Shoe sole producing, processing and injection molding device

Abstract

The invention relates to the technical field of injection molding equipment, in particular to a shoe sole production and processing injection molding device. The mold comprises a mold A and a mold B which are used for opening and closing the mold, and the mold A and the mold B can move in the vertical direction after mold closing; and the injection assembly comprises an injection gun and a feeding piece for supplying materials to the injection gun, and the injection gun is provided with a gun barrel flexibly connected with the A mold. The melt viscosity monitoring assembly monitors the viscosity of a molten material in real time and converts the viscosity into the injection pressure and the injection speed of the injection assembly, the cooling strength of the water-cooling cooling assembly and the final mold jacking force (resistance strength) of the jacking block borne by the last air inflow (the last air pushing strength) borne by a formed product. A dynamic matching mechanism of material viscosity-injection pressure / speed-cooling strength-demolding strength is established, and the injection production device is high in adaptability to material characteristic changes, especially in multi-material and multi-working-condition production scenes such as shoe sole injection molding.

Description

Technical Field

[0001] The present invention relates to the technical field of injection molding equipment, and particularly to an injection device for sole production and processing. Background Art

[0002] An injection molding device mainly consists of an injection system, a mold clamping system, and a demolding mechanism. Its working principle is as follows: The material is plasticized in the barrel and then injected into the mold cavity. After pressure holding and cooling and solidification, the product is finally separated from the mold through the demolding mechanism (such as ejector pins, ejector plates, or pneumatic devices). In the existing demolding process, the demolding force control depends on fixed mechanical limits or preset hydraulic / pneumatic parameters. For example, in ejector pin demolding, the ejector pin group is driven by hydraulic pressure to push out the product, and in pneumatic demolding, a constant air pressure is used to blow off the product. The core lies in completing the demolding action through mechanical structures or fixed pressure parameters.

[0003] However, the existing technology has significant defects when dealing with materials of different viscosities: Firstly, the demolding force adjustment method is single and cannot adapt to changes in material viscosity. For high-viscosity materials (such as TPU), due to the strong adsorption force between the melt and the mold, a fixed demolding force is likely to cause the product to tear or remain in the mold cavity. For low-viscosity materials (such as EVA), excessive demolding force may cause surface depressions or deformations. Secondly, there is a lack of a dynamic correlation mechanism between viscosity and demolding parameters. The existing demolding strength only depends on manual experience presetting and cannot be automatically adjusted according to the molten state of the material (such as the real-time changes in viscosity with temperature and shear rate). For example, when changing between TPU and EVA materials during sole production, multiple trial moldings are required to adjust the ejection force or air pressure, resulting in low production efficiency and unstable product qualification rates. Thirdly, the demolding system is not integrated with an on-line detection function and cannot sense the melt viscosity fluctuations in real time and provide feedback control, further increasing the risk of demolding failure.

[0004] The root cause of the above problems is that the existing demolding technology has not established a dynamic matching mechanism of "material viscosity - demolding strength", resulting in insufficient adaptability of the demolding process to changes in material properties. Especially in production scenarios such as sole injection molding with multiple materials and multiple working conditions, a technical solution that can automatically adjust the demolding strength according to the material viscosity is urgently needed to improve production stability and efficiency. Summary of the Invention

[0005] The present invention provides an injection device for sole production and processing. By setting a melt viscosity monitoring component and a demolding strength adaptive adjustment component, the technical problem in the existing technology that the demolding force adjustment method cannot be dynamically matched with the material viscosity is solved. The technical effect of automatically adjusting the demolding ejection force and demolding strength according to the real-time detected material viscosity is achieved, effectively avoiding defects such as demolding tearing of high-viscosity materials and demolding deformation of low-viscosity materials, and significantly improving the product qualification rate and production efficiency during the multi-material switching in sole injection molding production.

