Injection molding machine capable of rapid mold reversal

Abstract

The present invention belongs to the field of injection molding technology, specifically, an injection molding machine capable of rapid mold pouring, comprising a rapid mold pouring device, the rapid mold pouring device comprising a workbench, a tripod fixedly connected to the bottom of the workbench, an inner cavity opened inside the workbench, a guide column fixedly connected to the side wall of the inner cavity of the workbench, and the molding quality of the product can be improved by improving the accuracy of the mold feed port and the nozzle in the injection mechanism being kept on the same horizontal line. At the same time, by lifting the steering frame to rotate, the centering calibration mechanism can be driven to leave the surface of the electromagnetic suction plate, thereby avoiding the shaking of the mold when changing the mold, which leads to damage to the centering calibration mechanism, thereby improving the calibration effect of the next mold replacement, and secondly, the small water droplets on the top of the bottom mold can be cleaned by a scraper, thereby avoiding the situation where water vapor accumulates on the top of the mold and causes damage to the mold, further reducing the frequency of mold replacement by the enterprise, and further reducing the production cost of the enterprise.

Description

Technical Field

[0001] The invention belongs to the technical field of injection molding equipment, in particular to an injection molding machine capable of rapid mold reversal. Background Art

[0002] The core feature of an injection molding machine that can quickly reverse the mold is that it can quickly and accurately complete the mold replacement, thereby improving production efficiency and flexibility. This type of injection molding machine usually uses an advanced quick mold change system, such as a magnetic template or an electric permanent magnetic suction cup, to achieve rapid adsorption and release of the mold.

[0003] In the prior art, when replacing a large mold, a tripod is usually used to hoist the mold between two sets of electromagnetic suction plates, and one side of the mold is pressed against one set of electromagnetic suction plates. At this time, the two sets of electromagnetic suction plates are magnetized by turning on the power switch to complete the positioning and fixation of the mold. At the same time, in some injection molding machines with a liquid cooling system, the liquid plastic will simultaneously transfer the temperature it carries to the mold surface when it enters the mold. At this time, the hot air will condense due to the influence of the liquid cooling system, and the condensed small water droplets will adhere to the mold surface. Since the mold surface has good hydrophobic properties, the small water droplets attached to the side of the mold will fall off, thereby reducing the impact of the small water droplets on the mold surface.

[0004] There are still some problems in the actual application of the above scheme. In the actual working process, since the mold is loaded with materials through a tripod and then positioned by two sets of electromagnetic suction plates, inaccurate positioning may occur. Inaccurate positioning will cause the feed port of the mold to be unable to remain on the same horizontal line as the nozzle, which will cause the molten plastic to be unable to be evenly and accurately filled into every corner of the mold, resulting in deviations in the size of the finished product. At the same time, when the mold is replaced, the added centering calibration device will lose its magnetism after the power is turned off because the two sets of magnetic suction plates will lose their magnetism. At this time, the mold will shake, and the shaking of the mold will cause damage to the centering calibration mechanism, which will affect the next centering effect. Secondly, in an injection molding machine equipped with a liquid cooling system, the water droplets on the top of the mold cannot flow away, so they will accumulate on the top of the mold, which will damage the mold, thereby increasing the company's production costs.

[0005] To this end, the present invention provides an injection molding machine capable of rapid mold reversal. Summary of the invention

[0006] In order to make up for the deficiencies of the prior art, at least one technical problem raised in the background technology is solved.

[0007] The technical solution adopted by the present invention to solve its technical problem is: the injection molding machine capable of rapid mold reverse molding described in the present invention comprises a rapid mold reverse molding device, the rapid mold reverse molding device comprises a workbench, a tripod is fixedly connected to the bottom of the workbench, an inner cavity is provided inside the workbench, a guide column is fixedly connected to the side wall of the inner cavity of the workbench, a reciprocating bottom plate is slidably connected to the outer surface of the guide column, an electromagnetic suction plate is fixedly connected to the side of the reciprocating bottom plate, an injection mechanism is fixedly connected to the upper surface of the workbench, and the molten plastic is injected into the mold through the injection mechanism, a liquid cooling device is fixedly connected to the side of the reciprocating bottom plate away from the electromagnetic suction plate, and the working mold is cooled by the liquid cooling device, the mold is magnetically attracted to the side of the electromagnetic suction plate away from the reciprocating bottom plate, a liquid cooling pipe is provided inside the mold, the liquid cooling device is connected to the liquid cooling pipe through a pipe, and a centering calibration mechanism is arranged on the side of the reciprocating bottom plate;

[0008] The centering and calibration mechanism is used to calibrate the mold.

[0009] Preferably, the centering and calibration mechanism includes a second protective shell, an inner cavity is opened inside the second protective shell, a first rotating gear is rotatably connected to the side wall of the inner cavity of the second protective shell, a transmission chain is meshed with teeth on the outer annular surface of the first rotating gear, a second rotating gear is meshed on the side of the transmission chain away from the first rotating gear, and the second rotating gear is rotatably connected to the side wall of the inner cavity opened in the second protective shell.

