A molding die for rubber boots with liner socks and its molding process

Abstract

This application discloses a molding die for rubber boots with linings and its molding process, relating to the field of rubber boot processing. It includes a left mold, a right mold, a partition mold, a bottom mold, and a lining feeding mechanism. The lining feeding mechanism includes an upper mold base and a last body, the last body being horizontally slidably connected to the lower end of the upper mold base, with positioning ribs along the circumferential direction on the upper part of the outer wall of the last body. Both the left and right molds are slidably disposed below the upper mold base, and positioning grooves are provided on the inner walls of the cavities of the left and right molds. The partition mold is horizontally and vertically slidably disposed below the upper mold base, located below the left and right molds, and has a glue inlet corresponding to the position of the boot's inner sole. The bottom mold is vertically slidably disposed below the upper mold base, located below the partition mold. The process includes lining feeding, initial mold closing, initial molding, secondary mold closing, secondary molding, and secondary mold opening. This mold and process enable lining feeding with high production efficiency.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of rubber boots processing, in particular to a rubber boot forming die with socks and a forming process thereof. BACKGROUND

[0002] A rubber boot is a kind of shoes with a slightly cylindrical upper and a height above the ankle, which is usually composed of a boot body, a boot sole and a sock. In some special working environments, such as industrial and mining working environments, some protective measures are added to the conventional rubber boots. For example, in order to prevent the toes and insteps from being hit by heavy objects in industrial and mining working environments, steel packs and anti-impact insteps can be respectively built in the areas corresponding to the toes and insteps of the rubber boots. The steel packs are mainly used to prevent the toes from being injured by heavy objects, and the anti-impact insteps are mainly used to prevent the insteps from being injured by heavy objects.

[0003] The production of conventional rubber boots relies on labor-intensive production lines. That is, on a simple production line, workers manually install and position various parts of the rubber boots, such as rubber sheets, socks, steel packs, anti-impact insteps, soles, etc. on a shoe last, and then paste them to form a rubber boot. Finally, the rubber boot is vulcanized in a vulcanizing tank to form the final product. However, this traditional rubber boot production requires a large amount of manpower and material resources, and the production efficiency is low. Moreover, the operation level of the operators varies, resulting in many product defects and poor product consistency.

[0004] Therefore, how to improve the traditional rubber boot production line to overcome the above-mentioned shortcomings is a technical problem to be solved by those skilled in the art. SUMMARY

[0005] One object of the present application is to provide a rubber boot forming die with socks and a forming process thereof, which can realize sock feeding and has high production efficiency.

[0006] Another object of the present application is to provide a rubber boot forming die with socks and a forming process thereof, which can realize steel pack and anti-impact instep feeding.

[0007] To achieve the above object, the technical scheme adopted by the present application is as follows: a rubber boot forming mold with socks, comprising a left mold, a right mold, an isolation mold, a bottom mold and a sock feeding mechanism; the sock feeding mechanism comprises an upper mold base and a last body for sleeving the socks, the last body is horizontally and slidingly connected to the lower end of the upper mold base, the outer wall upper part of the last body is provided with a positioning rib in the circumferential direction, the distance between the upper and lower sides of the positioning rib gradually decreases in the direction away from the last body, and the upper and lower sides of the positioning rib are connected to the outer side thereof through a circular arc transition; the left mold and the right mold are both slidingly arranged below the upper mold base, and the inner walls of the cavities of the left mold and the right mold are both formed with positioning grooves for adapting the positioning rib; the isolation mold is slidingly arranged below the upper mold base and can slide up and down, and the isolation mold is located below the left mold and the right mold; the isolation mold, the left mold, the right mold and the last body are used for forming the boot body and the insole, the isolation mold is provided with a rubber inlet corresponding to the position of the insole; the bottom mold is slidingly arranged below the upper mold base and can slide up and down, and the bottom mold is located below the isolation mold, the bottom mold and the isolation mold are used for forming the outsole; when the isolation mold is removed and the bottom mold is combined with the left mold and the right mold, the outsole and the insole are vulcanized and formed.

[0008] Preferably, the lower surface of the upper mold base is provided with a sliding groove, the upper end of the last body is provided with a sliding block, and the sliding block is slidingly connected to the sliding groove; the upper mold base is provided with a pushing member for pushing the sliding block to the end of the sliding groove; the rubber boot forming mold with socks further comprises a sock mounting assembly; the sock mounting assembly comprises a stand and a sock sleeve, the sock sleeve is vertically arranged on the stand, the size of the sock sleeve is larger than that of the last body, and the upper end of the sock sleeve is used for tensioning and fixing the turned-up sock opening of the sock; the sock feeding mechanism further comprises a transfer assembly, the transfer assembly is arranged between the upper mold base and the stand, the transfer assembly is used for clamping and moving the sliding block horizontally and vertically, and the transfer assembly is provided with a pushing member for pushing the sliding block to the inside of the sliding groove.

[0009] Preferably, the sliding groove comprises an upper rectangular groove, an inverted trapezoidal groove and a lower rectangular groove connected in sequence from top to bottom; the sliding block comprises an upper rectangular section, an inverted trapezoidal section and a lower rectangular section connected in sequence from top to bottom; the upper rectangular section is slidingly connected to the upper rectangular groove, the inverted trapezoidal section is slidingly connected to the inverted trapezoidal groove, and the lower rectangular section is slidingly connected to the lower rectangular groove; the gap D between the side surface of the upper rectangular section and the inner side surface of the upper rectangular groove is greater than the gap d between the side surface of the lower rectangular section and the side surface of the lower rectangular groove, and the height difference H between the upper end surface of the upper rectangular section and the inner top part of the upper rectangular groove is greater than or equal to the height h of the lower rectangular section.

[0010] Preferably, the sock mounting assembly further comprises a frame, which is horizontally and slidingly connected to the stand; the number of the last bodies and the sock tubes is two; the two last bodies are symmetrically arranged in front of and behind each other and are fixed to the same sliding block at intervals; the two sock tubes are symmetrically arranged in front of and behind each other and are slidingly connected to the frame.

[0011] Preferably, the socked rubber boot forming die further comprises a steel pack mounting assembly; the steel pack mounting assembly comprises a sliding frame and two positioning blocks; the sliding frame is slidingly connected to the stand along the direction of approaching or moving away from the toe of the last body, and the sliding frame is located below the sock tube; the two positioning blocks are symmetrically arranged on the sliding frame in front of and behind each other, and the positioning blocks are provided with first positioning grooves for fitting the steel pack; the toe of the last body is provided with a positioning part for positioning the steel pack, and when the steel pack in the first positioning groove is aligned with the toe of the last body, the sliding frame moves towards the last body to fit the steel pack to the positioning part.

[0012] Preferably, the steel pack mounting assembly further comprises a first locking member, which is arranged on the positioning block and is used for locking the steel pack in the first positioning groove.

