A multi-station injection molding machine

Abstract

The present invention discloses a multi-station injection molding machine, which mainly includes a plasticizing and injection device, a polygonal template, a shot table moving device, and a nozzle moving device; the plasticizing and injection device is located directly above the middle of the polygonal template and is connected to the polygonal template through a ball screw, enabling relative movement in the vertical direction. A number of uniformly arranged nozzles are designed at the bottom end of the injection device; a fixed template is installed on the outside of the polygonal template, and a space for installing a servo motor and a ball screw support is designed on the inside. The servo motor drives the ball screw to rotate to achieve the vertical movement of the plasticizing and injection device; the shot table moving device is realized through a servo motor-ball screw. The servo motor is connected to the ball screw support through a coupling, and the ball screw is connected to the shot table. The present invention realizes the process of one extruder distributing multi-station injection and integrated molding, improves the injection molding efficiency, and the plasticizing and injection device is designed above the middle of the whole, saving the floor space cost, facilitating the placement of more injection molding machines, and increasing the revenue.

Description

Technical Field

[0001] The present invention relates to the field of injection molding machines used in injection molding, and particularly refers to a multi-station injection molding machine. Background Art

[0002] An injection molding machine is a molding device that uses a plastic molding die to make various shaped plastic products from thermoplastic or thermosetting plastics. Injection molding is a cyclic process. Each cycle includes feeding, melting and plasticizing, pressurizing and injecting, die cooling, opening the mold to take out the part, closing the mold after taking out the plastic part, and then entering the next cycle. Each injection molding requires a complete cycle, and none of the steps can be missing. Generally, the cooling time is relatively long, resulting in low production efficiency of finished products. Summary of the Invention

[0003] The technical problem to be solved by the present invention is the insufficient injection molding efficiency of the above-mentioned existing equipment. A multi-station injection molding machine is provided to improve the deficiencies of low injection molding efficiency, reduce production costs and labor costs, improve injection molding efficiency, and shorten the injection molding cycle.

[0004] The present invention is achieved by adopting the following technical solutions: A multi-station injection molding machine mainly includes a plasticizing and injection device, a polygonal template, a shot sleeve moving device, and a nozzle moving device; the plasticizing and injection device is located directly above the middle of the polygonal template and is connected to the polygonal template through a ball screw, enabling relative movement in the vertical direction. The bottom end of the injection device is designed with a number of uniformly arranged nozzles; a fixed template is installed outside the polygonal template, and a space for installing a servo motor and a ball screw support is designed inside. The servo motor drives the ball screw to rotate to achieve the vertical movement of the plasticizing and injection device; the shot sleeve moving device is realized through a servo motor-ball screw. The servo motor is fixed to the ball screw support, and the ball screw is connected to the shot sleeve; the nozzle moving device can achieve the horizontal movement of the nozzle, and the plasticized material is injected into the inside of the molding die after the nozzle penetrates the polygonal template.

[0005] Further, the polygonal template is designed with a ball screw support for supporting the plasticizing and injection device and the ball screw. A servo motor is installed below it, and the servo motor drives the ball screw to rotate.

[0006] Further, a slide seat is connected to the ball screw through a threaded sleeve, and the screw penetrates the slide seat. The side of the slide seat is fixedly connected to the shot sleeve.

[0007] Further, a number of templates are respectively installed on the polygonal template. Moving the mold, clamping the mold, etc. are relatively independent of each other and share the same injection device.

[0008] Further, the nozzle moving device pushes the nozzle to move horizontally through an electric cylinder to achieve the docking of the nozzle with the mold gate.

[0009] Further, there are two ball screws, which are parallel to the polygon template and perpendicular to the sliding seat.

[0010] Further, the nozzle is branched into several strands by the barrel to realize the injection of each cavity respectively.

[0011] Further, the sliding seat is penetrated by the screw rod and is closely connected to the screw rod, and can realize the relative movement in the vertical direction to ensure the accurate docking of the nozzle and the ingate of the mold.

[0012] Compared with the prior art, the beneficial effects of a multi-station injection molding machine of the present invention are as follows: The present invention realizes the process of one extruder distributing multi-station injection and integral molding, improves the injection molding efficiency, and shortens the injection molding cycle. Each molding system is relatively independent and has independent mold clamping mechanisms, ejection mechanisms, etc., which are convenient and fast to operate, maintain, and replace, and improve the use efficiency. The plasticizing injection device is designed above the middle of the whole, saving the factory floor space cost, facilitating the placement of more injection molding machines, and increasing the revenue. Description of the Drawings

[0013] Figure 1 It is a three-dimensional overall schematic diagram of a multi-station injection molding machine of the present invention.

[0014] Figure 2 It is a schematic structural diagram of the plasticizing injection device of a multi-station injection molding machine of the present invention.

[0015] Figure 3 It is a schematic installation diagram of the servo motor-ball screw of a multi-station injection molding machine of the present invention.

