Mould of medical transfer device

Abstract

The utility model discloses a die of a medical transfer device, which comprises an upper die set and a lower die set, the upper die set comprises an upper die plate, a first-stage pouring plate, a second-stage pouring plate and a plurality of upper die cores driven by the second-stage pouring plate; the lower die set comprises a lower die plate and a plurality of lower die cores, and the upper die cores and the lower die cores are closed to form a plurality of cavities. The first-stage pouring plate is connected with a pouring pipe, the first-stage pouring plate and the second-stage pouring plate are closed to form a plurality of upper pouring gates, the second-stage pouring plate and the upper mold core are closed to form a plurality of lower pouring gates, and the pouring pipe is communicated with the upper pouring gates and the lower pouring gates; the mold further comprises a locking assembly and a limiting column fixed in the upper mold set, the upper mold set is provided with a first mold opening stroke and a second mold opening stroke, the first-stage pouring plate is far away from the second-stage pouring plate in any mold opening stroke, the second-stage pouring plate is closed with the lower mold set in the first mold opening stroke and keeps mold closing of the cavity, and the second-stage pouring plate is far away from the lower mold set in the second mold opening stroke. Therefore, the forming quality of the transfer device is ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of mold equipment, in particular to a mold of a medical transfer device. Background Art

[0002] In the current mold equipment, especially the molding molds for smaller products such as medical transfer devices, in order to improve production efficiency, multiple cavities are arranged between the upper and lower mold groups, and a transfer device is molded in each cavity. However, although this arrangement can mold multiple transfer device products at one time, since multiple cavities need to be connected to the casting material, in order to ensure that the casting material enters each cavity sufficiently and evenly, it is necessary to arrange multi-level casting plates in the upper mold group to meet the uniform diversion of the casting material. In the mold equipment in the prior art, the multi-level runners are connected respectively, and the multiple casting plates are synchronously opened by the press, resulting in the breakage of the gate molding material between the multi-level casting plates, and even the transfer device product formed by the gate molding material is pulled. Since the wall thickness of the transfer device product is thin and there are more internal surfaces, the risk of being pulled damaged is further increased, affecting the product quality. Utility Model Content

[0003] In view of the deficiencies in the prior art, the utility model aims to provide a mold for a medical transfer device.

[0004] The above technical objectives of the utility model are achieved through the following technical solutions:

[0005] A mold for a medical transfer device comprises an upper mold group and a lower mold group, wherein the upper mold group comprises an upper mold plate, a primary pouring plate and a secondary pouring plate sequentially arranged at the bottom of the upper mold plate, and a plurality of upper mold cores driven by the secondary pouring plate;

[0006] The lower die set includes a lower die plate and a plurality of lower die cores arranged on the lower die plate, wherein the upper die core and the lower die core are closed to form a plurality of cavities;

[0007] The primary pouring plate is connected to a pouring pipe, and the primary pouring plate and the secondary pouring plate are closed to form a plurality of upper pouring channels that are connected horizontally and vertically with respect to a horizontal plane, and the secondary pouring plate and the upper mold core are closed to form a plurality of lower pouring channels that are connected to the mold cavity, and the lower pouring channels are arranged vertically, and the pouring pipe is connected to the upper pouring channels and the lower pouring channels;

[0008] It also includes a locking assembly connected between the upper mold group and the lower mold group and a limiting column fixed in the upper mold group, and the upper mold group is provided with a first mold opening stroke and a second mold opening stroke, the primary casting plate is away from the secondary casting plate in any mold opening stroke, the secondary casting plate is constrained by the locking assembly in the first mold opening stroke, and is closed with the lower mold group to keep the mold cavity closed, and the secondary casting plate is driven by the limiting column to be away from the lower mold group in the second mold opening stroke to drive the upper mold core to open the cavity.

[0009] Furthermore, the locking assembly includes a locking portion arranged on the lower mold plate, and an unlocking portion fixed on the upper mold plate, the locking portion extends toward the upper mold group and engages on the secondary casting plate to prevent the secondary casting plate from moving away from the lower mold group, the unlocking portion extends toward the lower mold group and slides toward the locking portion in the first mold opening stroke, and the unlocking portion actuates the locking portion to leave the secondary casting plate in the second mold opening stroke.

