JP2003300199A - Trimming press method and device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To use only one press device, and to miniaturize a manufacturing facility in a trimming press for performing cutting plural times. <P>SOLUTION: This trimming press device 7 cuts molding parts by introducing a belt-like resin sheet having a plurality of molding parts molded by heating, and is constituted so as to cut off the molding parts from the resin sheet by successively using a plurality of cutting blade units 31 and 41 by arranging a slide table 21 oppositely stoppable to a cutter receiving seat 51 by sliding the plurality of cutting blade units 31 and 41, and a punching driving device 19 for driving the cutting blade units 31 and 41 so as to approach-separate to the cutting blade receiving seat 51 via the slide table 21 in a cutting position I for arranging the cutting blade receiving seat 51. <P>COPYRIGHT: (C)2004,JPO

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a trimming press method and apparatus for cutting and separating a plurality of molding parts formed on a belt-shaped resin sheet.

[0002]

2. Description of the Related Art Molding for continuously producing a product by thermoforming a band-shaped resin sheet fed from a resin sheet roll to form a plurality of molding parts and further separating the molding parts from the resin sheet by a trimming press device. There are facilities.

The trimming press device in the above-mentioned molding equipment includes a cutting blade for separating the molding portion from the resin sheet, a cutting blade unit having a positioning hole for holding the molding portion at a fixed position, and a cutting blade receiving seat for receiving the tip of the cutting blade. In addition to holding and positioning the molding section in the positioning hole, the punching drive device drives the cutting blade unit toward the cutting blade receiving seat side to punch the resin sheet along the cutting line on the outer circumference of the molding section, It is configured to separate the forming part from the sheet.

However, on the molding line from the heat molding device to the trimming press device, the resin sheet may undergo large thermal contraction and the molding part may be displaced due to the material of the resin sheet and the shape of the molding part. . In such cases,
There is a problem in that the molding portion is not normally fitted into the positioning hole, and therefore the cutting portion is cut off from the normal cutting line to frequently cause defective products.

As a countermeasure against this, for example, Japanese Patent Laid-Open No. 11-5
No. 06063 discloses a precut die device that allows displacement of a molding portion by performing precut before cutting.

[0006]

However, in the above configuration, the die trimming device is arranged on the downstream side of the precut die device, and the manufacturing cost increases with the two trimming press devices, and the manufacturing is performed with the two trimming press devices. There was a problem that the equipment became large and occupied area increased, and it could not be installed in the conventional manufacturing line equipped with one trimming press device.

The present invention solves the above problems and enables trimming in a plurality of steps with a single trimming press device, thereby reducing manufacturing costs and downsizing the trimming press device. An object is to provide a pressing method and apparatus.

[0008]

In order to achieve the above object, a trimming press method according to a first aspect of the present invention includes a method of punching the molding portion by introducing a belt-shaped resin sheet having a plurality of heat-molded molding portions. , At the cutting position where the cutting blade receiving seat is installed, the plurality of cutting blades are sequentially slid and stopped, and at least one of the cutting blade and the cutting receiving seat is driven up and down to make the cutting blade receiving seat and the cutting blade. A plurality of trimming steps for punching out the resin sheet introduced between are sequentially performed to separate the molding portion from the resin sheet.

According to the above construction, a plurality of cutting blades are slid in order at the cutting position where the cutting blade receiving seat is installed, and the molding portion is punched out from the resin sheet. Therefore, one cutting position (one trimming press device) is used. The trimming step can be performed a plurality of times, and the manufacturing cost can be reduced and the trimming press device can be downsized.

According to a second aspect of the present invention, in the trimming press method according to the first aspect, at least two cutting blades are used, and the cutting blade used first has a plurality of uncut portions on the outer peripheral portion of the molded product. With a pre-cutting blade punching out along a pre-cutting line having, the cutting blade used after the pre-cutting blade is used is cut along the main cutting line over the entire circumference between the positioned forming part and the pre-cutting line. Then, the main cutting blade is cut off from the resin sheet.

According to the above construction, the pre-cutting by the pre-cutting blade and the main cutting by the main cutting blade can perform a plurality of trimming steps at one cutting position, that is, one trimming press device. The size can be reduced.