[0013] Preferably, the socked rubber boot forming die further comprises an anti-kicking toe mounting assembly; the anti-kicking toe mounting assembly comprises a turnover member, two turnover blocks and a second locking member; the turnover member comprises a turnover arm, a sleeve, a first spring and an abutting member; one end of the turnover arm is rotatably arranged on the sliding frame, the other end of the turnover arm is slidingly connected in the sleeve, and the first spring is arranged between the turnover arm and the sleeve; the two turnover blocks are symmetrically arranged on the sleeve in front of and behind each other, and the turnover blocks are provided with second positioning grooves for fitting the anti-kicking toe; the two second locking members are respectively arranged on the two turnover blocks, and the second locking members are used for locking the anti-kicking toe in the corresponding second positioning groove; the inner side of the anti-kicking toe close to the steel pack is provided with an avoiding groove for avoiding the positioning part and a clamping groove for clamping the steel pack, and the abutting member is arranged on the stand; in the movement process of the sliding frame towards the last body, the anti-kicking toe in the second positioning groove first passes through the toe of the last body, and when the anti-kicking toe is moved into place, the sleeve abuts against the abutting member, and the sliding frame continues to move towards the last body, and when the steel pack is fitted to the positioning part, the steel pack is clamped in the clamping groove.

[0014] Preferably, the sleeve is provided with a through hole in the axial direction; the turnover member further comprises an adjusting rod, one end of the adjusting rod penetrates through the through hole and is then threadedly connected to the turnover arm, and the other end of the adjusting rod is provided with a limiting part with a size larger than the through hole.

[0015] Preferably, the anti-kicking sole mounting assembly further comprises a turnover driving member, the turnover driving member comprising a driving motor, a worm and a worm wheel; the driving motor is mounted on the sliding frame, the worm and the worm wheel are rotatably mounted on the sliding frame, the worm is connected with the output shaft of the driving motor, and the worm is engaged with the worm wheel; the turnover arm is connected with the worm wheel along the radial direction of the worm wheel; the sleeve is provided with a positioning column, and the positioning column is used for positioning the anti-kicking sole by abutting against the sliding frame.

[0016] Preferably, the last body is internally provided with a containing cavity, the positioning part is slidingly connected to the containing cavity, and the positioning part can be slid to be hidden inside the containing cavity; the upper surface of the sliding block is provided with an oil storage cavity which is communicated with the containing cavity, a plunger is slidingly connected in the oil storage cavity, a cover plate is connected to the upper end of the oil storage cavity, an opening is vertically provided in the cover plate, and a second spring is arranged between the cover plate and the plunger; the transfer assembly is provided with a negative pressure pipe which is used for movably abutting against the opening; the upper die seat is provided with a telescopic ejector rod, when the last body is clamped, the telescopic ejector rod is elongated through the opening to abut against the plunger.

[0017] In another aspect, the application further provides a forming process of a rubber boot forming mold with a lining sock, which is applied to the rubber boot forming mold with a lining sock as described above, and the process comprises the following steps:

[0018] Lining sock feeding: in the open mold state, the sliding block is pushed to the end of the sliding groove by the pushing member; then, the sliding block is clamped by the transfer assembly and transferred from the end of the sliding groove to above the socking tube, so that the last body is aligned with the socking tube, the transfer assembly then drives the sliding block to move vertically downward, the last body passes through the socking tube downward, so that the lining sock fixed on the socking tube is sleeved on the last body; finally, the transfer assembly drives the sliding block to move vertically upward, the last body with the lining sock is separated from the socking tube, the sliding block is then driven to slide into the sliding groove again, and then the sliding block is pushed into the sliding groove again by the pushing member;

[0019] Primary clamping: after the left die and the right die move towards each other to complete clamping, the isolation die first slides horizontally to the position directly below the last body and then slides upward to complete clamping with the left die and the right die; finally, the bottom die loaded with raw materials moves upward to complete clamping with the isolation die;

[0020] Primary forming: melt glue is injected through the glue inlet on the isolation die, and after cooling and forming, a boot body and an insole are formed between the isolation die, the left die, the right die and the last body, and the inner side of the boot body and the insole is bonded with the lining sock; the raw materials between the bottom die and the isolation die form an outsole under the extrusion action;

[0021] Firstly, the bottom mold is driven to move downwards to complete the demolding between the bottom mold and the spacer mold, and the spacer mold is driven to move downwards to complete the demolding between the spacer mold and the last body, and then the spacer mold is driven to slide horizontally to the outside of the bottom mold;

[0022] Secondly, the bottom mold is driven to move upwards to complete the molding between the bottom mold and the left mold and the right mold;

[0023] Secondly, the bottom mold is driven to move upwards to complete the molding between the bottom mold and the left mold and the right mold;

[0024] Secondly, the bottom mold is driven to move upwards to complete the molding between the bottom mold and the left mold and the right mold;

[0025] Compared with the prior art, the application has the following advantages:

[0026] (1) The application sets the split structure of the left mold and the right mold, so that the last body can slide to the outside of the left mold and the right mold along the upper mold base, thereby facilitating the sleeving of the sock on the last body. When the molds are closed, the last body slides to between the left mold and the right mold, and then the left mold and the right mold are driven to move towards each other to complete the molding between the left mold, the right mold and the last body. Then, the spacer mold is first horizontally moved to be directly below the last body, and then is driven to move upwards to complete the molding with the left mold and the right mold. Finally, the bottom mold is driven to move upwards to complete the molding with the spacer mold (the raw material of the formed outsole needs to be added into the cavity of the bottom mold before the bottom mold moves upwards). During the molding, the molten glue is injected between the spacer mold and the last body through the glue inlet on the spacer mold, and the boot body and the insole are formed between the spacer mold, the left mold, the right mold and the last body after cooling. In addition, after the bottom mold and the spacer mold are molded, the raw material in the cavity of the bottom mold is extruded to form the outsole. Then, the bottom mold is controlled to move downwards to complete the demolding with the spacer mold, and the spacer mold is controlled to move downwards to complete the demolding with the left mold, the right mold and the last body. Then, the spacer mold is controlled to slide horizontally to the outside of the bottom mold. At this time, the bottom mold is controlled to move upwards to complete the molding with the left mold, the right mold and the last body, and the outsole and the insole are vulcanized and formed through the vulcanization process. Finally, after the bottom mold, the left mold and the right mold are opened again, the finished product rubber boots can be taken out. When the last body slides to the outside of the left mold and the right mold, the finished product rubber boots can also be taken out.

[0027] (2) During the molding process of the left mold and the right mold moving towards each other to complete the molding with the last body, the positioning ribs on the outer periphery of the last body can be positioned and matched with the positioning grooves in the cavities of the left mold and the right mold, thereby ensuring the high-precision cooperation between the left mold, the right mold and the last body.

[0028] (3) Since the sock is directly sleeved on the last body, that is, there is no fixing structure between the sock and the last body; therefore, the glue inlet is arranged on the isolation mold at the position corresponding to the last body, that is, the glue inlet corresponds to the outer bottom of the last body sleeved with the sock, so that the injected high-pressure glue flows upward from the outer bottom of the sock, thereby avoiding the wrinkles of the sock caused by the flow pressure of the glue. For example, if the glue is injected from the side or the upper end of the left mold and the right mold, the flow pressure of the injected glue will push the sock downward, thereby causing the wrinkles of the sock, and finally affecting the flatness of the sock during molding. BRIEF DESCRIPTION OF DRAWINGS

[0029] Figure 1 A perspective view of a rubber boot forming mold with a sock provided by the application.

[0030] Figure 2 A perspective view of a rubber boot forming mold with a sock provided by the application. Figure 1 A front view of a partial structure.

