Cream box injection mold for ejecting and stripping through inclined air cylinder

Abstract

The utility model discloses a cream box injection mold for ejecting and stripping by using an inclined cylinder. The cream box injection mold comprises a front mold and a rear mold, a rear mold; the front mold cores are arranged in the movable grooves in a sliding manner, and guide grooves are obliquely formed in the side surfaces of the front mold cores; a splicing block is arranged on the rear mold core, the splicing block is closed on the splicing cavity, a plurality of injection molding cavities are formed in the rear mold core, and a molding surface is arranged at the top of each injection molding cavity; the linkage block and the rear mold core are positioned on the rear mold, a guide block is obliquely arranged on the side face of the linkage block, and the guide block is in sliding butt joint with the guide groove; and the angle ejector mechanism is obliquely arranged on the positioning groove and comprises a driving device and an angle ejector rod, the angle ejector rod extends into the splicing cavity through the stepped positioning hole, and the top end of the angle ejector rod, the splicing cavity, the injection molding cavity and the forming face are closed to form a forming cavity matched with the cream box. According to the injection mold, the problems of demolding resistance and large damage to a product when the existing injection mold is used can be solved.

Description

Technical Field

[0001] This utility model relates to the field of injection mold technology, specifically to an injection mold for cream box that uses a slanted cylinder to eject and remove material. Background Technology

[0002] The production of plastic cosmetic packaging products, such as cream boxes, mostly employs plastic manufacturing methods such as injection molding, thermoforming, and blow molding. Among these, existing injection molds present significant demolding resistance and cause considerable damage to the product, especially for products with unique shapes. Utility Model Content

[0003] The purpose of this invention is to provide a cream box injection mold that uses an inclined cylinder for ejection and material removal, in order to solve the problems of demolding resistance and significant damage to products caused by existing injection molds.

[0004] To achieve the above objectives, this utility model adopts the following technical solution: a cream box injection mold using an inclined cylinder for ejecting and removing material, comprising:

[0005] Front mold;

[0006] Rear mold;

[0007] Several front mold cores are slidably disposed in the movable groove of the front mold, and guide grooves are obliquely arranged on their sides.

[0008] The rear mold core has an assembly block on it, which closes on the assembly cavity of the front mold core. Several injection cavities are provided on it, and the top of the injection cavity is provided with a molding surface. Microholes communicating with the injection nozzle are provided on the molding surface.

[0009] A linkage block is positioned on the rear mold along with the rear mold core. Guide blocks are obliquely arranged on the side of the linkage block, and the guide blocks are slidably connected to the guide groove.

[0010] An inclined ejector mechanism is inclinedly arranged on the positioning groove at the bottom of the movable groove. It includes a driving device and an inclined ejector rod telescopically arranged on the driving device. The inclined ejector rod extends into the assembly cavity through a stepped positioning hole on the front mold core. Its top end closes with the assembly cavity, injection cavity, and molding surface to form a molding cavity that matches the cream box.

[0011] As a further description of the above technical solution:

[0012] The movable groove is provided with several sliding strips that slide and engage with the sliding grooves on the surface of the front mold core.

[0013] As a further description of the above technical solution:

[0014] At least two front mold cores are provided, and their opposite sides are joined together.

[0015] As a further description of the above technical solution:

[0016] The sides of the assembly cavity and assembly block are wedge-shaped.

[0017] As a further description of the above technical solution:

[0018] Both the guide block and the guide groove have a T-shaped cross-section.

[0019] As a further description of the above technical solution:

[0020] The horizontal cross-sectional dimensions of the injection cavity gradually decrease from bottom to top.

[0021] As a further description of the above technical solution:

[0022] The horizontal cross-sectional dimension of the top of the inclined rod gradually decreases from bottom to top.

