CN111452316A

CN111452316A - Mold opening sequence control mechanism and mold system

Info

Publication number: CN111452316A
Application number: CN202010278655.0A
Authority: CN
Inventors: 匡仁煌; 张文彪; 张�荣; 陈天; 陈翔养; 胡上华; 陈珺; 朱帝宏
Original assignee: Guangdong Bozhilin Intelligent Manufacturing Co ltd
Current assignee: Guangdong Bozhilin Robot Co Ltd
Priority date: 2020-04-10
Filing date: 2020-04-10
Publication date: 2020-07-28
Anticipated expiration: 2040-04-10
Also published as: CN111452316B

Abstract

The invention relates to a mold opening sequence control mechanism and a mold system, comprising: the locking rod is used for being installed on the movable template and is provided with a first clamping position; the locking assembly is used for being installed on the fixed template and comprises an elastic pressing piece and a lock body which is connected with the elastic pressing piece and can slide in a telescopic mode, and the lock body can be locked with or separated from the first clamping position; the lock body can slide out of the first clamping position under the pushing action of the elastic pressing piece and is clamped with the second clamping position; the fixed template is arranged between the fixed plate and the movable template. In conclusion, 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 is simple in structure composition, convenient to operate, reliable 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 locking rod is used for being installed on the movable template and is provided with a first clamping position;

the locking assembly is used for being installed on the fixed template and comprises an elastic pressing piece and a lock body which is connected with the elastic pressing piece and can slide in a telescopic mode, and the lock body can be locked with or separated from the first clamping position; and

the lock body can slide out of the first clamping position under the pushing action of the elastic pressing piece and is clamped with the second clamping position; 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 three parts, namely 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 when the mold system is in a locking state, the fixed plate, the fixed mold plate and the movable mold plate are mutually covered, at the moment, a lock body is locked with a first clamping position on a locking rod, and an elastic pressing piece is in a compression state; 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 movable mold plate and the fixed mold plate are fixed to each other and can move away from the fixed plate together in the mold opening direction due to the locking connection of the lock body and the first clamping position, and the locking rod synchronously slides relative to the fixed seat at the moment, so that the first mold opening separation is completed; after 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 thus 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 locking assembly further includes a lock seat, the lock seat is disposed on the fixed mold plate, the lock seat is provided with a limiting guide groove, and the elastic pressing member is disposed in the limiting guide groove.

In one embodiment, the fixing seat comprises a cover plate, and the cover plate is arranged outside the locking assembly and is abutted with the side surface of the elastic pressing piece.

In one of them embodiment, the fixing base still includes the mounting panel, the apron with the mounting panel passes through bolt assembly lock joint on the fixed plate, the second screens is formed on the apron, and when the fixed plate, fixed die plate and movable die plate are in the lock state, first screens is close to the fixed plate setting, the second screens is kept away from the fixed plate setting.

In one embodiment, the mounting plate is provided with a positioning convex body, the cover plate is provided with a positioning groove, the positioning convex body is inserted into the positioning groove, and the side wall of the positioning convex body is abutted against the groove wall of the positioning groove.

In one embodiment, the lock seat is further provided with two limiting convex bodies arranged at intervals, a limiting sliding groove is formed between the two limiting convex bodies, and the lock body is slidably arranged in the limiting sliding groove.

In one embodiment, the lock body includes a support plate, a positioning column disposed on the support plate, and an insertion block disposed on the positioning column, and the elastic pressing member is sleeved with the positioning column.

In one embodiment, a first arc surface is arranged at one end, facing the first clamping position, of the insertion block, and a second arc surface is arranged at one end, facing the second clamping position, of the insertion block; when the inserting block is inserted into the second clamping position, the inserting block is completely separated from the first clamping position.

In one embodiment, the lock seat is provided with a first positioning surface, the lock 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 a schematic view of an assembly structure of a mold opening sequence control mechanism and a mold system according to an embodiment of the present invention;

FIG. 2 is a schematic diagram of the right side view of the structure of FIG. 1;

FIG. 3 is an exploded view of the locking assembly, the locking rod and the fixing base according to an embodiment of the present invention;

FIG. 4 is a structural diagram illustrating a state in which the mold opening system shown in FIG. 1 completes the first mold opening;

FIG. 5 is a structural diagram illustrating a state in which the mold opening system shown in FIG. 4 completes the second mold opening;

fig. 6 is a right-side view of the structure of fig. 5.