According to a third aspect of the present invention, in a trimming press device for introducing a band-shaped resin sheet having a plurality of heat-formed molded parts and punching out the molded parts, a cutting blade receiving seat is installed at a cutting position. A slide table capable of stopping by facing each of the cutting blade receiving seats by sliding a plurality of cutting blade units each having a cutting blade, and lifting and lowering at least one of the cutting blade unit and the cutting blade receiving seat to perform cutting. A punching drive device for punching out the resin sheet introduced between the blade and the cutting blade receiving seat to separate the molding portion is provided.

According to the above construction, a plurality of trimming steps are completed by sliding the cutting blade unit to the cutting position by the slide table and punching the resin sheet.
This can be performed by the trimming press device of the table, so that the manufacturing cost can be reduced and the trimming press can be downsized.

The trimming press device according to claim 4 is
The structure according to claim 3, wherein at least two cutting blade units are provided on the slide table, and the pre-cutting blade unit used first is along a pre-cutting line having a plurality of uncut portions on the outer peripheral portion of the molded product. Having a pre-cutting blade for punching out a resin sheet, the main cutting blade unit used after the pre-cutting blade has a positioning portion for positioning and holding a molding portion, and a resin over the entire circumference of the molding portion inside the pre-cutting line. The present invention has a main cutting blade for punching out a sheet and separating a molding portion from the resin sheet.

According to the above construction, the pre-cutting and the main cutting are performed.
This can be performed with one trimming press device, which can reduce the manufacturing cost and downsize the trimming press.

The trimming press device according to claim 5 is
The structure according to claim 4, wherein a sheet conveying device that holds both edges of the resin sheet and conveys it intermittently is provided, and uncut portions by the pre-cutting blade are formed on both sides of the transverse line of the resin sheet, respectively. It is a thing.

According to the above construction, the resin sheet whose both edges are held by the sheet conveying device is mainly pulled in the transverse direction due to thermal contraction and is displaced, but both sides of the transverse line of the resin sheet, that is, the molding. By forming the uncut portions on the upstream side and the downstream side of the section, when the molding section is positioned in the positioning section, the misaligned molding section (especially in the transverse direction) can be easily returned to the normal position. With this cutting blade, punching can be performed accurately.

A trimming press device according to a sixth aspect is
In the structure according to claim 4 or 5, the stop position of the main cutting blade unit, which is separated from the cutting position on the slide table, is the product take-out position for taking out the molding section accommodated in the positioning section.

According to the above construction, the molding portion separated from the resin sheet by the main cutting blade can be housed in the positioning portion of the main cutting blade unit and carried out at the product take-out position.
By arranging the slide table, the product can be taken out at an arbitrary position, and the degree of freedom in designing the molding equipment adopting this trimming press device can be improved.

[0020]

BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of a molding facility having a trimming press device according to the present invention will be described with reference to FIGS.
A description will be given based on 0.

As shown in FIG. 1, this molding facility has a sheet feeding section A having a sheet feeding device (not shown) for feeding the resin sheet S from the resin sheet roll 1 in order from the upstream side of the molding line L, A heating device 3 including upper and lower heaters 3A and 3B arranged at upper and lower positions with a molding line L interposed therebetween, and upper and lower molding dies 4 by molding driving devices 5A and 5B.
A and 4B are moved toward and away from each other to form a molding portion W on the resin sheet S.
A heat molding section B having a press molding device 5 for molding
After the cutting part C having the trimming press device 7 for separating the molding part W from the resin sheet S, the product transfer device 8 for transferring the separated molding part W to the product transport conveyor 8a, and the molding part W are separated. And a product discharging section D having a scrap sheet winding device (not shown) for winding the scrap sheet Ss, and holding and guiding the resin sheet S from the inlet of the heat forming unit B to the outlet of the cutting unit 7. A guide device 10 is provided.

As shown in FIGS. 1 and 6, the sheet guide device 10 includes a pair of left and right sprockets 35a disposed on both sides of the inlet of the heat forming section B and left and right sides disposed on both sides of the outlet of the cutting section 7. An endless transport chain 36 is wound between the pair of sprockets 35b, and a gripping member 37 is projected on the outer peripheral surface of the transport chain 36 at a constant pitch and guided by guide grooves 38. There is. Then, one of the sprockets 35a and 53b is rotationally driven by a transport drive motor (not shown),
The resin sheet S is provided between the upper surface of the guide groove 38 and the grip member 37.
Both edge portions Sa can be grasped and intermittently moved at a predetermined speed.

