Soft and hard rubber double-color injection molding device

Abstract

The invention relates to the technical field of injection molding processing, in particular to a soft and hard rubber double-color injection molding device which comprises a main machine frame, a heating sleeve horizontally and symmetrically arranged on the rear side of a double-color injection mold, and a double-color injection mold arranged at the front end of the main machine frame, the front end and the rear end of the heating sleeve are each provided with a nesting opening, and the nesting openings are communicated with the heating sleeve. An electric heating wire is arranged in the middle of the heating sleeve in a surrounding manner; the translation guide rails are horizontally and symmetrically arranged on the left side and the right side of the main rack. By arranging the detachable unit charging barrels, the traction connecting frame can pull and drive the unit charging barrels to move synchronously, so that the unit charging barrels are connected with or separated from the double-color injection mold and the heating sleeve and are assembled and disassembled on the traction connecting frame at the same time, and rapid replacement of the unit charging barrels is achieved; the situation that a fixed charging barrel needs to be thoroughly cleaned when raw materials are replaced is avoided, the raw materials can be rapidly replaced according to production requirements, the overall downtime is shortened, and the efficiency of the overall production line is improved.

Description

Technical Field

[0001] The invention relates to the technical field of injection molding, and in particular to a soft and hard rubber two-color injection molding device. Background Art

[0002] With the rapid development of the manufacturing industry and the increasing demand of consumers for product quality, two-color injection molding technology, especially hard and soft glue two-color injection molding, has become a key process for innovative design and improving product competitiveness in many industries. Hard and soft glue two-color injection molding technology allows the structural strength of hard materials and the comfortable feel of soft materials to be integrated into a single product. It is widely used in automotive interiors, consumer electronics, medical equipment and other fields. As an important means to enhance product added value and differentiated design, two-color injection molding technology plays a key role in achieving product diversification. However, traditional two-color injection molding equipment has problems such as long raw material replacement and low production efficiency when facing frequent production switching and small batch orders of multiple varieties.

[0003] Currently, two-color injection molding devices generally use a fixed barrel and screw design. Every time the raw materials are changed, they need to be thoroughly cleaned to avoid contamination from different colors or materials. This process is not only time-consuming and labor-intensive, but also wastes a lot of raw materials and water resources, increasing production costs. In addition, the equipment must stop operating during the cleaning process, which seriously affects the overall efficiency of the production line. Summary of the invention

[0004] In view of this, the purpose of the present invention is to propose a soft and hard plastic two-color injection molding device to solve the problem that the current two-color injection molding device cannot quickly replace raw materials according to production needs, thereby affecting the overall efficiency of the production line.

[0005] Based on the above purpose, the present invention provides a soft and hard plastic two-color injection molding device, including a main frame, a two-color injection mold is installed at the front end of the main frame, and also includes: A heating sleeve is horizontally symmetrically arranged on the rear side of the two-color injection mold, the front and rear ends of the heating sleeve are both provided with nesting openings, and an electric heating wire is arranged around the middle of the heating sleeve; A translation guide rail is horizontally and symmetrically arranged on the left and right sides of the main frame, and a translation traction frame is slidingly connected in the middle of the translation guide rail; A rotating adjustment frame is symmetrically arranged at the rear end of the main frame, a rotating connection ring is connected to the rear side of the rotating adjustment frame, the rotating adjustment frame is rotatably connected to the main frame through the rotating connection ring, a plurality of embedded storage grooves are evenly arranged in a circular shape in the middle of the rotating adjustment frame, and a storage guide rail is horizontally connected to the middle of the embedded storage groove; A unit barrel is slidably arranged on the inner side of the engaging receiving groove, a unit hopper is detachably connected to the top rear side of the unit barrel, a feeding screw is nested and rotatably arranged on the inner side of the unit barrel, a conical injection nozzle is arranged at the front end of the unit barrel, and a conical injection port is symmetrically arranged on the rear side of the two-color injection mold, and the unit barrel is mutually engaged and connected with the two-color injection mold through the conical injection nozzle and the conical injection port; The traction connecting frame is connected to the rear end of the unit barrel, and the unit barrel is slidably connected to the storage guide rail and the translation guide rail through the traction connecting frame. The middle connection of the traction connecting frame is provided with a traction interlocking groove, and the translation traction frame and the traction interlocking groove are matched with each other.

[0006] Furthermore, the inner wall of the heating sleeve is surrounded by a plurality of interlocking connection grooves, and the outer wall of the unit barrel is surrounded by a plurality of interlocking connection blocks. The interlocking connection blocks and the interlocking connection grooves are arranged corresponding to each other and their sizes match each other. When the unit barrel is slidably inserted into the inner side of the heating sleeve through the nested opening, the interlocking connection blocks and the interlocking connection grooves are interlocked and connected with each other.

[0007] Furthermore, an injection channel is provided at the center of the conical injection nozzle, an injection opening is provided at the front end of the injection channel, the rear end of the injection channel is communicated with the interior of the unit barrel, a hollow guide sleeve is provided on the rear side of the injection opening, the hollow guide sleeve is fixedly connected to the unit barrel, a closed ejector rod is nested and slidably provided on the inner side of the hollow guide sleeve, a closed spring is provided on the rear side of the closed ejector rod, the sizes of the closed ejector rod and the injection channel are matched with each other, and the closed spring pushes the closed ejector rod into the injection channel to close the injection opening.

