Multi-section type cooling mechanism for machine barrel

Abstract

A multi-section type cooling mechanism for a machine barrel comprises a barrel body, the barrel body is divided into a discharging section and a feeding section, a discharging opening of the machine barrel is formed in the discharging section, a connecting protrusion is arranged on the outer wall of the end of the feeding section and connected with the discharging section, a liquid inlet channel and a liquid outlet channel are formed in the connecting protrusion, and the liquid inlet channel and the liquid outlet channel are communicated with the discharging section. A cooling channel arranged in the axial direction of the barrel is distributed on the inner circumference of the side wall of the feeding section, a liquid inlet pipe is arranged in the cooling channel, the liquid inlet pipe is communicated with the liquid inlet channel, a liquid passing gap is reserved between the outer wall of the liquid inlet pipe and the inner wall of the cooling channel, and the liquid passing gap is communicated with the liquid outlet channel. The utility model has the advantages that the plurality of cooling channels respectively penetrate through the machine barrel, so that the machine barrel is subjected to multi-section cooling, the temperature of a melt can be kept constant no matter whether mold warm oil or cooling water is introduced into the cooling channels, the temperature of the whole machine barrel can be cooled, materials in the machine barrel can be smoothly fed, and the use effect is good.

Description

TECHNICAL FIELD

[0001] The utility model relates to a kind of machine cylinder cooling device technical field, especially refers to a kind of machine cylinder multi-section cooling mechanism. BACKGROUND

[0002] A kind of injection molding machine cylinder cooling device is disclosed in the present application with the application number CN201510043876.9 and the name of Chinese invention patent application as "a kind of injection molding machine cylinder cooling device", including cylinder and cylinder seat, cylinder seat is sleeved in the outside of cylinder, cylinder seat and cylinder are all set with blanking opening, cylinder seat is equipped with cooling water channel, cooling water channel both ends are equipped with water inlet and water outlet respectively, cooling water channel is located the periphery of blanking opening;Water channel is directly set on cylinder seat, cooling water channel is moved from cylinder to cylinder seat, and other components do not need to be welded.The injection molding machine cylinder cooling device disclosed in the application has the characteristics of simple structure, simple processing technology, good leak-proof effect;Cooling effect is improved, heat transfer to the rear part is effectively prevented, the melting process of plastic is shortened, and the melting efficiency is improved.However, the cooling water channel of the injection molding machine cylinder only covers the periphery of blanking opening, and the arrangement range of the cooling water channel is small, so the structure of the injection molding machine cylinder cooling device needs to be further improved. SUMMARY

[0003] The utility model solves the technical problem that the cooling water channel can cover the feeding position of the cylinder, and realizes the cooling of the cylinder in all parts.

[0004] The utility model discloses a kind of technical solutions for solving the above technical problems: the machine cylinder multi-section cooling mechanism of the utility model, including cylinder body, the cylinder body is divided into blanking section and feeding section, machine cylinder blanking opening is set on blanking section, it is characterized by: connection protrusion is set on the end outer wall of feeding section, the connection protrusion is connected with blanking section, inlet passage and outlet passage are set in the connection protrusion, cooling channel is distributed along the axial direction of cylinder body in the inner circumference of the side wall of feeding section, inlet pipe is set in the cooling channel, the inlet pipe is communicated with inlet passage, there is liquid passage between the outer wall of inlet pipe and the inner wall of cooling channel, the liquid passage is communicated with outlet passage.

[0005] As improvement, the inlet passage can preferably be inlet long hole drilled directly on the connection protrusion, the inlet long hole is distributed along the circumference of the connection protrusion, and adjacent inlet long holes are communicated, and the end opening of the inlet long hole is sealed by bolt.

[0006] Further improvement, the outlet passage can preferably be outlet long hole drilled directly on the connection protrusion, the outlet long hole is distributed along the circumference of the connection protrusion, and adjacent outlet long holes are communicated, and the end opening of the outlet long hole is sealed by bolt.

[0007] As an improvement, the connecting protrusion can preferably be a connecting flange, and the side wall of the connecting flange is spacedly provided with platform faces, and the bolt is connected to the long hole opening of the corresponding platform face.

[0008] As an improvement, the cooling channel is connected to the liquid inlet channel, and a hollow positioning nut can be preferably fixed at the communication opening of the cooling channel and the liquid inlet channel, and the end of the liquid inlet pipe is connected to the positioning nut.

[0009] Further improvement, an end face opening can be preferably provided on the end face of the connecting protrusion, the cooling channel is a long hole structure directly drilled along the axis of the cylinder, and the end face opening is the end opening of the long hole structure, and a bolt is embedded and sealed at each end face opening.

[0010] As an improvement, the machine cylinder discharge port can be preferably eccentrically arranged relative to the discharge section.