[0031] Figure 3 A perspective view of a rubber boot forming mold with a sock provided by the application. Figure 1 An enlarged view of a partial structure.

[0032] Figure 4 A perspective view of a rubber boot forming mold with a sock provided by the application. Figure 3 A front view of a partial structure.

[0033] Figure 5 A perspective view of a rubber boot forming mold with a sock provided by the application. Figure 4 An enlarged view of a partial structure at I.

[0034] Figure 6 A perspective view of a rubber boot forming mold with a sock provided by the application. Figure 3 An enlarged view of a partial structure of the last body.

[0035] Figure 7 A structure schematic view of a steel bucket and a kick-proof sole provided by the application.

[0036] Figure 8 A structure schematic view of a steel bucket and a kick-proof sole provided by the application. Figure 7 Another view of the kick-proof sole.

[0037] Figure 9 A perspective view of a sock mounting assembly, a steel bucket mounting assembly and a kick-proof sole mounting assembly provided by the application.

[0038] Figure 10 A perspective view of a sock mounting assembly, a steel bucket mounting assembly and a kick-proof sole mounting assembly provided by the application. Figure 9 An enlarged view of the steel bucket mounting assembly and the kick-proof sole mounting assembly.

[0039] Figure 11 A perspective view of a sock mounting assembly, a steel bucket mounting assembly and a kick-proof sole mounting assembly provided by the application. Figure 9 Another state view of each structure, showing a sock replenishment state view.

[0040] Figure 12 Another state diagram of the structures provided in the present application, showing the ladle and the charging state of the kick-plate. Figure 11

[0041] Figure 13 Another state diagram of the structures provided in the present application, showing the ladle and the charging state of the kick-plate. Figure 12

[0042] Another state diagram of the structures provided in the present application, showing the ladle and the charging state of the kick-plate. Figure 14 Figure 13 Another state diagram of the structures provided in the present application, showing the ladle and the charging state of the kick-plate.

[0043] Figure 15 Figure 14 Another state diagram of the structures provided in the present application, showing the ladle and the charging state of the kick-plate.

[0044] Figure 16 Another state diagram of the structures provided in the present application, showing the ladle and the charging state of the kick-plate.

[0045] Figure 17 Another state diagram of the structures provided in the present application, showing the ladle and the charging state of the kick-plate. Figure 16

[0046] Another state diagram of the structures provided in the present application, showing the ladle and the charging state of the kick-plate. Figure 18 Figure 17 Another state diagram of the structures provided in the present application, showing the ladle and the charging state of the kick-plate.

[0047] Figure 19 Figure 17 Another state diagram of the structures provided in the present application, showing the ladle and the charging state of the kick-plate.

[0048] ​​​​​In the figure: 1, left die; 11, side die plate; 12, upper locking seat; 13, side locking plate; 2, right die; 3, isolation die; 4, bottom die; 41, lower die seat; 5, sock loading mechanism; 51, upper die seat; 511, sliding groove; 52, last body; 521, positioning rib; 522, sliding block; 523, toe; 524, positioning part; 525, containing cavity; 526, oil storage cavity; 527, plunger; 528, cover plate; 5281, opening; 529, second spring; 6, sock mounting assembly; 61, stand; 62, sock tube; 63, frame; 64, double-threaded rod; 7, ladle mounting assembly; 71, sliding frame; 72, positioning block; 721, first positioning groove; 73, first locking piece; 8, anti-kicking vamp mounting assembly; 81, turnover piece; 811, turnover arm; 812, sleeve; 813, first spring; 814, abutting piece; 815, adjusting rod; 8151, limiting part; 82, turnover block; 821, second positioning groove; 8211, blocking edge; 83, second locking piece; 84, turnover driving piece; 841, driving motor; 842, worm; 843, worm gear; 844, protective cover; 85, positioning column; 100, ladle; 200, anti-kicking vamp; 201, avoiding groove; 202, clamping groove. DETAILED DESCRIPTION

[0049] Hereinafter, the present application will be further described in conjunction with specific embodiments, and it should be noted that the following described embodiments between or between technical features can be combined to form new embodiments without conflict.

[0050] In the description of the present application, it should be noted that for orientation words, such as the terms "center", "transverse", "longitudinal", "length", "width", "thickness", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc. The orientation and positional relationship shown in the drawing is based on the orientation or positional relationship, and is only for the convenience of describing the present application and simplifying the description, and is not intended to indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and cannot be understood as limiting the specific protection scope of the present application. The terms "first", "second", etc. in the specification and claims of the present application are used to distinguish similar objects, and do not necessarily describe a specific order or sequence. The terms "include" and "have" in the specification and claims of the present application and their any variants are intended to cover non-exclusive inclusion, for example, a process, method, system, product or device including a series of steps or units does not necessarily limit to those clearly listed steps or units, but can include other steps or units not clearly listed or inherent to these processes, methods, products or devices.

[0051] Embodiment one: refer to Figures 1 to 4 One embodiment of the present application provides a socked rubber boot forming die, which comprises a left die 1, a right die 2, a spacer die 3, a bottom die 4 and a sock feeding mechanism 5; the sock feeding mechanism 5 comprises an upper die seat 51 and a last body 52 for sleeving a sock, the last body 52 is horizontally and slidingly connected to the lower end of the upper die seat 51, the outer wall upper portion of the last body 52 is provided with a positioning rib 521 in the circumferential direction, the distance between the upper and lower sides of the positioning rib 521 gradually decreases in the direction away from the last body 52, and the upper and lower sides of the positioning rib 521 and the outer side thereof are connected through a circular arc transition; the left die 1 and the right die 2 are both slidingly arranged below the upper die seat 51, and the inner walls of the cavities of the left die 1 and the right die 2 are both formed with positioning grooves for adapting the positioning rib 521; the spacer die 3 is slidingly arranged below the upper die seat 51 and can slide up and down, and the spacer die 3 is located below the left die 1 and the right die 2; the spacer die 3, the left die 1, the right die 2 and the last body 52 are used for forming a boot body and an insole, the spacer die 3 is provided with a rubber inlet at a position corresponding to the insole; the bottom die 4 is slidingly arranged below the upper die seat 51 and can slide up and down, and the bottom die 4 is located below the spacer die 3, and the bottom die 4 and the spacer die 3 are used for forming an outsole; when the spacer die 3 is removed and the bottom die 4 is combined with the left die 1 and the right die 2, the outsole and the insole are vulcanized and formed.

