An insert-encapsulated suspended feeding mold and a working method thereof

Abstract

The purpose of the present invention is to provide an insert-coated suspended feeding mold and a working method thereof, which is characterized in that: it includes a capping mold, a molding mold, a core positioning slider, a molding mold core and a mold core lifting driver, the capping mold is provided with two injection holes, four mold clamping pillars and four positioning pillars, the molding mold is provided with four mold clamping holes, four mold positioning holes, two molding mold core fastening pins, a slider limit plate and a glue injection parting line, the mold core positioning slider is provided with a positioning pin locking pin and two side pins, the positioning pin locking pin is provided with three positioning pins, the molding mold core is provided with a product clamping block, the product clamping block is provided with three product positioning holes and two side pin plug holes, the whole set of molds uses the non-functional surface of the edge of the metal insert to increase the material as the clamping position, so that the rubber-coated surface of the metal insert is suspended in the mold cavity, so as to achieve the rubber-coated effect of uniform rubber-coating on the product surface and no ejector pin mark, improve the rubber-coating quality and yield rate of the metal insert, reduce the processing rework rate, and thus save costs.

Description

Technical Field

[0001] The invention relates to the field of mechanical processing, and in particular to an insert-encapsulated suspended feeding die and a working method thereof. Background Art

[0002] Liquid silicone is referred to as LSR in English. It is a product favored by consumers and manufacturers. Liquid silicone is made of silicone products. It has good elasticity, waterproof and moisture-proof properties, and is resistant to corrosion by various chemical substances such as acids and alkalis. The overmolding of most seals can achieve one-time molding, no waste, and automation during production and processing. It adopts injection molding, large-scale, rapid vulcanization, and repetitive mechanical production. Its products show good thermal stability, cold resistance, and excellent electrical insulation properties. It does not produce toxic substances when burned. Therefore, it is widely used in health products, automobiles, baby products, and medical products. It has become an irreplaceable material in the production and design of medical supplies, diving supplies, kitchen utensils and seals; it is also a common processing method in LSR and metal parts encapsulation operations, and the existing operation modes and methods for metal parts encapsulation use ejector positioning or clamping positioning. The positioning position cannot wrap silicone, and the full encapsulation of the functional surface of the metal part cannot be achieved, and the effect of uniform encapsulation cannot be achieved. In summary, it is necessary to develop and design a set of more comprehensive encapsulation feeding molds to solve the problem that metal parts cannot be fully and evenly encapsulated, and to improve the quality and yield of metal parts encapsulation. Summary of the invention

[0003] The purpose of the present invention is to provide a kind of rubber coating operation suitable for LSR and metal inserts, which uses the non-functional surface of the edge of the metal insert to increase the material as the clamping position, adopts the cylinder and the ejector to clamp and position, so that the rubber coating surface of the metal insert is suspended in the mold cavity, and the glue is fed through the parting line position, thereby realizing the uniform rubber coating operation on the upper and lower sides of the product, and also realizing the rubber coating effect of uniform rubber coating on the surface of the product and no ejector mark, which is simpler and more convenient to operate, improves the quality and yield rate of the metal insert rubber coating, reduces the processing rework rate, and thus saves the cost of the insert rubber coating suspended feeding mold and its working method.

