JP2007216594A - Member for regulating interval between plate members, and pin gate type mold equipped it - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a member for regulating an interval between plate members which can improve workability by securing a degree of freedom in the installation of various types of members without making them protrude from a template, and securing a space between a fixing-side template and a pup-up plate or between the templates. <P>SOLUTION: This member 20 for regulating the interval between the plate members comprises: a fixing-side mounting plate 1; the pup-up plate 4; the fixing-side template 2 and a movable-side template 3 which are provided in such a manner as to abut on the fixing-side mounting plate 1 via the pup-up plate 4; and a mold 5 which is provided in a joint between the templates 2 and 3. The member 20 is laid between the template 2 and the pup-up plate 4 of a pin gate-type mold for molding a resin molding 15 by infilling a molten resin into the mold 5 from a gate end through a sprue 6 and a runner gate 8, and/or between the templates 2 and 3. The member 20 is provided with a first member 21 the one end of which is pivotally attached to the pup-up plate 4, a second member 22 the one end of which is pivotally attached to the other end of the first member 21, and a notch 25 which is detachably engaged with the template 2 formed at the other end of the second member. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to an interval regulating member between plate members and a pin gate mold having the same, and in particular, the degree of freedom of installation of members and a working space are ensured to improve functionality and workability. The present invention relates to an interval regulating member between plate members and a pin gate mold having the same.

After injection molding of a resin molded product using a molding die, when the parting line (P / L) is opened and the protruding pin is ejected to take out the resin molded product, it is clogged in the gate which is a molding resin supply path. Therefore, a so-called gate cutting process for separating the resin is required.
By the way, a pinpoint gate type molding die in which a runner gate and a cavity are connected at a pinpoint so that a gate cutting operation is performed simultaneously with opening of P / L is widely adopted.

FIG. 10 is a cross-sectional view showing the main part of such a pinpoint gate mold (hereinafter simply referred to as a pin gate mold).
In FIG. 10, this pin gate mold includes a fixed side mounting plate 101, a fixed side mold plate 102 and a movable side mold plate 103, and a jump plate disposed between the fixed side mounting plate 101 and the fixed side mold plate 102. 104. The fixed mounting plate 101 is provided with a sprue 105, and the sprue 105 is connected to an injection nozzle (not shown) of the molding machine body. A cavity that constitutes a molding die 109 is provided at a joint portion between the fixed side mold plate 102 and the movable side template plate 103, and a molten resin is filled therein to mold the resin molded product 110.
A dharma pin 111 is provided so as to penetrate the fixed side mounting plate 101 and the jumping plate 104. The tip of the dharma pin 111 is processed into an undercut shape. After the resin molding, the Dalma pin 111 is separated from the resin molded product 110 with the runner 107 and the non-gate 108 attached to the jumping plate 104 when the P / L is opened and the resin molded product 110 is taken out. The four corners of the cross section of the molding die are provided with suspension pins (not shown). The suspension pins receive, for example, a load between the fixed side mold plate 102 and the jump plate 104, and open and close. The accuracy is maintained.

In such a pin gate mold, a molding resin injected from an injection nozzle of a molding machine (not shown) flows out from the sprue 105 into the mold by a predetermined molding pressure, and the sprue runner 106, the runner 107, and the runner gate. The resin mold 110 is molded by feeding through the gate tip of the runner gate 108 and filling and filling the mold 109.
When taking out the resin molded product 110, if the movable side mold plate 103 is moved to the anti-fixed side mold plate 102 side, the movable side mold is caused by the action of a joining force by a parting lock (not shown). While maintaining the contact state between the plate 103 and the fixed side mold plate 102, first, the first P / L 112 between the fixed side mold plate 102 and the popping plate 104 is opened by a predetermined interval, and then the fixed side mounting plate 101 and The second P / L 113 between the spring plate 104 and the jump plate 104 is opened by a predetermined interval regulated by a stopper bolt (not shown), and during this time, the resin (hereinafter referred to as solid resin) remaining in the sprue runner 106, the runner 107, and the runner gate 108 is solidified. , Which are referred to as sprue runner 106, runner 107 and runner gate 108, respectively, are separated from resin molded product 110. Thereafter, the third P / L 114 between the movable side mold plate 103 and the fixed side mold plate 102 that have been joined by the joining force of Plalock is opened, and the resin molded product 110 is taken out. Note that when the first P / L 112 is first opened, a repulsive force of, for example, four coil springs provided at equal intervals acts between the fixed side mold plate 102 and the jump plate 104.