[0052] Working principle: by setting the left die 1 and the right die 2 split structure, so that the last body 52 can slide along the upper die seat 51 to the outside of the left die 1 and the right die 2, so as to facilitate the sock sleeve is connected to the last body 52. When the mold is closed, the last body 52 is re-slid to between the left die 1 and the right die 2, and then the left die 1 and the right die 2 are driven to move towards each other, thereby completing the closing of the left die 1, the right die 2 and the last body 52; then, the isolation die 3 first moves horizontally to the last body 52 below, and then moves upward to complete the closing with the left die 1 and the right die 2; finally, the bottom die 4 moves upward to complete the closing with the isolation die 3 (the bottom die 4 needs to add the raw material of the outer sole of the formed boot to the cavity on the bottom die 4 before moving upward). When forming, the molten glue is injected between the isolation die 3 and the last body 52 through the glue inlet on the isolation die 3, and after cooling, the boot body and the insole are formed between the isolation die 3, the left die 1, the right die 2 and the last body 52; in addition, after the bottom die 4 and the isolation die 3 are closed, the raw material in the cavity of the bottom die 4 will form the outer sole due to extrusion; at this time, the bottom die 4 is controlled to move downward to complete the demolding with the isolation die 3; the isolation die 3 moves downward to complete the demolding with the left die 1, the right die 2 and the last body 52, and then the isolation die 3 is controlled to slide horizontally to the outside of the bottom die 4, at this time, the bottom die 4 moves upward again to complete the closing with the left die 1, the right die 2 and the last body 52, and through the vulcanization process, the outer sole and the insole are vulcanized and formed, finally, after the bottom die 4, the left die 1 and the right die 2 are opened again, the finished product rubber boots can be taken out. When the last body 52 slides to the outside of the left die 1 and the right die 2, it is also convenient to take out the finished product rubber boots.

[0053] Referring to Figure 3 During the closing process of the left die 1 and the right die 2 towards each other to complete the closing with the last body 52, the positioning ribs 521 on the outer periphery of the last body 52 can be positioned and matched with the positioning grooves in the left die 1 and the right die 2, to ensure high-precision matching between the left die 1, the right die 2 and the last body 52. Specifically, since the position corresponding to the positioning rib 521 on the last body 52 is an oval structure (in the top view state), the size of the annular structure of the positioning rib 521 in the front-rear direction is first increased and then decreased from left to right, so that during the movement of the left die 1 and the right die 2 towards each other, the positioning groove pushes the positioning rib 521 to adjust the position in the horizontal direction, and finally the positioning rib 521 is accurately matched in the left-right direction and the front-rear direction. Figure 4 Since the distance between the upper and lower sides of the positioning rib 521 gradually decreases away from the last body 52, during the movement of the left die 1 and the right die 2 towards each other, the positioning groove also realizes extrusion matching with the upper and lower sides (i.e. the inclined surface) of the positioning rib 521, thereby adjusting the position of the last body 52 in the up-down direction, to ensure accurate matching of the last body 52 in the up-down direction.

[0054] It should be noted that since the sock is directly sleeved on the last body 52, that is, there is no fixing structure between the sock and the last body 52; therefore, the present application sets the glue inlet on the isolation mold 3 at a position corresponding to the last body 52, that is, the glue inlet corresponds to the outer bottom of the last body 52 sleeved with the sock, so that the injected high-pressure glue flows gradually upwards from the outer bottom of the sock, thereby avoiding wrinkles of the sock caused by the flow pressure of the glue. For example, if the glue is injected from the side or the upper end of the left mold 1 and the right mold 2, the flow pressure of the injected glue will push the sock downwards, resulting in wrinkles of the sock, which finally affects the flatness of the sock during molding.

[0055] It should be noted that the sliding installation mode of the left mold 1, the right mold 2, the isolation mold 3 and the bottom mold 4 are all prior art in the field, and will not be described in detail here. In addition, in order to realize the locking of the mold in the closed mold state, taking the left side of the left mold 1 as an example: the left side of the left mold 1 is connected with the side mold plate 11, that is, the side mold plate 11 slides synchronously with the left mold 1, and the side locking plate 13 is connected between the side mold plate 11 and the left mold 1 in up-down sliding mode; the left side of the upper mold seat 51 slides in up-down mode, and the upper locking seat 12 is arranged on the left side of the upper mold seat 51; after the left mold 1 and the right mold 2 are closed, the upper locking seat 12 slides downwards, and the inverted trapezoidal block at the lower end of the upper locking seat 12 locks the inverted trapezoidal groove at the upper end of the side mold plate 11; the lower end of the bottom mold 4 is connected with the lower mold seat 41, and the lower mold seat 41 is provided with sliding holes at both ends, which are used to sleeve the lower end of the side mold plate 11 when the bottom mold 4 moves upwards, thereby locking the lower end of the side mold plate 11; at the same time, the trapezoidal block at the upper end of the bottom mold 4 also locks the trapezoidal groove at the lower end of the isolation mold 3, and the trapezoidal block at the upper end of the isolation mold 3 locks the trapezoidal groove at the lower end of the side locking plate 13 during the upward movement of the isolation mold 3, and at the same time, the side locking plate 13 is pushed upwards to slide, so that the inverted trapezoidal groove at the upper end of the side locking plate 13 locks the inverted trapezoidal block at the lower end of the upper mold seat 51.

[0056] Embodiment two: refer to Figures 1 to 4 The difference between embodiment one and embodiment two is that the lower surface of the upper mold seat 51 is provided with a sliding groove 511, the upper end of the last body 52 is provided with a sliding block 522, and the sliding block 522 is connected to the sliding groove 511 in sliding mode; the upper mold seat 51 is provided with a pushing member for pushing the sliding block 522 to the end of the sliding groove 511. Refer to Figure 9 The rubber boot forming mold with a sock further comprises a sock mounting assembly 6; the sock mounting assembly 6 comprises a stand 61 and a sock tube 62, the sock tube 62 is vertically arranged on the stand 61, the size of the sock tube 62 is larger than that of the last body 52, and the upper end of the sock tube 62 is used for tensioning and fixing the turned-up sock cuff of the sock; the sock feeding mechanism 5 further comprises a transfer assembly, which is arranged between the upper mold seat 51 and the stand 61, and is used for clamping and moving the sliding block 522 horizontally and vertically; the transfer assembly is provided with a pushing member for pushing the sliding block 522 into the sliding groove 511.

[0057] It can be understood that the transfer assembly, the pushing member and the pushing member are all prior art, and are not shown in the drawings. Among them, the transfer assembly can be a multi-degree-of-freedom industrial robot, and the adjustment of the gripper of the industrial robot into a clamping structure for clamping the slider 522 is also a conventional technical means in the art, so it will not be described in detail here; the pushing member and the pushing member can be a hydraulic cylinder, a pneumatic cylinder or other existing telescopic mechanism.

[0058] In addition, since the existing technology sock is elastic, only need to put the sock inside the sock tube 62, and hold the sock with both hands, the sock can be fixed temporarily. When the transfer assembly clamps the slider 522 (i.e. the last body 52) moves to the upper part of the sock tube 62, and drives the slider 522 to move vertically downward, the sock can be completed on the last body 52.

[0059] It should be understood that during the process of the sock being fitted on the last body 52, the friction between the sock cuff and the sock tube 62 should be greater than the extrusion force of the last body 52 on the inside of the sock, so as to avoid the last body 52 from being unable to complete the sock to be fitted on the last body 52 when it moves down. There are many ways to ensure that the friction between the sock cuff and the sock tube 62 is greater than the extrusion force of the last body 52 on the inside of the sock, for example, increasing the pipe diameter of the sock tube 62, the greater the pipe diameter, the greater the friction between the sock cuff and the sock tube 62; for example, increasing the length of the sock cuff, that is, the greater the length of the sock cuff fitted on the sock tube 62, the greater the friction between the sock cuff and the sock tube 62, or even fitting the sock on the sock tube 62.

