The automatic support mechanism for a DEK printing press according to claim 1, characterized in that: The hook plate is movably connected to the main body through a guide rod, and an upper baffle that cooperates with the pull-out plate to limit position is provided on the main body located in the locking direction of the pull-out plate.

8. The automatic support mechanism for a DEK printing press according to claim 1, characterized in that: The position sensor is arranged on the main body through the sensor bracket.

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