KR101274258B1 - The grinding apparatus for gate of injection molding product - Google Patents

Abstract

The present invention relates to a gate mapping apparatus of an injection product for automatically mapping a gate formed on the injection product in the injection molding process.
The gate finishing apparatus of the injection product according to the present invention has a predetermined inner space and has a base portion formed with two guide rails extending side by side in the left and right length direction on the upper surface, and the left and right along the guide rail on the upper surface of the base portion. It is installed to be slidable in the direction and the upper surface is provided with a seating seat for seating the injection product is formed to be removed, the auxiliary support is installed to be adjacent to the seating table to support the injection product with the seating table The movable worktable, the drive motor fixed to the base portion, the rotating screw member is rotated forward and reverse by the drive motor and the sliding hole is provided on the lower surface of the base worktable through the sliding hole formed on the base portion; Protrudes to the inner side of the base and is screwed with the rotating screw member Is a two pneumatic cylinder including a drive unit including a sliding bracket, a support installed on the movable workbench, a cylinder body supported by the support, and a cylinder rod drawn out and drawn downward from the cylinder body toward the seating table. And a coupling panel installed at the lower end of the cylinder rod, and a cushioning panel made of an elastically deformable material installed at the bottom of the coupling panel to press the upper surface of the injection product seated on the seating plate when the cylinder rod is taken out. A fixed unit including a pressurizing plate, an operating motor installed inside the base portion, and driven by the operating motor, protruding upward through the base and the mobile workbench, and seated on the seating table. A cutting unit including a cutting tool for removing a gate of an injection product, and the cutting tool Blowing unit for blowing the cutting chips and dust generated in the process of removing the gate of the injection product into the base portion, and the dust collector for processing the cutting chips and dust is connected through the inner space and the transfer pipe of the base portion It is provided with a dust collecting unit comprising a.
The gate finishing apparatus of the injection product according to the present invention can remove a plurality of gates quickly and neatly, and can reduce the occurrence rate of defects during the finishing process to maximize production efficiency and at the same time prevent the contamination of the workplace where the finishing work is performed. There is this.

Description

The grinding apparatus for gate of injection molding product

The present invention relates to a gate finishing device of an injection product, and more particularly, to a gate mapping device of an injection product for automatically mapping a gate formed on the injection product in the injection molding process.

Typically, when molding a product through injection, one or more gates are formed in the product due to the nature of the injection molding. Since the gate is partially protruding from the surface of the product, the gate may act as an obstacle when the molded product is assembled with other products, and may significantly reduce the exterior quality of the product.

Therefore, after injection molding, a subsequent process for removing the gate portion of the product is performed, and thus the operation of removing the gate of the injection product is called a gate event.

Conventionally, the finishing device is formed in such a way that the finishing device is manually lowered to the worktable on which the product is placed while the gate finishing end mill is inserted into the electric motor chuck, such as a drill machine, for the gate finishing. In addition to the considerable time and manpower required to remove the gate, there is a problem that the gate removal quality and productivity are greatly reduced. In particular, dust or sculptures generated during the gate finishing work scattered in all directions, which greatly damaged or contaminated the working environment.

SUMMARY OF THE INVENTION The present invention has been made to solve the above problems, and an object thereof is to provide a gate mapping device of an injection product that can automatically remove the gate of the injection product.

Another object of the present invention is to remove the gates quickly and neatly in the injection product having a plurality of gates, and the gate finishing device of the injection product that can effectively remove the dust generated during the finishing process to maintain a comfortable working environment To provide.

