KR102774346B1 - Knurling processing apparatus and processing method of press plate for blister packaging - Google Patents

Abstract

A knurling processing device for a pressure plate for blister packaging is disclosed. The knurling processing device for a pressure plate for blister packaging is a device for knurling a pressure plate that heats and presses a sealing paper to seal contents in blister packaging, and may include: a fixing unit for fixing a pressure plate as a target of knurling processing; a processing unit equipped with a knurling processing wheel for forming a knurling groove on a surface of the pressure plate; a grinding unit equipped with a grinding wheel for grinding the knurling processing wheel when it is worn; and a control unit for controlling the overall system of the knurling processing device.

Description

{KNURLING PROCESSING APPARATUS AND PROCESSING METHOD OF PRESS PLATE FOR BLISTER PACKAGING}

The present invention relates to a knurling processing device and a processing method for a pressure plate for blister packaging, and more specifically, to a device and a knurling processing method for a pressure plate for heat-pressing a sealing paper to seal contents in blister packaging, which enable knurling processing to meet a set standard without error, thereby reducing the defect rate in the production of the pressure plate, and shortening the knurling processing time of the pressure plate, thereby improving the productivity of the product.

In general, blister packaging refers to a packaging technique in which a flat synthetic resin transparent film is formed into a container of a certain shape, a packaged product (e.g., capsule-shaped pills) is filled in the container, and then a syringe is bonded and sealed, and then the product is punched out and cut to a certain size to create a single packaging unit.

This type of blister packaging was initially developed for pharmaceutical companies to package tablets or capsules in a single pack, but is currently used in the confectionery industry to package chocolates, candies, and gums; cosmetics companies to package lipsticks, combs, and soaps; various household items such as batteries, toothbrushes, and razors; electronic and automotive parts such as light bulbs and fuses; and for producing small promotional samples.

Meanwhile, these blister packaging machines are composed of a packaging film forming section, a product filling section, a product bonding section, a marking section, a punching section, and a product extraction section.

At this time, in order to prevent moisture and foreign substances from penetrating from the outside into the product contact area, the product (e.g., capsule-shaped tablet) is filled into the packaging film having a concave filling groove, and then a sealant (e.g., aluminum foil) is attached to the packaging film to seal the product. To attach the sealant to the packaging film, a pressure plate having knurling (unevenness) is heated and pressed to adhere the sealant.

That is, one side of the pressure plate for thermally pressing the syringe is processed with a knurling in the form of a convex shape, and this knurling facilitates adhesion between the packaging film and the syringe.

In addition, in order to ensure smooth adhesion of the syringe without causing poor adhesion, knurling processing of the pressure plate is most important.

In other words, only when the knurling is processed to the exact specifications and shape can the rate of bonding failure be reduced during the process of bonding the syringe, and if the knurling is not processed to the specifications in a uniform form, the syringe may tear during the heat compression process or may not be bonded securely, which may ultimately lead to a problem of product defects during blister packaging.

Therefore, in manufacturing the press plate, the knurling process requires a narrow tolerance range and high manufacturing accuracy.

Meanwhile, in the past, in order to process the knurling of such a pressure plate, the knurling process was performed using a bite tip while the flat member was fixed.

That is, a method was used to process the entire surface of one side of the flat member by repeatedly forming grooves one line at a time while the bite tip moves across one side of the flat member.

However, when performing knurling processing of the pressure plate using this conventional method, several problems occurred.

For example, since the byte tip is processed one line at a time when it moves once, it takes a lot of time to process grooves on the entire surface, which reduces productivity.

In addition, as the bite tip was scraping the metal material processing plate to perform groove processing, the bite tip would wear out or break due to repeated friction, and eventually, if the bite tip was replaced periodically or groove processing was performed using a broken bite tip, groove processing could not be performed according to specifications, which resulted in a problem of defective pressure plates.

Therefore, there is an urgent need to develop a knurling processing device and processing method that are faster, more efficient, and more accurate in performing knurling processing when manufacturing a press plate.