[0004] The technical solution of the present invention is: an insert-encapsulated rubber suspended feeding mold, characterized in that it includes a capping mold, a molding mold, a mold core positioning slider, a molding mold core and a mold core lifting driver, the capping mold is also provided with two glue injection holes, four mold clamping pillars and four positioning pillars, the two glue injection holes are located at the top of the capping mold, the two glue injection holes are fixedly connected to the capping mold, the four mold clamping pillars are respectively located at the four corners of the lower part of the capping mold, the four mold clamping pillars are fixedly connected to the capping mold, the four positioning pillars are located at the lower part of the capping mold, and the four positioning pillars are located on the inner side of the four mold clamping pillars, the four positioning pillars are fixedly connected to the capping mold, the molding mold is located at the lower part of the capping mold The molding die is detachably connected to the capping die. The molding die is also provided with four mold clamping holes, four mold positioning holes, two molding die core fastening pins, a slider limit plate and a glue injection parting line. The four mold clamping holes are located at the four corners of the upper part of the molding die. The four mold clamping holes are fixedly connected to the molding die. The position distribution of the four mold clamping holes on the molding die is the same as the position distribution of the four clamping pillars on the capping die. The four mold positioning holes are located at the lower part of the molding die, and the four mold positioning holes are located on the inner sides of the four mold clamping holes. The four mold positioning holes are fixedly connected to the molding die. The position distribution of the four mold positioning holes on the molding die is the same as the position distribution of the four positioning pillars on the capping die. The position distribution on the mold is the same, the two molding mold core fastening pins are horizontally and parallelly located on the upper part of the molding mold, the two molding mold core fastening pins are pluggable and connected to the molding mold, any of the molding mold core fastening pins is also provided with a limiting slide hole and two mold core fastening pin limiting blocks, the limiting slide hole is located in the middle of the molding mold core fastening pin, the limiting slide hole is fixedly connected to the molding mold core fastening pin, the two mold core fastening pin limiting blocks are horizontally and parallelly located on both sides of the molding mold core fastening pin, the two mold core fastening pin limiting blocks are fixedly connected to the molding mold, the mold core positioning slider and the slider limiting plate are all located between the two molding mold core fastening pins, and the mold core positioning slider is located on the inner side of the molding mold, the mold core positioning slider It is pluggable connected to the molding mold, the slider limit plate is located at the upper part of the mold core positioning slider, the slider limit plate is fixedly connected to the molding mold, the mold core positioning slider is also provided with a positioning pin lock pin and two side pins, the positioning pin lock pin is located on one side of the mold core positioning slider, the positioning pin lock pin passes through the mold core positioning slider for pluggable connection, and the positioning pin lock pin is also provided with three positioning pins, the three positioning pins are spaced at the same distance and are horizontally parallel to one end of the positioning pin lock pin located close to one side of the molding mold core, the three positioning pins are all fixedly connected to the positioning pin lock pin, the two side pins are located on both sides of the positioning pin lock pin, the two side pins both pass through the mold core positioning slider for pluggable connection, and the molding mold core is located in the middle of the inner side of the molding mold,The molding core is movably connected to the molding mold, and a product clamping block is further provided on the molding core. The product clamping block is located on one side of the molding core near the position of the mold core positioning slider, and the product clamping block is fixedly connected to the molding core. Three product positioning holes and two side needle plug holes are further provided on the product clamping block. The three product positioning holes are horizontally parallel and located at the middle of one side of the product clamping block at the same distance between them. The three product positioning holes are all fixedly connected to the product clamping block, and the two side needle plug holes are horizontally parallel and located on both sides of the three product positioning holes respectively. The two side needle plug holes are both fixedly connected to the product clamping block. The position distribution of the two side needle plug holes on the product clamping block is the same as the position distribution of the two side needles on the mold core positioning slider. The glue injection parting line is located at the upper part of the molding mold near the outer side of the molding core, and the glue injection parting line is fixedly connected to the molding mold. The mold core lifting driver is located at the lower part of the molding mold, and the mold core lifting driver is fixedly connected to the molding mold, and one end of the mold core lifting driver passes through the molding mold and is connected to the molding mold core. ,

[0005] Furthermore, the two molding mold core fastening pins are both embedded mold key pins with locking top columns.

[0006] Furthermore, the mold core positioning slider is a slideway type top block.

[0007] Furthermore, the molding core is a core with a Teflon coating.

[0008] Furthermore, the mold core lifting driver is an electrically controlled hydraulic lifting driver.

[0009] Working method:

[0010] The whole set of molds is installed on the CNC equipment, and the cylinder control switch on the CNC equipment is used to complete the injection vulcanization and encapsulation molding of the metal inserts and the extraction of the finished parts. The specific operation steps are as follows:

[0011] Step 1: Open the mold core: Press the "open mold core" button on the cylinder control switch. At this time, the two mold core fastening pins on the upper part of the molding mold open outward, and confirm that the two mold core fastening pins are opened in place, so that the key pin of the molding core is opened, and the molding core is in a loose state, which is convenient for the mold core positioning slider and the demoulding of the molding core;

[0012] Step 2: Open the side needle: Press the "side needle open" button on the cylinder control switch. At this time, the two side needles on one side of the mold core positioning slider open outward, and confirm that the two side needles are fully opened, so that the mold clamping state between the mold core positioning slider and the molding mold core is released, which is convenient for the subsequent ejection of the molding mold core;

[0013] Step 3: Open the core positioning slider: Press the "slider open" button on the cylinder control switch. At this time, the core positioning slider will separate from the forming core, and confirm that the core positioning slider is separated in place to realize the demoulding of the core positioning slider and the forming core;

[0014] Step 4: Eject the molding core: Press the "eject" button on the cylinder control switch. At this time, the mold core lifting driver at the bottom of the molding mold will push the molding core upward and confirm that the molding core is ejected in place, so that the molding core is ejected from the middle of the molding mold;

[0015] Step 5. Open the positioning pin: Press the "positioning pin in" button on the cylinder control switch. At this time, the positioning pin lock pin on one side of the mold core positioning slider is ejected toward the position of the molding mold core. As the positioning pin lock pin is ejected, the three positioning pins connected to the positioning pin lock pin will also be ejected. The three positioning pins fit with one side of the raised molding mold core, thereby forming a bearing structure connecting the positioning pin and the molding mold core, so as to facilitate the positioning and placement of the metal insert;

