Plastic shell mold not prone to glue overflowing

Abstract

The utility model discloses a plastic shell mould not easy to overflow glue, which comprises a lower mould base, four guide pillars fixed on the surface of the top of the lower mould base, and an upper mould base movably arranged above the lower mould base, the guide pillars movably penetrate through the upper mould base, the bottom of the upper mould base and the top of the lower mould base are respectively provided with a molding cavity, and the molding cavities are communicated with the lower mould base. A rectangular-ambulatory-plane mounting groove is formed in the surface of the bottom of the upper die base; the two dismounting mechanisms are arranged between the rectangular-ambulatory-plane rubber base and the upper die base; according to the utility model, by improving and optimizing a plastic shell mold which is not easy to overflow glue in the prior art and designing the dismounting mechanism between the rectangular-ambulatory-plane rubber base and the upper mold base, the dismounting convenience of the rectangular-ambulatory-plane rubber base and the rectangular-ambulatory-plane sealing bulge can be effectively improved; therefore, when the rectangular-ambulatory-plane-shaped rubber base and the rectangular-ambulatory-plane-shaped sealing protrusion are aged and damaged subsequently, dismounting and replacing of the rectangular-ambulatory-plane-shaped rubber base and the rectangular-ambulatory-plane-shaped sealing protrusion are rapidly achieved, and the overall maintenance convenience of the mold in the

Description

TECHNICAL FIELD

[0001] The utility model belongs to injection mold technical field, concretely relates to a plastic shell mold not easy to overflow glue. BACKGROUND

[0002] In the production process of plastic products, injection mold plays a vital role, in order to prevent this plastic shell mold overflow glue in the injection molding process, some molds will be designed around the sealing rubber ring of forming cavity, improve the sealing property after the closing of upper and lower mold base, prevent overflow glue, such as the prior art disclosed in the patent number CN216068465U, including fixed mold and movable mold, the movable mold and fixed mold close to form mold cavity, the movable mold is provided with injection port, the locking surface of movable mold and fixed mold is respectively upper closure face and lower closure face, the upper closure face is fixed with the positioning insert block arranged symmetrically, the lower closure face is provided with the positioning recess groove corresponding with the positioning insert block, it can be seen that the application described is a kind of mold for preventing overflow glue by sealing rubber ring;

[0003] The plastic shell mold in the prior art can prevent overflow glue by sealing rubber ring around forming cavity, but the sealing rubber ring on the injection mold is a consumable part, which needs to be replaced regularly to ensure the sealing property, but the sealing rubber ring on the plastic shell mold in the prior art is mostly fixed by adhesive bonding or other fixed installation methods, so that the sealing rubber ring cannot be quickly removed and replaced after aging and damage, reducing the maintenance convenience of the entire mold in later period, therefore, the utility model provides a plastic shell mold not easy to overflow glue. UTILITY MODEL CONTENTS

[0004] The utility model aims at providing a plastic shell mold not easy to overflow glue to solve the problems in the above background.

[0005] To achieve the above object, the utility model provides the following technical scheme: a plastic shell mold not easy to overflow glue, comprising

[0006] Lower mold base, four guide columns fixed on the top surface of lower mold base, upper mold base movably arranged above lower mold base, and guide columns movably penetrate upper mold base, the bottom of upper mold base and the top of lower mold base are both provided with forming cavity, the bottom surface of upper mold base is provided with hui-shaped installation groove, and hui-shaped rubber base is installed in hui-shaped installation groove, the bottom end of hui-shaped rubber base extends to the bottom of upper mold base and is provided with integrated hui-shaped sealing protrusion, the top surface of lower mold base is provided with hui-shaped groove corresponding with hui-shaped rubber base, and sealing groove is formed in the bottom end inner wall of hui-shaped groove corresponding with hui-shaped sealing protrusion;

[0007] And two disassembling mechanisms arranged between the back-shaped rubber base and the upper die base, including a rotating rod base rotatably arranged on the top surface of the back-shaped rubber base, a movable rod movably arranged on the top end of the rotating rod base, a U-shaped side block fixed on the side surface of the movable rod, a circular top groove arranged on the top surface of the upper die base, a circular rod hole and a strip-shaped disassembling opening arranged between the circular top groove and the back-shaped mounting groove, and the top end of the movable rod is arranged in the circular top groove through the circular rod hole.