[0008] Furthermore, a liquid conveying channel is provided at the front end of the center of the conical injection port, and an opening push rod is fixedly connected in the middle of the conical injection port. The diameter of the opening push rod is smaller than the inner diameter of the injection channel. When the conical injection nozzle is fully embedded in the conical injection port, the opening push rod pushes the closing push rod to move backward to separate from the injection channel to open the injection opening.

[0009] Furthermore, the rotating adjustment frame drives all the unit barrels carried thereon to rotate. When the unit barrel rotates to the rear of the heating sleeve, the storage guide rail and the translation guide rail are aligned with each other and are located on the same horizontal line, and the traction engagement grooves on the corresponding unit barrels are embedded in the translation traction frame. The translation traction frame drives the unit barrels to move synchronously along the storage guide rail and the translation guide rail through the traction engagement grooves.

[0010] Furthermore, a positioning connection groove is provided at the rear end of the traction connection frame, a locking connection sleeve is provided at the internal connection of the translation guide rail, a locking positioning pin is slidably nested inside the locking connection sleeve, a locking spring is provided on the rear side of the locking positioning pin, and an unlocking electromagnet is provided at the rear end connection of the locking connection sleeve. When the unit barrel is slidably nested into the inner side of the heating sleeve, the conical injection nozzle is completely embedded in the conical injection port, and the positioning connection groove and the locking positioning pin are aligned with each other.

[0011] Furthermore, a central driving shaft is connected to the center of the feeding screw, the rear end of the central driving shaft passes through the rear end of the unit barrel and is connected to a conveying bevel gear, the rear side of the conveying bevel gear is connected to a rotating connecting disk, the rear side of the rotating connecting disk is connected to a pressure sensor, the rear side of the pressure sensor is provided with a buffer spring, and the front and rear ends of the buffer spring are respectively fixedly connected to the pressure sensor and the traction connecting frame.

[0012] Furthermore, a screw servo motor is vertically arranged at the lower rear side of the heating sleeve, and the screw servo motor is fixedly connected to the main frame. A driving sleeve is connected to the shaft end of the screw servo motor, and a driving connecting shaft is slidably nested on the inner side of the driving sleeve, and a driving bevel gear is connected to the shaft end of the driving connecting shaft, and a rotating connecting sleeve is nested and rotatably connected on the upper side of the driving connecting shaft, and a lifting clutch frame is connected to the outer side of the rotating connecting sleeve, and a hydraulic telescopic rod is connected to the outer side of the lifting clutch frame, and the upper and lower ends of the hydraulic telescopic rod are respectively connected to the lifting clutch frame and the main frame, and the hydraulic telescopic rod drives the driving connecting shaft and the driving bevel gear to move up and down synchronously through the lifting clutch frame and the rotating connecting sleeve, so that the driving bevel gear and the conveying bevel gear moved above the driving bevel gear are engaged or separated with each other.

[0013] Furthermore, a hopper adjustment frame is arranged on the upper rear side of the heating sleeve, a central rotating shaft is arranged vertically in the center of the hopper adjustment frame, the hopper adjustment frame is rotatably connected to the main frame through the central rotating shaft, a second adjusting motor is connected to the shaft end of the central rotating shaft, a plurality of unit hoppers are evenly arranged around the middle of the hopper adjustment frame, a vertical feeding pipe is connected to the bottom end of the unit hopper, a feeding interface is arranged at the bottom end of the vertical feeding pipe, a feed connecting pipe is connected to the top rear end of the unit barrel, a feed interface is arranged at the top of the feed connecting pipe, and when the unit barrel is completely slid and nested into the inner side of the heating sleeve, the feed interface is aligned with the feeding interface rotated to the top of the unit barrel.

[0014] Furthermore, a closed sleeve is slidably nested on the outer side of the vertical feeding tube, a magnetic linkage ring is connected and arranged around the outer side of the closed sleeve, a connecting spring is arranged above the magnetic linkage ring, and an annular electromagnet is arranged around the outer side of the upper end of the vertical feeding tube.

[0015] Beneficial effects of the present invention: As can be seen from the above description, a soft and hard rubber two-color injection molding device provided by the present invention, by setting a detachable unit barrel, the unit barrel can slide horizontally to connect or separate with the heating sleeve, and at the same time, it is mutually engaged and connected with the two-color injection mold through a conical injection nozzle and a conical injection port, and the device stores multiple unit barrels at the same time through a rotating adjustment frame, and drives the unit barrel to rotate for adjustment through the rotating adjustment frame, and the traction connecting frame can pull and drive the unit barrel to move synchronously, so that the unit barrel is connected or separated from the two-color injection mold and the heating sleeve, and is loaded and unloaded from the traction connecting frame at the same time, so as to realize the rapid replacement of the unit barrel, avoid the need for thorough cleaning of the fixed barrel when replacing the raw material, and can quickly replace the raw material according to production needs, shorten the overall downtime, and help improve the efficiency of the overall production line. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solutions in the present invention or the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings in the following description are only for the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0017] Figure 1 It is a front structural schematic diagram of an embodiment of the present invention; Figure 2 It is a schematic diagram of a top view of the structure of an embodiment of the present invention; Figure 3 It is a structural schematic diagram of a two-color injection mold according to an embodiment of the present invention; Figure 4 A schematic structural diagram of a main frame according to an embodiment of the present invention; Figure 5 It is a structural schematic diagram of a heating sleeve according to an embodiment of the present invention; Figure 6 It is a structural schematic diagram of a translation guide rail according to an embodiment of the present invention; Figure 7 It is a schematic structural diagram of a unit barrel according to an embodiment of the present invention; Figure 8 It is a schematic diagram of the internal structure of a unit barrel according to an embodiment of the present invention; Fig. 9 This is a schematic diagram of the structure of the driving bevel gear according to an embodiment of the present invention; Fig.10It is a structural schematic diagram of a rotary adjustment frame according to an embodiment of the present invention; Fig.11 It is a structural schematic diagram of a hopper adjustment frame according to an embodiment of the present invention; Fig.12 It is a schematic structural diagram of a unit hopper according to an embodiment of the present invention.

