WO2024084682A1 - パーティングロック装置 - Google Patents
パーティングロック装置 Download PDFInfo
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- WO2024084682A1 WO2024084682A1 PCT/JP2022/039277 JP2022039277W WO2024084682A1 WO 2024084682 A1 WO2024084682 A1 WO 2024084682A1 JP 2022039277 W JP2022039277 W JP 2022039277W WO 2024084682 A1 WO2024084682 A1 WO 2024084682A1
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- WIPO (PCT)
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- insertion hole
- lock bar
- bar insertion
- lock
- release bar
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C33/00—Moulds or cores; Details thereof or accessories therefor
- B29C33/20—Opening, closing or clamping
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- the present invention relates to a parting lock device used in a three-plate type injection molding machine.
- Injection molding machines for molding resins and metals include three-plate types that have a fixed mold and a movable mold (hereinafter referred to together as "both molds") that form the molding cavity, as well as a stripper plate that moves in and out of contact with the fixed mold.
- a parting lock device is used to ensure that the gap between the stripper plate and the fixed mold opens after the product is molded, as shown below, before the two molds open.
- the normal molding procedure for a three-plate injection molding machine is to first insert the tip of the spool bush into the stripper plate, and in this state, supply molten resin or metal material to the spool bush.
- the molten material supplied to the spool bush is guided from the space between the stripper plate and the fixed mold to a gate installed in the fixed mold, and is injected into the cavity between the fixed mold and the movable mold where it solidifies.
- the fixed mold is then pulled away (opened) from the stripper plate, and the solidified runner portion between the stripper plate and the fixed mold is separated from the product that has solidified within the cavity.
- the movable mold is pulled away (opened) from the fixed mold, and the product is removed.
- the stripper plate and the fixed die are separated before the two dies are separated, preventing deformation of the product. Until the stripper plate and the fixed die are separated to a certain extent and the runner section is separated from the product, it is necessary to maintain the two dies in close contact (to prevent the two dies from separating), and this function is performed by the parting lock device.
- the parting lock device described in Patent Document 1 is made up of a release bar 52 fixed to a stripper plate (first plate) 51, a base holder 54 fixed to a fixed die (second plate) 53 and having a bar insertion hole 54a, a lock bar 56 fixed to a movable die (third plate) 55, a roller 57 supported so as to be able to roll within the bar insertion hole 54a of the base holder 54, and a spring 58 that biases the roller 57 toward the unlocked position.
- the release bar 52 and lock bar 56 are arranged so as to be freely inserted and removed from the bar insertion hole 54a of the base holder 54, and the lock bar 56 is provided with an engagement recess 56a into which the roller 57 fits.
- the roller 57 biased by the spring 58 is in the unlocked position.
- the two molds 53, 55 do not separate until the fixed mold 53 separates to a certain extent from the stripper plate 51 and the release bar 52 is removed from the bar insertion hole 54a of the base holder 54.
- the roller 57 returns to the unlocked position due to the elastic force of the spring 58, the two molds 53, 55 become separable, and the movable mold 55 is pulled away from the fixed mold 53.
- the present invention aims to provide a parting lock device that has a simple structure and can perform stable mold clamping operations.
- the parting lock device of the present invention comprises a base holder having a release bar insertion hole and a lock bar insertion hole extending parallel to each other, a release bar arranged to be insertable and detachable into the release bar insertion hole, a lock bar arranged to be insertable and detachable into the lock bar insertion hole, and an engagement element built into the base holder, the base holder being provided with a guide hole for guiding movement of the engagement element in a direction perpendicular to an extension direction of the release bar insertion hole and the lock bar insertion hole, the guide hole being provided with a communication passage penetrating a partition wall between the release bar insertion hole and the lock bar insertion hole, and a storage recess formed on an inner surface of a side wall facing the partition wall across the lock bar insertion hole.