[0006] To achieve the above object, the present invention is realized by the following technical solutions: The present invention provides an injection molding device for sole production and processing, comprising: A machine body; A mold, including a mold A and a mold B for opening and closing the mold, and after the mold is closed, the mold A and the mold B can move in the vertical direction; An injection assembly, including an injection gun and a feeding member for feeding the injection gun, and the injection gun has a barrel that is flexibly connected to the mold A; A water-cooling and temperature-reducing assembly, which is flexibly connected to the mold and cools it by water; A melt viscosity monitoring assembly, including a monitoring box arranged at the lower end of the machine body, an A column fixed to the lower end of the mold A, and a B column in contact with the lower end of the mold B. The lower ends of the A column and the B column penetrate through the monitoring box and are fixedly connected to a monitoring slide plate. A conductive block and a resistance plate in contact with each other are embedded on the opposite side of the monitoring slide plate and the monitoring box. The resistance plate and the conductive block are connected in series through a timer to a control assembly. The lower end of the monitoring slide plate is elastically connected to the monitoring box. During the process of injecting molten material into the mold by the injection assembly, a preset air volume is uniformly filled into the space below the monitoring slide plate in the monitoring box; A first telescopic member, which is elastically arranged inside the machine body, and the telescopic end of the first telescopic member is fixed to the mold B; A demolding strength self-adaptive adjustment assembly and a matching assembly that cooperate with each other, which are used to sequentially and intermittently fill an increasing amount of air after the sole in the mold is cooled and solidified and provide a corresponding mold lifting force subsequently.

[0007] Further, the water-cooling and temperature-reducing assembly includes a circulation pipe, a water-cooling corrugated pipe and a water tank, and the water tank is communicated with the circulation cooling water channel of the mold A through the circulation pipe and the water-cooling corrugated pipe to provide circulation cooling.

[0008] Further, the lower end of the monitoring slide plate is fixedly connected with a first spring; A first pneumatic member is fixed to the outside of the monitoring box, and the first pneumatic member is communicated with the space below the monitoring slide plate in the monitoring box.

[0009] Further, the demolding strength self-adaptive adjustment assembly includes a cylinder body that moves intermittently and vertically towards the mold B, and the intermittent moving distance increases sequentially. A conductive slide plate is slidably connected inside the cylinder body. Permanent magnet plates and electromagnetic plates with magnetic repulsion cooperation are respectively fixed on the opposite sides of the conductive slide plate and the cylinder body. A rod body is fixedly connected to the side of the conductive slide plate close to the mold B, and one end of the rod body penetrates through the cylinder body. A second spring is fixed between the side of the conductive slide plate close to the mold B and the inner wall of the cylinder body; The matching assembly includes a first groove and a second groove that are sequentially opened in the mold B. The first groove is arranged close to the cylinder body and can be hermetically inserted with the rod body, and a top block is hermetically slid in the second groove, and the top block is arranged with variable resistance.

[0010] Further, the demoulding strength adaptive adjustment assembly further includes a driving structure. The driving structure includes a limiting rod at the end of the cylinder body, and the limiting rod penetrates through the machine body. A bracket is fixedly connected to the inner side of the machine body. A reciprocating lead screw is rotatably connected between the bracket and the inner wall of the machine body. A driving block is sleeved outside the reciprocating lead screw, and the driving block is fixed to the cylinder body. A passive gear is coaxially fixed on the reciprocating lead screw. A driving member for driving the driving gear is fixedly installed on the bracket, and the driving member is electrically connected to the control component.

[0011] Further, a plurality of pairs of resistance blocks are embedded in the inner wall of the cylinder body. Insulating plates are arranged between different pairs of adjacent two resistance blocks. The resistance values of the plurality of pairs of resistance blocks in the axial direction of the cylinder body facing the B mold decrease in sequence. A pneumatic component two is fixedly arranged on the outer surface of the cylinder body. A flow channel one is arranged in the rod body. The pneumatic component two is communicated with the flow channel one through a hose. On the inner wall of the groove two and symmetrically before the top block, groove three is opened. Two side blocks are symmetrically and airtightly slidably connected in the two groove threes. The two side blocks are symmetrically provided with beveled surfaces. A spring three is fixedly connected between the side block and the inner wall of the groove three. On the side of the top block facing the cavity, a groove six is opened. A sliding column is airtightly slidably connected in the groove six. A telescopic member three is fixedly connected to the inner wall of the groove six. The telescopic end of the telescopic member three is fixed to the sliding column. On one side of the sliding column, a groove four is opened. A three-way valve is fixedly arranged in the groove four on the inner wall of the groove six. The Y end of the three-way valve is airtightly fixed to the inner wall of the groove four with a retracting corrugated pipe. A U-shaped flow channel five is arranged in the B mold, and the flow channel five is communicated with the Z end of the three-way valve through the groove four. The X end of the three-way valve is communicated with a flow channel four. A groove five communicated with the flow channel four is opened on the inner wall of the groove two. The groove five is communicated with a flow channel three. A flow channel two that can be communicated with the flow channel three is arranged in one of the side blocks. The plurality of pairs of resistance blocks are connected in parallel and then connected in series with the pneumatic component two.

