In-mold water gap separating device

Abstract

The utility model relates to a device for separating a water gap in a mold, which is used for separating the water gap of a product in the mold, and comprises a mold cavity for placing the product and the water gap, the mold cavity is enclosed by a front mold and a rear mold, and the front mold is arranged at the upper end of the rear mold; the guide needle is arranged in the rear mold, and the upper end of the guide needle is communicated with the mold cavity; the ejector pin is movably arranged in the guide pin in a penetrating mode, the ejector pin can move in the direction close to or away from the mold cavity, and the ejector pin is used for ejecting the product out of the mold; the ejector plate is arranged at the lower end of the ejector, and an ejector rod is connected to the lower end of the ejector plate and used for driving the ejector plate to move in the direction close to or away from the mold cavity; and the separating device is arranged adjacent to the guide needle and is used for separating the product from the water gap. By adopting the structure, the separation of a product and a water gap in the mold is realized, the manual operation is saved, and the production efficiency of the product is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of nozzle separation, in particular to an in-mold nozzle separation device. Background Art

[0002] In the plastic manufacturing process, the sprue (also called gate or feed port) in the product mold is a key part that connects the plastic product to the mold runner. After injection molding is completed, the sprue needs to be effectively separated in order to remove the complete product. Traditional sprue separation methods include using a shallow sprue structure for automatic demoulding or manually cutting off the sprue head. However, these methods have problems such as low efficiency, unreliable quality, and waste of labor time; some existing technologies use ultrasonic waves for sprue separation, but ultrasonic technology has strict requirements on the material of the product, sprue thickness, etc., and ultrasonic equipment and maintenance are relatively expensive.

[0003] Therefore, there is an urgent need to provide an in-mold water gate separation device to solve the above problems. Utility Model Content

[0004] The purpose of the utility model is to overcome the shortcomings and defects of the prior art and provide a mold nozzle separation device, which realizes the separation of the product and the nozzle in the mold, saves manual operation and improves the production efficiency of the product.

[0005] The purpose of this utility model is achieved through the following technical solutions:

[0006] An in-mold nozzle separation device is used to separate the nozzle of a product in a mold, and is characterized by comprising:

[0007] A mold cavity is used to place the product and the sprue, and the mold cavity is formed by the front mold and the rear mold, and the front mold is arranged at the upper end of the rear mold;

[0008] A guide pin is provided in the rear mold, and the upper end of the guide pin is connected to the mold cavity;

[0009] An ejector pin is movably disposed in the guide pin, and can move in a direction close to or away from the mold cavity, and is used to eject the product from the mold;

[0010] An ejector plate is provided at the lower end of the ejector, and an ejector rod is connected to the lower end of the ejector plate, and the ejector rod is used to drive the ejector plate to move in a direction close to or away from the mold cavity;

[0011] A separation device is provided adjacent to the guide needle, and is used for separating the product from the nozzle.

[0012] Optionally, the guide needles are provided in multiple groups, and the separation devices are also provided in multiple groups, and one separation device is correspondingly connected to one guide needle.

[0013] Optionally, the guide needles and the separation device are each provided in three groups.

[0014] Optionally, the in-mold nozzle separation device further includes a nozzle cutting needle, which is arranged on the inner side of the separation device and is used to guide the separation device.

[0015] Optionally, the in-mold water gate separation device also includes a cold material well and a cold material needle. The cold material well is arranged at the lower end of the mold cavity, the lower end of the cold material needle is connected to the ejector plate, and the upper end is movably arranged in the cold material well.

[0016] Compared with the prior art, the present invention has the following beneficial effects:

[0017] In the present invention, the in-mold sprue separation device includes a mold cavity, a guide pin, an ejector pin, an ejector pin plate, an ejector rod, and a separation device, which is used to separate the sprue of the product in the mold. The mold cavity is used for injection molding and placement of the product, and the mold cavity is formed by a front mold and a rear mold, and the front mold is arranged at the upper end of the rear mold; the guide pin is arranged in the rear mold, and the upper end of the guide pin is connected to the mold cavity to guide the subsequent ejector pin; the ejector pin is movably inserted into the guide pin, and the ejector pin can move in a direction close to or away from the mold cavity to eject the product; the ejector pin plate is arranged at the lower end of the ejector pin, and the lower end of the ejector pin is connected to an ejector rod, and the ejector rod is used to drive the ejector pin plate to move in a direction close to or away from the mold cavity, thereby driving the ejector pin to move in the guide pin to eject the product from the mold cavity; the separation device is arranged adjacent to the guide pin, and the separation device is used to separate the product from the sprue. Through the arrangement of the above components, the separation of the product and the sprue in the mold is achieved, saving manual operation and improving product production efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a structural diagram of the present utility model.