[0011] Further improvement, the corresponding inner wall of the cylinder of the machine cylinder discharge port can preferably be a spiral inclined surface capable of increasing the forward thrust of the material.

[0012] As an improvement, a discharge section cooling channel can be preferably arranged in the side wall of the discharge section.

[0013] Further improvement, the discharge section cooling channel can preferably include a front channel, a middle channel surrounding the machine cylinder discharge port, and a rear channel, and the front channel, the middle channel and the rear channel are connected to each other.

[0014] Compared with the prior art, the advantages of the present application are that the side wall of the feeding section is circumferentially provided with a cooling channel arranged along the axis of the cylinder, the cooling channel has multiple and respectively penetrates the machine cylinder, thereby cooling the machine cylinder in multiple sections, whether the cooling channel passes through the mold temperature oil or the cooling water, it is beneficial to the constant temperature of the melt, realizes the temperature cooling of the whole machine cylinder, makes the material feeding of the machine cylinder smooth, and has good use effect; the liquid inlet pipe is installed in the cooling channel, the flow distance of the cooling liquid is prolonged, the heat of the machine cylinder is fully taken away, and it is also helpful to avoid the backflow of the cooling liquid and reduce the energy consumption of the cooling liquid circulation; the liquid inlet channel, the liquid outlet channel, the cooling channel and the discharge section cooling channel are directly processed on the cylinder by drilling, thereby reducing the manufacturing difficulty and facilitating the determination and manufacturing of specific specifications; the machine cylinder discharge port is arranged in a biased single-side inclined manner, can well force extrude the viscous solid material, and can be cut, which is helpful for material feeding and conveying. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 is a perspective view of the embodiment of the present application;

[0016] Figure 2 is Figure 1 a structural exploded view;

[0017] Figure 3 yes Figure 1 Side projection view;

[0018] Figure 4 yes Figure 1 Top view;

[0019] Figure 5 yes Figure 4 Cross-sectional view along line AA;

[0020] Figure 6 yes Figure 4 Cross-sectional view along the BB line;

[0021] Figure 7 yes Figure 4 Cross-sectional view along the CC line;

[0022] Figure 8 yes Figure 4 Cross-sectional view along the DD line;

[0023] Figure 9 yes Figure 4 Cross-sectional view along the EE line;

[0024] Figure 10 yes Figure 4 Cross-sectional view along the FF line;

[0025] Figure 11 yes Figure 2 3D view of the middle and lower material feeding section;

[0026] Figure 12 yes Figure 11 Side projection view;

[0027] Figure 13 yes Figure 12 Cross-sectional view along line GG in the middle;

[0028] Figure 14 yes Figure 2 A 3D view of the middle feeding section;

[0029] Figure 15 yes Figure 14 Exploded structural diagram;

[0030] Figure 16 yes Figure 5 Enlarged view of section I. Detailed Implementation

[0031] The present invention will be further described in detail below with reference to the accompanying drawings and embodiments.

[0032] like Figures 1 to 16As shown, the multi-section cooling mechanism of the barrel of the embodiment comprises a barrel body, which is divided into a discharging section 1 and a feeding section 2. A barrel discharging port 11 is arranged on the discharging section 1. A connecting protrusion 3 is arranged on the outer wall of the end of the feeding section 2. The connecting protrusion 3 is connected with the discharging section 1. The connecting protrusion 3 is provided with an inlet channel 31 and an outlet channel 32. Cooling channels 21 are distributed along the axial direction of the barrel body on the inner circumference of the side wall of the feeding section 2. An inlet pipe 4 is arranged in the cooling channels 21. The inlet pipe 4 is connected with the inlet channel 31. A liquid passing gap is left between the outer wall of the inlet pipe 4 and the inner wall of the cooling channels 21. The liquid passing gap is connected with the outlet channel 32. The inlet channel 31 is an inlet long hole directly drilled on the connecting protrusion 3. The inlet long holes are distributed along the circumference of the connecting protrusion 3 and connected with each other. The end opening of the inlet long hole is sealed by a bolt 5. The outlet channel 32 is an outlet long hole directly drilled on the connecting protrusion 3. The outlet long holes are distributed along the circumference of the connecting protrusion 3 and connected with each other. The end opening of the outlet long hole is sealed by a bolt 5.

[0033] The connecting protrusion 3 is a connecting flange. Platform faces 33 are distributed on the side wall of the connecting flange at intervals. The bolt 5 is connected with the long hole opening of the corresponding platform face 33. The cooling channels 21 are connected with the inlet channel 31. A hollow positioning nut 41 is fixed on the connecting port of the cooling channels 21 and the inlet channel 31. The end of the inlet pipe 4 is connected with the positioning nut 41. An end face opening is arranged on the end face of the connecting protrusion 3. The cooling channels 21 are long hole structures directly drilled along the axial direction of the barrel body. The end face opening is the end opening of the long hole structure. The bolt 5 is embedded and sealed on each end face opening. When the barrel is working, one bolt 5 of each of the inlet channel 31 and the outlet channel 32 is removed. The opening is connected with a circulating pump and a cooling water source through a pipeline. The circulating cooling of the cooling water can be realized. The cooling water flows from the inlet channel 31 along the inlet pipe 4. After flowing out of the other end opening of the inlet pipe 4, the cooling water enters the liquid passing gap and then flows into the outlet channel 32 along the liquid passing gap. Finally, the cooling water leaves the barrel.

