CN209649369U - A high-efficiency injection mold - Google Patents

Abstract

The utility model discloses a kind of efficient injection molds, including dynamic model, sleeve, bottom plate, cover half and top plate, middle position at the top of the bottom plate is equipped with sleeve, a cover half is equidistantly evenly arranged between the marginal position of the bottom plate and top plate, the cover half is all equipped with two sliding slots being parallel to each other with top plate bottom at the top of the bottom plate of sleeve side.The utility model is by being equipped with loose slot in the inside of push-pull rod; and solenoid valve is connected on the push-pull rod lateral wall at loose slot bottom position; during production; it can be in order to controlling whether solenoid valve is connected to; whether adjustment loose slot is in communication with the outside; whether the toothed disc rotation at control different location, which carries out idle running, flogs a dead horse; can in order to during production at different location cover half and dynamic model individually carry out on-line maintenance; it avoids device during to maintain equipment from continuing to influence maintenance toward compound die, promotes working efficiency.

Description

A high-efficiency injection mold

technical field

The utility model relates to the technical field of injection molds, in particular to an efficient injection mold.

Background technique

Injection molding is a tool for producing plastic products, and it is also a tool for giving plastic products a complete structure and precise dimensions. Injection molding is a processing method used in the mass production of certain complex-shaped parts. Specifically, it refers to melting plastic by heat. The injection molding machine is injected into the mold cavity under high pressure, and after cooling and solidification, the molded product is obtained. Although the structure of the mold may vary due to the variety and performance of the plastic, the shape and structure of the plastic product, and the type of the injection machine, the basic structure is the same. , is mainly composed of pouring system, temperature control system, molding parts and structural parts. The injection mold is composed of a moving mold and a fixed mold. The moving mold is installed on the movable template of the injection molding machine, and the fixed mold is installed on the fixed mold of the injection molding machine On the template, the movable mold and the fixed mold are closed to form the gating system and the cavity during injection molding, and the movable mold and the fixed mold are separated to take out the plastic product when the mold is opened.

At present, in the process of injection molding production of existing injection molds, most of them are injection molded with a single movable mold and fixed mold. After the movable mold and fixed mold are closed, preheating, glue injection and cooling are completed. After the step, it is convenient to take out the injection molded product. During the mold clamping and demoulding process of the injection mold, the movable mold and the fixed mold must always be closely connected. The time required for the workpiece to be formed affects the work efficiency of the injection molding production. , and the existing multiple injection molds occupy a large area in the process of actual use, which affects production efficiency.

Utility model content

The purpose of this utility model is to provide a high-efficiency injection mold to solve the problem that in the process of injection molding production of the existing injection molds proposed in the above-mentioned background technology, most of them are a single movable mold and a fixed mold for injection molding production. After the mold and the fixed mold are closed, after completing the steps of preheating, glue injection and cooling and setting, the demoulding is convenient to take the injection molded product. During the process of mold closing and demoulding of the injection mold, the movable mold and the fixed mold need to be kept close at all times. Connection, the time required to wait for the workpiece to be formed affects the work efficiency of injection molding production, and the existing multiple injection molds occupy a large area in the actual use process, which affects production efficiency.

