Rubber sole forming injection molding machine and method of operating the same

Abstract

The application discloses a rubber sole forming injection molding machine and an operation method thereof, which comprises a rack, a rotatable table top, a rotary driving device, an injection molding device and a plurality of injection molding molds, the injection molding mold comprises a sliding groove arranged on the rotatable table top, a lower mold core comprising a pair of transverse moving mold cores and a mold cavity penetrating up and down, a mold core bottom plate which is installed in the mold cavity in a liftable manner, an upper mold core which is installed above the lower mold core in a liftable manner and is provided with a feeding pipe, a demolding mechanism for controlling the separation and folding of the pair of transverse moving mold cores, an adjusting mechanism for controlling the lifting of the mold core bottom plates in the mold cavity, and a separating mechanism for controlling the lifting of the upper mold cores. In daily use, the height of each mold core bottom plate in the corresponding mold core is adjusted by the adjusting mechanism to process soles with different thicknesses, and the pair of transverse moving mold cores and the corresponding upper mold core are separated at a discharging position by the demolding mechanism and the separating mechanism, so that workers can conveniently take out the formed soles.

Description

TECHNICAL FIELD

[0001] The present application relates to a rubber sole forming injection molding machine and its operating method. BACKGROUND

[0002] The rubber injection machine forming machine is a common device for making rubber products. The rubber injection machine extrudes the rubber raw material, and then injects the raw material into the mold with a large injection force. The ordinary rubber sole can be directly injected and vulcanized by the upper and lower molds of the rubber injection machine.

[0003] For example, the Chinese invention patent with publication number CN114986789A discloses a plastic shoe forming automatic adjusting injection machine and its operating method, which includes a base plate, a first support rod, a second support rod, a support seat, a plurality of adjusting mechanisms, a plurality of circular slide rails, an intermittent motion mechanism and an injection mechanism. The lower mold core and the upper mold core move up and down by controlling the adjusting mechanism, which can meet the injection molding of soles of different thicknesses. The automatic injection function and the convenient demolding operation are realized by the cooperation of the injection mechanism and the intermittent cooperation mechanism. However, it has the following defects:

[0004] 1. The shoe sole molded by injection is separated from the mold cavity groove by pushing the lower mold core upward. Although the sole has a certain elasticity, the peripheral wall usually has concave and convex lines, and forcibly ejecting it can easily damage the surface lines, affecting the quality of the finished product.

[0005] 2. The upper shoe mold and the lower shoe mold are separated by an external mechanical hand, and then the molded sole in the mold cavity groove is taken out. The rubber sole forming injection molding machine cannot realize the separation action of the upper shoe mold by itself, and the matched mechanical hand undoubtedly increases the configuration cost of the equipment, and affects the demolding efficiency. SUMMARY

[0006] The present application aims to solve one of the technical problems existing in the prior art.

[0007] The present application provides a rubber sole forming injection molding machine, which comprises a rack, a rotatable table top, a rotary drive device, an injection device and a plurality of injection molds. The injection mold comprises:

[0008] A sliding groove is arranged on the rotatable table top.

[0009] A lower mold core comprising a pair of transverse mold cores and a mold cavity passing through up and down;

[0010] A mold core bottom plate which is liftable and installed in the mold cavity;

[0011] An upper mold core which is liftable and installed above the lower mold core, and has a feeding pipe.

[0012] Further comprising:

[0013] a demolding mechanism for controlling the separation / assembly of each pair of transverse moving cores;

[0014] an adjusting mechanism for controlling the lifting of each core bottom plate in the mold cavity;

[0015] a separating mechanism for controlling the lifting of each upper core;

[0016] wherein the upper core in the blanking position is lifted by the separating mechanism, the corresponding pair of transverse moving cores is separated, the pair of transverse moving cores separated from the blanking position is assembled, and the corresponding upper core is lowered.

[0017] The demolding mechanism comprises:

[0018] a ring-shaped support plate fixedly connected to the bottom of the inner cavity of the frame;

[0019] a slot provided on one side of the top of the ring-shaped support plate, the two ends of which are inclined, and the place is the blanking position;

[0020] a plurality of through slots symmetrically provided at the bottom of each sliding groove corresponding to the ring-shaped support plate;

[0021] a plurality of floating plug-in plates floatingly installed in each through slot, the top end of which is inclined and abuts against the outer side wall of the adjacent transverse moving core away from the mold cavity.