[0010] Furthermore, the locking assembly includes a locking rod and an unlocking rod that are adjacent to each other, the locking portion is arranged at the free end of the locking rod, the unlocking portion is arranged at the free end of the unlocking rod, the locking portion has a guide matching portion extending toward the locking rod, the unlocking rod slides relative to the guide matching portion, and presses the guide matching portion away from the secondary casting plate.

[0011] Furthermore, the unlocking portion is provided with guiding inclined surfaces on both the mold opening direction side and the mold closing direction side, and the unlocking portion is provided with a guiding matching inclined surface matching with the guiding inclined surface.

[0012] Furthermore, the upper mold assembly and the lower mold assembly are provided with external guide rods arranged along the mold opening direction, and the secondary casting plate and the lower mold plate are provided with fixed guide blocks, and the guide rods are inserted into the fixed guide blocks.

[0013] Furthermore, the locking assembly also includes a swivel seat arranged on the lower template, the fixed end of the locking rod is rotatably arranged on the swivel seat, and a spring is also provided between the fixed end of the locking rod and the lower template, and the spring is located on the side of the rotation axis of the locking rod away from the secondary casting plate.

[0014] Furthermore, the limiting column is fixed on the upper template and penetrates the lower template. The bottom end of the limiting column is provided with a radially extending transmission block. The secondary casting plate is provided with a guide sleeve for the limiting column to pass through. The inner diameter of the guide sleeve is smaller than the outer diameter of the limiting column.

[0015] Furthermore, a plurality of forming grooves are provided between the secondary casting plate and the lower mold plate, and two oppositely arranged side forming blocks are provided in each forming groove. A plurality of upper mold cores and lower mold cores are arranged between the side forming blocks. The side forming blocks, the upper mold cores and the lower mold cores are closed to form a mold cavity, and the side forming blocks are connected to the secondary casting plate through a diagonal tie rod.

[0016] Furthermore, a pouring block is provided between two adjacent cavities, and a lower feed channel connected to the two adjacent cavities is provided on the pouring block, and the lower feed channel is connected to the lower pouring channel.

[0017] Furthermore, the upper mold plate is provided with a plurality of distribution cavities connected to the pouring pipe, the bottom of the distribution cavity is connected with a first section whose diameter gradually decreases along the discharge direction, and a second section whose diameter gradually increases, the second section is connected to the longitudinal side of the horizontal and vertical intersection of the upper pouring channel, and the horizontal sides of the horizontal and vertical intersection of the upper pouring channel are provided with upper feed channels respectively connected to the lower feed channel.

[0018] Compared with the prior art, the utility model has the following advantages and beneficial effects: In the utility model, the pouring material passing through the pouring pipe is diverted by setting a primary pouring plate and a secondary pouring plate, ensuring that the pouring material enters multiple cavities evenly and stably, and the mold opening stroke of the primary pouring plate and the secondary pouring plate is limited by a locking component. In the first mold opening stroke, the primary pouring plate is separated from the secondary pouring plate. At this time, the unlocking part on the upper mold group slides relative to the locking part constrained on the secondary pouring plate, and the secondary pouring plate is kept in a closed position by the locking part. After the primary pouring plate completes the mold opening action, it enters the second mold opening stroke. At this time, the limiting column in the upper mold group drives the secondary pouring plate, and the unlocking part actuates the locking part, so that the secondary pouring plate is unlocked. At the same time, the secondary pouring plate is driven by the upper mold core to perform the demolding action, thereby completing the secondary demolding of the gate molding and the product, and playing a role in heat preservation and pressure maintenance for the finished product transferor in the cavity, thereby ensuring the molding quality of the transferor. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0020] Figure 2 It is an exploded schematic diagram of the upper die set of the utility model;

[0021] Figure 3 It is an exploded schematic diagram of the secondary casting plate and the lower formwork of the utility model;

[0022] Figure 4 It is an exploded schematic diagram of the secondary pouring plate and the lower formwork of the utility model from another angle;

[0023] Figure 5 It is a cross-sectional view of the molding groove of the utility model;

[0024] Figure 6 It is a cross-sectional view of the material distribution cavity and the material conveying channel of the utility model;

[0025] Figure 7 It is a cross-sectional view of the pouring channel of the utility model;

[0026] Figure 8 It is a cross-sectional view of the inclined tie rod of the utility model;