[0023] In summary, by adopting the above technical solution, this utility model has the following advantages over the prior art:

[0024] Beneficial effects:

[0025] The injection mold of this utility model uses a linkage block to tilt and slide the front mold cores together, so as to realize the closure between each front mold core and between each front mold core and the rear mold core when the mold is closed, and the lateral movement of each front mold core for demolding when the mold is opened. During demolding, the cream box can be conveniently discharged and demolded without damage by the telescopic cooperation of the inclined ejector rod that sinks into the front mold core. Based on the special shape of the cream box, the structural design of the injection cavity, the top of the inclined ejector rod, and the assembly cavity and assembly block can reduce the contact time between the cream box and the mold during demolding, so as to reduce demolding resistance and demolding damage. Attached Figure Description

[0026] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0027] Figure 1 This is a schematic diagram of the structure of an injection mold for a cream box that uses an inclined cylinder to eject and remove material.

[0028] Figure 2 This is a schematic diagram of the front mold in an injection mold for a cream box that uses a slanted cylinder to eject and remove material.

[0029] Figure 3 This is a schematic diagram of the rear mold in an injection mold for a cream box that uses an inclined cylinder for ejection and material removal.

[0030] Figure 4 This is a partial sectional view of an injection mold for a cream box that uses an inclined cylinder to eject and remove material.

[0031] Figure 5 This is a schematic diagram of the rear mold core in an injection mold for a cream box that uses an inclined cylinder for ejection and material removal.

[0032] Figure 6 This is a schematic diagram of the front mold core and the inclined ejector mechanism in an injection mold for a cream box that uses an inclined cylinder for ejection and material removal.

[0033] Legend:

[0034] 1. Front mold; 11. Movable groove; 12. Positioning groove; 2. Rear mold; 21. Injection nozzle; 3. Front mold core; 31. Assembly cavity; 32. Stepped positioning hole; 33. Guide groove; 4. Rear mold core; 41. Assembly block; 42. Injection cavity; 43. Molding surface; 5. Linkage block; 51. Guide block; 6. Angled ejector mechanism; 61. Angled ejector rod; 100. Cream box. Detailed Implementation

[0035] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present utility model.

[0036] In the description of this utility model, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0037] Please see Figure 1-6 This utility model provides a technical solution: a cream box injection mold using an inclined cylinder for ejecting and removing material, comprising:

[0038] Front mold 1;

[0039] Rear mold 2;

[0040] Several front mold cores 3 are slidably disposed in the movable groove 11 of the front mold 1, and guide grooves 33 are obliquely arranged on their sides.

[0041] The rear mold core 4 has an assembly block 41 on it. The assembly block 41 closes on the assembly cavity 31 of the front mold core 3. Several injection cavities 42 are provided on it. The top of the injection cavity 42 is provided with a molding surface 43. The molding surface 43 is provided with microholes that communicate with the injection nozzle 21.

[0042] Linkage block 5, which is positioned on the rear mold 2 along with the rear mold core 4, has guide block 51 obliquely arranged on the side of the linkage block 5, and the guide block 51 is slidably connected with the guide groove 33.

[0043] The inclined ejector mechanism 6 is inclinedly arranged on the positioning groove 12 at the bottom of the movable groove 11. It includes a driving device and an inclined ejector rod 61 telescopically arranged on the driving device. The inclined ejector rod 61 extends into the assembly cavity 31 through the stepped positioning hole 32 on the front mold core 3. Its top end closes with the assembly cavity 31, the injection cavity 42, and the molding surface 43 to form a molding cavity that matches the cream box 100.

[0044] The movable groove 11 is provided with a number of sliding strips that slide and engage with the sliding grooves on the surface of the front mold core 3.

[0045] At least two front mold cores 3 are provided, and their opposite sides are joined together.

[0046] The sides of the assembly cavity 31 and the assembly block 41 are wedge-shaped to ensure that the mold is tightly closed and that there is no excess sprue material on the outside of the molding cavity after the cream box 100 is formed.

[0047] Both the guide block 51 and the guide groove 33 have T-shaped cross sections.

[0048] The horizontal cross-sectional dimension of the injection cavity 42 gradually decreases from bottom to top. The horizontal cross-sectional dimension of the top end of the inclined ejector rod 61 also gradually decreases from bottom to top. This design reduces the contact time between the mold and the front and rear mold cores when the cream box 100 is formed, the mold opens, and the cream box 100 is demolded, thereby reducing mold opening resistance and demolding damage.