[0010] Preferably, a limiting column is fixedly connected to the middle of the transmission chain, a limiting movable frame is arranged on the outer ring surface of the limiting column, a limiting groove is provided inside the limiting movable frame, and the limiting column is slidably connected in a guide groove provided inside the limiting movable frame.

[0011] Preferably, a centering rod is fixedly connected to the middle of the limit moving frame, a guide groove is provided in the middle of one side of the centering rod, a cavity is also provided in the side wall of the second protective shell, and a guide block is fixedly connected to the side wall of the cavity provided in the side wall of the second protective shell, and the centering rod slides in the cavity provided in the side wall of the second protective shell along the guide of the guide block.

[0012] Preferably, the centering and calibration mechanism also includes a first protective shell, which is fixedly connected to the side wall of the reciprocating bottom plate, an inner cavity is opened inside the first protective shell, a fixed block is fixedly connected to the side wall of the inner cavity of the first protective shell, a first guide groove of a reciprocating plate is opened through the middle of the fixed block, the first guide groove of the reciprocating plate is composed of an arc groove and a vertical groove, a first rotating shaft is rotatably connected to one side of the fixed block, one end of the first rotating shaft is fixedly connected to a first connecting rod, an end of the first connecting rod away from the first rotating shaft is rotatably connected to a second connecting rod, and an end of the second connecting rod away from the first connecting rod is rotatably connected to a connecting column.

[0013] Preferably, one end of the connecting column is fixedly connected to a lifting and steering frame, the connecting column is slidably connected in the first guide groove of the reciprocating moving plate, and the second protective shell is fixedly connected to a side of the lifting and steering frame away from the connecting column.

[0014] Preferably, a first fixed column is fixedly connected to the middle of the lifting steering frame, a rotating sleeve is rotatably connected to the outer ring surface of the first fixed column, and the rotating sleeve is slidably connected in the first guide groove of the reciprocating plate.

[0015] Preferably, the side wall of the workbench is provided with a reciprocating cleaning mechanism for scraping off accumulated water, and the reciprocating cleaning mechanism includes an external motor, and the output shaft of the external motor is fixedly connected to the second rotating shaft.

[0016] Preferably, a second guide groove is formed on the outer annular surface in the middle of the second rotating shaft, a sliding block is slidably connected in the second guide groove, a second fixed column is arranged in the middle of the sliding block, and the sliding block is rotatably connected to the bottom of the second fixed column.

[0017] Preferably, one end of the second fixed column away from the sliding block is fixedly connected to the reciprocating block, and the bottom of the reciprocating block is fixedly connected to a scraper.

[0018] The beneficial effects of the present invention are as follows:

[0019] 1. The invention relates to an injection molding machine capable of rapid mold reversal. When the mold is placed between the two sets of electromagnetic suction plates by stretching the tripod, the mold will fit with the side walls of one set of electromagnetic suction plates. At this time, the start of the external motor can drive the first rotating gear to rotate, and at the same time drive the transmission chain meshing with it to transmit the power. During the transmission process, the limit column fixed on the transmission chain will be driven to move synchronously. At this time, since the limit column slides inside the limit moving frame, the limit moving frame and the centering rod fixed in the middle of the limit moving frame will also be driven to move linearly along the guide block. Since the centering calibration mechanism is provided with two groups about the central axis of the electromagnetic suction plate, when the two groups of guide blocks move toward each other, the accuracy of keeping the mold feed port and the nozzle in the injection mechanism on the same horizontal line can be improved, ensuring that the plastic melt can flow smoothly into the mold cavity, reducing the resistance and eddy current loss of the melt during the flow process, thereby improving the molding quality of the product.

[0020] 2. The invention relates to an injection molding machine capable of rapid mold reversal. When the mold needs to be replaced, the motor whose output shaft is fixedly connected to the first rotating shaft is started. At this time, the first connecting rod is driven to rotate by the first rotating shaft. While the first connecting rod rotates, the connecting column rotatably connected to the second connecting rod slides along the vertical groove in the first guide groove of the reciprocating plate, thereby driving the lifting steering frame, the first fixed column and the rotating sleeve to slide. When the connecting column slides to the intersection of the vertical groove and the arc groove of the first guide groove of the reciprocating plate, the first fixed column and the rotating sleeve slide to the reciprocating plate. The top of the vertical groove of the first guide groove of the moving plate, at this time, the connecting column will be sent into the arc groove of the first guide groove of the reciprocating moving plate through the rotation of the first fixed column. Since the lifting steering frame and the connecting column are fixedly connected, the lifting steering frame will rotate, and at the same time, it will drive the second protective shell, the first rotating gear, the transmission chain, the limit column, the limit moving frame, the centering rod, the guide block and the second rotating gear to rotate, so that the centering calibration mechanism leaves the surface of the electromagnetic suction plate, thereby avoiding the shaking of the mold when changing the mold and causing damage to the centering calibration mechanism, thereby improving the calibration effect of the next mold replacement.