[0008] Preferably, a cylindrical inner cavity is arranged in the movable rod, a circular inner block and a spring are arranged in the cylindrical inner cavity, a cylindrical inner rod is fixed on the bottom of the circular inner block, and the bottom end of the cylindrical inner rod is arranged in the bottom of the movable rod and fixed with the rotating rod base.

[0009] Preferably, the top end of the spring is arranged on the bottom surface of the circular inner block, and the bottom end of the spring is arranged on the inner wall of the bottom end of the cylindrical inner cavity.

[0010] Preferably, an annular disengaging groove is arranged on the top surface of the movable rod.

[0011] Preferably, the disassembling mechanism further comprises a rectangular clamping strip fixed in the circular top groove, and the end of the rectangular clamping strip is embedded in the inner side of the U-shaped side block.

[0012] Preferably, the disassembling mechanism further comprises a sealing block rotatably arranged on the top surface of the upper die base, and the sealing block covers the circular top groove.

[0013] Preferably, the disassembling mechanism further comprises an axle block fixed on the top of the upper die base and arranged on the side of the circular top groove, and one end of the sealing block is rotatably arranged on the axle block.

[0014] Preferably, the other end of the sealing block is provided with an integral arc-shaped rubber block, the top surface of the upper die base is provided with a positioning groove corresponding to the arc-shaped rubber block on the other side of the circular top groove, and the arc-shaped rubber block is embedded in the positioning groove.

[0015] Compared with the prior art, the utility model has the advantages that the utility model discloses a plastic shell mold which is not easy to overflow glue in the prior art, and a disassembling mechanism is designed between the back-shaped rubber base and the upper die base, so that the disassembling convenience of the back-shaped rubber base and the back-shaped sealing convex is effectively improved, thereby realizing the disassembling and replacement of the back-shaped rubber base and the back-shaped sealing convex quickly when the back-shaped rubber base and the back-shaped sealing convex are aged and damaged, and the maintenance convenience of the mold is ensured. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 It is a structural schematic view of the utility model;

[0017] Figure 2The cross-sectional view of the utility model;

[0018] Figure 3 The utility model Figure 2 The local enlarged view of A area in the middle;

[0019] Figure 4 The utility model Figure 3 The local enlarged view of B area in the middle;

[0020] Figure 5 The top view of the circular rod hole and the strip-shaped dismounting opening of the utility model;

[0021] In the figure: 1, lower die seat; 2, upper die seat; 21, back-shaped installation groove; 22, positioning groove; 3, guide column; 4, forming cavity; 5, back-shaped groove; 6, sealing groove; 7, dismounting mechanism; 71, rotating rod base; 72, movable rod; 721, cylindrical inner cavity; 722, circular inner block; 723, spring; 724, cylindrical inner rod; 73, U-shaped side block; 74, circular top groove; 75, circular rod hole; 76, strip-shaped dismounting opening; 77, rectangular clamping strip; 78, sealing block; 781, arc-shaped rubber block; 79, shaft block; 8, back-shaped rubber seat; 9, back-shaped sealing convex. DETAILED DESCRIPTION

[0022] The technical schemes in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the utility model. EMBODIMENT

[0023] Please refer to Figures 1 to 5 , the first embodiment of the utility model provides a kind of technical scheme: a plastic shell mould not prone to glue overflow, including

[0024] The lower die base 1, the four guide columns 3 fixed on the top surface of the lower die base 1, the upper die base 2 movably arranged above the lower die base 1, and the guide columns 3 movably penetrating through the upper die base 2, the bottom of the upper die base 2 and the top of the lower die base 1 are both provided with a forming cavity 4, the bottom surface of the upper die base 2 is provided with a H-shaped mounting groove 21, and a H-shaped rubber base 8 is mounted in the H-shaped mounting groove 21, the bottom end of the H-shaped rubber base 8 extends to the bottom of the upper die base 2 and is provided with an integral H-shaped sealing protrusion 9, the top surface of the lower die base 1 is provided with a H-shaped groove 5 corresponding to the H-shaped rubber base 8, and the bottom end inner wall of the H-shaped groove 5 is provided with a sealing groove 6 corresponding to the H-shaped sealing protrusion 9, and when the upper die base 2 is lowered to be closed with the lower die base 1, the bottom end of the H-shaped rubber base 8 enters the H-shaped groove 5, and the H-shaped sealing protrusion 9 enters the sealing groove 6, so that a complete sealing structure is formed around the forming cavity 4 to prevent overflow during injection molding;

