Injection mold with cooling forming function

Abstract

This invention discloses an injection mold with cooling and molding function, relating to the field of injection mold technology. It includes an injection mold mechanism comprising a lower mold and an upper mold for injection molding, both having water-cooling channels. The mold also includes: a movable plate fixed to the top of the upper mold for moving with it; guide rods disposed at the four corners of the lower and upper molds, penetrating the movable plate and extending outwards; sliding sleeves fixed to the four corners of the movable plate and slidably fitted onto the surface of the guide rods; and a protective lubrication mechanism fixed to the injection mold mechanism for lubricating and protecting the guide rods and sliding sleeves. This invention achieves automatic grease supply during the mold opening and closing stroke through a protective lubrication mechanism. The steel ball + sponge column structure enables adaptive grease supply, preventing grease shortages and overflows. Continuous and stable lubrication significantly reduces friction, wear, jamming, and seizing risks between the guide rods and sliding sleeves, ensuring long-term stable guiding accuracy and greatly extending the mold's service life.

Description

Technical Field

[0001] This invention relates to the field of injection mold technology, and in particular to an injection mold with a cooling molding function. Background Technology

[0002] In the field of injection molding, injection molds are the core equipment that determines product molding quality, production efficiency, and equipment lifespan.

[0003] However, in practical applications, there are still some unresolved problems. The following are some common problems of injection molds with cooling molding function: First, during high-speed and high-frequency mold opening and closing, the guide rod and the sliding sleeve are prone to wear, increased gap, jamming or even seizing due to long-term reciprocating friction. Traditional lubrication is done manually and periodically, and it is impossible to automatically adjust the amount of grease and the lubrication interval according to the stroke. Second, when the mold is closed, the hydraulic cylinder applies force to the middle of the moving plate, which will cause the four corners of the moving plate to generate a centripetal clamping force, which will aggravate the wear and misalignment of the guide rod and the sliding sleeve. Summary of the Invention

[0004] The purpose of this section is to outline some aspects of embodiments of the present invention and to briefly describe some preferred embodiments. Simplifications or omissions may be made in this section, as well as in the abstract and title of this application, to avoid obscuring the purpose of these documents; however, such simplifications or omissions should not be construed as limiting the scope of the invention.

[0005] In view of the problems existing in the above and / or existing injection molds with cooling molding function, the present invention is proposed.

[0006] Therefore, the problem to be solved by this invention is how to solve the problems of severe wear of the guide rod and the sliding sleeve, uneven stress and deformation of the moving plate, and inability of lubrication to be automatically adapted.

[0007] To solve the above-mentioned technical problems, the present invention provides the following technical solution: an injection mold with cooling and molding function, comprising an injection mold mechanism including a lower mold and an upper mold for injection molding, wherein both the lower mold and the upper mold have water cooling channels, and further comprising: a movable plate, fixed to the top of the upper mold for moving the upper mold together with it; guide rods, disposed at the four corners of the lower mold and the upper mold, passing through the movable plate and extending outward; sliding sleeves, fixed at the four corners of the movable plate and slidably sleeved on the surface of the guide rods; and a protective lubrication mechanism, fixed to the injection mold mechanism for lubricating the guide rods and sliding sleeves. The lubrication protection between them includes: a lubricating component installed inside the sliding sleeve; a transmission component, a suction and discharge component, and a grease tank are respectively installed on the injection mold mechanism, the suction and discharge component is connected to the grease tank and the sliding sleeve respectively, and the transmission component can drive the suction and discharge component to suction and discharge under the movement of the moving plate; a pressure mechanism is installed on the injection mold mechanism, which includes a holding component and a linkage component installed on the moving plate, the holding component is equipped with a striking component, and the holding component cooperates with the linkage component and the striking component respectively; the linkage component reduces the centripetal clamping force at the four corners of the moving plate, and the striking component assists in the dispersion of the injection liquid, venting and demolding.

[0008] As a preferred embodiment of the injection mold with cooling and molding function described in this invention, the injection mold mechanism further includes a base, and the lower mold is fixed on the base; the lower end of the guide rod is fixed to the top of the base, the upper end of the guide rod is fixed to a support plate, and the grease tank is fixed to the top of the support plate; a drive assembly is installed on the support plate, and the moving plate is fixed to the lower end of the drive assembly.

[0009] As a preferred embodiment of the injection mold with cooling and molding function described in this invention, the lubricating component includes an annular groove, a groove body, and a channel formed within the sliding sleeve; the channel is connected to the annular groove and the groove body respectively, and a cylinder slides within the groove body; a steel ball is embedded at one end of the cylinder, and the steel ball abuts against a guide rod; a hole one is formed on the inner wall of the groove body, and a hole two is formed on the cylinder, with the hole one and hole two fitting together; a sponge column is filled inside the cylinder, and a spring sheet is fixed between one end of the cylinder and the inner wall of the groove body.

[0010] As a preferred embodiment of the injection mold with cooling and molding function described in this invention, the transmission component includes a circular sleeve that rotates on a support plate, and a vertical rod that slides inside the circular sleeve; the lower end of the vertical rod is fixed to the top of the moving plate, and a guide groove is provided on the surface of the vertical rod; a ball is embedded in the inner wall of the circular sleeve, and the ball slides in the guide groove; a ratchet is fixedly sleeved on the surface of the circular sleeve, and a gear is fixedly sleeved on the outer ring surface of the ratchet, and the gear cooperates with the suction and discharge component.

