Die capable of being quickly replaced

Abstract

The utility model relates to the technical field of molds, and particularly discloses a mold capable of being quickly replaced, which comprises a front mold mechanism, a rear mold mechanism, a mold core mechanism and an ejection mechanism, the mold core mechanism is arranged between the front mold mechanism and the rear mold mechanism, the ejection mechanism is arranged between the mold core mechanism and the rear mold mechanism, and the ejection mechanism is used for ejecting a blank in the mold core mechanism; the mold core mechanism comprises a front mold core and a rear mold core, the front mold core is detachably connected with the front mold mechanism, the rear mold core is detachably connected with the rear mold mechanism, one end of the ejection mechanism is connected with the rear mold core, and the other end of the ejection mechanism abuts against the rear mold mechanism; the front mold core and the rear mold core are matched to form a forming cavity used for forming a workpiece, and the ejection mechanism is used for separating the workpiece from the rear mold core. According to the utility model, the rear mold core is connected with the ejection mechanism, the front mold core is detachably connected with the front mold mechanism, and the rear mold core is detachably connected with the rear mold mechanism, so that the mold can be directly and quickly replaced on an injection molding machine table, the mold replacement time is greatly shortened, and the mold replacement efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of molds, and particularly discloses a mold that can be quickly replaced. Background Art

[0002] An injection mold is a device for molding plastic parts. When in use, molten rubber material is injected into the cavity of the mold core. After the rubber material cools slightly, it becomes the shape and structure of the mold core cavity. When the injection mold is opened, this plastic part is ejected. Repeating the above actions can produce multiple plastic parts with the same shape and structure.

[0003] The existing injection molds mainly consist of two major parts: a mold base and a mold core. The mold core part is mainly designed and determined according to the shape characteristics of the plastic part. The mold base serves to assist and support the mold core and is mainly used for locking on the injection molding machine table. In the prior art, when making a mold for a new product plastic part, the mold core needs to be newly made according to the product plastic part. Including the slider parts and ejector parts in the mold also need to be newly made in cooperation with the mold core parts. All these will affect the structures such as the A plate, B plate, ejector pin panel, and ejector pin bottom plate on the mold base, which all need to be reordered and made anew. It can be seen that in the vast majority of cases, as long as the mold core parts are different, the overall mold base is also different. Therefore, a set of mold base and mold core can only be used to produce one kind of plastic part. Since different batches of injection products often need to have differences in models and details, it is often necessary to use different mold cores to form slightly different injection products. However, when the mold core is removed and replaced, the entire mold needs to be disassembled piece by piece, which is rather cumbersome and greatly reduces the work efficiency. Summary of the Utility Model

[0004] In order to overcome the disadvantages and deficiencies existing in the prior art, the purpose of the utility model is to provide a mold that can quickly complete mold replacement directly on the injection molding machine table with high mold replacement efficiency.

[0005] To achieve the above purpose, a mold that can be quickly replaced according to the utility model includes a front mold mechanism, a rear mold mechanism, a mold core mechanism, and an ejector mechanism. The mold core mechanism is arranged between the front mold mechanism and the rear mold mechanism, and the ejector mechanism is arranged between the mold core mechanism and the rear mold mechanism. The ejector mechanism is used to eject the blank in the mold core mechanism; the mold core mechanism includes a front mold core and a rear mold core. The front mold core is detachably connected to the front mold mechanism, the rear mold core is detachably connected to the rear mold mechanism, one end of the ejector mechanism is connected to the rear mold core, and the other end of the ejector mechanism abuts against the rear mold mechanism; the front mold core and the rear mold core cooperate to form a molding cavity for molding a workpiece, and the ejector mechanism is used to separate the workpiece from the rear mold core. Through the connection of the rear mold core with the ejector mechanism, the detachable connection of the front mold core with the front mold mechanism, and the detachable connection of the rear mold core with the rear mold mechanism, the utility model can quickly complete mold replacement directly on the injection molding machine table, greatly reducing the mold replacement time and improving the mold replacement efficiency.

[0006] Furthermore, one end of the front mold mechanism close to the rear mold mechanism is provided with a first blind groove portion. A first stopper is provided on the front mold mechanism. A first protrusion is provided on the first stopper. A notch adapted to the first protrusion is provided on the front mold core. The front mold core is placed in the first blind groove portion. The first stopper abuts against the front mold core to stop it. The first blind groove does not cooperate with the first stopper to fix the front mold core, ensuring that the front mold core can be accurately positioned and fixed during assembly and preventing the front mold core from moving during the working process.

