Lever type forming ejection mold

Abstract

The utility model relates to a lever type forming ejection mold. The mold comprises a lower molding plate, a lower molding block embedded in the lower molding plate, an upper molding plate arranged above the lower molding plate in a lifting manner, an upper molding block embedded in the upper molding plate, a cavity formed in the bottom of the upper molding block, and a molding runner obliquely formed in the bottom of the upper molding block and communicated with the cavity, the ejector plate is elastically arranged at the bottom of the lower forming plate; the ejector rod is fixed at the top of the ejector plate and penetrates through the lower forming plate; the ejection mechanism is arranged at the bottom of the ejector plate; according to the lever type forming ejection mold, the ejection mechanism is arranged at the bottom of the lower forming plate, after a product is formed, the warping plate is directly driven to rotate through mold opening action during mold opening, then the ejector plate is driven to eject the ejector rod, the product is ejected out through the ejector rod, a machine table does not need to participate in ejection, the ejection action of the machine table is reduced, the ejection time can be shortened, and the production efficiency is improved. Therefore, the purpose of shortening the period is achieved.

Description

Technical Field

[0001] The utility model belongs to the technical field of forming molds, and particularly relates to a lever-type forming and ejecting mold. Background Technique

[0002] A mold is various molds and tools used in industrial production to obtain required products by methods such as injection molding, blow molding, extrusion, die casting, or forging and pressing forming, smelting, stamping, etc. In short, a mold is a tool for making formed articles. This tool is composed of various parts, and different molds are composed of different parts. It mainly realizes the processing of the outer shape of the article by changing the physical state of the formed material. It is known as the "mother of industry".

[0003] Among them, injection molding, also known as injection molding, is a molding method that combines injection and molding. At a certain temperature, the plastic material is completely melted by stirring with a screw and injected into the mold cavity under high pressure. After cooling and solidification, the formed product is obtained. This method is suitable for mass production of complex-shaped parts and is one of the important processing methods.

[0004] After the mold is formed, the formed product needs to be ejected. The existing ejection method is that after the upper template and the lower template are opened, the ejector pin plate in the lower template machine is driven by a lifting cylinder to move, and the product is ejected through the ejector pins on the ejector pin plate.

[0005] The existing mold ejection process is carried out in two steps, namely mold opening + ejection. The product ejection time is long, which prolongs the production cycle of the product. Content of the Utility Model

[0006] The utility model provides a lever-type forming and ejecting mold, which solves the defect that the existing mold ejection process is carried out in two steps, resulting in a long product ejection time and prolonging the production cycle of the product.

[0007] To achieve the above purpose, the technical solution adopted by the utility model is: a lever-type forming and ejecting mold, which includes:

[0008] A lower forming plate, a lower forming block embedded in the lower forming plate, an upper forming plate that can be lifted and lowered above the lower forming plate, an upper forming block embedded in the upper forming plate, a cavity opened at the bottom of the upper forming block, a forming runner inclinedly opened at the bottom of the upper forming block and communicating with the cavity, a second main runner opened at the top of the lower forming plate, second sub-runners integrally connected to both sides of the second main runner, a liquid injection mechanism embedded in the upper forming plate, an ejector pin plate elastically arranged at the bottom of the lower forming plate, ejector rods fixed to the top of the ejector pin plate and penetrating the lower forming plate, and an ejection mechanism arranged at the bottom of the ejector pin plate;

[0009] After the upper forming block and the lower forming block are closed, the liquid injection mechanism is communicated with the second main runner, and the second sub-runner is communicated with the forming runner;

[0010] After the upper forming block and the lower forming block are opened, the ejecting mechanism drives the ejector plate to move to eject the formed product.

[0011] Optimally, it further includes a bottom plate, a first lower template fixed on the top of the bottom plate, a second lower template disposed on the top of the first lower template with adjustable height, an upper template fixed on the top of the upper forming plate, an upper fixing plate fixed on one side of the upper template, a lower fixing plate fixed on one side of the second lower template, and contact blocks fixed on the inner sides of the upper fixing plate and the lower fixing plate and cooperating with each other.

[0012] Optimally, the ejecting mechanism includes a connecting plate groove opened between the bottom plate and the first lower template, a connecting plate fixed on the bottom of the second lower template and passing through the connecting plate groove, a first half groove and a second half groove opened on both sides of the connecting plate groove, and a rocker pivotally connected to the bottom of the connecting plate, and the inner side of the rocker abuts against the bottom of the ejector plate.

