CN111452317B

CN111452317B - Mold opening sequence control mechanism and mold system

Info

Publication number: CN111452317B
Application number: CN202010278660.1A
Authority: CN
Inventors: 匡仁煌; 张文彪; 张�荣; 陈翔养; 陈天; 胡上华; 朱帝宏; 陈珺
Original assignee: Guangdong Bozhilin Robot Co Ltd
Current assignee: Guangdong Bozhilin Robot Co Ltd
Priority date: 2020-04-10
Filing date: 2020-04-10
Publication date: 2021-10-08
Anticipated expiration: 2040-04-10
Also published as: CN111452317A

Abstract

The invention relates to a mold opening sequence control mechanism and a mold system, comprising: the first locking rod is used for being installed on the movable template and provided with a first clamping part; the locking assembly is used for being installed on the fixed template and comprises an elastic assembly and a lock body which is connected with the elastic assembly and can rotate, and the lock body is provided with a second clamping part which can be clamped with or separated from the first clamping part; the second locking rod is used for being installed on the fixing plate and provided with a third clamping part, and the second clamping part can be pushed and rotated by the jacking of the third clamping part to be separated from being clamped with the first clamping part; the fixed template is arranged between the fixed plate and the movable template. The die opening sequence control mechanism is arranged on the die system, so that the core-pulling mechanism can complete twice die opening of a product (such as a plastic product) on one side of the fixed die plate, and the die opening sequence control mechanism is simple in structure, convenient and fast to operate and high in stability.

Description

Mold opening sequence control mechanism and mold system

Technical Field

The invention relates to the technical field of molds, in particular to a mold opening sequence control mechanism and a mold system.

Background

At present, because the manufacturing process is simple, the forming precision is high, and more products are processed by adopting the integrated injection molding of a mould. When the mold needs to open the mold of the runner or a side core-pulling structure exists, the mold opening sequence of each mold plate needs to be controlled in sequence, for example, for a three-plate fine nozzle mold, in order to separate the runner from the product, each mold plate needs to be separated in sequence during mold opening by means of a sequential mold opening mechanism. However, although the existing sequential mold opening mechanism can be easily integrated on a three-plate fine nozzle mold, the structure is usually complicated, the use and operation are inconvenient, and the stability is poor.

Disclosure of Invention

Therefore, it is necessary to provide a mold opening sequence control mechanism and a mold system, which aim to solve the problems of inconvenient sequential mold opening operation and poor stability in the prior art.

In one aspect, the present application provides a mold opening sequence control mechanism, which includes:

the first locking rod is used for being installed on the movable template and provided with a first clamping part;

the locking assembly is used for being installed on the fixed template and comprises an elastic assembly and a lock body which is connected with the elastic assembly and can rotate, and the lock body is provided with a second clamping part which can be clamped with or separated from the first clamping part; and

the second locking rod is used for being installed on the fixing plate and provided with a third clamping part, and the second clamping part can be pushed down by the top of the third clamping part to rotate so as to be separated from being clamped with the first clamping part; the fixed template is arranged between the fixed plate and the movable template.

The mold opening sequence control mechanism is applied to a mold system with a side core-pulling structure, so that mold opening of each template in the mold system can be realized according to a preset sequence, and the mold opening operability and the mold opening quality of a product are ensured. Specifically, the mold system at least comprises a fixed plate, a fixed mold plate and a movable mold plate, wherein the fixed plate, the fixed mold plate and the movable mold plate are sequentially arranged from top to bottom, and the fixed plate, the fixed mold plate and the movable mold plate are mutually covered when the mold system is in a locking state, and at the moment, under the action of the elastic force of an elastic component, a first clamping part of a first locking rod is clamped with a second clamping part of a lock body; when the product is opened, the three parts can be opened sequentially in two stages. Specifically, when the mold opening operation is carried out, under the pulling of the injection molding machine, the first clamping part and the second clamping part are clamped, so that the movable mold plate and the fixed mold plate are mutually locked and fixed and can move away from the fixed plate together in the mold opening direction, and the first mold opening separation is completed; after the injection molding machine moves for the preset distance, the third clamping part of the second locking rod moves to be in contact with the second clamping part and abuts against the lock body to rotate, so that the second clamping part is separated from the first clamping part, the first locking rod is separated from the constraint of the lock body, when the injection molding machine further outputs pulling force, the movable template can move towards the mold opening direction to be separated from the fixed template, and the second mold opening separation is completed. In conclusion, after the die opening sequence control mechanism is arranged on the die system, the core-pulling mechanism can complete twice die opening of a product (such as a plastic product) on one side of the fixed die plate, and the die opening sequence control mechanism is simple in structure composition, convenient to operate, reliable and high in stability.