Description of reference numerals:

10. a locking rod; 11. a first clamping position; 20. moving the template; 30. a locking assembly; 31. an elastic pressing member; 32. a lock body; 321. a carrier plate; 322. a positioning column; 323. inserting a block; 324. a first arc surface; 325. a second arc surface; 33. a lock seat; 331. a limiting guide groove; 332. a limit convex body; 40. fixing a template; 50. a fixed seat; 51. a second card position; 52. a cover plate; 521. a positioning groove; 53. mounting a plate; 531. positioning the convex body; 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, which are not modified in this application and therefore not described in detail), and the mold main body further includes at least a fixed plate 60, a fixed mold plate 40 and a movable mold plate 20. The injection molding machine is arranged on one side of the movable mold plate 20, and can output reciprocating linear power for driving the fixed plate 60, the fixed mold plate 40 and the movable mold plate 20 to cover or separate from each other.

Referring to fig. 1 to 3, which are schematic structural diagrams illustrating a mold opening sequence control mechanism according to an embodiment of the present application installed on a mold system, the mold opening sequence control mechanism includes: locking rod 10, locking assembly 30 and fixing seat 50. The locking rod 10 is used for being installed on the movable formwork 20, and the locking rod 10 is provided with a first clamping position 11; the locking assembly 30 is used for being installed on the fixed die plate 40, and the locking assembly 30 comprises an elastic pressing part 31 and a lock body 32 which is connected with the elastic pressing part 31 and can slide telescopically, and the lock body 32 can be locked with or separated from the first clamping position 11; the fixing seat 50 is used for being mounted on the fixing plate 60, and the fixing seat 50 is provided with a second detent 51, and the lock body 32 can slide out of the first detent 11 under the pushing of the elastic pressing piece 31 and be clamped with the second detent 51; wherein the fixed die plate 40 is disposed between the fixed plate 60 and the movable die plate 20.

Specifically, the mold opening sequence control mechanism is installed at one side of the mold system, that is, the locking rod 10, the locking assembly 30 and the fixing seat 50 are all installed at the same side of the mold system. The fixing seat 50 is fixed on the side of the fixing plate 60 by a bolt assembly, the locking assembly 30 is fixed on the side of the fixed die plate 40 by a bolt assembly, and similarly, the locking rod 10 is fixed on the side of the movable die plate 20 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 locking bar 10, the locking assembly 30 and the fixing seat 50 can be fixed to the mold system by other mounting structures in the prior art, such as snap connection, welding, riveting, magnetic attraction connection, etc.

Referring to fig. 2 and 3, the locking rod 10 is a rectangular rod, the lower end of the locking rod is screwed to the movable form 20, the upper end of the locking rod is formed with a step structure, and the sidewall of the step structure is provided with a first locking position 11. Specifically, the first blocking position 11 is set to be a notch shape, and the opening direction of the notch is parallel to the side surface of the mold system; preferably, the number of the first locking portions 11 is two, and the first locking portions are symmetrically disposed on two opposite sides of the sidewall of the step structure.

The elastic pressing member 31 can be selected as a spring, and is placed on the movable die plate 20 in a lying posture, and the stretching direction is parallel to the opening direction of the first blocking position 11. Therefore, the lock body 32 can slide linearly and reciprocally in the horizontal direction, and is clamped into the first clamping position 11 or separated from the first clamping position 11.

The second clip 51 is also configured to be a notch shape, and is adapted to the number of the first clip 11, and the positions thereof are in one-to-one correspondence, except that the second clip 51 is disposed outside the first clip 11, and the opening direction thereof faces the first clip 11, so that when the spring pressing member pushes the lock body 32, and the lock body 32 is disengaged from the constraint, the lock body 32 can be disengaged from the first clip 11 and clipped into the second clip 51.

With reference to fig. 4 to fig. 6, in summary, the following advantages are achieved in 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 40 and a movable mold plate 20, wherein the fixed plate 60, the fixed mold plate 40 and the movable mold plate 20 are sequentially arranged from top to bottom, and when the mold system is in a locking state, the three parts are mutually covered, at the moment, the lock body 32 is locked with the first clamping position 11 on the locking rod 10, and the elastic pressing piece 31 is in a compression state; 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, because the lock body 32 is locked with the first clamping position 11, the movable mold plate 20 and the fixed mold plate 40 are fixed to each other and can move away from the fixed plate 60 in the mold opening direction together, and at this time, the locking rod 10 also synchronously slides relative to the fixed seat 50, thereby completing the first mold opening separation; after the injection molding machine further outputs pulling force, the movable mold plate 20 can move towards the mold opening direction to separate from the fixed mold plate 40, so that the second mold opening separation is completed. 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 40, and the mold opening sequence control mechanism has the advantages of simple structure composition, convenient operation, high reliability and stability.