- the engagement piece has a stopper portion that appears and disappears from the communication passage of the guide hole into the release bar insertion hole, a first engagement portion that appears and disappears from the communication passage of the guide hole into the lock bar insertion hole, and a second engagement portion that appears and disappears from the storage recess of the guide hole into the lock bar insertion hole
- the release bar is provided with an abutment portion at its insertion tip into the release bar insertion hole that abuts against the stopper portion protruding into the release bar insertion hole
- the lock bar has a concave first cam portion that selectively receives the first engagement portion of the engagement piece and pushes it into the communication passage of the guide hole depending on the movement direction during insertion and removal, and a second cam portion that pushes the second engagement portion of the engagement piece that protrudes into the lock bar insertion hole into the storage recess of the guide hole
- the second cam portion presses the second engaging portion of the engaging element, so that the second engaging portion retracts into the storage recess of the guide hole, the first engaging portion protruding into the lock bar insertion hole to enter the first cam portion of the lock bar, and the stopper portion is moved to a locked position where it is immersed in the communicating passage of the guide hole, and when the engaging element is in the locked position, a release bar inserted into the release bar insertion hole restricts movement of the engaging element to the unlocked position, thereby preventing the lock bar from slipping out of the lock bar insertion hole, and when the engaging element is in the locked position and no release bar is inserted into the release bar insertion hole, when the lock bar is pulled out of the lock bar insertion hole, the first cam portion presses the first engaging portion of the engaging element, thereby returning the engaging element to the unlocked position.
- a state in which the release bar is not inserted into the release bar insertion hole includes a state in which the release bar does not restrict movement of the engagement element to the unlocked position even if the insertion tip of the release bar is inside the release bar insertion hole (the same applies below).
- the above configuration has a simple structure requiring only a base holder, release bar, lock bar, and engaging element, and when the lock bar is not inserted into the lock bar insertion hole, the stopper portion of the engaging element, which is in the unlocked position, prevents the release bar from being inserted into the release bar insertion hole, and when the lock bar is inserted into the lock bar insertion hole, the engaging element is moved to the locked position. This means that there is no risk of the release bar being inserted before the lock bar, making it impossible to clamp the mold, and the mold clamping operation can be performed stably.
- the engaging element can be more reliably held in the unlocked position when the lock bar is not inserted into the lock bar insertion hole, preventing erroneous insertion of the release bar.
- the stopper portion of the engaging element is formed so that its thickness dimension is smaller than that of the release bar, and that the release bar is provided with a recess in part of the thickness direction of the insertion tip, including an abutment portion that abuts against the stopper portion protruding into the release bar insertion hole, and at least both sides of the tip surface of the insertion tip portion excluding the recess are formed into a convex arc surface.
- the "thickness" direction of each member refers to the direction perpendicular to both the extension direction of the release bar insertion hole and lock bar insertion hole and the movement direction of the engaging element (the same applies below). In this way, even when there is some misalignment between the release bar away from the base holder and the release bar insertion hole, the insertion tip of the release bar can be smoothly inserted into the release bar insertion hole.
- the parting lock device of the present invention is designed so that a release bar can be inserted into the release bar insertion hole of the base holder by inserting a lock bar into the lock bar insertion hole of the base holder and moving the engaging element built into the base holder to the locked position, and subsequent insertion of the release bar restricts the movement of the engaging element to the unlocked position.
- This simple structure prevents erroneous insertion of the release bar prior to the lock bar, and ensures stable mold clamping operation.
- FIG. 1 is a front view showing an outline of a main part of an injection molding machine using a parting lock device according to an embodiment (in a mold clamping state);
- FIG. 2 is an exploded perspective view of the parting lock device of FIG. 1 as viewed obliquely from above;
- FIG. 3 is an exploded perspective view of the main part of FIG. 2 as viewed obliquely from below.
- FIG. 2 is a front view showing the parting lock device of FIG. 1 before clamping (without the lid);
- 5 is a cross-sectional view taken along line VV of FIG.
- FIG. 5 is a partially cutaway front view showing a state during the mold clamping operation corresponding to FIG. 4;
- FIG. 7 is a partially cutaway front view showing a state following FIG.