In order to achieve the above object, the utility model provides the following technical solutions: a high-efficiency injection mold, including a movable mold, a sleeve, a bottom plate, a fixed mold and a top plate, a sleeve is arranged at the middle position of the top of the bottom plate, and the bottom plate and There is a fixed mold evenly arranged at equal intervals between the edge positions of the top plate. The top of the bottom plate and the bottom of the top plate on the side of the fixed mold close to the sleeve are provided with two parallel chutes. The bottom plate at the position of the chute There is a movable mold matched with the fixed mold through sliding blocks between the upper plate and the top plate. A return spring is provided between the side of the movable mold far away from the fixed mold and the chute, and the outer wall of the movable mold is close to the fixed mold. There are guide rods at the four corners of the side, and the end of the guide rod away from the movable mold runs through the fixed mold and extends to the outside of the fixed mold. The middle position of the top of the bottom plate inside the sleeve is installed with a driving gear through a rotating shaft. A gear plate is evenly arranged on the inside of the sleeve at the same height on the outside of the drive gear through the rotating shaft. A transmission gear is arranged between the gear plate and the drive gear, and the transmission gear is connected to the gear plate and the drive gear respectively. The side of the top of the gear plate far away from the central axis is equipped with a connecting rod through a bearing, and the outer wall of the sleeve on the side of the gear plate close to the movable mold is provided with a through groove, and the inside of the through groove A push-pull rod is interspersed, and the end of the connecting rod far away from the gear plate is hinged with the push-pull rod. The inside of the push-pull rod near the end of the movable mold is provided with a movable groove, and the inside of the movable groove is interspersed with a fixed rod. One end of the rod is provided with a piston matched with the movable groove, and the other end of the fixed rod is welded with the movable mold.

Preferably, the bottom plate between the fixed mold and the movable mold is provided with a feed chute, and the bottom of the bottom plate at the position of the feed chute is inclined and welded with a material guide plate downward.

Preferably, a solenoid valve is connected to the bottom end of the outer wall of the push-pull rod below the piston, and the solenoid valve communicates with the inside of the movable groove below the piston.

Preferably, support columns are provided between two adjacent material guide plates at the bottom of the bottom plate.

Compared with the prior art, the utility model has the beneficial effects that: the high-efficiency injection mold is arranged with five sets of movable molds and fixed molds at equal intervals between the bottom plate and the top plate, and is evenly arranged at equal intervals inside the sleeve. There are connecting rods hinged on the same side of the outer walls of the five gear discs. During the injection molding process, the drive gear is used to connect the deceleration motor, and the drive gear is used to drive the gears to rotate at the same time, so that the gear discs can achieve a role similar to a cam and drive the connection. The rod shakes and stretches back and forth, and intermittently drives the movable mold at different positions to move to the fixed mold in sequence to realize the action of mold closing. It makes full use of the time required for preheating, liquid injection and cooling and setting in the injection molding production process, and improves the injection molding process. The production efficiency is high, and the floor area required for the same number of injection molds is reduced, and the production efficiency is improved. The lower troughs are evenly spaced on the bottom plate, and the bottom of the bottom plate at the position of the lower chute is inclined downward. Arranged with a material guide plate, in the process of use, it is convenient to collect and unload the injection molding products that are automatically demoulded, and to improve work efficiency. The outer wall of the push-pull rod at the position is connected with a solenoid valve. During the production process, it is convenient to control whether the solenoid valve is connected, adjust whether the movable groove is connected to the outside world, and control whether the rotation of the gear disc at different positions is idling to do useless work. It is convenient to carry out non-stop inspection of the fixed mold and movable mold at different positions during the production process, avoiding the continuous impact of the device on the composite mold during the maintenance of the equipment, and improving work efficiency.

Description of drawings

Fig. 1 is the top view internal structure schematic diagram of the utility model;

Fig. 2 is the front structural schematic diagram of the utility model;

Fig. 3 is a schematic diagram of the internal structure of the push-pull rod of the present invention.

In the figure: 1. Connecting rod; 2. Push-pull rod; 3. Material guide plate; 4. Moving mold; 5. Sleeve; 6. Bottom plate; 11, guide rod; 12, return spring; 13, through groove; 14, chute; 15, gear plate; 16, drive gear; 17, top plate; 18, support column; 19, movable groove; 20, Piston; 21, solenoid valve.