[0016] Step 6: Loading of metal inserts: The operator places the metal inserts to be injection molded and vulcanized on the molding core. Due to the fit between the positioning pin and the molding core, the operator can quickly and accurately find the fitting points between the non-functional surface of the metal insert and the molding core, which is convenient for accurate positioning and placement of the clamping position, and confirms that the metal inserts to be injection molded and vulcanized are in place;

[0017] Step 7: Withdraw the positioning pin: Press the "positioning pin out" button on the cylinder control switch. At this time, the positioning pin lock pin on one side of the mold core positioning slider is withdrawn. With the withdrawal of the positioning pin lock pin, the three positioning pins connected to the positioning pin lock pin will also be stored inside the mold core positioning slider, so that the metal insert that needs to be injection vulcanized fits on the molding mold core.

[0018] Step 8. Reset the mold core positioning slider: Press the "top and back" button on the cylinder control switch. At this time, the mold core lifting driver at the bottom of the molding mold will pull the molding core downward and confirm that the molding core falls back and resets, allowing the molding core to return to the middle of the molding mold. At the same time, confirm that the loaded metal inserts that need to be injection vulcanized are not deformed;

[0019] Step 9. Close the core positioning slider: Press the "slider off" button on the cylinder control switch. At this time, the core positioning slider will close the mold with the forming mold core, and confirm that the core positioning slider is in place to achieve the fitting splicing of the core positioning slider and the forming mold core;

[0020] Step 10, side needle closing: Press the "side needle closing" button on the cylinder control switch. At this time, the two side needles on one side of the mold core positioning slider are pushed into the molding mold core, and it is confirmed that the two side needles are inserted into the molding mold core, so that the mold core positioning slider and the molding mold core are aligned and positioned;

[0021] Step 11, glue injection and finished product: close the capping mold and the molding mold, inject glue into the molding mold through the two glue injection holes on the top of the capping mold, and the glue enters the metal insert surface on the molding mold core along the glue injection parting line, thereby completing the glue coating and vulcanization operation of the metal insert. Subsequently, open the capping mold and the molding mold, and confirm that the mold is in place. Next, press the "core open" button on the cylinder control switch to confirm that the two molding core fastening pins are opened in place. Next, press the "side needle open" button on the cylinder control switch to confirm that the two side needles are opened in place. Then, press the "slider open" button on the cylinder control switch to confirm that the mold core positioning slider is separated in place. Then, press the "ejection" button on the cylinder control switch to confirm that the molding core is ejected in place. Finally, take out the glue-coated and vulcanized product from the molding core, and take out the residual material head of the glue injection and vulcanization to complete the operation.

[0022] The beneficial effects of the present invention are as follows: the insert rubber-coated suspended feeding mold is suitable for the rubber-coating operation of LSR and metal inserts. The whole set of molds uses the non-functional surface of the edge of the metal insert to increase the material as the clamping position, and adopts the cylinder and the ejector for clamping and positioning, so that the rubber-coated surface of the metal insert is suspended in the mold cavity, and the glue is fed through the parting line position, thereby realizing the uniform rubber-coating operation on the upper and lower surfaces of the product, and also realizing the rubber-coating effect of uniform rubber-coating on the product surface and without ejector mark. The operation is simpler and more convenient, and the rubber-coating quality and yield rate of the metal insert are improved, and the processing rework rate is reduced, thereby saving costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is the front view of the present invention.

[0024] Figure 2 It is a schematic diagram of the capping mold and the forming mold being separated from each other according to the present invention.

[0025] Figure 3 It is a schematic diagram of the molding die structure of the present invention.

[0026] Figure 4 It is a schematic diagram of the ejection state of the molding core of the present invention.

[0027] Figure 5 It is a schematic diagram of the top view structure of the forming mold of the present invention.

[0028] Among them: 1. Capping mold 2. Glue injection hole 3. Mold support

[0029] 4. Positioning pillar 5. Forming mold 6. Mold clamping hole

[0030] 7. Mold positioning hole 8. Forming mold core fastening pin 9. Limiting slide hole

[0031] 10. Core fastening pin limit block 11. Core positioning slider 12. Slider limit plate

[0032] 13. Positioning pin lock pin 14. Positioning pin 15. Side pin

[0033] 16. Molding core 17. Product clamping block 18. Product positioning hole

[0034] 19. Side needle jack 20. Glue injection parting line 21. Mold core lifting driver DETAILED DESCRIPTION

[0035] The specific implementation of the present invention is briefly described below in conjunction with the accompanying drawings.

