Plastic spring pump body mold

Abstract

The invention discloses a plastic spring pump body mold which comprises an upper mold assembly and a lower mold assembly, the upper mold assembly comprises an upper mold plate and an upper mold insert, the upper mold insert is fixed to the upper mold plate, the upper mold plate is further provided with inclined guide columns located on the two sides of the upper mold insert, the lower mold assembly comprises a lower mold plate and a lower mold insert sleeve, the lower mold insert sleeve is fixed to the lower mold plate, and the lower mold insert sleeve is further provided with inclined guide columns located on the two sides of the upper mold insert. Sliding blocks matched with the inclined guide columns are arranged on the two sides of the lower mold insert sleeve, the sliding blocks are arranged on the upper side face of the lower mold plate in a sliding mode, the lower mold plate is further provided with an ejection assembly, when the upper mold assembly and the lower mold assembly are folded, the upper mold insert, the sliding blocks and the ejection assembly form a forming cavity, and the ejection assembly comprises an ejector sleeve and an ejector sleeve needle which are coaxially arranged. The ejector sleeve and the lower die bushing are coaxially arranged and can vertically penetrate out of the lower die bushing, the ejector sleeve needle is vertically and movably matched with the ejector sleeve, and a blowing needle is arranged in the ejector sleeve needle. The sliding block is driven to be separated through cooperation of the inclined guide column and the sliding block to achieve primary mold splitting, an ejector sleeve of the ejection assembly moves upwards to achieve ejection of a product, meanwhile, a plastic spring pump body and an ejector sleeve needle are separated through upward movement and air blowing of an air blowing needle, and therefore the ejector sleeve conveniently ejects the product upwards, and reliable core pulling is achieved.

Description

Technical Field

[0001] The invention specifically relates to a plastic spring pump body mould. Background Art

[0002] Most of the existing cosmetic plastic packaging bottles are equipped with metal springs. The elasticity of the metal springs makes the elastic components have pressing elasticity, so as to achieve the purpose of taking cosmetics. However, according to the provisions of the technical specifications for waste plastic recycling, when metal products are installed in plastic bottles, they do not fall into the category of recyclable plastics. The common method of recycling and reusing waste plastics is mainly the melting and reprocessing of waste plastics. Before the plastic is melted, the waste plastics must be crushed and screened to distinguish plastics of different materials, and then melted. When metal is mixed in the plastic, the metal spring needs to be removed first and then recycled. In addition, the use of metal springs in plastic packaging will cause the springs to rust and contaminate the cosmetics, and will also make recycling more difficult. Therefore, plastic spring pump bodies have great market prospects.

[0003] Plastic spring pump bodies are mostly injection molded, and the mechanism is mostly bellows-shaped, with varying inner diameters. Figure 1 and attached Figure 2 As shown, special attention should be paid during demoulding to avoid damage to the plastic spring pump body due to core pulling, which results in low production efficiency and complex structure. Summary of the invention

[0004] The technical problem to be solved by the present invention is to provide a plastic spring pump body mould with simple structure, high production efficiency and high product qualification rate.

[0005] In order to solve the above technical problems, the present invention is solved by the following technical solutions: a plastic spring pump body mold, including an upper mold assembly and a lower mold assembly that cooperate with each other, the upper mold assembly includes an upper mold plate and an upper mold insert, the upper mold insert is fixed to the upper mold plate, and the upper mold plate is also provided with oblique guide columns on both sides of the upper mold insert, the lower mold assembly includes a lower mold plate and a lower mold insert sleeve, the lower mold insert sleeve is fixed to the lower mold plate, and sliders that cooperate with the oblique guide columns are provided on both sides of the lower mold insert sleeve, and the sliders are slidably arranged On the upper side of the lower template, the lower template is also provided with an ejector assembly. When the upper mold assembly and the lower mold assembly are closed, the upper mold insert, the slider and the ejector assembly form a molding cavity. The ejector assembly includes a coaxially arranged sleeve and a sleeve needle. The sleeve is coaxially arranged with the lower mold insert sleeve and can vertically pass through the lower mold insert sleeve. The sleeve needle is vertically movable with the sleeve, and a blowing needle for blowing air into the molding cavity is coaxially arranged inside the sleeve needle. When the upper mold assembly and the lower mold assembly are separated, the sleeve can eject the plastic spring pump body upward.

[0006] Preferably, the slider is provided with an inclined hole, and the inclined guide column can be movably inserted into the corresponding inclined hole; the advantage is that the cooperation between the inclined hole and the inclined guide column can reliably drive the slider to close or separate during the upward or downward movement of the upper template.

[0007] Preferably, the plastic spring pump body comprises a plastic spring body, a head cap is arranged on the upper part of the plastic spring body, and the head cap is provided with a fixed edge extending outward; the advantage is that the fixed edge can facilitate the cylinder to lift the plastic spring body upward, thereby ensuring the reliability of material removal.