[0018] The markings in the figure are: 1. Main frame; 101. Two-color injection mold; 102. Conical injection port; 103. Opening ejector; 104. Liquid delivery channel; 105. Heating sleeve; 106. Nesting opening; 107. Fitting connection groove; 108. Electric heating wire; 109. Connection socket; 2. Translation guide rail; 201. Translation traction frame; 202. Traction screw sleeve; 203. Horizontal screw; 204. Translation traction motor; 205. Locking connection sleeve; 206. Locking positioning pin; 20 7. Locking spring; 208. Unlocking electromagnet; 3. Screw servo motor; 301. Drive sleeve; 302. Drive connecting shaft; 303. Drive bevel gear; 304. Rotary connecting sleeve; 305. Lifting clutch frame; 306. Hydraulic telescopic rod; 4. Unit barrel; 401. Chiming connection block; 402. Temperature sensor; 403. Feed connection pipe; 404. Feed interface; 405. Traction connection frame; 406. Traction chiming groove; 407. Positioning connection groove; 40 8. Connecting plug; 5. Conical injection nozzle; 501. Injection channel; 502. Injection opening; 503. Hollow guide sleeve; 504. Closed ejector pin; 505. Closed spring; 6. Feeding screw; 601. Central drive shaft; 602. Conveying bevel gear; 603. Rotating connection plate; 604. Pressure sensor; 605. Buffer spring; 7. Rotating adjustment frame; 701. Fitting storage groove; 702. Storage guide rail; 703. Rotating connection ring; 704. Adjusting gear ring; 705, adjusting gear; 706, first adjusting motor; 8, hopper adjusting frame; 801, central rotating shaft; 802, second adjusting motor; 803, unit hopper; 804, feeding motor; 805, stirring drive shaft; 806, rotating stirring frame; 807, fan-shaped closing plate; 9, vertical feeding pipe; 901, fan-shaped conveying port; 902, feeding interface; 903, annular electromagnet; 904, closing sleeve; 905, connecting spring; 906, magnetic linkage ring. DETAILED DESCRIPTION

[0019] In order to make the objectives, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with specific embodiments.

[0020] It should be noted that, unless otherwise defined, the technical terms or scientific terms used in the present invention should be understood by people with ordinary skills in the field to which the present invention belongs. The "first", "second" and similar words used in the present invention do not indicate any order, quantity or importance, but are only used to distinguish different components. "Include" or "comprise" and similar words mean that the elements or objects appearing before the word include the elements or objects listed after the word and their equivalents, without excluding other elements or objects. "Connect" or "connected" and similar words are not limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect. "Up", "down", "left", "right" and the like are only used to indicate relative positional relationships. When the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0021] like Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 , Figure 7 , Figure 8 , Fig. 9 , Fig.10 , Fig.11 and Fig.12 As shown, a soft and hard plastic two-color injection molding device includes a main frame 1, a two-color injection mold 101 is installed at the front end of the main frame 1, and also includes: The heating sleeve 105 is horizontally symmetrically arranged at the rear side of the two-color injection mold 101. The front and rear ends of the heating sleeve 105 are both provided with nesting openings 106. The middle of the heating sleeve 105 is surrounded by an electric heating wire 108. The translation guide rail 2 is horizontally symmetrically arranged on the left and right sides of the main frame 1. A translation traction frame 201 is slidably connected in the middle of the translation guide rail 2. A traction fitting groove 406 is arranged in the middle of the translation traction frame 201. The rotating adjustment frame 7 is symmetrically arranged at the rear end of the main frame 1. A rotating connection ring 703 is connected to the rear side of the rotating adjustment frame 7. The rotating adjustment frame 7 is rotatably connected to the main frame 1 through the rotating connection ring 703. A plurality of embedded storage grooves 701 are evenly arranged in a circular shape in the middle of the rotating adjustment frame 7. A storage guide rail 702 is horizontally connected to the middle of the embedded storage groove 701. The unit barrel 4 is slidably arranged on the inner side of the accommodating receiving groove 701, the top rear side of the unit barrel 4 is detachably connected with a unit hopper 803, the inner side of the unit barrel 4 is nested with a feeding screw 6, the front end of the unit barrel 4 is provided with a conical injection nozzle 5, and the rear side of the two-color injection mold 101 is symmetrically provided with a conical injection port 102, and the unit barrel 4 is mutually accommodatingly connected with the two-color injection mold 101 through the conical injection nozzle 5 and the conical injection port 102; The traction connecting frame 405 is connected to the rear end of the unit barrel 4. The unit barrel 4 is slidably connected to the storage guide rail 702 and the translation guide rail 2 through the traction connecting frame 405. The middle connection of the traction connecting frame 405 is provided with a traction interlocking groove 406. The translation traction frame 201 and the traction interlocking groove 406 are mutually coordinated.