[0036] like Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5The illustrated insert-encapsulated suspended feeding mold is characterized in that it includes a capping mold 1, a molding mold 5, a mold core positioning slider 11, a molding mold core 16 and a mold core lifting driver 21, and the capping mold 1 is also provided with two glue injection holes 2, four mold clamping pillars 3 and four positioning pillars 4, the two glue injection holes 2 are located at the top of the capping mold 1, and the two glue injection holes 2 are fixedly connected to the capping mold 1, the four mold clamping pillars 3 are respectively located at the four corners of the lower part of the capping mold 1, the four mold clamping pillars 3 are fixedly connected to the capping mold 1, the four positioning pillars 4 are located at the lower part of the capping mold 1, and the four positioning pillars 4 are located on the inner side of the four mold clamping pillars 3, and the four positioning pillars 4 are connected to the capping mold 1 is fixedly connected, the molding die 5 is located at the lower part of the capping die 1, the molding die 5 and the capping die 1 are detachably connected, the molding die 5 is also provided with four mold clamping holes 6, four mold positioning holes 7, two molding mold core fastening pins 8, a slider limit plate 12 and a glue injection parting line 20, the four mold clamping holes 6 are located at the four corners of the upper part of the molding die 5, the four mold clamping holes 6 are fixedly connected to the molding die 5, the position distribution of the four mold clamping holes 6 on the molding die 5 is the same as the position distribution of the four clamping pillars 3 on the capping die 1, the four mold positioning holes 7 are located at the lower part of the molding die 5, and the four mold positioning holes 7 are located on the inner side of the four mold clamping holes 6, The four mold positioning holes 7 are all fixedly connected to the molding mold 5, and the position distribution of the four mold positioning holes 7 on the molding mold 5 is the same as the position distribution of the four positioning pillars 4 on the capping mold 1. The two molding mold core fastening pins 8 are horizontally and parallelly located on the upper part of the molding mold 5, and the two molding mold core fastening pins 8 are pluggable with the molding mold 5. Any of the molding mold core fastening pins 8 is also provided with a limiting slide hole 9 and two mold core fastening pin limiting blocks 10, the limiting slide hole 9 is located in the middle of the molding mold core fastening pin 8, the limiting slide hole 9 is fixedly connected to the molding mold core fastening pin 8, the two mold core fastening pin limiting blocks 10 are horizontally and parallelly located on both sides of the molding mold core fastening pin 8, and the two mold core fastening pin limiting The blocks 10 are all fixedly connected to the molding mold 5, the core positioning slider 11 and the slider limit plate 12 are all located between the two molding core fastening pins 8, and the core positioning slider 11 is located on the inner side of the molding mold 5, the core positioning slider 11 and the molding mold 5 are pluggable, the slider limit plate 12 is located on the upper part of the core positioning slider 11, the slider limit plate 12 is fixedly connected to the molding mold 5, the core positioning slider 11 is also provided with a positioning needle lock pin 13 and two side needles 15, the positioning needle lock pin 13 is located on one side of the core positioning slider 11, the positioning needle lock pin 13 passes through the core positioning slider 11 for pluggable connection, and the positioning needle lock pin 13 is also provided with three positioning needles 14,The three positioning pins 14 are spaced at the same distance and are horizontally parallel to one end of the positioning pin lock pin 13 located on one side close to the molding core 16. The three positioning pins 14 are fixedly connected to the positioning pin lock pin 13. The two side pins 15 are located on both sides of the positioning pin lock pin 13. The two side pins 15 pass through the mold core positioning slider 11 for pluggable connection. The molding core 16 is located in the middle of the inner side of the molding mold 5. The molding core 16 is movably connected to the molding mold 5. A product clamping block 17 is also provided on the molding core 16. The product clamping block 17 is located on one side of the molding core 16 close to the position of the mold core positioning slider 11. The product clamping block 17 is fixedly connected to the molding core 16. The product clamping block 17 is also provided with three product positioning holes 18 and two side pin plug holes 19. The three product positioning holes 18 are spaced at the same distance The distance is horizontally parallel and located in the middle of one side of the product clamping block 17. The three product positioning holes 18 are fixedly connected to the product clamping block 17. The two side needle plug holes 19 are horizontally parallel and located on both sides of the three product positioning holes 18. The two side needle plug holes 19 are fixedly connected to the product clamping block 17. The position distribution of the two side needle plug holes 19 on the product clamping block 17 is the same as the position distribution of the two side needles 15 on the mold core positioning slider 11. The injection parting line 20 is located at the upper part of the molding mold 5 near the outer side of the molding core 16. The injection parting line 20 is fixedly connected to the molding mold 5. The mold core lifting driver 21 is located at the lower part of the molding mold 5. The mold core lifting driver 21 is fixedly connected to the molding mold 5, and one end of the mold core lifting driver 21 passes through the molding mold 5 and is connected to the molding core 16. The two molding core fastening pins 8 are both embedded mold key pins with a locking top column. The mold core positioning slider 11 is a slideway top block. The molding core 16 is a core with a Teflon coating. The core lifting driver 21 is an electrically controlled hydraulic lifting driver.