The technical solution of the present application is further described below:

in one embodiment, the first locking rod comprises a first sliding rod, the first clamping portion is formed at an end of the first sliding rod, the first clamping portion is formed as a groove, the second clamping portion is formed as a clamping body, and the clamping body can be clamped with the groove.

In one embodiment, the first locking bar further comprises a first mounting block connected to the first sliding bar, and the first mounting block is connected to the movable platen.

In one embodiment, at least one groove wall of the groove is a bevel.

In one embodiment, the second locking rod includes a second sliding rod and a second mounting block connected to the second sliding rod, the second sliding rod is stacked with the first sliding rod, the third locking portion is formed at an end of the second sliding rod, the third locking portion is formed as a protrusion, and the second mounting block is connected to the fixing plate.

In one embodiment, the card body is provided with a first avoidance inclined surface and/or the protrusion is provided with a second avoidance inclined surface.

In one embodiment, the locking assembly further includes a fixing block, the fixing block defines a sliding slot, and the first sliding rod and the second sliding rod are disposed in the sliding slot.

In one embodiment, the fixed block is further provided with a guide groove communicated with the sliding groove, and the lock body is rotatably arranged in the guide groove.

In one embodiment, the fixed block further defines a mounting hole communicating with the guide groove, the elastic component is inserted into the mounting hole, and the elastic component includes a screw, an elastic pressing member connected to the screw, and a thimble connected to the elastic pressing member, the lock body defines a receptacle, and the thimble is inserted into the receptacle.

In one embodiment, the lock body is provided with a first positioning surface, the second locking rod is provided with a second positioning surface, and the first positioning surface is attached to the second positioning surface.

In another aspect, the present application further provides a mold system including the mold opening sequence control mechanism as described above.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this application, illustrate embodiments of the invention and, together with the description, serve to explain the invention and not to limit the invention.

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.

Fig. 1 is an exploded view of a mold opening sequence control mechanism according to an embodiment of the present invention;

FIG. 2 is a schematic structural diagram of a locking assembly according to an embodiment of the invention;

fig. 3 is a schematic structural view of the mold opening sequence control mechanism installed in the mold system according to an embodiment of the present invention (the mold system is in a locked state);

FIG. 4 is a schematic structural view of a mold opening sequence control mechanism of FIG. 3;

FIG. 5 is a schematic view of the first mold opening operation shown in FIG. 3;

fig. 6 is a schematic structural view of fig. 5 after the second mold opening is completed.

Description of reference numerals:

10. a first lock link rod; 11. a first engaging portion; 12. a first slide bar; 13. a first mounting block; 20. a locking assembly; 21. an elastic component; 211. a screw; 212. an elastic pressing member; 213. a thimble; 22. a lock body; 221. a second card portion; 222. a jack; 223. a first positioning surface; 23. a fixed block; 231. a chute; 232. a guide groove; 233. mounting holes; 30. a second locking bar; 31. a third card part; 32. a second slide bar; 33. a second mounting block; 34. a second positioning surface; 40. moving the template; 50. fixing a template; 60. and (7) fixing the plate.

Detailed Description

In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in detail below. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. This invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein.

In the description of the present invention, it is to be understood that the terms "central," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the invention and to simplify the description, and are not intended to indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and are not to be considered limiting of the invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

In the present invention, unless otherwise expressly stated or limited, the first feature "on" or "under" the second feature may be directly contacting the first and second features or indirectly contacting the first and second features through an intermediate. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.

It will be understood that when an element is referred to as being "secured to" or "disposed on" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and the like as used herein are for illustrative purposes only and do not denote a unique embodiment.

The embodiment of the application provides a mold system, which is used for realizing the integral injection molding of a product. It can be understood that during processing and manufacturing, the fluid raw materials are injected into the mold, and after solidification and molding, the mold is separated, and the product is taken out. The types of products that can be manufactured can be, but are not limited to, plastic, metal, glass, and the like.

Generally, when the structure of some products is complex, for example, runner opening or side core pulling is required, which puts specific requirements on the opening sequence of the mold. At this time, the mold opening sequence control mechanism needs to be designed and equipped on the mold system. It should be noted that the mold system includes a mold main body and an injection molding machine (the mold system also includes other devices, but does not participate in technical improvement in this application, and therefore, detailed description is not given), and the mold main body further includes at least a fixed plate 60, a fixed mold plate 50, and a movable mold plate 40. The injection molding machine is arranged on one side of the movable mold plate 40, and can output reciprocating linear power for driving the fixed plate 60, the fixed mold plate 50 and the movable mold plate 40 to cover or separate from each other.