In some embodiments, the lock seat 33 is provided with a first positioning surface, and the optional first positioning surface is a bottom surface of the lock seat 33; the locking rod 10 is provided with a second positioning surface, the second positioning surface is the top surface of the locking rod 10, and the first positioning surface is attached to the second positioning surface. So can guarantee that the mould system is in the locking state, with the help of first locating surface and second locating surface butt, the fixed plate 60 is inseparable with the laminating of fixed die plate 40, guarantees that whole mould system compact structure, firm.

Referring to fig. 3, in addition, in some embodiments, the locking assembly 30 further includes a lock seat 33, the lock seat 33 is disposed on the fixed mold plate 40 by bolts, the lock seat 33 is opened with a limiting guide slot 331, and the elastic pressing member 31 is disposed in the limiting guide slot 331. Specifically, the limiting guide groove 331 is a shallow groove formed in the middle of the side surface of the lock seat 33 facing the locking rod 10, and the size of the limiting guide groove can just accommodate the elastic pressing member 31, so that the elastic pressing member 31 can be stably installed by virtue of the constraint action of the groove wall of the limiting guide groove 331, and the problem of loosening and dropping is avoided. It should be noted that the depth of the limiting guide groove 331 should be determined not to affect the abutment of the elastic pressing member 31 and the lock body 32.

Referring to fig. 1 to 3, in some embodiments, the fixing base 50 includes a mounting plate 53 and a cover plate 52, the mounting plate 53 and the cover plate 52 are locked to the fixing plate 60 by a bolt assembly, that is, the fixing plate 60, the mounting plate 53 and the cover plate 52 are respectively provided with an assembling hole, and the bolt assembly is screwed into the assembling hole to assemble and fix the three. The cover plate 52 covers the outside of the locking assembly 30 and abuts against the side surface of the elastic pressing member 31. Thus, the cover plate 52 can further restrict the degree of freedom of the elastic pressing member 31, limit the lateral deviation of the elastic pressing member 31 in the direction away from the fixing plate 60, and ensure the reliable abutting of the elastic pressing member 31 on the lock body 32.

In other embodiments, the mounting plate 53 is provided with a positioning protrusion 531, the cover plate 52 is provided with a positioning groove 521, the positioning protrusion 531 is inserted into the positioning groove 521, and a sidewall of the positioning protrusion 531 abuts against a wall of the positioning groove 521. Specifically, the positioning protrusions 531 are bar-shaped bosses extending in the vertical direction, and the number thereof is preferably two and arranged side by side in the vertical direction. The two positioning protrusions 531 are inserted into the positioning groove 521, and the two outer sidewalls of the two positioning protrusions 531 are abutted to the two side walls of the positioning groove 521, so that the cover plate 52 and the mounting plate 53 can be accurately positioned and stably assembled. In addition, it should be noted that, when the mold system is in a locked state, and the lock body 32 is clamped with the first clamping position 11, the lock body 32 is also abutted against the groove wall of the positioning groove 521, so that the lock body 32 can reversely extrude the elastic abutting member 31 to contract, and the lock body 32 is stably clamped in the first clamping position 11, so that the lock rod 10 and the locking assembly 30 can be locked and fixed, that is, the fixed mold plate 40 and the movable mold plate 20 are fixed, so that the whole body can move away from the fixed plate 60 to complete the first mold opening separation.

With reference to fig. 2 and fig. 4 to fig. 6, in some embodiments, the second locking portions 51 are formed on the cover plate 52, specifically, the number of the second locking portions 51 is two, and the two second locking portions 51 are correspondingly disposed on the groove walls of the two sides respectively. And the two second detents 51 correspond to the two first detents 11 one to one. When the fixed plate 60, the fixed plate 40 and the movable plate 20 are in a locked state, the first position-lock 11 is disposed close to the fixed plate 60, and the second position-lock 51 is disposed far from the fixed plate 60. The first clamping position 11 and the second clamping position 51 are arranged far away from each other, and the distance formed by the first clamping position 11 and the second clamping position 51 can just meet the requirement of the moving stroke of the fixed die plate 40 and the moving die plate 20 during the first die opening, so that the lock body 32 can move along with the fixed die plate 40 to convert and clamp the first clamping position 11 into the second clamping position 51.