[0037] Working method: The insert rubber-coated suspended feeding mold is suitable for the rubber-coating operation of LSR and metal inserts. The whole mainly includes a capping mold 1, a molding mold 5, a mold core positioning slider 11, a molding mold core 16 and a mold core lifting driver 21. Among them, the capping mold 1 is also provided with two injection holes 2, four mold clamping pillars 3 and four positioning pillars 4, and the molding mold 5 is also provided with four mold clamping holes 6, four mold positioning holes 7, two molding mold core fastening pins 8, a slider limit plate 12 and a glue injection parting line 20. The capping mold 1 and the molding mold 5 are used for mold clamping and demoulding and glue injection vulcanization of metal inserts. When the capping mold 1 and the molding mold 5 are clamped, the capping mold 1 is lowered. The position relationship of the mold clamping pillars 3 installed at the four corners of the upper part corresponds to the position relationship of the mold clamping holes 6 at the four corners of the molding mold 5, and they are mutually aligned, which is used for the mold clamping positioning of the capping mold 1 and the molding mold 5, and the position relationship of the positioning pillars 4 installed at the four corners of the lower part of the capping mold 1 corresponds to the position relationship of the mold positioning holes 7 at the four corners of the molding mold 5, and they can also be mutually aligned, which is used for the precise positioning of the capping mold 1 and the molding mold 5, and plays a role in correcting deviation; the whole set of molds is installed on the CNC equipment, and the cylinder control switch on the CNC equipment is used to complete the injection vulcanization and encapsulation molding of the metal insert and the extraction of the finished parts. The specific operation steps are as follows:

[0038] Step 1: Open the mold core: Press the "Mold Core Open" button on the cylinder control switch. At this time, the two molding mold core fastening pins 8 on the upper part of the molding mold 5 are opened outward. Each molding mold core fastening pin 8 adopts an embedded mold key pin with a card top column. When the two molding mold core fastening pins 8 are opened outward, the embedded mold key pin of each molding mold core fastening pin 8 will also be opened in the molding mold 5, so that the embedded mold key pin of each molding mold core fastening pin 8 is separated from the fixation with the molding mold core 16, and each molding mold core fastening pin A limiting slide hole 9 and two core fastening pin limiting blocks 10 are also provided on the pin 8. Each molding core fastening pin 8 uses the limiting slide hole 9 as a moving fulcrum, and uses the core fastening pin limiting blocks 10 on the left and right sides as the positioning of the moving trajectory, so that the horizontal movement of each molding core fastening pin 8 is more precise and standardized. The operator also confirms that the two molding core fastening pins 8 are opened in place, so that the key pin of the molding core 16 is opened, and the molding core 16 is in a loosened state, which is convenient for the demolding of the core positioning slider 11 and the molding core 16.

[0039] Step 2, side needle opening: the core positioning slider 11 adopts a slide type ejector block, and its slide structure enables the core positioning slider 11 to move horizontally along the slide, standardizing the moving trajectory of the core positioning slider 11 and the molding core 16 for mold closing and demolding, and a positioning needle locking pin 13 and two side needles 15 are also provided on the core positioning slider 11, wherein the positioning needle locking pin 13 is used to lock the position of the metal insert loaded on the molding core 16, and the two side needles 15 are used for positioning and closing the core positioning slider 11 and the molding core 16, press the "side needle open" button on the cylinder control switch, at this time, the two side needles 15 on one side of the core positioning slider 11 open outward, and confirm that the two side needles 15 are opened in place, so that the mold closing state of the core positioning slider 11 and the molding core 16 is released, which is convenient for the subsequent ejection of the molding core 16.

[0040] Step 3, open the core positioning slider: press the "slider open" button on the cylinder control switch, then the core positioning slider 11 will separate from the molding core 16, and confirm that the core positioning slider 11 is separated in place, so as to realize the demoulding of the core positioning slider 11 and the molding core 16.

[0041] Step 4: Ejection of the molding core: Press the "ejection" button on the cylinder control switch. At this time, the core lifting driver 21 at the bottom of the molding mold 5 will push the molding core 16 to rise. The core lifting driver 21 adopts an electrically controlled hydraulic lifting drive device to make the ejection process of the molding core 16 smoother and gentler, and confirm that the molding core 16 is ejected in place, so that the molding core 16 is ejected from the middle of the molding mold 5.