- FIG. 2 is a front view showing a state during the mold opening operation corresponding to FIG. 1;
- FIG. 1 is a front view showing a state following FIG. 9 during the mold opening operation, corresponding to FIG.
- FIG. 2 is a front view showing a mold open state corresponding to FIG. 1;
- FIG. 13 is an exploded perspective view of a modified example of the release bar and the engagement element, seen obliquely from above.
- FIG. 13 is an exploded perspective view of the release bar and the engagement piece shown in FIG. 12, viewed obliquely from below.
- FIG. 14 is a partially cutaway front view showing a state before mold clamping when the release bar and the engagement element of FIG. 12 and FIG. 13 are used (without the lid);
- FIG. 13 is an exploded perspective view showing a modified example of the lock bar and the engagement element;
- FIG. 16 is a partially cutaway front view showing a state during a mold clamping operation when the modified example of FIG. 15 is used (a state corresponding to FIG. 6 );
- FIG. 17 is a partially cutaway front view showing a state during the mold clamping operation (a state corresponding to FIG. 7) following FIG. 16;
- FIG. 13 is an exploded perspective view showing another modified example of the lock bar and the engagement element.
- FIG. 19 is a front view showing a state during a mold clamping operation when the modified example of FIG.
- FIG. 18 is used (a state corresponding to FIG. 6 ).
- 19 is a front view showing a state during the mold clamping operation (a state corresponding to FIG. 7 ).
- FIG. 13 is an exploded perspective view showing yet another modified example of the lock bar and the engagement element.
- FIG. 22 is a front view showing a state during the mold clamping operation when the modified example of FIG. 21 is used (a state corresponding to FIG. 7 ).
- FIG. 1 is a cross-sectional plan view showing a conventional parting lock device in a mold open state.
- FIG. 24 is a cross-sectional plan view showing the mold clamping state of the parting lock device of FIG. 23;
- Fig. 1 shows a horizontal injection molding machine using a parting lock device 10 according to an embodiment.
- This injection molding machine is a three-plate type machine that includes a spool bush 2 to which molten resin is supplied from a nozzle 1 at the tip of an injection device (not shown), a spool plate 3 to which the spool bush 2 is attached, a stripper plate 4 into which the tip of the spool bush 2 enters, a fixed side mold 5 that moves in contact with and away from the stripper plate 4, a movable side mold 7 that forms a molding cavity 6 between the fixed side mold 5, a movable plate 8 that supports the movable side mold 7, and a cylinder 9 that moves the movable plate 8 horizontally together with the movable side mold 7.
- the fixed side mold 5 is provided with a gate 5a that serves as the entrance to the cavity 6, and a flow path 5b that guides the molten resin supplied through the spool bush 2 to the
- the parting lock device 10 of the embodiment is mounted on both sides of the injection molding machine (the front side shown in FIG. 1 and the rear side not shown).
- Each parting lock device 10 has a base holder 11 fixed to the fixed mold 5, a release bar 12 fixed to the stripper plate 4, and a lock bar 13 fixed to the movable mold 7.
- the parting lock device 10 has a base holder 11 divided into a holder body 11a and a cover 11b that is bolted to the holder body 11a, and the holder body 11a contains an engaging element 14 and a spring 15 that biases the engaging element 14 toward an unlocked position, which will be described later.
- the holder body 11a of the base holder 11 is provided with a release bar insertion hole 16 and a lock bar insertion hole 17 (hereinafter collectively referred to as "bar insertion holes 16, 17") that extend parallel to each other in the horizontal direction when fixed to the fixed mold 5.
- the entire release bar 12 can be freely inserted and removed into the release bar insertion hole 16, and the insertion tip of the lock bar 13 can be freely inserted and removed into the lock bar insertion hole 17.
- the holder body 11a is also provided with a guide hole 18 that guides movement of the engaging element 14 in a direction perpendicular to the extension direction of the bar insertion holes 16, 17 (the up and down direction when fixed to the fixed mold 5).