Republic of Korea registered utility model 20-0369983 Republic of Korea registered patent 10-1208926

The purpose of the present invention is to solve such problems, and to provide a device and a method for knurling a pressure plate for heat-pressing a sealing paper to seal the contents in blister packaging, which enable knurling to be performed according to a set standard without error, thereby reducing the defect rate in the production of the pressure plate, and shortening the knurling processing time of the pressure plate, thereby improving the productivity of the product.

According to one embodiment of the technical idea of the present invention for achieving the above object, a knurling processing device for a pressure plate for blister packaging is provided, which is a device for knurling a pressure plate that heats and presses a sealing paper to seal contents in blister packaging, the device may include: a fixing unit for fixing a pressure plate as a target of knurling processing; a processing unit provided with a knurling processing wheel for forming a knurling groove on a surface of the pressure plate; a grinding unit provided with a grinding wheel for grinding the knurling processing wheel when it is worn; and a control unit for controlling the overall system of the knurling processing device.

In addition, the fixing member may include a base having a built-in driving unit that provides a rotational driving force; and a rotating plate disposed on the upper portion of the base, on which a pressure plate is fixedly fixed, a clamp for fixing the pressure plate is provided, and which rotates at an angle of 90 degrees per rotation by the driving unit.

In addition, the processing section may include a knurling processing wheel that forms processing protrusions at regular intervals along an outer surface and forms a knurling groove on the pressure plate by rotation; a first rotating means that rotates the knurling processing wheel; a transport means that vertically and horizontally transports the knurling processing wheel for knurling processing of the pressure plate; and a cutting oil nozzle that sprays cutting oil to cool frictional heat generated when the knurling processing wheel rotates on the pressure plate.

In addition, the polishing section may include a polishing wheel having polishing protrusions formed at regular intervals along an outer surface corresponding to the polishing protrusions in order to polish worn processing protrusions of the knurling processing wheel, and polishing the processing protrusions of the knurling processing wheel by rotation; and a second rotating means for rotating the polishing wheel.

In addition, the knurling processing wheel has processing protrusions formed at regular intervals along the outer surface, and the processing protrusions can be formed at least 14 to 16 protrusions.

In addition, the processing projection can be formed with a distance between the top ends of each projection portion of 0.7 mm to 0.9 mm so that the gap between the knurling grooves formed on the pressure plate can be 0.7 mm to 0.9 mm.

Additionally, the above-mentioned machining protrusions may be formed as inclined surfaces with each protrusion having a downward slope at the uppermost portion.

Additionally, the above-mentioned machining protrusions can be formed with an inclination angle of 120° between adjacent protrusions.

Additionally, the height of the machining projection from the cutting surface to the lowest groove portion may be 0.231 mm.

In addition, the grinding wheel has grinding protrusions formed at regular intervals along the outer surface, and the grinding protrusions can be formed at least 14 to 16 protrusions.

In addition, the above-mentioned grinding protrusions can be formed with a distance between the top ends of each protrusion part of 0.7 mm to 0.9 mm.

Additionally, the above grinding protrusions may be formed as a sloped surface with each protrusion facing downward at the top.

Additionally, the above grinding protrusions can be formed with an inclination angle of 120° between adjacent protrusions.

Additionally, the height of the above-mentioned grinding protrusion from the protruding uppermost portion to the lowest groove portion may be 0.231 mm.

According to one embodiment of the technical idea of the present invention for achieving the above object, a knurling processing method of a pressure plate for blister packaging is provided, in a knurling processing method for processing knurling on a pressure plate using a knurling processing device of the present invention, the method comprises the steps of: (S10) fixing the pressure plate after fixing it on a fixing member; (S20) aligning a knurling processing wheel to a processing position; (S30) processing a knurling groove on the pressure plate using a knurling processing wheel within a preset range and number of times; (S40) moving the knurling processing wheel to a grinding section after step S30; (S50) grinding a processing projection of the knurling processing wheel by operating a grinding wheel of the grinding section; (S60) aligning the knurling processing wheel to the processing position; (S70) repeating steps S30 to S60 to complete knurling groove processing in one direction of the pressure plate; and, when knurling groove processing in one direction is completed, rotating the pressure plate at a 90-degree angle through the fixing member for knurling groove processing in the other direction. It may include a step (S80) and a step (S90) of completing the knurling groove processing in the other direction of the pressure plate by repeating steps S30 to S60.