[0016] In the figure: 1. Plasticizing injection device, 2. Barrel, 3. Ball screw support, 4. Ball screw, 5. Sliding seat, 6. Polygon template, 7. Fixed template, 8. Movable template, 9. Nozzle, 10. Servo motor, 11. Electric cylinder. Detailed Embodiment

[0017] The following further details the present invention in conjunction with the drawings:

[0018] The technical solution provided by the present invention is a multi-station injection molding machine, as Figure 1 、 2 and Figure 3As shown, it is characterized in that it mainly includes a plasticizing injection device 1, a polygonal template 6, a shooting platform moving device and a nozzle moving device; the plasticizing injection device 1 is located just above the middle of the polygonal template 6, and is connected to the polygonal template 6 through a ball screw 4, so as to realize relative movement in the vertical direction. A plurality of uniformly arranged nozzles 9 are designed at the bottom end of the plasticizing injection device 1; a fixed template 7 is installed on the outer side of the polygonal template 6, and a space for installing a servo motor 10 and a ball screw bracket 3 is designed on the inner side. The servo motor 10 drives the ball screw 4 to rotate to realize the vertical movement of the plasticizing injection device 1; the shooting platform moving device is realized by a servo motor-ball screw, the servo motor 10 is connected to the ball screw bracket 3 through a coupling, and the ball screw 4 is connected to the slide seat; the nozzle moving device can realize the horizontal movement of the nozzle 9, and the nozzle 9 is docked with the mold feed port after passing through the polygonal template 6.

[0019] See also Figure 1 , 2 and Figure 3 During operation, the movable platen 8 and the fixed platen 7 are closed, the servo motor 10 drives the ball screw 4 to rotate, and the vertical movement of the overall plasticizing injection device 1 is realized through the slide 5. Then the nozzle moving device works, and the nozzle 9 is moved horizontally through the axial telescopic movement of the electric cylinder 11, completing the docking of the nozzle 9 and the mold, and performing the injection molding process.

[0020] See also Figure 3 The polygonal template 6 is designed to support the plasticizing injection device 1 and the ball screw bracket 3 of the ball screw 4, and a servo motor 10 is installed thereunder, and the servo motor 10 drives the ball screw 4 to rotate.

[0021] See also Figure 1 and Figure 2 The ball screw 4 is connected to a slide seat 5 through a threaded sleeve, and the screw 4 passes through the slide seat 5, and the side of the slide seat 5 is fixedly connected to the shooting platform 1.

[0022] See also Figure 1 A plurality of fixed mold plates 7 are respectively installed on the polygonal mold plate 6, and the mold shifting, mold locking, ejection mechanism, etc. are relatively independent of each other, and the injection mechanism is the same.

[0023] See also Figure 2 The nozzle moving device pushes the nozzle 9 to move horizontally through the electric cylinder 11 to achieve the docking of the nozzle and the mold inlet.

[0024] See also Figure 1 and Figure 3 There are two ball screws 4, which are parallel to the polygonal template 6 and perpendicular to the slide seat 5.

[0025] See also Figure 2, the nozzle 9 is divided into several strands by the barrel 2 to separately inject materials into each cavity.

[0026] See Figure 1 , the slide seat 5 is penetrated by the lead screw 4 and is tightly connected to the lead screw 4, enabling relative movement in the vertical direction to ensure the precise docking of the nozzle 9 with the mold.

[0027] Finally, it should also be noted that the above-described embodiments are only a preferred solution of the present invention and do not impose any form of limitation on the present invention. There are other variations and modifications without exceeding the technical solutions recorded in the claims.

Claims

1. A multi-station injection molding machine, characterized in that: it mainly includes a plasticizing injection device, a polygonal template, a shot sleeve moving device and a nozzle moving device; the plasticizing injection device is located directly above the middle of the polygonal template and is connected to the polygonal template through a ball screw, enabling relative movement in the vertical direction. A number of evenly arranged nozzles are designed at the bottom of the injection device; a fixed template is installed on the outside of the polygonal template, and a space for installing a servo motor and a ball screw support is designed on the inside. The servo motor drives the ball screw to rotate to achieve the vertical movement of the plasticizing injection device; the shot sleeve moving device is realized through a servo motor-ball screw. The servo motor is fixed to the ball screw support, and the ball screw is connected to the shot sleeve; the nozzle moving device realizes the horizontal movement of each nozzle. After passing through the polygonal template, the nozzle is docked with the mold; a number of templates are respectively installed on the polygonal template. The mold moving and clamping are relatively independent of each other and share the same injection device; the nozzle moving device pushes the nozzle through an electric cylinder, thereby realizing the horizontal movement of the nozzle and completing the injection of the nozzle and the mold docking.

2. A multi-station injection molding machine according to claim 1, characterized in that: the polygonal template is designed and installed with a ball screw support for supporting the plasticizing injection device and the ball screw, and a servo motor is installed below it. The servo motor drives the ball screw to rotate.

3. A multi-station injection molding machine according to claim 1, characterized in that: a slide seat is connected to the ball screw through a threaded sleeve, and the screw penetrates through the slide seat. The side of the slide seat is fixedly connected to the shot sleeve.

4. A multi-station injection molding machine according to claim 1, characterized in that: the nozzle is branched into several strands by the barrel to respectively realize the feeding of each cavity.

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