Injection molding machine

Abstract

The utility model relates to an injection molding machine which comprises an injection molding machine body arranged on a machine frame, a lubricating pump used for supplying oil to a mold closing unit on the injection molding machine body is arranged in a cavity in the machine frame, a protective cover is arranged on the machine frame in a covering mode, and an operation window capable of being opened and closed is arranged on the side wall of the protective cover. And the lubricating pump is arranged on the inner side of the operation window. The protective cover is arranged on the rack, the operating window capable of being opened and closed is formed in the side wall of the protective cover, and the lubricating pump is arranged on the inner side of the operating window, so that an operator can directly observe the state of the lubricating pump through the operating window so as to make judgment and response in time, oil is directly injected into the lubricating pump through the operating window, and the working efficiency is improved. The cost of the injection molding machine is relatively low, and meanwhile, the lubricating pump is always fixed in the cavity in the rack, so that oil leakage is not easy to occur.

Description

TECHNICAL FIELD

[0001] The utility model relates to injection molding equipment technical field, concretely relates to an injection molding machine. BACKGROUND

[0002] The injection molding machine is an industrial equipment widely used in plastic product production, and its core principle is to inject molten plastic material into a mold cavity, and form a specific shape product after cooling and solidification. The injection molding production has the advantages of high automation degree, high production precision and high efficiency. The mold closing mechanism, shooting table guide rail and ejection device and other components in the injection molding machine will produce friction during high-speed movement. Therefore, a lubricating pump in the lubricating system is needed to provide continuous and stable lubricating oil for the moving parts to reduce wear. However, the lubricating pump is usually installed near the mold closing mechanism. Since a protective cover is provided on the injection molding machine, the operator cannot observe the working state of the lubricating pump in time, and the oiling is also inconvenient.

[0003] For example, a Chinese utility model patent with patent number ZL201621053080.8 (publication number CN206159802U) discloses a lubricating pump pulling device for an injection molding machine, which includes an injection molding machine body and a lubricating pump. A fixed protection device is installed around the injection molding machine body, and a pulling device is provided on the fixed protection device. The pulling device includes a lubricating pump pulling box and a guide rail. The lubricating pump is connected to the lubricating pump pulling box, and the lubricating pump pulling box is slidingly connected to the linear guide rail. The lubricating pump can be pulled in and out of the injection molding machine body through the pulling device. The operator can not only directly observe the operation, but also can pull it out to supplement the lubricating oil, which is convenient to operate. However, the device still has the following problems: first, the pulling design of the guide rail causes the oil pipe to frequently bend during stretching, and oil leakage may occur after a long time of use; second, the additional guide rail and lubricating pump pulling box increase the cost of the equipment.

[0004] Therefore, it is necessary to further improve the structure of the injection molding machine. UTILITY MODEL CONTENTS

[0005] The utility model solves the technical problem of the prior art, and provides an injection molding machine which is convenient to oil and observe the working state of the lubricating pump, not easy to leak oil and low in cost.

[0006] The utility model adopts the technical scheme that the injection molding machine comprises:

[0007] The injection molding machine body is arranged on the rack;

[0008] The lubricating pump is arranged in the cavity inside the rack, and is used for supplying oil to the mold closing unit on the injection molding machine body;

[0009] Its characteristic is that it also includes:

[0010] A protective cover is installed on the frame, and an openable and closable operating window is provided on the side wall of the protective cover. The lubrication pump is located inside the operating window.

[0011] To enhance safety, preferably, the protective cover is provided with a connecting part, and the connecting part is equipped with a door for closing the operating window. During the operation of the injection molding machine, molten plastic will splash from the operating window. The door effectively blocks the high-temperature splashes, thus protecting the operator's safety. Furthermore, the door effectively isolates the operator from moving parts, preventing physical contact.

[0012] For ease of observation, the door is preferably transparent. The lubrication pump is located inside the door; by making the door transparent, operators can easily observe the lubrication pump's status while the injection molding machine is operating, allowing for timely judgment and response.

[0013] To further enhance safety, preferably, the door and the protective cover are connected by a locking mechanism. This locking mechanism prevents the door from accidentally opening due to vibrations from the injection molding machine, thus ensuring the safety of the operator.