Additionally, the above S30 step can proceed to the S40 step or the S50 step after two straight processing steps.

In addition, step S50 may further include a step (S51) of counting the number of times the machining protrusion of the knurling machining wheel is ground and replacing the grinding wheel when the number of times reaches a preset number.

In addition, after the above step S90, a step (S91) of counting the number of knurling processes of the knurling process wheel and replacing the knurling process wheel when the number reaches a preset number may be further included.

In addition, after the above steps S70 and S90, a step (S92) of washing the pressure plate to remove the cutting tip absorbed on the pressure plate may be further included.

The device and method for knurling a pressure plate for blister packaging according to the present invention are a device and a method for knurling a pressure plate for heat-pressing a sealing paper to seal the contents in blister packaging, wherein a knurling processing wheel having a plurality of processing projections formed on an outer surface thereof can be used to quickly and accurately process knurling grooves without error according to a set standard, thereby reducing the defect rate in the production of the pressure plate, shortening the knurling processing time of the pressure plate, and improving the productivity of the product, and even if the knurling grooves are continuously processed by periodically grinding the processing projections of the knurling processing wheel that have worn out using a grinding wheel, there is an effect of forming a knurling groove without error and consistently.

FIG. 1 is a block diagram showing a schematic configuration of a knurling processing device for a blister packaging press plate according to one embodiment of the present invention.
FIG. 2 is a perspective view of a knurling processing device for a pressure plate for blister packaging according to one embodiment of the present invention.
Figure 3 is a perspective view of a knurling processing wheel.
Figure 4 is an enlarged bottom perspective view of the machining projection of the knurling machining wheel.
Figure 5 is an enlarged cross-sectional view of the machining projection of the knurling machining wheel.
Figure 6 is an enlarged perspective view of the main part of the grinding protrusion of the grinding wheel.
Figure 7 is an enlarged cross-sectional view of the grinding projection of the grinding wheel.
Figure 8 is an enlarged cross-sectional view of a main portion of a pressure plate on which knurling processing has been completed using a knurling processing wheel.
Figure 9 is an actual photograph of the pressure plate after knurling processing has been completed.
Figure 10 is a flow chart showing a knurling processing method of a pressure plate for blister packaging according to one embodiment of the present invention.

In order to fully understand the present invention, the operational advantages of the present invention, and the objects achieved by the practice of the present invention, reference should be made to the accompanying drawings and the contents described in the drawings illustrating preferred embodiments of the present invention.

Hereinafter, the present invention will be described in detail by describing a preferred embodiment of the present invention with reference to the attached drawings. The same reference numerals presented in each drawing represent the same components.

The present invention relates to a knurling processing device and a processing method for a pressure plate for blister packaging, which are a device and a knurling processing method for a pressure plate for heat-pressing a sealing paper to seal the contents in blister packaging, and which enable knurling processing to meet a set standard without error, thereby reducing the defect rate in the production of the pressure plate and shortening the knurling processing time of the pressure plate, thereby improving the productivity of the product.

FIG. 1 is a block diagram schematically showing the configuration of a knurling processing device for a pressure plate for blister packaging according to an embodiment of the present invention, FIG. 2 is a perspective view of a knurling processing device for a pressure plate for blister packaging according to an embodiment of the present invention, FIG. 3 is a perspective view of a knurling processing wheel, FIG. 4 is an enlarged bottom perspective view of a processing projection main portion of a knurling processing wheel, FIG. 5 is an enlarged cross-sectional view of a processing projection main portion of a knurling processing wheel, FIG. 6 is an enlarged perspective view of a grinding projection main portion of a grinding wheel, FIG. 7 is an enlarged cross-sectional view of a grinding projection main portion of a grinding wheel, FIG. 8 is an enlarged cross-sectional view of a main portion of a pressure plate on which knurling processing is completed using a knurling processing wheel, and FIG. 9 is an actual photograph of a pressure plate on which knurling processing is completed.