[0007] Furthermore, multiple groups of the first stoppers are provided. The multiple groups of first stoppers are detachably connected to the front mold mechanism via bolts. The first stoppers detachably connected via bolts can not only increase the stability of the front mold core fixation but also maintain the flexibility of disassembly and replacement, improving the mold changing efficiency.

[0008] Furthermore, there is also a second stopper on the rear mold mechanism. The second stopper has the same structure as the first stopper. The second stopper is used to abut against the rear mold core to stop it. The second stopper ensures that the rear mold core can be accurately positioned and fixed during assembly and prevents the rear mold core from moving during the working process. Having the same structure as the first stopper can not only increase the stability of the rear mold core fixation but also maintain the flexibility of disassembly and replacement, improving the mold changing efficiency.

[0009] Furthermore, the ejection mechanism includes a base, ejector pins, and guide columns. One end of the guide column penetrates through the base and abuts against the rear mold mechanism. The other end of the guide column penetrates through the rear mold core and is connected to the rear mold core. One end of the ejector pin is connected to the base. The other end of the ejector pin penetrates through the rear mold core and extends into the molding cavity. The base slides relative to the rear mold mechanism via the guide column, and the base drives the ejector pins to push the workpiece. The ejection mechanism has a simple structure and reasonable design, can effectively eject the workpiece, and at the same time ensures that the ejector pins will not deviate during the ejection process.

[0010] Furthermore, a snap - fit component is provided on the rear mold mechanism. The snap - fit component includes a third stopper and an elastic member. The elastic member is arranged between the third stopper and the rear mold mechanism. A second protrusion is provided on the third stopper. A groove adapted to the second protrusion is provided on the base. The base is detachably connected to the rear mold mechanism via the snap - fit component. The snap - fit component ensures the detachable connection between the base and the rear mold mechanism, provides a safe and stable fixing method, and at the same time facilitates the rapid disassembly and assembly of the ejection mechanism, improving the efficiency of mold replacement.

[0011] Furthermore, multiple groups of the snap - fit components are provided. The multiple groups of snap - fit components are arranged in a rectangular array at two ends of the rear mold core away from each other. This further increases the stability of the base fixation and ensures the stability and reliability of the ejection mechanism during the working process.

[0012] Furthermore, the snap - fit component further includes a first pull rod. One end of the first pull rod is connected to the third stopper, and the other end of the first pull rod penetrates through the rear mold mechanism. Through the operation of the pull rod, the assembly and disassembly of the ejection mechanism can be more conveniently achieved, improving the efficiency of mold replacement.

[0013] Furthermore, a pushing block slidably connected to the front mold mechanism is provided on the front mold mechanism. A guiding surface is provided at one end of the pushing block close to the first stopper, and the guiding surface abuts against the first stopper; the pushing block slides relative to the front mold mechanism and pushes the first stopper via the guiding surface. When disassembling the front mold core, the pushing block pushes the first stopper through the guiding surface, which can disengage the first stopper from the front mold mechanism, facilitating the disassembly of the first stopper, improving the accuracy and efficiency of assembly, and thus improving the mold change efficiency.

[0014] Furthermore, a second pull rod is provided on the front mold core and / or the rear mold core, and an avoidance groove is provided on the front mold mechanism and / or the rear mold mechanism. The second pull rod extends out of the front mold mechanism and / or the rear mold mechanism through the avoidance groove. Through the design of the second pull rod and the avoidance groove, it is convenient to disassemble the front mold core and / or the rear mold core, making the mold core replacement more convenient and fast, and thus improving the mold change efficiency.

[0015] Advantages of the present utility model:

[0016] In the present utility model, the rear mold core is connected to the ejection mechanism, the front mold core is detachably connected to the front mold mechanism, and the rear mold core is detachably connected to the rear mold mechanism. The mold change can be quickly completed directly on the injection molding machine table, greatly reducing the mold change time and improving the mold change efficiency. At the same time, standard mold cores are adopted, enabling the mold cores to be shared and reducing the production cost;

[0017] The first blind groove does not cooperate with the first stopper to fix the front mold core, ensuring that the front mold core can be accurately positioned and fixed during assembly, preventing the front mold core from moving during the working process. The first stopper detachably connected by bolts can not only increase the stability of the front mold core fixation but also maintain the flexibility of disassembly and replacement, improving the mold change efficiency. The second stopper with the same structure as the first stopper can not only increase the stability of the rear mold core fixation but also maintain the flexibility of disassembly and replacement, improving the mold change efficiency;