[0042] Step 5, positioning pin opening: press the "positioning pin in" button on the cylinder control switch. At this time, the positioning pin lock pin 13 on one side of the core positioning slider 11 is ejected toward the position of the molding core 16. Three positioning pins 14 are also provided on the positioning pin lock pin 13. These three positioning pins 14 are distributed at one end of the positioning pin lock pin 13 close to the molding core 16. As the positioning pin lock pin 13 is ejected, the three positioning pins 14 connected to the positioning pin lock pin 13 will also be ejected. These three positioning pins 14 are fitted with one side of the molding core 16 in the lifted state, thereby forming a bearing structure connecting the positioning pin 14 and the molding core 16 to facilitate the positioning and placement of the metal insert.

[0043] Step 6: Loading metal inserts: The operator places the metal inserts to be injection vulcanized on the molding core 16. The molding core 16 is also provided with a product clamping block 17 for positioning and clamping the non-functional surface of the metal insert with materials. The product clamping block 17 is also provided with three product positioning holes 18 and two side pin insertion holes 19. The position relationship of the three product positioning holes 18 on one side of the molding core 16 in the ejected state is aligned with the position relationship of the three positioning pins 14. When the three positioning pins 14 are in contact with the molding core 16, the three positioning holes 18 are aligned with the three positioning pins 14. The positioning pins 14 are inserted into the three product positioning holes 18 on one side of the product clamping block 17. Due to the fit between the positioning pins 14 and the molding core 16, the operator can quickly and accurately find the fitting points between the non-functional surface added material on the metal insert and the molding core 16, which is convenient for the precise positioning and placement of the clamping position, and confirms that the metal insert that needs to be injection vulcanized is in place. The two side pin holes 19 of the product clamping block 17 are used for the insertion of the two side pins 15 when the molding core 16 is lowered and reset, so as to realize the precise clamping and demolding of the core positioning slider 11 and the molding core 16.

[0044] Step 7. Withdraw the positioning pin: Press the "positioning pin out" button on the cylinder control switch. At this time, the positioning pin locking pin 13 on one side of the core positioning slider 11 is withdrawn. As the positioning pin locking pin 13 is withdrawn, the three positioning pins 14 connected to the positioning pin locking pin 13 will also be received inside the core positioning slider 11, so that the metal insert that needs to be injection vulcanized fits on the molding core 16.

[0045] Step 8: Reset the mold core positioning slider: Press the "top and back" button on the cylinder control switch. At this time, the mold core lifting driver 21 at the lower part of the molding mold 5 will pull the molding mold core 16 downward, and confirm that the molding mold core 16 falls back and resets, allowing the molding mold core 16 to return to the middle of the molding mold 5, and at the same time confirm that the loaded metal inserts that need to be injection vulcanized are not deformed.

[0046] Step 9. Close the core positioning slider: Press the "slider off" button on the cylinder control switch. At this time, the core positioning slider 11 will close the mold with the molding core 16, and confirm that the core positioning slider 11 is in place to achieve the fitting splicing of the core positioning slider 11 and the molding core 16.

[0047] Step 10, side needle closing: press the "side needle closing" button on the cylinder control switch. At this time, the two side needles 15 on one side of the core positioning slider 11 are pushed into the molding core 16, and it is confirmed that the two side needles 15 are inserted into the molding core 16, so that the core positioning slider 11 and the molding core 16 are aligned and positioned.

[0048] Step 11, glue injection and finished product: close the capping mold 1 and the molding mold 5, inject glue into the molding mold 5 through the two glue injection holes 2 on the top of the capping mold 1, and the glue enters the metal insert surface on the molding mold core 16 along the glue injection parting line 20, thereby completing the glue coating and vulcanization operation of the metal insert. Subsequently, open the capping mold 1 and the molding mold 5, and confirm that the mold is moved into place. Next, press the "core open" button on the cylinder control switch to confirm that the two molding mold core fastening pins 8 are opened in place, and then press the "side needle open" button on the cylinder control switch to confirm that the two The side needles 15 are opened into place, and then the "slider open" button on the cylinder control switch is pressed to confirm that the core positioning slider 11 is separated into place. Then, the "ejection" button on the cylinder control switch is pressed to confirm that the molding core 16 is ejected into place. Finally, the product after rubber coating and vulcanization is taken out from the molding core 16. The molding core 16 adopts a core with Teflon coating to avoid adhesion of the finished rubber coating product, and the residual material head of the injection vulcanization is taken out to complete the operation. After rubber coating, the excess metal material is cut off by CNC to achieve uniform rubber coating on the product surface without ejector marks.

[0049] The whole set of molds uses the non-functional surface of the edge of the metal insert to increase the material as the clamping position, and adopts the cylinder and the ejector for clamping and positioning, so that the rubber-coated surface of the metal insert is suspended in the mold cavity, and the glue is introduced through the parting line position, thereby achieving uniform rubber coating on the upper and lower surfaces of the product, and also achieving the rubber coating effect of uniform rubber coating on the product surface and no ejector mark. The operation is simpler and more convenient, which improves the quality and yield rate of the metal insert rubber coating, reduces the processing rework rate, and thus saves costs.

