Rapid mold changing mechanism for injection molding machining and injection molding machine thereof

Abstract

The invention relates to the technical field of mold changing of injection molding machines, in particular to a rapid mold changing mechanism for injection molding machining and an injection molding machine thereof, and solves the problems that when an injection molding machine mold changing mechanism is used, a new mold can be installed only after an old mold is taken down and placed well, operation is inconvenient, mold positioning is generally not achieved when the mold is installed, and the mold changing efficiency is high. The injection molding machine comprises an injection molding machine mechanism, and two injection molding mold structures are arranged in the injection molding machine mechanism. Mechanical locking of the mold body is achieved by clamping the limiting insertion rods into the limiting grooves, meanwhile, the electromagnet is powered on, a magnetic conductive plate of the mold body is electromagnetically attracted through the electromagnet, electromagnetic locking of the mold body is achieved, the stability of the mold body is improved, and the service life of the mold body is prolonged. And the situation that the mold body is not mounted in place to cause mold slot positions during mold replacement is avoided.

Description

A quick mold change mechanism for injection molding and its injection molding machine Technical Field

[0001] This invention relates to the field of injection molding machine mold changing technology, specifically to a rapid mold changing mechanism for injection molding and an injection molding machine thereof. Background Technology

[0002] An injection molding machine is a device that forms plastic products of various shapes by injecting thermoplastic or thermosetting plastics into a mold.

[0003] Injection molding machines can produce different products by changing different molds during use.

[0004] Existing mold changing mechanisms for injection molding machines typically require the old mold to be removed and placed before the new mold can be installed. This is inconvenient, and mold positioning is usually lacking during installation, making it easy for the front and back molds to misalign. Furthermore, the front and back molds are placed together after being changed, making them difficult to distinguish. Therefore, these mechanisms do not meet current requirements. To address this, we propose a rapid mold changing mechanism for injection molding and an injection molding machine thereof. Summary of the Invention

[0005] The purpose of this invention is to provide a quick mold change mechanism for injection molding and an injection molding machine thereof, so as to solve the problems mentioned in the background art, such as the inconvenience of using the old mold to remove and place the old mold before the new mold can be installed, the lack of mold positioning during mold installation, the easy misalignment between the front and back molds, and the difficulty in distinguishing between the front and back molds after they are removed and placed together.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a quick mold changing mechanism for injection molding and an injection molding machine thereof, comprising an injection molding machine mechanism, wherein the injection molding machine mechanism has two injection mold structures inside, a mold changing mechanism is provided on the outside of the injection molding machine mechanism, mold storage cabinets are provided on both sides of the mold changing mechanism, and the surface of the mold storage cabinets is provided with multiple mold storage cavities, and a linkage mechanism is provided at both ends of the mold changing mechanism;

[0007] The mold changing mechanism includes a movable seat, a rotary table, an electric telescopic cylinder, a rack storage groove, a gear mounting cavity, a driven gear, a second lead screw, a locking rod, a threaded groove, and a locking hole. The outer side of the injection molding machine mechanism has a movable seat, and a rotary table is rotatably mounted on the top of the movable seat. Two electric telescopic cylinders with opposite output directions are fixedly mounted on the top of the rotary table. Both sides of the movable seat have rack storage grooves. Gear mounting cavities are located inside the movable seat near the rack storage grooves. Driven gears are rotatably mounted inside each gear mounting cavity. A second lead screw is fixedly connected to the top of each driven gear. A locking rod is located at the top of each second lead screw. A threaded groove is located at the bottom of each locking rod, and the locking rod is threadedly connected to the second lead screw through the threaded groove. The surface of the rotary table has two locking holes, and the locking rods are movably inserted into the locking holes.

[0008] The linkage mechanism includes an adjusting block, a mold adsorption plate, a rack connecting rod, and a rack. The adjusting block can be detachably installed at the output end of the electric telescopic cylinder. The mold adsorption plate is fixedly installed on both sides of the adjusting block. The rack connecting rod is fixedly installed at the outer end of the adjusting block. The rack is fixedly installed at the bottom end of the rack connecting rod. The rack is movably inserted into the rack storage groove and meshes with the driven gear.

