Improved injection molding encapsulation process

Abstract

The invention relates to the technical field of injection molding and rubber coating processes, and discloses an improved injection molding and rubber coating process which comprises the following steps: step 1, firstly, manufacturing an insert mold by using PEEK according to produced audio-visual entertainment equipment and the required injection molding and rubber coating shape and size; secondly, the first metal product and the second metal product are sequentially placed in an insert, then the manufactured insert is installed on a moving mechanism, then a power mechanism is started, and the moving mechanism is pushed leftwards along a supporting mechanism; and thirdly, when the moving mechanism is tightly attached to the extrusion mold plate in the supporting mechanism, an injection molding material prepared in advance is accurately injected into the rubber coating layer on the second metal product through the extrusion mold plate. The PEEK plastic is adopted as the insert to replace steel, the insert can work for a long time at the high temperature of 250-300 DEG C, the wear-resistant and self-lubricating characteristics of PEEK are utilized, and when the insert is used in the mold manufacturing process of metal rubber-coated products, metal products are not prone to being damaged by insertion, dragging and pressing deformation, and the problem that the appearance of the products is poor is solved.

Description

Technical Field

[0001] The invention relates to the technical field of injection molding and encapsulation technology, in particular to an improved injection molding and encapsulation technology. Background Art

[0002] In the manufacturing field of audio-visual entertainment equipment shells, injection molding and rubber coating technology are widely used. Injection molding is a processing method used in mass production of certain complex-shaped parts. Specifically, it refers to injecting the heated and melted material into the mold cavity under high pressure, and after cooling and solidification, a rubber-coated molded product is obtained.

[0003] In the current injection molding process, injection molded products often show partial whitening under high temperature conditions, which affects the appearance and quality of the products. During the secondary encapsulation and injection molding of metal products, the metal products are easily scratched, dragged and deformed. Summary of the invention

[0004] In view of the deficiencies in the prior art, the present invention provides an improved injection molding and overmolding process, which solves the problem that metal products are easily damaged, dragged and deformed by compression due to secondary overmolding of metal products.

[0005] To achieve the above objectives, the present invention is implemented by the following technical solutions: an improved injection molding encapsulation process, comprising the following steps: Step 1: First, according to the shape and size of the injection molding required for the audio-visual entertainment equipment to be produced, use PEEK to make the insert mold; Step 2, placing the first metal product and the second metal product in the insert in sequence, then installing the manufactured insert on the moving mechanism, and then starting the power mechanism to push the moving mechanism to the left along the supporting mechanism; Step 3, when the moving mechanism is in close contact with the extrusion template in the supporting mechanism, the pre-prepared injection molding material is accurately injected into the rubber coating layer on the second metal product through the extrusion template to perform the injection molding and rubber coating operation; Step 4: After the injection molding is completed, demoulding is performed, the power mechanism contracts, and the moving mechanism moves to the right along the supporting mechanism. As the moving mechanism moves, the power mechanism ejects the encapsulated product from the insert.

[0006] Preferably, the moving mechanism comprises a moving template, a placement template is fixedly connected to the left center position of the moving template, a placement groove is opened at the left center position of the placement template, and the placement groove is used to place the insert for rubber encapsulation.

[0007] Preferably, the support mechanism comprises a base, a rear seat is fixedly connected to the right side of the top of the base, four sliding rods are fixedly connected to the left side of the rear seat, and a fixed template is fixedly connected between the four sliding rods.

[0008] Preferably, the power mechanism includes a support plate, a hydraulic cylinder is fixedly connected to the center position of the right side of the support plate, and two release rods are fixedly connected to the left side of the support plate, and the two release rods are used to separate the rubber-encapsulated product from the insert.

[0009] Preferably, the insert is located in a placement groove, and the first metal product and the second metal product are placed in the insert in sequence.

[0010] Preferably, the extrusion template is located at the center of the right side of the fixed template, and the extrusion template is used to accurately inject the injection molding material into the rubber coating.

[0011] Preferably, the four slide bars sequentially penetrate the support plate and the movable template and extend to the left side of the movable template, the four slide bars are all fixedly connected to the support plate, and the four slide bars are all slidably connected to the movable template.

[0012] Preferably, the output end of the hydraulic cylinder passes through and extends to the left side of the support plate, the output end of the hydraulic cylinder is slidably connected to the support plate, and the output end of the hydraulic cylinder is fixedly connected to the movable template.