[0018] The buckle assembly ensures the detachable connection between the base and the rear mold mechanism, provides a safe and stable fixing method, and at the same time facilitates the quick disassembly and assembly of the ejection mechanism, improving the efficiency of mold replacement. Through the operation of the pull rod, the assembly and disassembly of the ejection mechanism can be more conveniently achieved, improving the efficiency of mold replacement;

[0019] When disassembling the front mold core, the pushing block pushes the first stopper through the guiding surface, which can disengage the first stopper from the front mold mechanism, facilitating the disassembly of the first stopper, improving the accuracy and efficiency of assembly, and thus improving the mold change efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 is a schematic structural diagram of a mold that can be quickly replaced according to the present utility model;

[0021] Figure 2 is an exploded view of a mold that can be quickly replaced according to the present utility model;

[0022] Figure 3 A cross-sectional view of a mold that can be quickly replaced according to the present utility model;

[0023] Figure 4 A schematic structural view of the front mold mechanism of the present utility model;

[0024] Figure 5 A schematic structural view of the rear mold mechanism of the present utility model;

[0025] Figure 6 A schematic structural view of the front mold core of the present utility model;

[0026] Figure 7 A schematic structural view of the rear mold core of the present utility model;

[0027] Figure 8 A schematic structural view of the ejection mechanism of the present utility model;

[0028] Figure 9 A schematic structural view of the snap component of the present utility model;

[0029] Figure 10 A schematic structural view of the third stop block of the present utility model;

[0030] Figure 11 A cross-sectional view of the front mold mechanism and the front mold core of the present utility model;

[0031] Figure 12 is Figure 11 a partial view of A in

[0032] Reference numerals include:

[0033] 1, front mold mechanism; 11, first blind groove part; 12, first stop block; 121, first protruding part; 13, pushing block; 131, guiding surface; 14, injection hole; 2, rear mold mechanism; 21, second stop block; 22, snap component; 221, third stop block; 222, elastic member; 223, first pull rod; 2211, second protruding part; 3, mold core mechanism; 31, front mold core; 32, rear mold core; 33, molding cavity; 34, second pull rod; 4, ejection mechanism; 41, base; 42, ejector pin; 43, guiding column; 5, positioning groove; 6, positioning protrusion. Detailed implementation manners

[0034] To further elaborate on the technical means and effects adopted by the present utility model to achieve the predetermined utility model purpose, the following, in conjunction with the accompanying drawings and preferred embodiments, details the specific implementation manners, structures, features, and their effects of the present utility model as follows.

[0035] Please refer to Figures 1 to 12As shown in the figure, a mold that can be quickly replaced according to the present utility model includes a front mold mechanism 1, a rear mold mechanism 2, a mold core mechanism 3, and an ejection mechanism 4. The mold core mechanism 3 is arranged between the front mold mechanism 1 and the rear mold mechanism 2, and the ejection mechanism 4 is arranged between the mold core mechanism 3 and the rear mold mechanism 2. The ejection mechanism 4 is used to eject the blank in the mold core mechanism 3; the mold core mechanism 3 includes a front mold core 31 and a rear mold core 32. The front mold core 31 is detachably connected to the front mold mechanism 1, and the rear mold core 32 is detachably connected to the rear mold mechanism 2. One end of the ejection mechanism 4 is connected to the rear mold core 32, and the other end of the ejection mechanism 4 abuts against the rear mold mechanism 2; the front mold core 31 and the rear mold core 32 cooperate to form a molding cavity 33 for molding the workpiece, and the ejection mechanism 4 is used to separate the workpiece from the rear mold core 32. By connecting the rear mold core 32 with the ejection mechanism 4, the front mold core 31 is detachably connected to the front mold mechanism 1, and the rear mold core 32 is detachably connected to the rear mold mechanism 2, the mold can be quickly replaced directly on the injection molding machine table, greatly reducing the mold replacement time and improving the mold replacement efficiency; at the same time, standard mold cores are adopted, so that the mold cores can be shared and the production cost is reduced.