[0009] Preferably, the mold changing mechanism further includes a guide rail frame, a sliding seat, an observation slot, a servo motor, and a rotating shaft. Two sliding seats are fixedly installed at the bottom of the movable seat, and two guide rail frames are provided at the bottom of the movable seat. The sliding seats are slidably installed on the surface of the guide rail frames. Observation slots are provided on both sides of the bottom of the rotary table. The locking rods pass through the interior of the observation slots and are inserted into the interior of the locking holes. A servo motor is provided inside the movable seat. The output end of the servo motor is connected to a rotating shaft through a coupling. The top end of the rotating shaft is fixedly connected to the bottom end of the rotary table.

[0010] Preferably, the linkage mechanism further includes an electric push rod, a clamping plate, a clamping hook, and a lifting groove. Each adjusting block has two electric push rods inside. The output end of each electric push rod is fixedly connected to a clamping plate. Both ends of the clamping plate are fixedly installed with clamping hooks. Each clamping plate extends through the surface of the mold adsorption plate on both sides to the outside of the mold adsorption plate. The surface of the mold adsorption plate near the clamping plate is provided with a lifting groove. Each clamping plate is movably inserted into the interior of the lifting groove.

[0011] Preferably, the injection molding machine mechanism includes a base, an injection platform, an injection tube, a fixed frame, guide rods, a fixed mold platform, and a moving mold platform. The injection platform is provided on one side of the top of the base, and an injection tube is fixedly installed at one end of the injection platform. The fixed frame is provided on the other side of the top of the base. Four guide rods are fixedly installed on the surface of the fixed frame, and a fixed mold platform is fixedly installed at the end of the guide rods. A moving mold platform is slidably installed between the fixed frame and the fixed mold platform. A guide rail is provided between the fixed frame and the fixed mold platform. A T-shaped slider is provided at the bottom of the moving mold platform, and the T-shaped slider slides into the guide rail. Mold mounting grooves are provided on the opposite sides of the fixed mold platform and the moving mold platform.

[0012] Preferably, the injection molding machine mechanism further includes a lead screw motor, a mold table cavity, a first lead screw, a push block, a push ramp, a limit rod, a spring groove, a limit plate, and a compression spring. Two lead screw motors are provided on the side of the fixed mold table and the moving mold table away from the mold mounting slot. The output end of each lead screw motor is connected to the first lead screw via a coupling. A lead screw movable sleeve is threaded onto the outer surface of the first lead screw. A push block is fixedly installed on the surface of the lead screw movable sleeve. A push ramp is provided on one side of the push block. Both the fixed mold table and the moving mold table have two mold table cavities. The first lead screw... All rods are rotatably connected to the inner wall of the mold stage cavity. A limiting rod is movably installed inside the mold stage cavity. The end of the limiting rod near the mold stage cavity is provided with an inclined surface with the same slope as the pushing inclined surface. A limiting plate is fixedly installed on the outer surface of the limiting rod. A spring groove is provided inside the fixed mold stage and the moving mold stage near the limiting rod. The limiting plate is slidably inserted into the inside of the spring groove. A compression spring is movably installed between the limiting plate and the inside of the spring groove. One end of the compression spring is connected to the limiting plate, and the other end of the compression spring is connected to the inner wall of the spring groove.

[0013] Preferably, the injection mold structure includes a mold body, a limiting groove, a mold changing slot, and a clamping groove. The mold body is movably installed inside the mold mounting slot. Limiting grooves are provided on both sides of the mold body. Two mold changing slots are provided on the outer side of the mold body. Clamping grooves are provided inside each mold changing slot.

[0014] Preferably, the injection tube extends through the outer side of the fixed mold table to the position of the mold body, and the limiting rods are all movably inserted into the interior of the limiting groove.

[0015] Preferably, both ends of the clamping plate are movably engaged into the mold changing slot, and the clamping hooks are movably engaged into the clamping groove.

[0016] Preferably, each mold mounting slot is equipped with an electromagnet, and the other side of each mold body is equipped with a magnetic plate.

[0017] Preferably, the system includes a quick mold change mechanism for injection molding and a storage tank, which is detachably mounted on the top of the injection molding table.

[0018] Compared with the prior art, the beneficial effects of the present invention are:

[0019] 1. This invention, through the cooperation of the mold mounting slot, mold body, push block, and limiting rod, enables the device to rotate via a lead screw motor during use. This causes the push block on the surface of the lead screw to move towards the limiting rod. At this time, the push inclined surface on the surface of the push block pushes the inclined surface on the surface of the limiting rod, causing the limiting rod to move towards the inside of the mold mounting slot. When the mold body is located inside the mold mounting slot, the limiting rod will be locked into the inside of the limiting slot, thereby achieving mechanical locking of the mold body. Simultaneously, by energizing the electromagnet, the magnetic plate of the mold body is electromagnetically attracted by the electromagnet, achieving electromagnetic locking of the mold body, improving the stability of the mold body, and avoiding the situation where the mold body is not installed in place during mold changing, resulting in mold slot misalignment.