[0050] In the description of the present invention, it should be noted that the terms "center", "longitudinal", "lateral", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "inner", "outer", "top", "bottom", "end" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance.

[0051] The above is a detailed description of an embodiment of the present invention, but the content is only a preferred embodiment of the present invention and cannot be considered to limit the scope of implementation of the present invention. All equivalent changes and improvements made within the scope of the present invention should still fall within the scope of the patent coverage of the present invention.

Claims

1. An insert encapsulated suspended feeding mold, characterized in that: It includes a capping mold, a forming mold, a mold core positioning slider, a forming mold core and a mold core lifting driver. The capping mold is also provided with two glue injection holes, four mold clamping pillars and four positioning pillars. The two glue injection holes are located at the top of the capping mold, and the two glue injection holes are fixedly connected to the capping mold. The four mold clamping pillars are respectively located at the four corners of the lower part of the capping mold. The four mold clamping pillars are fixedly connected to the capping mold. The four positioning pillars are located at the lower part of the capping mold, and the four positioning pillars are located on the inner side of the four mold clamping pillars. The four positioning pillars are fixedly connected to the capping mold. The forming mold is located at the lower part of the capping mold. The forming mold is detachably connected to the capping mold. The forming mold is also provided with four The four mold closing holes, four mold positioning holes, two molding mold core fastening pins, a slider limit plate and a glue injection parting line, the four mold closing holes are located at the four corners of the upper part of the molding mold, the four mold closing holes are fixedly connected to the molding mold, the position distribution of the four mold closing holes on the molding mold is the same as the position distribution of the four closing pillars on the capping mold, the four mold positioning holes are located at the lower part of the molding mold, and the four mold positioning holes are located on the inner side of the four mold closing holes, the four mold positioning holes are fixedly connected to the molding mold, the position distribution of the four mold positioning holes on the molding mold is the same as the position distribution of the four positioning pillars on the capping mold, and the two molding mold core fastening pins are horizontally and parallelly located in the molding mold The upper part of the tool, the two molding core fastening pins are both pluggable and connected to the molding mold, any of the molding core fastening pins is also provided with a limiting slide hole and two molding core fastening pin limiting blocks, the limiting slide hole is located in the middle of the molding core fastening pin, the limiting slide hole is fixedly connected to the molding core fastening pin, the two molding core fastening pin limiting blocks are horizontally parallel and respectively located on both sides of the molding core fastening pin, the two molding core fastening pin limiting blocks are both fixedly connected to the molding mold, the molding core positioning slider and the slider limiting plate are all located at a position between the two molding core fastening pins, and the molding core positioning slider is located on the inner side of the molding mold, the molding core positioning slider is pluggable and connected to the molding mold, the slider limiting plate is located at the upper part of the molding core positioning slider, The slider limit plate is fixedly connected to the forming mold, and a positioning pin lock pin and two side pins are also provided on the mold core positioning slider, the positioning pin lock pin is located on one side of the mold core positioning slider, and the positioning pin lock pin passes through the mold core positioning slider for pluggable connection, and three positioning pins are also provided on the positioning pin lock pin, and the three positioning pins are horizontally parallel and spaced at the same distance from one end of the positioning pin lock pin located close to one side of the forming mold core, and the three positioning pins are fixedly connected to the positioning pin lock pin, and the two side pins are located on both sides of the positioning pin lock pin, and the two side pins pass through the mold core positioning slider for pluggable connection, the forming mold core is located in the middle of the inner side of the forming mold, and the forming mold core is movably connected to the forming mold, and a product clamping block is also provided on the forming mold core.The product clamping block is located on one side of the forming core near the position of the core positioning slider, the product clamping block is fixedly connected to the forming core, and three product positioning holes and two side pin plug holes are also provided on the product clamping block. The three product positioning holes are spaced at the same distance and are horizontally parallel and located in the middle of one side of the product clamping block. The three product positioning holes are all fixedly connected to the product clamping block, and the two side pin plug holes are horizontally parallel and located on both sides of the three product positioning holes respectively. The two side pin plug holes are all fixedly connected to the product clamping block. The position distribution of the two side pin plug holes on the product clamping block is the same as the position distribution of the two side pins on the core positioning slider. The injection parting line is located at the upper part of the forming mold near the outer side of the forming core, and the injection parting line is fixedly connected to the forming mold. The core lifting driver is located at the lower part of the forming mold, and the core lifting driver is fixedly connected to the forming mold, and one end of the core lifting driver passes through the forming mold and is connected to the forming core.

2. According to claim 1, an insert-encapsulated suspended feeding mold is characterized in that: The two molding mold core fastening pins are both embedded mold key pins with locking top columns.

3. According to claim 1, the insert-encapsulated suspended feeding mold is characterized in that: The mold core positioning slide block is a slideway type top block.

