Automatic pin extraction method for molding machine

Abstract

The invention relates to the technical field related to PCB forming and drilling, and specifically to an automatic pin extraction method for a forming machine; a wood pulp board and an electric board are fixed on a workbench by a cylinder, drilling and pin implanting operations are performed on the fixed wood pulp board and the electric board in turn, and pin pushing, hole enlarging and pin extraction operations are performed on the electric board in turn by a secondary claw mechanism to complete automatic pin extraction. The method pushes the pin items out of the electric board by the secondary claw mechanism, and enlarges the holes of the electric board, so that the pin items can be easily clamped by the secondary claw mechanism, thereby solving the problem that the automatic pin extraction cannot be 100% extracted because the pins are implanted in a tight-fitting manner.

Description

Technical Field

[0001] The present invention relates to the technical field related to PCB molding and drilling, and in particular to an automatic pin extraction method of a molding machine. Background Art

[0002] At present, the main method of removing pins on PCB forming machines is manual. The front edge of the pin is clamped with hydraulic pliers, and it is pried up by levers, and then pulled out to separate it from the bakelite board. In addition to the problem of labor consumption, such manual work also has the risk of damaging the pins and the table. In addition, the removed pins may be left on the PCB forming machine due to omissions during subsequent recycling, resulting in the pins being stuck inside the equipment, thereby affecting the operation of the equipment, and in severe cases, the equipment may be damaged.

[0003] Recently, some PCB equipment manufacturers have developed automatic pin extraction mechanisms and functions, but they all have the problem and risk of being unable to extract the pins, or only being able to extract pins of a specific size. This is because the pins are implanted into the pin holes in a tight fit, in order to ensure that the implanted pins will not move in the pin holes, causing the PCB board to move during the molding operation and resulting in molding errors. In order to solve this problem, when making the pin holes, the diameter of the pin holes must be the same as the diameter of the pins, so that there will be no problem of being unable to extract the pins. Such design changes not only increase the risk of the pins loosening in the pin holes, but also make it more likely to cause the risk of product scrapping. Summary of the invention

[0004] The purpose of the present invention is to provide an automatic pin extraction method for a molding machine, aiming to solve the problem that the automatic pin extraction cannot be 100% extracted because the pins are implanted in a tight-fitting manner.

[0005] To achieve the above object, the present invention provides a method for automatically pulling out pins from a molding machine, comprising the following steps:

[0006] The wood pulp board and the bakelite board are fixed on the workbench by means of a cylinder;

[0007] Sequentially drilling and implanting the fixed wood pulp board and bakelite board;

[0008] The auxiliary claw mechanism sequentially performs pin pushing, hole enlarging and pin pulling operations on the bakelite to complete automatic pin pulling.

[0009] The specific method of fixing the wood pulp board and the bakelite board on the workbench by the cylinder is as follows:

[0010] Place the wood pulp board on a work surface, and place the bakelite board on the wood pulp board;

[0011] The bakelite board and the wood pulp board are pressed and fixed by the pressing plate on the cylinder.

[0012] The specific method of drilling and implanting the fixed wood pulp board and bakelite board in sequence is as follows:

[0013] Drilling operations are performed on the bakelite board and the wood pulp board to obtain pin holes, and pins are implanted into the pin holes.

[0014] Among them, the auxiliary claw mechanism sequentially performs pin pushing, hole enlarging and pin pulling operations on the bakelite to complete the specific method of automatic pin pulling:

[0015] Perform secondary drilling on the Pin hole to expand the hole;

[0016] The cylinder is retracted to fix the bakelite board on the wood pulp board again, and the pin is clamped by the pin clamping mechanism of the auxiliary claw mechanism to complete the automatic pin extraction.

[0017] Among them, the size of the reaming drill bit for the reaming operation must be greater than or equal to D+0.05mm.

[0018] The invention discloses an automatic pin pulling method for a molding machine. A wood pulp board and an electric board are placed on a workbench by a cylinder, holes are drilled and pins are implanted on the fixed wood pulp board and the electric board in turn, and pins are pushed, holes are expanded and pins are pulled out by a secondary claw mechanism in turn on the electric board to complete automatic pin pulling. The method pushes the pins out of the electric board by the secondary claw mechanism and expands the holes of the electric board so that the pins can be easily clamped by the secondary claw mechanism, thereby solving the problem that automatic pin pulling cannot be 100% pulled out because the pins are implanted in a tight-fitting manner. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0020] Figure 1 The present invention is a flowchart of a method for automatically pulling out pins from a molding machine.

[0021] Figure 2 It is a flow chart of the specific method of placing the wood pulp board and the bakelite board on the workbench through the cylinder.

[0022] Figure 3 The method is to perform drilling and implanting operations on the fixed wood pulp board and the bakelite board in sequence. Specific method flow chart Specific method flow chart.

[0023] Figure 4 It is a schematic diagram of fixing the wood pulp board and bakelite board on the workbench by the cylinder.

[0024] Figure 5 This is a schematic diagram of pin implantation in bakelite board and wood pulp board.