[0060] That is, the present application can complete the fitting of the sock cuff on the sock tube during the process of mold injection molding. After the mold is opened and the finished product rubber boots are taken out, the transfer assembly can be clamped to move the slider 522 above the sock tube 62 and then move downward to complete the fitting and fixing between the sock and the last body 52. At this time, the last body 52 with the sock fitted can be put into the next molding, and the work efficiency is higher. In order to further improve the work efficiency, two sets of last bodies 52 can be used alternately, that is, one set of last body 52 is clamped to the boot taking station after molding to take the boots, and the other set of last body 52 has completed the installation of the sock at the sock installation station. At this time, the transfer assembly can directly clamp the last body 52 with the sock installed to put it into the next molding; the last body 52 after taking the boots at the boot taking station is transferred to the sock installation station to complete the installation of the sock.

[0061] Specifically, the molding process of the rubber boot with sock forming mold includes the following steps:

[0062] Socks loading: in the open mold state, the slider 522 is pushed to the end of the chute 511 by the pusher; then, the slider 522 is clamped by the transfer assembly and transferred from the end of the chute 511 to above the sock tube 62, so that the last body 52 is aligned with the sock tube 62, and then the transfer assembly drives the slider 522 to move vertically downward, so that the last body 52 passes through the sock tube 62 downward, so that the socks fixed on the sock tube are put on the last body 52; finally, the transfer assembly drives the slider 522 to move vertically upward, so that the last body 52 with socks is separated from the sock tube 62, and then the slider 522 is driven to slide into the chute 511 again, and then the slider 522 is pushed into the chute 511 again by the pusher;

[0063] Primary mold closing: after the left mold 1 and the right mold 2 move towards each other to complete mold closing, the isolation mold 3 first slides horizontally to the position directly below the last body 52, and then slides upward to complete mold closing with the left mold 1 and the right mold 2; finally, the bottom mold 4 loaded with raw materials moves upward to complete mold closing with the isolation mold 3;

[0064] Primary forming: melt is injected through the glue inlet on the isolation mold 3, and after cooling and forming, the boot body and the insole are formed between the isolation mold 3, the left mold 1, the right mold 2 and the last body 52, and the inner side of the boot body and the insole is bonded with the socks; the raw materials between the bottom mold 4 and the isolation mold 3 form the outsole under the extrusion action;

[0065] Primary mold opening: the bottom mold 4 is driven to move downward, so that the bottom mold 4 and the isolation mold 3 complete demolding; and the isolation mold 3 is driven to move downward, so that the isolation mold 3 and the last body 52 complete demolding, and then the isolation mold 3 is driven to slide horizontally to the outside of the bottom mold 4;

[0066] Secondary mold closing: the bottom mold 4 is driven to move upward, so that the bottom mold 4 and the left mold 1 and the right mold 2 complete mold closing;

[0067] Secondary forming: the outsole and the insole are connected and formed by vulcanization process;

[0068] Secondary mold opening: first, the bottom mold 4 is driven to move downward, so that the bottom mold 4 and the left mold 1 and the right mold 2 complete demolding, and then the left mold 1 and the right mold 2 are driven to move away from each other to complete mold opening.

[0069] It should be understood that since the injection mold has high precision requirements, the sliding fit precision between the sliding block 522 and the sliding groove 511 also needs to be high in actual process, otherwise, if the precision between the sliding block 522 and the sliding groove 511 is not enough, the positioning rib 521 and the left mold 1 and the right mold 2 are likely to collide, thereby damaging the mold; even if there is no collision, the relative displacement adjustment amount between the positioning rib 521 and the positioning groove is likely to increase, thereby also increasing the daily wear of the mold, so the sliding fit precision between the sliding block 522 and the sliding groove 511 is generally required to be high. However, the requirement of high sliding fit precision increases the difficulty of processing on the one hand; on the other hand, since the application needs to move the sliding block 522 out of the sliding groove 511 through the transfer assembly when installing the sock, and needs to re-install the sliding block 522 into the sliding groove 511 after completing the sock installation, if the precision between the sliding block 522 and the sliding groove 511 is high, the alignment precision between the sliding block 522 and the sliding groove 511 also needs to be increased, otherwise the sliding block 522 may be difficult or unable to slide into the sliding groove 511, especially when an industrial robot is used for operation, the control requirement of the motion precision of the industrial robot is high, which is difficult to guarantee in actual process.

[0070] With reference to Figures 3 to 5 In order to solve the above precision fit problem, in some embodiments of the application, the sliding groove 511 includes an upper rectangular groove, an inverted trapezoidal groove and a lower rectangular groove connected in sequence from top to bottom; the sliding block 522 includes an upper rectangular section, an inverted trapezoidal section and a lower rectangular section connected in sequence from top to bottom; the upper rectangular section is slidingly connected to the upper rectangular groove, the inverted trapezoidal section is slidingly connected to the inverted trapezoidal groove, and the lower rectangular section is slidingly connected to the lower rectangular groove; the gap D between the side surface of the upper rectangular section and the inner side surface of the upper rectangular groove is greater than the gap d between the side surface of the lower rectangular section and the side surface of the lower rectangular groove, and the height difference H between the upper end surface of the upper rectangular section and the top of the upper rectangular groove is greater than or equal to the height h of the lower rectangular section.

[0071] It should be understood that, since the gap D between the upper rectangular segment side surface and the upper rectangular groove inner side surface is larger than the gap d between the lower rectangular segment side surface and the lower rectangular groove side surface, the sliding fit precision between the lower rectangular segment and the lower rectangular groove is higher, and the sliding fit precision between the upper rectangular segment and the upper rectangular groove is lower. Since the height difference H between the upper rectangular segment upper end surface and the upper rectangular groove inner top portion is greater than or equal to the height h of the lower rectangular segment, in the process of loading the sliding block 522 into the sliding groove 511 by the transfer assembly, the upper rectangular segment can be slid into the upper rectangular groove, and the lower rectangular segment remains above the lower rectangular groove. At this time, the gap D between the upper rectangular segment side surface and the rectangular groove inner side surface is larger, thereby reducing the difficulty of the sliding block 522 into the sliding groove 511, that is, reducing the requirement for precision control of the transfer assembly. After the sliding block 522 enters the sliding groove 511 and the transfer assembly releases the sliding block 522, under the action of gravity, the sliding block 522 moves downward along the sliding groove 511, and the inverted trapezoidal groove and the inverted trapezoidal segment play a guiding role, so that the lower rectangular segment smoothly enters the lower rectangular groove, that is, the high-precision fit between the sliding block 522 and the sliding groove 511 is realized. That is, the present application only needs to ensure that the lower rectangular segment and the lower rectangular groove achieve high-precision fit, and does not need to ensure that each contact surface between the entire sliding block 522 and the sliding groove 511 achieves high-precision fit, thereby reducing the difficulty of processing. At the same time, when the sliding block 522 enters the sliding groove 511, the upper rectangular segment and the upper rectangular groove are relatively low-precision sliding fit, thereby reducing the difficulty of the sliding block 522 into the sliding groove 511, that is, the precision control requirement of the transfer assembly is reduced. The specific parameters of the gap D can be determined according to the precision of the selected transfer assembly (such as an industrial robot), so that the parameters of the gap D are greater than the precision of the industrial robot. The specific data of the gap d can be confirmed according to the precision of the selected processing machine tool. In addition, under the action of the height difference H between the upper rectangular segment upper end surface and the upper rectangular groove inner top portion, it is also convenient for the clamping unit (such as the gripper of the industrial robot) on the transfer assembly to extend into the sliding groove 511 to clamp the sliding block 522. Of course, if the height difference H between the upper rectangular segment upper end surface and the upper rectangular groove inner top portion is less than the size of the clamping unit, a gap for the gripper to enter can be added to the top portion of the sliding groove 511, or a pushing piece can be used to push one end of the sliding block 522 out to the outside of the sliding groove 511.