Referring to FIGS. 1 to 9, a knurling processing device for a pressure plate for blister packaging according to one embodiment of the present invention is a device for knurling a pressure plate that heats and presses a sealing sheet to seal contents when packaging a packaging object such as a pill in a blister package, and may largely include a fixing portion (100), a processing portion (200), a polishing portion (300), and a control portion (400).

Here, the control unit (400) is a part that controls the overall operation of the components that constitute the system of the knurling processing device, and may include, for example, a control panel (not shown) and a display (not shown) for a user to input numerical information or check input information and calculated information, a database, a control program, and all of the software and hardware control devices that constitute and control the knurling processing device.

First, the fixing portion (100) is a portion where the pressure plate, which is the target of knurling processing, is fixedly fixed.

The above-mentioned fixing member (100) may include a base having a driving member (111) that provides a rotational driving force, a pressurizing plate positioned on the upper portion of the base (110) to be fixedly fixed, a clamp (121) for fixing the pressurizing plate, and a rotating plate (120) that rotates at an angle of 90 degrees per rotation by the driving member (111).

Here, the base (110) is installed on the bottom of the knurling processing device at the location where the pressure plate is installed, and a driving unit (111) that generates a rotational driving force, for example, a rotational driving force generating device such as a motor, can be installed inside the base (110).

In addition, the above-mentioned rotary plate (120) is a portion where the pressure plate is mounted, and the above-mentioned rotary plate (120) is a portion that rotates 90 degrees by means of the rotational force transmitted from the driving unit (111), and the pressure plate may be mounted on the upper surface of the above-mentioned rotary plate (120) but may be positioned so as to be mounted at a 45-degree twisted angle with respect to the rotary plate (120).

In addition, a clamp (121) may be installed on the rotary plate (120) to secure the pressure plate in place. The clamp (121) may be fixed by directly pressing the upper surface of the pressure plate or by pressing the step on the edge of the pressure plate.

In this way, after the knurling process is performed through the processing section (200) described later while the pressure plate is fixedly installed on the rotary plate (120), the rotary plate (120) rotates 90 degrees at preset intervals to form a knurling groove at a 90-degree angle at a right angle to the knurling groove that was initially processed.

Next, the processing section (200) is a section that performs knurling processing of the pressure plate by being equipped with a knurling processing wheel (210) for forming a knurling groove on the surface of the pressure plate.

The above processing unit (200) may include a knurling processing wheel (210) in the form of a cylindrical wheel, in which processing protrusions (211) are formed at regular intervals along the outer surface, and which forms a knurling groove on the pressure plate by rotation, a first rotating means (220) that rotates the knurling processing wheel (210), a transport unit (230) that transports the knurling processing wheel (210) in the vertical and horizontal directions for knurling processing of the pressure plate, and a cutting oil nozzle (240) that sprays cutting oil to cool frictional heat generated when the knurling processing wheel (210) rotates on the pressure plate.

The above knurling processing wheel (210) is a type of grinding wheel, and is made of a grinding stone capable of grinding a certain thickness of the outer peripheral edge, and a plurality of processing protrusions (211) can be formed at certain intervals on the outer peripheral edge.

The above machining projection (211) is a part for machining a knurling groove on the surface of the pressure plate, and a knurling groove can be formed on the pressure plate by a forward or backward movement while the knurling machining wheel (210) rotates.

The above first rotating means (220) is a device that provides rotating power to rotate the knurling processing wheel (210), and for example, a motor can be applied.

