Reversible runner insert

Abstract

The utility model discloses a turnable runner insert, which comprises an insert main body and a runner groove arranged on one side surface of the insert main body, the insert main body is embedded into a mold core in a way that the runner groove faces upwards or downwards, and when the runner groove is embedded upwards, the runner groove is communicated with a runner on the mold core. According to the utility model, the direction of the runner groove is changed by turning over the insert main body, so that the communication and cutoff of the mold core runner are realized, the operation is convenient and fast, the workload for processing the insert main body is less, the processing time and the processing cost are effectively saved, and meanwhile, the complexity of the whole structure can be reduced; and excessive occupation of the area of the mold core is avoided.

Description

TECHNICAL FIELD

[0001] The utility model relates to injection molding processing production technical field especially relates to a kind of turnover runner inserts. BACKGROUND

[0002] When the size or feature of existing product is inconsistent, and needs to be opened in a set of mould, it is usually adopted as shown in the runner insert, i.e. when different products need to be produced together, the runner of the runner insert is turned to the same direction as the runner. If different products need to be produced, the runner insert is rotated by 90°, so as to be connected to another product to be produced, and the rotation angle of the runner insert is limited by wave bead screw. However, the method of using the runner insert needs a lot of processing workload, such as processing hexagonal hole and ejector pin hole on the runner insert, and processing through hole of the runner insert on the mold core and thread hole of the wave bead screw on the mold base, and the overall processing procedure is relatively complex. Figure 1 Therefore, the prior art has defects and needs to be improved.

[0003] INVENTION CONTENTS TECHNICAL PROBLEM

[0004] The utility model aims at overcoming the defects of the prior art, and provides a kind of turnover runner inserts.

[0005] The technical scheme of the utility model is as follows: a kind of turnover runner inserts is provided, comprising: insert main body and the runner slot being set on the side surface of the insert main body, the insert main body is embedded in mold core in the way that runner slot faces upwards or downwards, when runner slot faces upwards and is placed, runner slot is communicated with the runner on mold core.

[0006] Further, one end of the insert main body is provided with a through hole, and the through hole is arranged at the end away from the runner slot.

[0007] Further, the two ends of the through hole are respectively provided with counterbores.

[0008] Further, the side edges of the insert main body are respectively chamfered, and the chamfer on the side edge of the end of the insert main body close to the runner slot is different from the chamfer on the side edge of the end away from the runner slot.

[0009] Further, the chamfer adopts round chamfer or bevel chamfer.

[0010] By the above scheme, the utility model changes the orientation of runner slot by turning the insert main body, so as to realize the connection and interruption of mold core runner, which is convenient and fast, and the workload of processing the insert main body is less, effectively saving processing time and processing cost, and the complexity of overall structure can be reduced, avoiding occupying too much area of mold core. BRIEF DESCRIPTION OF DRAWINGS

[0011] Figure 1 It is a structural diagram of the prior art.

[0012] Figure 2 This is a schematic diagram of the structure with the runner groove of the insert body facing upward.

[0013] Figure 3 This is a schematic diagram of the structure with the runner groove of the insert body facing downward.

[0014] Figure 4 This is a structural diagram of the insert body being installed into the mold core with the runner groove facing upward.

[0015] Figure 5 This is a structural diagram of the insert body being installed into the mold core with the runner groove facing downward. DETAILED DESCRIPTION

[0016] The present invention will be described in detail below with reference to the accompanying drawings and specific embodiments.

[0017] See also Figures 2 to 5 The utility model provides a reversible runner insert, comprising: an insert body 1, and a runner groove 2 provided on one side of the insert body 1, the insert body 1 is embedded in the mold core with the runner groove 2 facing upward or downward, and when the runner groove 2 is embedded and placed upward, the runner groove 2 is connected to the runner on the mold core. When it is necessary to connect the runner on the mold core, the insert body 1 is installed into the mold core with the side with the runner groove 2 facing upward, so that the runner groove 2 connects the runner of the mold core, meeting the requirements of injection molding of the product. When it is not necessary to perform injection molding of the corresponding product through the runner insert, the insert body 1 is flipped 180° so that the side with the runner groove 2 faces downward, and the runner on the mold core is blocked by the insert body 1, thereby preventing the glue from flowing into the runner on one side of the product.

[0018] In the present invention, the direction of the flow channel 2 is changed by directly flipping the insert body 1, thereby realizing the connection and cutoff of the core flow channel. The operation is convenient and quick, and the workload of processing the insert body 1 is less, which effectively saves processing time and processing costs. At the same time, it can reduce the complexity of the overall structure and avoid excessive occupation of the core area.

[0019] In some embodiments, a through hole 3 is provided at one end of the insert body 1, and the through hole 3 is provided at the end away from the runner groove 2. During installation, the insert body 1 is fixed by passing a screw through the through hole 3 and locking it in the mold core.

[0020] In some embodiments, countersunk holes 4 are provided at both ends of the through hole 3. The countersunk holes 4 facilitate the head of the screw to be received in the countersunk holes 4 when the screw is tightened, thereby preventing the head of the screw from protruding above the upper surface of the insert body 1 and the mold core and affecting the mold closing.

[0021] In some embodiments, the side edges of the insert body 1 are chamfered 5 respectively, and the chamfer 5 on the side edge of the insert body 1 close to the runner groove 2 is different from the chamfer 5 on the side edge away from the runner groove 2. In some optional embodiments, the chamfer 5 is rounded or beveled. By setting different chamfers 5 on the side edges at both ends of the insert body 1, the matching of the chamfers 5 can play a fool-proof role when the insert body 1 is installed in the mold core. A set of identical chamfers 5 is set on the side edge at one end close to the runner groove 2, and another set of identical chamfers 5 is set on the side edge at one end away from the runner groove 2, so that when the insert body 1 is turned over, the insert body 1 can be smoothly installed in the mold core.

[0022] To sum up, the utility model changes the direction of the flow channel by flipping the insert body, thereby realizing the connection and cutoff of the core flow channel. The operation is convenient and quick, and the workload of processing the insert body is less, which effectively saves processing time and processing costs. At the same time, it can reduce the complexity of the overall structure and avoid excessive occupation of the core area.

[0023] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements and improvements made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A reversible flow channel insert, characterized in that: include: An insert body and a flow channel groove arranged on one side of the insert body. The insert body is embedded in the mold core with the flow channel groove facing upward or downward. When the flow channel groove is embedded upward, the flow channel groove is connected to the flow channel on the mold core.

2. The reversible runner insert according to claim 1, characterized in that: A through hole is provided at one end of the insert body, and the through hole is provided at an end away from the flow channel groove.

3. The reversible runner insert according to claim 2, characterized in that: Countersunk holes are respectively provided at both ends of the through hole.

4. The reversible runner insert according to claim 1, characterized in that: The side edges of the insert body are chamfered respectively, and the chamfer on the side edge of the insert body close to one end of the flow channel groove is different from the chamfer on the side edge away from one end of the flow channel groove.

5. The reversible runner insert according to claim 4, characterized in that: The chamfer is a rounded corner or a beveled corner.

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