[0021] 3. The invention relates to an injection molding machine capable of rapid mold reversal. When the device is working, the external motor is started, and the second rotating shaft fixedly connected to the output shaft of the external motor will rotate. Since a second guide groove is provided on the outer ring surface in the middle of the second rotating shaft, the second guide groove will also rotate synchronously, and the sliding block sliding in the second guide groove will drive the second fixed column and the reciprocating block to perform reciprocating motion. At the same time, the scraper fixedly connected to the bottom of the reciprocating block will clean the small water droplets on the top of the mold at the bottom to avoid the situation where water vapor accumulates on the top of the mold and causes damage to the mold, which can further reduce the frequency of mold replacement and further reduce the production cost of the enterprise. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] The present invention will be further described below in conjunction with the accompanying drawings.

[0023] Figure 1 It is a schematic diagram of the overall structure of a preferred embodiment of the present invention;

[0024] Figure 2 It is a schematic structural diagram of the position relationship between the liquid cooling device and the mold shown in the present invention;

[0025] Figure 3 It is a schematic structural diagram of the position relationship between the mold and the centering rod shown in the present invention;

[0026] Figure 4 is a schematic diagram of the cross-sectional structure of the second protective shell shown in the present invention;

[0027] Figure 5 The present invention shows Figure 4 The enlarged structural diagram at A in the middle;

[0028] Figure 6 is a schematic diagram of the cross-sectional structure of the first protective shell shown in the present invention;

[0029] Figure 7 The present invention shows Figure 6 The enlarged structural diagram at B in the middle;

[0030] Figure 8 It is a schematic structural diagram of the positional relationship between the workbench and the second rotating shaft shown in the present invention;

[0031] Fig. 9 The present invention shows Figure 8 The enlarged structural diagram at C in the middle;

[0032] In the figure: 1. Rapid mold-turning device; 101. Workbench; 102. Tripod; 103. Guide column; 104. Reciprocating bottom plate; 105. Electromagnetic suction plate; 106. Injection mechanism; 107. Liquid cooling device; 108. Mold; 109. Liquid cooling pipeline;

[0033] 2. Centering and calibration mechanism; 201. First protective shell; 202. Fixed block; 203. First guide groove of reciprocating plate; 204. First rotating shaft; 205. First connecting rod; 206. Second connecting rod; 207. Connecting column; 208. Lifting steering frame; 209. First fixed column; 210. Rotating sleeve; 211. Second protective shell; 212. First rotating gear; 213. Transmission chain; 214. Limiting column; 215. Limiting moving frame; 216. Centering rod; 217. Guide block; 218. Second rotating gear;

[0034] 3. Reciprocating cleaning mechanism; 301. External motor; 302. Second rotating shaft; 303. Second guide groove; 304. Sliding block; 305. Second fixed column; 306. Reciprocating moving block; 307. Scraper. DETAILED DESCRIPTION

[0035] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further explained below in conjunction with specific implementation methods. Embodiment 1

[0036] like Figures 1 to 9As shown, an injection molding machine capable of rapid mold reversal according to an embodiment of the present invention comprises a rapid mold reversal device 1, wherein the rapid mold reversal device 1 comprises a workbench 101, a tripod 102 is fixedly connected to the bottom of the workbench 101, an inner cavity is provided inside the workbench 101, a guide column 103 is fixedly connected to the side wall of the inner cavity of the workbench 101, a reciprocating bottom plate 104 is slidably connected to the outer surface of the guide column 103, an electromagnetic suction plate 105 is fixedly connected to the side of the reciprocating bottom plate 104, and an injection mechanism 106 is fixedly connected to the upper surface of the workbench 101 , the molten plastic is injected into the mold 108 through the injection mechanism 106, the side of the reciprocating bottom plate 104 away from the electromagnetic suction plate 105 is fixedly connected with a liquid cooling device 107, and the working mold 108 is cooled by the liquid cooling device 107, the side of the electromagnetic suction plate 105 away from the reciprocating bottom plate 104 is magnetically attracted with the mold 108, a liquid cooling pipe 109 is opened inside the mold 108, and the liquid cooling device 107 is connected to the liquid cooling pipe 109 through a pipe, and a centering calibration mechanism 2 is provided on the side of the reciprocating bottom plate 104;

[0037] The centering and calibration mechanism 2 is used to calibrate the mold 108 .