In addition, the knurling processing wheel (210) may be installed such that a portion thereof is built into the housing (not shown) in which the first rotating means (220) is installed, and the remaining portion thereof is exposed downward.

Meanwhile, the transport unit (230) is a unit for transporting the knurling processing wheel (210) and the first rotation means (220) in horizontal and vertical directions, and may include a rail (231) providing a transport path and an elevating unit (232) for raising and lowering the knurling processing wheel (210) and the first rotation means (220).

Here, the rail (231) may include a rail arranged in a horizontal and vertical direction and a driving means (e.g., ball screw, LM guide, etc.) for transporting the knurled processing wheel (210) and the first rotating means (220), which are objects to be transported on the rail, through a linear motion.

The above-mentioned lifting unit (232) is a lifting device that allows the knurling processing wheel (210) and the first rotating means (220) to be raised or lowered in an upward or downward direction, and may be, for example, a lifting device having a hydraulic cylinder and a rack and pinion structure.

In this way, the transfer unit (230) transfers the knurling processing wheel (210) and the first rotating means (220) in a horizontal or vertical direction or raises and lowers them, and performs a role of transferring the knurling processing wheel (210) to process a knurling groove on the pressure plate or transferring the knurling processing wheel (210) to the position of the polishing unit (300) described later.

Meanwhile, the cutting oil nozzle (240) is a part that sprays cutting oil to cool the frictional heat generated when the knurling processing wheel (210) rotates on the pressure plate, and can be installed on one side of the housing (not shown) in which the first rotating means (220) is installed.

Below, the knurling processing wheel (210) will be described in detail.

The above knurling processing wheel (210) has processing protrusions (211) formed at regular intervals along the outer surface. The processing protrusions (211) may be formed in at least 14 to 16, preferably 15 protrusions.

That is, since the above-mentioned machining projection (211) is composed of at least 14 to 16 projections, the number of knurling grooves machined through one linear motion of the knurling machining wheel (2100) is increased compared to the conventional method, thereby significantly reducing the total machining time required for knurling machining.

In this way, the reason why the machining projection (211) is configured with at least 14 to 16 projections is that if the projections are configured with 14 or fewer projections, the number of grooves to be machined decreases, which increases the knurling machining time, and if the machining projections (211) are configured with 16 or more projections, the machining quality of the machined knurling grooves may decrease, which may cause a problem in that the defective rate may increase. Therefore, in the present invention, as an example, the width of the knurling machining wheel (210) is set to 20 mm, and at least 14 to 16 projections (211) are configured within a range of 20 mm.

Accordingly, the knurling processing device of the present invention sets the number of appropriate processing protrusions (211) to at least 14 to 16, which can reduce the defect rate during knurling processing while improving the efficiency of the knurling processing work.

Meanwhile, as shown in FIGS. 4 and 5, the above-described machining protrusion (211) may be formed so that the distance between the uppermost ends of each protrusion portion may be 0.7 mm to 0.9 mm so that the gap between the knurling grooves formed on the pressure plate may be 0.7 mm to 0.9 mm.

That is, when the knurling processing wheel (210) rotates and moves in a straight line, the knurling grooves of the pressure plate can be processed so that the interval between the knurling grooves is formed to be 0.7 mm to 0.9 mm through each protrusion formed with a distance between the uppermost protrusions of 0.7 mm to 0.9 mm.

Meanwhile, the above-mentioned machining protrusion (211) can be formed as a sloped surface with each protrusion facing downward at the top portion.

Additionally, the above-mentioned processing protrusions (211) can be formed with an inclination angle of 120° between adjacent protrusions.

In addition, the height of the above-mentioned machining projection (211) from the protruding uppermost portion to the lowest groove portion can be 0.231 mm.

In this way, depending on the setting shape and size of the machining projection (211) of the knurling machining wheel (210), the knurling groove machined on the pressure plate can be machined in the following shape.

As shown in FIGS. 8 and 9, the gap between the knurled grooves formed on the pressure plate can be 0.7 mm to 0.9 mm.