[0022] The demolding mechanism further comprises:

[0023] a plurality of separating springs respectively installed between each group of transverse moving cores through corresponding blind holes.

[0024] The demolding mechanism further comprises:

[0025] a plurality of pairs of limiting protrusions respectively provided on the inner walls of the opposite sides of each sliding groove, which are perpendicular to the corresponding floating plug-in plates;

[0026] a plurality of pairs of limiting sliding grooves for slidingly engaging the two ends of each transverse moving core with the corresponding limiting protrusions.

[0027] The adjusting mechanism comprises:

[0028] a lifting cavity located between the outer peripheral wall of the ring-shaped support plate and the inner peripheral wall of the frame;

[0029] a lifting ring liftable and movably installed in the lifting cavity;

[0030] a lifting control unit for controlling the lifting of the lifting ring;

[0031] a plurality of vertical holes respectively provided at the bottom of each sliding groove;

[0032] a plurality of lifting sliding rods liftable and slidingly installed in the corresponding vertical holes, the bottom end of which slidingly contacts the top surface of the lifting ring, and the top end of which is fixedly connected to the corresponding core bottom plate.

[0033] The adjusting mechanism further comprises:

[0034] a plurality of lifting limiting grooves, which are circumferentially spaced apart on the inner circumferential wall of the frame;

[0035] a plurality of lifting limiting sliders, which are fixedly connected to the circumferential wall of the lifting ring and are in sliding cooperation with the corresponding lifting limiting grooves.

[0036] The lifting control unit comprises:

[0037] a stepped ring groove, which is arranged on the bottom surface of the lifting ring and has an inner side higher than an outer side;

[0038] a plurality of connecting through grooves, which are circumferentially spaced apart on the bottom of the annular support plate;

[0039] a plurality of insertion rods, which are respectively slidably installed in the connecting through grooves and have one end extending into the lifting cavity and abutting against the stepped ring groove;

[0040] a rotating disc, which is rotatably installed at the bottom of the inner cavity of the frame and is driven to rotate by a motor, a worm gear and a worm;

[0041] a plurality of connecting rods, one end of each of which is hingedly connected to the end of the insertion rod away from the lifting cavity, and the other end of each of which is hingedly connected to the circumferential wall of the rotating disc.

[0042] The separating mechanism comprises:

[0043] a plurality of lifting sliding holes, which are spaced apart on the corners of each upper mold core;

[0044] a plurality of lifting limiting rods, which are vertically and fixedly installed on the top of the rotatable table and are in slidable cooperation with the corresponding lifting sliding holes;

[0045] a top plate, which is fixedly installed on the frame by a support column and is located above the rotatable table;

[0046] a guide ring groove, which is arranged on the circumferential wall of the top plate and is upwardly protruded at the corresponding feeding position;

[0047] a plurality of guide sliders, which are respectively fixedly arranged on the outer wall of each feeding pipe and are in slidable cooperation with the guide ring groove.

[0048] A method for operating the injection molding machine is also disclosed, which comprises the following steps:

[0049] S1, adjusting the lifting of the bottom plate of each mold core in the corresponding mold cavity by the adjusting mechanism to adjust the height of the mold cavity;

[0050] S2, rotating the rotatable table under the action of the rotating driving device to make each injection mold pass through the injection device and the feeding position in sequence;

[0051] S3, injecting the molten material into the mold cavity through the corresponding feeding pipe by the injection device;

[0052] S4, the demolding mechanism and the separation mechanism cooperate, so that the upper mold core corresponding to the feeding position rises, and a pair of transverse moving mold cores are separated;

[0053] S5, taking out the molded shoe sole in the mold cavity.

[0054] The beneficial effects of the present application are as follows:

[0055] 1. By arranging the sliding groove, the pair of transverse moving mold cores, the mold cavity, the mold core bottom plate, the upper mold core, the demolding mechanism, the adjusting mechanism and the separation mechanism, the injection mold is moved to the feeding position to realize automatic demolding;

[0056] 2. By arranging the annular support plate, the missing groove, the plurality of through grooves, the plurality of floating plug plates, the plurality of separation springs, the plurality of blind holes, the plurality of pairs of limiting protrusions and the plurality of pairs of limiting sliding grooves, the pair of transverse moving mold cores moved to the feeding position are automatically separated, and the demolding of the shoe sole is facilitated;