- the guide hole 18 includes a communication passage 18a that passes through the partition 19 between the release bar insertion hole 16 and the lock bar insertion hole 17, and a storage recess 18b that is formed on the inner surface of the side wall that faces the partition 19 across the lock bar insertion hole 17.
- the upper end of the guide hole 18 is connected to a spring storage hole 20 that stores the spring 15.
- the engaging element 14 has a base portion 14a formed in the shape of a narrow, thick plate, and a stopper portion 14b, a first engaging portion 14c, and a second engaging portion 14d, each of which is provided on one side of the base portion 14a.
- the base portion 14a of this engaging member 14 has a thickness dimension equal to the depth from the bottom of the bar insertion holes 16, 17 to the bottom of the guide hole 18, and is designed not to protrude into the bar insertion holes 16, 17.
- both end faces are formed into convex arc surfaces, and a flat spring receiving surface 14e is provided only on the portion of the upper end face that faces one end of the spring 15.
- a protrusion that fits into the communication passage 18a of the guide hole 18 is provided on the lower end side of one surface of the base portion 14a.
- the lower half of the protrusion is formed in a rectangular parallelepiped shape, and the upper half is formed in a semicircular shape when viewed from the front, with the lower end being a stopper portion 14b that protrudes from the communication passage 18a into the release bar insertion hole 16, and the upper end being a first engagement portion 14c that protrudes from the communication passage 18a into the lock bar insertion hole 17.
- the second engagement portion 14d is arch-shaped when viewed from the front, and is formed with a thickness that is approximately half the thickness of the insertion tip of the lock bar 13.
- the top surface of the release bar 12 at the insertion tip is cut out across the entire thickness direction to form a recess, and the surface of the recess facing the insertion tip serves as an abutment portion 12a that abuts against the stopper portion 14b of the engagement piece 14 protruding into the release bar insertion hole 16.
- the tip surface of the insertion tip is formed into a convex arc surface so that it can be smoothly inserted into the release bar insertion hole 16.
- the lock bar 13 is designed so that only the insertion tip, which has a small thickness dimension, can be inserted into and removed from the lock bar insertion hole 17.
- the insertion tip has a first cam portion 13a on the underside and a second cam portion 13b on the upper side.
- the first cam portion 13a is formed by cutting out the underside of the insertion tip in a concave arc shape over the entire thickness direction, and as described below, it selectively receives the first engagement portion 14c of the engagement member 14 and pushes it into the communication passage 18a of the guide hole 18 depending on the movement direction when the lock bar 13 is inserted and removed.
- the second cam portion 13b is formed by cutting out the back side of the upper surface of the insertion tip from the tip, and as described below, it pushes the second engagement portion 14d of the engagement member 14 protruding into the lock bar insertion hole 17 into the storage recess 18b of the guide hole 18.
- This parting lock device 10 has the above-mentioned configuration, and as shown in Figures 4 and 5, when the insertion tip of the lock bar 13 is not inserted into the lock bar insertion hole 17, the engagement element 14 is in an unlocked position with its stopper portion 14b protruding into the release bar insertion hole 16, its first engagement portion 14c retracted into the communication passage 18a of the guide hole 18, and its second engagement portion 14d protruding into the lock bar insertion hole 17. In this state, even if the insertion tip of the release bar 12 enters the release bar insertion hole 16, the abutment portion 12a formed on the insertion tip abuts against the stopper portion 14b of the engagement element 14, preventing insertion.
- the movable mold 7 is brought close to the fixed mold 5 until it is in close contact with it, the insertion tip of the lock bar 13 is inserted into the lock bar insertion hole 17 of the base holder 11, and then both molds 5, 7 are brought close together to the stripper plate 4 and the release bar 12 is inserted into the release bar insertion hole 16 of the base holder 11, making it impossible for both molds 5, 7 to be separated.
- the fixed mold 5 is brought into close contact with the stripper plate 4, and the stripper plate 4 is brought into close contact with the spool plate 3, resulting in the mold clamping state shown in Figure 1, and in this state molten resin is supplied from the nozzle 1 of the injection device to the spool bush 2 to perform the molding operation.