[0014] To facilitate the supply of lubricating oil, preferably, the lubrication pump includes an oil tank and an oil supply pump, the oil supply pump supplying the lubricating oil in the oil tank to the mold closing unit along the oil pipe. Under the action of the oil supply pump, the lubricating oil in the oil tank can be supplied to the mold closing unit along the oil pipe, thereby preventing wear on the components of the mold closing unit.

[0015] For ease of operation, preferably, the oil tank is equipped with an oil inlet for filling and a flow meter for displaying the tank's status. The operator can directly read the flow meter reading through the door to determine the lubricating oil level in the tank. If the tank is low on oil, the operator can open the door, open the oil inlet, and fill the tank with lubricating oil.

[0016] To isolate impurities, preferably, the mold clamping unit includes a guide rail extending along the length of the frame, a guide sleeve mounted on the guide rail, and a dustproof ring positioned between the guide rail and the guide sleeve. The guide rail plays a crucial supporting and guiding role in the injection molding machine. The dustproof ring between the guide rail and the guide sleeve serves two purposes: firstly, it blocks external impurities, preventing impurity particles from scratching or even jamming the guide rail; secondly, it prevents the lubricating oil on the guide rail from being contaminated by impurity particles.

[0017] To enhance safety, preferably, the injection molding machine body also includes an electrical control unit, and a sensor connected to the electrical control unit is installed on the front baffle of the frame. The sensor is a photoelectric switch connected to the electrical control unit; once it detects operator intrusion, the system automatically alarms and prevents the injection molding machine from proceeding to the next step.

[0018] Compared with the prior art, the advantages of this utility model are as follows: This utility model has a protective cover on the frame, and the side wall of the protective cover has an openable and closable operation window. At the same time, the lubrication pump is placed inside the operation window. The operator can directly observe the status of the lubrication pump through the operation window, so as to make timely judgments and reactions. When the lubrication pump is short of oil, oil can be directly injected into the lubrication pump through the operation window. The cost of the injection molding machine is relatively low. At the same time, the lubrication pump is always fixed in the cavity inside the frame, which makes it less likely to leak oil. Attached Figure Description

[0019] Figure 1 This is a three-dimensional structural diagram of an embodiment of the present utility model;

[0020] Figure 2 This is a front view of an embodiment of the present utility model;

[0021] Figure 3 for Figure 2 Enlarged structural diagram at point A;

[0022] Figure 4 This is a rear view of an embodiment of the present utility model;

[0023] Figure 5 This is an exploded structural diagram of an embodiment of the present invention.

[0024] In the diagram: 1. Injection molding machine body; 2. Frame; 21. Cavity; 3. Lubrication pump; 31. Oil tank; 311. Oil inlet; 32. Oil supply pump; 33. Flow meter; 4. Mold closing unit; 5. Protective cover; 51. Operating window; 6. Connecting part; 7. Door; 8. Locking component; 9. Sensor; 10. Guide sleeve; 11. Electrical control unit. Detailed Implementation

[0025] The present invention will be further described in detail below with reference to the accompanying drawings and embodiments.

[0026] like Figures 1 to 5The diagram shows the preferred embodiment of this utility model. The injection molding machine includes an injection molding machine body 1 mounted on a frame 2. A lubrication pump 3 for supplying oil to the mold clamping unit 4 on the injection molding machine body 1 is installed in a cavity 21 inside the frame 2. A protective cover 5 is provided on the frame 2. An openable and closable operating window 51 is provided on the side wall of the protective cover 5. The lubrication pump 3 is located inside the operating window 51. The operator can directly observe the status of the lubrication pump 3 through the operating window 51, thereby making timely judgments and reactions, and directly injecting oil into the lubrication pump 3 through the operating window 51.