[0057] 3. By arranging the lifting cavity, the lifting ring, the plurality of vertical holes, the plurality of lifting sliding rods, the plurality of lifting limiting grooves, the plurality of lifting limiting sliding blocks, the stepped ring groove, the plurality of connecting through grooves, the plurality of plug rods, the rotating disc and the plurality of connecting rods, the positions of the mold core bottom plates in the corresponding mold cavities are adjusted to manufacture shoe soles of different thicknesses;

[0058] 4. By arranging the plurality of lifting sliding holes, the plurality of lifting limiting rods, the top plate, the guide ring groove and the plurality of guide sliding blocks, the upper mold core is automatically raised when being moved to the position corresponding to the feeding position, is separated from the lower mold core, is lowered after being separated from the feeding position, and is folded with the lower mold core, so that the structure is simple, the cost is low, and the demolding efficiency is high. BRIEF DESCRIPTION OF DRAWINGS

[0059] Figure 1 It is a top view of the rubber shoe sole forming injection molding machine in the embodiment of the present application;

[0060] Figure 2 It is Figure 1 A-A direction cross-sectional structure schematic view;

[0061] Figure 3 It is a demolding mechanism structure schematic view in the embodiment of the present application

[0062] Figure 4 It is Figure 2 B-B direction cross-sectional structure schematic view;

[0063] Figure 5 It is Figure 2 C-C direction cross-sectional structure schematic view;

[0064] Figure 6 It is Figure 2 A local enlarged structure schematic view at D in the embodiment of the present application.

[0065] REFERENCE NUMERALS

[0066] 1-frame, 2-rotatable table, 3-rotation driving device, 31-annular gear, 32-gear wheel, 33-transmission belt, 34-connection slot, 35-rotation shaft, 4-injection device, 41-bracket, 42-accumulator, 43-lifting cylinder, 44-feeding nozzle, 45-connection hose, 5-injection mold, 51-sliding slot, 52-transverse moving mold core, 53-mold cavity, 54-mold core bottom plate, 55-upper mold core, 56-feeding pipe, 6-demolding mechanism, 61-annular support plate, 62-missing slot, 63-through slot, 64-floating insertion plate, 65-separation spring, 66-limiting protrusion, 7-adjusting mechanism, 71-lifting cavity, 72-lifting ring, 73-lifting control unit, 731-stepped ring slot, 732-connection through slot, 733-insertion rod, 734-rotary disc, 735-worm wheel, 736-worm, 737-connection rod, 74-vertical hole, 75-lifting sliding rod, 76-lifting limiting slot, 77-lifting limiting sliding block, 8-separation mechanism, 81-lifting sliding hole, 82-lifting limiting rod, 83-top plate, 84-guiding ring slot, 85-guiding sliding block. DETAILED DESCRIPTION

[0067] The technical solutions in the embodiments of the present application will be clearly described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only some of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by a person of ordinary skill in the art belong to the scope of protection of the present application.

[0068] The terms "first", "second", and the like in the specification and claims of the present application are used to distinguish similar objects, and are not used to describe a specific order or sequence. It should be understood that the data used in this way can be interchanged under appropriate circumstances, so that the embodiments of the present application can be implemented in an order other than those illustrated or described herein, and the objects distinguished by "first", "second", etc. are generally a category and do not limit the number of objects, for example, the first object can be one or more. In addition, "and / or" in the specification and claims indicates at least one of the connected objects, and the character " / ", generally indicates that the front and rear associated objects are in an "or" relationship.

[0069] The server provided by the embodiments of the present application will be described in detail below with reference to the drawings and specific embodiments and their application scenarios.

[0070] Embodiment 1:

[0071] As Figures 1 to 6As shown, the embodiment of the present application provides a rubber sole forming injection molding machine, which comprises a rack 1, a rotatable table 2, a rotary drive device 3, an injection device 4 and a plurality of injection molds 5. The injection mold 5 comprises a sliding groove 51 arranged on the rotatable table 2, a lower mold core comprising a pair of transverse moving mold cores 52 and an upper and lower through mold cavity 53, a mold core bottom plate 54 which is installed in the mold cavity 53 and can be lifted, and an upper mold core 55 which is installed above the lower mold core and has a feeding pipe 56.