[0038] Specifically, in the actual working process, since the mold 108 is loaded by a tripod and then positioned by two sets of electromagnetic suction plates 105, inaccurate positioning may occur, and inaccurate positioning may cause the feed port of the mold 108 to be unable to be kept on the same horizontal line with the nozzle, thereby causing the molten plastic to be unable to be uniformly and accurately filled into every corner of the mold 108, resulting in deviation in the size of the finished product;

[0039] Therefore, the present invention solves this problem by setting a corresponding structure. In the injection molding machine capable of rapid mold reversal described in the present invention, when the mold 108 needs to be replaced, the mold 108 is lifted and rotated between the two sets of electromagnetic suction plates 105 by starting the tripod 102, and at the same time, the side of the mold 108 without the runner is made to fit with the surface of a set of electromagnetic suction plates 105 by the lifting and rotation of the tripod 102, and then the two sets of electromagnetic suction plates 105 are energized to make the electromagnetic suction plates 105 magnetic, so that the mold can be further replaced. 108 is adsorbed on the surface of a set of electromagnetic suction plates 105. At this time, driven by the existing driving rod, the reciprocating base plate 104 will drive the electromagnetic suction plates 105 and the liquid cooling device 107 fixedly connected thereto to move closer to the other set of electromagnetic suction plates 105. When the two sets of electromagnetic suction plates 105 are respectively in contact with the two sides of the mold 108, the reciprocating base plate 104 will continue to push the two sets of electromagnetic suction plates 105 and the mold 108 magnetically attracted between the two sets of electromagnetic suction plates 105 to move along the guide of the guide column 103 toward the injection mechanism 106. , until the runner gate of the mold 108 fits with the nozzle in the injection mechanism 106, the molten plastic will enter the mold 108 through the nozzle, and the liquid cooling device 107 will be turned on at this time. At the same time, the coolant in the liquid cooling device 107 will be transmitted through the pipeline to the liquid cooling pipeline 109 opened in the mold 108, and circulate through the structure of the liquid cooling pipeline 109, so as to achieve the purpose of cooling the mold 108. Since inaccurate positioning may occur when positioning the mold 108 using the tripod 102 and the electromagnetic suction plate 105, the injection mechanism 106 and the liquid cooling device 107 are common injection molding machines on the market, and are prior art. No further description is given here. At this time, the mold 108 can be positioned by starting the centering calibration mechanism 2, and the runner gate of the mold 108 and the nozzle in the injection mechanism 106 can be kept accurate on the same horizontal line, ensuring that the plastic melt can smoothly flow into the mold 108 cavity, reducing the resistance and eddy current loss of the melt during the flow process, thereby improving the molding quality of the product. Embodiment 2

[0040] like Figures 2 to 9 As shown in Comparative Example 1, another embodiment of the present invention is:

[0041] like Figure 4 and Figure 5 As shown, the centering and calibration mechanism 2 of this embodiment includes a second protective shell 211, an inner cavity is opened inside the second protective shell 211, the side wall of the inner cavity of the second protective shell 211 is rotatably connected to the first rotating gear 212, the outer annular surface teeth of the first rotating gear 212 are meshed with a transmission chain 213, the side of the transmission chain 213 away from the first rotating gear 212 is meshed with a second rotating gear 218, and the second rotating gear 218 is rotatably connected to the side wall of the inner cavity opened in the second protective shell 211.

[0042] Specifically, start the motor whose output shaft is fixedly connected to the middle part of the first rotating gear 212. At this time, the first rotating gear 212 will rotate clockwise driven by the motor output shaft, and at the same time, the second rotating gear 218 meshing with the transmission chain 213 will rotate synchronously clockwise through the transmission of the transmission chain 213. At this time, the transmission chain 213 will transmit synchronously, and the subsequent mechanism can facilitate reciprocating motion during the synchronous transmission of the transmission chain 213.

[0043] like Figure 5 As shown, in this embodiment, a limiting column 214 is fixedly connected to the middle of the transmission chain 213, a limiting movable frame 215 is provided on the outer ring surface of the limiting movable frame 214, a limiting groove is provided inside the limiting movable frame 215, and the limiting column 214 is slidably connected in the guide groove provided inside the limiting movable frame 215.

[0044] Specifically, during the transmission process of the transmission chain 213, since the limit column 214 is fixedly connected to the chain link at one end of the transmission chain 213, the limit column 214 will be driven to perform circular motion when the transmission chain 213 is transmitting. At the same time, since the limit column 214 slides in the limit groove provided in the limit moving frame 215, when the limit column 214 moves following the transmission chain 213, it will drive the limit moving frame 215 to perform reciprocating linear motion, thereby providing corresponding power support for subsequent calibration work.

[0045] like Figure 4 As shown, in this embodiment, a centering rod 216 is fixedly connected to the middle part of the limiting movable frame 215, a guide groove is provided in the middle part of one side of the centering rod 216, and a cavity is also provided on the side wall of the second protective shell 211. A guide block 217 is fixedly connected to the side wall of the cavity provided on the side wall of the second protective shell 211, and the centering rod 216 slides in the cavity provided on the side wall of the second protective shell 211 along the guide of the guide block 217.