[0013] Optimally, the ejecting mechanism further includes a first abutting head integrally connected to the outer side of the rocker and a second abutting head integrally connected to the inner side of the rocker;

[0014] When the connecting plate rises, the rocker rotates so that the second abutting head jacks up the ejector plate.

[0015] Optimally, the liquid injection mechanism includes an upper heat preservation column fixed on the top of the upper template, a first liquid inlet groove penetrating through the upper heat preservation column, a first main runner opened in the upper template and communicated with the first liquid inlet groove, first sub-runners connected to both sides of the first main runner, and a first heating wire wound around the outer side of the upper heat preservation column.

[0016] Optimally, the liquid injection mechanism further includes a feeding column fixed on the top of the upper heat preservation column, a feeding port opened on the top of the feeding column, a first liquid injection groove penetrating through the feeding column and gradually expanding in diameter, a lower heat preservation column embedded in the upper template, a second liquid injection groove and a second liquid inlet groove penetrating through the lower heat preservation column, and a second heating wire wound around the outer side of the lower heat preservation column, and the diameter of the second liquid injection groove gradually shrinks.

[0017] Optimally, the liquid injection mechanism further includes a liquid outlet pipe fixed on the bottom of the lower heat preservation column, an upper liquid outlet groove and a lower liquid outlet groove penetrating through the liquid outlet pipe, and a liquid distribution pipe fixed in the upper liquid outlet groove, and the diameter of the lower liquid outlet groove gradually expands.

[0018] Optimally, the liquid distribution pipe includes a pipe sleeve and a liquid distribution needle arranged coaxially, a connecting portion annularly arranged between the pipe sleeve and the liquid distribution needle, and tapered portions integrally arranged at both ends of the liquid distribution needle.

[0019] Due to the application of the above technical solution, the utility model has the following advantages compared with the prior art:

[0020] In the lever-type forming and ejecting die of the utility model, an ejecting mechanism is arranged at the bottom of the lower forming plate. After the product is formed, when the mold is opened, the opening action is directly used to drive the rocker to rotate, and then the ejector pin plate is driven to lift the ejector rod, and the product is ejected by the ejector rod. There is no need for the machine table to participate in the ejection, reducing the ejection action of the machine table, shortening the ejection time, and thus achieving the purpose of shortening the cycle. Description of the Drawings

[0021] Figure 1 is a schematic structural diagram of the utility model after mold closing;

[0022] Figure 2 is a schematic structural diagram of the utility model after mold opening;

[0023] Figure 3 is a sectional view of the upper half of the utility model Figure 2 ;

[0024] Figure 4 is a sectional view of the upper half of the utility model Figure 3 at A;

[0025] Figure 5 is a schematic structural diagram of a part of the utility model Figure 4 ;

[0026] Figure 6 is a schematic structural diagram of the liquid separation pipe of the utility model;

[0027] Figure 7 is a schematic structural diagram of the lower forming plate of the utility model;

[0028] Figure 8 is a schematic structural diagram of the lower half of the utility model Figure 2 ;

[0029] Figure 9 is a front view of the utility model Figure 8 ;

[0030] Figure 10 is a sectional view of the upper forming block and the lower forming block of the utility model;

[0031] Figure 11 is a sectional view of the utility model when the ejecting mechanism is not lifted;

[0032] Figure 12 is a sectional view of the utility model when the ejecting mechanism is lifted;

[0033] Description of the Reference Numerals:

[0034] 1. Bottom plate; 2. First lower template; 3. Second lower template; 4. Lower forming plate; 5. Upper forming plate; 6. Upper template; 7. Upper heat preservation column; 8. Feeding column; 9. Feeding port; 10. First liquid injection groove; 11. First liquid inlet groove; 12. First heating wire; 13. First main runner; 14. First sub-runner; 15. Lower heat preservation column; 16. Second heating wire; 17. Second liquid injection groove; 18. Second liquid inlet groove; 19. Liquid outlet pipe; 20. Upper liquid outlet groove; 21. Lower liquid outlet groove; 22. Liquid distribution pipe; 221. Pipe sleeve; 222. Liquid distribution needle; 223. Connection part; 224. Cone part; 23. Second main runner; 24. Second sub-runner; 25. Cold slug well; 26. Upper forming block; 27. Lower forming block; 28. Cavity; 29. Forming runner; 30. Upper fixing plate; 31. Lower fixing plate; 32. Contact block; 33. Ejector plate; 34. Ejector rod; 35. Link plate groove; 36. Link plate; 37. Lever; 38. First half groove; 39. Second half groove; 40. First abutting head; 41. Second abutting head; 42. Guide post; 43. Limit head. Detailed implementation manners

[0035] The present utility model will be further described below in conjunction with the embodiments shown in the drawings.