Moreover, the lock body 32 is simply switched from the first position 11 to the second position 51, and when the fixed template 40 and the movable template 20 with the locking rod 10 are far away from the fixed plate 60, the first position 11 and the lock body 32 together gradually approach the second position 51 until the first position 11 is aligned with the second position 51. At this time, the second position-limiting stop 51 provides an extending space, so that the elastic pressing member 31 can extend and return, thereby pushing the lock body 32 to slide and block in the second position-limiting stop 51, and the lock body 32 is completely separated from the contact with the first position-limiting stop 11. Therefore, the locking rod 10 is ensured to be separated from the constraint of the lock body 32, so that the movable mould plate 20 can be further pulled to be far away from the fixed mould plate 40, and the second mould opening separation is realized.

In order to ensure that the lock body 32 slides smoothly in a telescopic manner and can move along a preset track, in some embodiments, the lock base 33 is further provided with two limiting protrusions 332 disposed at intervals, a limiting sliding groove is formed between the two limiting protrusions 332, and the lock body 32 is slidably disposed in the limiting sliding groove. Preferably, the limiting protrusions 332 are four and are distributed in a rectangular shape, wherein one set of two limiting protrusions 332 in the vertical direction on one side is used for limiting and guiding one lock body 32, and the other set of two limiting protrusions 332 in the vertical direction on the other side is used for limiting and guiding the other lock body 32.

On the basis of any of the above embodiments, the lock body 32 includes a support plate 321, a positioning column 322 disposed on the support plate 321, and an insertion block 323 disposed on the positioning column 322, and the elastic pressing member 31 is sleeved with the positioning column 322. The carrier 321 can carry and fix the positioning posts 322 and the plugs 323. Two ends of the elastic pressing part 31 can be respectively sleeved on the two positioning columns 322, so as to further ensure that the elastic pressing part 31 is reliably installed. The insert block 323 can be clamped with the first clamp 11 or the second clamp 51 to realize the control of the mold opening sequence of the control mold.

In particular, in order to facilitate the insertion block 323 to transition from the first position 11 to the second position 51 while avoiding interference with the lock rod 10, a first arc surface 324 is provided at one end of the insertion block 323 facing the first position 11, and a second arc surface 325 is provided at one end of the insertion block 323 facing the second position 51; when the insert 323 is inserted into the second detent 51, the insert 323 is completely disengaged from the first detent 11. The first cambered surface 324 is arranged, so that the insertion block 323 has certain avoiding capacity, and the blocking interference with the locking rod 10 is avoided during the second die opening. The second arc 325 makes the insert 323 more easily inserted into the second detent 51. Of course. In other embodiments, the first arc surface 324 and the second arc surface 325 may be replaced by an inclined surface, a trapezoidal surface, etc., as long as the above technical effects can be achieved, and the details are not described herein.

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:

2. The mold opening sequence control mechanism as claimed in claim 1, wherein the locking assembly further comprises a lock seat, the lock seat is disposed on the fixed mold plate, the lock seat defines a limiting guide slot, and the elastic pressing member is disposed in the limiting guide slot.

3. The mold opening sequence control mechanism of claim 2, wherein the fixing seat comprises a cover plate which is arranged outside the locking assembly and is abutted with the side surface of the elastic pressing piece.

4. The mold opening sequence control mechanism of claim 3, wherein the fixing base further comprises a mounting plate locked with the cover plate on the fixing plate by a bolt assembly, the second clamping position is formed on the cover plate, and when the fixing plate, the fixed mold plate and the movable mold plate are in a locked state, the first clamping position is close to the fixing plate, and the second clamping position is far away from the fixing plate.

5. The mold opening sequence control mechanism according to claim 4, wherein the mounting plate is provided with a positioning protrusion, the cover plate is provided with a positioning groove, the positioning protrusion is inserted into the positioning groove, and a side wall of the positioning protrusion abuts against a groove wall of the positioning groove; the second clamping position is formed on the groove wall of the positioning groove.

6. The mold opening sequence control mechanism according to claim 2, wherein the lock base is further provided with two spacing protrusions arranged at intervals, a spacing sliding groove is formed between the two spacing protrusions, and the lock body is slidably arranged in the spacing sliding groove.

7. The mold opening sequence control mechanism as claimed in claim 2, wherein the lock body includes a support plate, a positioning post disposed on the support plate, and an insert block disposed on the positioning post, and the elastic pressing member is sleeved with the positioning post.

8. The mold opening sequence control mechanism of claim 7, wherein a first arc surface is provided at an end of the insert block facing the first detent, and a second arc surface is provided at an end of the insert block facing the second detent; when the inserting block is inserted into the second clamping position, the inserting block is completely separated from the first clamping position.

9. The mold opening sequence control mechanism of claim 2, wherein the lock base is provided with a first positioning surface, the lock rod is provided with a second positioning surface, and the first positioning surface is attached to the second positioning surface.

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