[0011] As a preferred embodiment of the injection mold with cooling and molding function described in this invention, the suction and discharge component includes a fixing plate fixed to the top of the support plate, and a cylinder is fixed on the fixing plate; a piston slides inside the cylinder, and one end of the cylinder is connected to a one-way valve one and a one-way valve two respectively; a bent pipe is connected between one end of one-way valve one and the grease tank, a connecting pipe is fixed on the sliding sleeve, and one end of the connecting pipe is connected to the annular groove; a flexible hose is connected between one end of one-way valve two and the connecting pipe.

[0012] As a preferred embodiment of the injection mold with cooling and molding function described in this invention, the suction and discharge component further includes a short plate fixed to the top of the support plate, and a spline rod sliding on the short plate and the cylinder; one end of the spline rod is fixed to one side of the piston, and the other end is fixed to a movable frame; a vertical column is rotatably mounted on the top of the support plate, and a gear two is fixed at the upper end of the vertical column, which meshes with gear one; a locking rod is provided on gear two, and the upper end of the locking rod slides within the movable frame.

[0013] As a preferred embodiment of the injection mold with cooling and molding function described in this invention, the driving assembly includes a hydraulic cylinder fixed to a support plate, and a circular plate fixed to the output end of the hydraulic cylinder; a short rod slides on the circular plate, and the lower end of the short rod is fixed to the top of a moving plate, and a stop block is fixed to the upper end, and the stop block cooperates with the circular plate; a second spring is sleeved on the surface of the short rod, and the two ends of the second spring are respectively fixed to the bottom of the circular plate and the top of the moving plate; a limiting block is fixedly sleeved on the surface of the short rod, and a rubber pad is fixed to the top of the limiting block.

[0014] As a preferred embodiment of the injection mold with cooling and molding function described in this invention, the pressing component includes a frame fixed to a moving plate, and a square tube sliding on the frame; a square column sliding inside the square tube, and a pressing block fixed at the lower end of the square column; a square block fixedly sleeved on the lower surface of the square tube, and a spring three sleeved on the surface of the square column, with the two ends of the spring three respectively fixed to the bottom of the square block and the top of the pressing block; a short column fixed on the upper surface of the square tube, and the short column cooperates with the linkage component.

[0015] As a preferred embodiment of the injection mold with cooling and molding function described in this invention, the linkage includes a fixed frame fixed to the top of the moving plate, and rotating columns one and two are respectively rotatable on the fixed frame; a slant plate is fixedly sleeved in the middle of rotating column one; gear three is fixedly sleeved at both ends of rotating column one, and gear four is fixedly sleeved at both ends of rotating column two, and gear three and gear four mesh with each other; a connecting plate is fixed to one side of gear four, and a guide hole is opened at one end of the connecting plate; the short column slides in the guide hole.

[0016] As a preferred embodiment of the injection mold with cooling and molding function described in this invention, the striking component includes a slider that slides on the frame, and a toothed plate is fixed at one end of the slider; a round rod rotates on the frame, and a spring rod is fixed at one end of the round rod, and a rubber ball is fixed at one end of the spring rod; a gear five is fixedly sleeved on the surface of the round rod, and the gear five meshes with the toothed plate.

[0017] The beneficial effects of this invention are as follows: 1. Adaptive and precise lubrication significantly improves the lifespan of guide components. The protective lubrication mechanism automatically supplies grease during the mold opening and closing stroke. The steel ball + sponge column structure achieves adaptive oil supply in the gap, without grease shortage or overflow. Continuous and stable lubrication significantly reduces the risk of friction, wear, jamming and seizing between the guide rod and the sliding sleeve. The guiding accuracy is stable in the long term, which greatly extends the service life of the mold.

[0018] 2. Balanced pressure at all four corners improves mold closing accuracy. After mold closing, the pressure mechanism applies synchronous auxiliary pressure to the four corners of the moving plate, effectively reducing the centripetal clamping force, preventing deformation of the moving plate and misalignment or jamming of the sliding sleeve, resulting in tighter and more precise mold closing, more stable long-term operation, and a significant reduction in product flash and misalignment problems. Attached Figure Description

[0019] To more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the following description of the embodiments will be briefly introduced. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0020] Figure 1 This is a scene illustration of an injection mold with cooling and molding capabilities.

[0021] Figure 2 This is a partial sectional perspective view of an injection mold with cooling and molding functions.

[0022] Figure 3 This is a partial sectional perspective view of the sliding sleeve, guide rod, and moving plate of an injection mold with cooling and molding functions.

[0023] Figure 4 This is a partial 3D view of the structure of an injection mold with cooling and molding functions.

[0024] Figure 5 A partial sectional perspective view of the support frame for an injection mold with cooling and molding functions.

[0025] Figure 6 This is a partial sectional perspective view of the frame, square tube, and square column of an injection mold with cooling and molding function.

[0026] Figure 7 This is a partial sectional perspective view of the circular sleeve of an injection mold with cooling and molding functions.

[0027] Figure 8 This is a partial sectional plan view of the ratchet of an injection mold with cooling and molding functions.

[0028] Figure 9This is a partial sectional perspective view of the lower mold of an injection mold with cooling and molding functions.