[0036] As Figure 1 shown, it is a schematic diagram of the mold closing state of the lever-type forming and ejecting mold of the present utility model, Figure 2 and it is a schematic diagram of the mold opening state of the lever-type forming and ejecting mold of the present utility model. The forming mold includes a bottom plate 1, a first lower template 2, a second lower template 3, a lower forming plate 4, an upper forming plate 5, an upper template 6, an upper forming block 26, a lower forming block 27, a liquid injection mechanism and an ejecting mechanism. The liquid injection mechanism injects molten rubber material into the mold, so as to form in the cavity 28 between the upper forming block 26 and the lower forming block 27. After cooling and pressure holding, during the mold opening process, it drives the ejecting mechanism to eject the formed product.

[0037] The bottom plate 1 is fixed on the injection molding machine table by means of screw fastening. The first lower template 2 is fixed on the top of the bottom plate 1 by means of screw fastening. The second lower template 3 is arranged on the top of the first lower template 2. The guide post 42 is fixed in the first lower template 2 and penetrates through the second lower template 3. The limit head 43 is integrally connected to the top of the guide post 42 and the diameter of the limit head 43 is larger than that of the guide post 42, which is used to limit the rising second lower template 3.

[0038] After the product is injection molded and cooled, it is mold opened under the drive of an external driving mechanism (such as a jacking cylinder). At this time, with the cooperation of the contact block 32, the second lower template 3 will be driven to synchronously rise to contact with the limit head 43. At the same time, it drives the ejecting mechanism to lift the ejector plate 33, and the ejector rod 34 at the top of the ejector plate 33 ejects the formed product.

[0039] The guide post is fixed within the first lower template 2, and the lower guide sleeve is embedded within the second lower template 3. The guide post passes through the lower guide sleeve. Relying on the cooperation of the guide post and the lower guide sleeve, the lifting movement of the second lower template 3 is guided, thereby improving the effect of ejecting the formed product.

[0040] The upper guide sleeve is embedded within the upper template 6, and the upper template 6 is connected to an external driving mechanism. During mold opening or closing, the upper guide sleeve will fit over the guide post, thereby improving the positional accuracy of the upper template 6 during mold opening or closing and enhancing the accuracy of product forming.

[0041] The lower forming plate 4 is disposed at the top of the second lower template 3. The screw rod is fixed on the bottom plate 1 and passes through the first lower template 2, the second lower template 3, and the ejector plate 33, and is fixed at the bottom of the lower forming plate 4. There is no contact between the screw rod and the first lower template 2, the second lower template 3, and the ejector plate 33. Therefore, when the ejector plate 33 and the second lower template 3 move, the lower forming plate 4 remains stationary.

[0042] The upper forming plate 5 is fixed to the bottom of the upper template 6 and cooperates with the lower forming plate 4. The upper forming block 26 is embedded within the upper forming plate 5, and the lower forming block 27 is embedded within the lower forming plate 4 and cooperates with the upper forming block 26. As Figure 10 shown, the shape of the required product is formed. The mold shown in the drawing is an eight-cavity mold, that is, a set of molds can form eight products in a single shot.

[0043] The liquid injection mechanism is embedded within the upper template 6 and the upper forming plate 5. The externally melted material flows into the cavity 28 through the liquid injection mechanism. As Figures 3 - 5 shown, the liquid injection mechanism includes an upper heat preservation column 7, a feeding column 8, a feeding port 9, a first liquid injection groove 10, a first liquid inlet groove 11, a first heating wire 12, a first main runner 13, a first sub-runner 14, a lower heat preservation column 15, a second heating wire 16, a second liquid injection groove 17, a second liquid inlet groove 18, a liquid outlet pipe 19, an upper liquid outlet groove 20, a lower liquid outlet groove 21, and a liquid distribution pipe 22. The upper heat preservation column 7 is fixed to the top of the upper template 6. The first liquid inlet groove 11 vertically penetrates the upper heat preservation column 7, and the externally melted material flows into the upper forming plate 5 through the first liquid inlet groove 11. The first heating wire 12 is wound around the outer peripheral surface of the upper heat preservation column 7 to prevent the material from cooling and blocking the runner or affecting the product forming effect during material flow.