[0022] In this embodiment, the unit barrel 4 of the device is fed through the unit hopper 803 detachably connected and arranged at the rear side of the top. After the raw materials are input into the unit barrel 4, they are heated and melted by the heating sleeve 105, and are conveyed forward by the rotation drive of the feeding screw 6, and then conveyed to the two-color injection mold 101 for injection molding by the tapered injection nozzle 5 and the tapered injection port 102. The unit barrel 4 is an independent and detachable structure. The unit barrel 4 can be connected or separated from the heating sleeve 105 by horizontal sliding. At the same time, when the unit barrel 4 is slidably loaded into the heating sleeve 105, the tapered injection nozzle 5 and the tapered injection port 102 are used to inject the raw materials into the two-color injection mold 101. 102 is interconnected with the two-color injection mold 101, and the device stores multiple unit barrels 4 at the same time through the rotating adjustment frame 7, and drives the unit barrels 4 to rotate for adjustment through the rotating adjustment frame 7, and the outer side of the rotating connection ring 703 is surrounded by an adjustment tooth ring 704, and the outer side of the adjustment tooth ring 704 is meshed with an adjustment gear 705, and the shaft end of the adjustment gear 705 is connected to a first adjustment motor 706, and the first adjustment motor 706 can drive the rotating connection ring 703 to rotate through the adjustment gear 705 and the adjustment tooth ring 704, thereby driving the rotating adjustment frame 7 to rotate, and the rotating adjustment frame 7 drives All the unit barrels 4 carried thereon rotate. When the unit barrel 4 rotates to the rear of the heating sleeve 105, the storage guide rail 702 and the translation guide rail 2 are aligned with each other and are located on the same horizontal line, and the traction fitting groove 406 on the corresponding unit barrel 4 is embedded in the translation traction frame 201, and the outer side of the translation traction frame 201 is connected with a traction screw sleeve 202, and the middle of the traction screw sleeve 202 is nested and connected with a horizontal screw rod 203, and the axial end of the horizontal screw rod 203 is connected with a translation traction motor 204, and the translation traction motor 204 is fixedly connected to the main frame 1, so that the translation traction motor 204 can be moved by The horizontal screw 203 and the traction screw sleeve 202 drive the translational traction frame 201 to move along the translational guide rail 2, and the translational traction frame 201 drives the unit barrel 4 to move synchronously along the storage guide rail 702 and the translational guide rail 2 through the traction engagement groove 406, so that the unit barrel 4 is connected or separated with the two-color injection mold 101 and the heating sleeve 105, and is loaded and unloaded from the traction connecting frame 405 at the same time, so as to realize the rapid replacement of the unit barrel 4, avoid the need for thorough cleaning of the fixed barrel when replacing the raw materials, and can quickly replace the raw materials according to the production needs, shorten the overall downtime, and help improve the efficiency of the overall production line.

[0023] like Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 , Figure 7 , Figure 8 , Fig. 9 , Fig.10 , Fig.11 and Fig.12As shown, preferably, the inner wall of the heating sleeve 105 of the device is surrounded by a plurality of interlocking connection grooves 107, and the outer wall of the unit barrel 4 is surrounded by a plurality of interlocking connection blocks 401. The interlocking connection blocks 401 and the interlocking connection grooves 107 are arranged corresponding to each other and their sizes match each other. When the unit barrel 4 is slidably inserted into the inner side of the heating sleeve 105 through the nesting opening 106, the interlocking connection blocks 401 and the interlocking connection grooves 107 are interlocked and connected with each other, thereby facilitating the improvement of the heat conduction efficiency between the unit barrel 4 and the heating sleeve 105, so as to improve the heating production efficiency, and provide a positioning connection structure to improve the stability of the connection.

[0024] like Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 , Figure 7 , Figure 8 , Fig. 9 , Fig.10 , Fig.11 and Fig.12 As shown, preferably, an injection channel 501 is provided at the center of the conical injection nozzle 5 of the device, an injection opening 502 is provided at the front end of the injection channel 501, the rear end of the injection channel 501 is interconnected with the inside of the unit barrel 4, a hollow guide sleeve 503 is provided on the rear side of the injection opening 502, the hollow guide sleeve 503 is fixedly connected to the unit barrel 4, a closed ejector rod 504 is nested and slidably provided on the inner side of the hollow guide sleeve 503, a closed spring 505 is provided on the rear side of the closed ejector rod 504, the sizes of the closed ejector rod 504 and the injection channel 501 are matched with each other, the closed spring 505 pushes the closed ejector rod 504 to insert into the injection channel 501 to close the injection opening 502, and the center of the conical injection port 102 is provided with a hollow guide sleeve 503, the hollow guide sleeve 503 is fixedly connected to the unit barrel 4, a closed ejector rod 504 is nested and slidably provided on the inner side of the hollow guide sleeve 503, a closed ejector rod 504 is provided on the rear side of the closed ejector rod 504, the sizes of the closed ejector rod 504 and the injection channel 501 are matched with each other, the closed spring 505 pushes the closed ejector rod 504 to insert into the injection channel 501 to close the injection opening 502, and the center of the conical injection port 102 is provided with a hollow guide sleeve 503. A liquid conveying channel 104 is provided at the front end, and an opening push rod 103 is fixedly connected in the middle of the conical injection port 102. The diameter of the opening push rod 103 is smaller than the inner diameter of the injection channel 501. Therefore, when the conical injection nozzle 5 is fully embedded in the conical injection port 102, the opening push rod 103 pushes the closing push rod 504 to move backward to separate from the injection channel 501 to open the injection opening 502, which is convenient for conveying the molten raw material for injection molding processing. When the unit barrel 4 is disassembled, the conical injection nozzle 5 and the conical injection port 102 are separated from each other, and the closing spring 505 pushes the closing push rod 504 to insert into the injection channel 501 to close the injection opening 502, thereby avoiding the molten raw material from being discharged and overflowing when the unit barrel 4 is replaced.