[0034] The barrel discharging port 11 is arranged eccentrically relative to the discharging section 1. The corresponding inner wall of the barrel body is a spiral inclined surface 111, which can increase the forward pushing force of the material.

[0035] A discharging section cooling channel is arranged in the side wall of the discharging section 1. The discharging section cooling channel comprises a front channel 12, a middle channel 13 surrounding the barrel discharging port 11, and a rear channel 14. The front channel 12, the middle channel 13, and the rear channel 14 are connected with each other. The front channel 12, the middle channel 13, and the rear channel 14 are also made by directly drilling holes in the barrel. The specific structure can be seen from the drawings. Figures 8 to 10When the barrel is working, open one bolt of the front channel 12 and the rear channel 14, and connect the circulating pump and the cooling water source through the pipe, so as to realize the circulating cooling of the cooling water. The difference from the water path of the feeding section is that the water path of the discharging section is shorter, so the liquid inlet pipe 4 is not needed.

Claims

1. A multi-section cooling mechanism for a barrel, comprising a barrel body divided into a feeding section (1) and a conveying section (2), wherein the feeding section (1) is provided with a barrel feeding port (11), characterized in that: A connecting protrusion (3) is provided on the outer wall of the end of the feeding section (2). The connecting protrusion (3) is connected to the unloading section (1). A liquid inlet channel (31) and a liquid outlet channel (32) are provided in the connecting protrusion (3). A cooling channel (21) is distributed along the cylinder axis on the inner circumference of the side wall of the feeding section (2). A liquid inlet pipe (4) is provided in the cooling channel (21). The liquid inlet pipe (4) is connected to the liquid inlet channel (31). A liquid passage gap is left between the outer wall of the liquid inlet pipe (4) and the inner wall of the cooling channel (21). The liquid passage gap is connected to the liquid outlet channel (32).

2. The multi-stage cooling mechanism for the barrel according to claim 1, characterized in that: The liquid inlet channel (31) is a long inlet hole drilled directly on the connecting protrusion (3). The long inlet holes are distributed around the circumference of the connecting protrusion (3), and adjacent long inlet holes are connected. The end opening of the long inlet hole is sealed by bolts (5).

3. The multi-stage cooling mechanism for the barrel according to claim 1, characterized in that: The liquid outlet channel (32) is a liquid outlet elongated hole directly drilled on the connecting protrusion (3). The liquid outlet elongated holes are distributed along the circumference of the connecting protrusion (3), and adjacent liquid outlet elongated holes are connected. The end opening of the liquid outlet elongated hole is sealed by bolts (5).

4. The multi-stage cooling mechanism for the barrel according to claim 2 or 3, characterized in that: The connecting protrusion (3) is a connecting flange, and platform surfaces (33) are distributed at intervals on the side wall of the connecting flange. The bolt (5) is connected to the elongated hole opening of the corresponding platform surface (33).

5. The multi-stage cooling mechanism for the barrel according to any one of claims 1 to 3, characterized in that: The cooling channel (21) is connected to the liquid inlet channel (31). A hollow positioning nut (41) is fixed at the connection between the cooling channel (21) and the liquid inlet channel (31). The end of the liquid inlet pipe (4) is connected to the positioning nut (41).

6. The multi-stage cooling mechanism for the barrel according to claim 5, characterized in that: An end face opening is provided on the end face of the connecting protrusion (3). The cooling channel (21) is a long hole structure that is directly drilled along the axial direction of the cylinder. The end face opening is the end opening of the long hole structure. A bolt (5) is fitted and sealed on each end face opening.

7. The multi-stage cooling mechanism for the barrel according to any one of claims 1 to 3, characterized in that: The discharge port (11) of the barrel is eccentrically positioned relative to the discharge section (1).

8. The multi-stage cooling mechanism for the barrel according to claim 7, characterized in that: The inner wall of the cylinder corresponding to the discharge port (11) is a spiral inclined surface (111) that can increase the forward thrust of the material.

9. The multi-stage cooling mechanism for the barrel according to any one of claims 1 to 3, characterized in that: A cooling channel for the feeding section is provided inside the side wall of the feeding section (1).

10. The multi-stage cooling mechanism for the barrel according to claim 9, characterized in that: The cooling channel of the feeding section includes a front channel (12), a middle channel (13) surrounding the feed port (11) of the barrel, and a rear channel (14), which are interconnected.

Images