[0013] Preferably, the two disengagement rods successively penetrate the movable template, the placement template and the insert and contact the right side surface of the first metal product.

[0014] Working principle: First, according to the shape and size of the injection molding of the audio-visual entertainment device shell to be produced, the insert mold is made of PEEK material with excellent performance, and the prepared insert is installed in the placement groove at the center position of the left side of the placement template of the mobile mechanism. Then, during the injection molding operation, the first metal product and the second metal product are placed in the insert in turn to ensure their accurate position; At this time, the hydraulic cylinder of the power mechanism starts, and its output end pushes the moving template, so that the moving mechanism moves smoothly to the left along the four slide bars of the supporting mechanism. When the moving template of the moving mechanism is in close contact with the extrusion template in the supporting mechanism, the injection molding process begins, and the pre-prepared injection molding material is evenly injected into the rubber coating layer on the second metal product through the hole on the extrusion template located at the center of the right side of the fixed template, completing the injection molding and rubber coating operation; When the injection molding is completed, the demoulding stage begins. The output end of the hydraulic cylinder contracts, driving the moving mechanism to move to the right along the sliding rod of the supporting mechanism. As the moving mechanism moves, the two disengagement rods of the power mechanism successively pass through the moving template, the placement template and the insert, and contact with the right side surface of the first metal product, and eject the encapsulated product from the insert to achieve product demoulding.

[0015] The present invention provides an improved injection molding and encapsulation process. It has the following beneficial effects: 1. The present invention adopts PEEK plastic as inserts instead of steel, which can work for a long time at a high temperature of 250-300°C. By utilizing the wear resistance and self-lubricating properties of PEEK, it is used in the mold manufacturing process of metal-coated products, which is not easy to damage, drag and deform the metal products, thereby solving the problem of poor product appearance.

[0016] 2. The present invention moves the moving mechanism by contracting the power mechanism, so that the two disengagement rods are in contact with the first metal product to achieve demoulding, thereby improving demoulding efficiency, reducing production errors and low efficiency caused by human factors, reducing the risk of product damage, and further ensuring product quality and integrity. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 The present invention is a process flow chart of an improved injection molding and encapsulation process; Figure 2 A three-dimensional diagram of an improved injection molding and encapsulation process of the present invention; Figure 3 A schematic top view of an improved injection molding and encapsulation process of the present invention; Figure 4 It is a schematic diagram of a power mechanism of an improved injection molding and encapsulation process of the present invention; Figure 5 It is a schematic diagram of a supporting mechanism of an improved injection molding and encapsulation process of the present invention; Figure 6 This is a schematic diagram of insert installation in an improved injection molding and encapsulation process of the present invention; Figure 7 The figure is a schematic cross-sectional view of an insert of an improved injection molding and encapsulation process of the present invention.

[0018] Among them, 1. base; 2. back seat; 3. slide rod; 4. support plate; 5. movable template; 6. extrusion template; 7. fixed template; 8. placement template; 9. release rod; 10. hydraulic cylinder; 11. placement groove; 12. insert; 13. first metal product; 14. second metal product; 15. rubber coating. DETAILED DESCRIPTION

[0019] The technical solution of the present invention will be described clearly and completely below in conjunction with the accompanying drawings of the present invention. Obviously, the described embodiments 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 creative work are within the scope of protection of the present invention.

[0020] Example: Please refer to the attached Figure 1 -Attached Figure 7The embodiment of the present invention provides an improved injection molding encapsulation process, comprising the following steps: Step 1: First, according to the shape and size of the injection molding of the audio-visual entertainment equipment to be produced, use PEEK to make the insert 12 mold; Step 2: Place the first metal product 13 and the second metal product 14 in the insert 12 in sequence, then install the manufactured insert 12 on the moving mechanism, and then start the power mechanism to push the moving mechanism to the left along the supporting mechanism; Step 3, when the moving mechanism is in close contact with the extrusion template 6 in the supporting mechanism, the pre-prepared injection molding material is accurately injected into the rubber coating layer 15 on the second metal product 14 through the extrusion template 6 to perform the injection molding and rubber coating operation; Step 4, after the injection molding is completed, demoulding is performed, the power mechanism contracts, and the moving mechanism moves to the right along the supporting mechanism. As the moving mechanism moves, the power mechanism ejects the encapsulated product from the insert 12.