The trimming press section 7 is shown in FIGS.
As shown in FIG. 2, a fixed base 11 fixed to the floor along the molding line L is provided with a support base 13 whose position is adjustable in the molding line L direction via a pair of left and right base rails 12. There is. The support base 13 is adjusted by an adjusting screw shaft drive device (electric motor) 14a provided on the fixed base 11,
A position adjusting device 14 is provided, which drives the base adjusting screw shaft 14b to rotate via a winding transmission mechanism, and is capable of sliding the support base 13 by a female screw member 14c screwed to the base adjusting screw shaft 14b. The position adjustment device 14 can adjust the position of the support base 13 in the molding line L direction.

On the support base 13, a pair of front and rear guide struts 15 corresponding to the cutting position I are assembled and installed on both sides of the molding line L. The frame 16 and the left and right upper movable frames 17 are supported so as to be able to move up and down. The slide table 21 is supported between the left and right lower movable frames 16,
The receiving seat table 22 (FIG. 5) is supported between the left and right upper movable frames 22.

The slide table 22 has a pair of left and right slide rails 24 laid on the left and right guide mounts 23 in the molding line L direction, and a plurality of slide rails 24 (in FIG.
The cutting blade support bases 26A and 26B are movably supported in the molding line L direction. Then, for example, the pre-cutting blade unit 31 is mounted on the upstream cutting blade support base 26A, and the main cutting blade unit 41 is mounted on the downstream cutting blade support base 26B.

The slide table 22 is supported by a plurality of punching drive devices 18 and 19 so as to be able to move up and down. The punching drive devices 18 and 19 are the support base 1
A main punching drive device (punching drive device, FIG. 4) 18 of a toggle link type, which is installed in the central portion of 3 corresponding to the vertically movable frames 17 and 16 and which supports the guide mount 23 so as to be vertically movable from below, and a support base. A pair of left and right auxiliary punching drive devices (punching drive device, FIG. 2) 19 and 19 each of which is made up of hydraulic cylinders which are erected on both left and right sides of the base 13 and whose output rods are connected to the left and right lower movable frames 16, respectively Has been. Further, the cutting blade support bases 26A and 26B
Is formed in a U shape in plan view with the cutting position I side open, and is supported by the slide devices 27A and 27B so as to be reciprocally movable in the molding line L direction. These slide devices 27A and 27B are, as shown in FIGS.
It is provided on the upstream side and the downstream side of the guide frame 23, respectively, and is driven by a slide drive device (electric motor) 27a via a winding transmission mechanism to rotate and drive the slide screw shafts 27b in the direction of the molding line L respectively. A female screw member 27c screwed to the screw shaft 27b is configured to reciprocate the cutting blade supporters 26A and 26B in the molding line L direction.

Therefore, the upstream slide device 27A
The cutting blade support 26A on which the pre-cutting blade unit 31 is mounted is reciprocated between the cutting position I and the standby position II on the upstream side thereof, and the slide device 27 on the downstream side is used.
The cutting blade support base 26B, on which the main cutting blade unit 41 is mounted by B, is moved to the cutting position I and the product unloading position II on the downstream side thereof.
Reciprocating between the I positions, the cutting blade support 26A and the cutting blade support 26B are alternately moved to the cutting position I, and trimming is performed in two steps by the pre-cutting blade unit 31 and the main cutting blade unit 41. You can

The cutting blade supports 26A and 26B can be reciprocated in a direction orthogonal to the molding line L direction or a direction with a predetermined angle. As shown in FIG. 9, the pre-cutting blade unit 31 has a predetermined gap on the upper surface of the unit frame 32 (corresponding to the molding portion W, it is widely shown for convenience. Actually, it is several mm to ten and several mm. degree)
A rectangular pre-cutting blade 33 for punching and punching is arranged,
Pre-cutting positioning recesses 34 for accommodating the forming section W are formed in these pre-cutting blades 33. As shown in FIGS. 7 and 8, the pre-cutting blade 33 has a main cutting line (main cutting line).
The outer peripheral side of the SC is cut along a pre-cut line (pre-cut line) PC that is large by e = 3 to 10 mm, and an uncut portion d for connecting the forming portion W and the scrap sheet Ss is formed. For this reason, the pre-cutting blade 33 is provided with notches 33a at, for example, both sides of the transverse line of the resin sheet S at the point-symmetrical positions of the molding portions (the positions are substantially diagonal lines in the figure). The uncut portion d of the resin sheet S is set, for example, in the range of d = 0.5 to 5.0 mm, though it depends on the sheet thickness, strength, and stretchability. Is formed in. This is because the uncut portion d is 0.5 mm
In the following, the molded portion W is likely to be broken and the molded portion W may come off from the resin sheet S. Further, when the thickness exceeds 5.0 mm, the rigidity of the uncut portion d is large and the molded portion W is used for positioning during main cutting. Is difficult to displace.