- the cylinder 9 moves the movable plate 8 and the movable mold 7 together in a direction away from the nozzle 1 of the injection device to perform the mold opening operation.
- the stripper plate 4 and the fixed mold 5 also move together with the movable mold 7 and the movable plate 8 due to the action of a pull pin (not shown), and the stripper plate 4 is separated from the spool plate 3.
- the stripper plate 4 moves away from the spool plate 3 to a certain extent, it is stopped by the action of the pull pin.
- the fixed mold 5 continues to move together with the movable mold 7 and the movable plate 8, because the parting lock device 10 prevents it from separating from the movable mold 7.
- the fixed mold 5 separates from the stripper plate 4, and the spool bush 2 and the resin runner portion R remaining in the flow path 5b and gate 5a of the fixed mold 5 are cut off and removed.
- the release bar 12 fixed to the stripper plate 4 comes out of the base holder 11 fixed to the fixed die 5. Then, when the release bar 12 comes out of the base holder 11 leaving only the insertion tip and no longer restricts the movement of the engaging member 14 to the unlocked position, and both dies 5, 7 can be opened, the fixed die 5 is stopped by the action of the pull pin.
- the movable mold 7 separates from the fixed mold 5, resulting in an open mold state, and the product P molded in the cavity 6 is removed.
- the insertion tip of the lock bar 13 fixed to the movable mold 7 comes out of the base holder 11, and in the process, the first cam portion 13a of the lock bar 13 presses the first engagement portion 14c of the engagement piece 14, causing the engagement piece 14 to return to the unlocked position due to its own weight and the elastic force of the spring 15 (returning to the state in FIG. 4 by moving in the opposite direction to the arrow in FIG. 6).
- this parting lock device 10 serves the purpose of preventing the separation of the two dies 5, 7 until the stripper plate 4 and the fixed die 5 are separated. Moreover, when clamping the dies, the lock bar 13 is inserted into the lock bar insertion hole 17 of the base holder 11, and the engagement element 14 built into the base holder 11 is moved to the locked position, allowing the release bar 12 to be inserted into the release bar insertion hole 16 of the base holder 11. The subsequent insertion of the release bar 12 restricts the movement of the engagement element 14 to the unlocked position, so that the simple structure can prevent the release bar 12 from being erroneously inserted prior to the lock bar 13, and the clamping operation can be performed stably.
- Figures 12 to 14 show modified examples of the release bar 12 and the engaging element 14.
- the stopper portion 14f of the engaging element 14 is formed so that its thickness dimension is smaller than the thickness dimension of the release bar 12, and the release bar 12 has a recess in part of its insertion tip in the thickness direction, including an abutment portion 12b that abuts against the stopper portion 14f protruding into the release bar insertion hole 16.
- the first cam portion 13a of the lock bar 13 and the first engaging portion 14c of the engaging element 14 are formed as triangular projections and recesses in front view that fit together.
- the protruding surfaces of the first engaging portion 14c and the second engaging portion 14d of the engaging element 14 that protrude into the lock bar insertion hole 17 are formed as a single flat inclined surface, and the first cam portion 13a and the second cam portion 13b of the lock bar 13 are formed with flat inclined surfaces that slide against the inclined surfaces of the first engaging portion 14c and the second engaging portion 14d.
- the first cam portion 13a of the lock bar 13 and the front side portion of the first engaging portion 14c of the engaging element 14 are formed in a triangular shape like the first modified example, based on the second modified example.
- a spring that biases the engaging element toward the unlocked position is built into the base holder, but since the engaging element is held in the unlocked position by its own weight when the lock bar is not inserted into the lock bar insertion hole, it is not necessary to incorporate a spring.
- the parting lock device of the present invention can be installed not only in horizontal injection molding machines as in the embodiment, but also in vertical injection molding machines. In that case, however, since the weight of the engaging member does not act in a direction to hold the engaging member in the unlocked position, it is preferable to incorporate a spring as in the embodiment.