  In such a pin gate mold, when the resin molded product 110 is taken out, the first P / L 112 is opened, the second P / L 113 is opened, and then the third P / L 114 is further opened. A restriction bolt is provided for restricting the distance from the popping plate 104 from opening more than a predetermined width.

  FIG. 11 is an explanatory view of a pin gate mold provided with such restriction bolts. In FIG. 11, when the first P / L that is a contact portion between the movable side mold plate 103 and the fixed side mold plate 102 is opened, the molding die has a gap between the fixed side mold plate 102 and the popping plate 104. For example, four (two not shown) regulating bolts 115 are provided to regulate the opening so as not to exceed a predetermined width. The restriction bolt 115 restricts the distance between the fixed-side mold plate 102 and the jumping plate 104 to a predetermined width when taking out the resin molded product.

  Further, in place of the restriction bolt 115, a pin gate mold employing a member called a so-called Kanzashi is widely used. FIG. 12 is an explanatory view of a pin gate mold to which the Kanzashi 116 is applied as a space regulating member between the plate members. In FIG. 12, this pin gate mold is provided with a kanji structure 116 in which a long member is provided with a hollow portion along its length direction as a member for regulating the distance between the fixed side mold plate 102 and the jump plate 104. . Kansai 116 regulates the interval between fixed side mold plate 102 and popping plate 104 to a predetermined width when taking out the resin molded product.

  As a conventional technique related to such a pin gate mold, for example, Patent Document 1 discloses a molding die developed for the purpose of preventing waste of material, speeding up mold opening, and making post-processing after mold release unnecessary. A molding die for a resin ferrule in which a cavity for molding a resin ferrule for an optical fiber connector having a capillary and a flange protruding in a radial direction from an outer peripheral portion of the capillary is formed. And a hot-chip type fixed mold having a resin supply part that opens and supplies resin in a molten state, and abuts against the parting surface of the fixed mold to transfer the molten resin from the resin supply part to the cavity A first movable mold formed with a runner; and the first movable mold in contact with the anti-fixed mold-side parting surface to cooperate with the first movable mold A second movable mold that forms an opening, and the runner faces the resin supply section and opens to the fixed mold side parting surface of the first movable mold, and from the introducer section toward the cavity A through-hole penetrating the first movable mold, the inner diameter of the through-hole gradually decreasing from the fixed mold side parting surface toward the anti-fixed mold side parting surface, and the cavity There is disclosed a molding die for a resin ferrule in which a filling port is formed as a pin gate having an opening at an intersecting surface with respect to the shoulder opening direction of the cavity.

JP 2005-161793 A

However, in the conventional technology that employs the above-described restriction bolt or Kanzashi, for example, in a resin molding state in which the fixed-side mold plate and the protruding plate are brought into contact, the end of the restriction bolt protrudes from the end of the movable-side mold plate. There was an inconvenience that the degree of freedom when installing the cooling water piping or the like could not be secured.
FIG. 13 is a view showing a molding state of the pin gate mold in which the fixed side mold plate and the jumping plate of FIG. 11 are brought into contact with each other. In FIG. 13, a restriction bolt 115 that is a distance restriction member between the plate members protrudes to the right in the drawing of the movable side mold plate 103.
In addition, in order to take out the resin molded product, the contact portion between the P / L and the fixed side mold plate and the jumping plate is opened, but at this time, the runner and the runner gate may not be dropped while attached to the fixed side mold plate. In this case, it is necessary for the operator to insert a hand into the gap between the fixed-side template and the jumping plate to remove it.
However, in the prior art employing the regulation bolt or the Kanzashi, as shown in FIGS. 11 and 12, the regulation bolt or the Kanzashi is arranged above and below the space portion between the fixed side mold plate and the jumping plate. Therefore, there is a problem that the working space cannot be secured, the gate cannot be efficiently removed, and the working efficiency is lowered. In addition, since the fixed side template is high temperature, there is a problem that the operator easily burns the hand.
The present invention has been made in view of the problems of the prior art, and its problem is to ensure flexibility in installing various members without protruding from the width of the mold, An object of the present invention is to provide a space regulating member between plate members that can secure a space portion between the plate members and improve workability, and a pin gate mold including the member.

