CN219522933U - A secondary ejection structure of a plastic mold - Google Patents

Abstract

The utility model discloses a secondary ejection structure of a plastic mold, which comprises a bottom plate, four vertical bars are fixed on the top of the bottom plate, a top plate is fixed between the top ends of the four vertical bars, and the top of the top plate A cylinder is fixed, the output end of the cylinder passes through the top plate and extends to the bottom of the top plate, the output end of the cylinder is fixed with a connecting plate, and connecting rods are fixed on both sides of the top of the connecting plate, and the two connecting rods The tops of the tops all pass through the top plate and extend to the top of the top plate. The utility model relates to the technical field of mold manufacturing. The secondary ejection structure of the plastic mold, through the setting of the secondary ejection mechanism, realizes the ejection of the product in the horizontal direction, does not need to manually remove the product, improves the production efficiency, and utilizes the back and forth reciprocating movement of the push plate, It can push and clean the overflowing raw materials on the mold base, with high degree of automation and strong practicability.

Description

A secondary ejection structure of a plastic mold

technical field

The utility model relates to the technical field of mold manufacturing, in particular to a secondary ejection structure of a plastic mold.

Background technique

Plastic mold is the abbreviation of a combined mold used for compression molding, extrusion molding, injection molding, blow molding and low foaming molding. The coordinated change of mold convex, concave mold and auxiliary molding system can process different shapes and sizes. A series of plastic parts, in the actual application process, after the plastic mold is pressed and molded, the plastic parts need to be taken out.

Referring to the Chinese patent, a plastic mold with an ejection structure (publication number: CN216068274U, publication date: 2022-03-18), this patent solves the problem that most of the existing molds adopt the method of air pressure adsorption. The plastic part has the risk of falling off, and after demolding, the burr will turn back, and it needs to be polished later, which reduces the production efficiency of the plastic mold. Although the patent improves the mold ejection efficiency by setting the ejector structure, the patent can only achieve vertical Direction of mold release, the temperature of the product is often high after it is formed, it is inconvenient to take it away immediately, it needs to wait for the product to cool down, which reduces the production efficiency. On the mold base, it is inconvenient to clean, so we propose a secondary ejection structure for plastic molds to solve the above problems.

Utility model content

Aiming at the deficiencies of the existing technology, the utility model provides a secondary ejection structure of the plastic mold, which solves the problem that the reference patent can only realize the ejection in the vertical direction, and the temperature of the product is often high after molding, which is inconvenient Take it away immediately, you need to wait for the product to cool down, which reduces the production efficiency, and during the injection molding process, after the injection tank is filled, some product raw materials are easy to overflow onto the mold base, which is inconvenient to clean.

In order to achieve the above purpose, the utility model is achieved through the following technical solutions: a secondary ejection structure of a plastic mold, including a bottom plate, four vertical bars are fixed on the top of the bottom plate, and one of the top ends of the four vertical bars A top plate is fixed between them, a cylinder is fixed on the top of the top plate, the output end of the cylinder runs through the top plate and extends to the bottom of the top plate, a connection plate is fixed on the output end of the cylinder, and both sides of the top of the connection plate are fixed There are connecting rods, the tops of the two connecting rods go through the top plate and extend to the top of the top plate, the outer surfaces of the two connecting rods are slidingly connected with the inner surface of the top plate, and the bottom of the connecting plate is fixed with a matching mold , the top of the bottom plate is fixed with a mold base, the top of the mold base is provided with an injection groove, the bottom of the mating mold runs through the injection groove and extends to the inside of the injection groove, and the inside of the injection groove is provided with a primary ejector mechanism, a secondary ejection mechanism is provided on one side of the mold base.

Preferably, the primary ejection mechanism includes an electric telescopic rod fixed on the bottom of the inner wall of the injection tank, a top end of the electric telescopic rod is fixed with a top plate, and the outer surface of the top plate is slidably connected with the inner surface of the injection tank .

Preferably, the secondary ejection mechanism includes a fixed plate fixed on one side of the mold base, an L-shaped plate is fixed on the bottom of the fixed plate, and a driving motor is fixed on the top of the L-shaped plate.

Preferably, the top of the fixed plate is slidably connected with a rack, the two sides of the top of the fixed plate are rotatably connected with rotating shafts, the tops of the two rotating shafts are fixed with half gears, and the teeth of the two half gears are The teeth mesh with the teeth on both sides of the rack, and the bottom ends of the two rotating shafts pass through the fixing plate and extend to the bottom of the fixing plate.

Preferably, the bottom ends of the two rotating shafts are fixed with a first gear, the output end of the drive motor is fixed with a second gear, and the two first gears are meshed with the second gear, and the gear rack A push plate is fixed on one side.