[0025] like Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 , Figure 7 , Figure 8 , Fig. 9 , Fig.10 , Fig.11 and Fig.12 As shown, preferably, the rotating adjustment frame 7 of the device drives all the unit barrels 4 carried thereon to rotate. When the unit barrel 4 rotates to the rear of the heating sleeve 105, the storage guide rail 702 and the translation guide rail 2 are aligned with each other and are located on the same horizontal line, and the traction fitting groove 406 on the corresponding unit barrel 4 is embedded in the translation traction frame 201. The translation traction frame 201 drives the unit barrel 4 to move synchronously along the storage guide rail 702 and the translation guide rail 2 through the traction fitting groove 406, and the rear end of the traction connecting frame 405 is provided with a positioning connecting groove 407, and the internal connection of the translation guide rail 2 is provided with a locking connecting sleeve 205, and the inner side of the locking connecting sleeve 205 is nested and slidably provided with a locking positioning pin 206, and the locking positioning pin 206 is locked. A locking spring 207 is provided on the rear side, and an unlocking electromagnet 208 is provided on the rear end connection of the locking connecting sleeve 205. When the unit barrel 4 slides and nests into the inner side of the heating sleeve 105, the conical injection nozzle 5 is completely embedded in the conical injection port 102, and the positioning connecting groove 407 is aligned with the locking positioning pin 206. At this time, the locking positioning pin 206 can be embedded in the positioning connecting groove 407 to lock the traction connecting frame 405 and the corresponding unit barrel 4. After the unlocking electromagnet 208 is energized, it can attract the magnetic locking positioning pin 206 to move out of the positioning connecting groove 407 to unlock the traction connecting frame 405 and the corresponding unit barrel 4, thereby facilitating the rapid locking and unlocking of the unit barrel 4 and realizing the rapid replacement of the unit barrel 4.

[0026] like Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 , Figure 7 , Figure 8 , Fig. 9 , Fig.10 , Fig.11 and Fig.12As shown, preferably, a central driving shaft 601 is connected to the center of the feeding screw 6 of the device, and the rear end of the central driving shaft 601 passes through the rear end of the unit barrel 4 and is connected to a conveying bevel gear 602. The conveying bevel gear 602 can drive the feeding screw 6 to rotate through the central driving shaft 601 to convey the raw material for injection molding, and a rotating connecting disk 603 is connected to the rear side of the conveying bevel gear 602, and a pressure sensor 604 is connected to the rear side of the rotating connecting disk 603. A buffer spring 605 is provided on the rear side of the pressure sensor 604, and the front and rear ends of the buffer spring 605 are respectively fixedly connected to the pressure sensor 604 and the traction connecting frame 405, so that the feeding screw 6 as a whole can move forward and backward within a certain range to cooperate with The pressure sensor 604 detects the conveying pressure in real time, and a temperature sensor 402 is also provided inside the unit barrel 4, and a connecting plug 408 is connected to the upper side of the traction connecting frame 405, the temperature sensor 402 and the pressure sensor 604 are both electrically connected to the connecting plug 408, and a connecting socket 109 is connected to the upper side of the rear end of the heating sleeve 105, and the connecting plug 408 and the connecting socket 109 are arranged corresponding to each other, so that when the unit barrel 4 is inserted into the heating sleeve 105 to complete the installation, the connecting plug 408 and the connecting socket 109 are also inserted and connected synchronously, thereby facilitating the transmission of data from the pressure sensor 604 and the temperature sensor 402, so as to perform real-time regulation according to needs, and is more flexible and convenient to use.

[0027] like Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 , Figure 7 , Figure 8 , Fig. 9 , Fig.10 , Fig.11 and Fig.12As shown, preferably, a screw servo motor 3 is vertically arranged at the lower rear side of the heating sleeve 105 of the device, the screw servo motor 3 is fixedly connected to the main frame 1, and a driving sleeve 301 is connected to the shaft end of the screw servo motor 3, and a driving connecting shaft 302 is nested and slidably arranged on the inner side of the driving sleeve 301, and a driving bevel gear 303 is connected to the shaft end of the driving connecting shaft 302, so that the screw servo motor 3 can drive the driving bevel gear 303 to rotate through the driving sleeve 301 and the driving connecting shaft 302, and at the same time, a rotating connecting sleeve 304 is nested and rotatably connected to the upper side of the driving connecting shaft 302, and a lifting clutch frame is connected to the outer side of the rotating connecting sleeve 304. 305, a hydraulic telescopic rod 306 is connected to the outer side of the lifting clutch frame 305, and the upper and lower ends of the hydraulic telescopic rod 306 are respectively connected to the lifting clutch frame 305 and the main frame 1. The hydraulic telescopic rod 306 drives the driving connection shaft 302 and the driving bevel gear 303 to move up and down synchronously through the lifting clutch frame 305 and the rotating connecting sleeve 304, so that the driving bevel gear 303 and the conveying bevel gear 602 moved to the top of the driving bevel gear 303 are engaged or separated with each other, thereby realizing the driving of the feeding screw 6 by the screw servo motor 3, and facilitating the control of the position connection of the driving bevel gear 303, so as to facilitate the rapid replacement of the loading and unloading unit barrel 4, which is more flexible and convenient to use.