[0072] Further, it also comprises a demolding mechanism 6 for controlling the separation / folding of each pair of transverse moving mold cores 52, an adjusting mechanism 7 for controlling the lifting of each mold core bottom plate 54 in the mold cavity 53, and a separation mechanism 8 for controlling the lifting of each upper mold core 55. The upper mold core 55 in the discharging position is lifted under the action of the separation mechanism 8, and the corresponding pair of transverse moving mold cores 52 is separated. The pair of transverse moving mold cores 52 in the discharging position is folded, and the corresponding upper mold core 55 is lowered.

[0073] Meanwhile, an operation method is disclosed, which comprises the following steps:

[0074] S1, adjusting the lifting of each mold core bottom plate 54 in the corresponding mold cavity 53 by the adjusting mechanism 7 to adjust the height of the mold cavity 53;

[0075] S2, rotating the rotatable table 2 under the action of the rotary drive device 3 so that each injection mold 5 passes through the injection device 4 and the discharging position in turn;

[0076] S3, injecting the molten material into the mold cavity 53 through the corresponding feeding pipe 56 by the injection device 4;

[0077] S4, cooperating the demolding mechanism 6 and the separation mechanism 8 to lift the upper mold core 55 in the discharging position and separate the pair of transverse moving mold cores 52;

[0078] S5, taking out the formed sole in the mold cavity 53.

[0079] In this embodiment of the application, due to the above-described structure, the rotatable table 2 rotates intermittently in a fixed direction under the drive of the rotary drive device 3, causing each injection mold 5 to cyclically move between the injection device 4 and the unloading position. When the injection mold 5 corresponds to the injection device 4, the corresponding transverse mold cores 52 close together, the upper mold core 55 closes with a pair of transverse mold cores 52, the mold cavity 53 is sealed, the injection device 4 operates, injecting material into the feed pipe 56, and the material flows into the mold cavity 53 through the feed pipe 56. When the injection mold 5 is in the unloading position, the demolding mechanism 6 and the separation mechanism 8 operate simultaneously, causing the upper mold core 55 to close with a pair of transverse mold cores 52. When the transverse mold cores 52 are separated, the pair of transverse mold cores 52 can be separated from each other, and the worker can take the sole out of the mold cavity 53. After the unloading and injection molding are completed, the rotating table 2 continues to rotate under the drive of the rotary drive device 3, so that the next injection mold 5 to be unloaded moves to the position corresponding to the unloading position, and the next injection mold 5 to be injected moves to the position corresponding to the injection device 4. The rotary drive device 3 then stops. When the injection mold 5 that has completed unloading leaves the unloading position, the demolding mechanism 6 and the separation mechanism 8 reset, so that the pair of transverse mold cores 52 close together, and the lower mold core closes with the pair of transverse mold cores 52, so that the mold cavity 53 is sealed.

[0080] The position of the mold core plate 54 in the mold cavity 53 is adjusted by adjusting the adjustment mechanism 7 to adjust the thickness of the injection-molded shoe sole.

[0081] Example 2:

[0082] like Figures 1 to 6 As shown, in this embodiment, in addition to the structural features of the aforementioned embodiments, the demolding mechanism 6 includes an annular support plate 61, which is fixed to the bottom of the inner cavity of the frame 1; a notch 62, which is provided on one side of the top of the annular support plate 61, with both ends inclined, which is the material feeding position; a plurality of through slots 63, which are symmetrically provided at the bottom of each sliding slot 51, corresponding to the annular support plate 61; and a plurality of floating insert plates 64, which can be floatingly installed in each through slot 63, with the top end inclined and abutting against the outer wall of the adjacent transverse mold core 52 away from the mold cavity 53.

[0083] Furthermore, the demolding mechanism 6 also includes several separation springs 65, which are installed between each group of transverse mold cores 52 through corresponding blind holes.

[0084] Furthermore, the demolding mechanism 6 also includes multiple pairs of limiting protrusions, which are respectively set on the inner walls of opposite sides of each sliding groove 51 and perpendicular to the corresponding floating insert plate 64; multiple pairs of limiting sliding grooves 67 are used to make the two ends of each transverse mold core 52 slide in cooperation with the corresponding limiting protrusions.

[0085] Further, the rotating driving device 3 comprises a motor, a gear ring 31, a gear 32 and a transmission belt 33. The gear ring 31 is arranged at the bottom of the rotatable table 2 and is in sliding contact with the inner circumferential wall of the frame 1. The gear 32 is rotatably arranged in the annular support plate 61 through a connecting groove 34 and a rotating shaft 35 and is in engagement with the gear ring 31. The output shaft of the motor is in driving connection with the rotating shaft 35 through the transmission belt 33.