[0072] Referring to Figure 9 and Figure 11 In some embodiments of the present application, the stocking installation assembly 6 further includes a frame 63, the frame 63 being horizontally and slidingly connected to the stand 61; the number of the last bodies 52 and the stocking tubes 62 is two, the two last bodies 52 are symmetrically and spacedly fixed to the same sliding block 522 (such as Figure 3(As shown); the two stocking tubes 62 are symmetrically arranged front and back, and both stocking tubes 62 can be slidably connected to the frame 63. Since the size of the stocking tubes 62 is larger than the size of the last body 52, and the spacing between the two last bodies 52 cannot be designed to be very large in the mold design, the impact on the mold size must also be considered. This results in a relatively small spacing between the two stocking tubes 62 when they are fitted with the two last bodies 52. However, when the liner is manually fitted onto the two stocking tubes 62, the small spacing makes it inconvenient to manually adjust the liner between the two stocking tubes 62. To solve this problem, this design is adopted: when manually fitting the liner, the frame 63 is controlled to slide away from the transfer component, and during this process, the two stocking tubes 62 are controlled to slide in opposite directions, thereby increasing the spacing between the two stocking tubes 62 (e.g., ...). Figure 11 As shown in the diagram, this facilitates manual application of the stocking under the stocking tube 62, and also allows for manual adjustment of the stocking between the two stocking tubes 62. Furthermore, the manual application of the stocking is done away from the transfer assembly, enhancing operational safety.

[0073] It should be understood that the sliding installation method of the frame 63 is existing technology, such as using guide blocks and guide rails to achieve sliding limit, and using a screw drive to drive it. The sliding method between the two stocking tubes 62 is also existing technology. For example, two double-threaded rods 64 are rotatably connected to the frame 63, and the left and right sides of the stocking tubes 62 are respectively threaded to the two double-threaded rods 64. By driving the double-threaded rods 64 to rotate by a motor, the two stocking tubes 62 can be driven to move towards each other or away from each other at the same time.

[0074] Example 3: Refer to Figures 6 to 13 The difference from Embodiment 2 is that the molding die for the rubber boot with a liner also includes a ladle mounting assembly 7; the ladle mounting assembly 7 includes a sliding frame 71 and two positioning blocks 72; the sliding frame 71 is slidably connected to the upright frame 61 along the direction of the toe 523 of the last body 52, and the sliding frame 71 is located below the sock tube 62; the two positioning blocks 72 are symmetrically arranged on the sliding frame 71, and the positioning blocks 72 are provided with a first positioning groove 721 for fitting the ladle 100; the toe 523 position of the last body 52 is provided with a positioning part 524 for positioning the ladle 100, when the ladle 100 in the first positioning groove 721 is aligned with the toe 523 of the last body 52, the sliding frame 71 moves towards the last body 52 to assemble the ladle 100 into the positioning part 524. Figure 9 and Figure 10 As shown, the sliding frame 71 is slid away from the transfer assembly (e.g., slid to...) by controlling the sliding frame 71 to move away from the transfer assembly. Figure 9At the right end of the neutral frame 61, the steel ladle 100 can be positioned in the first positioning groove 721 manually or by a robotic arm; as the last body 52 passes downward through the stocking tube 62, the liner on the stocking tube 62 is first put on the last body 52, and when the toe 523 of the last body 52 (such as the right end of the neutral frame 61) is reached, the steel ladle 100 can be positioned in the first positioning groove 721 manually or by a robotic arm; Figure 6 When the ladle 100 is aligned with the ladle 100 in the first positioning groove 721 (alignment control can be achieved by setting a position sensor, which is existing technology), the sliding frame 71 is then controlled to slide in the direction of the toe 523 until the ladle 100 in the first positioning groove 721 is engaged with the positioning part 524, thus realizing the assembly between the ladle 100 and the toe 523. The sliding installation and control method of the sliding frame 71 is existing technology and will not be described in detail here.

[0075] This application does not limit the specific structure of the positioning part 524, for example it can be as follows: Figure 6 The L-shaped locking post and cylindrical support structure shown in the figure limit and support the steel ladle 100, while the cylindrical support provides support for the steel ladle 100, so that the steel ladle 100 is suspended in front of the toe 523. After injection molding, the rubber fills the gap between the steel ladle 100 and the toe 523, so that the steel ladle 100 is completely wrapped inside the rubber of the boot body and the insole.

[0076] In this embodiment, as Figure 10 As shown, to improve the stability of the ladle 100 within the first positioning groove 721, the ladle mounting assembly 7 further includes a first locking member 73. The first locking member 73 is disposed on the positioning block 72 and is used to lock the ladle 100 within the first positioning groove 721. The ladle 100 within the first positioning groove 721 can be locked by the first locking member 73, ensuring that the ladle 100 does not shift position during the movement of the sliding frame 71. After the assembly between the ladle 100 and the last body 52 is completed, the first locking member 73 can be engaged to lock it. The first locking member 73 is preferably an electromagnet, which facilitates the locking and unlocking operations of the ladle 100.

[0077] In this embodiment, as Figures 6 to 15 As shown, the molding die for the rubber boot with a liner also includes a foot protection mounting component 8; as Figure 15As shown, the anti-smashing foot mounting assembly 8 includes a flipping component 81, two flipping blocks 82, and a second locking component 83; the flipping component 81 includes a flipping arm 811, a sleeve 812, a first spring 813, and an abutment component 814; one end of the flipping arm 811 is rotatably mounted on the sliding frame 71, and the other end of the flipping arm 811 is slidably connected to the sleeve 812; the first spring 813 is disposed between the flipping arm 811 and the sleeve 812; the two flipping blocks 82 are symmetrically arranged on the sleeve 812, and the flipping blocks 82 are provided with second positioning grooves 821 for adapting to the anti-smashing foot 200; the two second locking components 83 are respectively disposed on the two flipping blocks 82, and the second locking components 83 are used to lock the anti-smashing foot 200 in the corresponding second positioning grooves 821; as shown Figure 7 and Figure 8 As shown, the inner side of the anti-smashing foot 200 near the ladle 100 is provided with a clearance groove 201 for avoiding the positioning part 524 and a locking groove 202 for locking the ladle 100. The abutment 814 is provided on the stand 61. During the movement of the sliding frame 71 towards the last body 52, the anti-smashing foot 200 in the second positioning groove 821 first passes through the toe 523 of the last body 52. ​​When the anti-smashing foot 200 moves into place, the sleeve 812 abuts against the abutment 814, and the sliding frame 71 continues to move towards the last body 52 until the ladle 100 is assembled to the positioning part 524, at which point the ladle 100 is locked into the locking groove 202.