[0008] Furthermore, an ejector portion is provided at the upper end of the sleeve, and the ejector portion corresponds to the fixed edge; the advantage is that the cooperation between the ejector portion and the fixed edge can ensure the reliability of the sleeve lifting the plastic spring and ensure the efficiency of demoulding and core pulling.

[0009] Furthermore, the lower mold assembly also includes a pin plate and a fixed plate, the pin plate is used to drive the sleeve to move up and down, and the fixed plate is fixed to the sleeve needle; the advantage is that the pin plate can reliably push the sleeve to move up and down, and the fixed plate can ensure the stability of the sleeve needle, thereby ensuring the accuracy of the plastic spring pump body molding process during the injection molding process and improving the production qualification rate.

[0010] Furthermore, a blowing plate for driving the vertical movement of the blowing needle is arranged under the fixed plate, and the blowing plate is provided with an air channel, and the lower part of the blowing needle passes through the second ejector plate and is connected to the air channel; the advantage is that the blowing plate can ensure the stability of the blowing, and at the same time can drive the vertical movement of the blowing needle, which is convenient for the reliability of demolding and core pulling.

[0011] Preferably, the present invention also includes a button machine assembly, which includes a drive block, a first button plate and a second button plate. The drive block is laterally movably arranged in the plate, and a portion of the drive block extends out of the ejector pin plate. The second button plate is provided with a limit groove corresponding to the drive block, and an upper portion of the limit groove is provided with an inclined guide surface. The first button plate is provided with a linkage groove, and the drive block extends into the linkage groove and cooperates with the linkage groove to drive the first button plate to move vertically, and the guide surface can press the drive block to escape from the linkage groove. The advantage is that the button machine assembly can be set up to realize the upward movement of the blowing needle after the sleeve moves up a distance at one end, and finally the sleeve moves up alone to lift the plastic spring pump body, thereby ensuring the reliability of the blowing needle blowing, thereby utilizing the airflow to separate the plastic spring body from the upper end of the sleeve needle, and finally realizing smooth core pulling.

[0012] Furthermore, the ejector plate is provided with a mounting hole, the drive block is movably arranged in the mounting hole, and a compression spring for resisting the drive block is also arranged in the mounting hole; the advantage is that the drive block can be reliably driven to cooperate with the first buckle plate and the second buckle plate through the cooperation of the arranged mounting hole and the compression spring, thereby ensuring the reliability of the linkage between the sleeve and the blowing needle.

[0013] Compared with the prior art, the present invention has the following beneficial effects: the upper mold assembly and the lower mold assembly can reliably drive the vertical movement of the upper mold plate and the lower mold plate, and the cooperation of the inclined guide column and the slider drives the slider to separate to achieve preliminary mold separation, and then the ejector sleeve of the ejector assembly moves upward to achieve the lifting of the product. In this process, the upward movement of the blowing needle and the blowing of the air are used to separate the plastic spring pump body and the ejector sleeve needle, so that the ejector sleeve can eject the product upward and realize reliable core pulling. This effectively improves the production efficiency while improving the product qualification rate. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0015] Figure 1 It is a structural schematic diagram of the plastic spring pump body of the present invention; Figure 2 for Figure 1 A schematic diagram of the cross-sectional structure of; Figure 3 It is a schematic diagram of the overall structure of the present invention; Figure 4 It is a schematic diagram of the internal structure of the present invention in the mold closing state; Figure 5 It is a schematic diagram of the internal structure of the present invention in the mold separation state; Figure 6 It is a schematic diagram of the state of the ejection assembly of the present invention; Figure 7 It is a schematic diagram of the state of the trigger assembly of the present invention. DETAILED DESCRIPTION

[0016] The present invention is further described in detail below with reference to the accompanying drawings.

[0017] The following description is used to disclose the present invention so that those skilled in the art can implement the present invention. The preferred embodiments described below are only examples, and those skilled in the art can think of other obvious variations. The basic principles of the present invention defined in the following description can be used for other embodiments, variations, improvements, equivalents, and other technical solutions that do not deviate from the spirit and scope of the present invention.

[0018] Those skilled in the art should understand that, in the disclosure of the present invention, the directions or positions indicated by the terms "longitudinal", "lateral", "up", "down", "left", "right", "front", "back", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc. are based on the directions or positional relationships shown in the accompanying drawings, which are only simplified descriptions for the convenience of describing the present invention, and do not indicate or imply that the device or component referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, the above terms should not be understood as limitations on the present invention.