[0086] In this embodiment of the present application, when the injection mold 5 moves to the unloading position, the elastic potential energy of the separating spring 65 between the pair of horizontal moving mold cores 52 is released to push the pair of horizontal moving mold cores 52 apart. The inclined top end of the pair of floating inserts 64 is pushed by the side wall of the corresponding horizontal moving mold core 52, descends in the through groove 63 and abuts against the bottom of the bottom-end missing groove 62, so that the pair of horizontal moving mold cores 52 are separated.

[0087] After the demolding is completed, the motor corresponding to the gear ring 31, the gear 32 and the transmission belt 33 is actuated to drive the rotatable table 2 to rotate, so that the demolded injection mold 5 is moved away from the missing groove 62. In this process, each floating insert 64 slides from the missing groove 62 to the top surface of the annular support plate 61. In this process, each floating insert 64 rises to push the pair of horizontal moving mold cores 52 to close, and each separating spring 65 is compressed and shortened.

[0088] When each horizontal moving mold core 52 slides in the corresponding sliding groove 51, it will not be separated from the sliding groove 51 due to the cooperation of the corresponding limiting sliding groove 67 and the limiting convex rib.

[0089] Embodiment 3:

[0090] As shown in Figures 4 to 6 In this embodiment, in addition to the structural features of the foregoing embodiments, the adjusting mechanism 7 comprises a lifting cavity 71 located between the outer circumferential wall of the annular support plate 61 and the inner circumferential wall of the frame 1, a lifting ring 72 which is liftable and movably arranged in the lifting cavity 71, a lifting control unit 73 for controlling the lifting of the lifting ring 72, a plurality of vertical holes 74 respectively arranged at the bottom of each sliding groove 51, and a plurality of lifting sliding rods 75 which are liftable and slidably arranged in the corresponding vertical holes 74, the bottom end of each lifting sliding rod 75 being in sliding contact with the top surface of the lifting ring 72 and the top end being fixedly connected with the corresponding mold core bottom plate 54.

[0091] Further, the adjusting mechanism 7 further comprises a plurality of lifting limiting grooves 76 which are circumferentially and spacedly arranged on the inner circumferential wall of the frame 1, and a plurality of lifting limiting sliding blocks 77 which are fixedly connected with the circumferential wall of the lifting ring 72 and are in sliding cooperation with the corresponding lifting limiting grooves 76.

[0092] Further, the lifting control unit 73 comprises a stepped ring groove 731 arranged on the bottom surface of the lifting ring 72, the inner side of which is higher than the outer side; a plurality of connecting through grooves 732 arranged on the bottom of the annular support plate 61 at intervals in the circumferential direction; a plurality of insertion rods 733 respectively slidably installed in each connecting through groove 732, one end of each insertion rod 733 extending into the lifting cavity 71 and abutting against the stepped ring groove 731; a rotating disc 734 rotatably installed at the bottom of the inner cavity of the rack 1, driven to rotate by a motor, a worm gear 735 and a worm shaft 736; and a plurality of connecting rods 737, one end of each connecting rod 737 hingedly connected to the end of each insertion rod 733 away from the lifting cavity 71, and the other end of each connecting rod 737 hingedly connected to the circumferential wall of the rotating disc 734.

[0093] In this embodiment of the present application, when the position of the mold core bottom plate 54 in the mold cavity 53 needs to be adjusted, the motor corresponding to the worm gear 735 and the worm shaft 736 is actuated to drive the rotating disc 734 to rotate forward or reverse, drive each connecting rod 737 to act, push or pull the corresponding insertion rod 733, move the corresponding insertion rod 733 into or out of the lifting cavity 71, control the lifting ring 72 to rise or fall in cooperation with the stepped ring groove 731, make each lifting slide rod 75 and the corresponding mold core bottom plate 54 rise or fall, reduce or increase the volume of the mold cavity 53, and reduce or increase the thickness of the sole obtained by injection molding. During the lifting of the lifting ring 72, each lifting limiting groove 76 and the corresponding lifting limiting block can only be lifted in the vertical direction, and each lifting limiting groove 76 and each lifting limiting block are vertically arranged.