Preferably, the bottom of the push plate is slidably connected with the top of the fixed plate and the mold base, the bottom of the fixed plate is fixed with two support rods, one side of the bottom plate is fixed with a horizontal plate, and the two support rods The bottom end is fixed to the top of the horizontal plate.

Beneficial effect

The utility model provides a secondary ejection structure of a plastic mould. Compared with the prior art, it has the following beneficial effects:

(1) The secondary ejection structure of the plastic mold, through the setting of the primary ejection mechanism, realizes the ejection of the product in the vertical direction, so that the product is separated from the inner wall of the injection molding tank, and it is convenient to use the secondary ejection mechanism. The next ejection.

(2) The secondary ejection structure of the plastic mold, through the setting of the secondary ejection mechanism, realizes the ejection of the product in the horizontal direction, does not need to manually remove the product, improves production efficiency, and uses the push plate Back and forth reciprocating movement can push and clean the overflowing raw materials on the mold base, with high degree of automation and strong practicability.

Description of drawings

Fig. 1 is the perspective view of the external structure of the utility model;

Fig. 2 is a sectional view of the mold base of the present utility model;

Fig. 3 is the rear view of the external structure of the utility model;

Fig. 4 is a perspective view of the secondary ejection mechanism of the present invention.

In the figure: 1. Bottom plate; 2. Vertical bar; 3. Top plate; 4. Cylinder; 5. Connecting plate; 6. Connecting rod; 7. Cooperating mold; mechanism; 11, secondary ejection mechanism; 101, electric telescopic rod; 102, ejector plate; 111, fixed plate; 112, L-shaped plate; 113, driving motor; 114, rack; 115, rotating shaft; 116, half Gear; 117, the first gear; 118, the second gear; 119, the push plate; 1110, the support rod; 1111, the horizontal plate.

Detailed ways

The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. example. Based on the embodiments of the present utility model, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the scope of protection of the present utility model.

Please refer to Figures 1-4, the utility model provides a technical solution: a secondary ejection structure of a plastic mold, including a bottom plate 1, four vertical bars 2 are fixed on the top of the bottom plate 1, and the top ends of the four vertical bars 2 A top plate 3 is fixed between them, and a cylinder 4 is fixed on the top of the top plate 3. The cylinder 4 is an existing technology, controlled by an external switch, and electrically connected to an external power supply. The output end of the cylinder 4 runs through the top plate 3 and extends to the bottom of the top plate 3. Below, the output end of the cylinder 4 is fixed with a connecting plate 5, and both sides of the top of the connecting plate 5 are fixed with connecting rods 6. The outer surfaces of 6 are slidingly connected with the inner surface of the top plate 3, the bottom of the connecting plate 5 is fixed with a matching mold 7, the top of the bottom plate 1 is fixed with a mold base 8, and the top of the mold base 8 is provided with an injection groove 9, and the matching mold 7 is pushed forward. After the injection molding groove 9, the raw material in the groove can be extruded, the matching mold 7 is smaller than the size of the injection molding groove 9, the bottom of the matching mold 7 runs through the injection molding groove 9 and extends to the inside of the injection molding groove 9, and the inside of the injection molding groove 9 is set There is a primary ejection mechanism 10, and one side of the mold base 8 is provided with a secondary ejection mechanism 11.

The primary ejection mechanism 10 includes an electric telescopic rod 101 fixed on the bottom of the inner wall of the injection molding tank 9. The electric telescopic rod 101 is a prior art, controlled by an external switch, and electrically connected to an external power supply. The top end of the electric telescopic rod 101 is fixed with a top The material plate 102, the outer surface of the ejector plate 102 is slidingly connected with the inner surface of the injection groove 9, and through the setting of the ejection mechanism 10 once, the vertical release of the product is realized, so that the product is separated from the inner wall of the injection groove 9 , to facilitate the use of the secondary ejection mechanism 11 for the next step of ejection.

The secondary ejection mechanism 11 includes a fixed plate 111 fixed on one side of the mold base 8, an L-shaped plate 112 is fixed on the bottom of the fixed plate 111, and a driving motor 113 is fixed on the top of the L-shaped plate 112, and the driving motor 113 is controlled by an external switch , and is electrically connected to an external power source.

The top of the fixed plate 111 is slidingly connected with a rack 114, and both sides of the rack 114 are provided with teeth, and both sides of the top of the fixed plate 111 are rotatably connected with a rotating shaft 115, and the tops of the two rotating shafts 115 are fixed with half gears 116 , when the two half gears 116 rotate in the same direction, the teeth of the two half gears 116 mesh with the teeth on both sides of the rack 114, and the bottom ends of the two rotating shafts 115 pass through the fixed plate 111 and extend to the fixed plate 111 at the bottom.