- Reference Signs List 1 Nozzle (of injection device) 2 Spool bush 3 Spool plate 4 Stripper plate 5 Fixed mold 6 Cavity 7 Movable mold 8 Movable plate 9 Cylinder 10 Parting lock device 11 Base holder 11a Holder body 12 Release bar 12a, 12b Abutment portion 13 Lock bar 13a First cam portion 13b Second cam portion 14 Engagement piece 14b, 14f Stopper portion 14c First engagement portion 14d Second engagement portion 15 Spring 16 Release bar insertion hole 17 Lock bar insertion hole 18 Guide hole 18a Communication passage 18b Storage recess 19 Partition wall P Product R Runner portion
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Abstract
Description
前記ロックバーがロックバー挿入孔に挿入されていない状態では、前記係合子は、前記ストッパ部がリリースバー挿入孔に突出してリリースバーの挿入を阻止し、前記第1係合部がガイド穴の連通路に没入し、前記第2係合部がロックバー挿入孔に突出したアンロック位置にあり、前記ロックバーがロックバー挿入孔に挿入されるときに、前記第2カム部で係合子の第2係合部を押すことにより、前記係合子は、前記第2係合部がガイド穴の収納凹部に没入し、前記第1係合部がロックバー挿入孔に突出してロックバーの第1カム部に入り込み、前記ストッパ部がガイド穴の連通路に没入するロック位置に移動し、前記係合子がロック位置にあるときに、前記リリースバー挿入孔に挿入されたリリースバーが係合子のアンロック位置への移動を規制することにより、前記ロックバーのロックバー挿入孔からの抜け出しが阻止され、前記係合子がロック位置にあり、前記リリースバー挿入孔にリリースバーが挿入されていない状態で、前記ロックバーがロックバー挿入孔から抜き出されるときに、前記第1カム部が係合子の第1係合部を押すことにより、前記係合子がアンロック位置に戻るようになっている構成を採用した。
2 スプールブッシュ
3 スプール板
4 ストリッパプレート
5 固定側金型
6 キャビティ
7 可動側金型
8 可動プレート
9 シリンダ
10 パーティングロック装置
11 ベースホルダ
11a ホルダ本体
12 リリースバー
12a、12b 当接部
13 ロックバー
13a 第1カム部
13b 第2カム部
14 係合子
14b、14f ストッパ部
14c 第1係合部
14d 第2係合部
15 ばね
16 リリースバー挿入孔
17 ロックバー挿入孔
18 ガイド穴
18a 連通路
18b 収納凹部
19 隔壁
P 製品
R ランナー部
Claims (3)
- 互いに平行に延びるリリースバー挿入孔とロックバー挿入孔を有するベースホルダと、前記リリースバー挿入孔に対して挿脱自在に配置されるリリースバーと、前記ロックバー挿入孔に対して挿脱自在に配置されるロックバーと、前記ベースホルダに内蔵される係合子とを備え、
前記ベースホルダは、前記係合子の前記リリースバー挿入孔およびロックバー挿入孔の延伸方向と直交する方向での移動を案内するガイド穴が設けられ、
前記ガイド穴は、前記リリースバー挿入孔とロックバー挿入孔の間の隔壁を貫通する連通路と、前記ロックバー挿入孔を挟んで前記隔壁と対向する側壁の内側面に形成される収納凹部とを含むものであり、
前記係合子は、前記ガイド穴の連通路からリリースバー挿入孔に出没するストッパ部と、前記ガイド穴の連通路からロックバー挿入孔に出没する第1係合部と、前記ガイド穴の収納凹部からロックバー挿入孔に出没する第2係合部とを有し、
前記リリースバーは、前記リリースバー挿入孔への挿入先端部に、前記リリースバー挿入孔に突出したストッパ部に突き当たる当接部が設けられ、
前記ロックバーは、挿脱の際の移動方向に応じて前記係合子の第1係合部の受け入れとガイド穴の連通路への押し込みを選択的に行う凹状の第1カム部と、前記ロックバー挿入孔に突出した係合子の第2係合部をガイド穴の収納凹部に押し込む第2カム部とを有し、