As shown in FIG. 11 (a), when the molded portion W is large and heavy, four uncut portions d are arranged on both sides of the transverse line of the resin sheet S in line symmetrical positions. May be. Further, as shown in FIG. 11B, in the forming portion W having a circular shape in plan view, the uncut portions d can be formed at three positions at equal angles. Further, as shown in FIG. 11 (c),
In the formed portion W having a triangular shape in plan view, the uncut portion d may be formed at three vertex positions.

As shown in FIG. 10, the main cutting blade unit 41 has a rectangular main cutting blade which is punched on the upper surface of the unit frame 42 along the main cutting line SC set inside each pre-cutting line PC. 43 are arranged and these main cutting blades 4
A positioning concave portion (positioning portion) 44 for accommodating and positioning the molding portion W is formed in the inside 3.

On the receiving seat table 22 provided between the upper movable frames 17, a cutting blade receiving seat 51 on which the pre-cutting blade 33 and the main cutting blade 43 abut is attached to the lower surface. The receiving table 22 is a guide column 15.
Is supported by the upper end fixing frame 50 and the intermediate fixing frame 52 so as to be able to move up and down, and as shown in FIG. 2, it is interposed between the upper end fixing frame 50 and the fixing frame 52 via a female screw member 53b. The receiving seat table elevating device 53 having an elevating screw shaft 53a penetrating the receiving seat table 22 drives the receiving seat table 22 up and down, and when the pre-cutting blade 33 and the main cutting blade 43 cut, the receiving seat table elevating device 53. By lowering the cutting blade receiving seat 51, the cutting blade receiving seat 51 can be pressed against the upper surface of the resin sheet S for good punching, and even if there is a step on both edges Sa (FIG. 6), The upper surface of the sheet S can be properly pressed and punched with high precision.

In the above-described structure, the resin sheet S is sequentially delivered by a predetermined length from the resin sheet roll 1 of the sheet delivery portion A through a plurality of guide rollers, and is grasped by the sheet guide device 10 to be heated and formed by the heat forming portion. Introduced in B. In the heat molding unit B, after the resin sheet S is heated to a predetermined temperature by the heating device 3, the press molding device 5
The upper and lower molds 4A and 4B of
Is molded.

Further, a resin sheet S having a molding portion W molded therein
However, when it is introduced from the heat forming section B to the cutting section C, the cutting blade support 26A on the upstream side is stopped at the cutting position I,
Main punching drive device 18 and auxiliary punching drive device 1
9, the pre-cutting blade unit 31 on the cutting blade support base 26A is raised, and the receiving table lifting device 5
2 through the upper movable frame 17 the cutting blade receiving seat 51
Is lowered. As a result, the pre-cut positioning recess 34
The molding portion W is fitted and positioned in the pre-cutting blade unit 31, and the pre-cutting blade 33 of the pre-cutting blade unit 31 punches the resin sheet S along the pre-cutting line PC (pre-cutting step). When the pre-cutting blade 33 comes into contact with the cutting blade receiving seat 51 of the receiving seat table 22, the pre-cutting blade unit 31 is driven by the main punching drive device 18 and the auxiliary punching drive device 19.
And the cutting blade receiving seat 51 is raised by the receiving table lifting device 52.

Further, the slide devices 27A and 27B are driven to slide the cutting blade support 26A at the cutting position I to the standby position II on the upstream side, and at the same time, the cutting blade support 26B on the downstream side moves to the product discharging position. Slide from III to cutting position I.