Additionally, the uppermost protruding portion (e.g., a projection) may be formed as a downwardly inclined surface, and the inclination angle between adjacent projections may be formed as 120°.

In addition, the protruding uppermost portion may be formed with a cutting surface cut into a plane, and the cutting surface may be formed in a pyramid shape in which the uppermost portion of the projection is in a state before cutting and the uppermost protruding portion gathers at one point, and the upper portion is cut to a thickness of 0.043 mm.

Accordingly, the cutting surface, which is the upper part of the pressure plate, can be formed into a square with a horizontal and vertical length of 0.15 mm and an area of 0.15 ㎟.

Next, the polishing section (300) is a section for polishing the knurling processing wheel (210) when it wears out.

The above-mentioned polishing section (300) may include a polishing wheel (310) that has polishing protrusions (311) formed at regular intervals along the outer surface to correspond to the processing protrusions (211) in order to polish worn processing protrusions (211) of the knurling processing wheel (210) during repetitive knurling groove processing, and a second rotating means (320) that rotates the polishing wheel (310) to polish the processing protrusions (211) of the knurling processing wheel (210) by rotation.

The above-mentioned grinding wheel (310) is a type of grinding wheel, and is made of a grinding stone capable of grinding a certain thickness of the outer peripheral edge, and a plurality of grinding protrusions (311) can be formed at certain intervals on the outer peripheral edge.

The above-mentioned grinding protrusion (311) is a part for periodically grinding the processing protrusion (211) so that the processing protrusion (211) can have a sharpness above a certain level when the processing protrusion (211) is worn by repeated knurling groove processing, and the worn part can be ground by friction caused by contact with the knurling processing wheel (210) as the grinding wheel (310) rotates.

That is, the processing projection (211) of the knurling processing wheel (210) can be polished by rotating the grinding wheel (310) while the grinding projection (311) of the grinding wheel (310) is in contact with the grinding projection (311).

The second rotating means (320) is a device that provides rotational force to rotate the polishing wheel (310), and for example, a motor can be applied.

Below, the above polishing wheel (310) will be described in detail.

The above polishing wheel (310) has polishing protrusions (311) formed at regular intervals along the outer surface. The number of the polishing protrusions (311) may be at least 14 to 16, preferably 15.

At this time, the grinding protrusion (311) can be formed with a distance between the top ends of each protrusion portion of 0.7 mm to 0.9 mm to correspond to the processing protrusion (211) of the knurling processing wheel (210).

Additionally, the above-mentioned grinding protrusions (311) can be formed as an inclined surface with each protrusion facing downward at the top.

Additionally, the above-mentioned grinding protrusions (311) can be formed with an inclination angle of 120° between adjacent protrusions.

In addition, the height of the above-mentioned grinding protrusion (311) from the protruding uppermost portion to the lowest groove portion can be 0.231 mm.

Hereinafter, a knurling processing method for processing knurling on a pressure plate using a knurling processing device for a blister packaging pressure plate according to one embodiment of the present invention described above will be described.

Figure 10 is a flow chart showing a knurling processing method of a pressure plate for blister packaging according to one embodiment of the present invention.

Referring to Figure 10, the knurling processing method of the pressure plate for blister packaging according to the technical idea of the present invention is as follows.

Step (S10) of fixing the pressure plate after it has been fixed in the fixing member;

Step (S20) of aligning the knurling processing wheel to the processing position;

Step (S30) of processing a knurling groove on a pressure plate using a knurling processing wheel for a preset range and number of times;

Step (S40) of moving the knurling processing wheel to the grinding section after the above step S30;

Step (S50) of grinding the machining projection of the knurling processing wheel by operating the grinding wheel of the grinding section;

Step of aligning the knurling processing wheel to the processing position (S60);

A step (S70) of completing the knurling groove processing in one direction of the pressure plate by repeating the above steps S30 to S60;

When the knurling groove processing in one direction is completed, the step (S80) of rotating the pressure plate at a 90-degree angle through the fixing member for the knurling groove processing in the other direction; and

It may include a step (S90) of completing the knurling groove processing in the other direction of the pressure plate by repeating the steps S30 to S60 above.