[0012] Further, the matching assembly further includes a limiting structure. The limiting structure includes a spring four arranged in the groove two, a limiting block slidably connected in the spring four, and a telescopic member two fixedly arranged in the spring four and with the telescopic end fixed to the limiting block.

[0013] Further, when the sole production and processing injection molding device is in the injection molding state, the sliding column, the top block and the inner wall of the B mold are flush, and the telescopic member two and the telescopic member three are in a non-retractable state. The telescopic member two and the telescopic member three are electromagnetic self-resetting telescopic rods, and the telescopic member two and the telescopic member three are electrically connected to the control component.

[0014] The technical solution provided by the present invention has the following beneficial effects compared with the known prior art: The viscosity of the molten material is monitored in real time through a melt viscosity monitoring component, and it is converted into the injection pressure and injection speed of the injection component, the cooling intensity of the water-cooling cooling component, the intake air volume of the molded product during the last time (the air-pushing intensity during the last time), and the final mold-pushing force (resistance intensity) of the ejector block. A dynamic matching mechanism of "material viscosity - injection pressure / speed - cooling intensity - demolding intensity" is established. This injection production device has strong adaptability to changes in material properties, especially in production scenarios with multiple materials and multiple working conditions such as sole injection molding. Brief Description of the Drawings

[0015] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for the description of the embodiments or the prior art. Obviously, the drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0016] Figure 1 Structural schematic diagram of the present invention; Figure 2 Partial cross-sectional view of the melt viscosity monitoring component in the present invention; Figure 3 Front view of the present invention; Figure 4 Partial cross-sectional view of the demolding strength adaptive adjustment component in the present invention; Figure 5 Partial cross-sectional view of the matching component in the present invention; Figure 6 is Figure 5 Enlarged view of part A in

[0017] Reference Numerals: 1, body; 2, mold; 21, mold A; 22, mold B; 3, injection assembly; 31, injection gun; 32, barrel; 33, feeding part; 4, water-cooling and temperature-reducing assembly; 41, circulation pipe; 42, water-cooling corrugated pipe; 43, water tank; 5, melt viscosity monitoring assembly; 51, monitoring box; 52, monitoring slide plate; 53, column A; 54, column B; 55, resistance plate; 56, conductive block; 57, first spring; 58, first pneumatic part; 6, first telescopic part; 7, demolding strength self-adaptive adjustment assembly; 71, cylinder block; 72, electromagnetic plate; 73, permanent magnet plate; 74, conductive slide plate; 75, rod body; 76, second spring; 77, resistance block; 78, first runner; 79, drive structure; 791, limiting rod; 792, reciprocating lead screw; 793, drive block; 794, passive gear; 795, active gear; 796, drive part; 8, matching assembly; 81, first groove; 82, second groove; 83, third groove; 84, third spring; 85, side block; 86, second runner; 87, ejector block; 88, limiting structure; 881, second telescopic part; 882, limiting block; 883, fourth spring; 89, sliding column; 810, fourth groove; 811, fifth groove; 812, third runner; 813, fourth runner; 814, three-way valve; 815, retracting corrugated pipe; 816, fifth runner; 817, sixth groove; 818, third telescopic part. Detailed Embodiment

[0018] To better understand the technical solution, the technical solution will be described in detail below in conjunction with the accompanying drawings of the specification and specific embodiments.

[0019] Example: Refer to Figures 1 to 6 , an injection molding device for sole production and processing, including a body 1, a mold 2, an injection assembly 3, a water-cooling and temperature-reducing assembly 4, a melt viscosity monitoring assembly 5, a first telescopic part 6, a demolding strength self-adaptive adjustment assembly 7 and a matching assembly 8. Through the mutual cooperation of the above components, during the process of molten material entering the cavity, the melt viscosity monitoring assembly 5 monitors the change in gravity and converts it into a monitored current value, thereby reflecting the material viscosity. Based on the material viscosity, the injection pressure and injection speed of the injection assembly 3, the water-cooling intensity of the water-cooling and temperature-reducing assembly 4, and the demolding strength of the demolding strength self-adaptive adjustment assembly 7 are adjusted, which is applicable to production scenarios with multiple materials and multiple working conditions.

[0020] Among them: The mold 2 includes mold A 21 and mold B 22 for mold opening and closing. It should be noted that there is a fitting positioning structure between mold A 21 and mold B 22, and after mold closing, mold A 21 and mold B 22 can move in the vertical direction.

[0021] The injection assembly 3 includes an injection gun 31 and a feeding part 33 for feeding the injection gun 31. The injection gun 31 has a barrel 32 that is softly connected to mold A 21. The barrel 32 is a ductile metal and has a certain degree of curvature.