[0027] Fig. 9 It is a cross-sectional view of the limiting column of the utility model;

[0028] Fig.10 It is a schematic diagram of the cooperation between the locking part and the secondary casting plate of the utility model;

[0029] Fig.11 It is a schematic diagram of the locking part and the unlocking part of the utility model;

[0030] Fig.12 for Figure 4 The enlarged view of point A in the middle;

[0031] In the figure: 1, upper template; 1.1, material distribution cavity; 1.2, first section; 1.3, second section;

[0032] 2. First-level pouring plate;

[0033] 3. Secondary pouring plate; 3.1. Upper pouring channel; 3.2. Lower pouring channel; 3.21. Upper feed channel; 3.22. Lower feed channel; 3.23. Casting block; 3.3. Guide sleeve;

[0034] 4. Upper mold core; 5. Lower mold plate; 6. Lower mold core; 7. Side forming block; 8. Diagonal tie rod; 9. Cavity; 10. Casting pipe; 11. Limiting column; 11.1. Transmission block;

[0035] 12. Locking assembly; 12.1. Locking rod; 12.11. Locking portion; 12.12. Guide matching portion; 12.13. Guide inclined surface; 12.2. Unlocking rod; 12.21. Guide matching inclined surface; 12.3. Rotating seat; 12.4. Spring;

[0036] 13. Guide rod; 14. Fixed guide block; 15. Forming groove; DETAILED DESCRIPTION

[0037] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0038] It should be understood that although the terms upper, middle, lower, top, end, etc. appear in this article to describe various elements, these elements are not limited by these terms. These terms are only used to distinguish elements from each other for easy understanding, and are not used to define any direction or order limitation.

[0039] like Figure 1-12As shown, a mold of a medical transfer device includes an upper mold group and a lower mold group, wherein the upper mold group includes an upper mold plate 1, a primary pouring plate 2 and a secondary pouring plate 3 sequentially arranged at the bottom of the upper mold plate 1, and a plurality of upper mold cores 4 driven by the secondary pouring plate 3, wherein the primary pouring plate 2 is fixed on the upper mold plate 1, and the secondary pouring plate 3 and the primary pouring plate 2 are openable;

[0040] The lower die set includes a lower die plate 5 and a plurality of lower die cores 6 arranged on the lower die plate 5. The upper die core 4 and the lower die core 6 are closed to form a plurality of cavities 9.

[0041] like Figures 3 to 6 As shown, the primary pouring plate 2 is connected to a pouring pipe 10, and the primary pouring plate 2 and the secondary pouring plate 3 are closed to form a plurality of upper pouring channels 3.1 connected in horizontal and vertical directions, and the secondary pouring plate 3 and the upper mold core 4 are closed to form a plurality of lower pouring channels 3.2 connected to the mold cavity 9, and the pouring pipe 10 is connected to the upper pouring channels 3.1 and the lower pouring channels 3.2, and the lower pouring channels 3.2 are connected in horizontal and vertical directions on the horizontal plane, and are vertically connected to the mold cavity 9 on the vertical plane;

[0042] like Figures 9 to 11 As shown, it also includes a locking assembly 12 connected between the upper die assembly and the lower die assembly and a limiting column 11 fixed in the upper die assembly, and the upper die assembly is provided with a first mold opening stroke and a second mold opening stroke, the primary casting plate 2 is away from the secondary casting plate 3 in any mold opening stroke, the secondary casting plate 3 is constrained by the locking assembly 12 in the first mold opening stroke, and is closed with the lower die assembly to keep the mold cavity 9 closed,

[0043] Among them, the limiting column 11 passes through the lower mold plate 5 from the upper mold plate 1, and passes through the above-mentioned primary casting plate 2 and secondary casting plate 3, so as to guide the mold closing and opening actions. At the same time, the secondary casting plate 3 cooperates with the limiting column 11 in the second mold opening stroke, and is driven by the limiting column 11 away from the lower mold group to drive the upper mold core 4 to open the cavity 9.

[0044] It should be noted that, during the molding process, the press pressure presses the casting material in the primary casting plate 2 into the secondary casting plate 3 and the mold cavity 9, and forms a gate molding on the upper runner 3.1.