Then, the main punching driving device 18 and the auxiliary punching driving device 19 are used to move the cutting blade support 26 by the lower movable frame 16 and the movable slide table 21.
While the main cutting blade unit 41 on B is raised, the cutting blade receiving seat 51 is lowered by the receiving seat table elevating device 52 via the upper movable frame 17. Then, after the molding portion W is fitted into the positioning recess 44 and positioned, the resin sheet S is moved by the main cutting blade 43 of the main cutting blade unit 41.
Is cut along the main cutting line SC, the molding portion W is punched out, and is housed in the positioning recess 44 (main cutting step).
Since the molded portion W is previously cut along the pre-cut line PC before cutting, the uncut portion d can allow the positional deviation of the molded portion W, and the resin sheet S is partially or wholly heated. Even if the molding portion W shrinks and the position of the molding portion W shifts, the molding portion W can be accurately fitted and positioned in the positioning recess 44, whereby the molding portion W can be accurately positioned along the main cutting line SC. You can punch well.

After the pre-cutting blade 33 cuts the resin sheet S and comes into contact with the cutting blade receiving seat 51 of the receiving seat table 22, the main cutting blade unit 41 is driven by the main punching driving device 18 and the auxiliary punching driving device 19. And the cutting blade receiving seat 51 is lowered by the receiving seat table elevating device 52.

During this main cutting, the pre-cutting blade unit 31 is also raised at the standby position II via the cutting blade support 26A, but since the standby position II is set at a position corresponding to the forming section W, The sheet S is not adversely affected.

Further, the slide devices 27A and 27B are driven so that the cutting blade support base 26B at the cutting position I is slid to the product discharging position III and accommodated in the positioning recess 44 to carry out the forming part W, and at the same time, the standby position II. The cutting blade support base 26A is slid to the cutting position I.

At the product discharge position III, the product transfer device 8 suctions and holds each forming part W from the positioning recess 44 of the main cutting blade unit 41 to the carry-out conveyor 8a, and the scrap sheet Ss has a plurality of guide rollers. It is taken up by the scrap sheet take-up device via the.

According to the above-described embodiment, in the trimming press device 7, the slide table 21 is utilized to alternately slide the pre-cutting blade unit 31 and the main cutting blade unit 41 to the cutting position I, so that one unit is provided. The trimming press device 7 can sequentially perform the pre-cutting process and the main cutting process, and can be downsized as compared with the conventional molding equipment equipped with two trimming press devices, and the occupied area can be significantly reduced. It is possible to reduce the manufacturing cost.

Further, the sheet conveying device 10 causes both edge portions Sa to
The resin sheet S held by is stretched particularly in the width direction due to heat shrinkage and the molding portion W is displaced. Since the uncut portion d is formed on the downstream side, it is possible to sufficiently allow the molding portion W to return to the normal position at the time of positioning. You can punch well. Of course, it is also possible to allow the positional deviation of the molding portion W in the transport direction due to the heat shrinkage of the resin sheet S.

Further, since the molding portion W separated from the resin sheet S by the main cutting blade 43 can be accommodated in the positioning portion 44 of the main cutting blade unit 41 and carried out at the product take-out position III, the slide table 21 can be arbitrarily arranged. The forming part W can be taken out at the position, and the degree of freedom in designing the forming equipment that employs the trimming press device 7 can be improved.

[0043]

As described above, according to the trimming press method of the first aspect, a plurality of cutting blades are slid in order at the cutting position where the cutting blade receiving seat is installed, and the molding portion is punched out from the resin sheet. Therefore, the trimming process can be performed a plurality of times at one cutting position (one trimming press device), and the manufacturing cost can be reduced and the trimming press device can be downsized.

According to the trimming press method of the second aspect, the pre-cutting by the pre-cutting blade and the main cutting by the main cutting blade perform a plurality of trimming steps at one cutting position, that is, one trimming press device. Therefore, the trimming press device can be downsized.

According to the trimming press device of the third aspect, a plurality of trimming steps can be performed by one trimming press device by sequentially sliding the cutting blade unit to the cutting position by the slide table and punching the resin sheet. Therefore, the manufacturing cost can be reduced and the trimming press can be downsized.

According to the trimming press device of the fourth aspect, the pre-cutting and the main cutting can be performed by one trimming press device, so that the manufacturing cost can be reduced and the trimming press can be downsized.

According to the trimming press device of the fifth aspect, the resin sheet whose both edges are held by the sheet conveying device is mainly pulled in the transverse direction due to thermal contraction to be displaced, but the resin sheet traverses the transverse direction. By forming the uncut portions on both sides of the line, that is, on the upstream side and the downstream side of the forming part, when the forming part is positioned on the positioning part, the misaligned forming part can be moved to the normal position. It can be easily returned and can be punched with high precision using this cutting blade.