[0036] During use, the front mold mechanism 1 and the rear mold mechanism 2 are respectively installed on the injection molding machine table. The front mold core 31 is installed on the front mold mechanism 1, and the rear mold core 32 and the ejection mechanism 4 are connected and installed on the rear mold mechanism 2. The injection molding machine injects molten rubber material into the molding cavity 33. After cooling and molding, the front mold mechanism 1 and the rear mold mechanism 2 are separated, and the ejection mechanism 4 ejects the workpiece in the molding cavity 33. When replacing the mold, the front mold core 31 on the front mold mechanism 1 is disassembled, and the rear mold core 32 and the ejection mechanism 4 are separated from the rear mold mechanism 2, and a new mold is installed.

[0037] Specifically, an injection molding jack 14 for inserting the injection nozzle of the injection molding machine is provided on the front mold mechanism 1. The injection molding jack 14 is communicated with the molding cavity 33 on the mold core mechanism 3 through a channel. The front mold mechanism 1 is fixedly connected to the external injection molding machine. When replacing the mold, there is no need to reconnect the injection molding machine, and the mold can be quickly replaced directly on the injection molding machine table, improving the mold replacement efficiency.

[0038] Specifically, a positioning protrusion 6 protruding from the rear mold mechanism 2 is provided on the rear mold mechanism 2, and a positioning groove 5 adapted to the positioning protrusion 6 is provided on the front mold mechanism 1. When assembling the mold, the positioning protrusion 6 extends into the positioning groove 5, increasing the stability of the mold, ensuring that the front mold mechanism 1 and the rear mold mechanism 2 can be accurately positioned and fixed during assembly, and preventing the front mold mechanism 1 and the rear mold mechanism 2 from moving during the working process.

[0039] In this embodiment, both the positioning protrusion 6 and the positioning groove 5 are provided with four groups, and both the positioning protrusion 6 and the positioning groove 5 are arranged around the central axis of the front mold mechanism 1.

[0040] One end of the front mold mechanism 1 close to the rear mold mechanism 2 is provided with a first blind groove portion 11. A first stopper 12 is provided on the front mold mechanism 1. A first protrusion 121 is provided on the first stopper 12. A notch adapted to the first protrusion 121 is provided on the front mold core 31. The front mold core 31 is placed in the first blind groove portion 11, and the first stopper 12 abuts against the front mold core 31 in a blocking manner. The first blind groove does not cooperate with the first stopper 12 to fix the front mold core 31, ensuring that the front mold core 31 can be accurately positioned and fixed during assembly and preventing the front mold core 31 from moving during the working process.

[0041] There are multiple groups of the first stoppers 12, and the multiple groups of first stoppers 12 are detachably connected to the front mold mechanism 1 via bolts. The first stoppers 12 detachably connected via bolts can not only increase the stability of the fixation of the front mold core 31, but also maintain the flexibility of disassembly and replacement, improving the mold change efficiency.

[0042] There is also a second stopper 21 on the rear mold mechanism 2. The second stopper 21 has the same structure as the first stopper 12, and the second stopper 21 is used to abut against the rear mold core 32 in a blocking manner. The second stopper 21 ensures that the rear mold core 32 can be accurately positioned and fixed during assembly and prevents the rear mold core 32 from moving during the working process. Having the same structure as the first stopper 12 can not only increase the stability of the fixation of the rear mold core 32, but also maintain the flexibility of disassembly and replacement, improving the mold change efficiency.

[0043] The ejection mechanism 4 includes a base 41, ejector pins 42 and guide posts 43. One end of the guide post 43 penetrates through the base 41 and abuts against the rear mold mechanism 2. The other end of the guide post 43 penetrates through the rear mold core 32 and is connected to the rear mold core 32. One end of the ejector pin 42 is connected to the base 41, and the other end of the ejector pin 42 penetrates through the rear mold core 32 and extends into the molding cavity 33; the base 41 slides relative to the rear mold mechanism 2 via the guide post 43, and the base 41 drives the ejector pins 42 to push the workpiece. The ejection mechanism 4 has a simple structure and a reasonable design, can effectively eject the workpiece, and at the same time ensures that the ejector pins 42 will not deviate during the ejection process.

[0044] A buckle assembly 22 is provided on the rear mold mechanism 2. The buckle assembly 22 includes a third stopper 221 and an elastic member 222. The elastic member 222 is arranged between the third stopper 221 and the rear mold mechanism 2. A second protrusion 2211 is provided on the third stopper 221. A groove adapted to the second protrusion 2211 is provided on the base 41; the base 41 is detachably connected to the rear mold mechanism 2 via the buckle assembly 22. The buckle assembly 22 ensures the detachable connection between the base 41 and the rear mold mechanism 2, provides a safe and stable fixing method, and at the same time facilitates the quick disassembly and assembly of the ejection mechanism 4, improving the efficiency of mold replacement.