[0044] The feeding column 8 is fixed to the side of the upper heat preservation column 7 away from the upper template 6. The feeding port 9 is opened on the side of the feeding column 8 away from the upper heat preservation column 7. The feeding port 9 is bowl-shaped. When injecting the melted material, the necking design of the feeding port 9 is used to prevent the material from splashing, resulting in waste of raw materials or scalding the surrounding staff.

[0045] The first liquid injection tank 10 penetrates through the feeding column 8 and has a gradually expanding diameter. The first liquid injection tank 10 is used to connect the feeding port 9 and the first liquid inlet tank 11. The design of the gradually expanding diameter can facilitate the rapid inflow of materials into the first liquid inlet tank 11 and prevent the materials from accumulating at the feeding port 9.

[0046] The first main flow channel 13 is opened in the upper template 6 and is connected to the first liquid inlet tank 11. The second main flow channel 23 is integrally connected to both sides of the first main flow channel 13. Dividing the first main flow channel 13 into two first sub-flow channels 14 can shorten the time for the materials to flow into the cavity 28 and improve the injection efficiency of the product.

[0047] The lower heat preservation column 15 is embedded in the upper template 6. A connected second liquid injection tank 17 and second liquid inlet tank 18 are opened in the lower heat preservation column 15. The first sub-flow channel 14 is connected to the second liquid injection tank 17 and the diameter of the second liquid injection tank 17 gradually decreases. Due to the decreasing diameter of the second liquid injection tank 17, the flow rate of the materials flowing through the second liquid injection tank 17 will increase, enabling them to enter the second liquid inlet tank 18 as soon as possible. Moreover, the gradually decreasing diameter of the second liquid injection tank 17 can ensure that the materials are more fully filled in the second liquid inlet tank 18, avoiding the generation of air holes due to material shortage during injection molding. The second heating wire 16 is wound around the outer peripheral surface of the lower heat preservation column 15 to keep the materials in the second liquid inlet tank 18 warm, preventing the materials from cooling and blocking the flow channel or affecting the molding effect of the product.

[0048] The liquid outlet pipe 19 is fixed at the bottom of the lower heat preservation column 15. The upper liquid outlet tank 20 is opened at the top of the liquid outlet pipe 19, and the lower liquid outlet tank 21 is opened at the bottom of the liquid outlet pipe 19 and is connected to the upper liquid outlet tank 20. The liquid distribution pipe 22 is fixed in the upper liquid outlet tank 20. The liquid distribution pipe 22 separates the molten materials in the second liquid inlet tank 18, and then the separated materials are mixed at the bottom of the upper liquid outlet tank 20 and finally discharged through the lower liquid outlet tank 21. The diameter of the lower liquid outlet tank 21 gradually expands, facilitating the rapid flow of the materials towards the second main flow channel 23.

[0049] As Figure 6 shown, the liquid distribution pipe 22 includes a pipe sleeve 221, a liquid distribution needle 222, a connecting portion 223, and a tapered portion 224. The pipe sleeve 221 is annular and coaxially arranged with the liquid distribution needle 222. The connecting portion 223 is annularly arranged between the liquid distribution needle 222 and the pipe sleeve 221 and is used to connect the liquid distribution needle 222 and the pipe sleeve 221. The tapered portion 224 is integrally provided at the top and bottom of the liquid distribution needle 222. The tapered portion 224 at the top of the liquid distribution needle 222 is used to separate the molten materials in the second liquid inlet tank 18. After separation, the volume of the materials is smaller, so they are heated faster under the action of the second heating wire 16 and are recombined together through the tapered portion 224 at the bottom of the liquid distribution needle 222, and finally flow towards the second main flow channel 23 through the lower liquid outlet tank 21.

[0050] By setting the liquid separation pipe 22, large-volume materials can be separated. The separated materials are heated separately and then fused together to avoid uneven heating of the large-volume materials, which may cause the inner-layer materials to cool and affect the molding and injection of the materials.

[0051] As Figure 7 shown, the second main runner 23 is opened at the top of the lower molding plate 4, and the second sub-runners 24 are integrally connected to both sides of the second main runner 23. The cold slug well 25 is provided at both ends of the second main runner 23. The main function of the cold slug well 25 is to store the small part of relatively low-temperature plastic material that enters the mold first, and to collect the cold slugs generated during the plastic injection molding process. These cold slugs are usually formed due to the temperature drop of the plastic at the front end of the mold. If there is no suitable cold slug well 25 to receive this part of the material, it may enter the main body of the product, causing defects. In addition, the cold slug well 25 is also used to prevent cold slugs from entering the cavity 28 and affecting the quality of the plastic part, and to enable the molten material to smoothly fill the cavity 28.