The gate finishing apparatus of the injection product according to the present invention for achieving the above object has a predetermined inner space and a base portion formed with two guide rails extending side by side in the left and right longitudinal direction on the upper surface, and on the upper surface of the base portion The seating rail is slidably installed along the guide rail and is provided on the upper surface to mount an injection product on which a gate to be removed is formed, and is installed to be adjacent to the seating rod to provide an injection product with the seating rail. It is installed on the upper surface of the base portion is installed on the movable work platform including an auxiliary support for supporting, the drive motor fixed to the base portion, the rotating screw member is rotated forward and reverse by the drive motor and the lower surface of the movable work platform Protrudes inwardly of the base portion through a sliding hole A drive unit including a sliding bracket screwed to all screw members, a support installed on the movable work platform, a cylinder body supported on the support, and a cylinder rod drawn out and drawn downward from the cylinder body toward the seating plate; Including two pneumatic cylinder, a coupling panel installed on the lower end of the cylinder rod, and a cushioning panel of elastically deformable material installed on the lower end of the coupling panel is mounted on the seating plate when the cylinder rod is withdrawn A fixed unit including a pressurizing plate pressurizing the upper surface of the injection product, an operating motor installed inside the base part, and driven by the operating motor to rotate through the base and the mobile workbench, protruding upward of the mobile workbench. Cutting including a cutting tool for removing the gate of the injection molded product seated on the seating A unit, a blowing unit for blowing cutting chips and dust generated in the process of removing the gate of the injection product by the cutting tool into the base part, and connected through an inner space of the base part and a conveying pipe. It is provided with a dust collecting unit including a dust collector for processing cutting chips and dust.

The auxiliary support is spaced apart from the front surface facing the seating by a distance corresponding to the side wall thickness of the side of the seating and the injection product, the lower side of the front support to support the bottom of the sidewall of the injection product A stepped protrusion is formed, and a work hole is formed on the front surface of the auxiliary support to allow the cutting tool to contact the injection product, and the work hole is relatively longer than the length of the gate to accommodate the gate. It is formed long, the pressure plate is a rubber or synthetic resin that is elastically deformable to the coupling panel connected to the cylinder rod, the lower portion of the coupling panel and to prevent damage to the injection product when pressing the injection product And a buffer panel formed of the air blowing unit, wherein the blowing unit includes a compressor and a And a branch block for receiving and distributing axial air into a plurality of air, and an air supply pipe branched from the branch block to extend compressed air toward the cutting tool, wherein the branch block is fixedly installed on an upper surface of the pressurizing plate. The air supply pipe is branched by the number of gates to be removed from the branch block and installed toward each auxiliary support, and the body of the worker is moved to the movable work surface side while the gate is being removed on the upper surface of the base part. It is preferable that a safety sensor is provided to detect entry.

The pressure plate may further include a check valve for allowing the injection product to be in close contact with the pressure plate, in this case, the upper surface of the coupling panel is formed to protrude a predetermined height upwards, a circular border of a predetermined diameter, The seat fastening hole penetrating the upper and lower surfaces of the coupling panel is formed in the center portion of the rim, and two exhaust holes are formed at a position spaced apart from the seat fastening hole by a predetermined distance on the inner region of the rim. An insertion member having a lower end pointed in a conical shape so as to be fixed to the coupling panel through the seat fastening hole, and a sheet member formed on the top of the insertion member and covering the upper surface of the coupling panel to block the exhaust hole. A handle for opening the exhaust hole by lifting the edge of the sheet member upward; It includes a valve seat, wherein the buffer panel is in close contact with the outer surface of the injection product in the pressurizing process of the pressure plate to be able to block the flow of external air into the space formed between the upper surface and the pressure plate of the injection product The sheet member may be formed of a material that is elastically deformable so that the air in the inner space of the pressing plate may be discharged to the outside when the pressure in the inner space of the pressing plate is increased in the pressing process of the pressing plate.

The gate finishing apparatus of the injection product according to the present invention can remove a plurality of gates quickly and neatly, and can reduce the occurrence rate of defects during the finishing process to maximize production efficiency and at the same time prevent the contamination of the workplace where the finishing work is performed. There is this.

1 is a perspective view showing a preferred embodiment of a gate finishing apparatus of an injection product according to the present invention,
Figure 2 is an exploded perspective view showing the base and the mobile workbench of Figure 1,
3 is an exploded perspective view showing a cutting tool and a seating table,
Figure 4 is an exploded perspective view showing a fixing unit and a blowing unit
5 is a cross-sectional view showing a gate mapping process;
6 is a perspective view showing another embodiment of the fixing unit,
7 is a cross-sectional view showing a state in which the product is fixed to the mobile workbench by the fixing unit of FIG.

Hereinafter, with reference to the accompanying drawings will be described in more detail the gate mapping device of the injection product according to the present invention.