  In order to solve the above-described problem, a spacing regulating member between plate members according to the present invention includes a fixed-side mounting plate, a jumping plate that comes into contact with the fixed-side mounting plate, and the fixed-side mounting plate via the jumping plate. A fixed-side mold plate and a movable-side mold plate provided so as to sequentially contact the fixed-side mold plate, and a molding die provided at a joint portion between the fixed-side mold plate and the movable-side mold plate, the fixed-side mounting plate Between the jump plate and the fixed side mold plate of a pin gate mold for molding a resin molded product by filling the mold with molten resin from the gate tip through a sprue and a runner gate provided on the gate and / or In the space regulating member between the plate members hung between the fixed side mold plate and the movable side mold plate, a first member having one end pivotally attached to one plate member, and the other end of the first member And a second member having one end pivotally attached to the second member and the other end of the second member. And having an engaging portion for engageable releasably with the other plate member.

In this case, when the one plate member and the other plate member are brought into contact with each other, the pivot point between the first member and the second member is the pivot point between the one plate member and the first member. It is preferable to move and bend below a virtual straight line connecting a point and an engagement point between the other plate member and the second member.
Further, the engaging portion of the second member with the other plate member has a notch portion in which the second member is engaged with a protrusion provided on the other plate member, and the notch portion is An inlet groove, a locking portion that locks the protrusion of the other plate member, a wide portion provided to face the locking portion, and an inclined plane extending from the locking portion to the wide portion. And when the one plate member and the other plate member are brought into contact with the end portion of the inlet groove on the side of the locking portion, the first member and the second member together with the inclined plane The convex part which pushes down a pivot point downward can be provided.
Furthermore, the recessed part which absorbs the movement of the projection part of said other board member may be provided in the inclined plane facing the said convex part.
Furthermore, the one plate member can be provided with a pin member that restricts the upward turning of the first member.

Further, when the one plate member and the other plate member are brought into contact with each other, the pivot point between the first member and the second member is the pivot point between the one plate member and the first member. The second plate member and the second member may be bent by moving upward from a virtual straight line connecting the engagement points of the second member.
In this case, the engaging portion of the second member with the other plate member has a notch portion in which the second member engages with a protrusion provided on the other plate member. Is an entrance groove, a locking portion that locks the protrusion of the other plate member, a wide portion provided to face the locking portion, and an arc shape extending from the locking portion to the wide portion When the first member and the second member are brought into contact with the arcuate inner wall surface, the pivot of the first member and the second member is jointed with the arcuate inner wall surface. It is preferable that a convex portion that pushes the landing point upward is provided.
Further, the one plate member may be provided with a pin member that restricts downward turning of the first member.
Furthermore, the length from the pivot point of the first member with the one plate member to the pivot point of the second member is determined from the pivot point of the second member with the first member. Longer than the length of the first member with the first member, and the pivot of the second member with the first member from the pivot point of the second member with the first member. It is preferable that the length is shorter than the length to the inner wall surface.
Furthermore, a pin member that restricts turning of the second member can be provided on the first member.

  The pin gate mold according to the present invention includes a fixed-side mounting plate, a jumping plate that contacts the fixed-side mounting plate, and a fixed plate that is provided so as to sequentially contact the fixed-side mounting plate via the jumping plate. Spacing regulation between the side mold plate and the movable side mold plate, the molding die provided at the joint between the fixed side mold plate and the movable side mold plate, and the plate members that engage the plate members with each other in a freely detachable manner. A pin gate mold for molding a resin molded product by filling a molten resin into a mold from a gate tip through a sprue and a runner gate provided on the fixed side mounting plate The interval regulating member between the members is the above-described interval regulating member between any one of the plate members.

  According to the present invention, at the time of taking out a resin molded product, it is possible to secure a sufficient working space between adjacent plate members and improve workability. Moreover, the protrusion from the movable side template at the time of shaping | molding to a movable side is eliminated, and thereby the freedom degree at the time of member arrangement | positioning can be improved.

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings.
1 to 4 are explanatory diagrams viewed from the operation side of a pin gate mold according to an embodiment of the present invention, and FIGS. 5 and 6 are spacing regulating members between plate members attached to the pin gate mold, respectively. It is explanatory drawing of.
In FIG. 1, the molding die is in contact with the fixed-side mounting plate 1 through the fixed plate 1, the protruding plate 4 that contacts the fixed-side mounting plate 1, and the protruding plate 4. The fixed-side mold plate 2 and the movable-side mold plate 3 provided, and the molding die 5 provided at the joint between the fixed-side mold plate 2 and the movable-side mold plate 3 are mainly configured.
A sprue 6 is attached to the fixed side mounting plate 1, and this sprue 6 is connected to a sprue runner 7 provided so as to penetrate the fixed side mounting plate 1 and the jumping plate 4. A runner gate 8 is provided so as to penetrate the fixed-side mold plate 2, and the gate tip of the runner gate 8 is connected to the cavity of the mold 5. A dharma pin 10 is provided so as to penetrate the fixed-side mounting plate 1 and the jumping plate 4, and an undercut portion is formed at a tip end portion extending to the end portion of the runner gate 8 of the dharma pin 10. The sprue runner 6 and the runner gate 8 are connected by a runner 9 provided on a contact surface of the fixed-side template 2 with the jumping plate 4. The daruma pin 10 is separated from the resin molded product 15 with the runner 9 and the runner gate 8 attached to the jumping plate 4 when the first P / L 13 is opened after the resin molding and the resin molded product 15 is taken out.

