Mold ejection mechanism and mold

Abstract

The utility model provides a mold ejection mechanism and a mold. The mold ejection mechanism comprises a fixing plate for mounting a driving part, a force transmission part which is arranged on the fixing plate in a sliding manner and is used for being connected with a driving end of the driving part, and a pushing part which is connected with the force transmission part and is used for pushing a casting, the fixing plate is arranged on the mold, the force transmission part comprises a plurality of force transmission plates which are connected in sequence, any two adjacent force transmission plates are connected through a connecting unit, the connecting unit comprises a plurality of connecting pieces arranged around the driving end, and the pushing part is arranged on the force transmission plate close to the mold. According to the mold ejection mechanism disclosed by the utility model, the driving force applied by the driving part can be dispersed and transmitted sequentially through the plurality of force transmission plates and the plurality of connecting pieces, so that the stress uniformity of the force transmission plates with the pushing parts is improved, the sliding stability of the force transmission plates is improved, the problems of clamping stagnation and inclination during sliding are avoided, and the service life of the mold ejection mechanism is prolonged. And therefore, the pushing effect of the pushing part on the casting is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of casting molds, in particular to a mold ejection mechanism; meanwhile, the utility model also relates to a mold provided with the ejection mechanism. Background Art

[0002] In the prior art, the molds used for casting irregular curved pipe products (such as intake pipes) are mostly vertically parted, and the height of the mold core is twice the height of the cylinder head mold. The ejection of the casting is mostly carried out by the oil cylinder provided by the mold. However, the ejection mechanism is an ejection plate and multiple ejection rods arranged on the ejection plate. The oil cylinder applies external force to the ejection plate so that the multiple ejection rods eject the casting. The positive thrust of the oil cylinder acts locally in one direction in the middle of the ejection plate. The four corners of the ejection plate are subjected to uneven resistance from the riser of the casting, which makes the force on the ejection plate uneven, resulting in problems such as tilting or jamming of the ejection plate during movement, thereby affecting the ejection effect of the ejection rod on the casting, and in severe cases, affecting the performance of the bent casting. Utility Model Content

[0003] In view of this, the utility model aims to provide a mold ejection mechanism to improve the uniformity of force transmission and the stability of casting ejection.

[0004] In order to achieve the above object, the technical solution of the utility model is implemented as follows:

[0005] A mold ejection mechanism is used to eject a bent casting from a mold cavity, the mold ejection mechanism includes a fixed plate for mounting a driving part, a force transmission part slidably arranged on the fixed plate and used to be connected to the driving end of the driving part, and a pushing part connected to the force transmission part and used to push the casting; wherein the fixed plate is arranged on the mold, the force transmission part includes a plurality of force transmission plates connected in sequence, any two adjacent force transmission plates are connected by a connecting unit, and the connecting unit includes a plurality of connecting members arranged around the driving end, and the pushing part is arranged on the force transmission plate close to the mold.

[0006] Furthermore, along the force transmission path of the driving force of the driving part, the number of the connecting members in the connecting unit gradually increases; and / or, along the force transmission path of the driving force of the driving part, the distance between the connecting member in each connecting unit and the driving part gradually increases.

[0007] Furthermore, the fixed plate is arranged between two of the force transmission plates, and a first guide portion is provided between the fixed plate and the force transmission plate located on one side of the fixed plate, and the first guide portion is used to guide the sliding of the force transmission portion relative to the fixed plate.

[0008] Further, a limiting portion is provided between the fixed plate and the force transmission plate located on one side of the fixed plate, and the limiting portion is used to limit the pushing displacement of the pushing portion.

[0009] Further, the limiting portion includes a plurality of limiting columns provided on the fixed plate, and the plurality of limiting columns are arranged at intervals along the circumference of the driving end.

[0010] Further, the fixed plate is mounted on the mold through a mounting rod, and a through hole for the mounting rod to pass through is provided on the force transmission plate located on the side of the fixed plate close to the mold.

[0011] Further, an elastic portion is provided between the mold and the force transmission plate provided with the pushing portion.

[0012] Further, a second guiding portion is provided between the mold and the force transmission plate provided with the pushing portion, and the second guiding portion is used to guide the sliding of the pushing portion relative to the mold.