1 to 5 illustrate a preferred embodiment of the gate finishing device 100 of the injection product according to the present invention, referring to the drawing, the gate finishing device 100 of the injection product is the base portion 110, The movable worktable 120 slidably coupled to the upper portion of the base 110, the driving unit 130 driving the movable worktable 120 forward and backward on the upper surface of the base 110, and the movable worktable 120. And a fixing unit 140 for pressing downward the upper surface of the injection molded product 10 to be seated therein, a grinding unit for mapping the gate of the injection molded product 10, and scattering of dust toward the cutting unit 160. Blowing unit 170 for supplying air for preventing the dust, and a dust collecting unit for processing the dust generated during the mapping process of the gate.

The base 110 extends upwards a predetermined distance from the ground, and a collecting space is formed therein to collect dust generated in the process of finishing the gate therein, and a driving signal is applied to an upper surface of the base 110. The start switch 111 and the stop switch 112 are provided. In addition, two guide rails 113 parallel to each other along the left and right longitudinal directions are formed on the upper surface of the base 110 to extend a predetermined length.

One side of the base unit 110 is connected to the transfer pipe 181 for transferring the dust to the dust collector (not shown), so that dust generated from the gate overshoot and introduced into the base 110 is a transfer pipe. It is transferred to the dust collector of the dust collecting unit along 181.

The movable worktable 120 is installed to be able to move forward and backward in the left and right longitudinal direction on the upper surface of the base part 110, and a guide groove 121 is formed on the lower surface of the base rail 110 so as to be seated on the guide rail 113. The mounting table 122 is formed to allow the injection product 10 to be seated. In the present embodiment, the injection molded product 10 has a mounting base 122 formed to correspond to the injection molded product 10 so that the mounting base 122 may enter into a groove formed in the lower surface thereof.

In addition, the movable worktable 120 has three and two through holes 123 formed on one side and the other side of the seating table 122, respectively, which are to be protruded from the cutting tool 162 to be described later. The auxiliary support 124 for supporting the injection product 10 together with the seating table 122 is installed at the point where the through hole 123 is formed.

The auxiliary support 124 is fixed to the movable work table 120 through the fastening bolt 125, the stepped 126 for supporting the lower sidewall of the injection product 10 on one side adjacent to the seating table 122 A predetermined length protrudes toward the seating table 122. The protruding distance of the step 126 is formed to correspond to the thickness of the side wall of the injection product 10. When the injection product 10 is seated on the seating plate 122, the inner circumferential surface of the side wall of the injection product 10 is the mounting table 122. The outer peripheral surface is supported on the front of the auxiliary support (124).

In addition, a working hole 127 is formed on the front surface of the auxiliary support 124 to expose the cutting tool 162. The left and right widths of the work hole 127 may be formed relatively larger than the width of the gate formed in the injection molded product 10, and when the injection molded product 10 is mounted, the gate may open the work hole 127. Through the auxiliary support 124 is protruded toward the side.

The drive unit 130 drives the movable work bench 120 forward and backward, a drive motor 131 installed in the base 110, and a rotating screw member 132 rotated by the drive motor 131. And a sliding bracket 133 installed at the lower portion of the movable work bench 120.

The sliding bracket 133 is fixed to the lower surface of the movable worktable 120, and can enter the base portion 110 through the sliding hole 114 formed on the upper surface of the base portion 110. The rotating screw member 132 is screwed to the sliding bracket 133. Therefore, when the rotating screw member 132 is rotated forward or reverse by the driving motor 131, the movable work bench 120 is driven forward and backward along the guide rail 113.

The fixing unit 140 is for fixing the injection product 10 seated on the seating table 122 to the seating table 122 while removing the gate, and predetermined along the left and right longitudinal direction on the movable work table 120. It includes two support members 141 which are installed at a distance from each other, a pneumatic cylinder 142 respectively installed on the support member 141, and a pressure plate 145 which is lifted up and down by the pneumatic cylinder 142. do.