Referring to fig. 1 to 3, there are shown schematic structural diagrams illustrating a mold opening sequence control mechanism according to an embodiment of the present application, the mold opening sequence control mechanism includes: a first locking bar 10, a locking assembly 20 and a second locking bar 30. The first locking rod 10 is used for being installed on the movable template 40, and the first locking rod is provided with a first clamping part 11; the locking assembly 20 is used for being mounted on the fixed die plate 50, the locking assembly 20 comprises an elastic assembly 21 and a lock body 22 which is connected with the elastic assembly 21 and can rotate, and the lock body 22 can be clamped with or separated from the second clamping part 221 of the first clamping part 11; the second locking rod 30 is used for being mounted on the fixing plate 60, and the second locking rod 30 is provided with a third clamping portion 31, and the second clamping portion 221 can rotate under the pushing of the third clamping portion 31 to be separated from being clamped with the first clamping portion 11; the fixed mold plate 50 is disposed between the fixed mold plate 60 and the movable mold plate 40.

Specifically, the mold opening sequence control mechanism is installed at one side of the mold system, that is, the first locking rod 10, the locking assembly 20 and the second locking rod 30 are all installed at the same side of the mold system. The second locking bar 30 is installed at the side of the fixed plate 60 by a bolt assembly, and the locking assembly 20 is installed at the side of the fixed die plate 50 by a bolt assembly, like the first locking bar 10 is installed at the side of the movable die plate 40 by a bolt assembly. The bolt assembly is adopted for installation, the structure is simple, the assembly and disassembly are convenient, and the installation strength is high. Of course, in other embodiments, the first lock rod 10, the lock assembly 20, and the second lock rod 30 can be fixed to the mold system by other mounting structures in the prior art, such as snap-fit connection, welding, riveting, magnetic attraction, etc.

With reference to fig. 4 to fig. 6, in summary, the following advantages are achieved by the technical solution of the present embodiment: the mold opening sequence control mechanism is applied to a mold system with a side core-pulling structure, so that mold opening of each template in the mold system can be realized according to a preset sequence, and the mold opening operability and the mold opening quality of a product are ensured. Specifically, the mold system at least comprises three parts, namely a fixed plate 60, a fixed mold plate 50 and a movable mold plate 40, wherein the fixed plate 60, the fixed mold plate 50 and the movable mold plate 40 are sequentially arranged from top to bottom, and when the mold system is in a locking state, the three parts are mutually covered, and at the moment, under the action of the elastic force of the elastic component 21, the first clamping part 11 of the first lock rod 10 is clamped with the second clamping part 221 of the lock body 22; when the product is opened, the three parts can be opened sequentially in two stages. Specifically, when the mold opening operation is performed, under the pulling of the injection molding machine, the first clamping portion 11 and the second clamping portion are clamped, so that the movable mold plate 40 and the fixed mold plate 50 are locked and fixed to each other and can move away from the fixed plate 60 together in the mold opening direction, thereby completing the first mold opening separation; after the injection molding machine moves for the preset distance, the third clamping portion 31 of the second locking rod 30 moves to contact with the second clamping portion 221 and pushes against the lock body 22 to rotate, so that the second clamping portion 221 is separated from the first clamping portion 11, and the first locking rod 10 is separated from the constraint of the lock body 22, so that when the injection molding machine further outputs pulling force, the movable mold plate 40 can move towards the mold opening direction and is separated from the fixed mold plate 50, thereby completing the second mold opening separation. In summary, after the mold opening sequence control mechanism is equipped on the mold system, the core-pulling mechanism can complete twice mold opening of the product (such as a plastic product) on one side of the fixed mold plate 50, and the mold opening sequence control mechanism has the advantages of simple structure composition, convenient operation, high reliability and stability.

With continued reference to fig. 1 and 2, in some embodiments, locking assembly 20 further includes a securing block 23, and securing block 23 is a carrier for lock body 22, so that lock body 22 can be integrally secured to stationary platen 50. The fixed block 23 is a rectangular cubic block, the fixed block 23 is provided with a sliding groove 231, the sliding groove 231 is formed on one side surface of the fixed block 23 with the largest area, and the sliding groove 231 is a through groove structure to fit and mount the first sliding rod 12 and the second sliding rod 32. The first locking rod 10 includes a first sliding rod 12, and a first mounting block 13 connected to the first sliding rod 12, wherein the first mounting block 13 is connected to the movable mold plate 40. Specifically, the first mounting block 13 is provided with a through hole, a bolt is inserted into the through hole, and the bolt can be screwed with a screw hole preset on the movable template 40, so that the whole first locking rod 10 is assembled and fixed with the movable template 40 by means of the first mounting block 13.