[0046] Specifically, since the limit movable frame 215 can realize reciprocating linear motion driven by the limit column 214, the centering rod 216 fixedly connected to the middle part of the limit movable frame 215 will perform reciprocating linear motion along the guide block 217 fixedly connected to one side of the cavity opened on the side wall of the second protective shell 211. At this time, since all the mechanisms in the centering calibration mechanism 2 are symmetrically distributed in two groups along the central axis of the electromagnetic suction plate 105, the two groups of guide blocks 217 synchronously make opposite linear motions and move the mold 108 to the middle part of the electromagnetic suction plate 105, so as to maintain the accuracy of the runner gate of the mold 108 and the nozzle in the injection mechanism 106 on the same horizontal line, ensuring that the plastic melt can smoothly flow into the mold 108 cavity, reducing the resistance and eddy current loss of the melt during the flow process, thereby improving the molding quality of the product.

[0047] like Figure 6As shown, the centering and calibration mechanism 2 of this embodiment also includes a first protective shell 201, which is fixedly connected to the side wall of the reciprocating base plate 104, and an inner cavity is opened inside the first protective shell 201. A fixed block 202 is fixedly connected to the side wall of the inner cavity of the first protective shell 201, and a first guide groove 203 for a reciprocating plate is opened through the middle of the fixed block 202. The first guide groove 203 of the reciprocating plate is composed of an arc groove and a vertical groove, and a first rotating shaft 204 is rotatably connected to one side of the fixed block 202, and a first connecting rod 205 is fixedly connected to one end of the first rotating shaft 204, and a second connecting rod 206 is rotatably connected to the end of the first connecting rod 205 away from the first rotating shaft 204, and a connecting column 207 is rotatably connected to the end of the second connecting rod 206 away from the first connecting rod 205.

[0048] Specifically, by starting the motor whose output shaft is fixedly connected to the first rotating shaft 204, the first rotating shaft 204 is driven to rotate counterclockwise. When the first rotating shaft 204 rotates counterclockwise, the first connecting rod 205 fixedly connected to one end of the first rotating shaft 204 is driven to rotate synchronously. However, since the first guide groove 203 of the reciprocating movable plate opened inside the fixed block 202 is composed of a vertical groove and an arc groove, and the first connecting rod 205 and the second connecting rod 206 are rotatably connected by a pin shaft, when the first connecting rod 205 rotates, the second connecting rod 206 will push the connecting column 207 to the side close to the second protective shell 211 under the guidance of the vertical groove of the first guide groove 203 of the reciprocating movable plate. At this time, the push of the second connecting rod 206 will push the connecting column 207 to the intersection of the vertical groove and the arc groove of the first guide groove 203 of the reciprocating movable plate, thereby facilitating the connecting column 207 to slide into the arc groove of the first guide groove 203 of the reciprocating movable plate.

[0049] like Figure 6 As shown, in this embodiment, one end of the connecting column 207 is fixedly connected to a lifting steering frame 208, the connecting column 207 is slidably connected in the first guide groove 203 of the reciprocating moving plate, and the second protective shell 211 is fixedly connected to the side of the lifting steering frame 208 away from the connecting column 207.

[0050] Specifically, since the outer annular surfaces at both ends of the connecting column 207 are fixedly connected to the bottom of the lifting steering frame 208, when the connecting column 207 is pushed by the second connecting rod 206, the lifting steering frame 208 will move away from the first rotating shaft 204 and push the second protective shell 211, the first rotating gear 212, the transmission chain 213, the limit column 214, the limit moving frame 215, the centering rod 216, the guide block 217 and the second rotating gear 218 fixedly connected to the end of the lifting steering frame 208 away from the first rotating shaft 204 to the surface of the electromagnetic suction plate 105, thereby facilitating the steering of the lifting steering frame 208.

[0051] like Figure 7As shown, in this embodiment, a first fixed column 209 is fixedly connected to the middle of the lifting steering frame 208, and a rotating sleeve 210 is rotatably connected to the outer ring surface of the first fixed column 209. The rotating sleeve 210 is slidably connected in the first guide groove 203 of the reciprocating plate.

[0052] Specifically, since the first fixed column 209 is fixedly connected to the middle part of the lifting steering frame 208, and in the initial state, the first fixed column 209 and the rotating sleeve 210 rotatably connected to the top of the first fixed column 209 are at the intersection of the vertical groove and the arc groove of the first guide groove 203 of the reciprocating plate, when the second connecting rod 206 pushes the lifting steering frame 208 to move away from the first rotating shaft 204 through the connecting column 207, the first fixed column 209 and the rotating sleeve 210 will slide to the end of the vertical groove of the first guide groove 203 of the reciprocating plate close to the second protective shell 211, and at the same time, one end of the connecting column 207 will slide to the intersection of the vertical groove and the arc groove of the first guide groove 203 of the reciprocating plate At the intersection of the second connecting rod 206 and the first fixed column 209, the second connecting rod 206 will continue to move, and at the same time, the connecting column 207 will rotate around the first fixed column 209 to slide into the arc groove of the first guide groove 203 of the reciprocating movable plate. At this time, the lifting steering frame 208 will rotate ninety degrees clockwise after ejection, so that the second protective shell 211, the first rotating gear 212, the transmission chain 213, the limiting column 214, the limiting movable frame 215, the centering rod 216, the guide block 217 and the second rotating gear 218 are not on the same horizontal line with the electromagnetic suction plate 105, so as to avoid the shaking of the mold 108 when replacing the mold 108, resulting in damage to the centering calibration mechanism 2, thereby improving the calibration effect of the next mold 108 replacement.