The support member 141 includes a vertical portion 141a extending upwardly from the movable worktable 120 by a predetermined height, and a horizontal portion 141b extending from an upper end of the vertical portion 141a to an upper side of the seating table 122. It includes, the pneumatic cylinder 142 is installed in this horizontal portion (141b). The pneumatic cylinder 142 is a cylinder body 143 is fixed to the horizontal portion (141b), the cylinder rod 144 drawn out from the cylinder body 143 is formed to protrude downward through the horizontal portion (141b) When the cylinder rod 144 is withdrawn from the cylinder body 143, the cylinder rod 144 is installed to descend toward the seating plate 122.

The pressure plate 145 includes a coupling panel 146 coupled to the lower end of the cylinder rod 144 of each pneumatic cylinder 142, and a buffer panel 147 provided at the lower end of the coupling panel 146. The buffer panel 147 has a bottom shape corresponding to the top surface of the injection product 10, and is formed of rubber or synthetic resin that can elastically deform so that the injection product in the pressing process for fixing the injection product 10 ( 10) to prevent damage.

In the above-described fixing unit 140, when the injection product 10 is placed on the seating plate 122, the pressure plate 145 presses the injection product 10 downward by driving the pneumatic cylinder 142 to inject the injection product ( 10) is to be fixed to the movable worktable (120).

The cutting unit 160 includes an operation motor 161 installed on the base unit 110, and a cutting tool 162 rotatingly driven by the operation motor 161.

The operating motor 161 is fixed to the base unit 110, the cutting tool 162 installed in the operating motor 161 is installed to extend in the vertical direction, the base of the base 110 and the mobile work table 120 It penetrates the through hole 123 and is positioned adjacent to the seating plate 122. The cutting tool 162 is rotated by the operation motor 161 to remove the gate of the injection product 10.

Blowing unit 170 is to blow dust generated in the process of removing the gate by the cutting tool 162 to the inside of the base portion 110 to prevent dust from flying to the workplace.

The blower unit 170 includes a compressor 173 (not shown) for supplying compressed air, a branch block 171 provided in the pressurizing plate 145 to branch compressed air supplied from the compressor 173, It includes an air supply pipe 172 branched from the branch block 171 extending toward the auxiliary support (124).

The branch block 171 has a hexahedron shape, and an extension tube extending from the compressor 173 is connected to one side thereof, and five air supply pipes 172 branch from the other sides thereof to extend. Each air supply pipe 172 is formed of a tubular body that is flexible and can be fixed to the position of the end, the process of removing the gate is located so as to discharge air toward the working hole 127 of the auxiliary support 124 Cutting chips and dust generated in the blows into the base portion 110 through the working hole 127 and the through hole 123.

The compressor 173 applied to the blowing unit 170 is also applied to pneumatic supply for driving the pneumatic cylinder 142 of the fixed unit 140.

The dust collecting unit includes a transfer pipe 181 extending from the base unit 110 and a dust collector connected to the transfer pipe 181 as described above. Omit.

In addition, the front of the base 110, the safety sensor 190 is installed.

The safety sensor 190 includes first and second sensor members 191 and 192 which are respectively installed at both front ends of the upper surface of the base 110, and the first and second sensor members 191 and 192 are ultrasonic or light. The body of the worker is prevented from entering the mobile workbench 120 side while transmitting and receiving.

When the safety sensor 190 detects the worker's body entering the safety by stopping the operation of the device by blocking all the driving power for removing the gate, such as the drive motor 131, the operating motor 161, the compressor 173. Prevent accidents from happening.

The driving process of the gate mapping apparatus of the injection mold according to the present embodiment described above is as follows.

When the operator mounts the injection product 10 having the gate remaining on the seating plate 122 and presses the start button, air is injected into the pneumatic cylinder 142 while the pressure plate 145 descends to seat the injection product 10. It is fixed to the base 122. Thereafter, the driving motor 131 repeatedly moves forward and backward along the guide rail 113 while moving forward and backward rotation.

At this time, the operation motor 161 is driven to rotate the cutting tool 162, the injection product 10 is moved along the left and right longitudinal direction of the base portion 110 by the retreat of the movable worktable 120 Is removed by the cutting tool 162.

Cutting chips and dust generated in the process of removing the gate by the cutting tool 162 is collected into the base 110 by the compressed air discharged from the air supply pipe 172 of the blowing unit 170, The dust is moved to the dust collector through the transfer pipe 181 to process the dust.