The second locking rod 30 includes a second sliding rod 32 and a second mounting block 33 connected to the second sliding rod 32, and the first sliding rod 12 and the second sliding rod 32 are disposed in the sliding slot 231. Similarly, the second mounting block 33 has a through hole, and a bolt is inserted into the through hole and can be screwed with a screw hole preset in the fixing plate 60, so that the whole second locking rod 30 is assembled and fixed with the fixing plate 60 by means of the second fixing block 23. It should be noted that the number of the through holes and the bolts may be more than one, and may be specifically set according to actual needs. It should be noted that, in other embodiments, other mounting structures in the prior art, such as a snap connection, a magnetic connection, a welding connection, a riveting connection, etc., may be used between the first mounting block 13 and the movable mold plate 40, and between the second mounting block 33 and the fixed plate 60 to achieve the assembling connection.

The first sliding rod 12 and the second sliding rod 32 are matched with the sliding groove 231 in shape and size, and the sum of the thickness of the first sliding rod 12 and the thickness of the second sliding rod 32 is matched with the depth of the sliding groove 231, so that the first sliding rod 12 and the second sliding rod 32 are matched and installed in the sliding groove 231 after being overlapped, and the structure is compact and stable.

It should be noted that the thickness of the first mounting block 13 is greater than the thickness of the first sliding rod 12, and the thickness of the second mounting block 33 is also greater than the thickness of the second sliding rod 32, so that the first sliding rod 12 and the second sliding rod 32 can be stacked in the sliding slot 231.

Further, in some embodiments, the first locking portion 11 is formed at an end of the first sliding rod 12, the first locking portion 11 is formed as a groove, and the second locking portion 221 is formed as a locking body, which can be locked with the groove. By means of the elastic force of the elastic component 21, the pushing body can be reliably clamped in the groove, so that the lock body 22 can restrain the first locking rod 10 to lock and fix the fixed template 50 and the movable template 40, and the movable template 40 and the fixed template 50 are away from the fixed plate 60 together when the injection molding machine is pulled, thereby completing the first mold opening.

Further, in some embodiments, at least one side wall of the groove is beveled. The groove wall of the groove at the side far from the second locking rod 30 is preferably an inclined surface, and the inclined direction is far from the groove cavity outwards. The groove can form a flaring-shaped structure, so that when the mold system is reset, the first locking rod 10 moves close to the lock body 22, and the second clamping part 221 can be easily clamped with the first clamping part 11 under the guiding and avoiding action of the inclined surface.

As described in the above embodiment, the second slide bar 32 is stacked on the first slide bar 12, the third locking portion 31 is formed at an end of the second slide bar 32, the third locking portion 31 is formed as a protrusion, and the second mounting block 33 is connected to the fixing plate 60. After the first mold opening is completed, the fixing plate 60 is further pulled by the injection molding machine, the fixing plate 60 drives the second locking rod 30 to move, at this time, the third clamping portion 31 can push the lock body 22 to rotate, so that the second clamping portion 221 is separated from the first clamping portion 11, and then under the action of gravity, the movable mold plate 40 can be separated from the fixed mold plate 50, thereby completing the second mold opening.

Preferably, in some embodiments, the card body is provided with a first avoidance slope and/or the protrusion is provided with a second avoidance slope. The protruding inclined plane of dodging also is equipped with the second when the card body of preferred is equipped with first dodge inclined plane, and the slope and the incline direction adaptation on inclined plane are dodged to first dodge inclined plane and second, can guarantee so that the protruding body moves the card body upwards so that the protruding card body that also slips more easily when lock body 22 rotates to dodge and dodge, prevents to take place to block to interfere.

With reference to fig. 1 and fig. 2, on the basis of any of the above embodiments, the fixing block 23 is further provided with a guiding slot 232 communicating with the sliding slot 231, and the lock body 22 is rotatably disposed in the guiding slot 232. As shown in the drawings, the guiding slot 232 is a circular slot, and the lock body 22 is a cylinder, so that the guiding slot 232 can guide and limit the rotation of the lock body 22, and ensure that the lock body 22 acts more accurately and reliably. When the lock body 22 is pushed by the elastic force of the elastic component 21, it has a momentum of rotating in the counterclockwise direction, so that the second locking portion 221 can lock the first locking portion 11, so as to fix the movable mold plate 40 and the fixed mold plate 50, which is convenient for the fixed plate 60 to open the mold for the first time. When the second locking rod 30 further moves and the third engaging portion 31 abuts against the second engaging portion 221, the lock body 22 rotates clockwise under the guiding of the guiding slot 232, and at this time, the second engaging portion 221 is separated from the first engaging portion 11, so that the movable mold plate 40 can be separated from the fixed mold plate 50, thereby completing the second mold opening.