[0028] like Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 , Figure 7 , Figure 8 , Fig. 9 , Fig.10 , Fig.11 and Fig.12As shown, preferably, a hopper adjustment frame 8 is arranged above the rear side of the heating sleeve 105 of the device, a central rotating shaft 801 is arranged vertically in the center of the hopper adjustment frame 8, the hopper adjustment frame 8 is rotatably connected to the main frame 1 through the central rotating shaft 801, a second adjusting motor 802 is connected to the shaft end of the central rotating shaft 801, a plurality of unit hoppers 803 are evenly arranged around the middle of the hopper adjustment frame 8, a vertical feeding pipe 9 is connected to the bottom end of the unit hopper 803, and a The feeding interface 902, the top rear end of the unit barrel 4 is connected with a feeding connection pipe 403, and the top of the feeding connection pipe 403 is provided with a feeding interface 404. When the unit barrel 4 is completely slid and nested into the inner side of the heating sleeve 105, the feeding interface 404 and the feeding interface 902 rotated to the top of the unit barrel 4 are aligned with each other. At this time, the raw materials in the unit barrel 4 can be transported to the feeding connection pipe 403 through the vertical feeding pipe 9, so that the unit hopper 8 can be quickly adjusted and replaced according to the needs of the unit barrel 4. 03, in order to adjust and replace the injection molding raw materials, at the same time, the outer side of the vertical feeding tube 9 is nested and slidably provided with a closed sleeve 904, the outer side of the closed sleeve 904 is connected and surrounded by a magnetic linkage ring 906, and a connecting spring 905 is arranged above the magnetic linkage ring 906. The upper end of the vertical feeding tube 9 is surrounded by an annular electromagnet 903. Therefore, when the feed interface 404 and the feed interface 902 rotated to the top of the unit barrel 4 are aligned with each other, the annular electromagnet 903 loses power, and the connecting spring 905 can push The movable closed sleeve 904 slides downward to be nested into the outside of the feed connecting tube 403, thereby realizing a closed connection between the feed connecting tube 403 and the vertical feeding tube 9, which is convenient for the transportation of raw materials and avoids unloading of raw materials. At the same time, when separation and adjustment are required, the annular electromagnet 903 is energized to attract the closed sleeve 904 to move upward through the magnetic linkage ring 906, so that the closed sleeve 904 is separated from the feed connecting tube 403, which is convenient for the adjustment and replacement of the unit hopper 803 and the unit barrel 4, and is more flexible and convenient to use.

[0029] like Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 , Figure 7 , Figure 8 , Fig. 9 , Fig.10 , Fig.11 and Fig.12As shown, preferably, a feeding motor 804 is connected to the top of the unit hopper 803 of the device, and a stirring drive shaft 805 is connected to the shaft end of the feeding motor 804. A rotating stirring frame 806 is connected to the outer side of the stirring drive shaft 805, so that the feeding motor 804 can drive the rotating stirring frame 806 to rotate through the stirring drive shaft 805 to stir the raw material particles inside the unit hopper 803, so as to facilitate the smooth transportation of the raw materials, and the lower end of the stirring drive shaft 805 is connected to a fan-shaped closing plate 807, and the feeding interface 902 A fan-shaped conveying port 901 is provided in the middle, and the raw materials are conveyed downward through the fan-shaped conveying port 901, and the fan-shaped conveying port 901 and the fan-shaped closing plate 807 are arranged corresponding to each other, so that the feeding motor 804 can drive the fan-shaped closing plate 807 to rotate through the stirring driving shaft 805, so that the fan-shaped closing plate 807 covers and closes the fan-shaped conveying port 901, or is staggered with the fan-shaped conveying port 901 to open the fan-shaped conveying port 901, so that when the unit hopper 803 and the unit barrel 4 are separated and adjusted, the fan-shaped conveying port 901 can be closed to avoid leakage of raw materials.

[0030] When in use, the unit barrel 4 of the device is fed through the unit hopper 803 detachably connected and arranged on the rear side of the top. After the raw materials are input into the unit barrel 4, they are heated and melted by the heating sleeve 105, and are conveyed forward by the rotation drive of the feeding screw 6, and then conveyed to the two-color injection mold 101 for injection molding by the conical injection nozzle 5 and the conical injection port 102. When the raw materials need to be replaced, the feeding motor 804 can drive the fan-shaped closing plate 807 to rotate through the stirring driving shaft 805, so that the fan-shaped closing plate 807 covers the closed fan-shaped conveying port 901, and at the same time, the annular electromagnet 903 is energized to attract the closing sleeve 904 to move upward through the magnetic linkage ring 906, so that the closing sleeve 904 is connected to the feed The tube 403 is disengaged, and then the second adjusting motor 802 drives the hopper adjusting frame 8 to rotate through the central rotating shaft 801, and the unit hopper 803 loaded with the required raw materials is rotated to the top of the unit barrel 4, and then the unlocking electromagnet 208 is energized to attract the magnetic locking positioning pin 206 to move out of the positioning connection groove 407 to unlock the traction connection frame 405 and the corresponding unit barrel 4, and the hydraulic telescopic rod 306 drives the driving connection shaft 302 and the driving bevel gear 303 to move downward synchronously through the lifting clutch frame 305 and the rotating connecting sleeve 304, so that the driving bevel gear 303 and the conveying bevel gear 602 moved above the driving bevel gear 303 are separated from each other, and the translation traction motor 204 is driven by the horizontal screw 20 3 and the traction screw sleeve 202 drive the translation traction frame 201 to move along the translation guide rail 2, and the translation traction frame 201 drives the unit barrel 4 to move synchronously along the translation guide rail 2 and the storage guide rail 702 through the traction interlocking groove 406, and moves the unit barrel 4 to the vacant interlocking storage groove 701 on the rotation adjustment frame 7, and then the first adjustment motor 706 can drive the rotating connection ring 703 to rotate through the adjustment gear 705 and the adjustment gear ring 704, thereby driving the rotation adjustment frame 7 to rotate, and when the interlocking storage groove 701 storing the required unit barrel 4 is rotated to the rear of the heating sleeve 105, the translation traction frame 201 then drives the unit barrel 4 along the storage guide rail 702 and the translation guide rail 2 through the traction interlocking groove 406. Synchronously move, so that the unit barrel 4 is connected to the two-color injection mold 101 and the heating sleeve 105, then the annular electromagnet 903 loses power, and the connecting spring 905 pushes the closed sleeve 904 to slide downward to nest into the outside of the feed connecting pipe 403, thereby realizing the closed connection between the feed connecting pipe 403 and the vertical feeding pipe 9. Finally, the hydraulic telescopic rod 306 drives the driving connecting shaft 302 and the driving bevel gear 303 to move upward synchronously through the lifting clutch frame 305 and the rotating connecting sleeve 304, so that the driving bevel gear 303 and the conveying bevel gear 602 moved above the driving bevel gear 303 are meshed with each other, thereby completing the rapid replacement of the unit barrel 4 and the unit hopper 803, and realizing the rapid adjustment and replacement of the raw materials.

