CN204820277U - Spiral pay -off internal heating injection molding machine - Google Patents

Abstract

The utility model discloses a spiral feeding internal heating injection molding machine, which comprises a frame, an outer cylinder, an extruder head, a feeding device, a rotating motor, an inner cylinder and a burner. The inner cylinder is set as a hollow structure, and the inner cylinder The outer wall is provided with continuous spiral pieces, the right end of the inner cylinder is connected with a fire inlet pipe, and the left end of the inner cylinder is connected with a fire outlet pipe. The fire inlet pipe is provided with a sprocket, and the sprocket is connected with the rotating motor through a chain; The inner cylinder is covered with an outer cylinder, and both ends of the outer cylinder are provided with bearings, and the fire inlet and outlet pipes pass through the bearings and are connected to the bearings in rotation. The outer cylinder is fixedly arranged on the frame, The right end of the outer cylinder is provided with a feeding device, and the left end of the outer cylinder is provided with an extruder head for extruding plastic parts; the fire inlet pipe of the inner cylinder is connected with a burner. The utility model provides a screw-feeding internal heating injection molding machine. This design effectively improves the melting efficiency and the productivity of plastic parts, and saves the production cost.

Description

A spiral feeding internal heating injection molding machine

technical field

The utility model relates to a screw feeding internal heating injection molding machine, which belongs to the technical field of injection molding machines.

Background technique

Injection molding machine, also known as injection molding machine or injection machine, is the main molding equipment for making thermoplastic or thermosetting materials into various shapes of plastic products using plastic molding molds. The working principle of the injection molding machine is similar to that of the syringe used for injection. It is the process of injecting the plasticized molten plastic into the closed mold cavity with the thrust of the screw, and obtaining the finished product after curing and setting. Common injection molding machines mostly use electric heating, and use the heating ring distributed outside the barrel to heat and plasticize the material in the barrel. This method has a low thermal melting rate, can only use electric energy, and cannot use other heat energy, and cannot improve the energy-saving effect.

Utility model content

Purpose: In order to overcome the deficiencies in the prior art, the utility model provides a spiral feeding internal heating injection molding machine.

Technical solution: In order to solve the above-mentioned technical problems, the technical solution adopted in the utility model is:

A spiral feeding internal heating injection molding machine, including a frame, an outer cylinder, an extruder head, a feeding device, a rotating motor, an inner cylinder, and a burner, the inner cylinder is set as a hollow structure, and the outer wall of the inner cylinder is provided with continuous Spiral piece, the right end of the inner cylinder is connected with a fire inlet pipe, and the left end of the inner cylinder is connected with a fire outlet pipe. The fire inlet pipe is provided with a sprocket, and the sprocket is connected with the rotating motor through a chain; An outer cylinder is connected, and there is a gap between the inner cylinder and the outer cylinder. Bearings are installed at both ends of the outer cylinder. The fire inlet and outlet pipes pass through the bearings and are connected to the bearings in rotation. The outer cylinder is fixed Set on the frame, the right end of the outer cylinder is provided with a feeding device, and the left end of the outer cylinder is provided with an extruder head for extruding plastic parts; the fire inlet pipe of the inner cylinder is connected to the burner .

The extruder head includes an extruder head and a die head, and a discharge channel is arranged in the extruder head, and the discharge channel communicates with the left end of the outer cylinder and the inner cylinder; the left end of the extruder head is provided with A die head for extruding a plastic part.

The distance between the spiral pieces on the outer wall of the inner cylinder gradually narrows from the right end to the left end.

The feeding device includes a feeding hopper, a feeding screw, and a feeding motor. The feeding hopper is arranged on the top of the right end of the outer cylinder, and the feeding screw is arranged in the feeding hopper. The feeding motor and the feeding screw connected.

As a preferred solution, an insulation layer is also included, and the insulation layer is sleeved on the outer surface of the outer cylinder.

Beneficial effects: The utility model provides a spiral feeding internal heating injection molding machine, through the structural design of the inner cylinder, the internal heating method of the plastic raw material is realized. This heating method can use the heat provided by the burner, and the burner can use garbage fuel, which is conducive to energy saving and environmental protection. In addition, the extruder head can be replaced as required to extrude molded plastic parts of different shapes. This design effectively improves the melting efficiency and the productivity of plastic parts, and saves the production cost.

Description of drawings

Fig. 1 is the structural representation of the utility model;

Figure 2 is a schematic structural view of the inner cylinder.

Detailed ways

Below in conjunction with accompanying drawing, the utility model is described further.