[0029] In the diagram: 1. Injection mold mechanism; 11. Lower mold; 12. Upper mold; 13. Guide rod; 14. Sliding sleeve; 15. Base; 16. Support plate; 17. Moving plate; 18. Drive assembly; 19. Cover; 110. Telescopic sleeve; 111. Water cooling channel; 2. Protective lubrication mechanism; 21. Lubricating component; 22. Transmission component; 23. Suction and discharge component; 24. Grease tank; 3. Pressing mechanism; 31. Holding component; 32. Linkage component; 33. Striking component; 211 212. Circular groove; 213. Groove body; 214. Channel; 215. Cylinder; 216. Steel ball; 217. Hole 1; 218. Hole 2; 219. Sponge column; 210. Guide post; 221. Spring piece; 221. Circular sleeve; 222. Vertical rod; 223. Guide groove; 224. Ball bearing; 225. Ratchet; 226. Gear 1; 231. Fixing plate; 232. Cylinder body; 233. Piston; 234. One-way valve 1; 235. One-way valve 2; 236. Bend; 237. Connecting pipe; 238. Flexible hose; 239. Short plate; 2310. Spline rod; 2311. Moving frame; 2312. Vertical column; 2313. Gear II; 2314. Locking rod; 2315. Pull plate; 2316. Spring I; 181. Hydraulic cylinder; 182. Round plate; 183. Short rod; 184. Abutment block; 185. Spring II; 186. Limiting block; 187. Rubber pad; 311. Frame; 312. 313. Square tube; 314. Square column; 315. Pressure block; 316. Square block; 317. Spring three; 328. Short column; 329. Fixing frame; 320. Rotating column one; 321. Rotating column two; 322. Inclined plate; 323. Gear three; 324. Gear four; 325. Connecting plate; 326. Guide hole; 327. Roller; 338. Slider; 339. Toothed plate; 330. Round rod; 331. Spring rod; 332. Rubber ball; 333. Gear five. Detailed Implementation

[0030] To make the above-mentioned objects, features and advantages of the present invention more apparent and understandable, the specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

[0031] Many specific details are set forth in the following description in order to provide a full understanding of the invention. However, the invention may also be practiced in other ways different from those described herein, and those skilled in the art can make similar extensions without departing from the spirit of the invention. Therefore, the invention is not limited to the specific embodiments disclosed below.

[0032] Secondly, the term "one embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The phrase "in one embodiment" appearing in different places in this specification does not necessarily refer to the same embodiment, nor is it a single or selective embodiment that is mutually exclusive with other embodiments.

[0033] Example 1, referring to Figure 1 , Figure 2 , Figure 4 and Figure 9 This is the first embodiment of the present invention. This embodiment provides an injection mold with a cooling and molding function. The injection mold with the cooling and molding function includes an injection mold mechanism 1, a protection and lubrication mechanism 2, and a pressure application mechanism 3.

[0034] Specifically, the injection mold mechanism 1 includes a lower mold 11 and an upper mold 12 for injection molding. Both the lower mold 11 and the upper mold 12 have water cooling channels 111. The upper mold 12 and the lower mold 11 are fitted together. The upper mold 12 is provided with an injection pipe with a control valve. Both the upper mold 12 and the lower mold 11 are equipped with inlet and outlet pipes that are connected to the water cooling channels 111 for connecting to the cooling device to cool and shape the injection molded workpiece. The upper mold 12 and the lower mold 11 are also equipped with preheaters and temperature sensors for preheating and temperature monitoring before injection molding. The lower mold 11 has a workpiece ejection structure. All of the above are existing technologies. The working principle of this part is also existing technology and can be clearly understood by those skilled in the art, so it will not be described in detail here.

[0035] Specifically, the movable plate 17 is fixed to the top of the upper mold 12 and is used for the upper mold 12 to move together with it; the upper mold 12 is fixed to the bottom of the movable plate 17 by bolts and nuts, which can realize disassembly and assembly operations.

[0036] Specifically, guide rods 13 are located at the four corners of the lower mold 11 and the upper mold 12, and pass through the moving plate 17 and extend to the outside; there are four guide rods 13, which are symmetrically distributed.

[0037] Specifically, the sliding sleeve 14 is fixed to the four corners of the moving plate 17 and slidably sleeved on the surface of the guide rod 13; there are four sliding sleeves 14, which are fixed to the four corners of the moving plate 17 by bolts and correspondingly sleeved on the surface of the four guide rods 13. The sliding sleeves 14 and the guide rods 13 guide the moving plate 17, thereby guiding the upper mold 12, and accurately closing the mold with the cooperation of the positioning pins and positioning grooves of the upper mold 12 and the lower mold 11.

[0038] Specifically, the protective lubrication mechanism 2 is fixed on the injection mold mechanism 1 and is used for lubrication protection between the guide rod 13 and the sliding sleeve 14. Due to the different specifications that the same product may be produced, the upper mold 12 and the lower mold 11 may have different specifications. The range of vertical movement of the upper mold 12 changes, which causes the distance that the sliding sleeve 14 on the moving plate 17 moves back and forth on the guide rod 13 to change. The protective lubrication mechanism 2 can adjust the lubrication distance and interval time according to the distance that the sliding sleeve 14 moves on the guide rod 13 after changing the upper mold 12 and the lower mold 11 of different specifications.

[0039] Specifically, the lubricant 21 is installed inside the sliding sleeve 14 and is used to lubricate the guide rod 13 and the sliding sleeve 14. By setting the lubricant 21, the lubrication between the guide rod 13 and the sliding sleeve 14 is reduced, thus reducing the possibility of strain, seizing and jamming between them.

[0040] Specifically, the injection mold mechanism 1 is equipped with a transmission component 22, a suction and discharge component 23 and a grease tank 24. The suction and discharge component 23 is connected to the grease tank 24 and the sliding sleeve 14 respectively. The transmission component 22 can drive the suction and discharge component 23 to suction and discharge under the movement of the moving plate 17.