Hanging pins 16 are respectively provided at the four corners of the quadrangular section of the molding die. The hanging pins 16 receive a load between the fixed side mold plate 2 and the jump plate 4 to maintain the opening / closing accuracy. I'm leaning.
A parting lock 17 is provided between the fixed side mold plate 2 and the movable side mold plate 3, and the parting lock 17 is initially placed between the fixed side mold plate 2 and the movable side mold when the third P / L 13 is opened. First, the first P / L 11 and the second P / L 12 are opened, and then the third P / L 13 is opened. Also, for example, four coil springs 18 are provided between the fixed side mold plate 2 and the jump plate 4, and the coil springs 18 are initially fixed by the repulsive force when the second P / L 12 is opened. The side mold plate 2 and the jumping plate 4 are biased in the opening direction. Further, for example, four stopper bolts 19 are provided at regular intervals between the fixed side mounting plate 1 and the jumping plate 4, and the stopper bolts 19 are spaced from the fixed side mounting plate 1 and the jumping plate 4. To regulate.

Between the jumping plate 4 and the fixed-side mold plate 2, an interval restricting member (hereinafter simply referred to as an interval restricting member) between toggle-shaped plate members is stretched.
In FIG. 5, which is an exploded view of the interval restricting member, and FIG. 6, which is an assembly view, the interval restricting member mainly includes a first member 21 and a second member 22. A bolt through hole 23a is provided at one end of the first member 21, and a bolt through hole 23b is provided at the other end. In addition, a spring pin through hole 27 is provided in the upper part of the figure in the approximate center of the imaginary straight line connecting the bolt through holes 23a and 23b, and the spring pin 28a is fitted into the through hole 27.
One end of the second member 22 is provided with a bolt through hole 23c, and the other end is provided with a notch 25 that engages with a protrusion of another plate member. The notch 25 is provided so as to face the locking portion 25b and the locking portion 25b that locks the protrusion of the other plate member when the gap between the inlet groove 25a and the plate member is opened. A wide portion 25c and an inclined flat surface 25d extending from the locking portion 25b to the wide portion 25c are provided, and a convex portion 26 is provided at an end of the inlet groove 25a on the locking portion 25b side. The inclination angle of the inclined plane 25d is, for example, 15 to 30 degrees. When the spacing member 20 is spanned between the plate members and the plate members are brought into contact with each other, the convex portion 26 collides with the protruding portion of the other plate member and cooperates with the inclined plane 25d to form the first member 21. A stepped bolt 24b, which will be described later, which is a pivot point between the first member 22 and the second member 22, is pushed downward.

The first member 21 and the second member 22 overlap the bolt through hole 23c of the second member and the bolt through hole 23b of the first member with the second member facing upward, and a washer 29 is placed in the through hole. Assembling is performed by inserting the inserted stepped bolt 24b and fitting it into the screw portion provided in the bolt through hole 23b of the first member. An interval of 0.2 to 0.3 mm, for example, is provided between the head portion of the stepped bolt 24b and the washer 29 in order to ensure a pivoted state.
When mounting the space regulating member 20 between the plate members, the pedestal 30 is used. The pedestal 30 is disposed between the second member 22 and the other plate member, for example, the side surface of the fixed-side template, and the thickness thereof is, for example, 10 mm, like the first member 21. The pedestal 30 is provided with a bolt through hole 23e into which a stepped bolt 24c as a protruding portion that engages with the notch 25 of the second member 22 is inserted, and above and below the bolt through hole 23e. Bolt through holes 23d and 23f are provided. The through holes 23 d and 23 f are used for bolts for attaching the pedestal 30 to the stationary side template 2. After the pedestal 30 is attached to the side surface of the fixed-side template 2, a stepped bolt 24 c serving as a protrusion is fitted into the bolt through hole 23 e. The pedestal 30 may have a circular shape on the plan view, as well as a rectangular shape on the plan view, and other shapes.