[0053] like Figure 8 As shown, in this embodiment, a reciprocating cleaning mechanism 3 for scraping off accumulated water is disposed on the side wall of the workbench 101 . The reciprocating cleaning mechanism 3 includes an external motor 301 , and the output shaft of the external motor 301 is fixedly connected to a second rotating shaft 302 .

[0054] Specifically, when a large number of water droplets are found on the top of the mold 108, the external motor 301 is started, and the second rotating shaft 302 fixedly connected to the output shaft of the external motor 301 will rotate synchronously. The second rotating shaft 302 can provide guidance for subsequent work during the rotation process.

[0055] like Fig. 9 As shown, in this embodiment, a second guide groove 303 is formed on the outer ring surface of the middle part of the second rotating shaft 302 , and a sliding block 304 is slidably connected in the second guide groove 303 .

[0056] Specifically, since the second guide groove 303 is opened on the middle outer surface of the second rotating shaft 302, the second guide groove 303 will be driven to rotate synchronously when the second rotating shaft 302 rotates. Since the sliding block 304 is slidably connected inside the second guide groove 303, it can provide power support for the subsequent sliding process of the second guide groove 303.

[0057] like Figure 8 and Fig. 9 As shown, in this embodiment, a second fixed column 305 is set in the middle of the sliding block 304, and the sliding block 304 is rotatably connected to the bottom of the second fixed column 305. The end of the second fixed column 305 away from the sliding block 304 is fixedly connected to a reciprocating block 306, and the bottom of the reciprocating block 306 is fixedly connected to a scraper 307.

[0058] Specifically, since the sliding block 304 slides inside the second guide groove 303, the second fixed column 305 rotatably connected to the middle of the sliding block 304 will move synchronously with the sliding block 304, and the reciprocating block 306 fixed on the top of the sliding block 304 will also move synchronously. Since a guide groove is provided on the top of the workbench 101, and a limit block is provided on the top of the reciprocating block 306 that is compatible with the guide groove on the top of the workbench 101, the reciprocating block 306 will make reciprocating linear motion through the limitation of the limit block on its top while the second guide groove 303 rotates. While the reciprocating block 306 makes reciprocating linear motion, it will drive the scraper 307 fixedly connected to the bottom of the reciprocating block 306 to make reciprocating linear motion, thereby avoiding the situation where water vapor accumulates on the top of the mold 108 and causes the mold 108 to be damaged, further reducing the frequency of the enterprise replacing the mold 108, and further reducing the production cost of the enterprise.

[0059] Working principle: start the motor whose output shaft is fixedly connected to the middle of the first rotating gear 212. At this time, the first rotating gear 212 will rotate clockwise driven by the motor output shaft, and at the same time, the second rotating gear 218 meshing with the transmission chain 213 will rotate synchronously clockwise through the transmission of the transmission chain 213. At this time, the transmission chain 213 will transmit synchronously, and the subsequent mechanism can facilitate reciprocating motion during the synchronous transmission of the transmission chain 213.

[0060] During the transmission process of the transmission chain 213, since the limit column 214 is fixedly connected to the chain link at one end of the transmission chain 213, the limit column 214 will be driven to perform circular motion when the transmission chain 213 is transmitting. At the same time, since the limit column 214 slides in the limit groove opened in the limit moving frame 215, when the limit column 214 moves following the transmission chain 213, it will drive the limit moving frame 215 to perform reciprocating linear motion, thereby providing corresponding power support for subsequent calibration work.

[0061] Since the limit moving frame 215 can realize reciprocating linear motion driven by the limit column 214, the centering rod 216 fixedly connected to the middle part of the limit moving frame 215 will perform reciprocating linear motion along the guide block 217 fixedly connected to one side of the cavity opened along the side wall of the second protective shell 211. At this time, since all the mechanisms in the centering calibration mechanism 2 are symmetrically distributed in two groups along the central axis of the electromagnetic suction plate 105, the two groups of guide blocks 217 synchronously make opposite linear motions and move the mold 108 to the middle part of the electromagnetic suction plate 105, so as to maintain the accuracy of the runner gate of the mold 108 and the nozzle in the injection mechanism 106 on the same horizontal line, ensuring that the plastic melt can smoothly flow into the mold 108 cavity, reducing the resistance and eddy current loss of the melt during the flow process, thereby improving the molding quality of the product.