[0041] By setting the transmission component 22, when the moving plate 17 and the upper mold 12 move up and down together, the transmission component 22 can be activated, causing the transmission component 22 to drive the suction and discharge component 23 to slowly suck out the grease in the grease tank 24, and then slowly discharge it through the lubrication component 21, thereby providing lubrication protection between the guide rod 13 and the sliding sleeve 14. The interval time of each lubrication is adjusted according to the moving distance of the sliding sleeve 14 on the guide rod 13. The longer the moving distance, the shorter the interval time of each lubrication, and the shorter the moving distance, the longer the interval time of each lubrication.

[0042] Specifically, the pressure applying mechanism 3 is installed on the injection mold mechanism 1. It includes a holding member 31 and a linkage member 32 installed on the moving plate 17. After the upper mold 12 and the lower mold 11 are closed, the middle of the moving plate 17 continues to be stressed to keep the upper mold 12 and the lower mold 11 in a tight fit. At the same time, force is applied to the four corners of the moving plate 17 to avoid the four corners being subjected to a clamping force towards the center after the middle of the moving plate 17 is stressed. Long-term use will lead to increased friction between the sliding sleeve 14 and the guide rod 13, wear of the mating surface, and increased gap, which may result in jamming, deflection, or even damage and jamming. The four corners of the moving plate 17 are subjected to balanced auxiliary pressure to reduce the centripetal clamping force at the four corners caused by the force in the middle of the moving plate 17. In conjunction with the protection and lubrication mechanism 2, it can play a good lubrication and protection role.

[0043] A striking element 33 is installed on the holding member 31, and the holding member 31 cooperates with the linkage member 32 and the striking element 33 respectively. Through the setting of the linkage member 32, after the driving component 18 on the injection mold mechanism 1 drives the moving plate 17 to move down, the upper mold 12 and the lower mold 11 are closed, and the action continues to act on the moving plate 17. At the same time, the linkage member 32 acts, and the linkage member 32 applies pressure to the four corners of the holding member 31, thereby reducing the centripetal clamping force at the four corners of the moving plate 17 caused by the force on the center. Through the setting of the striking element 33, after the mold is closed, the moving plate 17 can be struck by the action of the holding member 31, so that the injection liquid in the mold can be better dispersed and the air bubbles can be discharged. In addition, during subsequent demolding and resetting, the moving plate 17 can be struck to assist demolding.

[0044] Example 2, refer to Figures 1 to 8 This is the second embodiment of the present invention, which is based on the previous embodiment.

[0045] Specifically, the injection mold mechanism 1 also includes a base 15, and the lower mold 11 is fixed on the base 15; the lower end of the guide rod 13 is fixed to the top of the base 15, and the upper end of the guide rod 13 is fixed with a support plate 16, and the grease tank 24 is fixed to the top of the support plate 16; a drive assembly 18 is installed on the support plate 16, and a moving plate 17 is fixed to the lower end of the drive assembly 18; a lifting mechanism is installed in the base 15, which is located at the bottom of the lower mold 11, and cooperates with the workpiece ejection structure on the lower mold 11 to realize the ejection of the workpiece after molding. This is the prior art, which can be clearly understood by those skilled in the art, and will not be described in detail here. The drive assembly 18 can drive the moving plate 17 and the upper mold 12 to move up and down, thereby realizing the mold closing and opening between the upper mold 12 and the lower mold 11.

[0046] A cover 19 is detachably fixed to the top of the support plate 16, and a telescopic sleeve 110 is detachably fixed between the bottom of the support plate 16 and the top of the moving plate 17. The cover 19 shields the internal structure. The telescopic sleeve 110 is made of rubber and is corrugated. It is telescopic and can extend and retract. This is existing technology and can be clearly understood by those skilled in the art. It will not be described in detail here. It shields and protects the internal structure without affecting the movement of the moving plate 17.

[0047] Specifically, the lubricating element 21 includes an annular groove 211, a groove 212, and a channel 213 formed in the sliding sleeve 14. The channel 213 is connected to the annular groove 211 and the groove 212 respectively. Each sliding sleeve 14 is provided with a lubricating element 21. The annular groove 211 is annular. There are several grooves 212 and channels 213, which are arranged in a circumferential array. The annular groove 211 is connected to the groove 212 through the channel 213. A cylinder 214 slides in the groove 212. A steel ball 215 is embedded at one end of the cylinder 214 and abuts against the guide rod 13. There are several cylinders 214 and steel balls 215, which are arranged in a circumferential array. The cylinder 214 is sealed with the groove 212 and the sliding sleeve 14. The steel ball 215 is rotatably connected to the cylinder 214.

[0048] The inner wall of the groove 212 has a hole 216, and the cylinder 214 has a hole 217, with hole 216 and hole 217 fitting together. Through the arrangement of steel balls 215, after the suction and discharge component 23 draws grease into the cylinder 214 through the annular groove 211, channel 213, groove 212, hole 216, and hole 217, when the moving plate 17 and upper mold 12 move up and down, the rolling balls 224 in contact with the guide rod 13 move up and down and rotate accordingly, thereby transferring the grease in the cylinder 214 to the guide rod 13. The lubrication between the guide rod 13 and the sliding sleeve 14 is achieved by setting the first hole 216 and the second hole 217. The size of the opening into the cylinder 214 can be adjusted. According to the contact between the steel ball 215 and the surface of the guide rod 13, the gap of sliding contact between the guide rod 13 and the sliding sleeve 14 is fed back. The larger the gap, the more oil is supplied; the smaller the gap, the more precise the oil supply. This adaptive matching lubrication avoids insufficient lubrication or excessive oil overflow caused by gap changes, and ensures long-term stable, low-friction, and jam-free operation of the guide rod 13 and the sliding sleeve 14.