[0022] Referring to the machine body 1, the water-cooling component 4 is flexibly connected to the mold 2 and cools it by water. The water-cooling component 4 includes a circulation pipe 41, a water-cooling corrugated pipe 42, and a water tank 43. The water tank 43 is connected to the circulating cooling water channel of the A mold 21 through the circulation pipe 41 and the water-cooling corrugated pipe 42 to provide circulating cooling. The water-cooling method adopts the prior art, and its water pumping component and the circulating cooling water channel are not shown in the figure.

[0023] Referring to Figure 2 , the melt viscosity monitoring component 5 includes a monitoring box 51 arranged at the lower end of the machine body 1, an A column 53 fixed to the lower end of the A mold 21, and a B column 54 in contact with the lower end of the B mold 22. The lower ends of the A column 53 and the B column 54 penetrate through the monitoring box 51 and are fixedly connected with a monitoring slide plate 52. A conductive block 56 and a resistance plate 55 in contact with each other are embedded on the opposite side of the monitoring slide plate 52 and the monitoring box 51. The resistance plate 55 and the conductive block 56 are connected in series through a timer to a control component. The lower end of the monitoring slide plate 52 is elastically connected to the monitoring box 51, that is, a first spring 57 is fixedly connected to the lower end of the monitoring slide plate 52. The viscosity of the material is reflected by the current value in the circuit where the conductive block 56 and the resistance plate 55 are located. During the process of the injection component 3 injecting molten material into the mold 2, a preset air volume is uniformly filled into the space below the monitoring slide plate 52 in the monitoring box 51 for comparison with the preset material viscosity. The relevant measures for filling air are as follows: a first pneumatic component 58 is fixed on the outside of the monitoring box 51, and the first pneumatic component 58 is communicated with the space below the monitoring slide plate 52 in the monitoring box 51.

[0024] Referring to Figure 3 , the first telescopic component 6 is elastically arranged inside the machine body 1, that is, an elastic structure connected to the first telescopic component 6 is arranged on the inner wall of the machine body 1. The telescopic end of the first telescopic component 6 is fixed to the B mold 22, and the first telescopic component 6 is used to telescopically drive the B mold 22 to open and close with the A mold 21; Referring to Figures 3 to 6 , the mutually cooperating demoulding strength self-adaptive adjustment component 7 and the cooperating component 8 are used to sequentially and intermittently fill an increasing amount of air after the sole of the mold 2 is cooled and solidified and provide a corresponding mold lifting force subsequently. Specifically: The demoulding strength self-adaptive adjustment component 7 includes a cylinder body 71 that moves vertically and intermittently towards the B mold 22, and the intermittent moving distance increases sequentially. A conductive slide plate 74 is slidably connected inside the cylinder body 71. Permanent magnet plates 73 and electromagnetic plates 72 that are magnetically repellent and cooperate with each other are respectively fixed on the opposite sides of the conductive slide plate 74 and the cylinder body 71. A rod body 75 is fixedly connected to the side of the conductive slide plate 74 close to the B mold 22. One end of the rod body 75 penetrates through the cylinder body 71. A second spring 76 is fixed between the side of the conductive slide plate 74 close to the B mold 22 and the inner wall of the cylinder body 71. The magnetic repulsion force is used to push the conductive slide plate 74 and the rod body 75 to move; To enable the rod body 75 to have sufficient moving length, the demolding strength adaptive adjustment assembly 7 further includes a driving structure 79. The driving structure 79 includes a limiting rod 791 at the end of the cylinder block 71, and the limiting rod 791 penetrates through the machine body 1. A bracket is fixedly connected to the inner side of the machine body 1, and a reciprocating lead screw 792 is rotatably connected to the inner wall of the machine body 1 and the bracket. A driving block 793 is sleeved outside the reciprocating lead screw 792, and the driving block 793 is fixed to the cylinder block 71. A passive gear 794 is coaxially fixed on the reciprocating lead screw 792, and a driving member 796 for driving the driving gear 795 is fixedly installed on the bracket, and the driving member 796 is electrically connected to the control assembly through the resistance block 77.