[0052] As Figure 10 shown, after the upper molding plate 5 and the lower molding plate 4 are clamped, a cavity 28 is formed between the upper molding block 26 and the lower molding block 27, and the molten material is injected into the cavity 28 to form a product. The molding runner 29 is inclined and opened at the bottom of the upper molding block 26. The higher part of the molding runner 29 is connected to the cavity 28, and the lower part of the molding runner 29 is connected to the second sub-runner 24. During molding, the molten material is injected from low to high, thereby improving the filling degree of the material, increasing the qualified rate of the molded product, and avoiding the situation of material shortage.

[0053] As Figure 2 shown, the upper fixing plate 30 is fixed on the outside of the upper template 6, the lower fixing plate 31 is fixed on the outside of the second lower template 3, and contact blocks 32 are fixed on the inner sides of the upper fixing plate 30 and the lower fixing plate 31. The upper fixing plate 30 and the contact block 32 form a "T" - shaped structure, and the lower fixing plate 31 and the contact block 32 also form a "T" - shaped structure. When the upper template 6 is opened by an external driving mechanism, the two contact blocks 32 are engaged with each other, driving the second lower template 3 to be synchronously lifted until it contacts the limit head 43. At the same time, the ejector mechanism is driven to lift the ejector plate 33, and the molded product is ejected by the ejector rod 34 at the top of the ejector plate 33.

[0054] The ejector plate 33 is elastically arranged at the bottom of the lower molding plate 4 through a spring. The ejector rod 34 is fixed at the top of the ejector plate 33 and penetrates through the lower molding plate 4. When the ejector mechanism moves, it drives the ejector plate 33 to move toward the side close to the lower molding plate 4, and then the molded product is ejected by the ejector rod 34. When the ejector mechanism resets, the ejector plate 33 also resets under the action of the spring.

[0055] As Figure 8 、 9, as shown in FIGS. 11 and 12, the ejection mechanism includes a connecting plate groove 35, a connecting plate 36, a rocker 37, a first half groove 38, a second half groove 39, a first abutting head 40 and a second abutting head 41. The connecting plate groove 35 is formed in the bottom plate 1 and the first lower template 2, and the connecting plate 36 is fixed to the bottom of the second lower template 3 and passes through the connecting plate groove 35.

[0056] The first half groove 38 is formed on one side of the connecting plate groove 35, and the second half groove 39 is formed on the other side of the connecting plate groove 35. The rocker 37 is rotatably connected to the bottom of the connecting plate 36 through a pivot and is placed in the first half groove 38 and the second half groove 39 (the depth of the second half groove 39 is greater than that of the first half groove 38 to ensure that the connecting plate 36 has a space for rotation to lift the ejector plate 33, so as to lift the molded product).

[0057] The first abutting head 40 is integrally connected to one side of the rocker 37, and the second abutting head 41 is integrally connected to the other side of the rocker 37 and abuts against the bottom of the ejector plate 33. As Figure 11 , 12 shown, when the connecting plate 36 rises, it drives the rocker 37 to rotate, and then the second abutting head 41 lifts the ejector plate 33, and then the ejector rod 34 ejects the molded product.

[0058] In the lever-type molding ejection mold of the present invention, by arranging an ejection mechanism at the bottom of the lower molding plate 4, after the product is molded, when the mold is opened, the opening action is directly used to drive the rocker 37 to rotate, and then drive the ejector plate 33 to lift the ejector rod 34, and the ejector rod 34 ejects the product. It does not require the machine table to participate in the ejection, reduces the ejection action of the machine table, can shorten the ejection time, and thus achieves the purpose of shortening the cycle.

[0059] The above embodiments are only used to illustrate the technical concept and characteristics of the present invention, and the purpose is to enable those skilled in the art to understand the content of the present invention and implement it accordingly. It cannot be used to limit the protection scope of the present invention. Any equivalent changes or modifications made according to the spirit of the present invention should be covered within the protection scope of the present invention.