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 Fig. 1-3, a kind of embodiment that the utility model provides: a kind of high-efficiency injection mould, comprises movable mold 4, sleeve 5, bottom plate 6, fixed mold 8 and top plate 17, and the middle position of bottom plate 6 top is set There are sleeves 5, five fixed molds 8 are evenly spaced between the edge positions of the bottom plate 6 and the top plate 17, and the top of the bottom plate 6 on the side of the fixed mold 8 close to the sleeve 5 and the bottom of the top plate 17 are provided with two mutually Parallel chute 14, between the bottom plate 6 and the top plate 17 at the position of the chute 14, the movable mold 4 matched with the fixed mold 8 is slidably connected by a slider, and the side of the movable mold 4 away from the fixed mold 8 is connected to the chute. 14 is provided with a return spring 12, the four corners of the outer wall of the movable mold 4 close to the fixed mold 8 are provided with guide rods 11, and the end of the guide rod 11 away from the movable mold 4 runs through the fixed mold 8 and extends To the outside of the fixed mold 8, the bottom plate 6 between the fixed mold 8 and the movable mold 4 is provided with a feed trough 10, and the bottom of the bottom plate 6 at the position of the feed chute 10 is inclined downward and welded with a material guide plate 3, and the bottom plate 6 Support columns 18 are arranged between two adjacent material guide plates 3 at the bottom, and a drive gear 16 is installed at the top middle position of the base plate 6 inside the sleeve 5 through a rotating shaft, and the sleeve 5 at the same height position on the outside of the drive gear 16 Five gear discs 15 are evenly arranged on the inner side through the rotating shaft at equal intervals. Transmission gears 7 are arranged between the gear discs 15 and the drive gear 16, and the transmission gears 7 are meshed with the gear discs 15 and the drive gear 16 respectively. The top of the gear discs 15 The side far away from the center axis is equipped with a connecting rod 1 through a bearing, and the outer wall of the sleeve 5 on the side of the gear plate 15 close to the movable mold 4 is provided with a through groove 13, and the inside of the through groove 13 is inserted with a push-pull rod 2 , the end of the connecting rod 1 away from the gear plate 15 is hinged with the push-pull rod 2, the inside of the push-pull rod 2 near the end of the movable mold 4 is provided with a movable groove 19, and the inside of the movable groove 19 is interspersed with a fixed rod 9, and one end of the fixed rod 9 There is a piston 20 matched with the movable groove 19, the other end of the fixed rod 9 is welded with the movable mold 4, and the bottom end of the outer wall of the push-pull rod 2 below the piston 20 is connected with a solenoid valve 21, and the solenoid valve 21 is connected to the bottom of the piston 20. The active groove 19 inside is connected.

Working principle: In the process of injection molding production, the gear motor is used to drive the drive gear 16 to rotate, and the drive gear 16 rotates to drive the transmission gear 7 to rotate. Since the transmission gear 7 meshes with the gear plate 15, the gear plate 15 is driven continuously During the rotation of the gear plate 15, one end of the connecting rod 1 is driven to rotate with the gear plate 15 and realize contraction movement, thereby driving the push-pull rod 2 hinged at the other end to perform a reciprocating push-pull movement. The moving distances of the connecting rods 1 on the gear discs 15 are changed sequentially, so that the connecting rods 1 on the five gear discs 15 are sequentially reciprocated, and the production time required for the mold closing process of the single movable mold 4 and the fixed mold 8 is sequentially Complete the clamping of the movable mold 4 and the fixed mold 8 at other positions. After the mold is closed, the solenoid valve 21 is opened. At this time, the movement of the push-pull rod 2 is connected with the outside air, so negative pressure cannot be formed to drive the fixed rod 9 to shrink. Adjust the gear motor Speed, because the gear plate 15 continues to rotate, after the mold clamping at other positions is completed, the injection molding fluid injected into the movable mold 4 and the fixed mold 8 that has completed the mold clamping has been cooled and formed, and the solenoid valve 21 is closed to form a mold inside the movable groove 19. Negative pressure, the contraction of the push-pull rod 2 drives the movable mold 4 away from the fixed mold 8 to realize mold opening, and the injection-molded workpiece falls from the lower trough 10, and falls into the collection frame after being guided by the material guide plate 3 for collection. The movable mold 4 and the fixed mold 8 at the position also complete the injection molding in sequence, realize the mold opening in turn and repeat the mold closing for continuous production. When maintenance is required, the solenoid valve 21 at different positions is controlled to keep the connection state all the time, so that the activities The inside of the groove 19 cannot form a negative pressure, and the movement of the push-pull rod 2 cannot drive the movable mold 4 to move, so that the fixed mold 8 and the movable mold 4 at different positions are no longer produced, and the fixed mold 4 and the movable mold 4 at other positions are not affected. Injection molding production of moving mold 8.