At this time, the S30 step can be set to proceed to the S40 step or the S50 step by the control unit (400) after two straight processing steps.

In addition, step S50 may further include a step (S51) of counting the number of times the processing projection (211) of the knurling processing wheel (210) is ground and replacing the grinding wheel (310) when the number reaches a preset number.

In addition, after the above step S90, a step (S91) of counting the number of knurling processes of the knurling process wheel (210) and replacing the knurling process wheel (210) when the number reaches a preset number may be further included.

In addition, after the above steps S70 and S90, a step (S92) of washing the pressure plate to remove the cutting tip absorbed on the pressure plate may be further included.

The process of the knurling processing method of the pressure plate for blister packaging according to the present invention is explained as follows.

First, the worker fixes the pressure plate to be processed by knurling to the rotating plate (120) of the fixing part (100) using a clamp (121). (S10)

At this time, the pressure plate can be fixed with a clamp (121) so that it is positioned at a 45-degree twisted angle with respect to the rotary plate (120). Accordingly, even if the knurling processing wheel (210) is moved left and right horizontally, a knurling groove can be processed in a diagonal direction on the pressure plate.

Next, the knurling processing wheel (210) is aligned to the preset initial processing position of the knurling processing wheel (210) through the control unit (400). (S20)

Next, the knurling processing wheel (210) processes the knurling groove for a range and number of times preset by the control unit (400), and at this time, the first rotating means (220) rotates, and the knurling processing wheel (210) is transported along the preset path through the transport unit (230) to process the knurling groove. (S30)

Next, when the knurling groove processing is completed for a preset range and number of times through the knurling processing wheel (210), the knurling processing wheel (210) is moved to the polishing section (300) position under the control of the control unit (400). (S40)

At this time, the preset range and number of times that the knurling processing wheel (210) processes the knurling groove in step S30 may be performed, for example, by two straight processing steps.

That is, after the knurling processing wheel (210) has processed the knurling groove in the preset range and number of times at step S30, the processing projection (211) may be in a state of partial wear in the initial state, so the knurling processing wheel (210) moves to the polishing section (300) position to polish the processing projection (211).

Next, when the knurling processing wheel (210) is moved to the position of the polishing section (300), the polishing wheel (310) of the polishing section (300) is operated to polish the processing projection (211) of the knurling processing wheel (210). (S50)

That is, when the machining projection (211) of the knurling processing wheel (210) is in contact with the grinding projection (311) of the grinding wheel (310) while facing each other, the grinding process of the machining projection (211) of the knurling processing wheel (210) is performed as the grinding wheel (310) is rotated by the second rotating means (320).

At this time, the knurling processing wheel (210) can be fixed in a stationary state or rotated in the opposite direction to the rotation of the polishing wheel (310) to perform polishing.

Next, when the grinding process of the knurling processing wheel (210) is completed through step S50, the knurling processing wheel (210) is moved back to the position of the initial fixing part (100) and aligned to the knurling processing position. (S60)

In this way, by repeating steps S30 to S60, the knurling groove processing in one direction of the pressure plate is completed. (S70)

Through the above process, the one-sided knurling groove processing of the pressure plate is completed.

Next, when the knurling groove processing in one direction is completed, the rotation plate (120) of the fixing member (100) is rotated to rotate the pressure plate at a 90-degree angle for the knurling groove processing in the other direction (S80).

Next, by repeating steps S30 to S60 above, the knurling groove processing in the other direction of the pressure plate is completed. (S90)

The above-described knurling processing device and processing method of a blister packaging press plate according to the technical idea of the present invention are a device and a knurling processing method of a press plate for knurling a press plate that heats and presses a sealing paper to seal the contents in blister packaging, wherein a knurling processing wheel having a plurality of processing projections formed on an outer surface thereof can be used to quickly and accurately process knurling grooves without error according to a set standard, thereby reducing the defect rate during the production of the press plate, shortening the knurling processing time of the press plate, and improving the productivity of the product, and even if the knurling grooves are continuously processed by periodically grinding the processing projections of the knurling processing wheel that have worn out using a grinding wheel, there is an effect of forming a knurling groove consistently without error.