[0020] 2. This invention, through the cooperation of the clamping plate and the clamping hook, allows the device to first push the output end of the electric telescopic cylinder to the position of the mold mounting slot when the mold body needs to be removed. At this time, the moving seat is moved by the guide rail frame and the sliding seat, which drives the electric telescopic cylinder to move to the position of the mold mounting slot. Then, one end of the clamping plate is inserted into the mold replacement slot on the surface of the mold body to be replaced. Subsequently, the clamping plate is moved by the electric push rod, which drives the clamping plate to engage the clamping hook into the inside of the clamping slot, thereby clamping the mold body. Then, the moving seat is moved in the opposite direction, and the output end is retracted by the electric telescopic cylinder, thereby realizing the rapid removal of the mold body.

[0021] 3. This invention utilizes the cooperation of threaded grooves and racks. When the output end of the electric telescopic cylinder is pushed outward, it simultaneously pushes the rack connecting rod and the rack outward. As the rack moves within the rack receiving groove, it drives the driven gear to rotate, which in turn drives the second lead screw to rotate. This causes the locking rod to rise through the threaded groove on the surface of the second lead screw and engage with the locking hole. At this time, the moving seat and the rotary table are locked together by the locking rod, preventing the rotary table from rotating on the surface of the moving seat. Only when the electric telescopic cylinder retracts its output end will the rack engage with the rack receiving groove, causing the driven gear to rotate in the opposite direction. This will lower the locking rod out of the locking hole, releasing the lock between the moving seat and the rotary table, allowing the rotary table to rotate. This prevents the rotary table from rotating during mold changing due to program settings errors or other reasons, which could lead to collisions between the mold body and the injection molding machine mechanism. Attached Figure Description

[0022] Figure 1 is a schematic diagram of the overall structure of the present invention;

[0023] Figure 2 is a top cross-sectional view of the entire invention;

[0024] Figure 3 is a cross-sectional side view of the mold changing mechanism of the present invention;

[0025] Figure 4 is a cross-sectional bottom view of the driven gear position of the present invention;

[0026] Figure 5 is a cross-sectional side view of the position of the adjusting block of the present invention;

[0027] Figure 6 is a cross-sectional side view of the location of the electric telescopic cylinder of the present invention;

[0028] Figure 7 is a partial structural schematic diagram of part A in Figure 2 of the present invention;

[0029] Figure 8 is a partial structural diagram of part B in Figure 5 of the present invention.

[0030] In the diagram: 1. Injection molding machine mechanism; 101. Base; 102. Injection table; 103. Injection tube; 104. Fixing frame; 105. Guide rod; 106. Fixed mold table; 107. Moving mold table; 108. Mold mounting slot; 109. Lead screw motor; 110. Mold table cavity; 111. First lead screw; 112. Push block; 113. Pushing inclined surface; 114. Limiting rod; 115. Spring groove; 116. Limiting plate; 117. Compression spring; 2. Mold changing mechanism; 201. Moving seat; 202. Rotary table; 203. Electric telescopic cylinder; 204. Guide rail frame; 205. Sliding seat; 206. Observation slot; 207. Servo motor; 208, rotating shaft; 209, rack storage groove; 210, gear mounting cavity; 211, driven gear; 212, second lead screw; 213, locking rod; 214, threaded groove; 215, locking hole; 3, linkage mechanism; 301, adjusting block; 302, mold suction plate; 303, electric push rod; 304, clamping plate; 305, clamping hook; 306, lifting groove; 307, rack connecting rod; 308, rack; 4, storage tank; 5, injection mold structure; 501, mold body; 502, limiting groove; 503, mold changing slot; 504, clamping groove; 6, mold storage cabinet; 7, mold storage cavity. Detailed Implementation

[0031] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments.

