Plastic injection mold convenient for cleaning steam bubbles

Abstract

The utility model relates to a plastic injection mold convenient for cleaning bubbles, which belongs to the technical field of plastic injection molding and comprises a base, an extrusion component arranged at the top of the base and an injection molding component arranged at the top of the base. The extrusion assembly comprises a plurality of hydraulic telescopic rods fixedly installed on the side wall of the base, a mold plate fixedly installed on the side faces of the hydraulic telescopic rods, a mold sleeve movably connected to the top of the base, and a driving motor fixedly installed on the top of the mold sleeve. According to the plastic injection mold convenient to clean the bubbles, a mold sleeve is embedded into a notch formed by the two fixing frames, a control rod is pulled to drive a limiting rod to extrude a limiting spring to contract, the control rod is rotated to drive a movable rod to rotate so that the limiting rod can limit the mold sleeve, and restoring force of the limiting spring extrudes the fixing frames and the limiting rod; and therefore, the limiting rod is pushed to fix the bottom of the die sleeve, and a control valve penetrates through an insertion hole to be connected with a material injection pipe, so that installation of the die sleeve is completed.

Description

Technical Field

[0001] The utility model relates to the technical field of plastic injection molding, in particular to a plastic injection mold which is convenient for cleaning bubbles. Background Art

[0002] Plastic injection molding is a manufacturing technique that uses an injection molding machine to inject molten plastic material into a mold cavity. After cooling and solidifying, the material is formed into a plastic product with a specific shape and size. This process is a common method for mass-producing plastic parts and is widely used in industries such as automotive, electronics, medical, and consumer goods.

[0003] During the plastic injection molding process, bubble formation is a common problem that affects not only the appearance quality of the product but also its mechanical strength. During the injection molding process, if the air inside the mold is not fully exhausted or the injection speed is too fast, causing air to be trapped in the molten plastic, bubbles may form.

[0004] The common way to avoid the generation of bubbles in currently used plastic injection molds is mainly to design reasonable exhaust grooves to ensure that there are sufficient exhaust channels on the parting surface of the mold so that the air in the mold cavity can be smoothly discharged during the injection process. Although this method can avoid the generation of bubbles to a certain extent, since there is no additional treatment of the injection material during the injection molding process, when the injection speed is high, once the gas inside the mold is wrapped by the injection material, bubbles are easily generated. Therefore, a plastic injection mold that is easy to clean bubbles is proposed. Utility Model Content

[0005] In view of the deficiencies in the prior art, the utility model provides a plastic injection mold that is easy to clean bubbles, has the advantages of good flexibility and strong practicality, and solves the problem that bubbles are easily generated in the plastic injection mold during the injection molding process.

[0006] In order to achieve the above-mentioned purpose of good flexibility and strong practicality, the utility model provides the following technical solution: a plastic injection mold that is convenient for cleaning bubbles, comprising a base, an extrusion component arranged on the top of the base, and an injection component arranged on the top of the base.

[0007] Furthermore, the extrusion assembly includes several hydraulic telescopic rods fixedly installed on the side walls of the base, a template fixedly installed on the side of the hydraulic telescopic rod, a mold sleeve movably connected to the top of the base, a drive motor fixedly installed on the top of the mold sleeve, a threaded rod fixedly installed on the side of the drive motor, a connecting plate rotatably connected to the outside of the threaded rod, a movable plate fixedly installed on the side of the connecting plate, and several cleaning rods fixedly installed on the side of the movable plate.

[0008] Furthermore, the base is a U-shaped structure, the side of the hydraulic telescopic rod and the inner wall of the base are fixedly installed, and a sealing pad is provided on the outer side of the template, and the sealing pad and the inner wall of the template sleeve are slidably connected.

[0009] Furthermore, the mold sleeve is a circular structure, and a number of through holes are opened on both side walls of the mold sleeve. The cleaning rod passes through the through holes horizontally and is slidably connected to the side walls of the mold sleeve. A number of small grooves are opened on the surface of the cleaning rod for releasing gas.