As described above, the best embodiments have been disclosed in the drawings and the specification. Although specific terms have been used herein, they are used only for the purpose of describing the present invention and are not used to limit the meaning or the scope of the present invention described in the claims. Therefore, those skilled in the art will understand that various modifications and equivalent other embodiments are possible from this. Accordingly, the true technical protection scope of the present invention should be determined by the technical idea of the appended claims.

100: Fixed base 110: Base
111: Drive unit 120: Rotating plate
121: Clamp 200: Machining section
210: Knurling processing wheel 211: Processing protrusion
220: First rotating means 230: Transfer part
231: Rail 232: Lift
240: Cutting oil nozzle 300: Polishing part
310: Grinding wheel 311: Grinding protrusion
320: Second rotating means 400: Control unit

Claims (19)

In a device for knurling a press plate that heats and presses a sealing sheet to seal the contents in blister packaging,
A fixing part in which a pressure plate to be processed by knurling is fixedly fixed;
A processing unit equipped with a knurling processing wheel for forming a knurling groove on the surface of the pressure plate;
A grinding unit having a grinding wheel for grinding the above knurling processing wheel when it wears out; and
A control unit that controls the entire system of the knurling processing device;
The above fixing device is,
A base having a built-in drive unit that provides rotational driving force; and
A pressure plate is positioned on the upper part of the base and fixedly fixed, a clamp for fixing the pressure plate is provided, and a rotating plate that rotates 90 degrees per rotation by the driving unit;
The above processing part,
A knurling processing wheel that forms processing projections at regular intervals along the outer surface and forms knurling grooves on the pressure plate by rotation;
A first rotating means for rotating the above knurling processing wheel;
A transfer unit that transfers the knurling processing wheel in the vertical and horizontal directions for knurling processing of the above pressure plate; and
It includes a cutting oil nozzle that sprays cutting oil to cool the frictional heat generated when the knurling processing wheel rotates on the pressure plate;
The above polishing part,
In order to grind the worn machining protrusions of the above knurled processing wheel, a grinding wheel having grinding protrusions formed at regular intervals along the outer surface corresponding to the above machining protrusions and grinding the machining protrusions of the above knurled processing wheel by rotation; and
A second rotating means for rotating the above polishing wheel is included;
The above knurling processing wheel is,
Processing protrusions are formed at regular intervals along the outer surface, and at least 14 to 16 protrusions are formed.
The above machining protrusion is,
The distance between the uppermost ends of each protrusion is formed to be 0.7 mm to 0.9 mm so that the gap between the knurled grooves formed on the above-mentioned pressure plate can be 0.7 mm to 0.9 mm.
The above machining protrusion is,
Each protrusion is formed as a downward-sloping surface at the top,
The above machining protrusion is,
The angle of inclination between adjacent projections is formed as 120°,
The above machining protrusion is,
The height from the protruding top part to the lowest groove part is 0.231 mm.
The above grinding wheel is,
Grinding protrusions are formed at regular intervals along the outer surface, and at least 14 to 16 grinding protrusions are formed.
The above grinding protrusions are,
The distance between the tops of each protrusion is formed to be 0.7 mm to 0.9 mm.
The above grinding protrusions are,
Each protrusion is formed as a downward-sloping surface at the top,
The above grinding protrusions are,
The angle of inclination between adjacent projections is formed as 120°,
The above grinding protrusions are,
A knurling processing device for a pressure plate for blister packaging, characterized in that the height from the protruding uppermost part to the lowest recessed part is 0.231 mm. delete delete delete delete delete delete delete delete delete delete delete delete delete delete delete delete delete delete