[0021] The selection of PEEK material can withstand high temperature and complex injection molding environment, ensuring that the mold will not deform or wear out during long-term use, thereby effectively ensuring the accuracy and stability of injection molding; At the same time, the moving template 5 and the placement template 8 of the moving mechanism work together to provide solid support and precise movement guidance for the insert 12 and the metal product therein, ensuring that it can reach the designated position accurately; The injection molding material slowly enters the rubber coating layer 15 through the extrusion template 6, so that the injection molding material fully fills every corner of the rubber coating layer 15, avoiding bubbles and material shortage defects, thereby ensuring the quality and integrity of the rubber coating layer 15; The release rod 9 applies uniform and moderate force to eject the encapsulated product from the insert 12 safely and smoothly, thus achieving efficient and lossless demoulding.

[0022] The slide bar 3 plays a role in stabilizing and guiding the moving direction of the movable template 5, ensuring the accuracy and stability of the movement. The insert 12 provides effective protection and positioning for the metal product, ensuring the accuracy and quality of the injection molding. The injection material is injected from the holes on the extrusion template 6 into the rubber layer 15.

[0023] The slide bar 3 plays a role in stabilizing and guiding the moving direction of the movable template 5. The four slide bars 3 are evenly distributed and, through the sliding connection with the movable template 5, limit the other degrees of freedom of the movable template 5 except the axial direction, ensuring that it can only move along the axial direction of the slide bar 3, thereby greatly improving the accuracy and stability of the movement, so that the moving mechanism can maintain linear motion during the advancement and retreat process, avoiding the injection molding error caused by offset or shaking; The insert 12 provides effective protection and precise positioning for the metal product. The shape and size of the insert 12 perfectly match the metal product, and can prevent the metal product from being impacted and squeezed by external forces during the injection molding process, thereby avoiding deformation and damage to the metal product.

[0024] The moving mechanism comprises a moving template 5, a placement template 8 is fixedly connected at the left center of the moving template 5, a placement groove 11 is opened at the left center of the placement template 8, and the placement groove 11 is used to place the insert 12 for rubber encapsulation.

[0025] The placement template 8 is fixedly connected at the left center position of the movable template 5 in the movable mechanism, and the placement groove 11 opened at the left center position is specifically used for placing the insert 12 for rubber encapsulation, making the installation and removal of the insert 12 convenient and efficient, and also providing stable support and fixation for the insert 12, ensuring that the insert 12 will not be displaced or loosened during the injection molding process.

[0026] The supporting mechanism comprises a base 1 , a rear seat 2 is fixedly connected to the right side of the top of the base 1 , four slide bars 3 are fixedly connected to the left side of the rear seat 2 , and a fixed template 7 is fixedly connected between the four slide bars 3 .

[0027] The base 1 provides a stable foundation to ensure that the entire device will not shake or tilt during operation. The rear seat 2 fixed on the top right side of the base 1 provides solid support for the slide rod 3 and the fixed template 7. The four slide rods 3 fixed on the left side of the rear seat 2 not only play a guiding and supporting role, but also enhance the structural strength and stability of the entire supporting mechanism through the fixed connection with the fixed template 7.

[0028] The power mechanism includes a support plate 4 , a hydraulic cylinder 10 is fixedly connected to the center position of the right side of the support plate 4 , and two release rods 9 are fixedly connected to the left side of the support plate 4 . The two release rods 9 are used to separate the rubber-encapsulated product from the insert 12 .

[0029] The support plate 4 provides an installation basis for the hydraulic cylinder 10 and the disengagement rod 9. The advancement and retreat of the moving mechanism are realized through the telescopic movement of the output end of the hydraulic cylinder 10, and the control is precise. At the same time, the two disengagement rods 9 play a key role in the demoulding process. They all pass through the moving template 5, the placement template 8 and the insert 12 in sequence, and contact with the right side surface of the first metal product 13. Through coordinated movement, the encapsulated product is safely ejected from the insert 12.

[0030] The insert 12 is located in the placement groove 11 , and the first metal product 13 and the second metal product 14 are placed in the insert 12 in sequence.

[0031] It ensures the stability and safety of the metal product during the injection molding process.

[0032] The extrusion template 6 is located at the center of the right side of the fixed template 7 , and the extrusion template 6 is used to accurately inject the injection material into the rubber coating 15 .

[0033] The holes and channels on the extrusion template 6 can accurately control the flow direction and speed of the injection material according to the characteristics of the injection material and the shape requirements of the rubber coating layer 15, thereby ensuring the quality and effect of the injection molding rubber coating.