[0031] The soft and hard rubber two-color injection molding device provided by the present invention is provided with a detachable unit barrel 4. The unit barrel 4 can slide horizontally to connect or separate with the heating sleeve 105, and at the same time, it is mutually engaged and connected with the two-color injection mold 101 through the conical injection nozzle 5 and the conical injection port 102. The device stores multiple unit barrels 4 at the same time through the rotating adjustment frame 7, and drives the unit barrel 4 to rotate for adjustment by rotating the adjustment frame 7. The traction connecting frame 405 can traction and drive the unit barrel 4 to move synchronously, so that the unit barrel 4 is mutually connected or separated with the two-color injection mold 101 and the heating sleeve 105, and is loaded and unloaded from the traction connecting frame 405 at the same time, so as to realize the rapid replacement of the unit barrel 4, avoid the need for thorough cleaning of the fixed barrel when replacing the raw material, and can quickly replace the raw material according to production needs, shorten the overall downtime, and help improve the efficiency of the overall production line.

[0032] Those skilled in the art should understand that the discussion of any of the above embodiments is only exemplary and is not intended to imply that the scope of the present invention is limited to these examples; under the concept of the present invention, the technical features in the above embodiments or different embodiments can also be combined, the steps can be implemented in any order, and there are many other changes in different aspects of the present invention as described above, which are not provided in detail for the sake of simplicity. Any omissions, modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A soft and hard plastic two-color injection molding device, comprising a main frame (1), a two-color injection mold (101) is installed at the front end of the main frame (1), characterized in that: Also includes: A heating sleeve (105) is horizontally symmetrically arranged on the rear side of the two-color injection mold (101), and the front and rear ends of the heating sleeve (105) are both provided with nesting openings (106), and an electric heating wire (108) is arranged around the middle of the heating sleeve (105); A translation guide rail (2) is horizontally and symmetrically arranged on the left and right sides of the main frame (1), and a translation traction frame (201) is slidably connected in the middle of the translation guide rail (2); A rotating adjustment frame (7) is symmetrically arranged at the rear end of the main frame (1); a rotating connection ring (703) is connected to the rear side of the rotating adjustment frame (7); the rotating adjustment frame (7) is rotatably connected to the main frame (1) via the rotating connection ring (703); a plurality of embedded storage grooves (701) are evenly arranged in a circular shape in the middle of the rotating adjustment frame (7); and a storage guide rail (702) is horizontally connected to the middle of the embedded storage groove (701); A unit barrel (4) is slidably arranged on the inner side of the engaging receiving groove (701), a unit hopper (803) is detachably connected to the top rear side of the unit barrel (4), a feeding screw (6) is nested and rotatably arranged on the inner side of the unit barrel (4), a conical injection nozzle (5) is arranged at the front end of the unit barrel (4), and a conical injection port (102) is symmetrically arranged on the rear side of the two-color injection mold (101), and the unit barrel (4) is mutually engaged and connected with the two-color injection mold (101) through the conical injection nozzle (5) and the conical injection port (102); A traction connection frame (405) is connected to the rear end of the unit barrel (4), and the unit barrel (4) is slidably connected to the storage guide rail (702) and the translation guide rail (2) through the traction connection frame (405). A traction interlocking groove (406) is provided in the middle connection of the traction connection frame (405), and the translation traction frame (201) and the traction interlocking groove (406) are arranged to cooperate with each other.

2. The soft and hard plastic two-color injection molding device according to claim 1 is characterized in that: The inner wall of the heating sleeve (105) is surrounded by a plurality of interlocking connection grooves (107), and the outer wall of the unit barrel (4) is surrounded by a plurality of interlocking connection blocks (401). The interlocking connection blocks (401) and the interlocking connection grooves (107) are arranged correspondingly to each other and their sizes match each other. When the unit barrel (4) is slidably inserted into the inner side of the heating sleeve (105) through the nesting opening (106), the interlocking connection blocks (401) and the interlocking connection grooves (107) are interlocked and connected with each other.

3. The soft and hard plastic two-color injection molding device according to claim 1, characterized in that: An injection channel (501) is provided at the center of the conical injection nozzle (5), an injection opening (502) is provided at the front end of the injection channel (501), the rear end of the injection channel (501) is interconnected with the interior of the unit barrel (4), a hollow guide sleeve (503) is provided on the rear side of the injection opening (502), the hollow guide sleeve (503) is fixedly connected to the unit barrel (4), a closed ejector rod (504) is nested and slidably provided on the inner side of the hollow guide sleeve (503), a closed spring (505) is provided on the rear side of the closed ejector rod (504), the sizes of the closed ejector rod (504) and the injection channel (501) are matched with each other, and the closed spring (505) pushes the closed ejector rod (504) to be inserted into the injection channel (501) to close the injection opening (502).

