Plastic shell forming mold

Abstract

The utility model discloses a plastic shell forming mold which comprises a mold body, a shell forming mold cavity is formed in the mold body, the mold body is connected with a first core pulling assembly, the first core pulling assembly comprises a first oil cylinder and a forming sliding block, one end of the forming sliding block is connected with the shell forming mold cavity, and the other end of the forming sliding block is connected with the first oil cylinder; the mold body is further connected with a second core pulling assembly, the second core pulling assembly comprises a core, a fixing block, an inclined guide block and a second oil cylinder, the fixing block is fastened to the mold body and provided with a groove, the head end of the core is inserted into the shell forming mold cavity, the tail end of the core is movably arranged in the groove of the fixing block, the inclined guide block is arranged in the groove, and the second oil cylinder is connected with the inclined guide block. The inclined guide block is movably connected with the tail end of the core, and the second oil cylinder is connected with the inclined guide block; the second oil cylinder moves in the vertical direction and can drive the inclined guide block to slide along the inclined face. The mold is provided with two core-pulling assemblies in different directions, so that the shell is easier to mold and demold.

Description

Technical Field

[0001] The utility model relates to the field of injection molds, in particular to a plastic shell molding mold. Background Art

[0002] The shell of the agitator is made of plastic and is generally manufactured using an injection mold. Figure 1 The figure shows a three-dimensional view of an agitator shell. As can be seen from the figure, an opening 112 is provided on the right side of the shell 111, and a through hole 113 is provided on the front side of the shell 111. From the perspective of mold design, the molding of the opening 112 and the through hole 113 must be achieved by core pulling. After the shell 111 is molded in the mold, it is split into upper and lower molds. The core pulling direction of the opening 112 and the through hole 113 is obviously different from the mold splitting direction, and there is a conflict. In addition, the core pulling direction of the opening 112 and the through hole 113 is also different. The existing mold cannot be used to mold the shell 111. Therefore, the mold needs to be improved. Summary of the Invention

[0003] The utility model aims to provide a plastic shell forming mold, which is equipped with two core-pulling components in different directions, so that the shell is easier to form and demould.

[0004] In order to achieve the above purpose, the technical solution adopted by the present invention is as follows: a plastic shell molding mold, including a mold body, a shell molding cavity is provided in the mold body, the mold body is connected to a first core pulling assembly, the first core pulling assembly includes a first oil cylinder and a molding slider, one end of the molding slider is connected to the shell molding cavity, and the other end of the molding slider is connected to the first oil cylinder, and the first oil cylinder can drive the molding slider to move away from the shell molding cavity; the mold body is also connected to a second core pulling assembly, the second core pulling assembly includes a core, a fixed block, an inclined guide block and a second oil cylinder , the fixed block is fastened to the mold body, the fixed block is provided with a groove, the head end of the core is inserted into the shell forming cavity, the end of the core is movably provided in the groove of the fixed block, the inclined guide block is provided in the groove and is located between the inner side wall of the groove and the end of the core, the inclined guide block is movably connected to the end of the core and the connecting surface of the two is an inclined surface, the second oil cylinder is connected to the inclined guide block; the second oil cylinder moves in the vertical direction to drive the inclined guide block to slide along the inclined surface, and the sliding of the inclined guide block along the inclined surface can make the head end of the core move away from the shell forming cavity.

[0005] Compared with the prior art, the advantages of the present invention are that the mold solves the problem of difficulty in demolding the shell after molding by setting a shell molding cavity in the mold body and equipping it with two core-pulling assemblies in different directions. Specifically, the mold body is connected to a first core-pulling assembly, which includes a first oil cylinder and a molding slider. The first oil cylinder drives the molding slider to move, which can realize the core-pulling action of the shell opening part, ensuring the smooth demolding of the opening part. At the same time, the mold body is also connected to a second core-pulling assembly, which includes a core, a fixed block, an inclined guide block and a second oil cylinder. The second oil cylinder moves in the vertical direction to drive the inclined guide block to slide along the inclined surface, thereby allowing the head end of the core to be away from the shell molding cavity, realizing the core-pulling action of the through-hole part. Therefore, the plastic shell molding mold of the present invention is not only suitable for the molding of shells with different core-pulling directions, but also improves the molding quality and production efficiency of the shell.

[0006] In some embodiments of the present invention, the mold body includes a forming mold frame and a forming template, which together form the shell forming cavity. This design enables the mold to accurately form the desired shell shape when closed. Furthermore, the separate mold frame and template design facilitates assembly and disassembly, as well as maintenance, thereby increasing the mold's flexibility and service life.