[0078] like Figure 12 and Figure 13 As shown, after the assembly between the stocking and the stocking tube 62 is completed, the stocking tube 62 moves with the frame 63 towards the direction closer to the transfer assembly (e.g., towards the left end of the upright frame 61), while the sliding frame 71 moves away from the transfer assembly (e.g., towards the left end of the upright frame 61). Figure 12 The upright frame 61 moves to the right, and simultaneously, the tilting arm 811 tilts to the right of the upright frame 61, so that the second positioning grooves 821 on the two tilting blocks 82 are arranged upwards. This facilitates manual assembly of the anti-smashing foot 200 into the second positioning groove 821 and facilitates the placement of the ladle 100 into the first positioning groove 721, thereby completing the temporary fixation of the ladle 100 and the anti-smashing foot 200. Figure 9 and Figure 10As shown, after the temporary fixing of the steel ladle 100 and the anti-smashing foot surface 200 is completed, the sliding frame 71 is controlled to move towards the transfer assembly. During the movement, the flipping arm 811 flips to the left side of the upright frame 61, so that the anti-smashing foot surface 200 in the second positioning groove 821 faces downward. Under the action of the second locking member 83, the downward-facing anti-smashing foot surface 200 will not fall off. When the last body 52 passes downward through the sock sleeve and the position of the toe 523 is aligned with the position of the steel ladle 100 and the anti-smashing foot surface 200, the sliding frame 71 continues to move towards the transfer assembly (i.e., the left end of the upright frame 61). At this time, the anti-smashing foot surface 200 will first pass through the toe 523, and when the sleeve 812 contacts the contact member 814 (the position of the contact member 814 is as follows) Figure 12 (As shown) When the flipping block 82 (second positioning groove 821) and the anti-smashing foot 200 cannot continue to move relative to the last body 52 (i.e., the toe 523), the sliding frame 71 continues to move towards the left end of the upright 61, that is, the first spring 813 between the sleeve and the flipping arm 811 will be compressed, so that the steel ladle 100 continues to move to the left relative to the anti-smashing foot 200 (last body 52, toe 523) until the steel ladle 100 is engaged with the engaging groove 202 on the anti-smashing foot 200 (as shown). Figure 7 and Figure 8 (As shown) Inside, at the same time, the ladle 100 will also be engaged with the positioning part 524 (as shown). Figure 6 As shown), the ladle 100 is positioned and fixed on the positioning part 524, while the anti-smashing foot 200 is positioned on the ladle 100, thus realizing the installation between the ladle 100, the anti-smashing foot 200, and the last body 52. ​​To prevent relative displacement between the anti-smashing foot 200 and the second positioning groove 821 during the process of the ladle 100 being engaged in the engagement groove 202, a retaining edge 8211 is provided at one end of the second positioning groove 821 (e.g., ...). Figure 13 As shown, the thickness of the retaining edge 8211 is the same as the thickness of the anti-smashing foot surface 200. When the ladle 100 is inserted into the locking groove 202, the retaining edge 8211 will prevent relative sliding between the anti-smashing foot surface 200 and the second positioning groove 821. The specific structure of the second locking member 83 is preferably an electromagnet, which facilitates locking and unlocking of the anti-smashing foot surface 200. A clearance groove 201 is also provided on the anti-smashing foot surface 200 at the position corresponding to the positioning part 524 to prevent interference with the positioning part 524.

[0079] Understandably, the length of the stocking tube 62 should be such that the lower end of the last body 52 can completely protrude downwards from the stocking tube 62, thereby achieving assembly with the steel ladle 100 and the anti-smashing foot surface 200, and at this time, the sliding will not touch the upper end of the stocking tube 62.

[0080] In this embodiment, as Figure 15As shown, the sleeve 812 has a through hole extending axially; the flipping component 81 also includes an adjusting rod 815, one end of which passes through the through hole and is threaded to the flipping arm 811, and the other end of the adjusting rod 815 has a limiting part 8151 with a size larger than the through hole. By rotating the adjusting rod 815, the relative position between the flipping block 82 (i.e., the anti-smashing foot 200) and the positioning block 72 (i.e., the steel ladle 100) can be easily adjusted, facilitating debugging.

[0081] In this embodiment, as Figure 15 and Figure 16 As shown, the anti-smashing foot mounting assembly 8 also includes a flipping drive component 84, which includes a drive motor 841, a worm gear 842, and a worm wheel 843. The drive motor 841 is mounted on the sliding frame 71, and both the worm gear 842 and the worm wheel 843 are rotatably mounted on the sliding frame 71. The worm gear 842 is connected to the output shaft of the drive motor 841, and the worm gear 842 meshes with the worm wheel 843. The flipping arm 811 is radially connected to the worm wheel 843. The sleeve 812 is provided with a positioning post 85, which is used to position the anti-smashing foot 200 by abutting against the sliding frame 71. The cooperation between the worm wheel 843 and the worm gear 842 can achieve a self-locking effect, so the flipping arm 811 will not rotate after the drive motor 841 stops outputting. Furthermore, while there may be backlash between the worm gear 843 and worm 842 at their meshing position, the positioning pin 85, when the tilting arm 811 tilts to align the anti-smashing foot 200 in the second positioning groove 821, abuts against the sliding frame 71, thus eliminating the influence of backlash and ensuring that the positional accuracy of the anti-smashing foot 200 matches that of the ladle 100. A protective cover 844 is fitted over the tilting drive 84.

[0082] In this embodiment, to avoid the positioning part 524 affecting the pantyhose during the downward insertion of the last body 52, the surface of the positioning part 524 needs to be smoothed to remove sharp edges, thus preventing the positioning part 524 from scratching the pantyhose during the downward movement of the last body 52. ​​Furthermore, to further prevent the pantyhose from being scratched, such as... Figures 16 to 19As shown, the last body 52 has a receiving cavity 525 inside, and the positioning part 524 is slidably connected to the receiving cavity 525, and the positioning part 524 can slide to be hidden inside the receiving cavity 525; the upper surface of the slider 522 has an oil storage cavity 526 connected to the receiving cavity 525, and a plunger 527 is slidably connected to the oil storage cavity 526. The upper end of the oil storage cavity 526 is connected to a cover plate 528, and the cover plate 528 has openings 5281 extending through it. A second spring 529 is provided between the cover plate 528 and the plunger 527; the transfer assembly is provided with a negative pressure pipe for moving and docking with the opening 5281; the upper mold base 51 is provided with a telescopic ejector rod. When the last body 52 is closed, the telescopic ejector rod extends through the opening 5281 to press against the plunger 527. During the insertion of the stocking tube 62 into the last body 52, a vacuum is created inside the opening 5281 through the negative pressure tube to counteract the forces of the second spring 529 and the weight of the plunger 527. This causes the plunger 527 to slide upwards, allowing the positioning part 524 to slide into the receiving cavity 525 until it is hidden within the receiving groove. At this point, the positioning part 524 will not contact the stocking. After the stocking is fitted, the negative pressure tube is removed. Under the action of the second spring 529 and the weight of the plunger 527, the plunger 527 slides downwards, causing the positioning part 524 to slide out of the receiving cavity 525 again, facilitating positioning and engagement with the ladle 100. After the last body 52 is closed with the left mold 1 and right mold 2, the telescopic ejector rod enters through the opening 5281, pressing against the plunger 527 to prevent the positioning part 524 from retracting into the receiving cavity 525 due to the pressure of the rubber material. Although the positioning part 524 creates a corresponding shaped pit on the inside of the molded boot, its impact on the finished rubber boot is negligible.