[0094] Embodiment 4:

[0095] As shown in Figures 1 to 2 In this embodiment, in addition to the structural features of the foregoing embodiments, the separation mechanism 8 comprises a plurality of lifting slide holes 81 arranged at intervals at the corners of each upper mold core 55; a plurality of lifting limiting rods 82 vertically and fixedly installed on the top of the rotatable table 2 and slidably matched with the corresponding lifting slide holes 81; a top plate 83 fixedly installed on the rack 1 by a support and located above the rotatable table 2; a guide ring groove 84 arranged on the circumferential wall of the top plate 83 and protruding upward corresponding to the feeding position; and a plurality of guide sliding blocks 85 respectively fixedly arranged on the outer walls of the feeding pipes 56 and slidably matched with the guide ring groove 84.

[0096] Further, the injection molding device 4 comprises a support 41, a storage tank 42, a lifting cylinder 43, a feeding nozzle 44 and a connecting hose 45. The support 41 is fixedly connected to the top plate 83, the lifting cylinder 43 and the storage tank 42 are installed on the top of the support 41, the feeding nozzle 44 is installed on the piston end of the lifting cylinder 43 and can be inserted into the upper end of the feeding pipe 56, and the storage tank 42 is connected to the feeding nozzle 44 through the connecting hose 45.

[0097] In this embodiment of the present application, due to the above-mentioned structure, when the upper mold core 55 moves to the corresponding feeding position, the corresponding guide slider 85 moves to the upward protruding position of the guide ring groove 84, at this time, the upper mold core 55 rises along the corresponding lifting limiting rod 82 and separates from the corresponding transverse moving mold core 52, when the upper mold core 55 is separated from the feeding position, the corresponding guide slider 85 leaves the upward protruding position of the guide ring groove 84, so that the upper mold core 55 is lowered and folded with the corresponding transverse moving mold core 52;

[0098] The storage tank 42 has a heating function, and the material inside is kept in a molten state. When the injection molding operation is performed, the cylinder is actuated to lower the feeding nozzle 44 and insert it into the feeding pipe 56, so that the material in the heating tank enters the feeding pipe 56 through the hose and the feeding nozzle 44.

[0099] It should be noted that in this document, the terms "comprise", "comprising", or any other variant thereof are intended to cover non-exclusive inclusions, so that processes, methods, articles, or devices that include a series of elements not only include those elements, but also include other elements not explicitly listed, or inherent to such processes, methods, articles, or devices. Without more limitations, the element defined by the statement "comprising a" does not exclude the presence of other identical elements in the process, method, article, or device that includes the element. In addition, it should be pointed out that the scope of the methods and devices in the embodiments of the present application is not limited to the order of performing the functions shown or discussed, but can also include performing the functions in a substantially simultaneous manner or in reverse order, for example, the described method can be performed in an order different from that described, and various steps can also be added, omitted, or combined. In addition, the features described with reference to certain examples can be combined in other examples.

[0100] The embodiments of the present application are described above in combination with the drawings, but the present application is not limited to the above-mentioned specific embodiments, the above-mentioned specific embodiments are only illustrative, not restrictive, and those skilled in the art can make many forms under the inspiration of the present application without departing from the scope of the present application and the scope protected by the claims.

Claims

1. A rubber shoe sole molding injection machine, comprising a frame (1), a rotatable table (2), a rotary drive device (3), an injection molding device (4), and a plurality of injection molds (5), characterized in that, The injection mold (5) includes: A sliding groove (51) is provided on the rotatable platform (2); The lower mold core includes a pair of transverse mold cores (52) and a mold cavity (53) that runs vertically through the mold core. A mold core base plate (54) is vertically and vertically installed in the mold cavity (53); The upper mold core (55) is vertically mounted above the lower mold core and has a feed pipe (56). Also includes: Demolding mechanism (6), which is used to control the separation / closing of each pair of transverse mold cores (52); Adjustment mechanism (7) is used to control the raising and lowering of each of the mold core base plates (54) in the mold cavity (53); Separation mechanism (8), which is used to control the lifting and lowering of each of the upper mold cores (55); Among them, the upper mold core (55) located at the unloading position rises under the action of the separation mechanism (8), the corresponding pair of transverse mold cores (52) separate, the pair of transverse mold cores (52) that are separated from the unloading position close together, and the corresponding upper mold core (55) descends. The demolding mechanism (6) includes: An annular support plate (61) is fixed to the bottom of the inner cavity of the frame (1); A notch (62) is provided on one side of the top of the annular support plate (61), with both ends inclined, which is the material feeding position; Several through slots (63) are symmetrically arranged at the bottom of each sliding slot (51), corresponding to the annular support plate (61); Several floating inserts (64) are floatably mounted in each of the said through slots (63), with their tops tilted and abutting against the outer side wall of the adjacent transverse mold core (52) away from the mold cavity (53).