[0007] In some embodiments of the present invention, the forming template is provided with a forming core, which includes a core column and an insert, wherein the insert is embedded in the core column. The combined design of the core column and the insert not only ensures the structural strength of the mold, but also improves the molding accuracy and complexity of the mold through the embedded design of the insert, thereby better adapting to the molding requirements of different shells.

[0008] In some embodiments of the present invention, one end of the forming slider is spliced ​​with the mold core column.

[0009] In some embodiments of the present invention, the head end of the core abuts against the mold core column. This design ensures the positioning accuracy of the core when the mold is closed, thereby improving the precision and quality of the shell molding.

[0010] In some embodiments of the present invention, the insert includes an insertion rod in a rod-shaped structure, and the insertion rod is inserted into the mold core column at an angle.

[0011] In some embodiments of the present invention, the first core pulling assembly and the second core pulling assembly are arranged on the mold body at a 90-degree angle. This arrangement enables the two core pulling assemblies to perform core pulling in different directions, thereby solving the need for core pulling in different directions on the shell, thereby improving the molding quality and demolding efficiency of the shell. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a three-dimensional structural diagram of the shell;

[0013] Figure 2 This is a cross-sectional view of the first core pulling assembly of the utility model;

[0014] Figure 3 This is a cross-sectional view of the second core-pulling assembly of the present invention;

[0015] Figure 4 It is a three-dimensional structural diagram of the forming template;

[0016] Figure 5 A three-dimensional structural diagram of the utility model.

[0017] In the figure: 3. First core-pulling assembly; 4. First oil cylinder; 5. Forming slide; 6. Second core-pulling assembly; 7. Core; 8. Fixed block; 10. Inclined guide block; 11. Second oil cylinder; 12. Forming mold frame; 13. Forming template; 14. Forming mold core; 15. Mold core column; 16. Insert; 17. Insert rod. DETAILED DESCRIPTION

[0018] The present invention will be further described below in conjunction with specific implementation methods. It should be noted that, under the premise of no conflict, the various embodiments or technical features described below can be arbitrarily combined to form new embodiments.

[0019] In the description of the present invention, it should be noted that, for directional words, such as the terms "center", "horizontal", "longitudinal", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and so on, indicating directions and positional relationships, are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and cannot be understood as limiting the specific scope of protection of the present invention.

[0020] It should be noted that the terms "first", "second", etc. in the description and claims of the present utility model are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence.

[0021] The terms "including" and "having" and any variations thereof in the description and claims of the present invention are intended to cover non-exclusive inclusions. For example, a process, method, system, product or apparatus that includes a series of steps or units is not necessarily limited to those steps or units explicitly listed, but may include other steps or units not explicitly listed or inherent to these processes, methods, products or apparatuses.

[0022] like Figure 2-Figure 5 As shown, a plastic shell molding mold includes a mold body, a shell molding cavity for filling molten material is provided in the mold body, the mold body is connected to a first core pulling assembly 3, the first core pulling assembly 3 includes a first oil cylinder 4 and a molding slide 5, one end of the molding slide 5 is connected to the shell molding cavity, and the other end of the molding slide 5 is connected to the first oil cylinder 4, and the first oil cylinder 4 can drive the molding slide 5 to move away from the shell molding cavity; the mold body is also connected to a second core pulling assembly 6, the second core pulling assembly 6 includes a core 7, a fixed block 8, an inclined guide block 10 and a second oil cylinder 11, The fixed block 8 is fastened to the mold body and is provided with a groove. The head end of the core 7 is inserted into the shell forming cavity. The tail end of the core 7 is movably set in the groove of the fixed block 8. The inclined guide block 10 is set in the groove and is located between the inner side wall of the groove and the tail end of the core 7. The inclined guide block 10 is movably connected to the tail end of the core 7 and the connecting surface between the two is an inclined surface. The second oil cylinder 11 is connected to the inclined guide block 10; the second oil cylinder 11 moves in the vertical direction to drive the inclined guide block 10 to slide along the inclined surface. The sliding of the inclined guide block 10 along the inclined surface can move the head end of the core 7 away from the shell forming cavity. It is worth noting that mold parting is performed only after the first core pulling assembly 3 and the second core pulling assembly 6 have completed core pulling.

[0023] During the core pulling process, the first oil cylinder 4 drives the forming slide 5 to slide horizontally to the right, thereby separating the forming slide 5 from the shell forming cavity; at the same time, the second oil cylinder 11 moves vertically to drive the inclined guide block 10 to slide along the inclined surface, and the inclined guide block 10 moves along the vertical direction and gradually separates from the end of the core 7, so that the core 7 has space to move to the left in the groove, and the core 7 moves horizontally to the left to separate from the shell forming cavity, completing the core pulling.