4. According to claim 1, the insert-encapsulated suspended feeding mold is characterized in that: The molding core is a core with Teflon coating.

5. According to claim 1, the insert-encapsulated suspended feeding mold is characterized in that: The mold core lifting driver is an electrically controlled hydraulic lifting driver.

6. A working method of an insert-encapsulated suspended feeding mold according to any one of claims 1 to 5: The whole set of molds is installed on the CNC equipment, and the cylinder control switch on the CNC equipment is used to complete the injection vulcanization and encapsulation molding of the metal inserts and the extraction of the finished parts. The specific operation steps are as follows: Step 1: Open the mold core: Press the "open mold core" button on the cylinder control switch. At this time, the two mold core fastening pins on the upper part of the molding mold open outward, and confirm that the two mold core fastening pins are opened in place, so that the key pin of the molding core is opened, and the molding core is in a loose state, which is convenient for the mold core positioning slider and the demoulding of the molding core; Step 2: Open the side needle: Press the "side needle open" button on the cylinder control switch. At this time, the two side needles on one side of the mold core positioning slider open outward, and confirm that the two side needles are fully opened, so that the mold clamping state between the mold core positioning slider and the molding mold core is released, which is convenient for the subsequent ejection of the molding mold core; Step 3: Open the core positioning slider: Press the "slider open" button on the cylinder control switch. At this time, the core positioning slider will separate from the molding core, and confirm that the core positioning slider is separated in place to realize the demoulding of the core positioning slider and the molding core; Step 4: Eject the molding core: Press the "eject" button on the cylinder control switch. At this time, the mold core lifting driver at the bottom of the molding mold will push the molding core upward and confirm that the molding core is ejected in place, so that the molding core is ejected from the middle of the molding mold; Step 5. Open the positioning pin: Press the "positioning pin in" button on the cylinder control switch. At this time, the positioning pin lock pin on one side of the mold core positioning slider is ejected toward the position of the molding mold core. As the positioning pin lock pin is ejected, the three positioning pins connected to the positioning pin lock pin will also be ejected. The three positioning pins fit with one side of the raised molding mold core, thereby forming a bearing structure connecting the positioning pin and the molding mold core, so as to facilitate the positioning and placement of the metal insert; Step 6: Loading of metal inserts: The operator places the metal inserts to be injection molded and vulcanized on the molding core. Due to the fit between the positioning pin and the molding core, the operator can quickly and accurately find the fitting points between the non-functional surface of the metal insert and the molding core, which is convenient for accurate positioning and placement of the clamping position, and confirms that the metal inserts to be injection molded and vulcanized are in place; Step 7: Withdraw the positioning pin: Press the "positioning pin out" button on the cylinder control switch. At this time, the positioning pin lock pin on one side of the mold core positioning slider is withdrawn. With the withdrawal of the positioning pin lock pin, the three positioning pins connected to the positioning pin lock pin will also be stored inside the mold core positioning slider, so that the metal insert that needs to be injection vulcanized fits on the molding mold core. Step 8. Reset the mold core positioning slider: Press the "top and back" button on the cylinder control switch. At this time, the mold core lifting driver at the bottom of the molding mold will pull the molding core downward and confirm that the molding core falls back and resets, allowing the molding core to return to the middle of the molding mold. At the same time, confirm that the loaded metal inserts that need to be injection vulcanized are not deformed; Step 9. Close the core positioning slider: Press the "slider off" button on the cylinder control switch. At this time, the core positioning slider will close the mold with the forming mold core, and confirm that the core positioning slider is in place to achieve the fitting splicing of the core positioning slider and the forming mold core; Step 10, side needle closing: Press the "side needle closing" button on the cylinder control switch. At this time, the two side needles on one side of the mold core positioning slider are pushed into the molding mold core, and it is confirmed that the two side needles are inserted into the molding mold core, so that the mold core positioning slider and the molding mold core are aligned and positioned; Step 11, glue injection and finished product: close the capping mold and the molding mold, inject glue into the molding mold through the two glue injection holes on the top of the capping mold, and the glue enters the metal insert surface on the molding mold core along the glue injection parting line, thereby completing the glue coating and vulcanization operation of the metal insert. Subsequently, open the capping mold and the molding mold, and confirm that the mold is in place. Next, press the "core open" button on the cylinder control switch to confirm that the two molding core fastening pins are opened in place. Next, press the "side needle open" button on the cylinder control switch to confirm that the two side needles are opened in place. Then, press the "slider open" button on the cylinder control switch to confirm that the mold core positioning slider is separated in place. Then, press the "ejection" button on the cylinder control switch to confirm that the molding core is ejected in place. Finally, take out the glue-coated and vulcanized product from the molding core, and take out the residual material head of the glue injection and vulcanization to complete the operation.

Images