[0034] The four slide bars 3 sequentially penetrate the support plate 4 and the movable template 5 and extend to the left side of the movable template 5 . The four slide bars 3 are all fixedly connected to the support plate 4 , and the four slide bars 3 are all slidably connected to the movable template 5 .

[0035] The output end of the hydraulic cylinder 10 penetrates and extends to the left side of the support plate 4 , the output end of the hydraulic cylinder 10 is slidably connected to the support plate 4 , and the output end of the hydraulic cylinder 10 is fixedly connected to the movable template 5 .

[0036] The hydraulic cylinder 10 provides a strong and stable power to the moving mechanism through the telescopic movement of the output end. The connection between the output end and the moving mechanism can effectively transmit the power while ensuring the stability and accuracy during the movement.

[0037] The two disengagement rods 9 pass through the movable template 5 , the placement template 8 and the insert 12 in sequence and contact the right side surface of the first metal product 13 .

[0038] The through-type design of the two disengagement rods 9 enables the disengagement rods 9 to act directly on the first metal product 13 and apply uniform force as the moving mechanism moves, ensuring that the product will not be damaged during the demoulding process, thereby improving the demoulding success rate and product quality.

[0039] Although 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 the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An improved injection molding encapsulation process, characterized in that: The following steps are involved: Step 1: First, according to the shape and size of the injection molding of the audio-visual entertainment equipment to be produced, use PEEK to make an insert (12) mold; Step 2, placing the first metal product (13) and the second metal product (14) in the insert (12) in sequence, then installing the manufactured insert (12) on the moving mechanism, and then starting the power mechanism to push the moving mechanism to the left along the supporting mechanism; Step three, when the moving mechanism is in close contact with the extrusion template (6) in the supporting mechanism, the pre-prepared injection molding material is accurately injected into the rubber coating layer (15) on the second metal product (14) through the extrusion template (6) to perform the injection molding and rubber coating operation; Step 4: After the injection molding is completed, demoulding is performed, the power mechanism contracts, and the moving mechanism moves to the right along the supporting mechanism. As the moving mechanism moves, the power mechanism ejects the encapsulated product from the insert (12).

2. The improved injection molding process according to claim 1, characterized in that: The moving mechanism comprises a moving template (5), a placement template (8) is fixedly connected at the left center position of the moving template (5), a placement groove (11) is provided at the left center position of the placement template (8), and the placement groove (11) is used to place an insert (12) for encapsulation.

3. The improved injection molding and encapsulation process according to claim 1, characterized in that: The support mechanism comprises a base (1), a rear seat (2) is fixedly connected to the right side of the top of the base (1), four sliding rods (3) are fixedly connected to the left side of the rear seat (2), and a fixed template (7) is fixedly connected between the four sliding rods (3).

4. The improved injection molding process according to claim 1, characterized in that: The power mechanism comprises a support plate (4), a hydraulic cylinder (10) is fixedly connected at the center position of the right side of the support plate (4), and two release rods (9) are fixedly connected to the left side of the support plate (4), and the two release rods (9) are used to release the rubber-encapsulated product from the insert (12).

5. The improved injection molding and encapsulation process according to claim 1, characterized in that: The insert (12) is located in the placement groove (11), and the first metal product (13) and the second metal product (14) are placed in the insert (12) in sequence.

6. The improved injection molding process according to claim 1, characterized in that: The extrusion template (6) is located at the center of the right side of the fixed template (7), and the extrusion template (6) is used to accurately inject the injection molding material into the rubber coating layer (15).

7. The improved injection molding and encapsulation process according to claim 3, characterized in that: The four slide bars (3) sequentially penetrate the support plate (4) and the movable template (5) and extend to the left side of the movable template (5); the four slide bars (3) are all fixedly connected to the support plate (4); and the four slide bars (3) are all slidably connected to the movable template (5).

8. The improved injection molding and encapsulation process according to claim 4, characterized in that: The output end of the hydraulic cylinder (10) passes through and extends to the left side of the support plate (4); the output end of the hydraulic cylinder (10) is slidably connected to the support plate (4); and the output end of the hydraulic cylinder (10) is fixedly connected to the movable template (5).

9. The improved injection molding and encapsulation process according to claim 4, characterized in that: The two disengagement rods (9) successively penetrate the movable template (5), the placement template (8) and the insert (12) and contact the right side surface of the first metal product (13).

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