Claims

1. A lever type molding ejection mold, characterized in that: It includes: A lower molding plate (4), a lower molding block (27) embedded in the lower molding plate (4), an upper molding plate (5) movably arranged above the lower molding plate (4), an upper molding block (26) embedded in the upper molding plate (5), a molding cavity (28) provided at the bottom of the upper molding block (26), a molding flow channel (29) obliquely provided at the bottom of the upper molding block (26) and connected to the molding cavity (28), a second main flow channel (23) provided at the top of the lower molding plate (4), a second secondary flow channel (24) integrally connected to both sides of the second main flow channel (23), an injection mechanism embedded in the upper molding plate (5), an ejector plate (33) elastically provided at the bottom of the lower molding plate (4), an ejector rod (34) fixed at the top of the ejector plate (33) and passing through the lower molding plate (4), and an ejection mechanism provided at the bottom of the ejector plate (33); When the upper molding block (26) and the lower molding block (27) are molded together, the injection mechanism is connected to the second main flow channel (23), and the second secondary flow channel (24) is connected to the molding flow channel (29); After the upper molding block (26) and the lower molding block (27) are opened, the ejection mechanism drives the ejector plate (33) to move to eject the molded product.

2. A lever-type molding ejection mold according to claim 1, characterized in that: It also includes a base plate (1), a first lower template (2) fixed on the top of the base plate (1), a second lower template (3) arranged on the top of the first lower template (2) in a height-adjustable manner, an upper template (6) fixed on the top of the upper molding plate (5), an upper fixing plate (30) fixed on one side of the upper template (6), a lower fixing plate (31) fixed on one side of the second lower template (3), and a contact block (32) fixed on the inner sides of the upper fixing plate (30) and the lower fixing plate (31) and matched with each other.

3. A lever-type molding ejection mold according to claim 2, characterized in that: The ejection mechanism comprises a connecting plate groove (35) provided between the bottom plate (1) and the first lower template (2), a connecting plate (36) fixed to the bottom of the second lower template (3) and inserted into the connecting plate groove (35), a first half groove (38) and a second half groove (39) provided on both sides of the connecting plate groove (35), and a seesaw (37) pivotally connected to the bottom of the connecting plate (36), wherein the inner side of the seesaw (37) abuts against the bottom of the ejector plate (33).

4. A lever-type molding ejection mold according to claim 3, characterized in that: The ejection mechanism further comprises a first abutment head (40) integrally connected to the outside of the seesaw (37) and a second abutment head (41) integrally connected to the inside of the seesaw (37); When the link plate (36) rises, the seesaw plate (37) rotates so that the second abutment head (41) lifts the ejector plate (33).

5. The lever-type molding ejection mold according to claim 2, characterized in that: The liquid injection mechanism comprises an upper insulation column (7) fixed on the top of the upper mold plate (6), a first liquid inlet groove (11) penetrating the upper insulation column (7), a first main flow channel (13) opened in the upper mold plate (6) and connected to the first liquid inlet groove (11), a first secondary flow channel (14) connected to both sides of the first main flow channel (13), and a first heating wire (12) wound around the outside of the upper insulation column (7).

6. A lever type molding ejection mold according to claim 5, characterized in that: The liquid injection mechanism also includes a feeding column (8) fixed on the top of the upper insulation column (7), a feeding port (9) opened on the top of the feeding column (8), a first liquid injection groove (10) penetrating the feeding column (8) and gradually expanding in diameter, a lower insulation column (15) embedded in the upper template (6), a second liquid injection groove (17) penetrating the lower insulation column (15) and a second liquid inlet groove (18), and a second heating wire (16) wound around the outside of the lower insulation column (15), wherein the diameter of the second liquid injection groove (17) gradually decreases.

7. A lever type molding ejection mold according to claim 6, characterized in that: The liquid injection mechanism further comprises a liquid outlet pipe (19) fixed at the bottom of the lower heat-insulating column (15), an upper liquid outlet trough (20) and a lower liquid outlet trough (21) penetrating the liquid outlet pipe (19), and a liquid distribution pipe (22) fixed in the upper liquid outlet trough (20), wherein the diameter of the lower liquid outlet trough (21) gradually expands.

8. The lever-type molding ejection mold according to claim 7, characterized in that: The liquid dispensing tube (22) comprises a tube sleeve (221) and a liquid dispensing needle (222) which are coaxially arranged, a connecting portion (223) arranged in an annular manner between the tube sleeve (221) and the liquid dispensing needle (222), and cone portions (224) which are integrally arranged at both ends of the liquid dispensing needle (222).

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