[0025] In order to achieve continuously increasing air thrust and mechanical thrust, a plurality of pairs of resistance blocks 77 are embedded in the inner wall of the cylinder block 71. Insulating plates are arranged between different pairs of adjacent two resistance blocks 77. The resistance values of the plurality of pairs of resistance blocks 77 facing the axis direction of the B mold 22 are sequentially decreased. The plurality of pairs of resistance blocks 77 are connected in parallel and then connected in series with the pneumatic component II, so that the current values of the circuits where each pair of resistance blocks 77 are located are sequentially increased, thereby sequentially increasing the power of the pneumatic component II. A pneumatic component II is fixed on the outer surface of the cylinder block 71. The pneumatic component I 58 and the pneumatic component II are both air pumps (not shown in the figure). A flow channel I 78 is opened in the rod body 75. The pneumatic component II is communicated with the flow channel I 78 through a hose. The width of the resistance block 77 is greater than the width of the conductive slide plate 74, so that during the contact process of the conductive slide plate 74 with each pair of resistance blocks 77, the pneumatic component II works for a corresponding time.

[0026] Refer to Figures 5 to 6 As shown in the figure, the matching assembly 8 includes a groove I 81 and a groove II 82 that are sequentially opened in the B mold 22. The groove I 81 is arranged close to the cylinder block 71 and can be hermetically inserted with the rod body 75 to prevent air leakage from entering the groove II 82 through the flow channel I 78. A top block 87 is hermetically slid in the groove II 82 to prevent the material in the cavity from being affected by the sealing performance. And the top block 87 is arranged with variable resistance, and this variable resistance setting is specifically a limiting structure 88. The limiting structure 88 includes a spring IV 883 opened in the groove II 82, a limiting block 882 slidably connected in the spring IV 883, and a telescopic member II 881 fixed in the spring IV 883 and with its telescopic end fixed to the limiting block 882. When the sole production and processing injection molding device is in the injection molding state, the sliding column 89, the top block 87 and the inner wall of the B mold 22 are flush, and the telescopic member II 881 and the telescopic member III 818 are in an inextensible state. The telescopic member II 881 and the telescopic member III 818 are electromagnetic self-resetting telescopic rods, and the telescopic member II 881 and the telescopic member III 818 are electrically connected to the control assembly. The telescopic member II 881 and the limiting block 882 are completely inextensible in the energized state, and can still maintain the positions of the top block 87 and the sliding column 89 after power-off, but can they expand and contract under force.

[0027] On the inner wall of the second groove 82 and symmetrically before the top block 87, a third groove 83 is opened. Two side blocks 85 are symmetrically and airtightly slidably connected in the two third grooves 83, and the side blocks 85 are airtightly slidable with the second groove 82. Before the rod body 75 contacts the side blocks 85, the air pumped by the second pneumatic component is pumped into the second flow channel 86. The two side blocks 85 are symmetrically provided with inclined cutting surfaces, and under the action of these inclined cutting surfaces, a component force is generated in the direction towards the third groove 83. A third spring 84 is fixedly connected between the side blocks 85 and the inner wall of the third groove 83. Under the action of the third springs 84 of the two side blocks 85 in the normal state, they maintain airtight contact; On the side of the top block 87 facing the cavity, a sixth groove 817 is opened. A sliding column 89 is airtightly slidably connected in the sixth groove 817. An expansion component three 818 is fixedly connected to the inner wall of the sixth groove 817. The expansion end of the expansion component three 818 is fixedly connected to the sliding column 89. When the shoe sole production and processing injection device is in the injection state, the sliding column 89, the top block 87 and the inner wall of the B mold 22 are flush, and the expansion component two 881 and the expansion component three 818 are in a non-expandable state to maintain the position of the sliding column 89; On one side of the sliding column 89, a fourth groove 810 is opened. A three-way valve 814 is fixed in the inner wall of the sixth groove 817 and within the fourth groove 810. The three-way valve 814 is not affected during the movement of the sliding column 89. The Y end of the three-way valve 814 is airtightly fixed to the inner wall of the fourth groove 810 with a retractable bellows 815. A U-shaped fifth flow channel 816 is opened in the B mold 22, and the fifth flow channel 816 is communicated with the Z end of the three-way valve 814 through the fourth groove 810. The X end of the three-way valve 814 is communicated with a fourth flow channel 813. A fifth groove 811 communicating with the fourth flow channel 813 is opened in the inner wall of the second groove 82. The fifth groove 811 is communicated with a third flow channel 812. A second flow channel 86 that can be communicated with the third flow channel 812 is opened in one of the side blocks 85; the three-way valve 814 (electromagnetically controlled) changes the port connection mode in sequence and the Y end is communicated with the Z end in the normal state.