[0013] Compared with the prior art, the present utility model has the following advantages:

[0014] For the mold ejection mechanism of the present utility model, a plurality of force transmission plates connected in sequence in the force transmission portion are connected through a connection unit, and the connection unit includes a plurality of connection members arranged around the driving end, and the pushing portion is provided on the force transmission plate close to the mold, so that the driving force applied by the driving portion can be dispersed and transmitted successively through a plurality of force transmission plates and a plurality of connection members, which is beneficial to improving the force uniformity of the force transmission plate provided with the pushing portion, and thus the sliding smoothness of the force transmission plate, avoiding problems of jamming and tilting during sliding, and thus being beneficial to improving the pushing effect of the pushing portion on the casting.

[0015] In addition, along the force transmission path of the driving force, the number of connection members in the connection unit gradually increases, which is beneficial to improving the step-by-step dispersion effect of the driving force, and further beneficial to improving the force uniformity of the force transmission plate provided with the pushing portion; along the force transmission path of the driving force, the distance between the connection member and the driving portion gradually increases, which is beneficial to improving the step-by-step dispersion effect of the driving force and also beneficial to improving the force uniformity of the force transmission plate provided with the pushing portion. The fixed plate is located between two force transmission plates, and the setting of the first guiding portion is beneficial to improving the sliding stability of the force transmission portion relative to the fixed plate, and further preventing the force transmission portion from tilting or jamming.

[0016] In addition, by setting the limiting part to limit the pushing displacement of the pushing part, it is beneficial to improve the stability of the pushing part during pushing. The structure of the multiple limiting columns is simple, facilitating layout and implementation, and the combined use has a good limiting effect. The structure of the installation rod is simple, which is conducive to realizing the installation of the fixing plate. The arrangement of the through holes on the force transmission plate is beneficial to improve the stability of the force transmission plate during sliding. By setting the elastic part, it is beneficial to improve the stability of the force transmission plate during pushing. The setting of the second guiding part is also beneficial to improve the smoothness of the pushing part sliding relative to the mold.

[0017] In addition, another object of the present invention is to provide a mold, which includes a mold body, the mold ejection mechanism as described above, and a driving part arranged on the fixing plate.

[0018] Further, the driving part is an oil cylinder arranged on the fixing plate.

[0019] Compared with the prior art, the present invention has the following advantages:

[0020] For the mold of the present invention, by setting the mold ejection mechanism and the driving part as above, it is beneficial to improve the ejection effect on the bent casting.

[0021] In addition, the oil cylinder has the advantages of smooth movement, high precision and reliability, which is beneficial to further improve the ejection effect on the casting. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] The accompanying drawings constituting a part of the present invention are used to provide a further understanding of the present invention. The schematic embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation to the present invention. In the drawings:

[0023] Figure 1 is a schematic structural diagram of the mold ejection mechanism according to an embodiment of the present invention;

[0024] Figure 2 is a partial structural diagram of the mold ejection mechanism according to an embodiment of the present invention;

[0025] Figure 3 is a cross-sectional view of the mold ejection mechanism according to an embodiment of the present invention from one perspective;

[0026] Figure 4 is a cross-sectional view of the mold ejection mechanism according to an embodiment of the present invention from another perspective;

[0027] Figure 5 is a schematic structural diagram of the force transmission part according to an embodiment of the present invention;

[0028] Figure 6 is a partial structural diagram of the force transmission part according to an embodiment of the present invention.

[0029] Description of the reference numerals in the drawings:

[0030] 1. First force transmission plate; 2. Second force transmission plate; 3. Third force transmission plate; 4. Fixed plate; 5. Elastic part; 6. Driving part;

[0031] 100. Force transmission part; 200. Mold;

[0032] 101. First connecting piece; 102. Connecting seat;

[0033] 201. Second connecting piece; 202. Limit post; 203. Avoidance hole;

[0034] 301. Ejector rod; 302. Second guide sleeve; 303. Guide post;

[0035] 401. First guide sleeve; 402. Mounting rod;

[0036] 601. Driving shaft. Detailed implementation manners

[0037] It should be noted that, without conflict, the embodiments and the features in the embodiments of the present utility model can be combined with each other.