[0019] The above drawings include the following reference numerals:

[0020] 11. Front mold, 12. Back mold, 13. Mold cavity, 2. Guide pin, 31. Ejector pin, 32. Ejector plate, 33. Ejector rod, 4. Separation device, 5. Water nozzle cutting needle. DETAILED DESCRIPTION

[0021] The present invention will be described in further detail below with reference to the embodiments and drawings, but the embodiments of the present invention are not limited thereto.

[0022] In the description of this utility model, it should be noted that, unless otherwise expressly specified or limited, the terms "installed," "provided with," "connected," etc., should be understood in a broad sense. For example, "connected" may refer to a fixed connection, a detachable connection, or an integral connection; it may refer to a mechanical connection or an electrical connection; it may refer to a direct connection or an indirect connection through an intermediate medium; it may refer to internal communication between two components. Those skilled in the art will be able to understand the specific meanings of the above terms in this utility model in specific circumstances.

[0023] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those skilled in the art to which this invention pertains. The terms used herein in the specification of this invention are intended solely for the purpose of describing specific embodiments and are not intended to limit this invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0024] The technical solution of the utility model proposes an in-mold water nozzle separation device, which is used for separating the water nozzles of products in the mold.

[0025] Reference Figure 1 , in this embodiment, including:

[0026] The mold cavity 13 is used to place the product and the sprue. The mold cavity 13 is formed by the front mold 11 and the rear mold 12. The front mold 11 is located at the upper end of the rear mold 12.

[0027] The guide pin 2 is provided in the rear mold 12, and the upper end of the guide pin 2 is connected to the mold cavity 13;

[0028] The ejector pin 31 is movably disposed in the guide pin 2. The ejector pin 31 can move in a direction close to or away from the mold cavity 13. The ejector pin 31 is used to eject the product from the mold.

[0029] The ejector plate 32 is provided at the lower end of the ejector 31. The lower end of the ejector plate 32 is connected to the ejector rod 33. The ejector rod 33 is used to drive the ejector plate 32 to move in a direction close to or away from the mold cavity 13.

[0030] The separation device 4 is provided adjacent to the guide needle 2 and is used to separate the product from the nozzle.

[0031] Optionally, in this embodiment, the in-mold water gate separation device 4 includes a mold cavity 13, a guide pin 2, an ejector pin 31, an ejector plate 32, an ejector rod 33 and a separation device 4, which is used to separate the water gate of the product in the mold. The mold cavity 13 is used for injection molding and placement of the product. The mold cavity 13 is formed by the front mold 11 and the rear mold 12, and the front mold 11 is arranged at the upper end of the rear mold 12, thereby forming a mold cavity 13 for injection molding of the product; the guide pin 2 is arranged in the rear mold 12, and the upper end of the guide pin 2 is connected to the mold cavity 13, which is used to guide the subsequent ejector pin 31, so that the ejector pin 31 is at 90 degrees to the product to eject the product, thereby preventing the ejector pin 31 from causing friction when ejecting the product and the position of the ejector pin 31 from shifting when ejecting the product, causing the product to be deformed. The ejector pin 31 is movably arranged in the guide pin 2. The ejector pin 31 can move in the direction close to or away from the mold cavity 13, thereby ejecting the product. The ejector pin 31 is arranged in the guide pin 2 to prevent the position or angle of the ejector pin 31 from being offset during the movement, thereby causing product defects. The ejector plate 32 is arranged at the lower end of the ejector pin 31. The lower end of the ejector pin 31 is connected to a ejector rod 33. The ejector rod 33 is used to drive the ejector plate 32 to move in the direction close to or away from the mold cavity 13, thereby driving the ejector pin 31 to move in the guide pin 2 to eject the product from the mold cavity 13. The separation device 4 is arranged adjacent to the guide pin 2. The separation device 4 is used to separate the product from the sprue, that is, to separate the product from the glue inlet, so that the ejector pin 31 ejects the product. Through the arrangement of the above components, the separation of the product and the sprue in the mold is achieved, which saves manual operation and improves the production efficiency of the product.