[0032] Please refer to Figures 1 to 8. An embodiment of the present invention is provided: a quick mold changing mechanism for injection molding and an injection molding machine thereof, including an injection molding machine mechanism 1. The injection molding machine mechanism 1 has two injection mold structures 5 inside, and a mold changing mechanism 2 is provided on the outside of the injection molding machine mechanism 1. Mold storage cabinets 6 are provided on both sides of the mold changing mechanism 2. The surface of the mold storage cabinets 6 is provided with multiple mold storage cavities 7. A linkage mechanism 3 is provided at both ends of the mold changing mechanism 2.

[0033] The mold changing mechanism 2 includes a movable base 201, a rotary table 202, an electric telescopic cylinder 203, a rack storage groove 209, a gear mounting cavity 210, a driven gear 211, a second lead screw 212, a locking rod 213, a threaded groove 214, and a locking hole 215. The movable base 201 is located on the outer side of the injection molding machine mechanism 1. The rotary table 202 is rotatably mounted on the top of the movable base 201. Two electric telescopic cylinders 203 with opposite output directions are fixedly mounted on the top of the rotary table 202. Both sides of the movable base 201 are provided with rack storage grooves 209. The interior of the movable base 201... A gear mounting cavity 210 is provided near the rack and pinion storage slot 209. A driven gear 211 is rotatably mounted inside the gear mounting cavity 210. A second lead screw 212 is fixedly connected to the top of the driven gear 211. A locking rod 213 is provided at the top of the second lead screw 212. A threaded groove 214 is provided inside the bottom of the locking rod 213. The locking rod 213 is threadedly connected to the second lead screw 212 through the threaded groove 214. Two locking holes 215 are provided on the surface of the rotary table 202. The locking rod 213 is movably inserted into the inside of the locking hole 215.

[0034] The linkage mechanism 3 includes an adjusting block 301, a mold adsorption plate 302, a rack connecting rod 307, and a rack 308. The adjusting block 301 can be detachably installed at the output end of the electric telescopic cylinder 203. The mold adsorption plate 302 is fixedly installed on both sides of the adjusting block 301. The rack connecting rod 307 is fixedly installed at the outer end of the adjusting block 301. The rack 308 is fixedly installed at the bottom end of the rack connecting rod 307. The rack 308 is movably inserted into the rack storage groove 209 and meshes with the driven gear 211.

[0035] Through the cooperation of the threaded groove 214 and the rack 308, when the output end of the electric telescopic cylinder 203 is pushed outward during use, it simultaneously pushes the rack connecting rod 307 and the rack 308 outward. As the rack 308 moves inside the rack receiving groove 209, it drives the driven gear 211 to rotate, which in turn drives the second lead screw 212 to rotate. This causes the locking rod 213 to rise through the threaded groove 214 onto the surface of the second lead screw 212, allowing it to engage inside the locking hole 215. At this time, the moving seat 201 and the rotating table 202 are locked together by the locking rod 213. The rotary table 202 cannot rotate on the surface of the movable seat 201. Only when the electric telescopic cylinder 203 retracts its output end will the rack 308 be inserted into the rack receiving groove 209, thereby driving the driven gear 211 to rotate in the opposite direction. This will cause the locking rod 213 to descend and move out from the locking hole 215, releasing the lock between the movable seat 201 and the rotary table 202. Only then can the rotary table 202 rotate, thus preventing the mold body 501 from colliding with the injection molding machine mechanism 1 when the output end of the electric telescopic cylinder 203 rotates due to incorrect program settings or other reasons during mold changing.

[0036] The mold changing mechanism 2 also includes a guide rail frame 204, a sliding seat 205, an observation slot 206, a servo motor 207, and a rotating shaft 208. Two sliding seats 205 are fixedly installed at the bottom of the movable seat 201. Two guide rail frames 204 are provided at the bottom of the movable seat 201. The sliding seats 205 are slidably installed on the surface of the guide rail frame 204. Observation slots 206 are provided on both sides of the bottom of the rotary table 202. The locking rods 213 pass through the inside of the observation slots 206 and are inserted into the inside of the locking holes 215. The servo motor 207 is provided inside the movable seat 201. The output end of the servo motor 207 is connected to the rotating shaft 208 through a coupling. The top end of the rotating shaft 208 is fixedly connected to the bottom end of the rotary table 202.

[0037] By cooperating with the rotary table 202 and the electric telescopic cylinder 203, when the device needs to change molds, when the mold body 501 to be replaced is removed, the other electric telescopic cylinder 203 can clamp the new mold body 501 located inside the mold storage cavity 7 in the same way. After the electric telescopic cylinder 203 has retracted its output end, the rotary table 202 can be rotated by the rotating shaft 208 driven by the servo motor 207, so that the positions of the two mold bodies 501 are changed. Then, by repeating the clamping operation, the old mold body 501 can be removed and the new mold body 501 can be replaced at the same time.

