Self-cleaning system for mold replacement of injection molding machine

Abstract

The utility model discloses a self-cleaning system for replacing a mold of an injection molding machine, which comprises a gantry crane, an airlock self-cleaning chamber with a set height from the ground is arranged in the working stroke of the gantry crane, and the airlock self-cleaning chamber is arranged between a mold room and an injection molding room. Automatic induction doors capable of being interlocked are arranged on the two side faces of the airlock self-cleaning chamber in the movement direction of the air crane, the top end of the airlock self-cleaning chamber is communicated with an air supply pipe, and the bottom end of the airlock self-cleaning chamber is communicated with an air return pipe. According to the system, the air crane is used for transferring the mold, and the airlock self-cleaning chamber is arranged in the transferring process, so that the space can be reasonably utilized, the mold replacement efficiency is greatly improved, and the ground is not damaged.

Description

Technical Field

[0001] The utility model belongs to the technical field of medicine production, and particularly relates to a self-cleaning system for replacing a mold of an injection molding machine. Background Art

[0002] Injection molding machine, also known as injection molding machine or injection machine, is the main molding equipment that uses plastic molding molds to make plastic products of various shapes from thermoplastics or thermosetting plastics. The production process of disposable medical plastic instruments, plastic human organs for surgery, medical plastic parts (such as tracheal tubes, airway tubes, intravascular tubes, puncture cannulas), medical plastic packaging materials (eye drop bottles, oral liquid bottles, polyvinyl chloride plastic bottles, low-density polyethylene ointment tubes) and other medical and pharmaceutical packaging and consumables, medical devices and other products are mostly injection molded using injection molding machines. Since pharmaceutical factories produce a large number of product types and specifications, the frequency of mold replacement in the production process is very high. Since the injection molding machine is placed in the clean production area and the mold is uniformly placed in the mold warehouse outside the clean area, when the mold is replaced, the mold needs to be self-cleaned first, and then transported to the clean area by carts, etc. This method is inefficient, labor-intensive, occupies ground space, and the clean floor is easily damaged during transportation, and the maintenance cost of the product is high. Summary of the invention

[0003] In response to the above-mentioned problems, the purpose of the utility model is to provide a self-cleaning system for replacing molds of injection molding machines. The system utilizes an overhead crane to transport the molds and provides an air-locked self-cleaning chamber during the transportation process, which can rationally utilize space and greatly improve the efficiency of mold replacement without causing damage to the ground.

[0004] The technical solution adopted by the utility model is as follows:

[0005] A self-cleaning system for replacing molds of injection molding machines comprises an overhead crane, wherein an air-locked self-cleaning chamber at a set height from the ground is arranged within the working stroke of the overhead crane, the air-locked self-cleaning chamber is arranged between the mold room and the injection molding room, and the air-locked self-cleaning chamber is provided with interlocking automatic induction doors on both sides along the movement direction of the overhead crane, an air supply duct is connected to one side of the top end of the air-locked self-cleaning chamber, and an air return duct is connected to the other side of the bottom end of the air-locked self-cleaning chamber.

[0006] Preferably, a high efficiency filter is provided in the air supply duct.

[0007] Preferably, the outer walls, floor and ceiling of the air-lock clean room are all made of clean color steel plates.

[0008] Preferably, the return air duct is set at a height from the ground.

[0009] Preferably, the air lock clean room is provided with an inspection platform and a steel ladder.

[0010] Preferably, along the running direction of the overhead crane, a color steel plate partition with a height of 500 mm is provided on both sides of the overhead crane.

[0011] Preferably, the automatic sensing door is made of transparent material.

[0012] Preferably, the air supply duct and the air return duct are located at different positions in the horizontal direction of the air lock clean room.

[0013] The beneficial effects of the utility model are:

[0014] The utility model realizes the cleanliness and long-distance transportation of molds by setting up an aerial crane and a clean room. The molds between molds are transported to the air lock self-cleaning room by the aerial crane for self-cleaning. After self-cleaning, they are transported to the top of the production equipment in the injection molding room in the clean area, and are directly replaced after being lowered. This method can reasonably utilize space, greatly improve the efficiency of mold replacement, and does not cause damage to the ground. The groundbreaking method perfectly solves the long-standing problem of owners in use. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to better reflect the functionality, practicality and safety of the utility model, the following is a brief introduction to the drawings required for use in the implementation mode. It should be understood that the following drawings only show certain embodiments of the utility model and should not be regarded as limiting the scope. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without creative work.