[0010] Furthermore, an injection pipe is fixedly installed on the top of the mold sleeve, and a control valve connected with a thread is provided on the top of the injection pipe. The driving motor is a double-headed motor and both ends are fixedly installed on the threaded rod.

[0011] Furthermore, the injection molding component includes a support frame fixedly installed on the top of the base, a movable rod movably connected to the bottom of the support frame, a control rod fixedly installed on the side of the movable rod, a limit spring movably connected to the outside of the movable rod, a limit rod fixedly installed on the side of the movable rod, and a plug hole opened on the top of the support frame.

[0012] Furthermore, a fixing frame is provided at the bottom of the support frame, the movable rod passes through the side wall of the fixing frame horizontally and is slidably connected to the fixing frame, and the bottom of the side of the mold sleeve is slidably connected to the side of the fixing frame.

[0013] Furthermore, the two ends of the limit spring are fixedly mounted to the inner side wall of the fixing frame and the side surface of the limit rod respectively, and the telescopic rod of the hydraulic telescopic rod passes through the side wall of the supporting frame and is slidably connected to the supporting frame.

[0014] Furthermore, the control valve vertically passes through the plug hole and is fixed to the support frame by means of a buckle.

[0015] Compared with the prior art, the present invention provides a plastic injection mold that is easy to clean bubbles, and has the following beneficial effects:

[0016] 1. The plastic injection mold that is easy to clean bubbles is constructed by embedding the mold sleeve into the groove formed by the two fixing frames, pulling the control rod to drive the limit rod to squeeze the limit spring to shrink, rotating the control rod to drive the movable rod to rotate so that the limit rod limits the mold sleeve, and the restoring force of the limit spring squeezes the fixing frame and the limit rod, thereby pushing the limit rod to fix the bottom of the mold sleeve, and connecting the control valve to the injection pipe through the plug hole to complete the installation of the mold sleeve.

[0017] 2. The plastic injection mold that is easy to clean bubbles is constructed by connecting a control valve and an injection plastic pipe, and then starting the hydraulic telescopic rod to extend and push the template into the interior of the mold sleeve. The drive motor is started to rotate and the interior of the mold sleeve is injected with material. The rotation of the drive motor drives the rotation of the threaded rod. The connecting plate is restricted by the movable plate and the cleaning rod and cannot rotate, so that the connecting plate moves longitudinally on the outside of the threaded rod, thereby driving the movable plate to push the cleaning rod to continuously pump the injected material back and forth. At the same time, the template squeezes the injected material, so that the internal air flows out through the notch on the surface of the cleaning rod, thereby solving the problem that bubbles are easily generated in the plastic injection mold during the injection molding process. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a three-dimensional diagram of the utility model;

[0019] Figure 2 This is a three-dimensional diagram of the mold sleeve, drive motor, and movable plate of the utility model;

[0020] Figure 3 This is a three-dimensional diagram of the base, support frame and fixing frame of the utility model.

[0021] In the figure: 1. Base; 2. Extrusion assembly; 21. Hydraulic telescopic rod; 22. Template; 221. Sealing pad; 23. Mold sleeve; 24. Drive motor; 25. Threaded rod; 26. Connecting plate; 27. Moving plate; 28. Cleaning rod; 29. ​​Injection pipe; 291. Control valve; 3. Injection molding assembly; 31. Support frame; 32. Movable rod; 33. Control rod; 34. Limit spring; 35. Limit rod; 36. Plug hole; 37. Fixed frame. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0023] See also Figures 1 to 3 In this embodiment, a plastic injection mold that is convenient for cleaning bubbles includes a base 1, an extrusion component 2 arranged on the top of the base 1, and an injection component 3 arranged on the top of the base 1.

[0024] In this embodiment, the extrusion assembly 2 includes a plurality of hydraulic telescopic rods 21 fixedly mounted on the side wall of the base 1, a template 22 fixedly mounted on the side of the hydraulic telescopic rod 21, a mold sleeve 23 movably connected to the top of the base 1, a drive motor 24 fixedly mounted on the top of the mold sleeve 23, a threaded rod 25 fixedly mounted on the side of the drive motor 24, a connecting plate 26 rotatably connected to the outside of the threaded rod 25, a movable plate 27 fixedly mounted on the side of the connecting plate 26, and a plurality of cleaning rods 28 fixedly mounted on the side of the movable plate 27.