4. The soft and hard plastic two-color injection molding device according to claim 3 is characterized in that: A liquid delivery channel (104) is provided at the front end of the center of the conical injection port (102); an opening push rod (103) is fixedly connected to the middle of the conical injection port (102); the diameter of the opening push rod (103) is smaller than the inner diameter of the injection channel (501); when the conical injection nozzle (5) is completely embedded in the conical injection port (102), the opening push rod (103) pushes the closing push rod (504) to move backward and away from the injection channel (501) to open the injection opening (502).

5. The soft and hard plastic two-color injection molding device according to claim 1, characterized in that: The rotating adjustment frame (7) drives all the unit barrels (4) carried thereon to rotate. When the unit barrel (4) rotates to the rear of the heating sleeve (105), the storage guide rail (702) and the translation guide rail (2) are aligned with each other and located on the same horizontal line, and the traction engagement groove (406) on the corresponding unit barrel (4) is embedded in the translation traction frame (201). The translation traction frame (201) drives the unit barrel (4) to move synchronously along the storage guide rail (702) and the translation guide rail (2) through the traction engagement groove (406).

6. The soft and hard plastic two-color injection molding device according to claim 5, characterized in that: The rear end of the traction connecting frame (405) is provided with a positioning connecting groove (407), the internal connection of the translation guide rail (2) is provided with a locking connecting sleeve (205), the inner side of the locking connecting sleeve (205) is nested and slidably provided with a locking positioning pin (206), the rear side of the locking positioning pin (206) is provided with a locking spring (207), the rear end of the locking connecting sleeve (205) is connected with an unlocking electromagnet (208), when the unit barrel (4) is slidably nested into the inner side of the heating sleeve (105), the conical injection nozzle (5) is completely embedded in the conical injection port (102), and the positioning connecting groove (407) and the locking positioning pin (206) are aligned with each other.

7. The soft and hard plastic two-color injection molding device according to claim 1, characterized in that: A central drive shaft (601) is connected to the center of the feeding screw (6); the rear end of the central drive shaft (601) passes through the rear end of the unit barrel (4) and is connected to a conveying bevel gear (602); the rear side of the conveying bevel gear (602) is connected to a rotating connection disk (603); the rear side of the rotating connection disk (603) is connected to a pressure sensor (604); the rear side of the pressure sensor (604) is provided with a buffer spring (605); the front and rear ends of the buffer spring (605) are respectively fixedly connected to the pressure sensor (604) and the traction connection frame (405).

8. The soft and hard plastic two-color injection molding device according to claim 7, characterized in that: A screw servo motor (3) is vertically arranged at the lower rear side of the heating sleeve (105); the screw servo motor (3) is fixedly connected to the main frame (1); a drive sleeve (301) is connected to the shaft end of the screw servo motor (3); a drive connecting shaft (302) is slidably arranged inside the drive sleeve (301); a drive bevel gear (303) is connected to the shaft end of the drive connecting shaft (302); a rotating connecting sleeve (304) is rotatably arranged on the upper side of the drive connecting shaft (302); and the outer side of the rotating connecting sleeve (304) is connected to the drive connecting shaft (302). A lifting clutch frame (305) is connected to the main frame (1), and a hydraulic telescopic rod (306) is connected to the outer side of the lifting clutch frame (305). The upper and lower ends of the hydraulic telescopic rod (306) are respectively connected to the lifting clutch frame (305) and the main frame (1). The hydraulic telescopic rod (306) drives the driving connection shaft (302) and the driving bevel gear (303) to move up and down synchronously through the lifting clutch frame (305) and the rotating connecting sleeve (304), so that the driving bevel gear (303) and the conveying bevel gear (602) moved above the driving bevel gear (303) are engaged with or separated from each other.

9. The soft and hard plastic two-color injection molding device according to claim 1, characterized in that: A hopper adjustment frame (8) is arranged above the rear side of the heating sleeve (105), a central rotating shaft (801) is arranged vertically at the center of the hopper adjustment frame (8), the hopper adjustment frame (8) is rotatably connected to the main frame (1) via the central rotating shaft (801), a second adjustment motor (802) is connected to the shaft end of the central rotating shaft (801), a plurality of unit hoppers (803) are evenly arranged around the middle of the hopper adjustment frame (8), and the unit hoppers (803) are arranged in a manner that allows the hopper to move freely. The bottom end is connected with a vertical feeding pipe (9), the bottom end of which is provided with a feeding interface (902), the top rear end of the unit barrel (4) is connected with a feeding connection pipe (403), the top of which is provided with a feeding interface (404), and when the unit barrel (4) is completely slid and nested into the inner side of the heating sleeve (105), the feeding interface (404) is aligned with the feeding interface (902) rotated to the top of the unit barrel (4).

10. The soft and hard plastic two-color injection molding device according to claim 9, characterized in that: A closed sleeve (904) is slidably nested on the outer side of the vertical feeding tube (9), a magnetic linkage ring (906) is connected and arranged around the outer side of the closed sleeve (904), a connecting spring (905) is arranged above the magnetic linkage ring (906), and a ring-shaped electromagnet (903) is arranged around the outer side of the upper end of the vertical feeding tube (9).

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