It is obvious to those skilled in the art that the present invention is not limited to the details of the above-mentioned exemplary embodiments, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, no matter from all points of view, the embodiments should be regarded as exemplary and non-restrictive, and the scope of the present invention is defined by the appended claims rather than the above description, so it is intended to fall within the scope of the claims All changes within the meaning and range of equivalents of the required elements are included in the present invention. Any reference sign in a claim should not be construed as limiting the claim concerned.

Claims (4)

1. A high-efficiency injection mold, including a movable mold (4), a sleeve (5), a bottom plate (6), a fixed mold (8) and a top plate (17), characterized in that: the middle of the top of the bottom plate (6) A sleeve (5) is provided at the position, and 5 fixed molds (8) are evenly arranged at equal intervals between the edge positions of the bottom plate (6) and the top plate (17), and the fixed molds (8) are close to the sleeve (5) The top of the bottom plate (6) and the bottom of the top plate (17) on one side are provided with two parallel chute (14), the bottom plate (6) and the top plate (17) at the position of the chute (14) The movable mold (4) matched with the fixed mold (8) is slidably connected through the slider, and the side of the movable mold (4) away from the fixed mold (8) and the chute (14) are provided with The return spring (12), the four corners of the outer wall of the movable mold (4) close to the fixed mold (8) are provided with guide rods (11), and the guide rods (11) are far away from the movable mold (4) One end of the sleeve (8) passes through the fixed mold (8) and extends to the outside of the fixed mold (8). A driving gear (16) is installed at the middle position on the top of the bottom plate (6) inside the sleeve (5) through a rotating shaft. The driving gear (16) On the inside of the sleeve (5) at the same height on the outside, five gear plates (15) are evenly spaced through the rotating shaft, and there are transmission gears between the gear plates (15) and the driving gear (16). (7), and the transmission gear (7) meshes with the gear plate (15) and the drive gear (16) respectively, and the side of the top of the gear plate (15) away from the central axis is equipped with a connecting rod through a bearing ( 1), the outer wall of the sleeve (5) on the side of the gear plate (15) close to the movable mold (4) is provided with a through groove (13), and the inside of the through groove (13) is interspersed with a push-pull rod ( 2), the end of the connecting rod (1) away from the gear plate (15) is hinged with the push-pull rod (2), and the inside of the push-pull rod (2) near the end of the movable mold (4) is provided with a movable groove (19 ), the inside of the movable groove (19) is interspersed with a fixed rod (9), and one end of the fixed rod (9) is provided with a piston (20) matching with the movable groove (19), and the fixed rod (9) The other end is welded with the movable mold (4). 2. A high-efficiency injection mold according to claim 1, characterized in that: the bottom plate (6) between the fixed mold (8) and the movable mold (4) is provided with a feeding chute (10), And the bottom of the bottom plate (6) at the position of the chute (10) is inclined downward and welded with a material guide plate (3). 3. A high-efficiency injection mold according to claim 1, characterized in that: the bottom end of the outer wall of the push-pull rod (2) below the piston (20) is connected with a solenoid valve (21), and the solenoid valve (21) It communicates with the inside of the movable groove (19) below the piston (20). 4. A high-efficiency injection mold according to claim 2, characterized in that: support columns (18) are provided between two adjacent material guide plates (3) at the bottom of the bottom plate (6).