Automatic cutter structure for large water gap of PVC (polyvinyl chloride) three-way pipe mold

Abstract

According to the technical scheme, the automatic large-gate cutter structure of the PVC three-way pipe mold comprises a cavity plate, a cavity insert, a core plate and a core insert, a product runner is vertically arranged in the center area of the cavity plate and the center area of the cavity insert, product cavities are formed in the bottom face of the cavity insert and the top face of the core insert respectively, and the product runner is connected with the product cavity. A water inlet communicated with the product cavity and the product runner is formed in the bottom surface of the cavity insert, a mounting frame is arranged on one side of the core plate, a guide rail and an air cylinder are arranged on the mounting frame, a sliding block is mounted on the guide rail in a sliding manner, a cutter is connected to the sliding block, and the position of the cutter corresponds to the position of the water inlet; after the mold is opened, the cylinder is controlled to eject to drive the sliding block to enter the top surface of the core insert, the cutter cuts off residual waste of the product at the water inlet, and the cylinder is reset after cutting off. According to the utility model, after the product injection molding mold is opened, the waste material left at the water gap position on the product is automatically sheared off.

Description

Technical Field

[0001] The utility model relates to a PVC three-way pipe mold, in particular to an automatic cutting knife structure for large water inlets of a PVC three-way pipe mold. Background Art

[0002] PVC three-way pipes are generally injection molded, basically adopting the structure of traditional large water inlets for feeding. After the product is injection molded and demolded, it is necessary to manually cut off the water inlets with a water inlet pliers. The labor intensity is high, one person operates one machine, the production cycle is long, and the labor cost is high. Summary of the Utility Model

[0003] Aiming at the above problems, the utility model aims to provide an automatic cutting knife structure for large water inlets of a PVC three-way pipe mold, which can automatically cut off the waste materials at the water inlet positions remaining on the product after the injection molding mold of the product is opened, and has high working efficiency.

[0004] The technical solution of the utility model is an automatic cutting knife structure for large water inlets of a PVC three-way pipe mold, which includes a cavity plate, a cavity insert, a core plate and a core insert. A product runner is vertically arranged in the central area of the cavity plate and the cavity insert. Product cavities are arranged on the bottom surface of the cavity insert and the top surface of the core insert. An inlet is arranged on the bottom surface of the cavity insert and is communicated with the product cavity and the product runner. An installation frame is arranged on one side of the core plate. A guide rail and a cylinder are arranged on the installation frame. A slider is slidably installed on the guide rail. A cutting knife is connected to the slider, and the position of the cutting knife corresponds to the position of the inlet. After the mold is opened, the cylinder is controlled to eject and drive the slider to enter the top surface of the core insert, and the waste materials remaining at the inlet of the product are cut off by the cutting knife. After cutting, the cylinder resets.

[0005] Preferably, the number of product cavities on the bottom surface of the cavity insert and the top surface of the core insert is two, which are symmetrically arranged on the left and right sides respectively. The inlet is a one-to-two structure and is respectively communicated with the two product cavities on the left and right. The number of cutting knives is two, which are respectively connected to the left and right side surfaces of the slider. When the cylinder pushes the slider forward, the two cutting knives on the left and right simultaneously cut off the waste materials at the inlets of the two products on the left and right.

[0006] The utility model can automatically cut off the waste materials at the water inlet positions remaining on the product after the injection molding mold of the product is opened, and has high working efficiency. Brief Description of the Drawings

[0007] Figure 1 is a structural schematic diagram of the utility model;

[0008] Figure 2 is a structural schematic diagram of the core plate in the utility model;

[0009] Figure 3 is a structural schematic diagram of the cavity plate in the utility model;

[0010] Figure 4 is Figure 2 A structural schematic diagram of the structure after removing some parts from

[0011] Where: 1 - cavity plate; 2 - cavity insert; 3 - core plate; 4 - core insert; 5 - product cavity; 6 - water inlet; 7 - mounting bracket; 8 - guide rail; 9 - cylinder; 10 - slider; 11 - cutting knife; a - product runner. Specific implementation mode

[0012] The following combines with the attached drawings to further elaborate on the present utility model in detail.