[0025] In this embodiment, the base 1 is a U-shaped structure, the side of the hydraulic telescopic rod 21 is fixedly installed to the inner wall of the base 1, and a sealing pad 221 is provided on the outer side of the template 22, and the sealing pad 221 is slidably connected to the inner wall of the mold sleeve 23.

[0026] In this embodiment, the mold sleeve 23 is a ring-shaped structure, and a number of through holes are opened on both side walls of the mold sleeve 23. The cleaning rod 28 passes through the through holes horizontally and is slidably connected to the side walls of the mold sleeve 23. The surface of the cleaning rod 28 is provided with a number of small grooves for releasing gas.

[0027] It should be noted that the notches on the surface of the cleaning rod 28 are relatively slender, so that air can be released smoothly along the notches while the injection material will not block the notches.

[0028] In this embodiment, an injection tube 29 is fixedly installed on the top of the mold sleeve 23, and a threaded control valve 291 is provided on the top of the injection tube 29. The drive motor 24 is a double-headed motor and both ends are fixedly installed with the threaded rod 25.

[0029] It should be noted that the power supply of the driving motor 24 is set to be periodic, so that the rotation of the driving motor 24 is periodic forward and reverse rotation.

[0030] In this embodiment, the injection molding component 3 includes a support frame 31 fixedly mounted on the top of the base 1, a movable rod 32 movably connected to the bottom of the support frame 31, a control rod 33 fixedly mounted on the side of the movable rod 32, a limit spring 34 movably connected to the outside of the movable rod 32, a limit rod 35 fixedly mounted on the side of the movable rod 32, and a plug hole 36 opened on the top of the support frame 31.

[0031] In this embodiment, a fixing frame 37 is provided at the bottom of the support frame 31, the movable rod 32 passes through the side wall of the fixing frame 37 horizontally and is slidably connected to the fixing frame 37, and the side bottom of the mold sleeve 23 is slidably connected to the side of the fixing frame 37.

[0032] In this embodiment, the two ends of the limit spring 34 are fixedly mounted to the inner wall of the fixing frame 37 and the side of the limit rod 35 respectively, and the telescopic rod of the hydraulic telescopic rod 21 passes through the side wall of the support frame 31 and is slidably connected to the support frame 31.

[0033] It should be noted that the other end of the fixing frame 37 is provided with a limiting block for limiting the mold sleeve 23 , thereby cooperating with the limiting rod 35 to limit the mold sleeve 23 .

[0034] In this embodiment, the control valve 291 vertically passes through the insertion hole 36 and is fixed to the support frame 31 by snap fastening.

[0035] The working principle of the above embodiment is:

[0036] By embedding the mold sleeve 23 into the groove formed by the two fixing frames 37, pulling the control rod 33 drives the limit rod 35 to squeeze the limit spring 34 to shrink, rotating the control rod 33 drives the movable rod 32 to rotate so that the limit rod 35 limits the mold sleeve 23, and the restoring force of the limit spring 34 squeezes the fixing frame 37 and the limit rod 35, thereby pushing the limit rod 35 to fix the bottom of the mold sleeve 23, and connecting the control valve 291 to the injection pipe 29 through the plug hole 36, thereby completing the installation of the mold sleeve 23.

[0037] In addition, by connecting the control valve 291 and the plastic injection pipe, and then starting the hydraulic telescopic rod 21 to extend and push the template 22 into the interior of the mold sleeve 23, the drive motor 24 is started to rotate while injecting material into the interior of the mold sleeve 23. The rotation of the drive motor 24 drives the rotation of the threaded rod 25. The connecting plate 26 is restricted by the movable plate 27 and the cleaning rod 28 and cannot rotate, so that the connecting plate 26 moves longitudinally on the outside of the threaded rod 25, thereby driving the movable plate 27 to push the cleaning rod 28 to continuously pump the injected material back and forth. At the same time, the template 22 squeezes the injection material, so that the internal air flows out through the notch on the surface of the cleaning rod 28, thereby solving the problem of bubbles that are easily generated in the plastic injection mold during the injection molding process.