[0062] By starting the motor whose output shaft is fixedly connected to the first rotating shaft 204, the first rotating shaft 204 is driven to rotate counterclockwise. When the first rotating shaft 204 rotates counterclockwise, the first connecting rod 205 fixedly connected to one end of the first rotating shaft 204 is driven to rotate synchronously. However, since the first guide groove 203 of the reciprocating movable plate opened inside the fixed block 202 is composed of a vertical groove and an arc groove, and the first connecting rod 205 and the second connecting rod 206 are rotatably connected by a pin shaft, when the first connecting rod 205 rotates, the second connecting rod 206 will push the connecting column 207 to the side close to the second protective shell 211 under the guidance of the vertical groove of the first guide groove 203 of the reciprocating movable plate. At this time, the push of the second connecting rod 206 will push the connecting column 207 to the intersection of the vertical groove and the arc groove of the first guide groove 203 of the reciprocating movable plate, thereby facilitating the connecting column 207 to slide into the arc groove of the first guide groove 203 of the reciprocating movable plate.

[0063] Since the outer annular surfaces at both ends of the connecting column 207 are fixedly connected to the bottom of the lifting steering frame 208, when the connecting column 207 is pushed by the second connecting rod 206, the lifting steering frame 208 will move away from the first rotating shaft 204 and push the second protective shell 211, the first rotating gear 212, the transmission chain 213, the limit column 214, the limit moving frame 215, the centering rod 216, the guide block 217 and the second rotating gear 218 fixedly connected to the end of the lifting steering frame 208 away from the first rotating shaft 204 to the surface of the electromagnetic suction plate 105, thereby facilitating the steering of the lifting steering frame 208.

[0064] Since the first fixed column 209 is fixedly connected to the middle part of the lifting steering frame 208, and in the initial state, the first fixed column 209 and the rotating sleeve 210 rotatably connected to the top of the first fixed column 209 are at the intersection of the vertical groove of the first guide groove 203 of the reciprocating plate and the arc groove, so when the second connecting rod 206 pushes the lifting steering frame 208 to move away from the first rotating shaft 204 through the connecting column 207, the first fixed column 209 and the rotating sleeve 210 will slide to the end of the vertical groove of the first guide groove 203 of the reciprocating plate close to the second protective shell 211, and at the same time, one end of the connecting column 207 will slide to the intersection of the vertical groove of the first guide groove 203 of the reciprocating plate and the arc groove. At this time, the second connecting rod 206 will continue to move, and at the same time, the connecting column 207 will rotate around the first fixed column 209, thereby sliding into the arc groove of the first guide groove 203 of the reciprocating movable plate. At this time, the lifting steering frame 208 will rotate ninety degrees clockwise after ejection, so that the second protective shell 211, the first rotating gear 212, the transmission chain 213, the limit column 214, the limit moving frame 215, the centering rod 216, the guide block 217 and the second rotating gear 218 are not on the same horizontal line with the electromagnetic suction plate 105, thereby avoiding the shaking of the mold 108 when replacing the mold 108, resulting in damage to the centering calibration mechanism 2, thereby improving the calibration effect of the next mold 108 replacement.

[0065] When a large number of water droplets are found on the top of the mold 108, the external motor 301 is started. At this time, the second rotating shaft 302 fixedly connected to the output shaft of the external motor 301 will rotate synchronously. The second rotating shaft 302 can provide guidance for subsequent work during the rotation process.

[0066] Since the second guide groove 303 is opened on the middle outer surface of the second rotating shaft 302, the second guide groove 303 will be driven to rotate synchronously when the second rotating shaft 302 rotates. Since the sliding block 304 is slidably connected inside the second guide groove 303, it can provide power support for the subsequent sliding process in the second guide groove 303.

[0067] When the sliding block 304 slides inside the second guide groove 303, the second fixed column 305 rotatably connected to the middle of the sliding block 304 will move synchronously with the sliding block 304, and the reciprocating block 306 fixed on the top of the sliding block 304 will also move synchronously. Since a guide groove is provided on the top of the workbench 101, and a limit block is provided on the top of the reciprocating block 306 that is compatible with the guide groove on the top of the workbench 101, the reciprocating block 306 will make reciprocating linear motion through the limitation of the limit block on its top while the second guide groove 303 rotates. When the reciprocating block 306 makes reciprocating linear motion, it will drive the scraper 307 fixedly connected to the bottom of the reciprocating block 306 to make reciprocating linear motion, thereby avoiding the situation where water vapor accumulates on the top of the mold 108 and causes the mold 108 to be damaged, further reducing the frequency of replacing the mold 108 by the enterprise, and further reducing the production cost of the enterprise.