[0025] The two dismounting mechanisms 7 arranged between the H-shaped rubber base 8 and the upper die base 2 include a rotating rod base 71 rotatably mounted on the top surface of the H-shaped rubber base 8, a movable rod 72 movably mounted on the top end of the rotating rod base 71, a U-shaped side block 73 welded and fixed on one side surface of the movable rod 72, a circular top groove 74 provided on the top surface of the upper die base 2, a circular rod hole 75 and a strip-shaped dismounting opening 76 penetratingly provided between the circular top groove 74 and the H-shaped mounting groove 21, the top end of the movable rod 72 penetrates through the circular rod hole 75 to the circular top groove 74, and the U-shaped side block 73 is clamped on the inner side of the circular top groove 74, facilitating dismounting and replacing the H-shaped rubber base 8, a cylindrical inner cavity 721 is provided in the movable rod 72, a circular inner block 722 and a spring 723 are arranged in the cylindrical inner cavity 721, a cylindrical inner rod 724 is welded and fixed on the bottom of the circular inner block 722, and the bottom end of the cylindrical inner rod 724 penetrates through the bottom of the movable rod 72 and is fixed with the rotating rod base 71, so that the movable rod 72 can move up and down on the top of the rotating rod base 71.

[0026] In this embodiment, preferably, the top end of the spring 723 abuts against the bottom surface of the circular inner block 722, and the bottom end of the spring 723 abuts against the bottom end inner wall of the cylindrical inner cavity 721.

[0027] In this embodiment, preferably, an annular dismounting groove is provided on the top surface of the movable rod 72, which facilitates the subsequent operator to lift or rotate the movable rod 72.

[0028] In the embodiment, preferably, the disassembling mechanism 7 further comprises a rectangular clamping strip 77 welded and fixed in the circular top groove 74, the end of the rectangular clamping strip 77 is embedded into the inner side of the U-shaped side block 73, the U-shaped side block 73 and the movable rod 72 can be limited, the self-rotation of the U-shaped side block 73 and the movable rod 72 in the daily use process is prevented, when the back-shaped rubber seat 8 and the back-shaped sealing protrusion 9 need to be disassembled and replaced later, the rotating rod seat 71 is only needed to be lifted first, the spring 723 is gradually compressed, until the U-shaped side block 73 is separated from the rectangular clamping strip 77, at this time, the movable rod 72 is rotated, the U-shaped side block 73 is rotated to be aligned with the strip-shaped disassembling opening 76, then the movable rod 72 is pushed down, the U-shaped side block 73 is moved down to the back-shaped mounting groove 21 through the strip-shaped disassembling opening 76, the back-shaped rubber seat 8 can be directly pushed out from the back-shaped mounting groove 21, the maintenance and replacement of the back-shaped rubber seat 8 and the back-shaped sealing protrusion 9 are facilitated. EMBODIMENT

[0029] Please refer to Figures 1 to 5 For the second embodiment of the utility model, the embodiment is based on the previous embodiment, except that the disassembling mechanism 7 further comprises a sealing block 78 rotatably installed on the top surface of the upper mold seat 2, and the sealing block 78 covers the circular top groove 74, so that the circular top groove 74 can be blocked in the daily use process to prevent foreign matters from entering, and the sealing block 78 can be rotated away when the back-shaped rubber seat 8 needs to be disassembled later, the disassembling mechanism 7 further comprises a shaft block 79 fixed on the top of the upper mold seat 2 and located on one side of the circular top groove 74, and one end of the sealing block 78 is rotatably sleeved on the shaft block 79, so that the sealing block 78 can be smoothly rotated on the top of the upper mold seat 2.