[0038] In the description of the present utility model, it should be noted that if terms indicating orientation or positional relationship such as "upper", "lower", "inner", "back", etc. appear, they are based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus cannot be construed as a limitation to the present utility model. In addition, if terms such as "first" and "second" appear, they are also only for descriptive purposes and cannot be construed as indicating or implying relative importance.

[0039] The present utility model will be described in detail below with reference to the drawings and in combination with the embodiments.

[0040] This embodiment relates to a mold ejection mechanism for ejecting a bent casting from the cavity of the mold 200. By optimizing its own structure, it solves the problems in the prior art that the mold ejection mechanism is not reasonably designed for bent castings (such as the intake pipe of a supercharger, etc.), and the ejector plate in the ejection mechanism is subjected to uneven resistance from the casting risers at the four corners, resulting in uneven stress on the ejector plate and making it prone to tilt or get stuck during the movement of the ejector plate. Among them, the riser of the casting is an important part of the casting process. The riser refers to the supplementary part set to compensate for the shrinkage during the solidification of the casting. It is generally located above or on one side of the casting and can be composed of a sand core or a metal core.

[0041] In terms of the overall structure, the mold ejection mechanism of this embodiment includes a fixed plate 4 for mounting the driving part 6, a force transmission part 100 slidably arranged on the fixed plate 4 and connected to the driving end of the driving part 6, and a pushing part connected to the force transmission part 100 and used for pushing the casting. Among them, the fixed plate 4 is arranged on the mold 200. The force transmission part 100 includes a plurality of force transmission plates connected in sequence. Any two adjacent force transmission plates are connected by a connection unit, and the connection unit includes a plurality of connection members arranged around the driving end. The pushing part is arranged on the force transmission plate close to the mold 200.

[0042] In the mold ejection mechanism of this embodiment, a plurality of force transmission plates connected in sequence in the force transmission part 100 are connected by a connection unit. The connection unit includes a plurality of connection members arranged around the driving end, and the pushing part is arranged on the force transmission plate close to the mold 200. The driving force applied by the driving part 6 can be dispersed and transmitted successively through a plurality of force transmission plates and a plurality of connection members, which is beneficial to improving the force uniformity of the force transmission plate with the pushing part, and then improving the sliding smoothness of the force transmission plate, avoiding problems such as jamming and tilting during sliding, and thus being beneficial to improving the pushing effect of the pushing part on the casting.

[0043] Based on the above overall introduction, an exemplary structure of the mold ejection mechanism in this embodiment is as Figures 1 to 4 shown in the figure. In this embodiment, the force transmission plates are preferably three spaced apart. For the convenience of distinguishing and describing the force transmission plates, the three force transmission plates arranged in sequence from far to near along the direction away from the mold 200 are respectively called the first force transmission plate 1, the second force transmission plate 2, and the third force transmission plate 3. The above-mentioned pushing part is specifically arranged on the third force transmission plate 3. As a preferred pushing part, a plurality of ejector rods 301 are arranged at intervals on the side of the third force transmission plate 3 facing the mold 200. The position and number of the ejector rods 301 can be adjusted according to the use requirements.

[0044] In this embodiment, a plurality of connection members located between the first force transmission plate 1 and the second force transmission plate 2 are called the first connection members 101, and a plurality of force transmission members located between the second force transmission plate 2 and the third force transmission plate 3 are called the second connection members 201. It should be noted that in this embodiment, the number of force transmission plates and the connection members in the connection unit can be adaptively increased or decreased according to the use requirements in addition to those shown in the figure.

[0045] As a preferred implementation manner, as Figure 1 and Figure 2As shown, the fixing plate 4 is disposed between two of the force transmission plates. A first guiding portion is provided between the fixing plate 4 and the force transmission plate on one side of the fixing plate 4. The first guiding portion is used to guide the sliding of the force transmission portion 100 relative to the fixing plate 4. Here, disposing the fixing plate 4 between the two force transmission plates and the setting of the first guiding portion are conducive to improving the sliding stability of the force transmission portion 100 relative to the fixing plate 4, and further preventing the force transmission portion 100 from tilting or jamming during sliding.