As shown in Figures 1 and 2, a screw-feeding internal heating injection molding machine includes a frame 1, an outer cylinder 2, an extruder head 3, a feeding device 4, a rotating motor 5, an inner cylinder 6, and a burner 7. The inner cylinder 6 is set as a hollow structure, the outer wall of the inner cylinder 6 is provided with a continuous spiral piece 8, the right end of the inner cylinder 6 is connected with a fire inlet pipe 9, and the left end of the inner cylinder 6 is connected with a fire outlet pipe 10, and the fire inlet pipe 9 is provided with a sprocket 11, and the sprocket 11 is connected with the rotating motor 5 through a chain 12; the inner cylinder 6 is covered with an outer cylinder 2, and a gap is arranged between the inner cylinder 6 and the outer cylinder 2. Both ends of the outer cylinder 2 are provided with bearings 13, the fire inlet pipe 9 and the fire outlet pipe 10 pass through the bearings 13, and are rotatably connected with the bearings 13, the outer cylinder 2 is fixedly arranged on the frame 1, and the outer cylinder 2 The right end of 2 is provided with a feeding device 4, and the left end of the outer cylinder 2 is provided with an extruder head 3 for extruding plastic parts; the fire inlet pipe 9 of the inner cylinder 6 is connected with the burner 7.

The extruder head 3 includes an extrusion head 31 and a die head 32, and the extrusion head 31 is provided with a discharge channel 33, and the discharge channel 33 communicates with the left end of the outer cylinder 2 and the inner cylinder 6; The left end of the extrusion head 31 is provided with a die head 32, and the die head 32 is used for extruding plastic parts.

The distance between the helical pieces 8 on the outer wall of the inner cylinder 6 gradually narrows from the right end to the left end.

The feeding device 4 includes a feeding hopper 41, a feeding screw 42, and a feeding motor 43. The feeding hopper 41 is arranged on the top of the right end of the outer cylinder 2, and the feeding screw 42 is arranged in the feeding hopper 41. The feed motor 43 is connected with the feed screw 42.

As a preferred solution, an insulation layer 14 is also included, and the insulation layer 14 is sleeved on the outer surface of the outer cylinder 2 .

The specific usage method is as follows: when in use, the plastic raw material is discharged from the inlet of the feeding hopper, pushed into the gap between the outer cylinder and the inner cylinder under the push of the feeding screw, and the inner cylinder rotates through the action of the rotating motor , the spiral piece on the outer wall of the inner cylinder keeps pushing the plastic material forward; at the same time, the burner continuously uses the garbage fuel to provide a steady stream of heat for the inner cylinder through the fire inlet pipe, which can quickly melt the plastic material; the melted Plastic raw materials flow into the discharge channel of the extrusion head, and then pass through the mold head to extrude the formed plastic tube; the mold head can be replaced to extrude plastic parts of different shapes.

The above is only a preferred embodiment of the utility model, it should be pointed out that for those of ordinary skill in the art, without departing from the principle of the utility model, some improvements and modifications can also be made. Retouching should also be regarded as the scope of protection of the present utility model.

Claims (5)

1. A spiral feeding internal heating injection molding machine, comprising a frame, an outer cylinder, an extruder head, a feeding device, and a rotating motor, characterized in that: it also includes an inner cylinder and a burner, and the inner cylinder is set as a hollow structure , the outer wall of the inner cylinder is provided with continuous spiral pieces, the right end of the inner cylinder is connected with a fire inlet pipe, the left end of the inner cylinder is connected with a fire outlet pipe, and the fire inlet pipe is provided with a sprocket, and the sprocket is connected to the rotating motor through a chain. The inner cylinder is connected with the outer cylinder, and there is a gap between the inner cylinder and the outer cylinder, and the two ends of the outer cylinder are provided with bearings, and the fire inlet and outlet pipes pass through the bearings and connect with the bearings The outer cylinder is fixedly arranged on the frame, the right end of the outer cylinder is provided with a feeding device, and the left end of the outer cylinder is provided with an extruder head for extruding plastic parts; the inner cylinder The fire inlet pipe is connected with the burner. 2. A screw-feeding internal heating injection molding machine according to claim 1, characterized in that: said extrusion head comprises an extrusion head and a die head, said extrusion head is provided with a discharge channel, said The discharge channel communicates with the left end of the outer cylinder and the inner cylinder; the left end of the extrusion head is provided with a die head, and the die head is used for extruding plastic parts. 3. The screw-fed internal heating injection molding machine according to claim 1, wherein the distance between the spiral pieces on the outer wall of the inner cylinder gradually narrows from the right end to the left end. 4. A spiral feeding internal heating injection molding machine according to claim 1, characterized in that: the feeding device includes a feeding hopper, a feeding screw, and a feeding motor, and the feeding hopper is arranged on the top of the right end of the outer cylinder , the feeding screw is arranged in the feeding hopper, and the feeding motor is connected with the feeding screw. 5 . The screw-feed internally heated injection molding machine according to claim 1 , further comprising an insulating layer, and the insulating layer is sleeved on the outer surface of the outer cylinder. 6 .