After attaching the pedestal 30 to the stationary side template 2, the stepped bolt 24 a is inserted into the bolt through hole 23 a of the first member 21 of the distance regulating member 20 in which the first member 21 and the second member 22 are pivotally attached. Then, it is pivotally attached to the side surface of the jumping plate 4 which is one plate member. A gap of about 0.2 to 0.3 mm, for example, is provided between the stepped bolt 24a and the first member 21 without being in close contact. Next, the notch portion 25 of the second member 22 is engaged with a stepped bolt 24c as a projection provided on the side surface of the fixed side mold plate 2 which is another plate member as described above, thereby separating the gap. The mounting of the regulating member 20 on the mold is completed.
The length of the protruding portion as the protruding portion of the stepped bolt 24c is, for example, about 0.2 to 0.3 mm longer than the thickness of the second member 22 except for the head portion, thereby ensuring a pivoted state. Yes.
The spring pin 28b provided on the first member 21 has a stepped bolt 24b at which the first member 21 and the second member 22 are pivoted when the plate members on which the spacing regulating member 20 is mounted are brought into contact with each other. When the portion is bent, as shown in FIG. 1, it contacts the side surface of the second member 22 and functions as a positioning member. In addition, a spring pin 28a is provided obliquely above the stepped bolt 24a of the jumping plate 4, and this spring pin 28a is used when the plate members with the spacing regulating member 20 are brought into contact with each other. Functions as a positioning member that restricts the lens from turning upward. Further, a spring pin 28c is provided below the stepped bolt 24a of the jumping plate 4, and this spring pin 28c is provided on the first member 21 when the plate members on which the interval regulating member 20 is mounted are brought into contact with each other. It contacts the side surface and functions as a positioning member.

Hereinafter, the operation of the pin gate mold equipped with the interval regulating member 20 having such a configuration will be described with reference to the drawings.
In a pin gate mold in which the interval regulating member 20 is mounted between the jumping plate 4 and the movable side mold plate 2, a molding resin is injected at a predetermined pressure from an injection nozzle of a molding machine (not shown), and the mold is passed through the sprue 6. The molded product 5 is filled from the gate tip of the runner gate 8 through the sprue Nanner 7, the runner 9 and the runner gate 8, and the resin molded product 15 is molded.
When the resin molded product 15 is taken out after molding, as shown in FIG. 2, the movable side mold plate 3 is moved to the anti-fixed side mold plate 2 side. At this time, the parting lock 17 acts as a bonding material, and the first part between the fixed side mold plate 2 and the jumping plate 4 is first maintained while maintaining the contact state between the movable side mold plate 3 and the fixed side mold plate 2. 1P / L11 opens. At this time, the first member 21 and the second member 22 of the spacing regulating member 20 mounted between the fixed side mold plate 2 and the jumping plate 4 are at a predetermined angle with the stepped bolt 24b portion, which is a pivotal portion thereof, as a fulcrum. By turning, the two members become a straight line, whereby the interval regulating member 20 is fully extended, and the interval between the fixed side mold plate 2 and the jump plate 4 is regulated to a predetermined width, for example, 120 mm.

After the first P / L 11 is opened by a predetermined interval in this way, the second P / L 12 between the fixed side mounting plate 1 and the jumping plate 4 is opened by a predetermined interval regulated by the stopper bolt 19, for example, 12 mm, Thereby, as shown in FIG. 3, the sprue nanner 7, the runner 9 and the runner gate 8 are separated from the resin molded product 15 and each plate member and dropped. Thereafter, the joining of the movable side mold plate 3 and the fixed side mold plate 2 due to the joining force of the plastic lock 17 is released, the third P / L 13 is opened, and the resin molded product 15 is ejected and collected by the ejector pins 31.
When the resin molded product 15 is ejected, as shown in FIG. 4, the runner 9 and / or the runner gate 8 (hereinafter simply referred to as a gate) may not fall and remain attached to the fixed-side template 2. In some cases, the molding operation of the resin molded product 15 cannot be continued.
Such troubles are dealt with as follows, for example. That is, when the resin molded product 15 is ejected, if the gate does not drop and remains attached to the fixed side mold plate 2, first, the operation of the molding machine main body is stopped, and in this state, the fixed side mold is manually operated. The plate 2 is moved to the counter-acting side mold plate 3 side, that is, the right side in FIG. remove. In this way, when the engagement state between the space regulating member 20 and the fixed side mold plate 2 is released, the space regulating member 20 hangs down in the vertical direction with one end of the first member 21 engaged with the protruding plate 4, A wide working space is ensured between the fixed-side template 2 and the jumping plate 4. After securing the work space in this way, the gate attached to the fixed side template is removed manually.