[0046] In terms of the specific structure, as Figure 2 and Figure 3 shown, the fixing plate 4 is preferably disposed between the second force transmission plate 2 and the third force transmission plate 3. Among them, the third force transmission plate 3 is located between the fixing plate 4 and the mold 200. In this way, the fixing plate 4 is closer to the mold 200, which is conducive to improving the installation convenience and stability of the fixing plate 4 on the mold 200. Of course, the solution of disposing the fixing plate 4 between the first force transmission plate 1 and the second force transmission plate 2 is also feasible.

[0047] As Figure 2 、 Figure 3 and Figure 5 shown, in this embodiment, the fixing plate 4 is mounted on the mold 200 through the mounting rods 402. A through hole for the mounting rod 402 to pass through is provided on the force transmission plate on the side of the fixing plate 4 close to the mold 200. For example, mounting rods 402 are respectively provided at the four corners of the fixing plate 4. One end of each mounting rod 402 is connected to the mold 200, and the other end is connected to the fixing plate 4. The fixing plate 4 is fixed on the mold 200 through the four mounting rods 402, which has the advantages of convenient installation and good installation stability.

[0048] Of course, during specific implementation, the number of the mounting rods 402 can be adaptively adjusted according to the usage requirements. In addition to the circular cross-section shown in the figure, the cross-section of the mounting rod 402 can also be square, oval or other geometric shapes, as long as the shape of the through hole is adapted to the cross-sectional shape of the mounting rod, and the two cooperate to have good stability, so as to meet the usage requirements.

[0049] As a preferred implementation manner, the first guiding portion in this embodiment is disposed between the fixing plate 4 and a plurality of second connecting members 201. Specifically, as Figure 3 shown, the fixing plate 4 is provided with first guiding holes through which the second connecting members 201 pass, and first guide sleeves 401 disposed in the first guiding holes. The second connecting members 201 are respectively arranged through the first guide sleeves 401. Such a setting is conducive to improving the sliding stability of the force transmission portion 100, and thus is conducive to improving the uniformity of the driving force. During specific implementation, the first guide sleeve 401 can specifically adopt a copper sleeve to have good wear resistance and durability.

[0050] In this embodiment, the driving part 6 is specifically arranged on one side of the fixing plate 4 facing the second force transmission plate 2. As shown in Figure 4 and Figure 6 , an avoidance hole 203 corresponding to the driving part 6 is provided on the second force transmission plate 2. A connecting seat 102 is provided on one side of the first force transmission plate 1 facing the second force transmission plate 2. The driving end of the driving part 6 passes through the avoidance hole 203 and is connected to the connecting seat 102, so as to apply a driving force towards the mold 200 to the first force transmission plate 1. Arranging the driving part 6 on the fixing plate 4 here is beneficial to improving the integration degree of the entire mold ejection mechanism, and further beneficial to reducing the occupied amount of the installation space, thus facilitating the layout implementation.

[0051] As a preferred implementation manner, along the force transmission path of the driving force of the driving part 6, the number of connecting pieces in the connecting unit gradually increases. Here, along the force transmission path of the driving force, that is, along the direction from the first force transmission plate 1 to the third force transmission plate 3, the number of the first connecting pieces 101 is less than the number of the second connecting pieces 201. Such a setting is beneficial to improving the effect of gradually dispersing the driving force, and further beneficial to improving the force uniformity of the force transmission plate with the pushing part.

[0052] In this embodiment, the multiple connecting pieces in the connecting unit are arranged at intervals along the circumferential direction of the connecting piece, so as to have better connection stability. As a preferred implementation manner, along the force transmission path of the driving force of the driving part 6, the distance between the connecting piece and the driving part 6 in each connecting unit gradually increases. Among them, the distance between the connecting piece and the driving part 6 refers to the distance between the axis of the first connecting piece 101 and the center line of the driving shaft 601 in the driving part 6. In addition, along the direction from the first force transmission plate 1 to the third force transmission plate 3, the area of the force transmission plate is gradually increased. Here, each force transmission plate is rectangular, the area of the first force transmission plate 1 is less than the area of the second force transmission plate 2, and the area of the second force transmission plate 2 is less than the area of the third force transmission plate 3.