According to the trimming press device of the sixth aspect, the molding portion separated from the resin sheet by the main cutting blade can be housed in the positioning portion of the main cutting blade unit and carried out at the product take-out position. By the arrangement, the product can be taken out at an arbitrary position, and the degree of freedom in designing the molding equipment adopting this trimming press device can be improved.

[Brief description of drawings]

FIG. 1 is an overall schematic side view showing an embodiment of a molding facility equipped with a trimming press device according to the present invention.

FIG. 2 is a partially cutaway side view of the trimming press device.

FIG. 3 is a plan sectional view of the trimming press device.

FIG. 4 is a side sectional view showing the slide table.

FIG. 5 is a side view showing the main punching drive device.

6 (a) and 6 (b) show the same resin sheet guide device,
(A) is a cross-sectional view and (b) is a partially enlarged view of (a).

FIG. 7 is a plan view of the resin sheet showing a pre-cut state by the trimming press device.

8 (a) and 8 (b) show a molding part of the resin sheet,
(A) is a plan view and (b) is a side sectional view.

FIG. 9 is a perspective view showing a pre-cutting blade unit of the trimming press device.

FIG. 10 is a perspective view showing a main cutting blade unit of the trimming press device.

11 (a) to 11 (c) are plan views showing cutting states of other molding portions by the trimming press device.

[Explanation of symbols]

S resin sheet W molding department L molding line B Heat forming section C cutting part SC main cutting line PC pre-cut line d Uncut portion I cutting position II Standby position III Product discharge position 1 resin sheet roll 4A, 4B Upper and lower mold 5 Press molding equipment 7 Trimming press device 8 Product transfer device 10 Seat guidance device 18 Main punching drive 19 Auxiliary punching drive 21 slide table 22 Seat table 26A, 26B Cutting blade support 27A, 27B slide device 31 pre-cutting blade unit 33 pre-cutting blade 33a Notch 41-piece cutting blade unit 43 cutting blades 44 Positioning recess

Claims (6)

[Claims] 1. When introducing a band-shaped resin sheet having a plurality of heat-formed molded parts and punching the molded parts, a plurality of cutting blades are sequentially slid to a cutting position where a cutting blade receiving seat is installed. And then at least one of the cutting blade and the cutting receiving seat is driven up and down to sequentially perform a plurality of trimming steps of punching out the resin sheet introduced between the cutting blade receiving seat and the cutting blade, and then performing the molding process from the resin sheet. A trimming press method characterized by separating. 2. A pre-cutting blade comprising at least two cutting blades, wherein the first cutting blade is a pre-cutting blade punched along a pre-cutting line having a plurality of uncut portions on an outer peripheral portion of a molded product. The cutting blade used after using the blade is characterized in that it is a main cutting blade that cuts the molding portion from the resin sheet by punching along the main cutting line over the entire circumference between the positioned molding portion and the pre-cutting line. The trimming press method according to claim 1. 3. A trimming press device for introducing a band-shaped resin sheet having a plurality of heat-formed molding parts and punching the molding parts, wherein a plurality of cutting blades are provided at cutting positions where cutting blade receiving seats are installed. Of the cutting blade unit and the cutting table, and at least one of the cutting blade unit and the cutting blade receiving seat is moved up and down to move the cutting blade and the cutting blade receiving seat. And a punching drive device for punching out a resin sheet introduced between the punching section and the molding section to separate the molding section. 4. A slide table is provided with at least two cutting blade units, and the pre-cutting blade unit used first has a resin sheet along a pre-cutting line having a plurality of uncut portions on the outer peripheral portion of a molded product. Having a pre-cutting blade for punching, the main cutting blade unit used after the pre-cutting blade,
4. A positioning part for positioning and holding the molding part, and a main cutting blade for punching a resin sheet around the entire circumference of the molding part inside the pre-cut line to separate the molding part from the resin sheet. Trimming press device. 5. A sheet conveying device for holding both edges of a resin sheet and conveying the sheet intermittently, wherein uncut portions by a pre-cutting blade are formed on both sides of a transverse line of the resin sheet, respectively. The trimming press device according to claim 4. 6. The method according to claim 4, wherein a stop position of the main cutting blade unit separated from the cutting position on the slide table is a product take-out position for taking out the molding section housed in the positioning section. Trimming press device described.