[0045] In the utility model, when the mold is opened, the first-level pouring plate 2 is first separated from the second-level pouring plate 3, thereby separating the gate molding part, and leaving the gate molding part on the second-level pouring plate 3. As the second mold opening stroke proceeds, the second-level pouring plate 3 drives the upper mold core 4 to leave the cavity 9, thereby preventing the gate molding part from being directly separated from the mold surface of the finished product transferor and damaging the transferor. In addition, in the first mold opening stroke, the second-level pouring plate 3 keeps the upper mold core 4 closing the cavity 9, providing the cavity 9 with a pressure holding time, so that in the second mold opening stroke, the gate molding part is separated from the finished product transferor by the actuation of the second-level pouring plate 3, thereby reducing the additional pressure holding time of the press and improving the production efficiency of the transferor.

[0046] like Figure 1 and Fig.10 , Fig.11 As shown, as a further embodiment of the locking assembly 12, the locking assembly 12 is arranged on two opposite end surfaces of the mold and arranged left and right on the end surfaces of the mold, specifically comprising a locking rod 12.1 and an unlocking rod 12.2 arranged adjacent to each other, the locking rod 12.1 is fixed on the lower mold plate 5, the unlocking rod 12.2 is fixed on the upper mold plate 1, a locking portion 12.11 is provided on the free end of the locking rod 12.1, an unlocking portion is provided on the free end of the unlocking rod 12.2, and the locking rod 12.1 and the unlocking rod 12.2 are both facing oppositely. The locking portion 12.11 extends toward the upper mold assembly through the locking rod 12.1 and is engaged with the secondary casting plate 3 to prevent the secondary casting plate 3 from moving away from the lower mold assembly in the first mold opening stroke. The unlocking portion extends from the upper mold plate 1 toward the lower mold assembly, so that in the mold closing state, a spacing corresponding to the first mold opening stroke is formed between the locking portion 12.11 and the unlocking portion, the unlocking portion slides toward the locking portion 12.11 in the first mold opening stroke, and the unlocking portion actuates the locking portion 12.11 to leave the secondary casting plate 3 in the second mold opening stroke.

[0047] Specifically, the locking portion 12.11 is rotatably arranged on the lower mold plate 5 and passively embraced on the secondary casting plate 3, and the protruding block of the unlocking portion presses the locking portion 12.11 during the second mold opening stroke, thereby forcing the locking portion 12.11 to move away from the secondary casting plate 3. At this time, the secondary casting plate 3 can be detached.

[0048] As a further embodiment of the cooperation between the locking portion 12.11 and the unlocking portion, the unlocking rod 12.2 is arranged adjacent to the locking rod 12.1, and the locking portion 12.11 has a guide matching portion 12.12 extending toward the unlocking rod 12.2. In the mold opening and closing strokes, the guide matching portion 12.12 presses against the outer surface of the unlocking rod 12.2, and the unlocking rod 12.2 slides relative to the guide matching portion 12.12. In the second mold opening stroke, the unlocking portion presses against the guide matching portion 12.12, thereby making the locking portion 12.11 away from the secondary casting plate 3.

[0049] Specifically, the unlocking part is provided with a guide bevel 12.13 on the mold opening direction side and the mold closing direction side, and the unlocking part is provided with a guide matching bevel 12.21 matching with the guide bevel 12.13. During the mold opening and closing actions, the guide bevel 12.13 is abutted against the guide matching bevel 12.21 to allow the unlocking part to pass over the guide matching part 12.12 on the locking part 12.11.

[0050] In other embodiments, in order to further improve the stability of the mold opening action of the secondary casting plate 3, an external guide rod 13 arranged along the mold opening direction is provided on the outside of the upper mold group and the lower mold group, and a fixed guide block 14 is provided on the secondary casting plate 3 and the lower mold plate 5. The guide rod 13 is passed through the fixed guide block 14, thereby further constraining the movement stroke direction of the secondary casting plate 3 to prevent the gate molding from damaging the finished product transferor.