[0053] Here, along the direction from the first force transmission plate 1 to the third force transmission plate 3, the distance between the first connecting piece 101 and the center line of the driving shaft 601 of the driving part 6 is less than the distance between the first connecting piece 101 and the center line of the driving shaft 601 of the driving part 6. Here, making the distance between the connecting piece and the driving part 6 gradually increase along the force transmission path of the driving force is beneficial to improving the effect of gradually dispersing the driving force, and also beneficial to improving the force uniformity of the force transmission plate with the pushing part.

[0054] In addition, as shown in Figures 3 to 5As shown in the figure, along the direction from the first force transmission plate 1 to the third force transmission plate 3, the number of multiple connecting pieces in each connecting unit is set to gradually increase. For example, the number of the first connecting pieces 101 in the first connecting unit is four, and the number of the second connecting pieces 201 in the second connecting unit is six. This is convenient for layout implementation and is beneficial to ensuring the structural stability of the force transmission part 100. Of course, in specific implementation, the number of connecting pieces in each connecting unit can also be adaptively increased or decreased according to the use requirements.

[0055] As a preferred implementation manner, a second guiding part is provided between the mold 200 in this embodiment and the force transmission plate provided with the pushing part, and the second guiding part is used to guide the pushing part to slide relative to the mold 200. Here, the setting of the second guiding part is also beneficial to improving the smoothness of the sliding of the pushing part relative to the mold 200.

[0056] In terms of the specific structure, referring to Figure 4 As shown in the figure, the second guiding part includes a plurality of guiding columns 303 spaced on the mold 200, a guiding hole provided on the third force transmission plate 3, and a second guide sleeve 302 provided in the guiding hole. The guiding columns 303 are respectively slidably arranged in the corresponding second guide sleeves 302, so as to be able to guide the sliding force transmission part 100. The second guide sleeve 302 is also preferably made of a copper sleeve to have good wear resistance and durability. Considering that the second guiding part is arranged closer to the mold 200, the second guiding part can perform preliminary guiding on the force transmission part 100, and the first guiding part can perform precise guiding on the force transmission part 100, so as to be beneficial to the stability of the force transmission part 100 during sliding. In specific implementation, the plurality of guiding columns 303 and the second connecting pieces 201 are arranged staggeredly, which is beneficial to improving the use effects of the second guiding part and the connecting unit.

[0057] As a preferred implementation manner, a limiting part is provided between the fixing plate 4 and the force transmission plate on one side of the fixing plate 4, and the limiting part is used to limit the pushing displacement of the pushing part. Here, by setting the limiting part to limit the pushing displacement of the pushing part, it is beneficial to improve the stability of the pushing part during pushing.

[0058] As a feasible implementation manner of the limiting part, as Figure 4 shown in the figure, the limiting part includes a plurality of limiting columns 202 provided on the fixing plate 4, and the plurality of limiting columns 202 are spaced along the circumference of the driving end. The structure of the plurality of limiting columns 202 is simple, convenient for layout implementation, and has a good limiting effect when used in cooperation. Of course, in specific implementation, in addition to arranging the limiting columns 202 on the side of the fixing plate 4 facing the third force transmission plate 3, they can also be arranged on the side of the third force transmission plate 3 facing the fixing plate 4. At this time, the movement of the third force transmission plate 3 towards the fixing plate 4 can also be limited by abutting against the fixing plate 4.

[0059] As Figure 4As shown in the figure, an elastic part 5 is provided between the mold 200 and the force transmission plate provided with a pushing part. When the third force transmission plate 3 moves towards the mold 200, the elastic part 5 can be compressed, which is beneficial to further improve the stability of the third force transmission plate 3 during sliding. As a preferred elastic part, a spring sleeved on part of the mounting rod is preferably used. Its structure is simple, easy to arrange and implement, and has good stability during compression. Of course, in addition to arranging the elastic part 5 on the guide post 303, the elastic part 5 can also be directly arranged outside the guide post 303 as long as the usage requirements are met.

[0060] When the mold ejection mechanism described in this embodiment is in use, the driving part 6 applies a driving force towards the mold 200 to the first force transmission plate 1. This driving force acts on the middle part of the first force transmission plate 1, and the driving force is first dispersed and transmitted to the second force transmission plate 2 through four first connecting parts 101 at the four corners of the first force transmission plate 1. The second force transmission plate 2 performs a second dispersion and transmission of the driving force through a plurality of second connecting parts 201, so as to transmit the force to the third force transmission plate 3. At this time, the driving forces at the middle part and the four corners of the third force transmission plate 3 are more uniform, and at the same time, it slides down towards the lower mold 200, and a plurality of elastic parts 5 are compressed. Finally, a plurality of ejector rods 301 eject the casting in the mold 200 from the cavity of the mold 200.