[0068] The above shows and describes the basic principles, main features and advantages of the present invention. It should be understood by those skilled in the art that the present invention is not limited to the above embodiments. The above embodiments and descriptions are only for explaining the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. An injection molding machine capable of rapid mold reversal, characterized in that: The invention comprises a rapid mold-turning device (1), wherein the rapid mold-turning device (1) comprises a workbench (101), the bottom of the workbench (101) is fixedly connected to a tripod (102), an inner cavity is provided inside the workbench (101), a guide column (103) is fixedly connected to the side wall of the inner cavity of the workbench (101), a reciprocating bottom plate (104) is slidably connected to the outer surface of the guide column (103), an electromagnetic suction plate (105) is fixedly connected to the side of the reciprocating bottom plate (104), and an injection mechanism (106) is fixedly connected to the upper surface of the workbench (101), and a The molten plastic is injected into the mold (108); a liquid cooling device (107) is fixedly connected to a side of the reciprocating bottom plate (104) away from the electromagnetic suction plate (105); the working mold (108) is cooled by the liquid cooling device (107); the mold (108) is magnetically attracted to a side of the electromagnetic suction plate (105) away from the reciprocating bottom plate (104); a liquid cooling pipe (109) is provided inside the mold (108); the liquid cooling device (107) is connected to the liquid cooling pipe (109) via a pipe; and a centering calibration mechanism (2) is provided on the side of the reciprocating bottom plate (104); The centering and calibration mechanism (2) is used to calibrate the mold (108); The centering calibration mechanism (2) comprises a second protective shell (211), an inner cavity is provided inside the second protective shell (211), a first rotating gear (212) is rotatably connected to a side wall of the inner cavity of the second protective shell (211), a transmission chain (213) is meshed with teeth on an outer annular surface of the first rotating gear (212), a second rotating gear (218) is meshed on a side of the transmission chain (213) away from the first rotating gear (212), and the second rotating gear (218) is rotatably connected to a side wall of the inner cavity provided in the second protective shell (211); The middle part of the transmission chain (213) is fixedly connected to a limit post (214); the outer ring surface of the limit post (214) is provided with a limit moving frame (215); a limit slot is provided inside the limit moving frame (215); and the limit post (214) is slidably connected in a guide slot provided inside the limit moving frame (215); A centering rod (216) is fixedly connected to the middle of the limit moving frame (215), a guide groove is provided in the middle of one side of the centering rod (216), a cavity is also provided on the side wall of the second protective shell (211), a guide block (217) is fixedly connected to the side wall of the cavity provided on the side wall of the second protective shell (211), and the centering rod (216) slides in the cavity provided on the side wall of the second protective shell (211) along the guide of the guide block (217); The centering calibration mechanism (2) further comprises a first protective shell (201), wherein the first protective shell (201) is fixedly connected to the side wall of the reciprocating bottom plate (104), an inner cavity is provided inside the first protective shell (201), a fixed block (202) is fixedly connected to the inner cavity side wall of the first protective shell (201), a first guide groove (203) of a reciprocating plate is provided through the middle of the fixed block (202), the first guide groove (203) of the reciprocating plate is composed of an arc groove and a vertical groove, a first rotating shaft (204) is rotatably connected to one side of the fixed block (202), one end of the first rotating shaft (204) is fixedly connected to a first connecting rod (205), an end of the first connecting rod (205) away from the first rotating shaft (204) is rotatably connected to a second connecting rod (206), and an end of the second connecting rod (206) away from the first connecting rod (205) is rotatably connected to a connecting column (207); One end of the connecting column (207) is fixedly connected to a lifting and steering frame (208); the connecting column (207) is slidably connected in the first guide groove (203) of the reciprocating plate; and the second protective shell (211) is fixedly connected to a side of the lifting and steering frame (208) away from the connecting column (207); A first fixed column (209) is fixedly connected to the middle of the lifting steering frame (208), and a rotating sleeve (210) is rotatably connected to the outer ring surface of the first fixed column (209), and the rotating sleeve (210) is slidably connected in the first guide groove (203) of the reciprocating plate.

2. The rapid mold-reversing injection molding machine according to claim 1, characterized in that: The side wall of the workbench (101) is provided with a reciprocating cleaning mechanism (3) for scraping off accumulated water, the reciprocating cleaning mechanism (3) comprising an external motor (301), the output shaft of the external motor (301) being fixedly connected to a second rotating shaft (302).

3. The rapid mold-reversing injection molding machine according to claim 2, characterized in that: A second guide groove (303) is provided on the outer ring surface in the middle of the second rotating shaft (302), a sliding block (304) is slidably connected in the second guide groove (303), a second fixed column (305) is provided in the middle of the sliding block (304), and the sliding block (304) is rotatably connected to the bottom of the second fixed column (305).

4. The rapid mold-reversing injection molding machine according to claim 3, characterized in that: One end of the second fixed column (305) away from the sliding block (304) is fixedly connected to a reciprocating block (306), and a scraper (307) is fixedly connected to the bottom of the reciprocating block (306).

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