[0051] As an embodiment of the movable arrangement of the locking rod 12.1, the locking assembly 12 also includes a swivel seat 12.3 arranged on the lower mold plate 5, and the fixed end of the locking rod 12.1 is rotatably arranged on the swivel seat 12.3, and a spring 12.4 is also arranged between the fixed end of the locking rod 12.1 and the lower mold plate 5, and the spring 12.4 is located on the side of the rotation axis of the locking rod 12.1 away from the secondary casting plate 3, and the fixed end of the locking rod 12.1 is forced to be pushed outward by the elastic force of the spring 12.4, and then the locking part 12.11 is forced to embrace the secondary casting plate 3 in the form of a lever, wherein a locking groove for partially inserting the locking part 12.11 is provided on the secondary casting plate 3.

[0052] Continue to refer to Fig. 9 As an implementation method for the limiting column 11 to drive the secondary casting plate 3 to separate from the lower mold core 6, the limiting column 11 is fixed on the upper mold plate 1 and penetrated through the lower mold plate 5. The limiting column 11 is also penetrated through the primary casting plate 2 and the secondary casting plate 3. A radially extending transmission block 11.1 is provided at the bottom end of the limiting column 11. A guide sleeve 3.3 is provided in the secondary casting plate 3 for the limiting column 11 to pass through. The inner diameter of the guide sleeve 3.3 is smaller than the outer diameter of the limiting column 11. In the mold closing state, the transmission block 11.1 is away from the guide sleeve 3.3, and a spacing of the first mold opening stroke is spaced between the transmission block 11.1 and the guide sleeve 3.3. After the second mold opening stroke, the transmission block 11.1 abuts against the bottom of the guide sleeve 3.3 and drags the secondary casting plate 3 away from the mold closing position, thereby driving the upper mold core 4 on the secondary casting plate 3.

[0053] from Figure 5 It can be seen that as a further implementation of the cavity 9, a receiving groove with openings arranged opposite to each other is provided between the secondary casting plate 3 and the lower template 5. In the mold closing state, the secondary casting plate 3 and the lower template 5 are closed, so that the two opposite receiving grooves are closed to form a molding groove 15.

[0054] The receiving grooves are arranged with respect to the contours of the secondary casting plate 3 and the lower mold plate 5. As an example, the number of the forming grooves 15 is four.

[0055] Specifically, each forming groove 15 is provided with two oppositely arranged side forming blocks 7, the two side forming blocks 7 are oppositely arranged on a horizontal plane, and a plurality of vertically relatively closed upper mold cores 4 and lower mold cores 6 are arranged between the two side forming blocks 7, the side forming blocks 7 and the upper mold cores 4 and the lower mold cores 6 are closed to form a cavity 9, and the side forming blocks 7 are connected to the secondary casting plate 3 through the inclined rod 8, so that during the mold opening process, the secondary casting plate 3 drives the side forming blocks 7 to move horizontally through the inclined rod 8, and drives the upper mold core 4 to move vertically away from the lower mold core 6.

[0056] Among them, the upper mold core 4 and the lower mold core 6 are arranged at intervals in the linear direction of the side forming block 7. As an example, between the two side forming blocks 7 in a forming groove 15, four upper mold cores 4 and four lower mold cores 6 are linearly arranged, so that four transfer devices are formed at one time in one forming groove 15.

[0057] like Figure 2 and Figure 6 As shown, as a further implementation of the upper runner 3.1 and the lower runner 3.2, a plurality of distribution cavities 1.1 connected to the pouring pipe 10 are provided on the upper template 1, and the bottom of the distribution cavity 1.1 is connected with a first section 1.2 whose diameter gradually decreases along the discharge direction, and a second section 1.3 whose diameter gradually increases, wherein the distribution cavity 1.1 has a certain depth to accommodate the pouring material, and the pouring material is transported to the first section 1.2 and the second section 1.3 by pressure, thereby completing the preliminary distribution of the material in the distribution cavity 1.1, and the first section 1.2 and the second section 1.3 together constitute a conveying section, and the conveying section is arranged corresponding to the horizontal and vertical intersection of the upper runner 3.1.

[0058] Continue to refer to Figure 6 Specifically, the second section 1.3 is connected to the longitudinal side of the horizontal and vertical intersection of the upper runner 3.1, and the horizontal sides of the horizontal and vertical intersection of the upper runner 3.1 are provided with upper feed channels 3.21 respectively connected to the lower feed channels 3.22.