[0045] There are multiple groups of the buckle assemblies 22, and the multiple groups of buckle assemblies 22 are arranged in a rectangular array at both ends of the rear mold core 32 away from each other. Further increasing the stability of the fixation of the base 41 ensures the stability and reliability of the ejection mechanism 4 during the working process.

[0046] The snap component 22 further includes a first pull rod 223. One end of the first pull rod 223 is connected to the third stop block 221, and the other end of the first pull rod 223 penetrates through the rear mold mechanism 2. Through the operation of the pull rod, the assembly and disassembly of the ejection mechanism 4 can be more conveniently achieved, improving the efficiency of mold replacement.

[0047] A push block 13 slidably connected to the front mold mechanism 1 is provided on the front mold mechanism 1. A guiding surface 131 is provided at one end of the push block 13 close to the first stop block 12, and the guiding surface 131 abuts against the first stop block 12; the push block 13 slides relative to the front mold mechanism 1 and pushes the first stop block 12 via the guiding surface 131. When disassembling the front mold core 31, the push block 13 pushes the first stop block 12 through the guiding surface 131, so that the first stop block 12 can be separated from the front mold mechanism 1, facilitating the disassembly of the first stop block 12, improving the accuracy and efficiency of assembly, and thus improving the efficiency of mold replacement.

[0048] A second pull rod 34 is provided on the front mold core 31 and / or the rear mold core 32, and an avoidance groove is provided on the front mold mechanism 1 and / or the rear mold mechanism 2. The second pull rod 34 extends out of the front mold mechanism 1 and / or the rear mold mechanism 2 via the avoidance groove. Through the design of the second pull rod 34 and the avoidance groove, it is convenient to disassemble the front mold core 31 and / or the rear mold core 32, making the mold core replacement more convenient and fast, and thus improving the efficiency of mold replacement.

[0049] In a further technical solution, a water injection port for plugging an external cooler is provided on the front mold mechanism 1. The water injection port is communicated with the first blind groove portion 11 through a channel. After injection molding, the cooler injects coolant through the water injection port, and the coolant exchanges heat with the front mold mechanism 1 in the first blind groove, quickly cooling the front mold mechanism 1, reducing the cooling and molding time, and thus improving the efficiency of mold replacement.

[0050] In use, the front mold mechanism 1 and the rear mold mechanism 2 are respectively installed on the injection molding machine table. The front mold core 31 is installed in the first blind groove portion 11 of the front mold mechanism 1. The first stopper 12 is installed on the front mold mechanism 1 via bolts. The first stopper 12 abuts against the front mold core 31. Similarly, the rear mold core 32 is installed on the rear mold mechanism 2. The base 41 of the ejection mechanism 4 is connected to the rear mold mechanism 2 via the snap-fit assembly 22. The second protrusion 2211 is provided on the third stopper 221 and abuts against the groove of the base 41. The front mold mechanism 1 approaches the rear mold mechanism 2. The positioning protrusion 6 extends into the positioning groove 5 to increase the stability of the mold. The injection molding machine injects molten rubber material into the molding cavity 33 through the injection jack 14. After cooling and molding, the front mold mechanism 1 and the rear mold mechanism 2 are separated. The first pull rod 223 is pulled to compress the elastic member 222. The third stopper 221 moves away from the base 41. The base 41 is separated from the rear mold mechanism 2. The base 41 is pushed. Under the guidance of the guide post 43, the ejector pin 42 abuts against the workpiece in the molding cavity 33 and ejects the workpiece out of the molding cavity 33. When changing the mold, the first stopper 12 is disassembled. The ejector block 13 slides relative to the front mold mechanism 1 and pushes the first stopper 12 via the guiding surface 131 to make the first stopper 12 disengage from the front mold mechanism 1. The second pull rod 34 is pulled to disassemble the front mold core 31. The same steps are used to disassemble the rear mold core 32, which will not be elaborated here. After disassembly, a new mold core is installed.

[0051] The above are only the preferred embodiments of the present invention, and do not impose any form of limitation on the present invention. Although the present invention has been disclosed above with the preferred embodiments, it is not intended to limit the present invention. Any person skilled in the art can make some changes or modifications to the above-disclosed technical content to form equivalent embodiments with equivalent changes within the scope of the technical solution of the present invention. However, as long as it does not depart from the content of the technical solution of the present invention, any brief modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the present invention still fall within the scope of the technical solution of the present invention.