[0024] In the above structure: the mold solves the problem of difficulty in demolding after the shell is molded by setting a shell molding cavity in the mold body and equipping it with two core-pulling assemblies in different directions. Specifically, the mold body is connected to a first core-pulling assembly 3, which includes a first oil cylinder 4 and a molding slide 5. The first oil cylinder 4 drives the molding slide 5 to move, which can realize the core-pulling action of the shell opening part, ensuring the smooth demolding of the opening part. At the same time, the mold body is also connected to a second core-pulling assembly 6, which includes a core 7, a fixed block 8, an inclined guide block 10 and a second oil cylinder 11. The second oil cylinder 11 moves in the vertical direction to drive the inclined guide block 10 to slide along the inclined surface, thereby allowing the head end of the core 7 to be away from the shell molding cavity, realizing the core-pulling action of the through-hole part. Therefore, the plastic shell molding mold of the present invention is not only suitable for shell molding with different core-pulling directions, but also improves the molding quality and production efficiency of the shell.

[0025] Specifically, to facilitate assembly and disassembly of the mold and improve its flexibility and service life, the mold body includes a forming mold frame 12 and a forming template 13. The forming mold frame 12 and the forming template 13 are combined to form the shell forming cavity. This design also enables the mold to accurately form the desired shell shape when closed.

[0026] Specifically, in order to ensure the structural strength of the mold, the molding accuracy and complexity of the mold can be improved through the embedded design of the insert 16, so as to better adapt to the molding requirements of different shells. A molding core 14 is provided on the molding template 13, and the molding core 14 includes a mold core column 15 and an insert 16, and the insert 16 is embedded in the mold core column 15.

[0027] Specifically, one end of the molding slide 5 is spliced ​​with the mold core column 15. In order to ensure the positioning accuracy of the core 7 when the mold is closed and improve the precision and quality of the shell molding, the head end of the core 7 is abutted against the mold core column 15.

[0028] Specifically, the insert 16 includes a rod-shaped insert 17, which is inserted at an angle into the mold core column 15. The first core pulling assembly 3 and the second core pulling assembly 6 are arranged on the mold body at a 90-degree angle. This arrangement allows the two core pulling assemblies to perform core pulling in different directions, solving the need for core pulling in different directions on the shell, thereby improving the shell's molding quality and demolding efficiency.

[0029] The above describes the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and description merely illustrate the principles of the present invention. Various changes and improvements are possible without departing from the spirit and scope of the present invention. Such changes and improvements are intended to fall within the scope of the present invention. The scope of protection claimed for the present invention is defined by the appended claims and their equivalents.

Claims

1. A plastic shell forming mold, comprising a mold body, wherein a shell forming cavity is provided in the mold body, characterized in that: The mold body is connected to a first core pulling assembly, the first core pulling assembly includes a first oil cylinder and a forming slider, one end of the forming slider is connected to the shell forming cavity, and the other end of the forming slider is connected to the first oil cylinder, and the first oil cylinder can drive the forming slider to move in the direction away from the shell forming cavity; the mold body is also connected to a second core pulling assembly, the second core pulling assembly includes a core, a fixed block, an inclined guide block and a second oil cylinder, the fixed block is fastened to the mold body, the fixed block is provided with a groove, the head end of the core is inserted into the shell forming cavity, the end of the core is movably provided in the groove of the fixed block, the inclined guide block is provided in the groove and is located between the inner side wall of the groove and the end of the core, the inclined guide block is movably connected to the end of the core and the connecting surface between the two is an inclined surface, and the second oil cylinder is connected to the inclined guide block; the second oil cylinder can drive the inclined guide block to slide along the inclined surface when it moves in the vertical direction, and the inclined guide block can make the head end of the core move away from the shell forming cavity when it slides along the inclined surface.

2. A plastic shell forming mold according to claim 1, characterized in that: The mold body includes a forming mold frame and a forming template, and the forming mold frame and the forming template are combined to form the shell forming mold cavity.

3. The plastic shell forming mold according to claim 2, characterized in that: A forming mold core is provided on the forming template. The forming mold core comprises a mold core column and an insert. The insert is embedded in the mold core column.

4. The plastic shell forming mold according to claim 3, characterized in that: One end of the forming slider is spliced ​​with the mold core column.

5. The plastic shell forming mold according to claim 4, characterized in that: The head end of the core is in contact with the mold core column.

6. The plastic shell forming mold according to claim 3, characterized in that: The insert comprises an insert rod in a rod-shaped structure, and the insert rod is obliquely inserted into the mold core column.

7. The plastic shell forming mold according to claim 1, characterized in that: The first core pulling assembly and the second core pulling assembly are arranged on the mold body at an angle of 90 degrees.

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