  After removing the gate, the current state is restored. That is, the notch 25 of the second member 22 of the spacing regulating member 20 is engaged with the protrusion 24c of the fixed-side template 2, and in this state, the first to third P / Ls are closed and the plate members are brought into contact with each other. Then, the protrusion 24c of the fixed-side template 2 presses the convex portion 26 formed on the wall surface of the inlet groove 25a of the notch 25 of the spacing regulating member 22 downward in FIG. 4 or FIG. The regulating member 20 is bent into a V shape with the stepped bolt 24b, which is a pivot point, as a fulcrum, and the mold is in a molded state (see FIG. 1). Thereafter, the molding process is restarted without purging the resin in the cylinder of the molding machine.

According to the present embodiment, when the gate does not protrude and remains attached to the template, the engagement state between the notch 25 of the second member 22 and the protrusion 24c of the fixed-side template 2 is manually set. Since it can be freed up, a working space is secured, so that the gate can be quickly removed and the current state can be restored.
Moreover, since the space | interval control member 20 bends in the pivot part 24b of the 1st member 21 and the 2nd member 22, it does not protrude from the edge part of a plate member in the molding state which contacted each plate member, For example, it is possible to improve the working efficiency by securing the degree of freedom of arrangement such as the cooling water flow path and the insertion position of the undercut member.
Further, the upward movement of the first member 21 is restricted by the spring pin 28b, and the first member 21 and the second member 22 are positioned by the spring pins 28a and 28c, respectively. A stable resin molding operation can be continued for a long time.
Furthermore, according to the present embodiment, the distance regulating members 20 are arranged one on each of the left and right sides of the mold, and can be bent by two members, so that the stress error in each part of the mold can be reduced. Since it is absorbed by the toggle-shaped interval regulating member (particularly, the pivoting portion 24b of the first member 21 and the second member 22), a smooth operation is possible.

In the present embodiment, the end portion of the side wall surface of the wide portion 25c of the inlet groove 25a of the notch 25 in the second member 22 of the spacing regulating member 20 is shown in FIG. As shown, it is configured to be higher than the central portion of the protrusion 24 c provided on the movable side mold plate 2. As a result, the engagement state between the notch 25 and the protrusion 24c is reliably maintained so that it is not released except for an artificial state.
In addition, you may make it provide the leaf | plate spring 32 for the forgetting prevention of the shape which protruded in the convex shape or the circular arc shape in the notch part in the entrance groove part of the notch part 25. FIG.
In the present embodiment, when the notch 25 of the second member 22 of the spacing regulating member 20 is engaged with the protrusion 24 c of the movable-side template 2, the protrusion 24 c and the protrusion 26 provided on the notch 25, It is better not to provide a gap as much as possible. As a result, when the fixed-side mold plate 2 and the jumping plate 4 are brought into contact with each other, an acting force that presses the pivoting portion 24b between the first member 21 and the second member 22 of the convex portion 26 immediately below is immediately provided. Comes to work.
In this embodiment, although the space | interval control member 20 was mounted | worn only between the fixed side mold plate 2 and the jumping plate 4, this invention is not limited to this, The fixed side mold plate 2 and the jumping plate 4 You may make it mount | wear to both or any one between between and between the stationary side template 2 and the movable side template 3. By providing the space regulating member 20 between the fixed side mold plate 2 and the movable side mold plate 3, the effect that the resin molded product 15 can be easily taken out and confirmed can be obtained.

7-9 is explanatory drawing which shows the pin gate metal mold | die which concerns on 2nd Embodiment of this invention. The difference between the pin gate mold and the first embodiment is that the bending direction of the interval regulating member 20 is set upward.
That is, in FIG. 7, the stopper which prevents the 1st member 21 of the space | interval control member 20 from turning diagonally downward of the step bolt 24a which is the pivoting part of the 1st member 21 to the jumping board 4 is provided. And the shape of the notch 45 of the second member 22 is changed to a shape in which the first member 21 and the second member 22 bend upward at the pivotal portion. In addition, naturally the stopper 28a (refer FIG. 1) which prevents the 1st member 21 turning upwards is deleted.
In FIG. 9, the notch 45 of the second member 22 has a cloud ruler shape. In other words, the notch 45 is provided opposite to the inlet groove 45a, a locking portion 45b that locks the projection 24c of the fixed plate 2 that is the other plate member, and the locking portion 45b. A wide part 45c and an arcuate inner wall surface 45d extending from the locking part 45b to the wide part 45c are provided, and the arcuate inner wall surface 45d is joined to the arcuate inner wall surface 45d by a single plate member. When a certain fixed-side template 2 and the jumping plate 4 that is another plate member are brought into contact with each other, the stepped bolt 24b that is the pivot point of the first member 21 and the second member 22 is pushed upward. An operating convex portion 46 is provided.

