Steel ladle mounting and positioning mechanism for rubber boot forming

Abstract

The utility model discloses a steel ladle installing and positioning mechanism for rubber boot forming, and relates to the technical field of rubber boot production, the steel ladle installing mechanism comprises a steel ladle installing mechanism, the steel ladle installing mechanism comprises a first connecting frame, one end of the first connecting frame is symmetrically connected with second connecting frames, and the inner side faces of the two second connecting frames are connected with side frames; a rotary clamping bag and a bearing seat are arranged between the two groups of side frames; the steel ladle which is matched with the head of the lower core mold is stably mounted on the lower core mold by arranging the steel ladle mounting mechanism, so that an integrated structure of the boot body and the steel ladle is formed by integral injection molding during injection molding of the boot body.

Description

Technical Field

[0001] This utility model relates to the field of rubber boot manufacturing technology, specifically to a steel ladle installation and positioning mechanism for rubber boot molding. Background Technology

[0002] Traditional rubber boots, as a typical type of protective boot, are usually made on a simple production line. Workers manually glue the various parts of the boot, such as the rubber sheets, lining, and sole, onto the boot last, and then the boot is vulcanized in a vulcanizing tank to form the final product.

[0003] However, with the improvement of industrial safety standards and the increase in consumer demand for protective performance, the structural design and manufacturing process of traditional rubber boots have gradually revealed the following defects: The toe of traditional rubber boots is usually made of pure rubber or composite materials in one piece. Although it can meet basic waterproof and anti-slip requirements, it still poses significant safety hazards in high-risk work scenarios. For example, in special scenarios such as construction sites, mining, or fire fighting, workers may face risks such as falling heavy objects, punctures from sharp objects, or crushing impacts. Pure rubber toe caps, due to insufficient material hardness, are unable to effectively resist external impacts or penetration by sharp objects, which can easily lead to foot injuries.

[0004] Although the industry has gradually introduced integrated injection molding molds for rubber boots, solving the efficiency and quality defects of traditional manual production, existing molds can only form the basic structure of the rubber boot and cannot directly integrate protective components such as the steel toe cap. In traditional processes, the steel toe cap needs to be fixed to the inside of the boot toe through secondary assembly (such as gluing or riveting), resulting in low production efficiency. Moreover, the assembly accuracy is greatly affected by the operator's skill level, and problems such as displacement or detachment of the steel toe cap are prone to occur, further weakening the protective reliability of the product. Utility Model Content

[0005] The purpose of this utility model is to provide a steel ladle installation and positioning mechanism for rubber boot molding, which solves the technical problem that existing molds can only achieve the molding of the basic structure of rubber boots and cannot directly integrate protective components such as steel ladle toe.

[0006] The objective of this utility model can be achieved through the following technical solutions:

[0007] A ladle mounting and positioning mechanism for rubber boot forming includes a ladle mounting mechanism. The ladle mounting mechanism includes a connecting frame one, and a connecting frame two is symmetrically connected to one end of the connecting frame one. Side frames are connected to the inner sides of both sets of connecting frames two.

[0008] A rotating clamp and a support seat are provided between the two sets of side frames.

[0009] As a further embodiment of this utility model: both sets of connecting frames 2 are set at a 90-degree angle to the connecting frame 1.

[0010] As a further embodiment of this utility model: the rotating clamp is disposed above the support base.

[0011] As a further embodiment of this utility model: the rotating clamp is rotatably disposed between the two sets of side frames.

[0012] As a further embodiment of this utility model: the rotating clamp is rotatably connected to two sets of side frames via connecting shafts on both sides, and a coil spring is provided between the connecting shaft on the outer side of the rotating clamp and the inner side of the corresponding side frame.

[0013] As a further embodiment of this utility model: one end of the coil spring is connected to the side frame, the other end of the coil spring is connected to the side of the rotating clamp corresponding to it, and the coil spring is sleeved on the corresponding connecting shaft.

[0014] As a further embodiment of this utility model: an adsorption component is provided on one side of the support base;

[0015] The adsorption component is used to adsorb the steel bag when it is clamped, and to release the steel bag after it is positioned and installed.

[0016] As a further embodiment of this utility model: the adsorption assembly includes a support frame, an air pipe is horizontally slidably arranged on the top of the support frame, a vacuum adsorption head is arranged at one end of the air pipe near the ladle, and the other end of the air pipe is connected to an external air source.

[0017] As a further embodiment of this utility model: a retaining plate is provided at one end of the air tube, and a return spring is provided between the retaining plate and the support frame.

[0018] As a further embodiment of this utility model: the two sets of side frames are connected and rotatably connected to the second connecting frame;

[0019] A motor is provided on the outer side of any one of the connecting frames;

[0020] The motor drives the side frame to deflect, adjusting the installation angle of the ladle.