[0049] The inner cavity of the cylinder 214 is filled with a sponge column 218. The sponge column 218 can store, slowly release, and uniformly guide the grease entering the cylinder 214, so that the grease is stably and uniformly delivered to the contact part between the steel ball 215 and the guide rod 13. At the same time, the sponge column 218 can adaptively squeeze and release the grease according to the contact pressure and fit clearance changes between the steel ball 215 and the guide rod 13. A spring piece 2110 is fixed between one end of the cylinder 214 and the inner wall of the groove 212. The spring piece 2110 provides force to the cylinder 214, so that the steel ball 215 and the surface of the guide rod 13 are always in close contact. A guide post 219 slides on the sliding sleeve 14, and one end of the guide post 219 is fixed to one end of the cylinder 214. The cross-section of the guide post 219 is hexagonal, which plays a guiding and limiting role for the cylinder 214, so that the cylinder 214 will not rotate in the sliding sleeve 14.

[0050] Specifically, the transmission component 22 includes a circular sleeve 221 that rotates on the support plate 16, and a vertical rod 222 that slides inside the circular sleeve 221; there are two transmission components 22. The circular sleeve 221 is rotatably connected to the support plate 16 through a bearing, and the vertical rod 222 passes through the circular sleeve 221 and is slidably connected to it. The lower end of the vertical rod 222 is fixed to the top of the moving plate 17, and a guide groove 223 is provided on the surface of the vertical rod 222; a ball bearing 224 is embedded in the inner wall of the circular sleeve 221, and the ball bearing 224 slides in the guide groove 223; a ratchet 225 is fixedly sleeved on the surface of the circular sleeve 221, and a gear 226 is fixedly sleeved on the outer ring surface of the ratchet 225, and the gear 226 cooperates with the suction and discharge component 23.

[0051] The ball bearing 224 is rotatably connected to the inner wall of the sleeve 221. Through the setting of the guide groove 223, the ball bearing 224 can cause the sleeve 221 to rotate when it moves inside. The vertical rod 222 controls the range of movement of the ball bearing 224 in the guide groove 223 as the moving plate 17 moves downward, thereby controlling the rotation angle of the ratchet 225 and the gear 226, and thus acting on the corresponding suction and discharge component 23. The lubrication interval is controlled according to the distance when the upper and lower molds are closed. The gear 226 rotates multiple times before the suction and discharge component 23 can perform a suction and discharge action to supply grease. The ratchet 225 enables unidirectional drive. When the moving plate 17 moves downward and drives the vertical rod 222 downward, it can drive the ratchet 225 to rotate, thereby causing the gear 226 to rotate. When the moving plate 17 moves upward and drives the vertical rod 222 upward, it can drive the inner ring of the ratchet 225 to rotate, but will not cause the outer ring of the ratchet 225 and the gear 226 to rotate.

[0052] Specifically, the suction and discharge component 23 includes a fixing plate 231 fixed to the top of the support plate 16, and a cylinder 232 is fixed on the fixing plate 231; there are two suction and discharge components 23, which correspond to two transmission components 22 respectively. A piston 233 slides inside the cylinder 232. One end of the cylinder 232 is connected to a one-way valve 234 and a one-way valve 235 respectively; a bent pipe 236 is connected between one end of the one-way valve 234 and the grease tank 24. Two fixing plates 231 are provided on one cylinder 232. The piston 233 is sealed to the cylinder 232. The end of the bent pipe 236 away from the one-way valve 234 passes through the grease tank 24 and extends to the bottom of the inner cavity.

[0053] A connecting pipe 237 is fixed on the sliding sleeve 14, and one end of the connecting pipe 237 is connected to the annular groove 211. A hose 238 is connected between one end of the one-way valve 235 and the connecting pipe 237. Through the setting of the one-way valve 234 and the one-way valve 235, the grease can flow in one direction. When the piston 233 moves back and forth in the cylinder 232, the grease in the grease tank 24 can enter the cylinder 232 through the bend pipe 236 and the one-way valve 234, and then be transported from the cylinder 232 to the annular groove 211 in the sliding sleeve 14 through the one-way valve 235, the hose 238 and the connecting pipe 237. Then, the sliding sleeve 14 is lubricated as it moves on the guide rod 13.

[0054] Specifically, the suction and discharge component 23 also includes a short plate 239 fixed to the top of the support plate 16, and a splined rod 2310 sliding on the short plate 239 and the cylinder 232; the short plate 239 is provided with a moving hole that cooperates with the movement of the splined rod 2310, so that the splined rod 2310 will not rotate when it moves on the short plate 239; one end of the splined rod 2310 is fixed to one side of the piston 233, and the other end is fixed to a moving frame 2311; a vertical column 2312 is rotatably mounted on the top of the support plate 16, and a tooth is fixed on the upper end of the vertical column 2312. Gear 2313 meshes with gear 1 226; gear 2313 is equipped with a locking rod 2314, and the upper end of the locking rod 2314 slides within the moving frame 2311; the vertical column 2312 is rotatably connected to the support plate 16 through a damping bearing. With the locking rod 2314, when it rotates with gear 2313, it can drive the moving frame 2311 to reciprocate, thereby driving the spline rod 2310 and piston 233 to move, so that the piston 233 moves within the cylinder 232.