Claims

1. A quickly replaceable mold, comprising a front mold mechanism (1), a rear mold mechanism (2), a core mechanism (3) and an ejection mechanism (4), wherein the core mechanism (3) is arranged between the front mold mechanism (1) and the rear mold mechanism (2), and the ejection mechanism (4) is arranged between the core mechanism (3) and the rear mold mechanism (2), and the ejection mechanism (4) is used to eject a blank in the core mechanism (3); characterized in that: The mold core mechanism (3) comprises a front mold core (31) and a rear mold core (32); the front mold core (31) and the front mold mechanism (1) are detachably connected, the rear mold core (32) and the rear mold mechanism (2) are detachably connected, one end of the ejection mechanism (4) is connected to the rear mold core (32), and the other end of the ejection mechanism (4) abuts against the rear mold mechanism (2); the front mold core (31) and the rear mold core (32) cooperate to form a molding cavity (33) for molding a workpiece, and the ejection mechanism (4) is used to separate the workpiece from the rear mold core (32).

2. A quickly replaceable mold according to claim 1, characterized in that: The front mold mechanism (1) is provided with a first blind groove portion (11) at one end close to the rear mold mechanism (2); the front mold mechanism (1) is provided with a first stopper (12); the first stopper (12) is provided with a first protrusion (121); the front mold core (31) is provided with a notch matched with the first protrusion (121); the front mold core (31) is placed in the first blind groove portion (11); and the first stopper (12) and the front mold core (31) are in blocking contact.

3. A quickly replaceable mold according to claim 2, characterized in that: The first stoppers (12) are provided in multiple groups, and the multiple groups of first stoppers (12) are detachably connected to the front mold mechanism (1) via bolts.

4. A quickly replaceable mold according to claim 2, characterized in that: The upper portion of the rear mold mechanism (2) is also provided with a second stopper (21), the second stopper (21) having the same structure as the first stopper (12), and the second stopper (21) is used to stop and abut against the rear mold core (32).

5. The quickly replaceable mold according to claim 1, characterized in that: The ejection mechanism (4) comprises a base (41), an ejector pin (42) and a guide column (43); one end of the guide column (43) penetrates the base (41) and contacts the rear mold mechanism (2); the other end of the guide column (43) penetrates the rear mold core (32) and is connected to the rear mold core (32); one end of the ejector pin (42) is connected to the base (41); the other end of the ejector pin (42) penetrates the rear mold core (32) and extends into the molding cavity (33); the base (41) slides relative to the rear mold mechanism (2) via the guide column (43); the base (41) drives the ejector pin (42) to push the workpiece.

6. A quickly replaceable mold according to claim 5, characterized in that: The rear mold mechanism (2) is provided with a buckle assembly (22), the buckle assembly (22) comprises a third stopper (221) and an elastic member (222), the elastic member (222) is arranged between the third stopper (221) and the rear mold mechanism (2), the third stopper (221) is provided with a second protrusion (2211), and the base (41) is provided with a groove matched with the second protrusion (2211); the base (41) is detachably connected to the rear mold mechanism (2) via the buckle assembly (22).

7. A quickly replaceable mold according to claim 6, characterized in that: The buckle components (22) are provided in a plurality of groups, and the plurality of buckle components (22) are arranged in a rectangular array at two ends of the rear mold core (32) that are away from each other.

8. The quickly replaceable mold according to claim 6, characterized in that: The buckle assembly (22) further comprises a first pull rod (223), one end of the first pull rod (223) is connected to the third stopper (221), and the other end of the first pull rod (223) passes through the rear mold mechanism (2).

9. The quickly replaceable mold according to claim 2, characterized in that: The front mold mechanism (1) is provided with a push block (13) which is slidably connected to the front mold mechanism (1); an end of the push block (13) close to the first stop block (12) is provided with a guide surface (131), and the guide surface (131) contacts the first stop block (12); the push block (13) slides relative to the front mold mechanism (1) to push the first stop block (12) via the guide surface (131).

10. The quickly replaceable mold according to claim 1, characterized in that: A second pull rod (34) is provided on the front mold core (31) and / or the rear mold core (32), and a position-avoiding groove is provided on the front mold mechanism (1) and / or the rear mold mechanism (2), and the second pull rod (34) extends out of the front mold mechanism (1) and / or the rear mold mechanism (2) via the position-avoiding groove.

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