[0059] like Figure 7 As shown, specifically, a pouring block 3.23 is provided between two adjacent cavities 9, and a lower feed channel 3.22 connected to the two adjacent cavities 9 is provided on the pouring block 3.23, and the lower feed channel 3.22 is connected to the lower pouring channel 3.2, that is, two pouring blocks 3.23 are provided in each molding groove 15, and the pouring block 3.23 and the upper mold core 4 move synchronously with the mold opening action of the secondary pouring plate 3.

[0060] In this embodiment, the upper feed channel 3.21 and the lower feed channel 3.22 together constitute the lower runner 3.2, and are both vertically arranged to allow the pouring material to pass smoothly and evenly, and the diameters of the upper feed channel 3.21 and the lower feed channel 3.22 are both arranged to gradually decrease toward the cavity 9, which is conducive to the separation of the gate molding therein from the finished product transferor as the secondary pouring plate 3 opens the mold.

[0061] Through the above improvements, on the basis of multiple forming grooves 15 between the secondary pouring plate 3 and the lower mold plate 5, multiple material conveying channels are formed on the primary pouring plate 2, multiple upper pouring channels 3.1 that are staggered horizontally and vertically are formed on the secondary pouring plate 3, and multiple lower pouring channels 3.2 that are respectively connected to multiple cavities 9 are formed, so that uniform gate moldings are formed after molding. On the premise of ensuring that multiple finished transferers are produced by one mold closing molding, the first pouring plate 2 and the secondary pouring plate 3 with graded mold opening can prevent the finished transferer from being damaged by the gate molding, and during the mold opening process, a holding time for the transferor in the cavity 9 is provided, thereby ensuring the molding quality of the transferor.

[0062] As a further implementation of the pouring block 3.3, a convex portion inserted into the mold cavity 9 is provided at the bottom of the pouring block 3.3 corresponding to the lower feed channel 3.22, and the opening of the lower runner 3.2 is provided on the convex portion, wherein the diameter of the convex portion gradually decreases, thereby reducing the closing of the convex portion on the finished transferer, which is beneficial to the separation of the gate molding and the molded transferer.

[0063] Among them, the casting block 3.3 and the side forming block together constitute the outer surface of the transfer cavity, the upper mold core is a cylindrical insert that is inserted into the cavity and is used to form the hole in the middle of the transferor, and the lower mold core is a cylindrical seat that constitutes the inner surface of the cavity, thereby constituting the shell of the transferor.

[0064] This specific embodiment is merely an explanation of the present invention and is not a limitation of the present invention. After reading this specification, those skilled in the art may make non-creative modifications to the present embodiment as needed, but such modifications are protected by patent law as long as they are within the scope of the claims of the present invention.

Claims

1. A mold for a medical transfer device, comprising an upper mold set and a lower mold set, characterized in that: The upper mold assembly comprises an upper mold plate (1), a primary pouring plate (2) and a secondary pouring plate (3) sequentially arranged at the bottom of the upper mold plate (1), and a plurality of upper mold cores (4) driven by the secondary pouring plate (3); The lower mold assembly comprises a lower mold plate (5) and a plurality of lower mold cores (6) arranged on the lower mold plate (5); the upper mold core (4) and the lower mold core (6) are closed to form a plurality of mold cavities (9); The primary pouring plate (2) is connected to a pouring pipe (10), and the primary pouring plate (2) and the secondary pouring plate (3) are closed to form a plurality of upper pouring channels (3.1) that are connected horizontally and vertically with respect to a horizontal plane, and the secondary pouring plate (3) and the upper mold core (4) are closed to form a plurality of lower pouring channels (3.2) that are connected to the mold cavity (9), and the lower pouring channels (3.2) are arranged vertically, and the pouring pipe (10) is connected to the upper pouring channels (3.1) and the lower pouring channels (3.2); It also includes a locking component (12) connected between the upper mold group and the lower mold group and a limiting column (11) fixed in the upper mold group, and the upper mold group is provided with a first mold opening stroke and a second mold opening stroke, the primary casting plate (2) is away from the secondary casting plate (3) in any mold opening stroke, the secondary casting plate (3) is constrained by the locking component (12) in the first mold opening stroke, and is closed with the lower mold group and keeps the mold cavity (9) closed, and the secondary casting plate (3) is driven by the limiting column (11) in the second mold opening stroke to move away from the lower mold group, so as to drive the upper mold core (4) to open the mold cavity (9).