[0038] The linkage mechanism 3 also includes an electric push rod 303, a clamping plate 304, a clamping hook 305, and a lifting groove 306. The inside of the adjusting block 301 is provided with two electric push rods 303. The output end of the electric push rod 303 is fixedly connected to the clamping plate 304. The two ends of the clamping plate 304 are fixedly installed with clamping hooks 305. The clamping plate 304 extends through the surface of the mold adsorption plate 302 on both sides to the outside of the mold adsorption plate 302. The surface of the mold adsorption plate 302 near the clamping plate 304 is provided with a lifting groove 306. The clamping plate 304 is movably inserted into the inside of the lifting groove 306.

[0039] With the cooperation of the clamping plate 304 and the clamping hook 305, when the mold body 501 needs to be removed, the device can first drive the output end of the electric telescopic cylinder 203 to push it to the position of the mold mounting slot 108. At this time, the moving seat 201 is moved by the guide rail frame 204 and the sliding seat 205, so that the moving seat 201 drives the electric telescopic cylinder 203 to move to the position of the mold mounting slot 108, thereby causing one end of the clamping plate 304 to be inserted into the mold changing slot 503 on the surface of the mold body 501 to be replaced. Then, the clamping plate 304 is driven to move by the electric push rod 303, so that the clamping plate 304 drives the clamping hook 305 to be inserted into the inside of the clamping slot 504, thereby clamping the mold body 501. Then, the moving seat 201 is moved in the opposite direction, and the output end is retracted by the electric telescopic cylinder 203, thereby realizing the quick removal of the mold body 501.

[0040] The injection molding machine mechanism 1 includes a base 101, an injection stage 102, an injection tube 103, a fixed frame 104, guide rods 105, a fixed mold stage 106, and a moving mold stage 107. The injection stage 102 is provided on one side of the top of the base 101, and the injection tube 103 is fixedly installed at one end of the injection stage 102. The fixed frame 104 is provided on the other side of the top of the base 101. Four guide rods 105 are fixedly installed on the surface of the fixed frame 104, and the fixed mold stage 106 is fixedly installed at the end of the guide rods 105. The moving mold stage 107 is slidably installed between the fixed frame 104 and the fixed mold stage 106. A guide rail is provided between the fixed frame 104 and the fixed mold stage 106. A T-shaped slider is provided at the bottom of the moving mold stage 107. The T-shaped slider slides into the guide rail. Mold mounting grooves 108 are provided on the opposite side surfaces of the fixed mold stage 106 and the moving mold stage 107.

[0041] The injection molding machine mechanism 1 also includes a lead screw motor 109, a mold table cavity 110, a first lead screw 111, a push block 112, a push inclined surface 113, a limit rod 114, a spring groove 115, a limit plate 116, and a compression spring 117. Two lead screw motors 109 are provided on the side of the fixed mold table 106 and the moving mold table 107 away from the mold mounting groove 108. The output end of the lead screw motor 109 is connected to the first lead screw 111 via a coupling. A lead screw movable sleeve is threaded onto the outer surface of the first lead screw 111. A push block 112 is fixedly installed on the surface of the lead screw movable sleeve. A push inclined surface 113 is provided on one side of the push block 112. Two mold table cavities 110 are provided inside the fixed mold table 106 and the moving mold table 107. All 111 are rotatably connected to the inner wall of the mold cavity 110. A limiting rod 114 is movably installed inside the mold cavity 110. One end of the limiting rod 114 near the mold cavity 110 is provided with an inclined surface with the same slope as the pushing inclined surface 113. A limiting plate 116 is fixedly installed on the outer surface of the limiting rod 114. A spring groove 115 is provided inside the fixed mold stage 106 and the moving mold stage 107 near the limiting rod 114. The limiting plate 116 is slidably inserted into the inside of the spring groove 115. A compression spring 117 is movably installed between the limiting plate 116 and the inside of the spring groove 115. One end of the compression spring 117 is connected to the limiting plate 116, and the other end of the compression spring 117 is connected to the inner wall of the spring groove 115.