[0013] As Figures 1 to 4 shown, the present utility model provides an automatic cutting knife structure for the large water inlet of a PVC tee pipe mold, including a cavity plate 1, a cavity insert 2, a core plate 3, and a core insert 4. A product runner a is vertically arranged in the central areas of the cavity plate 1 and the cavity insert 2. Product cavities 5 are arranged on the bottom surface of the cavity insert 2 and the top surface of the core insert 4. A water inlet 6 communicating with the product cavity 5 and the product runner 3 is arranged on the bottom surface of the cavity insert 2. A mounting bracket 7 is arranged on one side of the core plate 3. A guide rail 8 and a cylinder 9 are arranged on the mounting bracket 7. A slider 10 is slidably mounted on the guide rail 8. A cutting knife 11 is connected to the slider 10, and the position of the cutting knife 11 corresponds to the position of the water inlet 6. After the mold is opened, the cylinder 9 is controlled to eject and drive the slider 10 into the top surface of the core insert 4, and the cutting knife 11 cuts off the waste material remaining at the water inlet 6 of the product. After cutting, the cylinder 9 resets.

[0014] In the above solution, the number of product cavities 5 on the bottom surface of the cavity insert 2 and the top surface of the core insert 4 is two, which are symmetrically arranged on the left and right sides respectively. The water inlet 6 is a one-into-two structure, which respectively communicates with the two product cavities 5 on the left and right. The number of cutting knives 11 is two, which are respectively connected to the left and right side surfaces of the slider 10. When the cylinder 9 pushes the slider 10 forward, the two cutting knives 11 on the left and right simultaneously cut off the waste materials at the water inlets 6 of the two products.

[0015] In the present utility model, when the mold is opened, the cylinder 9 advances forward to drive the slider 10 to move forward, thereby driving the cutting knife 11 to cut off the waste material at the water inlet. After cutting off the waste material, the cylinder 9 retreats backward to drive the slider 10 and the cutting knife 11 to retreat backward, ensuring that the cutting knife 11 is not damaged when the mold is closed.

[0016] The above is only a preferred implementation mode of the present utility model, and does not impose any form of limitation on the utility model. Any simple modification, equivalent change, or decoration made to the above embodiments based on the technical principle of the present utility model still falls within the scope of the technical solution of the present utility model.

Claims

1. A PVC three-way pipe mold large water inlet automatic cutting knife structure, comprising a cavity plate (1), a cavity insert (2), a core plate (3) and a core insert (4), wherein the cavity plate (1) and the cavity insert (2) are vertically provided with a product flow channel (a) in the central area, the bottom surface of the cavity insert (2) and the top surface of the core insert (4) are both provided with a product cavity (5), and the bottom surface of the cavity insert (2) is provided with a water inlet (6) connected with the product cavity (5) and the product flow channel (a), characterized in that: A mounting frame (7) is provided on one side of the core plate (3); a guide rail (8) and a cylinder (9) are provided on the mounting frame (7); a slider (10) is slidably mounted on the guide rail (8); a cutter (11) is connected to the slider (10); and the position of the cutter (11) corresponds to the position of the water inlet (6).

2. The large water inlet automatic cutting knife structure of a PVC three-way pipe mold according to claim 1 is characterized by: The number of product cavities (5) on the bottom surface of the cavity insert (2) and the top surface of the core insert (4) is two, and they are symmetrically arranged on the left and right sides respectively. The water inlet (6) is a one-to-two structure, which is connected to the left and right product cavities (5) respectively. The number of cutters (11) is two, and they are connected to the left and right side surfaces of the slider (10) respectively. When the cylinder (9) pushes the slider (10) forward, the left and right cutters (11) simultaneously cut off the waste materials at the water inlets (6) of the left and right products.

Images