Specifically, in some embodiments, the fixing block 23 further defines a mounting hole 233 communicating with the guide slot 232, the elastic component 21 is inserted into the mounting hole 233, the elastic component 21 includes a screw 211, an elastic pressing component 212 connected to the screw 211, and a thimble 213 connected to the elastic pressing component 212, the lock body 22 defines a receptacle 222, and the thimble 213 is inserted into the receptacle 222. The screw 211 can fix the elastic pressing element 212 in the mounting hole 233, the elastic force of the elastic pressing element 212 can be transmitted to the thimble 213, and the thimble 213 further pushes the lock body 22 to lock the first lock rod 10. To enhance the pushing force applied to lock body 22, pin 213 is preferably offset from the center of lock body 22, i.e., pin 213 is located above the center of lock body 22. At this time, the thimble 213 is inserted into the predetermined insertion hole 222 of the lock body 22, so that the thimble 213 can be prevented from slipping off the lock body 22 due to the offset arrangement, thereby preventing the locking failure.

In addition, in some embodiments, the lock body 22 is provided with a first positioning surface 223, the second locking rod 30 is provided with a second positioning surface 34, and the first positioning surface 223 is attached to the second positioning surface 34. When the movable mold plate 40 is locked and fixed with the fixed mold plate 50, the first positioning surface 223 is abutted with the second positioning surface 34, the generated abutting force is balanced with the pushing force applied by the elastic component 21, the lock body 22 can be prevented from rotating excessively and can be reliably clamped with the first locking rod 10, and the normal completion of the subsequent first mold opening is ensured.

The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.

The above-mentioned embodiments only express several embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.

Claims

1. The mold opening sequence control mechanism is characterized by comprising:

the second locking rod is used for being installed on the fixing plate and provided with a third clamping part, and the second clamping part can be pushed down by the top of the third clamping part to rotate so as to be separated from being clamped with the first clamping part; the fixed template is arranged between the fixed plate and the movable template; the first locking rod and the second locking rod are arranged in a stacked mode and are positioned on the same side of the lock body, and the first clamping portion and the third clamping portion are arranged opposite to the second clamping portion; in the first die sinking and separating process, the elastic component pushes the lock body to enable the second clamping part to be clamped with the first clamping part; in the second die sinking separation process, the second locking rod moves to enable the third clamping part to contact the second clamping part and push the lock body to rotate, and the first clamping part is separated from the second clamping part.

2. The mold opening sequence control mechanism of claim 1, wherein the first locking rod comprises a first sliding rod, the first locking portion is formed at an end of the first sliding rod, the first locking portion is formed as a groove, the second locking portion is formed as a locking body, and the locking body is lockable with the groove.

3. The mold opening sequence control mechanism of claim 2, wherein the first lock rod further comprises a first mounting block coupled to the first slide rod, the first mounting block coupled to the movable platen.

4. The mold opening sequence control mechanism of claim 2, wherein at least one groove wall of the groove is a bevel.

5. The mold opening sequence control mechanism of claim 2, wherein the second locking bar includes a second slide bar and a second mounting block connected to the second slide bar, the second slide bar is stacked with the first slide bar, and the third locking portion is formed at an end of the second slide bar, the third locking portion is formed as a protrusion, and the second mounting block is connected to the fixing plate.

6. A mold opening sequence control mechanism as claimed in claim 5, wherein the card body is provided with a first avoidance slope and/or the protrusion is provided with a second avoidance slope.

7. The mold opening sequence control mechanism of claim 5, wherein the locking assembly further comprises a fixed block, the fixed block defines a slide slot, and the first slide rod and the second slide rod are disposed within the slide slot.

8. The mold opening sequence control mechanism of claim 7, wherein the fixed block is further provided with a guide slot communicated with the slide slot, and the lock body is rotatably disposed in the guide slot.

9. The mold opening sequence control mechanism of claim 8, wherein the fixed block further defines a mounting hole communicating with the guide slot, the elastic element is inserted into the mounting hole, the elastic element includes a screw, an elastic pressing member connected to the screw, and a pin connected to the elastic pressing member, the lock body defines a receptacle, and the pin is inserted into the receptacle.

10. A mold system comprising the opening sequence control mechanism according to any one of claims 1 to 9.