Plastic mold ejection structure

Abstract

The utility model discloses a plastic mould ejection structure which comprises a base, a base plate, a motor and a mould main body, the base plate is fixedly installed on the upper surface of the base, the mould main body is fixedly installed on the upper surface of the base plate, and the motor is fixedly installed inside the front end of the base and located above the front end of the base. A threaded rod is fixedly mounted at the output end of the motor, and a top plate is arranged in the base. According to the ejection structure of the plastic mold, through the mode that the base, the motor, the threaded rod and the ejection plate are matched with one another, when the ejection rod needs to be replaced, the motor is controlled to be started through external equipment, the motor drives the threaded rod to rotate, and the rotating threaded rod promotes the ejection plate to continuously descend; and after the ejector rod retreats from the mold, the ejector rod can be folded, and at the moment, the ejector plate can be pulled out from the interior of the base through the through hole, so that the disassembly of the ejection structure is conveniently completed.

Description

Technical Field

[0001] The utility model relates to the technical field of plastic molds, in particular to a plastic mold ejection structure. Background Art

[0002] Injection molding is a processing method in which hot-melt plastic material is injected at high speed into a closed mold cavity with the desired shape. After the plastic material cools and solidifies, the mold is opened to eject the solidified plastic product to obtain a molded product. Due to the advantages of low molding cost, short molding cycle, simple molding process and easy molding of plastic products with complex shapes, the injection molding method is widely used in the field of plastic products.

[0003] However, the current ejection structure has some shortcomings. The ejection structure mainly relies on the ejector rod to eject the product, and the installation position of the ejector rod is fixed. In addition, the ejector rod has a certain length, so when the ejector rod needs to be replaced, the ejector rod cannot be conveniently disassembled and replaced. Utility Model Content

[0004] The main purpose of the present invention is to provide a plastic mold ejection structure that can effectively solve the problems in the background art.

[0005] In order to achieve the above purpose, the technical solution adopted by the utility model is:

[0006] A plastic mold ejection structure includes a base, a pad, a motor and a mold body. The pad is fixedly mounted on the upper surface of the base, the mold body is fixedly mounted on the upper surface of the pad, a motor is fixedly mounted inside and above the front end of the base, a threaded rod is fixedly mounted on the output end of the motor, and an ejector plate is provided inside the base.

[0007] Preferably, lifting grooves are longitudinally provided on the front and rear surfaces of the base, a groove is provided on the front surface of the base above the lifting grooves, and openings are provided on both sides of the front surface of the base below the lifting grooves.

[0008] Preferably, a guide rod is fixedly installed on the inner upper surface of the lifting groove at the rear of the base, the motor is fixedly installed in the groove, the lower end of the threaded rod extends into the lifting groove on the front surface of the base, and the lifting groove on the front surface of the base is connected to the through port.

[0009] Preferably, a No. 1 mounting seat is fixedly installed on the upper surface of the top plate and close to the front two sides, and a No. 2 mounting seat is fixedly installed on the upper surface of the top plate and located on the rear two sides, and a top rod is movably installed inside the No. 1 mounting seat and the No. 2 mounting seat.

[0010] Preferably, a threaded sleeve is fixedly installed on the front surface and in the middle of the top plate, and a sliding sleeve is fixedly installed on the rear surface and in the middle of the top plate.

[0011] Preferably, the threaded sleeve is sleeved on the surface of the threaded rod, and the sliding sleeve is sleeved on the surface of the guide rod.

[0012] Preferably, the upper end of the ejector rod passes through the pad and extends into the interior of the mold body, and the lengths of the guide rod and the threaded rod are smaller than the length of the lifting slot.

[0013] Compared with the prior art, the present invention has the following beneficial effects:

[0014] In the utility model, by arranging the base, the motor, the threaded rod and the ejector plate to cooperate with each other, when the ejector plate needs to be replaced, the motor is started by controlling the external device, the motor drives the threaded rod to rotate, and the rotating threaded rod causes the ejector plate to continuously descend until the threaded sleeve of the ejector plate is separated from the threaded rod. After the ejector plate is withdrawn from the mold, the ejector plate can be folded and placed. At this time, the ejector plate can be pulled out from the inside of the base through the through opening, thereby conveniently completing the disassembly of the ejection structure. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is the overall structural diagram of a plastic mold ejection structure of the utility model;

[0016] Figure 2 This is a base structure diagram of a plastic mold ejection structure of the utility model;

[0017] Figure 3 This is a top plate structure diagram of a plastic mold ejection structure of the present utility model.

[0018] In the figure: 1. Base; 101. Groove; 102. Lifting groove; 103. Through port; 104. Guide rod; 2. Motor; 3. Threaded rod; 4. Top plate; 401. Threaded sleeve; 402. Sliding sleeve; 403. Mounting seat No. 2; 404. Mounting seat No. 1; 405. Top rod; 5. Pad; 6. Mold body. DETAILED DESCRIPTION

[0019] In order to make the technical means, creative features, objectives and effects achieved by the present invention easier to understand, the present invention is further described below in conjunction with specific implementation methods.

[0020] like Figure 1-3The figure shows a plastic mold ejection structure, which includes a base 1, a pad 5, a motor 2 and a mold body 6. The pad 5 is fixedly mounted on the upper surface of the base 1, and the mold body 6 is fixedly mounted on the upper surface of the pad 5. The motor 2 is fixedly mounted inside and above the front end of the base 1, and a threaded rod 3 is fixedly mounted on the output end of the motor 2. A top plate 4 is provided inside the base 1.