[0042] The injection mold structure 5 includes a mold body 501, a limiting groove 502, a mold changing slot 503, and a clamping groove 504. The mold body 501 is movably installed inside the mold mounting slot 108. The limiting groove 502 is provided on both sides of the mold body 501. Two mold changing slots 503 are provided on the outer side of the mold body 501. The clamping groove 504 is provided inside each mold changing slot 503.

[0043] The injection tube 103 extends through the outside of the fixed mold table 106 to the position of the mold body 501, and the limiting rods 114 are all movable and inserted into the interior of the limiting groove 502.

[0044] Both ends of the clamping plate 304 are movably engaged into the mold changing slot 503, and the clamping hooks 305 are movably engaged into the clamping groove 504.

[0045] Each mold mounting slot 108 is equipped with an electromagnet, and the other side of the mold body 501 is equipped with a magnetic plate.

[0046] Through the cooperation of the mold mounting slot 108, mold body 501, push block 112 and limiting rod 114, the device can be used by driving the first lead screw 111 to rotate via the lead screw motor 109. This causes the first lead screw 111 to move the push block 112 on its surface toward the limiting rod 114. At this time, the push inclined surface 113 on the surface of the push block 112 will push the inclined surface on the surface of the limiting rod 114, thereby causing the limiting rod 114 to move toward the inside of the mold mounting slot 108. When the mold body 501 is located inside the mold mounting slot 108, the limiting rod 114 will be locked into the inside of the limiting slot 502, thereby achieving mechanical locking of the mold body 501. At the same time, by energizing the electromagnet, the magnetic plate of the mold body 501 is electromagnetically attracted by the electromagnet, thereby achieving electromagnetic locking of the mold body 501, improving the stability of the mold body 501, and avoiding the situation where the mold body 501 is not installed in place during mold changing, resulting in mold slot misalignment.

[0047] It includes a quick mold change mechanism for injection molding and a storage tank 4, which is detachably mounted on the top of the injection molding table 102.

[0048] When the injection molding quick mold change mechanism and its injection molding machine are in use, the moving mold table 107 and the fixed mold table 106 can be closed, thereby closing the mold body 501 inside the two mold mounting slots 108, and the injection liquid can be delivered to the injection table 102 and the injection pipe 103 through the storage tank 4, thereby realizing the injection molding process.

[0049] When it is necessary to replace the mold body 501, first move the moving mold table 107 towards the fixed frame 104 to leave a large space between the fixed mold table 106 and the moving mold table 107. Then, drive one of the electric telescopic cylinders 203 on the surface of the rotary table 202 to push the output end to the position of the mold mounting slot 108. At this time, move the moving seat 201 through the guide rail frame 204 and the sliding seat 205, so that the moving seat 201 drives the electric telescopic cylinder 203 to move towards the position of the mold mounting slot 108. Then, one end of the clamping plate 304 is inserted into the mold replacement slot 503 on the surface of the mold body 501 to be replaced. Then, drive the clamping plate 304 to move through the electric push rod 303, so that the clamping plate 304 drives the clamping hook 305 to be inserted into the inside of the clamping slot 504 to clamp the mold body 501. Then, move the moving seat 201 in the opposite direction and retract the output end through the electric telescopic cylinder 203 to achieve quick removal of the mold body 501.

[0050] At the same time, another electric telescopic cylinder 203 simultaneously drives the output end to push out to the position between the mold storage cabinet 6. Then, the moving seat 201 moves in the opposite direction through the guide rail frame 204 and the sliding seat 205, so that the mold adsorption plate 302 clamps the new mold body 501 inside the mold storage cavity 7 through the clamping plate 304 and the clamping hook 305, and then the moving seat 201 returns to its original position. Then, the servo motor 207 drives the rotating shaft 208 to rotate the rotary table 202, so that the positions of the two mold bodies 501 are changed, and the operation of the electric telescopic cylinder 203 is repeated, so that the new mold body 501 is placed into the mold mounting slot 108. Then, the old mold body 501 is put back into the mold storage cavity 7, so that the old mold body 501 can be removed and the new mold body 501 can be installed at the same time, realizing rapid mold change.