前記ロックバーがロックバー挿入孔に挿入されていない状態では、前記係合子は、前記ストッパ部がリリースバー挿入孔に突出してリリースバーの挿入を阻止し、前記第1係合部がガイド穴の連通路に没入し、前記第2係合部がロックバー挿入孔に突出したアンロック位置にあり、
前記ロックバーがロックバー挿入孔に挿入されるときに、前記第2カム部で係合子の第2係合部を押すことにより、前記係合子は、前記第2係合部がガイド穴の収納凹部に没入し、前記第1係合部がロックバー挿入孔に突出してロックバーの第1カム部に入り込み、前記ストッパ部がガイド穴の連通路に没入するロック位置に移動し、
前記係合子がロック位置にあるときに、前記リリースバー挿入孔に挿入されたリリースバーが係合子のアンロック位置への移動を規制することにより、前記ロックバーのロックバー挿入孔からの抜け出しが阻止され、
前記係合子がロック位置にあり、前記リリースバー挿入孔にリリースバーが挿入されていない状態で、前記ロックバーがロックバー挿入孔から抜き出されるときに、前記第1カム部が係合子の第1係合部を押すことにより、前記係合子がアンロック位置に戻るようになっているパーティングロック装置。 - 前記係合子を前記アンロック位置に向けて付勢するばねが前記ベースホルダに内蔵されていることを特徴とする請求項1に記載のパーティングロック装置。
- 前記係合子のストッパ部は、その厚み寸法が前記リリースバーの厚み寸法よりも小さく形成されており、
前記リリースバーは、前記挿入先端部の厚み方向の一部に、前記リリースバー挿入孔に突出したストッパ部に突き当たる当接部を含む凹部が設けられるとともに、前記挿入先端部の凹部を除く部位の先端面の少なくとも両側が凸円弧面に形成されていることを特徴とする請求項1または2に記載のパーティングロック装置。
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JP2024517473A JP7503351B1 (ja) | 2022-10-21 | 2022-10-21 | パーティングロック装置 |
PCT/JP2022/039277 WO2024084682A1 (ja) | 2022-10-21 | 2022-10-21 | パーティングロック装置 |
CN202280034350.2A CN118234606A (zh) | 2022-10-21 | 2022-10-21 | 分型锁定装置 |
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CN119259950A (zh) * | 2024-12-12 | 2025-01-07 | 宁波旭升集团股份有限公司 | 一种用于铸造的三板模 |
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JP2000153539A (ja) * | 1998-11-19 | 2000-06-06 | Fujitsu Takamisawa Component Ltd | 射出成形金型 |
JP2003117948A (ja) * | 2001-10-12 | 2003-04-23 | Seiko Epson Corp | 射出成形機及び成形方法 |
WO2020250456A1 (ja) * | 2019-06-14 | 2020-12-17 | 有限会社アイユーキ技研 | パーティングロック装置とそれを用いた射出成形金型アセンブリ |
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JP6746828B1 (ja) | 2019-06-14 | 2020-08-26 | 有限会社アイユーキ技研 | パーティングロック装置とそれを用いた射出成形金型アセンブリ |
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JP2000153539A (ja) * | 1998-11-19 | 2000-06-06 | Fujitsu Takamisawa Component Ltd | 射出成形金型 |
JP2003117948A (ja) * | 2001-10-12 | 2003-04-23 | Seiko Epson Corp | 射出成形機及び成形方法 |
WO2020250456A1 (ja) * | 2019-06-14 | 2020-12-17 | 有限会社アイユーキ技研 | パーティングロック装置とそれを用いた射出成形金型アセンブリ |
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CN119259950A (zh) * | 2024-12-12 | 2025-01-07 | 宁波旭升集团股份有限公司 | 一种用于铸造的三板模 |
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