[0025] Figure 6 It is a schematic diagram of extending the cylinder to lift up the bakelite board and pushing down the pin through the pin pushing mechanism of the auxiliary claw mechanism.

[0026] Figure 7 It is a schematic diagram of performing secondary drilling and hole expansion operation on the Pin hole.

[0027] Figure 8 The cylinder is retracted to fix the bakelite board on the wood pulp board again, and the pin is clamped by the pin clamping mechanism of the auxiliary claw mechanism to complete the schematic diagram of automatic pin extraction.

[0028] In the figure: 1-cylinder, 2-wood pulp board, 3-bakelite board, 4-pin hole, 5-pin pushing mechanism, 6-pin clamping mechanism, 7-pin. DETAILED DESCRIPTION

[0029] Embodiments of the present invention are described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present invention, and should not be construed as limiting the present invention.

[0030] See also Figures 1 to 8 The present invention provides a method for automatically pulling out pins from a molding machine, comprising the following steps:

[0031] S1 fixes the wood pulp board and bakelite board on the workbench through the cylinder;

[0032] Among them, the wood pulp board can be replaced by a plastic board or other soft substrate. There are 4 cylinders around the work surface. The cylinders will lift the bakelite board away from the work surface when they are pushed out. When the cylinders are retracted, the buckles on the cylinders will fix the bakelite board on the work surface as the cylinders are retracted. The Pin is used to fix the PCB board.

[0033] Specific method:

[0034] S11 places the wood pulp board on a work surface, and places the bakelite board on the wood pulp board;

[0035] S12: the bakelite board and the wood pulp board are pressed and fixed by the pressing plate on the cylinder.

[0036] S2 performs drilling and pinning operations on the fixed wood pulp board and the bakelite board in sequence;

[0037] The drilling process is a drilling procedure for one board, and the drilling depth must be at least 1 / 3 of the thickness of the wood pulp board.

[0038] Specific method:

[0039] S21 performs drilling operation on the bakelite board and the wood pulp board to obtain Pin holes, and implants Pins into the Pin holes.

[0040] The value can be entered manually by using a plastic hammer or automatically by a machine.

[0041] S3 performs pin pushing, hole enlarging and pin pulling operations on the bakelite in sequence through the auxiliary claw mechanism to complete automatic pin pulling.

[0042] Specific method:

[0043] S31: the cylinder extends to lift up the bakelite board, and pushes the bakelite board down through the push pin mechanism of the auxiliary claw mechanism;

[0044] Among them, the Pin pushing mechanism on the auxiliary claw mechanism of the Z axis is used to push the Pin item on the bakelite board downward to make it leave the bakelite board, and then the Pin falls on the wood pulp board below.

[0045] S32: drilling the Pin hole for the second time to expand the hole;

[0046] Among them, the size of the reaming drill bit for the reaming operation must be greater than or equal to D+0.05mm.

[0047] S33: the cylinder is retracted to fix the bakelite board on the wood pulp board again, and the pin is clamped by the pin clamping mechanism of the auxiliary claw mechanism to complete the automatic pin extraction.

[0048] The auxiliary claw mechanism on the Z axis is used to clamp the Pin so that the Pin is separated from the wood pulp board and the bakelite board.

[0049] What is disclosed above is only a preferred embodiment of the present invention, and it certainly cannot be used to limit the scope of rights of the present invention. Ordinary technicians in this field can understand that all or part of the processes of the above embodiment and equivalent changes made according to the claims of the present invention still fall within the scope of the invention.

Claims

1. A method for automatically pulling out pins from a molding machine, characterized in that: The following steps are involved: The wood pulp board and the bakelite board are fixed on the workbench by means of a cylinder; Sequentially drilling and implanting the fixed wood pulp board and bakelite board; The auxiliary claw mechanism sequentially performs pin pushing, hole enlarging and pin pulling operations on the bakelite to complete automatic pin pulling; The specific method of completing the automatic pin pulling by sequentially performing pin pushing, hole enlarging and pin pulling operations through the auxiliary claw mechanism is as follows: The cylinder extends to lift up the bakelite board, and pushes down the pin through the pin pushing mechanism of the auxiliary claw mechanism; Perform secondary drilling on the pin holes on the bakelite board to expand the holes; The cylinder is retracted to fix the bakelite board on the wood pulp board again, and the pin is clamped by the pin clamping mechanism of the auxiliary claw mechanism to complete the automatic pin extraction; The size of the reaming drill bit for the reaming operation must be greater than or equal to the pin hole size + 0.05mm.

2. The automatic pin extraction method of a molding machine as claimed in claim 1, characterized in that: The specific method of fixing the wood pulp board and the bakelite board on the workbench by the cylinder is as follows: Place the wood pulp board on a work surface, and place the bakelite board on the wood pulp board; The bakelite board and the wood pulp board are pressed and fixed by the pressing plate on the cylinder.

3. The automatic pin extraction method of a molding machine as claimed in claim 1, characterized in that: The specific method of drilling and implanting the fixed wood pulp board and bakelite board in sequence is as follows: Drilling operations are performed on the bakelite board and the wood pulp board to obtain pin holes, and pins are implanted into the pin holes.

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