[0051] When the output end of the electric telescopic cylinder 203 pushes outward, it simultaneously pushes the rack connecting rod 307 and the rack 308 outward. This causes the rack 308 to move inside the rack receiving groove 209, which in turn drives the driven gear 211 to rotate. The driven gear 211 then drives the second lead screw 212 to rotate, causing the locking rod 213 to rise through the threaded groove 214 onto the surface of the second lead screw 212, thus engaging with the locking hole 215. At this point, the moving seat 201 and the rotating table 202 are locked together by the locking rod 213, preventing the rotating table 202 from being engaged with the moving seat. The surface of 201 rotates. Only when the electric telescopic cylinder 203 retracts its output end will the rack 308 be inserted into the rack receiving groove 209, thereby driving the driven gear 211 to rotate in the opposite direction. This will cause the locking rod 213 to descend and move out from the locking hole 215, releasing the lock between the moving seat 201 and the rotary table 202. Only then can the rotary table 202 rotate, thus preventing the mold body 501 from colliding with the injection molding machine mechanism 1 when the output end of the electric telescopic cylinder 203 rotates due to program setting errors or other situations during mold changing.

[0052] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the invention can be implemented in other specific forms without departing from its spirit or essential characteristics. Therefore, the embodiments should be considered in all respects as exemplary and non-limiting, and the scope of the invention is defined by the appended claims rather than the foregoing description. Thus, all variations falling within the meaning and scope of equivalents of the claims are intended to be included within the present invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A quick mold change mechanism for injection molding, comprising an injection molding machine mechanism (1), characterized in that: The injection molding machine mechanism (1) has two injection mold structures (5) inside, and a mold changing mechanism (2) is provided on the outside of the injection molding machine mechanism (1). Mold storage cabinets (6) are provided on both sides of the mold changing mechanism (2). Multiple mold storage cavities (7) are provided on the surface of each mold storage cabinet (6). Linkage mechanisms (3) are provided at both ends of the mold changing mechanism (2). The mold changing mechanism (2) includes a moving base (201), a rotating table (202), an electric telescopic cylinder (203), a rack storage groove (209), a gear mounting cavity (210), a driven gear (211), and a second lead screw (212). The injection molding machine mechanism (1) includes a locking rod (213), a threaded groove (214), and a locking hole (215). A movable seat (201) is provided on the outer side of the mechanism. A rotary table (202) is rotatably mounted on the top of the movable seat (201). Two electric telescopic cylinders (203) with opposite output directions are fixedly mounted on the top of the rotary table (202). Rack and pinion storage grooves (209) are provided on both sides of the movable seat (201). Gear mounting cavities (210) are provided inside the movable seat (201) near the rack and pinion storage grooves (209). The gear mounting cavities (210) are rotatable. A driven gear (211) is installed, and a second lead screw (212) is fixedly connected to the top of each driven gear (211). A locking rod (213) is provided at the top of each second lead screw (212). A threaded groove (214) is provided inside the bottom of each locking rod (213). The locking rod (213) is threadedly connected to the second lead screw (212) through the threaded groove (214). Two locking holes (215) are provided on the surface of the rotary table (202), and the locking rods (213) are movably inserted into the locking holes (215). The linkage mechanism (3) includes an adjusting block ( 301), mold adsorption plate (302), rack connecting rod (307) and rack (308), the output end of the electric telescopic cylinder (203) can be detachably installed with an adjustment block (301), the mold adsorption plate (302) is fixedly installed on both sides of the adjustment block (301), the rack connecting rod (307) is fixedly installed on the outer end of the adjustment block (301), the rack (308) is fixedly installed on the bottom end of the rack connecting rod (307), and the rack (308) is movably inserted into the rack storage groove (209) and meshed with the driven gear (211).

2. The injection molding quick mold change mechanism according to claim 1, characterized in that: The mold changing mechanism (2) also includes a guide rail frame (204), a sliding seat (205), an observation slot (206), a servo motor (207), and a rotating shaft (208). Two sliding seats (205) are fixedly installed at the bottom of the moving seat (201). Two guide rail frames (204) are provided at the bottom of the moving seat (201). The sliding seats (205) are all slidably installed on the surface of the guide rail frame (204). Observation slots (206) are provided on both sides of the bottom of the rotating table (202). The locking rods (213) all penetrate the inside of the observation slots (206) and are inserted into the inside of the locking holes (215). The servo motor (207) is provided inside the moving seat (201). The output end of the servo motor (207) is connected to the rotating shaft (208) through a coupling. The top end of the rotating shaft (208) is fixedly connected to the bottom end of the rotating table (202).