[0016] Figure 1 It is a structural front view of an embodiment of the utility model;

[0017] Figure 2 yes Figure 1 Middle AA section view;

[0018] Figure 3 It is a top view of the structure of an embodiment of the utility model;

[0019] In the figure, 1 is the mold room, 2 is the control area corridor, 3 is the clean area corridor, 4 is the injection molding room, 5 is the air lock self-cleaning room, 6 is the induction door, 7 is the injection molding machine, 8 is the clean overhead crane, 9 is the mold, 10 is the supply air duct, 11 is the return air duct, 12 is the maintenance platform, 13 is the steel ladder, and 14 is the color steel plate partition. DETAILED DESCRIPTION

[0020] In order to enable those skilled in the art to better understand the technical solutions in the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0021] like Figure 1-3 As shown, the utility model discloses a self-cleaning system for replacing molds of injection molding machines, which mainly includes a crane 8, an air lock self-cleaning chamber 5, an automatic induction door 6, an air inlet duct 10 and an air return duct 13. The crane is installed under the ceiling of the clean area from the mold room 1 to the injection molding room 4, and extends to the entire injection molding room. The crane 8 is a dust-free clean crane dedicated to the pharmaceutical clean workshop. The crane is installed at a height of 4.5m from the ground. For cleanliness and beauty, color steel plate partitions 14 with a height of 500mm are set on both sides of the clean crane.

[0022] The air lock clean room is installed above the corridor 2 of the control area, 2.8m above the ground, and adjacent to the injection molding room 4. The length of the air lock clean room 5 is 1.5m and the width is 2.0m. The outer wall, floor and ceiling of the air lock clean room 5 are all clean color steel plates. Along the running direction of the crane, two automatic sensing doors 6 that are perpendicular to the direction of the crane and can be interlocked are set at both ends of the air lock clean room 5. The automatic sensing door is an electric door made of transparent material, and the transparent material is preferably glass. When the crane runs to the air lock clean room with the mold and needs to clean the mold, the automatic sensing door opens the mold to enter the air lock clean room for cleaning. After cleaning, it moves to the injection molding machine position driven by the crane. The cleaning of the mold in the air lock clean room mainly depends on the action of airflow. An air supply pipe 10 with a high-efficiency filter is installed on the upper side of the air lock clean room 5. The air supply pipe is equipped with a high-efficiency filter. Under the rated air volume, the capture efficiency of the most penetrating particle size (MPPS) particles is above 99.95%. A return air duct 11 is set at a height of 150mm from the ground below the other side of the air lock clean room; the impurities on the mold surface are taken away by the return air to achieve the purpose of cleaning. A maintenance platform 12 and a steel ladder 13 with a height of 2.8m are set outside the air lock clean room 5.

[0023] The overhead crane is mainly used to transport molds between mold rooms. The airlock self-cleaning chamber is used for self-cleaning of molds. When the automatic induction electric glass door senses the entry of the mold, it will automatically open. The mold will enter the airlock chamber for self-cleaning for a certain period of time. After the set self-cleaning time is reached, the automatic induction electric glass door will automatically open and the mold will be transported out of the airlock self-cleaning chamber to the top of the injection molding machine where the mold needs to be replaced.

[0024] The above is only a preferred implementation of this patent. It should be pointed out that for ordinary technicians in this technical field, several improvements and substitutions can be made without departing from the technical principles of this patent. These improvements and substitutions should also be regarded as the scope of protection of this patent.

Claims

1. A self-cleaning system for replacing molds of injection molding machines, characterized in that: The invention comprises an overhead crane (8), wherein an air lock self-cleaning chamber (5) at a set height from the ground is arranged within the working stroke of the overhead crane, the air lock self-cleaning chamber is arranged between a mold room (1) and an injection molding room (4), and the air lock self-cleaning chamber is provided with interlocking automatic sensing doors (6) on both sides along the movement direction of the overhead crane, the top side of the air lock self-cleaning chamber is connected to an air supply pipe (10), and the bottom side of the air lock self-cleaning chamber is connected to a return air pipe (11).

2. A self-cleaning system for replacing molds of injection molding machines according to claim 1, characterized in that: A high efficiency filter is arranged in the air supply pipe.

3. A self-cleaning system for injection molding machine mold replacement according to claim 1, characterized in that: The outer walls, floor and ceiling of the air-lock clean room are all made of clean color steel plates.

4. A self-cleaning system for replacing molds of injection molding machines according to claim 1, characterized in that: The return air duct is set at a height from the ground.

5. A self-cleaning system for replacing molds of injection molding machines according to claim 1, characterized in that: The air lock clean room is provided with a maintenance platform (12) and a steel ladder (13).

6. A self-cleaning system for replacing molds of an injection molding machine according to claim 1, characterized in that: Along the running direction of the overhead crane, 500mm high color steel plate partitions are set on both sides of the overhead crane.

7. A self-cleaning system for injection molding machine mold replacement according to claim 1, characterized in that: The automatic induction door is made of transparent material.

8. A self-cleaning system for injection molding machine mold replacement according to claim 1, characterized in that: The air supply duct and the air return duct are located at different positions in the horizontal direction of the air lock clean room.

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