[0083] It is understandable that the negative pressure pipe on the transfer assembly, its position adjustment method, and the telescopic top rod are all existing technologies, and will not be described in detail here.

[0084] The basic principles, main features, and advantages of this application have been described above. Those skilled in the art should understand that this application is not limited to the above embodiments. The embodiments and descriptions in the specification are merely the principles of this application. Various changes and modifications can be made to this application without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed application.

Claims

1. A socked gum forming mold characterized by, The left die, the right die, the isolation die, the bottom die and the sock loading mechanism are included. The sock loading mechanism includes an upper die seat and a last body for sleeving the sock, the last body is horizontally slidably connected to the lower end of the upper die seat, the outer wall upper part of the last body is provided with a positioning rib in the circumferential direction, the distance between the upper and lower sides of the positioning rib gradually decreases in the direction away from the last body, and the upper and lower sides of the positioning rib are connected to the outer side thereof through a circular arc. The left die and the right die are slidably arranged below the upper die seat, and the inner wall of the cavity of the left die and the right die is formed with a positioning groove for adapting the positioning rib. The isolation die is horizontally and vertically slidably arranged below the upper die seat, and the isolation die is below the left die and the right die. The bottom die is vertically slidably arranged below the upper die seat, and the bottom die is below the isolation die. The lower surface of the upper die seat is provided with a sliding groove, the upper end of the last body is provided with a sliding block, the sliding block is slidably connected to the sliding groove, and the upper die seat is provided with a pushing member for pushing the sliding block to the end of the sliding groove. The rubber boot forming die with sock also includes a sock mounting assembly, the sock mounting assembly includes a stand and a sock sleeve, the sock sleeve is vertically arranged on the stand, the size of the sock sleeve is larger than that of the last body, and the upper end of the sock sleeve is used for tensioning and fixing the turned-up sock cuff. The sock loading mechanism also includes a transfer assembly, the transfer assembly is arranged between the upper die seat and the stand, the transfer assembly is used for clamping and moving the sliding block horizontally and vertically, and the transfer assembly is provided with a pusher for pushing the sliding block into the sliding groove. The rubber boot forming die with sock also includes a ladle mounting assembly, the ladle mounting assembly includes a sliding frame and two positioning blocks, the sliding frame is slidably connected to the stand in the direction of approaching or moving away from the toe of the last body, and the sliding frame is below the sock sleeve, the two positioning blocks are symmetrically arranged on the sliding frame, and the positioning block is provided with a first positioning groove for adapting the ladle. The toe position of the last body is provided with a positioning part for positioning the ladle, when the ladle in the first positioning groove is aligned with the toe of the last body, the sliding frame moves in the direction of approaching the last body, so as to assemble the ladle to the positioning part. The rubber boot forming die with sock also includes a kick-proof foot surface mounting assembly, the kick-proof foot surface mounting assembly includes a turnover piece, two turnover blocks and a second locking piece, the turnover piece includes a turnover arm, a sleeve, a first spring and a contact piece, one end of the turnover arm is rotatably arranged on the sliding frame, the other end of the turnover arm is slidably connected in the sleeve, and the first spring is arranged between the turnover arm and the sleeve. Two said turnover blocks are symmetrically arranged in front of and behind the sleeve, and a second positioning groove for adapting the anti-kicking sole is arranged on the turnover block; two said second locking members are arranged on the two turnover blocks, and the second locking member is used for locking the anti-kicking sole in the corresponding second positioning groove; The inner side of the anti-kicking sole close to the ladle is provided with an avoiding groove for avoiding the positioning part and a clamping groove for clamping the ladle, and the abutting member is arranged on the stand. During the movement of the sliding frame towards the direction close to the last body, the anti-kicking sole in the second positioning groove first passes through the toe of the last body, and when the anti-kicking sole is moved to the position, the sleeve abuts against the abutting member, and the sliding frame continues to move towards the direction close to the last body, and when the ladle is assembled to the positioning part, the ladle is clamped in the clamping groove.

2. A socked boot forming mold as defined in claim 1, wherein The sliding groove comprises an upper rectangular groove, an inverted trapezoidal groove and a lower rectangular groove connected in sequence from top to bottom; the sliding block comprises an upper rectangular section, an inverted trapezoidal section and a lower rectangular section connected in sequence from top to bottom; the upper rectangular section is slidably connected to the upper rectangular groove, the inverted trapezoidal section is slidably connected to the inverted trapezoidal groove, and the lower rectangular section is slidably connected to the lower rectangular groove; the gap D between the side surface of the upper rectangular section and the inner side surface of the upper rectangular groove is greater than the gap d between the side surface of the lower rectangular section and the side surface of the lower rectangular groove, and the height difference H between the upper end surface of the upper rectangular section and the inner top of the upper rectangular groove is greater than or equal to the height h of the lower rectangular section.

3. A sock-and-boot forming mold as defined in claim 1, wherein The stocking installation assembly further comprises a frame, which is horizontally slidably connected to the stand; The number of the last bodies and the stocking tubes is two, the two last bodies are symmetrically and spacedly fixed to the same sliding block, and the two stocking tubes are symmetrically arranged and slidably connected to the frame.

4. A sock-and-boot forming mold as defined in claim 1, wherein The ladle installation assembly further comprises a first locking member, which is arranged on the positioning block and is used for locking the ladle in the first positioning groove.

5. A sock-and-boot forming mold as defined in claim 1, wherein The sleeve is axially provided with a through hole; the turnover member further comprises an adjusting rod, one end of the adjusting rod penetrates through the through hole and is then threadedly connected to the turnover arm, and the other end of the adjusting rod is provided with a limiting part with a size greater than that of the through hole; And / or, the anti-kicking sole installation assembly further comprises a turnover driving member, the turnover driving member comprises a driving motor, a worm and a worm wheel; the driving motor is mounted on the sliding frame, the worm and the worm wheel are rotatably mounted on the sliding frame, the worm is connected with the output shaft of the driving motor, and the worm is engaged with the worm wheel; the turnover arm is connected with the worm wheel in the radial direction of the worm wheel; the sleeve is provided with a positioning column, which is used for positioning the anti-kicking sole by abutting against the sliding frame.

6. A sock-and-boot forming mold as claimed in any one of claims 1-5, characterized in that The last body is internally provided with an accommodating cavity, the positioning part is slidably connected to the accommodating cavity, and the positioning part can be slid to be hidden inside the accommodating cavity; The upper surface of the sliding block is provided with an oil storage cavity which is communicated with the accommodating cavity, a plunger is slidably connected in the oil storage cavity, a cover plate is connected to the upper end of the oil storage cavity, an opening is vertically provided in the cover plate, and a second spring is arranged between the cover plate and the plunger; The transfer assembly is provided with a negative pressure pipe for the movable butt joint opening; the upper die seat is provided with a telescopic ejector rod, which is extended to the plunger through the opening when the last body is clamped.

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