3. The quick mold change mechanism for injection molding according to claim 2, characterized in that: The linkage mechanism (3) further includes an electric push rod (303), a clamping plate (304), a clamping hook (305), and a lifting groove (306). The inside of the adjusting block (301) is provided with two electric push rods (303). The output end of the electric push rod (303) is fixedly connected to the clamping plate (304). The two ends of the clamping plate (304) are fixedly installed with clamping hooks (305). The clamping plate (304) extends through the surface of the mold adsorption plate (302) on both sides to the outside of the mold adsorption plate (302). The surface of the mold adsorption plate (302) near the clamping plate (304) is provided with a lifting groove (306). The clamping plate (304) is movably inserted into the inside of the lifting groove (306).

4. The injection molding quick mold change mechanism according to claim 3, characterized in that: The injection molding machine mechanism (1) includes a base (101), an injection table (102), an injection tube (103), a fixing frame (104), a guide rod (105), a fixed mold table (106), and a moving mold table (107). The injection table (102) is provided on one side of the top of the base (101), and the injection tube (103) is fixedly installed at one end of the injection table (102). The fixing frame (104) is provided on the other side of the top of the base (101), and four guide rods are fixedly installed on the surface of the fixing frame (104). A guide rod (105) is provided. A fixed mold platform (106) is fixedly installed at the end of the guide rod (105). A movable mold platform (107) is slidably installed between the fixed frame (104) and the fixed mold platform (106). A guide rail is provided between the fixed frame (104) and the fixed mold platform (106). A T-shaped slider is provided at the bottom of the movable mold platform (107). The T-shaped slider slides into the guide rail. Mold mounting grooves (108) are provided on the opposite side surfaces of the fixed mold platform (106) and the movable mold platform (107).

5. The injection molding quick mold change mechanism according to claim 4, characterized in that: The injection molding machine mechanism (1) further includes a lead screw motor (109), a mold table cavity (110), a first lead screw (111), a push block (112), a push inclined surface (113), a limit plug (114), a spring groove (115), a limit plate (116), and a compression spring (117). Two lead screw motors (109) are provided on the side of the fixed mold table (106) and the moving mold table (107) away from the mold mounting groove (108). The output end of the lead screw motor (109) is connected to the first lead screw (111) via a coupling. A lead screw movable sleeve is threaded onto the outer surface of the first lead screw (111). A push block (112) is fixedly installed on the surface of the lead screw movable sleeve. A push inclined surface (113) is provided on one side of the push block (112). Two mold table cavities (110) are provided inside the fixed mold table (106) and the moving mold table (107). The first lead screw... All rods (111) are rotatably connected to the inner wall of the mold stage cavity (110). A limiting rod (114) is movably installed inside the mold stage cavity (110). The end of the limiting rod (114) near the mold stage cavity (110) is provided with an inclined surface with the same slope as the pushing inclined surface (113). A limiting plate (116) is fixedly installed on the outer surface of the limiting rod (114). A spring groove (115) is provided inside the fixed mold stage (106) and the moving mold stage (107) near the limiting rod (114). The limiting plate (116) is slidably inserted into the inside of the spring groove (115). A compression spring (117) is movably installed between the limiting plate (116) and the inside of the spring groove (115). One end of the compression spring (117) is connected to the limiting plate (116), and the other end of the compression spring (117) is connected to the inner wall of the spring groove (115).

6. The injection molding quick mold change mechanism according to claim 5, characterized in that: The injection mold structure (5) includes a mold body (501), a limiting groove (502), a mold changing slot (503), and a clamping groove (504). The mold body (501) is movably installed inside the mold mounting slot (108). The mold body (501) has limiting grooves (502) on both sides. The mold body (501) has two mold changing slots (503) on its outer side. The mold changing slots (503) have clamping grooves (504) inside them.

7. The injection molding quick mold change mechanism according to claim 6, characterized in that: The injection tube (103) extends through the outside of the fixed mold table (106) to the position of the mold body (501), and the limiting rods (114) are all movably inserted into the interior of the limiting groove (502).

8. The quick mold change mechanism for injection molding according to claim 7, characterized in that: Both ends of the clamping plate (304) are movably inserted into the mold changing slot (503), and the clamping hooks (305) are movably inserted into the clamping groove (504).

9. A quick mold change mechanism for injection molding according to claim 8, characterized in that: The mold mounting slot (108) is equipped with an electromagnet inside, and the other side of the mold body (501) is equipped with a magnetic plate.

10. An injection molding machine, characterized in that: The injection molding quick mold change mechanism according to claims 1-9 also includes a storage tank (4), which is detachably mounted on the top of the injection molding table (102).

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