[0028] The working principle of this device is as follows: 1. When this device is about to inject, the A mold 21 and the B mold 22 are in the mold closing state. The expansion component two 881 and the expansion component three 818 are in a non-expandable state. The sliding column 89, the top block 87 and the cavity are flush. One end of the fifth flow channel 816 is closed by the top block 87. The second flow channel 86 and the third flow channel 812 are in a misaligned state. The permanent magnet plate 73 is in the relative position close to the electromagnetic plate 72. The conductive block 56 is in the middle section of the resistance plate 55. The lower end of the resistance plate 55 is the electrical connection end. During the injection process, the conductive block 56 can slide relative to the resistance plate 55, and the conductive block 56 is always in the middle section position of the resistance plate 55 for the preset material viscosity.

[0029] 2. During the injection molding process of this device, the injection gun 31 injects the molten material in the feeding part 33 into the cavity through the barrel 32. The weight of the molten material entering the cavity per unit time is the melt volume flow rate, which reflects the fluidity of the material. The weight of the material entering the cavity per unit time is positively correlated with the fluidity of the material and negatively correlated with the viscosity. That is, the greater the weight of the material entering the cavity per unit time, the better the fluidity of the material and the lower the viscosity. At the same time, the pneumatic component 58 evenly inflates the space below the monitoring slide 52 in the monitoring box 51 to offset the gravity of the material. The dynamic position change of the conductive block 56 relative to the middle section of the resistance plate 55 reflects that the current viscosity of the molten material is lower or higher than the preset standard value. The conductive block 56 and the resistance plate 55 form a current value in the circuit and transmit it to the control component, and time for 5 minutes. The injection component 3 completes the injection molding of the mold 2 within 3 minutes, and the water-cooling cooling component 4 cools and solidifies the sole in the cavity from the 3rd to the 5th minute; It should be noted that: ①. The pneumatic component 58 and the injection component 3 are opened and closed synchronously. The amount of molten material injected into the cavity per unit time and the amount of air injected into the monitoring slide 52 generate a force interaction, that is, the downward gravity and the upward air pressure thrust interact (the same is true for the spring 57 and the air). ②. Since there is a certain degree of movement of the A mold 21 and the B mold 22 in the vertical direction, as an adaptive setting, the barrel 32 is a flexible metal tube with a certain toughness. The telescopic component 6 is elastically arranged in the vertical direction of the machine body 1. The setting of the water-cooling bellows 42 does not affect the normal circulation cooling, and the contact connection between the B column 54 and the B mold 22 does not affect the normal mold opening and closing. ③. The driving components in the injection component 3 and the water-cooling cooling component 4 are DC motor devices and are in the same power supply circuit as the conductive block 56 and the resistance plate 55. The injection pressure and injection speed of the injection component 3 and the cooling intensity of the water-cooling cooling component 4, that is, when the current value is greater than the preset current value (the conductive block 56 is at a position higher than the middle section of the resistance plate 55), increase the injection pressure and injection speed of the injection component 3 and increase the cooling intensity of the water-cooling cooling component 4.

[0030] 3. Refer to Figures 4 to 6, after 5 minutes, the telescopic member 2 881 and the telescopic member 3 818 are powered off within 3 seconds to release the incompressible state, and the control component controls the telescopic member 1 6 to retract to drive the B mold 22 to separate from the A mold 21, so that the rod body 75 is passively and airtightly plugged into the groove 1 81. After 3 seconds, the control component powers on the electromagnetic plate 72 for 15 seconds. Within 1 minute, the electromagnetic plate 72 generates a magnetic repulsion force on the permanent magnet plate 73, but under the friction between the conductive slide plate 74 and the cylinder body 71 and the elastic resistance of the spring 2 76, the conductive slide plate 74 and the permanent magnet plate 73 slide for 15 seconds. Before the conductive slide plate 74 contacts the resistor block 77 at the front, the rod body 75 squeezes the two side blocks 85 at the same time and separates them to slide toward the groove 3 83 until the rod body 75 contacts the opposite side of the two side blocks 85 and the side blocks 85 cannot continue to move, and the flow channel 2 86 is connected with the flow channel 3 812; During each contact between the conductive slide plate 74 and the resistor block 77, the pneumatic part 2 and the driving part 796 also form a passage. When the conductive slide plate 74 contacts the first pair of resistor blocks 77 at the front, the three-way valve 814 connects the X end with the Y end, and the pneumatic part 2 sequentially charges the preset air volume into the retracting bellows 815 through the flow channel 1 78, the groove 2 82, the flow channel 3 812, the groove 5 811, the flow channel 4 813, the X end, and the Y end, pushing the slide column 89 to move toward the direction of the telescopic part 3 818 so that the flow channel 5 816 is connected with the cavity. When the conductive slide plate 74 is in contact with the rear side resistor block 77, the three-way valve 814 connects the X end with the Z end, and the pneumatic part 2 inflates the cavity through the flow channel 1 78, the groove 2 82, the flow channel 3 812, the groove 5 811, the flow channel 4 813, the X end, and the Z end. Since the resistance values ​​of the multiple pairs of resistor blocks 77 decrease in sequence, on the one hand, the current in the passage where they are located increases in sequence, so that the power of the pneumatic part 2 increases in sequence, and the increasing air cap strength is achieved. On the other hand, the current in the passage where the driving part 796 is located also increases in sequence, so that its power increases in sequence. , realize the overall increasing moving distance of the cylinder body 71 and the rod body 75, and due to the existence of the insulating plate, a pause is generated between each two movements to give the sole a response time to the air push, and drive the cylinder body 71 and the rod body 75 to move toward the cavity. Under the magnetic repulsion of the electromagnetic plate 72 to the permanent magnet plate 73, the rod body 75 moves at a low speed and the cylinder body 71 and the rod body 75 are intermittently driven. After the sole is subjected to two air thrusts, the rod body 75 pushes the top block 87 to push the sole, and the sole is subjected to the gradually enhanced top mold force and the double enhanced top mold force in turn; The cross-sectional area of ​​the top block 87 is increased relative to the rod body 75, and the pushing of the sole is gentler. The method of first pushing with air and then pushing with mechanical force makes demoulding gentler and more effective, which is adapted to the viscosity of the material and effectively completes the demoulding. In addition, during the movement of the sliding column 89, the flow channel four 813 always keeps connected with the flow channel three 812 through the groove five 811.