[0055] A pull plate 2315 is fixed to the lower end of the lever 2314. A spring 2316 is sleeved on the lower surface of the lever 2314, and the two ends of the spring 2316 are respectively fixed between the bottom of the gear 2313 and the top of the pull plate 2315. The spring 2316 allows the upper end of the lever 2314 to be stably inserted into the moving frame 2311. When it needs to be used again after a long period of disuse, the pull plate 2315 can be pulled to disengage the upper end of the lever 2314 from the moving frame 2311. At the same time, the spring 2316 deforms, rotating the gear 2313 and the lever 2314, and pulling the moving frame 2311 to drive the spline rod 2310 to move the piston 233 in the cylinder 232, drawing grease into the cylinder 232. Then the lever 2314 is inserted into the moving frame 2311 to prepare for lubrication between the guide rod 13 and the sliding sleeve 14 during use.

[0056] Example 3, referring to Figures 2-6 This is the third embodiment of the present invention, which is based on the first two embodiments.

[0057] Specifically, the drive assembly 18 includes a hydraulic cylinder 181 fixed on the support plate 16, and a circular plate 182 fixed at the output end of the hydraulic cylinder 181; a short rod 183 slides on the circular plate 182, and the lower end of the short rod 183 is fixed to the top of the moving plate 17, and a stop block 184 is fixed at the upper end, and the stop block 184 cooperates with the circular plate 182; a second spring 185 is sleeved on the surface of the short rod 183, and the two ends of the second spring 185 are respectively fixed to the bottom of the circular plate 182 and the top of the moving plate 17; a limiting block 186 is fixedly sleeved on the surface of the short rod 183, and a rubber pad 187 is fixed to the top of the limiting block 186.

[0058] There are several short rods 183, abutments 184, springs 185, limit blocks 186, and rubber pads 187, which are arranged in a circular array. The short rods 183 pass through the circular plate 182 and slide to it. With the abutments 184, when the circular plate 182 contacts and abuts the abutments 184, the hydraulic cylinder 181 extends and retracts, causing the circular plate 182 to move up and down, which in turn causes the abutments 184, short rods 183, moving plates 17, and upper molds 12 to move up and down.

[0059] With the spring 185 in place, after the hydraulic cylinder 181 extends and drives the stop block 184, short rod 183, moving plate 17 and upper mold 12 to move downward, the upper mold 12 and lower mold 11 close. As the hydraulic cylinder 181 continues to extend, the circular plate 182 moves downward and compresses the spring 185, which in turn applies pressure to the moving plate 17, tightly closing the upper mold 12 and lower mold 11. With the limit block 186 and rubber pad 187 in place, the continued movement of the circular plate 182 after mold closing is limited, and at the same time, it plays a role in buffer protection.

[0060] Specifically, the holding member 31 includes a frame 311 fixed on the moving plate 17, and a square tube 312 sliding on the frame 311; there are four pressure applying mechanisms 3, which are symmetrically distributed on the moving plate 17. The square tube 312 passes through the frame 311 and is slidably connected to it. A square column 313 slides inside the square tube 312, and a pressure block 314 is fixed at the lower end of the square column 313; a square block 315 is fixedly sleeved on the lower surface of the square tube 312, and a spring 316 is sleeved on the surface of the square column 313. The two ends of the spring 316 are respectively fixed to the bottom of the square block 315 and the top of the pressure block 314; a short column 317 is fixed on the upper surface of the square tube 312, and the short column 317 cooperates with the linkage member 32.

[0061] With the setting of spring 316, after the upper mold 12 and the lower mold 11 are closed, as the circular plate 182 moves down and applies pressure to spring 2 185, the circular plate 182 simultaneously acts on the linkage 32 to make the short column 317, square tube 312 and block 315 move down. The block 315 moves down and applies pressure to spring 316, which in turn applies pressure to the four corners of the moving plate 17 by the pressure block 314. This reduces the centripetal clamping force at the four corners of the moving plate 17 caused by the force in the middle, and reduces the situation of increased friction, wear of mating surfaces and increased clearance between the sliding sleeve 14 and the guide rod 13 due to long-term use.

[0062] Specifically, the linkage 32 includes a fixed frame 321 fixed to the top of the moving plate 17, and a rotating column 322 and a rotating column 323 are respectively rotatable on the fixed frame 321; a slant plate 324 is fixedly sleeved in the middle of the rotating column 322; a gear 325 is fixedly sleeved at both ends of the rotating column 322, and a gear 4 326 is fixedly sleeved at both ends of the rotating column 323, and the gear 325 meshes with the gear 4 326; a connecting plate 327 is fixed on one side of the gear 4 326, and a guide hole 328 is opened at one end of the connecting plate 327; a short column 317 slides in the guide hole 328, and a roller 329 rotates at one end of the slant plate 324, and the ball 224 cooperates with the circular plate 182.

[0063] Both rotating columns 322 and 323 are rotatably connected to the fixed frame 321 via bearings. With the setting of gears 325 and 326, the inclined plate 324 rotates after being pressed down by the circular plate 182, thereby driving rotating columns 322 and 325 to rotate, causing gears 326, rotating columns 323 and connecting plate 327 to rotate, thereby causing short column 317 to move in the guide hole 328, causing square tube 312, short column 317 and square block 315 to move down, applying pressure to spring 185. The setting of roller 329 reduces the resistance between the circular plate 182 and the inclined plate 324, reducing friction.