[0021] The front and rear surfaces of the base 1 are longitudinally provided with lifting grooves 102, the front surface of the base 1 and above the lifting grooves 102 are provided with grooves 101, and the front surface of the base 1 and both sides below the lifting grooves 102 are provided with through openings 103, and the through openings 103 can make the top plate 4 separated from the threaded rod 3 after descending be pulled out from the inside of the base 1; the inner upper surface of the lifting groove 102 at the rear of the base 1 is fixedly installed with a guide rod 104, the motor 2 is fixedly installed in the groove 101, the lower end of the threaded rod 3 extends into the lifting groove 102 on the front surface of the base 1, the lifting groove 102 on the front surface of the base 1 is communicated with the through opening 103, and the cooperation of the guide rod 104 and the sliding sleeve 402 can assist the vertical lifting of the top plate 4; the upper surface of the top plate 4 and the two sides near the front are fixedly installed There is a No. 1 mounting seat 404, and a No. 2 mounting seat 403 is fixedly installed on the upper surface of the top plate 4 and on both sides of the rear. The No. 1 mounting seat 404 and the No. 2 mounting seat 403 are movably installed inside the No. 1 mounting seat 404 and the No. 2 mounting seat 403. When the top plate 4 rises, the top rod 405 can be used to complete the demoulding of the molded part in the mold body 6; the front surface of the top plate 4 and the middle part are fixedly installed with a threaded sleeve 401, and the rear surface of the top plate 4 and the middle part are fixedly installed with a sliding sleeve 402; the threaded sleeve 401 is sleeved on the surface of the threaded rod 3, and the sliding sleeve 402 is sleeved on the surface of the guide rod 104. The rotating threaded rod 3 can control the lifting and lowering of the top plate 4; the upper end of the ejector rod 405 passes through the pad 5 and extends into the interior of the mold body 6, and the length of the guide rod 104 and the threaded rod 3 is less than the length of the lifting groove 102.

[0022] It should be noted that the present invention is a plastic mold ejection structure. During use, when the ejector rod 405 needs to be replaced, the motor 2 is started by controlling the external device, and the motor 2 drives the threaded rod 3 to rotate. The rotating threaded rod 3 causes the ejector plate 4 to continuously descend until the threaded sleeve 401 of the ejector plate 4 is separated from the threaded rod 3 and the sliding sleeve 402 is separated from the guide rod 104. After the ejector rod 405 is withdrawn from the mold, the ejector rod 405 can be folded and placed. At this time, the ejector plate 4 can be pulled out from the inside of the base 1 through the through opening 103, thereby conveniently completing the disassembly of the ejection structure.

[0023] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions are merely illustrative of the principles of the present invention. Various changes and improvements may be made to the present invention without departing from the spirit and scope of the present invention. Such changes and improvements are intended to fall within the scope of the present invention. The scope of protection claimed in this invention is defined by the appended claims and their equivalents.

Claims

1. A plastic mold ejection structure, characterized by: The invention comprises a base (1), a pad (5), a motor (2) and a mold body (6); the pad (5) is fixedly mounted on the upper surface of the base (1); the mold body (6) is fixedly mounted on the upper surface of the pad (5); the motor (2) is fixedly mounted inside and above the front end of the base (1); a threaded rod (3) is fixedly mounted on the output end of the motor (2); and a top plate (4) is provided inside the base (1).

2. The plastic mold ejection structure according to claim 1, characterized in that: The front surface and the rear surface of the base (1) are longitudinally provided with lifting grooves (102), the front surface of the base (1) is provided with a groove (101) located above the lifting groove (102), and the front surface of the base (1) is provided with openings (103) on both sides below the lifting groove (102).

3. The plastic mold ejection structure according to claim 2, characterized in that: A guide rod (104) is fixedly mounted on the inner upper surface of the lifting groove (102) at the rear of the base (1); the motor (2) is fixedly mounted in the groove (101); the lower end of the threaded rod (3) extends into the lifting groove (102) on the front surface of the base (1); and the lifting groove (102) on the front surface of the base (1) is communicated with the through port (103).

4. The plastic mold ejection structure according to claim 3, characterized in that: A No. 1 mounting seat (404) is fixedly mounted on the upper surface of the top plate (4) and close to both sides of the front, a No. 2 mounting seat (403) is fixedly mounted on both sides of the upper surface of the top plate (4) and located at the rear, and a push rod (405) is movably mounted inside the No. 1 mounting seat (404) and the No. 2 mounting seat (403).

5. The plastic mold ejection structure according to claim 4, characterized in that: A threaded sleeve (401) is fixedly mounted on the front surface and in the middle of the top plate (4), and a sliding sleeve (402) is fixedly mounted on the rear surface and in the middle of the top plate (4).

6. The plastic mold ejection structure according to claim 5, characterized in that: The threaded sleeve (401) is sleeved on the surface of the threaded rod (3), and the sliding sleeve (402) is sleeved on the surface of the guide rod (104).

7. The plastic mold ejection structure according to claim 6, characterized in that: The upper end of the ejector rod (405) passes through the pad (5) and extends into the interior of the mold body (6). The lengths of the guide rod (104) and the threaded rod (3) are smaller than the length of the lifting groove (102).

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