[0038] The electrical components mentioned in this article are all electrically connected to the main controller and the power supply. The main controller can be a conventional known device that controls a computer, etc., and the existing public power connection technology is not described in detail in this article.

[0039] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply the existence of any such actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article, or device comprising a series of elements includes not only those elements, but also other elements not explicitly listed, or elements inherent to such process, method, article, or device. In the absence of further limitations, an element defined by the phrase "comprising a ..." does not exclude the presence of other identical elements in the process, method, article, or device comprising the element.

[0040] Although the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention.

Claims

1. A plastic injection mold that is easy to clean bubbles, characterized by: It comprises a base (1), an extrusion assembly (2) arranged on the top of the base (1), and an injection molding assembly (3) arranged on the top of the base (1); The extrusion assembly (2) comprises a plurality of hydraulic telescopic rods (21) fixedly mounted on the side wall of the base (1), a template (22) fixedly mounted on the side of the hydraulic telescopic rod (21), a die sleeve (23) movably connected to the top of the base (1), a driving motor (24) fixedly mounted on the top of the die sleeve (23), a threaded rod (25) fixedly mounted on the side of the driving motor (24), a connecting plate (26) rotatably connected to the outside of the threaded rod (25), a movable plate (27) fixedly mounted on the side of the connecting plate (26), and a plurality of cleaning rods (28) fixedly mounted on the side of the movable plate (27).

2. A plastic injection mold that is easy to clean bubbles according to claim 1, characterized in that: The injection molding assembly (3) comprises a support frame (31) fixedly mounted on the top of the base (1), a movable rod (32) movably connected to the bottom of the support frame (31), a control rod (33) fixedly mounted on the side of the movable rod (32), a limit spring (34) movably connected to the outside of the movable rod (32), a limit rod (35) fixedly mounted on the side of the movable rod (32), and a plug hole (36) provided on the top of the support frame (31).

3. The plastic injection mold that is easy to clean bubbles according to claim 1, characterized in that: The base (1) is a U-shaped structure, the side of the hydraulic telescopic rod (21) and the inner wall of the base (1) are fixedly installed, the outer side of the template (22) is provided with a sealing pad (221), and the sealing pad (221) and the inner wall of the mold sleeve (23) are slidably connected.

4. The plastic injection mold for facilitating bubble cleaning according to claim 1, characterized in that: The mold sleeve (23) is a circular structure, and the two side walls of the mold sleeve (23) are provided with a plurality of through holes. The cleaning rod (28) passes through the through holes horizontally and is slidably connected to the side walls of the mold sleeve (23). The surface of the cleaning rod (28) is provided with a plurality of small notches for releasing gas.

5. The plastic injection mold that is easy to clean bubbles according to claim 1, characterized in that: A material injection pipe (29) is fixedly installed on the top of the mold sleeve (23), and a control valve (291) connected with a thread is provided on the top of the material injection pipe (29). The driving motor (24) is a double-headed motor and both ends are fixedly installed with the threaded rod (25).

6. The plastic injection mold that is easy to clean bubbles according to claim 2, characterized in that: A fixing frame (37) is provided at the bottom of the support frame (31), the movable rod (32) passes through the side wall of the fixing frame (37) transversely and is slidably connected to the fixing frame (37), and the side bottom of the mold sleeve (23) is slidably connected to the side of the fixing frame (37).

7. The plastic injection mold that is easy to clean bubbles according to claim 2, characterized in that: The two ends of the limit spring (34) are fixedly mounted on the inner side wall of the fixing frame (37) and the side of the limit rod (35), respectively. The telescopic rod of the hydraulic telescopic rod (21) passes through the side wall of the supporting frame (31) and is slidably connected to the supporting frame (31).

8. The plastic injection mold that is easy to clean bubbles according to claim 5, characterized in that: The control valve (291) vertically penetrates the plug hole (36) and is fixedly mounted on the support frame (31) by means of a buckle.

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