In such a configuration, the state in which the space regulating member 20 is mounted between the solid side mold plate 2 and the jump plate 4, that is, the notch 45 of the second member 22 is engaged with the protrusion 24 b of the fixed side mold 2. In the state shown in FIG. 8, when the solid side mold plate 2 and the ejecting plate 4 are moved so as to contact each other, the protruding portion 24 c of the fixed side mold plate 2 is protruded from the locking portion 45 b of the notch 45. 46, and reaches the wide portion 45c while being in sliding contact with the upper surface of the arc 46 and the wall surface of the arc-shaped inner wall surface 45d. As a result, as shown in FIG. 7, the pivoting portion 24b between the first member 21 and the second member 22 is reached. Is pushed upward in FIG. 7 and bent.
On the other hand, when the space between the solid side mold plate 2 and the protruding plate 4 is opened in the state of FIG. 7, the first member 21 and the second member 22 extend in a straight line via the pivotally mounted portion 24 b, and are fully extended. Regulate that further intervals will open.

According to this embodiment, as in the first embodiment, when the gate does not protrude and remains attached to the template, the notch 45 of the second member 22 and the protrusion 24c of the fixed-side template 2 Therefore, the working space is secured, and the gate can be quickly removed to restore the current state.
Moreover, since the space | interval control member 20 bends in the pivot part 24b of the 1st member 21 and the 2nd member 22, it does not protrude from the edge part of a plate member in the molding state which contacted each plate member, For example, it is possible to improve the working efficiency by securing the degree of freedom of arrangement such as the cooling water flow path and the insertion position of the undercut member.
Further, the downward rotation of the first member 21 is restricted by the spring pin 41c, and the second member 22 is positioned by the spring pin 41b provided on the first member 21, so that the operation of the interval restriction member is performed. A stable resin molding operation can be continued for a long time.
In addition, according to the present embodiment, the distance regulating member is mounted on each of the left and right sides of the mold one by one, and the toggle structure that can be bent by the two members is used, thereby reducing the stress error at each part of the mold. Absorbs and enables smooth operation for a long time.
Further, according to the present embodiment, the interval regulating member 20 composed of the first member 21 and the second member 22 is configured such that the pivoting portion 24b moves upward and bends. In addition to the effect of the form, the effect of further expanding the functional range in design can be obtained.

It is a side view of the pin gate metal mold | die provided with the space | interval control member which concerns on this invention. It is explanatory drawing which shows the state which opened the space | interval of the two board members in FIG. It is explanatory drawing which shows the state by which the gate in FIG. 2 was cut off. It is explanatory drawing which shows the state which the runner gate in FIG. 2 remained without falling. It is an exploded view of the space | interval control member which concerns on embodiment of this invention. It is an assembly drawing of the space | interval control member which concerns on embodiment of this invention. It is a side view of the pin gate metal mold | die which is 2nd Embodiment of this invention. It is explanatory drawing which shows the state which opened the space | interval of the two board members in FIG. It is an exploded view of the space | interval control member which concerns on other embodiment of this invention. It is explanatory drawing of a prior art. It is a side view of the pin gate metal mold | die provided with the conventional space | interval control member. It is a side view of the pin gate metal mold | die provided with the conventional space | interval control member. It is explanatory drawing which shows the fault of a prior art.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Fixed side mounting plate 2 Fixed side die plate 3 Movable side die plate 4 Ejection plate 5 Forming die 6 Sprue 7 Sprue runner 8 Runner gate 9 Runner 10 Dalma pin 11 First parting line 12 Second parting line 13 Third parting Line 14 Guide pin 15 Resin molded product 16 Hanging pin 17 Parting block 18 Coil spring 19 Stopper bolt 20 Spacer regulating member 21 First member 22 Second member 23a to f Bolt through hole 24a to c Stepped bolt 25 Notch 25a Entrance groove 25b Engagement part 25c Wide part 25d Inclined wall surface 25e Recess 26 Protrusion 27 Spring pin through holes 28a-c Spring pin 29 Washer 30 Base 31 Ejector pin 32 Leaf spring 41b, c Spring pin 45 Notch 45a Inlet groove 45b Locking part 45c Wide part 5d arcuate inner wall surface 46 protruding portion 101 fixed side mounting plate 102 fixed die plate 103 movable side mold plate 104 springing plate 105 sprue 106 sprue runner 107 runner 108 Nanna over gate 109 mold 110 resin molded product 111 Darumapin 115 regulating bolt 116 hairpin