[0031] 4. After the demolding ends in 15 seconds, the control component controls the Y end and the Z end of the three-way valve 814 to communicate, so that the air in the retracted bellows 815 enters the cavity through the Z end and the fifth runner 816, causing the slide column 89 to reset. The control component controls the driving part 796 to drive in the reverse direction for a preset time to reset the relevant structures for the next injection molding use.

[0032] Generally speaking, the melt viscosity monitoring component 5 monitors the viscosity of the molten material in real time and converts it into the injection pressure and injection speed of the injection component 3, the cooling intensity of the water-cooling cooling component 4, the intake air volume of the molded product in the last time (the air-pushing intensity in the last time), and the final mold-pushing force (resistance intensity) of the ejector block 87, establishing a dynamic matching mechanism of "material viscosity - injection pressure / speed - cooling intensity - demolding intensity". This injection production device has strong adaptability to the changes in material characteristics, especially in the production scenarios of multi-material and multi-condition such as sole injection molding.

[0033] Although the preferred embodiments of the present invention have been described, those skilled in the art can make additional changes and modifications to these embodiments once they know the basic creative concept. Therefore, the appended claims are intended to be construed to include the preferred embodiments as well as all changes and modifications falling within the scope of the present invention.

[0034] Obviously, those skilled in the art can make various changes and modifications to the present invention without departing from the spirit and scope of the present invention. Thus, if these modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalent technologies, the present invention also intends to include these changes and variations.

Claims

1. An injection molding device for sole production and processing, characterized in that, Comprising: Machine body; Mould, including mould A and mould B for opening and closing the mould, and after mould closing, mould A and mould B can move in the vertical direction; Injection component, including an injection gun and a feeding component for feeding the injection gun, and the injection gun has a barrel that is flexibly connected to mould A; Water-cooling temperature reduction component, which is flexibly connected to the mould and cools it by water; Melt viscosity monitoring component, including a monitoring box arranged at the lower end of the machine body, an A column fixed to the lower end of mould A, and a B column in contact with the lower end of mould B. The lower ends of the A column and the B column penetrate through the monitoring box and are fixedly connected with a monitoring slide plate. On the opposite side of the monitoring slide plate and the monitoring box, there are inlaid a conductive block and a resistance plate in contact with each other. The resistance plate and the conductive block are connected in series through a timer to a control component. The lower end of the monitoring slide plate is elastically connected to the monitoring box. During the process of the injection component injecting molten material into the mould, a preset air volume is uniformly filled into the space below the monitoring slide plate in the monitoring box; First telescopic component, elastically arranged inside the machine body, and the telescopic end of the first telescopic component is fixed to mould B; A demoulding strength self-adaptive adjustment component and a matching component that cooperate with each other, which are used to sequentially and intermittently fill in increasing air volumes after the sole of the mould is cooled and solidified and provide corresponding mould lifting forces subsequently.