2. The rubber shoe sole molding injection machine according to claim 1, characterized in that, The demolding mechanism (6) further includes: Several separation springs (65) are installed between each group of transverse mold cores (52) through corresponding blind holes.

3. The rubber shoe sole molding injection machine according to claim 1, characterized in that, The demolding mechanism (6) further includes: Multiple pairs of restrictive protrusions are respectively set on the inner wall of each sliding groove (51) on the opposite side, perpendicular to the corresponding floating insert (64); Multiple pairs of limiting grooves (67) are used to allow the two ends of each transverse mold core (52) to slide into the corresponding limiting protrusion.

4. The rubber shoe sole molding injection machine according to claim 1, characterized in that, The adjustment mechanism (7) includes: The lifting cavity (71) is located between the outer peripheral wall of the annular support plate (61) and the inner peripheral wall of the frame (1); A lifting ring (72) is movably installed in the lifting cavity (71); A lifting control unit (73) is used to control the lifting ring (72) to rise and fall; Several vertical holes (74) are respectively provided at the bottom of each of the sliding grooves (51); Several lifting slide bars (75) are installed in the corresponding vertical holes (74) and can be raised and lowered. The bottom end slides in contact with the top surface of the lifting ring (72) and the top end is fixedly connected to the corresponding mold core base plate (54).

5. A rubber shoe sole molding injection machine according to claim 4, characterized in that, The adjustment mechanism (7) further includes: Several lifting limiting slots (76) are arranged circumferentially on the inner peripheral wall of the frame (1); Several lifting limit sliders (77) are fixed to the peripheral wall of the lifting ring (72) and slide in cooperation with the corresponding lifting limit grooves (76).

6. A rubber shoe sole molding injection machine according to claim 4, characterized in that, The lifting control unit (73) includes: A stepped annular groove (731) is provided on the bottom surface of the lifting ring (72), with the inner side being higher than the outer side; Several connecting slots (732) are spaced circumferentially at the bottom of the annular support plate (61); Several insert rods (733) are slidably installed in each of the connecting through slots (732), with one end extending into the lifting cavity (71) and abutting against the stepped ring groove (731); A turntable (734) is rotatably mounted at the bottom of the inner cavity of the frame (1) and is driven to rotate by a motor, a worm gear (735) and a worm (736); Several connecting rods (737) have one end hinged to the end of each of the aforementioned insert rods (733) away from the lifting cavity (71), and the other end hinged to the peripheral wall of the turntable (734).

7. A rubber shoe sole molding injection machine according to claim 1, characterized in that, The separation mechanism (8) includes: A number of lifting sliding holes (81) are spaced out at the corners of each of the upper mold cores (55); Several lifting limit rods (82) are vertically and fixedly installed on the top of the rotatable table (2), and can slide in cooperation with the corresponding lifting slide holes (81); The top plate (83) is fixedly mounted on the frame (1) by a support column and is located above the rotatable table (2); A guide ring groove (84) is provided on the peripheral wall of the top plate (83) and protrudes upward at the corresponding material feeding position; Several guide sliders (85) are fixed on the outer wall of each feed pipe (56) and slide in cooperation with the guide ring groove (84).

8. An operating method suitable for a rubber shoe sole molding injection molding machine according to claim 1, characterized in that, Includes the following steps: S1. Adjust the height of each mold core base plate (54) in the corresponding mold cavity (53) by adjusting the adjustment mechanism (7); S2. The rotatable table (2) rotates under the action of the rotary drive device (3), so that each injection mold (5) passes through the injection device (4) and the unloading position in sequence; S3, The injection molding device (4) injects molten material into the mold cavity (53) through the corresponding feed pipe (56); S4, the demolding mechanism (6) and the separation mechanism (8) work together to raise the upper mold core (55) at the corresponding unloading position and separate a pair of transverse mold cores (52); S5. Remove the molded shoe sole from the mold cavity (53).

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