[0019] As attached Figure 2-7 The plastic spring pump body mold shown includes an upper mold assembly 1 and a lower mold assembly 2 that cooperate with each other. The upper mold assembly 1 includes an upper mold plate 1.1 and an upper mold insert 1.2. The upper mold insert 1.2 is fixed to the upper mold plate 1.1. The upper mold plate 1.1 is also provided with inclined guide pillars 1.3 located on both sides of the upper mold insert 1.2. The lower mold assembly 2 includes a lower mold plate 2.1 and a lower mold insert sleeve 2.2. The lower mold insert sleeve 2.2 is fixed to the lower mold plate 2.1. Slide blocks 2.3 that cooperate with the inclined guide pillars 1.3 are provided on both sides of the lower mold insert sleeve 2.2. The slide blocks 2.3 are provided with inclined holes 2.4. The inclined guide pillars 1.3 can be movably inserted into the corresponding inclined holes 2.4. The slide blocks 2.3 are slidably arranged on the upper side of the lower mold plate 2.1. Among them, the upper mold plate 1.1 can be driven by a cylinder or a motor to move vertically.

[0020] The lower mold plate 2.1 of the present invention is also provided with an ejector assembly 3. When the upper mold assembly 1 and the lower mold assembly 2 are closed, the upper mold insert, the slider 2.3 and the ejector assembly 3 form a molding cavity, and the raw material is injected into the molding cavity to form a plastic spring pump 5. The ejector assembly 3 includes a coaxially arranged sleeve 3.1 and a sleeve needle 3.2. The sleeve 3.1 is coaxially arranged with the lower mold insert sleeve 2.2 and can vertically penetrate the lower mold insert sleeve 2.2. The sleeve needle 3.2 is vertically movable with the sleeve 3.1. A blowing needle 3.3 for blowing into the molding cavity is coaxially arranged inside the sleeve needle 3.2; when the upper mold assembly 1 and the lower mold assembly 2 are separated, the sleeve 3.1 can eject the plastic spring pump 5 body upward.

[0021] The above technical solution is adopted, that is, the upper mold assembly 1 and the lower mold assembly 2 are set to reliably drive the upper mold plate 1.1 and the lower mold plate 2.1 to move vertically. In this process, the inclined guide column 1.3 and the slider 2.3 are driven to separate to realize the initial mold separation, and then the ejector sleeve 3.1 of the ejector assembly 3 moves upward to realize the lifting of the product. In this process, the upward movement of the blowing needle 3.3 and the blowing are used to separate the plastic spring pump 5 body and the ejector sleeve needle 3.2, so that the ejector sleeve 3.1 is convenient for ejecting the product upward and realizing reliable core pulling. Thereby, the qualified rate of products is improved while the production efficiency is effectively improved.

[0022] The plastic spring pump 5 of the present invention comprises a plastic spring body 5.1, a head cap 5.2 is arranged on the upper part of the plastic spring body 5.1, and a fixing edge 5.3 extending outward is arranged on the head cap 5.2. To facilitate ejection of the plastic spring pump 5 head from the mold, an ejection portion is arranged at the upper end of the sleeve 3.1, and the ejection portion corresponds to the fixing edge 5.3.

[0023] In order to ensure that the sleeve 3.1 can reliably move out of the lower mold insert sleeve 2.2, the lower mold assembly 2 also includes an ejector plate 3.4 and a fixed plate 3.5. The ejector plate 3.4 is used to drive the sleeve 3.1 to move up and down, and the fixed plate 3.5 is fixed to the sleeve needle 3.2. The fixed plate 3.5 can ensure the stability of the sleeve needle 3.2, thereby ensuring the accuracy of the plastic spring pump 5 body molding process during the injection molding process and improving the production qualification rate.

[0024] On the basis of the above, a blowing plate for driving the blowing needle 3.3 to move vertically is also provided under the fixed plate 3.5. The blowing plate is provided with an air passage. The lower part of the blowing needle 3.3 passes through the second ejector plate 3.4 and is connected to the air passage. The blowing plate can ensure the stability of the blowing and drive the vertical movement of the blowing needle 3.3, making the demoulding and core pulling more reliable.