2. The sole production and processing injection molding device according to claim 1, wherein, The water-cooling temperature reduction component includes a circulation pipe, a water-cooling corrugated pipe and a water tank. The water tank is communicated with the circulation cooling water channel of mould A through the circulation pipe and the water-cooling corrugated pipe to provide circulating cooling.

3. The injection molding device for sole production and processing according to claim 1, characterized in that, The lower end of the monitoring slide plate is fixedly connected with a first spring; A first pneumatic component is fixed on the outer side of the monitoring box, and the first pneumatic component is communicated with the space below the monitoring slide plate in the monitoring box; 4. The injection molding device for sole production and processing according to claim 1, characterized in that, The demoulding strength self-adaptive adjustment component includes a cylinder body that moves intermittently and vertically towards mould B, and the intermittent moving distance increases sequentially. A conductive slide plate is slidably connected inside the cylinder body. On the opposite sides of the conductive slide plate and the cylinder body, there are respectively fixed a permanent magnet plate and an electromagnetic plate with magnetic repulsion cooperation. One side of the conductive slide plate close to mould B is fixedly connected with a rod body, and one end of the rod body penetrates through the cylinder body. On one side of the conductive slide plate close to mould B and the inner wall of the cylinder body, there is a second spring fixed; The matching component includes a first groove and a second groove that are sequentially opened in mould B. The first groove is close to the cylinder body and can be hermetically inserted with the rod body. A top block is hermetically slidable in the second groove, and the top block is arranged with variable resistance; 5. The sole production and processing injection molding device according to claim 4, characterized in that, The demoulding strength self-adaptive adjustment component further includes a driving structure. The driving structure includes a limiting rod at the end of the cylinder body, and the limiting rod penetrates through the machine body. A bracket is fixedly connected inside the machine body. A reciprocating lead screw is rotatably connected between the bracket and the inner wall of the machine body. A driving block is sleeved outside the reciprocating lead screw, and the driving block is fixed to the cylinder body. A passive gear is coaxially fixed on the reciprocating lead screw. A driving component for driving an active gear is fixedly installed on the bracket, and the driving component is electrically connected to the control component; 6. The sole production and processing injection molding device according to claim 4, characterized in that, Multiple pairs of resistance blocks are inlaid on the inner wall of the cylinder body. Insulating plates are arranged between different pairs of adjacent two resistance blocks. The resistance values of multiple pairs of resistance blocks in the axial direction of the cylinder body towards mould B decrease sequentially; A second pneumatic component is fixed on the outer surface of the cylinder body. A first flow channel is opened in the rod body, and the second pneumatic component is communicated with the first flow channel through a hose; On the inner wall of the second groove and symmetrically before the top block, there are third grooves opened. In the two third grooves, there are side blocks symmetrically and hermetically slidably connected, and the two side blocks are symmetrically provided with inclined cutting surfaces. A third spring is fixedly connected between the side block and the inner wall of the third groove; On the side of the top block facing the cavity, there is a sixth groove opened. In the sixth groove, there is a sliding column hermetically slidably connected. A third telescopic member is fixedly connected to the inner wall of the sixth groove, and the telescopic end of the third telescopic member is fixed to the sliding column; On one side of the sliding column, there is a fourth groove opened. A three-way valve is fixed in the fourth groove on the inner wall of the sixth groove. The Y end of the three-way valve is hermetically fixed to the inner wall of the fourth groove with a retracting corrugated pipe. In the B mold, there is a U-shaped fifth flow channel opened, and the fifth flow channel is communicated with the Z end of the three-way valve through the fourth groove. The X end of the three-way valve is communicated with a fourth flow channel. On the inner wall of the second groove, there is a fifth groove communicated with the fourth flow channel. The fifth groove is communicated with a third flow channel. In one of the side blocks, there is a second flow channel that can be communicated with the third flow channel; Multiple pairs of resistance blocks are connected in parallel and then connected in series with the second pneumatic component.

7. The sole production and processing injection molding device according to claim 6, characterized in that, The matching component further includes a limiting structure. The limiting structure includes a fourth spring opened in the second groove, a limiting block slidably connected in the fourth spring, and a second telescopic member fixed in the fourth spring and having a telescopic end fixed to the limiting block.

8. The injection molding device for sole production and processing according to claim 7, characterized in that, When the sole production and processing injection molding device is in the injection molding state, the sliding column, the top block and the inner wall of the B mold are flush, and the second telescopic member and the third telescopic member are in a non-telescopic state. The second telescopic member and the third telescopic member are electromagnetic self-resetting telescopic rods, and the second telescopic member and the third telescopic member are electrically connected to the control component.

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