[0064] Specifically, the striking component 33 includes a slider 331 that slides on the frame 311, and a toothed plate 332 is fixed at one end of the slider 331; the frame 311 has a sliding hole that moves in conjunction with the slider 331; a round rod 333 rotates on the frame 311, and a spring rod 334 is fixed at one end of the round rod 333, and a rubber ball 335 is fixed at one end of the spring rod 334; a gear 336 is fixedly sleeved on the surface of the round rod 333, and the gear 336 meshes with the toothed plate 332.

[0065] The round rod 333 is rotatably connected to the frame 311 via a bearing. Multiple spring rods 334 are provided on one round rod 333 and are arranged in a circumferential array. The spring rods 334 are made of elastic metal. With the setting of rubber balls 335, after the mold is tightly closed, as the round plate 182 continues to move and contact the rubber pad 187, the block 315 can drive the slider 331 and the toothed plate 332 to move down when the frame 311 moves up and down. The movement of the toothed plate 332 drives the gear five 336 to rotate, which in turn drives the spring rods 334 arranged in a circumferential array to rotate, thereby driving the rubber balls 335 to strike the moving plate 17, so that the injection liquid in the mold can be better dispersed and the air bubbles can be discharged. In addition, during the subsequent cooling, molding, demolding and resetting, the moving plate 17 can be struck to assist demolding.

[0066] During use, the mold opening and closing and adaptive lubrication are as follows: the hydraulic cylinder 181 drives the moving plate 17 and the upper mold 12 to move up and down, and the sliding sleeve 14 slides along the guide rod 13; the vertical rod 222 moves with the moving plate 17, and drives the circular sleeve 221 and the ratchet 225 to rotate in one direction through the guide groove 223 and the ball 224, which drives the gear 226 and the suction and discharge component 23 to operate, pumping the grease in the grease tank 24 into the annular groove 211 in the sliding sleeve 14; the grease enters the cylinder 214 through the channel 213, and is slowly released by the sponge column 218. The steel ball 215 rolls with the sliding to evenly coat the guide rod 13 with the grease; the spring piece 2110 keeps the steel ball 215 pressed against the guide rod 13, realizing adaptive lubrication where the larger the gap, the more oil is supplied, and the smaller the gap, the more accurate the oil supply. Moreover, the longer the stroke, the shorter the lubrication interval.

[0067] Balanced pressure to eliminate clamping force: After mold closing, hydraulic cylinder 181 continues to press down, circular plate 182 compresses spring 185 and presses the moving plate 17; at the same time, circular plate 182 presses against inclined plate 324, and drives connecting plate 327 to rotate through gear transmission, driving square tube 312 and pressure block 314 to apply balanced pressure to the four corners of moving plate 17, offsetting the centripetal clamping force generated by the force in the middle, and reducing the lateral extrusion wear of guide rod 13 and sliding sleeve 14.

[0068] Vibration-assisted injection molding + tapping-assisted demolding: When the holding part 31 moves down, it drives the slider 331 and the toothed plate 332 to move, driving the gear 336, spring rod 334 and rubber ball 335 to rotate and tap the moving plate 17; during the mold closing stage, vibration makes the melt fill the mold evenly and vent quickly, reducing air hole defects; during the mold opening stage, vibration loosens the product from the cavity, assists in smooth demolding, and avoids tearing.

[0069] Water-cooled rapid cooling molding: Water cooling channels 111 are provided inside both the upper and lower molds. After injection molding, circulating coolant is introduced to quickly and evenly cool down the mold and shorten the molding cycle.

[0070] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit it. Although the present invention has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention, and all such modifications or substitutions should be covered within the scope of the claims of the present invention.

Claims

1. An injection mold with a cooling and molding function, characterized in that: include, The injection mold mechanism (1) includes a lower mold (11) and an upper mold (12) for injection molding, and both the lower mold (11) and the upper mold (12) have water cooling channels (111). It also includes: The movable plate (17) is fixed to the top of the upper mold (12) and is used to move the upper mold (12) together with it; The guide rod (13) is located at the four corners of the lower mold (11) and the upper mold (12), and passes through the moving plate (17) and extends to the outside; Sliding sleeve (14) is fixed at the four corners of the moving plate (17) and is slidably sleeved on the surface of the guide rod (13); A protective lubrication mechanism (2), fixed to the injection mold mechanism (1), is used for lubrication protection between the guide rod (13) and the sliding sleeve (14), and includes: Lubricating component (21) is installed inside the sliding sleeve (14); The injection mold mechanism (1) is equipped with a transmission component (22), a suction and discharge component (23) and a grease tank (24). The suction and discharge component (23) is connected to the grease tank (24) and the sliding sleeve (14) respectively. The transmission component (22) can drive the suction and discharge component (23) to suction and discharge under the movement of the moving plate (17). The pressure application mechanism (3) is installed on the injection mold mechanism (1), and includes a holding member (31) and a linkage member (32) installed on the moving plate (17). A striking member (33) is installed on the holding member (31), and the holding member (31) cooperates with the linkage member (32) and the striking member (33) respectively. Linkage component (32) reduces the centripetal clamping force of the four corners of the moving plate (17), and the striking component (33) assists in the dispersion, venting and demolding of the injection liquid.

2. The injection mold with cooling and molding function as described in claim 1, characterized in that: The injection mold mechanism (1) also includes a base (15), and the lower mold (11) is fixed on the base (15); The lower end of the guide rod (13) is fixed to the top of the base (15), and the upper end of the guide rod (13) is fixed with a support plate (16), and the grease tank (24) is fixed to the top of the support plate (16); A drive assembly (18) is mounted on the support plate (16), and a moving plate (17) is fixed to the lower end of the drive assembly (18).