After the movable work bench 120 is driven forward and backward for a predetermined number of times, the operating motor 161 and the driving motor 131 stop and the pneumatic cylinder drives the cylinder rod 144 to enter the cylinder body 143 to pressurize the plate. The fixing of the injection molded product 10 by 145 is released. The worker withdraws the injection-molded product 10 from which the gate is removed from the mounting table 122, and mounts the injection target product 10 again on the mounting table 122 and repeats the above process.

6 and 7 show another embodiment of the pressure plate 145.

In the pressure plate 145 of the present embodiment, a check valve 150 is provided on the coupling panel 146.

More specifically, the upper surface of the coupling panel 146 has a circular edge 151 protruding upward a predetermined height, and the valve seat 154 to be described later in the origin of the edge 151 is fixed Sheet fastening holes 152 are formed. The sheet fastening hole 152 is formed to penetrate the upper and lower surfaces of the coupling panel 146, and a predetermined diameter penetrating the upper and lower surfaces of the coupling panel 146 at two points spaced to both sides with respect to the sheet fastening hole 152. An exhaust hole 153 is formed.

The valve seat 154 includes an insertion member 155 that can be inserted into the coupling panel 146 through the seat fastening hole 152, and a seat member 156 formed on the upper surface of the insertion member 155. The inserting member 155 and the sheet member 156 are both formed of a synthetic resin material which is elastically deformable. In the case of the inserting member 155, the sheeting member 155 penetrates through the sheet fastening hole 152 and is fastened to the coupling panel 146 before the sheet fastening. The lower end is formed in a pointed conical shape downward to prevent the drawing out upward through the hole 152, the upper end of the conical member is formed larger in diameter than the diameter of the seat fastening hole 152. The sheet member 156 is formed in a disc shape having a diameter that can cover the inner region of the edge 151, and the exhaust hole 153 is covered by the sheet member 156 to pass through the exhaust hole 153. Prevent the movement of air On one side of the sheet member 156, a handle 157 for lifting the edge of the sheet member 156 is formed to extend upward a predetermined length.

The check valve 150 is for maximizing the fixing force of the injection product 10 by the pressure plate 145, and automatically lifts the injection product 10 from the seating table 122 after removal of the gate.

When the injection plate 10 is seated on the gate and the pressure plate 145 is lowered by the driving of the pneumatic cylinder 142, the buffer panel 147 is in close contact with the upper surface of the injection product 10, the cylinder rod 144 is The predetermined length is further lowered to further press the pressing plate 145 downward. In this case, as the cushioning member is compressed, the pressure of the upper surface of the injection molded product 10 and the internal space formed by the pressure plate 145 increases, and the air is pushed out of the pressure plate 145 through the exhaust hole 153. Is discharged.

As the pressure in the inner space of the pressure plate 145 is lowered, the pressure plate 145 and the injection product 10 are kept in close contact with each other due to the pressure difference so that the fixing force of the injection product 10 becomes larger. do.

When the pressing plate 145 is elevated upward after the gate is removed by the cutting tool 162 according to the above-described process, since the injection product 10 is in a state of being bonded to the pressing plate 145, the pressing plate 145 is removed. And is separated from the seating table 122 while lifting up with).

Thereafter, the worker lifts the edge of the seat member 156 by using the handle 157 to open the exhaust hole, thereby matching the internal pressure of the pressure plate 145 with the atmospheric pressure to press the injection product 10 from the pressure plate 145. It can be easily separated.

In the present embodiment, the pressure plate 145 and the injection product 10 are in close contact with each other by the check valve 150 to maximize the fixing force of the injection product 10 and at the same time after the completion of the work, the injection product 10 with the pressure member. Since it rises and is separated from the seating table 122, the operator can easily separate and withdraw the injection product 10, thereby increasing work convenience.

The rest of the components of the present embodiment are the same as the previous embodiment, so detailed description thereof will be omitted.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is evident that many alternatives, modifications and variations will be apparent to those skilled in the art. Accordingly, the true scope of the present invention should be determined by the technical idea of the appended claims.