[0030] In the embodiment, preferably, the other end of the sealing block 78 is provided with an integral arc-shaped rubber block 781, both of which are made of rubber material and can be elastically deformed when being pressed, the top surface of the upper mold seat 2 is provided with a positioning groove 22 corresponding to the arc-shaped rubber block 781 on the other side of the circular top groove 74, and the arc-shaped rubber block 781 is pressed into the positioning groove 22, so that the sealing block 78 can be assisted and limited in the daily use process to prevent the sealing block 78 from rotating by itself, and when the sealing block 78 needs to be rotated later, the sealing block 78 can be pressed to make the sealing block 78 and the arc-shaped rubber block 781 be elastically deformed and then be pressed out of the positioning groove 22, and the sealing block 78 can be smoothly rotated away from the top of the circular top groove 74.

[0031] Although the embodiments of the utility model have been shown and described (see the detailed description above), it can be understood by those skilled in the art that various changes, modifications, replacements and variations can be made to the embodiments without departing from the principles and spirits of the utility model, and the scope of the utility model is defined by the appended claims and their equivalents.

Claims

1. A plastic shell mold that is not prone to glue overflow, characterized by: Comprising The lower die base (1), four guide columns (3) fixed on the top surface of the lower die base (1), the upper die base (2) movably arranged above the lower die base (1), and the guide column (3) movably penetrates the upper die base (2), the bottom of the upper die base (2) and the top of the lower die base (1) are both provided with a forming cavity (4), the bottom surface of the upper die base (2) is provided with a H-shaped mounting groove (21), and the H-shaped mounting groove (21) is provided with a H-shaped rubber base (8), the bottom end of the H-shaped rubber base (8) extends to the bottom of the upper die base (2) and is provided with an integral H-shaped sealing protrusion (9), the top surface of the lower die base (1) is provided with a H-shaped groove (5) corresponding to the H-shaped rubber base (8), and the bottom end inner wall of the H-shaped groove (5) is provided with a sealing groove (6) corresponding to the H-shaped sealing protrusion (9); And two dismounting mechanisms (7) arranged between the H-shaped rubber base (8) and the upper die base (2), comprising a rotating rod base (71) rotatably arranged on the top surface of the H-shaped rubber base (8), an activity rod (72) movably arranged on the top end of the rotating rod base (71), a U-shaped side block (73) fixed on one side surface of the activity rod (72), a circular top groove (74) provided on the top surface of the upper die base (2), a circular rod hole (75) and a strip-shaped dismounting opening (76) provided between the circular top groove (74) and the H-shaped mounting groove (21), and the top end of the activity rod (72) penetrates into the circular top groove (74) through the circular rod hole (75), and the U-shaped side block (73) is clamped on the inner side of the circular top groove (74).

2. The plastic shell mold of claim 1, wherein: The interior of the activity rod (72) is provided with a cylindrical inner cavity (721), and the cylindrical inner cavity (721) is provided with a circular inner block (722) and a spring (723), the bottom of the circular inner block (722) is fixed with a cylindrical inner rod (724), and the bottom end of the cylindrical inner rod (724) penetrates to the bottom of the activity rod (72) and is fixed with the rotating rod base (71).

3. The plastic shell mold of claim 2, wherein: The top end of the spring (723) abuts against the bottom surface of the circular inner block (722), and the bottom end of the spring (723) abuts against the bottom end inner wall of the cylindrical inner cavity (721).

4. The plastic shell mold of claim 1, wherein: The top end surface of the activity rod (72) is provided with an annular slot.

5. The plastic shell mold of claim 1, wherein: The dismounting mechanism (7) further comprises a rectangular clamping strip (77) fixed in the circular top groove (74), and the end of the rectangular clamping strip (77) is embedded into the inner side of the U-shaped side block (73).

6. The plastic shell mold of claim 1, wherein: The dismounting mechanism (7) further comprises an enclosing block (78) rotatably arranged on the top surface of the upper die base (2), and the enclosing block (78) covers the circular top groove (74).

7. The plastic shell mold of claim 6, wherein: The dismounting mechanism (7) further comprises a shaft block (79) fixed on the top of the upper die base (2) and located on one side of the circular top groove (74), and one end of the enclosing block (78) is rotatably sleeved on the shaft block (79).

8. The plastic shell mold of claim 7, wherein: The other end of the enclosing block (78) is provided with an integral arc-shaped rubber block (781), and the top surface of the upper die base (2) is provided with a positioning groove (22) corresponding to the arc-shaped rubber block (781) on the other side of the circular top groove (74), and the arc-shaped rubber block (781) is extruded into the positioning groove (22).

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