2. The mold of a medical transfer device according to claim 1, characterized in that: The locking assembly (12) comprises a locking portion (12.11) arranged on the lower mold plate (5), and an unlocking portion fixed on the upper mold plate (1), wherein the locking portion (12.11) extends toward the upper mold assembly and is engaged with the secondary casting plate (3) to prevent the secondary casting plate (3) from moving away from the lower mold assembly, the unlocking portion extends toward the lower mold assembly and slides toward the locking portion (12.11) in a first mold opening stroke, and the unlocking portion actuates the locking portion (12.11) to leave the secondary casting plate (3) in a second mold opening stroke.

3. The mold of a medical transfer device according to claim 2, characterized in that: The locking assembly (12) comprises a locking rod (12.1) and an unlocking rod (12.2) which are arranged adjacent to each other; the locking portion (12.11) is arranged at the free end of the locking rod (12.1); the unlocking portion is arranged at the free end of the unlocking rod (12.2); the locking portion (12.11) is provided with a guide fitting portion (12.12) extending toward the locking rod (12.1); the unlocking rod (12.2) slides relative to the guide fitting portion (12.12) and presses the guide fitting portion (12.12) away from the secondary casting plate (3).

4. The mold of a medical transfer device according to claim 3, characterized in that: The unlocking part is provided with a guiding inclined surface (12.13) on both the mold opening direction side and the mold closing direction side, and the unlocking part is provided with a guiding matching inclined surface (12.21) matching with the guiding inclined surface (12.13).

5. The mold of a medical transfer device according to claim 1, characterized in that: External guide rods (13) arranged along the mold opening direction are arranged outside the upper mold assembly and the lower mold assembly, and fixed guide blocks (14) are arranged on the secondary casting plate (3) and the lower mold plate (5), and the guide rods (13) are inserted into the fixed guide blocks (14).

6. The mold of a medical transfer device according to claim 3, characterized in that: The locking assembly (12) further comprises a swivel seat (12.3) arranged on the lower template (5), the fixed end of the locking rod (12.1) is rotatably arranged on the swivel seat (12.3), and a spring (12.4) is arranged between the fixed end of the locking rod (12.1) and the lower template (5), and the spring (12.4) is located on a side of the rotation axis of the locking rod (12.1) away from the secondary casting plate (3).

7. The mold of a medical transfer device according to claim 1, characterized in that: The limiting column (11) is fixed on the upper mold plate (1) and is passed through the lower mold plate (5); a radially extending transmission block (11.1) is provided at the bottom end of the limiting column (11); a guide sleeve (3.3) for the limiting column (11) to pass through is provided in the secondary casting plate (3); and the inner diameter of the guide sleeve (3.3) is smaller than the outer diameter of the limiting column (11).

8. The mold of a medical transfer device according to claim 1, characterized in that: A plurality of molding grooves (15) are provided between the secondary casting plate (3) and the lower mold plate (5), and two side molding blocks (7) are provided in each molding groove (15) and are arranged opposite to each other. A plurality of upper mold cores (4) and lower mold cores (6) are arranged between the side molding blocks (7). The side molding blocks (7) are closed with the upper mold cores (4) and the lower mold cores (6) to form a mold cavity (9), and the side molding blocks (7) are connected to the secondary casting plate (3) via a diagonal tie rod (8).

9. The mold of a medical transfer device according to claim 8, characterized in that: A pouring block (3.23) is provided between two adjacent cavities (9), and a lower feed channel (3.22) connected to the two adjacent cavities (9) is provided on the pouring block (3.23), and the lower feed channel (3.22) is connected to the lower pouring channel (3.2).

10. The mold of a medical transfer device according to claim 9, characterized in that: The upper mold plate (1) is provided with a plurality of material distribution cavities (1.1) connected to the pouring pipe (10); the bottom of the material distribution cavity (1.1) is connected with a first section (1.2) whose diameter gradually decreases along the material discharge direction, and a second section (1.3) whose diameter gradually increases; the second section (1.3) is connected to the longitudinal side of the horizontal and vertical intersection of the upper pouring channel (3.1); and the horizontal sides of the horizontal and vertical intersection of the upper pouring channel (3.1) are provided with upper material feed channels (3.21) respectively connected to the lower material feed channels (3.22).

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