[0061] The mold ejection mechanism in this embodiment can overcome the uneven resistance of the casting riser through the cooperation of a plurality of force transmission plates and connection units, arrange more parts in a limited and compact space design, and successfully solve the problems such as tilting, instability, and jamming of the ejection plate caused by uneven force in one-way ejection.

[0062] In addition, this embodiment also relates to a mold 200, which includes a mold body, the above mold ejection mechanism, and a driving part 6 provided on the fixing plate 4. Specifically, the mold 200 here can be a casting mold 200 in the prior art. The mold ejection mechanism is preferably arranged on the lower mold 200 to facilitate ejecting the casting from the cavity of the lower mold 200.

[0063] As a preferred implementation manner, the driving part 6 in this embodiment is an oil cylinder provided on the fixing plate 4. The oil cylinder has the advantages of stable movement, high precision and reliability, which is beneficial to further improve the ejection effect on the casting.

[0064] The mold 200 shown in this embodiment is beneficial to improve the ejection effect on the bent casting by arranging the above mold ejection mechanism and driving part 6, and has the advantage of being easy to arrange and implement.

[0065] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A mold ejection mechanism for ejecting a bent casting from a mold cavity, characterized in that: The mold ejection mechanism comprises a fixing plate (4) for mounting a driving part (6), a force transmission part (100) slidably arranged on the fixing plate (4) and connected to a driving end of the driving part (6), and a pushing part connected to the force transmission part (100) and used for pushing the casting; Wherein, the fixing plate (4) is arranged on the mold (200), the force transmission part (100) includes a plurality of force transmission plates connected in sequence, any two adjacent force transmission plates are connected via a connecting unit, and the connecting unit includes a plurality of connecting parts arranged around the driving end, and the pushing part is arranged on the force transmission plate close to the mold (200).

2. The mold ejection mechanism according to claim 1, characterized in that: Along the force transmission path of the driving force of the driving part (6), the number of the connecting members in the connecting unit gradually increases; and / or, Along the force transmission path of the driving force of the driving part (6), the distance between the connecting member and the driving part (6) in each connecting unit gradually increases.

3. The mold ejection mechanism according to claim 1, characterized in that: The fixed plate (4) is arranged between two of the force transmission plates, and a first guide portion is arranged between the fixed plate (4) and the force transmission plate located on one side of the fixed plate (4), and the first guide portion is used to guide the sliding of the force transmission portion (100) relative to the fixed plate (4).

4. The mold ejection mechanism according to claim 3, characterized in that: A limiting portion is provided between the fixing plate (4) and the force transmission plate located on one side of the fixing plate (4), and the limiting portion is used to limit the pushing displacement of the pushing portion.

5. The mold ejection mechanism according to claim 4, characterized in that: The limiting portion comprises a plurality of limiting columns (202) arranged on the fixing plate (4), and the plurality of limiting columns (202) are arranged at intervals along the circumference of the driving end.

6. The mold ejection mechanism according to claim 3, characterized in that: The fixing plate (4) is mounted on the mold (200) via a mounting rod (402), and a through hole for the mounting rod (402) to pass through is provided on the force transmission plate located on a side of the fixing plate (4) close to the mold (200).

7. The mold ejection mechanism according to claim 1, characterized in that: An elastic portion (5) is provided between the mold (200) and the force transmission plate provided with the pushing portion.

8. The mold ejection mechanism according to any one of claims 1 to 7, characterized in that: A second guide portion is provided between the mold (200) and the force transmission plate provided with the pushing portion, and the second guide portion is used to guide the pushing portion to slide relative to the mold (200).

9. A mold, characterized in that: It comprises a mold body, a mold ejection mechanism according to any one of claims 1 to 8, and a driving part (6) arranged on the fixed plate (4).

10. The mold (200) according to claim 9, characterized in that: The driving part (6) is an oil cylinder arranged on the fixing plate (4).

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