3. The injection mold with cooling and molding function as described in claim 1 or 2, characterized in that: The lubricating element (21) includes an annular groove (211), a groove (212), and a channel (213) formed in the sliding sleeve (14). The channel (213) is connected to the annular groove (211) and the groove (212) respectively, and a cylinder (214) slides inside the groove (212). A steel ball (215) is embedded at one end of the cylinder (214), and the steel ball (215) abuts against the guide rod (13); The inner wall of the tank (212) is provided with a hole 1 (216), and the cylinder (214) is provided with a hole 2 (217), and the hole 1 (216) and the hole 2 (217) are matched; The inner cavity of the cylinder (214) is filled with a sponge column (218), and a spring piece (2110) is fixed between one end of the cylinder (214) and the inner wall of the groove (212).

4. The injection mold with cooling and molding function as described in claim 3, characterized in that: The transmission component (22) includes a circular sleeve (221) that rotates on the support plate (16), and a vertical rod (222) slides inside the circular sleeve (221). The lower end of the vertical rod (222) is fixed to the top of the moving plate (17), and a guide groove (223) is provided on the surface of the vertical rod (222). The inner wall of the sleeve (221) is fitted with balls (224), and the balls (224) slide in the guide groove (223); A ratchet (225) is fixedly fitted on the surface of the round sleeve (221), and a gear (226) is fixedly fitted on the outer ring surface of the ratchet (225), which cooperates with the suction and discharge component (23).

5. The injection mold with cooling and molding function as described in claim 2 or 4, characterized in that: The suction and discharge component (23) includes a fixing plate (231) fixed to the top of the support plate (16), and a cylinder (232) is fixed on the fixing plate (231). A piston (233) slides inside the cylinder (232), and one end of the cylinder (232) is connected to a one-way valve (234) and a one-way valve (235). A bend (236) is connected between one end of the check valve (234) and the grease tank (24). A connecting pipe (237) is fixed on the sliding sleeve (14), and one end of the connecting pipe (237) is connected to the annular groove (211). A flexible hose (238) is connected between one end of the check valve (235) and the connecting pipe (237).

6. The injection mold with cooling and molding function as described in claim 5, characterized in that: The suction and discharge component (23) also includes a short plate (239) fixed to the top of the support plate (16), and a spline rod (2310) slides on the short plate (239) and the cylinder (232). One end of the spline rod (2310) is fixed to one side of the piston (233), and the other end is fixed to a movable frame (2311). The top of the support plate (16) has a rotating vertical column (2312), and the upper end of the vertical column (2312) is fixed with a gear two (2313), which meshes with gear one (226); Gear 2 (2313) is provided with a locking rod (2314), and the upper end of the locking rod (2314) slides within the moving frame (2311).

7. The injection mold with cooling and molding function as described in claim 2, characterized in that: The drive assembly (18) includes a hydraulic cylinder (181) fixed on a support plate (16), and a circular plate (182) is fixed at the output end of the hydraulic cylinder (181). A short rod (183) slides on the circular plate (182), and the lower end of the short rod (183) is fixed to the top of the moving plate (17), and the upper end is fixed with a stop block (184), and the stop block (184) cooperates with the circular plate (182); A spring 2 (185) is fitted on the surface of the short rod (183), and the two ends of the spring 2 (185) are fixed to the bottom of the circular plate (182) and the top of the moving plate (17), respectively; A limiting block (186) is fixedly sleeved on the surface of the short rod (183), and a rubber pad (187) is fixed on the top of the limiting block (186).

8. The injection mold with cooling and molding function as described in claim 7, characterized in that: The pressing member (31) includes a frame (311) fixed on the movable plate (17), and a square tube (312) slides on the frame (311). A square column (313) slides inside the square tube (312), and a pressure block (314) is fixed at the lower end of the square column (313). A square block (315) is fixedly fitted on the lower end surface of the square tube (312), and a spring three (316) is fitted on the surface of the square column (313), with the two ends of the spring three (316) fixed to the bottom of the square block (315) and the top of the pressure block (314) respectively; A short column (317) is fixed on the upper surface of the square tube (312), and the short column (317) cooperates with the linkage (32).

9. The injection mold with cooling and molding function as described in claim 8, characterized in that: The linkage (32) includes a fixed frame (321) fixed to the top of the moving plate (17), and rotating columns one (322) and two rotating columns (323) are respectively rotatable on the fixed frame (321). An inclined plate (324) is fixedly sleeved in the middle of the rotating column (322); Both ends of the rotating column one (322) are fixedly fitted with gear three (325), and both ends of the rotating column two (323) are fixedly fitted with gear four (326), and gear three (325) meshes with gear four (326); A connecting plate (327) is fixed on one side of the gear four (326), and a guide hole (328) is provided at one end of the connecting plate (327). The short column (317) slides within the guide hole (328).

10. The injection mold with cooling and molding function as described in claim 9, characterized in that: The striking element (33) includes a slider (331) that slides on the frame (311), and a toothed plate (332) is fixed at one end of the slider (331). A round rod (333) rotates on the frame (311), and a spring rod (334) is fixed at one end of the round rod (333), and a rubber ball (335) is fixed at one end of the spring rod (334). Gear 5 (336) is fixedly sleeved on the surface of the round rod (333), and gear 5 (336) meshes with the toothed plate (332).

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