[0025] On the basis of the above, in order to ensure the linkage between the sleeve 3.1 and the blowing needle 3.3, the present invention is also provided with a button assembly 4, which includes a driving block 4.1, a first button plate 4.2 and a second button plate 4.3. The driving block 4.1 is laterally movably arranged in the plate, and part of the driving block 4.1 extends out of the ejector plate 3.4. The lower part of the first button plate 4.2 is fixed to the blowing plate, and the second button plate 4.3 is fixed to the fixed plate 3.5. The first button plate 4.2 and the second button plate 4.3 are movably matched. Among them, the second buckle plate 4.3 is provided with a limit groove corresponding to the driving block 4.1, and the upper part of the limit groove is provided with an inclined guide surface 4.31, and the first buckle plate 4.2 is provided with a linkage groove, and the driving block 4.1 extends into the linkage groove and cooperates with the linkage groove to drive the first buckle plate 4.2 to move vertically, and the guide surface 4.31 can press the driving block 4.1 to escape from the linkage groove, as shown in the attached drawings b1, b2, b3 and b4; the set buckle machine assembly 4 can realize the upward movement of the blowing needle 3.3 after the sleeve 3.1 moves up a distance, and finally the sleeve 3.1 moves up alone to lift the plastic spring pump 5 body, thereby ensuring the reliability of the blowing needle 3.3 blowing, thereby utilizing the airflow to separate the plastic spring body 5.1 from the upper end of the sleeve needle 3.2, and finally realizing smooth core pulling, as shown in the attached drawings a1, a2 and a3. Specifically, the ejector plate 3.4 is provided with a mounting hole, and the drive block 4.1 is movably arranged in the mounting hole. A compression spring 4.4 for resisting the drive block 4.1 is also arranged in the mounting hole. The cooperation between the provided mounting hole and the compression spring can reliably drive the drive block 4.1 to cooperate with the first buckle plate 4.2 and the second buckle plate 4.3, thereby ensuring the reliability of the linkage between the sleeve 3.1 and the blowing needle 3.3.

[0026] It should be noted that the vertical driving of the upper mold plate 1.1 and the ejector plate 3.4 of the present invention is a prior art in the field of mold processing and will not be described in detail here.

[0027] Those skilled in the art should understand that the embodiments of the present invention described above and shown in the accompanying drawings are only examples and do not limit the present invention. The purpose of the present invention has been fully and effectively achieved. The functions and structural principles of the present invention have been demonstrated and explained in the embodiments, and the embodiments of the present invention may be deformed or modified in any way without departing from the principles.

Claims

1. A plastic spring pump body mold, comprising an upper mold assembly and a lower mold assembly that cooperate with each other, the upper mold assembly comprising an upper mold plate and an upper mold insert, the upper mold insert is fixed to the upper mold plate, the upper mold plate is also provided with oblique guide pillars located on both sides of the upper mold insert, the lower mold assembly comprises a lower mold plate and a lower mold insert sleeve, the lower mold insert sleeve is fixed to the lower mold plate, and sliders that cooperate with the oblique guide pillars are provided on both sides of the lower mold insert sleeve, and the sliders are slidably arranged on the upper side of the lower mold plate, characterized in that: The lower mold plate is also provided with an ejector assembly. When the upper mold assembly and the lower mold assembly are closed, the upper mold insert, the slider and the ejector assembly form a molding cavity. The ejector assembly includes a coaxially arranged sleeve and a sleeve needle. The sleeve is coaxially arranged with the lower mold insert sleeve and can vertically pass through the lower mold insert sleeve. The sleeve needle is vertically movable with the sleeve, and a blowing needle for blowing air into the molding cavity is coaxially arranged inside the sleeve needle. When the upper mold assembly and the lower mold assembly are separated, the sleeve can eject the plastic spring pump body upward.

2. A plastic spring pump body mold according to claim 1, characterized in that: The sliding block is provided with an inclined hole, and the inclined guide column can be movably inserted into the corresponding inclined hole.

3. A plastic spring pump body mold according to claim 1, characterized in that: The plastic spring pump body comprises a plastic spring body, a head cap is arranged on the upper part of the plastic spring body, and the head cap is provided with a fixing edge extending outwards.

4. A plastic spring pump body mold according to claim 3, characterized in that: An ejection portion is disposed at the upper end of the sleeve, and the ejection portion corresponds to the fixed edge.

5. A plastic spring pump body mold according to claim 4, characterized in that: The lower mold assembly also includes an ejector plate and a fixed plate. The ejector plate is used to drive the ejector sleeve to move up and down, and the fixed plate is fixed to the ejector sleeve needle.

6. A plastic spring pump body mold according to claim 5, characterized in that: A blowing plate for driving the blowing needle to move vertically is arranged below the fixing plate, the blowing plate is provided with an air passage, and the lower part of the blowing needle penetrates the second ejector plate and is connected with the air passage.

7. The plastic spring pump body mold according to claim 5, characterized in that: It also includes a latch assembly, which includes a drive block, a first latch plate and a second latch plate. The drive block is laterally movably arranged in the plate, and a portion of the drive block extends out of the ejector plate. The second latch plate is provided with a limiting groove corresponding to the drive block, and an inclined guide surface is provided on the upper portion of the limiting groove. The first latch plate is provided with a linkage groove, and the drive block extends into the linkage groove and cooperates with the linkage groove to drive the first latch plate to move vertically. The guide surface can press the drive block to escape from the linkage groove.

8. The plastic spring pump body mold according to claim 7, characterized in that: The ejector plate is provided with a mounting hole, the driving block is movably arranged in the mounting hole, and a compression spring for resisting the driving block is also arranged in the mounting hole.

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