The bottom ends of the two rotating shafts 115 are fixed with a first gear 117, the output end of the driving motor 113 is fixed with a second gear 118, the two first gears 117 are all meshed with the second gear 118, and one side of the rack 114 is fixed with a Push plate 119, push plate 119 can push the product to carry out the ejection of horizontal direction, also can clean up the raw material overflowing at the top of the mold base simultaneously.

The bottom of the push plate 119 is slidably connected with the top of the fixed plate 111 and the mold base 8, the bottom of the fixed plate 111 is fixed with two support rods 1110, one side of the bottom plate 1 is fixed with a horizontal plate 1111, and the bottom ends of the two support rods 1110 It is fixed to the top of the horizontal plate 1111, and through the setting of the secondary ejection mechanism 11, the product is ejected in the horizontal direction, and the product does not need to be removed manually, which improves the production efficiency. The material overflowing on the mold base 8 can be pushed and cleaned, with high degree of automation and strong practicability.

At the same time, the content not described in detail in this specification belongs to the prior art known to those skilled in the art.

When working, first pour the plastic raw materials into the injection molding groove 9, and further start the cylinder 4, so that the cylinder 4 drives the matching mold 7 to rush into the injection molding groove 9, and the product is stamped and finalized. 101, so that the electric telescopic rod 101 drives the ejector plate 102 to slide upwards, and finally the ejector plate 102 is ejected from the product. By starting the drive motor 113, the drive motor 113 drives the second gear 118 and the two first gears 117 to rotate. When the two first gears 117 rotate in the same direction, they drive the two shafts 115 and the half gears 116 to rotate in the same direction. At the same time, the two half gears 116 drive the rack 114 and the push plate 119 to move back and forth. Thrust to drive product launch.

An embodiment of the present utility model has been described in detail above, but the content described is only a preferred embodiment of the present utility model, and cannot be considered as limiting the implementation scope of the present utility model. All equal changes and improvements made according to the application scope of the utility model should still belong to the scope covered by the patent of the utility model.

Claims (6)

1. The utility model provides a plastic mould's secondary ejection structure, includes bottom plate (1), its characterized in that: the top of bottom plate (1) is fixed with four montants (2), four be fixed with roof (3) between the top of montant (2), the top of roof (3) is fixed with cylinder (4), the below of roof (3) is run through to the output of cylinder (4), the output of cylinder (4) is fixed with connecting plate (5), the both sides at connecting plate (5) top all are fixed with connecting rod (6), two the top of connecting rod (6) all runs through roof (3) and extends to the top of roof (3), two the surface of connecting rod (6) all with the internal surface sliding connection of roof (3), the bottom of connecting plate (5) is fixed with cooperation mould (7), the top of bottom plate (1) is fixed with die holder (8), injection molding groove (9) have been seted up at the top of die holder (8), the bottom of cooperation mould (7) runs through injection molding groove (9) and extends to the inside of groove (9), the inside of injection molding groove (9) is provided with ejection mechanism (10), ejection mechanism (11) are once set up.

2. The secondary ejection structure of a plastic mold according to claim 1, wherein: the primary ejection mechanism (10) comprises an electric telescopic rod (101) fixed at the bottom of the inner wall of the injection molding groove (9), a material ejection plate (102) is fixed at the top end of the electric telescopic rod (101), and the outer surface of the material ejection plate (102) is in sliding connection with the inner surface of the injection molding groove (9).

3. The secondary ejection structure of a plastic mold according to claim 1, wherein: the secondary ejection mechanism (11) comprises a fixing plate (111) fixed on one side of the die holder (8), an L-shaped plate (112) is fixed at the bottom of the fixing plate (111), and a driving motor (113) is fixed at the top of the L-shaped plate (112).

4. A secondary ejection structure of a plastic mold according to claim 3, wherein: the top sliding connection of fixed plate (111) has rack (114), the both sides at fixed plate (111) top are all rotated and are connected with pivot (115), and two the top of pivot (115) all is fixed with half gear (116), two the tooth of half gear (116) all meshes with the tooth of rack (114) both sides, and the bottom of two pivot (115) all runs through fixed plate (111) and extends to the bottom of fixed plate (111).

5. The secondary ejection structure of a plastic mold according to claim 4, wherein: the bottom ends of the two rotating shafts (115) are respectively fixed with a first gear (117), the output end of the driving motor (113) is fixed with a second gear (118), the two first gears (117) are respectively meshed with the second gears (118), and a push plate (119) is fixed on one side of the rack (114).

6. The secondary ejection structure of a plastic mold according to claim 5, wherein: the bottom of push pedal (119) and the top sliding connection of fixed plate (111) and die holder (8), the bottom of fixed plate (111) is fixed with two bracing pieces (1110), one side of bottom plate (1) is fixed with diaphragm (1111), two the bottom of bracing piece (1110) is fixed with the top of diaphragm (1111).