[0032] In this embodiment, the guide needles 2 are provided in multiple groups, and the separation devices 4 are also provided in multiple groups. One group of guide needles 2 corresponds to one group of separation devices 4, that is, multiple groups of products can be injection molded in the mold cavity 13 at the same time. The multiple groups of separation devices 4 cut the water inlet openings between the multiple groups of products, and the ejector pins 31 located in the guide needles 2 move upward to eject the multiple groups of products, thereby improving the production efficiency of the products; further, in this embodiment, the guide needles 2 and the separation devices 4 are both provided with four groups.

[0033] In this embodiment, the in-mold water gate separation device 4 also includes a water gate cutting needle 5, which is arranged on the inner side of the separation device 4. The water gate cutting needle 5 is used to guide the separation device 4. The water gate cutting needle 5 is arranged on the inner side of the separation device 4, that is, the separation device 4 moves along the water gate cutting needle 5 to realize the movement guidance of the separation device 4.

[0034] In this embodiment, the in-mold water gate separation device 4 also includes a cold material well and a cold material needle. The cold material well is arranged at the lower end of the mold cavity 13, which is used to collect and temporarily store the plastic material with a lower temperature that enters the mold first during the injection molding process. This part of the plastic material has a lower temperature and poor fluidity. If it is directly filled into the mold cavity 13, it may cause defects in the product. Therefore, the setting of the cold material well plays a role in collection and temporary storage to prevent product defects; the lower end of the cold material needle is connected to the ejector plate 32, and the upper end is movably inserted into the cold material well, that is, when the mold is opened, the ejector rod 33 moves upward to drive the ejector plate 32 to move upward, thereby driving the cold material needle to movably penetrate the cold material well to eject the plastic material in the cold material well.

[0035] The above-described embodiments merely represent implementation methods of the present invention. While the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the present invention. It should be noted that a person skilled in the art would be able to make various modifications and improvements without departing from the concept of the present invention, and these modifications and improvements fall within the scope of protection of the present invention. Therefore, the scope of protection of the present invention shall be determined by the appended claims.

Claims

1. A mold gate separation device for separating the product in the mold, characterized in that: include: A mold cavity is used to place the product and the sprue, and the mold cavity is formed by the front mold and the rear mold, and the front mold is arranged at the upper end of the rear mold; A guide pin is provided in the rear mold, and the upper end of the guide pin is connected to the mold cavity; An ejector pin is movably disposed in the guide pin, and can move in a direction close to or away from the mold cavity, and is used to eject the product from the mold; An ejector plate is provided at the lower end of the ejector, and an ejector rod is connected to the lower end of the ejector plate, and the ejector rod is used to drive the ejector plate to move in a direction close to or away from the mold cavity; A separation device is provided adjacent to the guide needle, and is used for separating the product from the nozzle.

2. The in-mold nozzle separation device according to claim 1, characterized in that: There are multiple groups of guide needles, and there are multiple groups of separation devices. One separation device is correspondingly connected to one guide needle.

3. The in-mold nozzle separation device according to claim 2, characterized in that: The guide needles and the separation device are both provided with three groups.

4. The in-mold nozzle separation device according to claim 1, characterized in that: The in-mold nozzle separation device further includes a nozzle cutting needle, which is arranged on the inner side of the separation device and is used to guide the separation device.

5. The in-mold nozzle separation device according to claim 1, characterized in that: The in-mold water gate separation device also includes a cold material well and a cold material needle. The cold material well is arranged at the lower end of the mold cavity. The lower end of the cold material needle is connected to the ejector plate, and the upper end is movably inserted into the cold material well.

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