[0049] The working principle of a cream box injection mold using a slanted cylinder for ejection and demolding in this embodiment includes: During use, the front and rear molds are closed, the guide groove 33 of the front mold core 3 and the guide block 51 of the linkage block 5 are inclined and slidably connected, and during the mold closing process, several front mold cores 3 are pressed inward and spliced ​​together. The spliced ​​front mold cores are spliced ​​together with the rear mold core 4, so that the top of the slanted ejector rod 61 closes with the splicing cavity 31, the injection cavity 42 and the molding surface 43 to form a molding cavity that matches the cream box 100. The slurry can then be injected into the molding cavity through the injection nozzle 21 through the micro-hole. After the cream box 100 is shaped, the mold is opened, the front and rear mold cores are separated, and the linkage block 5 pulls the front mold cores 3 laterally to separate each front mold core 3. During this period, the slanted ejector rod 61 is tilted to achieve demolding of the cream box 100 without damage.

[0050] In summary, due to the adoption of the above technical solution, the cream box injection mold using a slanted cylinder for ejection and material removal in this embodiment has the following advantages compared to the prior art:

[0051] The injection mold of this utility model uses a linkage block to tilt and slide the front mold cores together, so as to realize the closure between each front mold core and between each front mold core and the rear mold core when the mold is closed, and the lateral movement of each front mold core for demolding when the mold is opened. During demolding, the cream box can be conveniently discharged and demolded without damage by the telescopic cooperation of the inclined ejector rod that sinks into the front mold core. Based on the special shape of the cream box, the structural design of the injection cavity, the top of the inclined ejector rod, and the assembly cavity and assembly block can reduce the contact time between the cream box and the mold during demolding, so as to reduce demolding resistance and demolding damage.

[0052] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A cream box injection mold using a slanted cylinder for ejecting and removing material, characterized in that, include: Front mold; Rear mold; Several front mold cores are slidably disposed in the movable groove of the front mold, and guide grooves are obliquely arranged on their sides. The rear mold core has an assembly block on it, which closes on the assembly cavity of the front mold core. Several injection cavities are provided on it, and the top of the injection cavity is provided with a molding surface. Microholes communicating with the injection nozzle are provided on the molding surface. A linkage block is positioned on the rear mold along with the rear mold core. Guide blocks are obliquely arranged on the side of the linkage block, and the guide blocks are slidably connected to the guide groove. An inclined ejector mechanism is inclinedly arranged on the positioning groove at the bottom of the movable groove. It includes a driving device and an inclined ejector rod telescopically arranged on the driving device. The inclined ejector rod extends into the assembly cavity through a stepped positioning hole on the front mold core. Its top end closes with the assembly cavity, injection cavity, and molding surface to form a molding cavity that matches the cream box.

2. The cream box injection mold using a slanted cylinder for ejection and unloading according to claim 1, characterized in that, The movable groove is provided with several sliding strips that slide and engage with the sliding grooves on the surface of the front mold core.

3. The cream box injection mold using a slanted cylinder for ejection and unloading according to claim 1, characterized in that, At least two front mold cores are provided, and their opposite sides are joined together.

4. The cream box injection mold using a slanted cylinder for ejection and material removal according to claim 1, characterized in that, The sides of the assembly cavity and assembly block are wedge-shaped.

5. A cream box injection mold using a slanted cylinder for ejection and material removal according to claim 1, characterized in that, Both the guide block and the guide groove have a T-shaped cross-section.

6. The cream box injection mold using a slanted cylinder for ejection and unloading according to claim 1, characterized in that, The horizontal cross-sectional dimensions of the injection cavity gradually decrease from bottom to top.

7. A cream box injection mold using a slanted cylinder for ejection and unloading according to claim 1, characterized in that, The horizontal cross-sectional dimension of the top of the inclined rod gradually decreases from bottom to top.

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