Claims (11)

A fixed-side mounting plate, a jumping plate that contacts the fixed-side mounting plate, a fixed-side mold plate and a movable-side mold plate provided so as to sequentially contact the fixed-side mounting plate via the jumping plate, A molding die provided at a joint portion between the fixed side mold plate and the movable side die plate, and a molten resin is supplied from the gate tip to the molding die through a sprue and a runner gate provided on the fixed side mounting plate. Between pin members that are hung between the protruding plate and the fixed side mold plate and / or between the fixed side mold plate and the movable side mold plate of the pin gate mold for filling and molding a resin molded product In the interval regulating member,
A first member having one end pivotally attached to one plate member, a second member having one end pivotally attached to the other end of the first member, and the other plate member provided at the other end of the second member And an engaging portion that is detachably engaged with each other.   When the one plate member and the other plate member are brought into contact with each other, the pivot point between the first member and the second member is the pivot point between the one plate member and the first member, The space regulating member between plate members according to claim 1, wherein the member is bent by moving downward from an imaginary straight line connecting the engagement points of the other plate member and the second member.   The engaging portion of the second member with the other plate member has a cutout portion in which the second member engages with a protrusion provided on the other plate member, and the cutout portion has an inlet groove. A locking portion that locks the protruding portion of the other plate member, a wide portion provided to face the locking portion, and an inclined plane that extends from the locking portion to the wide portion. When the one plate member and the other plate member are brought into contact with the end portion of the inlet groove of the inlet groove, the first member and the second member are pivotally coupled together with the inclined plane. The spacing regulating member between plate members according to claim 2, wherein a convex portion for pressing the point downward is provided.   The space regulating member between plate members according to claim 3, wherein a concave portion that absorbs the movement of the protruding portion of the other plate member is provided on an inclined plane that faces the convex portion.   5. The plate member according to claim 2, wherein a pin member that restricts upward turning of the first member is provided on the one plate member. 6. Spacing regulating member.   When the one plate member and the other plate member are brought into contact with each other, the pivot point between the first member and the second member is the pivot point between the one plate member and the first member, 2. The space regulating member between plate members according to claim 1, wherein the plate is moved and bent above a virtual straight line connecting the engagement points of the other plate member and the second member.   The engaging portion of the second member with the other plate member has a cutout portion in which the second member engages with a protrusion provided on the other plate member, and the cutout portion has an inlet groove. A locking portion that locks the protruding portion of the other plate member, a wide portion provided opposite to the locking portion, and an arc-shaped inner wall surface extending from the locking portion to the wide portion. When the first member and the second member are brought into contact with the arc-shaped inner wall surface, the pivot point of the first member and the second member is set upward together with the arc-shaped inner wall surface. The space | interval regulation member between board members of Claim 6 provided with the convex-shaped part pushed up toward the board | substrate.   The space regulating member between plate members according to claim 6 or 7, wherein the one plate member is provided with a pin member that restricts downward turning of the first member.   The length from the pivot point of the first member with the one plate member to the pivot point of the second member is from the pivot point of the second member to the first member. It is longer than the length of the first member with the first member, and from the pivot point of the second member with the first member to the first member of the inlet groove in the notch portion. The space regulating member between plate members according to any one of claims 3 to 8 (excluding claim 6), wherein the spacing regulating member is shorter than the length to the wall surface.   The space regulating member between plate members according to claim 2, wherein the first member is provided with a pin member that restricts turning of the second member. A fixed-side mounting plate, a jumping plate that contacts the fixed-side mounting plate, a fixed-side mold plate and a movable-side mold plate provided so as to sequentially contact the fixed-side mounting plate via the jumping plate, The fixed side mounting plate, comprising: a molding die provided at a joint portion between the fixed side mold plate and the movable side mold plate; and a spacing regulating member between the plate members that detachably engage with each other. In a pin gate type molding die for molding a resin molded product by filling the molding die with a molten resin from the tip of the gate via a sprue and a runner gate provided on the gap member, the space regulating member between the plate members is 1. A pin gate mold according to any one of 1 to 10, wherein the pin gate mold is a space regulating member between plate members.

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