100; Gate finishing device of injection product
110; Base part
120; Mobile workbench
122; Seating table 124; Auxiliary support
130; The driving unit
131; Drive motor 132; Rotating Screw Member
133; Sliding Bracket
140; Fixed unit
141; Support member 142; Pneumatic cylinder
145; Pressing plate 150; Check valve
160; Cutting unit
161; Working motor 162; Cutting tool
170; Blowing Unit
171; Branch block 172; Air supply line
190; Safety sensor

Claims (3)

A base portion having a predetermined inner space and having two guide rails extending side by side in a left and right longitudinal direction on an upper surface thereof;
A seating table is installed on the upper surface of the base to be slidable in the left and right directions along the guide rail, and a seating table for seating an injection product having a gate to be removed is formed on the upper surface, and is installed to be adjacent to the seating table. And mobile workbench including an auxiliary support for supporting the injection product;
The drive motor is fixed to the base portion, the rotating screw member is rotated forward and reverse by the drive motor and the lower surface of the movable workbench protrudes into the base portion through a sliding hole formed on the upper surface of the base portion A driving part including a sliding bracket screwed to the rotating screw member;
Two pneumatic cylinders including a support installed on the movable workbench, a cylinder body supported by the support, and a cylinder rod drawn out and drawn downward from the cylinder body toward the seating table, and installed at a lower end of the cylinder rod. And a fixing unit including a coupling panel, and a pressure plate configured to press the upper surface of the injection product seated on the seating plate when the cylinder rod is pulled out, including a cushioning panel of an elastically deformable material installed at a lower end of the coupling panel. ;
An operation motor installed in the base part and a cutting tool for rotationally driving by the operation motor and protruding upward through the base and the moving work platform to remove the gate of the injection product seated on the seating table. A cutting unit comprising;
A blowing unit for blowing cutting chips and dust generated in the process of removing the gate of the injection product by the cutting tool into the base part;
And a dust collecting unit including a dust collector for processing the cutting chip and dust, which is connected through the inner space of the base portion and the transfer pipe. The method of claim 1,
The auxiliary support is spaced apart from the front surface facing the seating by a distance corresponding to the side wall thickness of the side of the seating and the injection product, the lower side of the front support to support the bottom of the sidewall of the injection product A stepped protrusion is formed, and a work hole is formed on the front surface of the auxiliary support to allow the cutting tool to contact the injection product, and the work hole is relatively longer than the length of the gate to accommodate the gate. It is formed long
The pressure plate may include a coupling panel connected to the cylinder rod, and a cushioning panel installed at a lower portion of the coupling panel and formed of rubber or synthetic resin capable of elastic deformation so as to prevent the injection product from being damaged when the injection product is pressurized. Equipped,
The blower unit includes a compressor, a branch block for receiving a plurality of compressed air of the compressor, and a branch block for distributing a plurality of compressed air, and an air supply pipe branched from the branch block to extend compressed air toward the cutting tool. The block is fixedly installed on the upper surface of the pressing plate, the air supply pipe is branched by the number of gates to be removed from the branch block is extended toward each auxiliary support,
The upper surface of the base unit gate finishing apparatus of the injection product, characterized in that the safety sensor for detecting the body enters the moving workbench side of the worker while the removal of the gate is in progress. The method of claim 2,
The pressure plate is further provided with a check valve for allowing the injection product to be in close contact with the pressure plate,
A circular edge of a predetermined diameter is formed to protrude upward from the upper surface of the coupling panel, and a sheet fastening hole penetrating the upper and lower surfaces of the coupling panel is formed in the center portion of the edge, and the sheet is formed on the inner region of the edge. Two exhaust holes are formed at the position spaced apart from the fastening hole.
The check valve is inserted into the insertion member is formed in the upper end of the concave shape pointed to be fixed to the coupling panel through the seat fastening hole, the upper end of the insertion member to block the exhaust hole And a valve seat including a seat member and a handle for lifting the edge of the seat member upward to open the exhaust hole.
The buffer panel is in close contact with the outer surface of the injection product in the pressurizing process of the pressure plate to block the flow of external air into the space formed between the upper surface of the injection product and the pressure plate,
The sheet member is formed of a material capable of elastic deformation so that the air in the inner space of the pressure plate is discharged to the outside when the pressure of the inner space of the pressure plate is increased in the pressing process of the pressing plate Gate mapping device.

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