[0027] Because molten plastic splashes from the operating window 51 during injection molding machine operation, in order to improve the safety of the injection molding machine, refer to... Figures 1 to 3 In this embodiment, a connecting part 6 is provided on the protective cover 5. This connecting part 6 is preferably a hinge, to which a door 7 for closing the operating window 51 is hinged. The door 7 can effectively block high-temperature splashes, thereby protecting the operator's safety. Secondly, by providing the door 7, the operator can be effectively isolated from moving parts, thus avoiding physical contact. The door 7 is made transparent, allowing the operator to easily observe the lubrication pump 3 from the outside in. Furthermore, the door 7 is connected to the protective cover 5 by a locking element 8. After lubrication is complete, the door 7 can be closed and locked by the locking element 8, preventing the door 7 from accidentally opening due to vibrations from the injection molding machine, thus ensuring the operator's safety. It should be noted that the connection between the door 7 and the protective cover 5 is not limited to a hinge; the connecting part 6 can also be provided as a slide rail. Correspondingly, the door 7 needs to be configured to slide along the slide rail to open and close the operating window 51.

[0028] refer to Figure 2 and Figure 3 The lubrication pump 3 includes an oil tank 31 and an oil supply pump 32. Under the action of the oil supply pump 32, the lubricating oil in the oil tank 31 can be supplied to the mold closing unit 4 along the oil pipe, thereby avoiding wear on the components of the mold closing unit 4. The oil tank 31 is equipped with an oil inlet 311 for filling oil and a flow meter 33 for displaying the status of the oil tank 31. The operator can directly read the reading on the flow meter 33 through the door 7 to judge the lubricating oil status in the oil tank 31. Once the oil tank 31 is in a state of insufficient oil, the operator can open the door 7 and open the oil inlet 311 to fill the oil tank with lubricating oil.

[0029] refer to Figure 4The mold clamping unit 4 includes a guide rail extending along the length of the frame 2. A guide sleeve 10 is provided on the guide rail, and a dustproof ring is provided between the guide rail and the guide sleeve 10. The guide rail plays an important supporting and guiding role in the injection molding machine. The dustproof ring 10 is provided between the guide rail and the guide sleeve 10. On the one hand, the dustproof ring 10 can block external impurities, thereby preventing impurity particles from scratching or even jamming the guide rail. On the other hand, the dustproof ring 10 can prevent the lubricating oil on the guide rail from being contaminated by impurity particles.

[0030] refer to Figure 5 The injection molding machine body 1 also includes an electrical control unit 11. A sensor 9 connected to the electrical control unit 11 is provided on the front baffle of the frame 2. In this embodiment, the sensor 9 is a photoelectric switch connected to the electrical control unit 11. Once it detects an operator intrusion, the system will automatically alarm and prevent the injection molding machine from proceeding to the next step.

Claims

1. An injection molding machine, comprising: The injection molding machine body (1) is mounted on the frame (2); A lubrication pump (3) is installed in a cavity (21) inside the frame (2) for supplying oil to the mold clamping unit (4) on the injection molding machine body (1); Its features are: It also includes: A protective cover (5) is installed on the frame (2). An openable and closable operating window (51) is provided on the side wall of the protective cover (5). The lubrication pump (3) is located inside the operating window (51).

2. The injection molding machine according to claim 1, characterized in that: The protective cover (5) is provided with a connecting part (6), and the connecting part (6) is provided with a door (7) for closing the operation window (51).

3. The injection molding machine according to claim 2, characterized in that: The door (7) is transparent.

4. The injection molding machine according to claim 2, characterized in that: The door (7) and the protective cover (5) are connected by a locking element (8).

5. The injection molding machine according to claim 1, characterized in that: The lubrication pump (3) includes an oil tank (31) and an oil supply pump (32), which can supply the lubricating oil in the oil tank (31) to the mold closing unit (4) along the oil pipe.

6. The injection molding machine according to claim 5, characterized in that: The oil tank (31) is provided with an oil inlet (311) for filling oil and a flow meter (33) for displaying the status of the oil tank (31).

7. The injection molding machine according to any one of claims 1 to 6, characterized in that: The mold closing unit (4) includes a guide rail extending along the length of the frame (2), a guide sleeve (10) is provided on the guide rail, and a dustproof ring is provided between the guide rail and the guide sleeve (10).

8. The injection molding machine according to claim 7, characterized in that: The injection molding machine body (1) also includes an electrical control unit (11), and a sensor (9) connected to the electrical control unit (11) is provided on the front baffle of the frame (2).

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