[0021] Compared with the prior art, the beneficial effects of this application are as follows:

[0022] 1. By setting a ladle mounting mechanism on one side of the outer mold, the ladle mounting mechanism is driven to stably install the ladle that cooperates with the head of the lower core mold on the lower core mold, so that during the injection molding of the boot body, the boot body and the ladle are integrally injection molded to form an integral structure.

[0023] 2. In practical work, the installation and positioning of the ladle requires coordination with the angle of the lower mandrel's boot toe. Since the lower mandrel's boot toe angle is usually slightly upward, the ladle also needs to be tilted downwards to match the upwardly curved lower mandrel's boot toe during installation. This invention addresses this by incorporating an adsorption component. This component stably adsorbs the ladle during clamping. When the ladle is positioned and installed onto the lower mandrel's boot toe, it is released, allowing the ladle to be tilted and stably inserted between the rotating clamp and the support during actual installation, preventing slippage.

[0024] 3. The rotating clamp of the ladle installation mechanism in this utility model can absorb some of the direct impact force during the rigid installation of the ladle, providing a certain degree of buffering and adjustment for the ladle installation, making the ladle more stable and reducing damage to the ladle and lower core mold. Furthermore, during the resetting process, the rotating clamp exerts a certain limiting compression on the installed ladle, preventing the frictional force of the bearing seat during resetting from pulling the ladle and causing displacement, thus affecting the stability of the ladle installation. Attached Figure Description

[0025] The present invention will be further described below with reference to the accompanying drawings.

[0026] Figure 1 This is a schematic diagram of the overall structure of the mold of this utility model;

[0027] Figure 2 This is a schematic diagram of the ladle installation mechanism of this utility model in the state of installing the ladle;

[0028] Figure 3 This is a schematic diagram of the structure at the junction of the lower core mold and the steel ladle of this utility model;

[0029] Figure 4 This is a schematic diagram of the steel ladle installation mechanism of this utility model. Figure 1 ;

[0030] Figure 5 This is a schematic diagram of the steel ladle installation mechanism of this utility model. Figure 2 ;

[0031] Figure 6 This is a schematic diagram of the structure for clamping a steel ladle using a rotating clamp and a bearing seat, according to this utility model.

[0032] Figure 7 This is a schematic diagram of the steel ladle extrusion and rotating clamping state of this utility model;

[0033] Figure 8 This is a schematic diagram of the positioning boss structure of this utility model;

[0034] Figure 9 This is a schematic diagram of the position of the positioning boss in this utility model;

[0035] Figure 10 This is a schematic diagram of the positioning component structure of this utility model;

[0036] Figure 11 This is a schematic diagram of the structure between the positioning rod, positioning sleeve and moving rod of this utility model;

[0037] Figure 12 This is a schematic diagram of the positioning component of this utility model in the mold opening state.

[0038] In the diagram: 1. Outer mold; 2. Upper core mold; 21. Positioning groove; 3. Lower core mold; 31. Positioning part; 32. Mold closing surface; 33. Support rib; 4. Lower mold; 41. Positioning boss; 42. Limiting groove; 43. Movable spring; 44. Positioning sleeve; 45. Moving rod; 46. Positioning rod; 47. Sliding groove; 5. Driving component; 6. Upper template; 7. Bottom mold; 8. Steel ladle installation mechanism; 81. Connecting frame one; 82. Connecting frame two; 83. Side frame; 84. Rotating clamp; 85. Bearing seat; 86. Disc spring; 87. Support frame; 88. Air pipe; 89. Spring; 9. Steel ladle; 10. Puncture-resistant pad; 100. Boot body forming cavity; 200. Flow channel; 500. Air channel; 700. Boot sole forming cavity. Detailed Implementation

[0039] The present application will be further described below with reference to specific embodiments. It should be noted that, without conflict, the various embodiments or technical features described below can be arbitrarily combined to form new embodiments.

[0040] In the description of this application, it should be noted that directional terms such as "center," "lateral," "longitudinal," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," and "counterclockwise," etc., indicate the orientation and positional relationship based on the orientation or positional relationship shown in the accompanying drawings. These terms are used only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. They should not be construed as limiting the specific scope of protection of this application. The terms "first," "second," etc., in the specification and claims of this application are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. The terms "comprising" and "having," and any variations thereof, in the specification and claims of this application, are intended to cover non-exclusive inclusion. For example, a process, method, system, product, or device that includes a series of steps or units is not necessarily limited to those steps or units explicitly listed, but may include other steps or units not explicitly listed or inherent to these processes, methods, products, or devices.

[0041] Example 1

[0042] like Figure 1 and Figure 2 As shown, this embodiment provides a molding die for rubber boots with a steel ladle, including an outer mold 1, an upper core mold 2, a lower core mold 3, a lower mold 4, and a bottom mold 7;

[0043] The outer mold 1 has a cavity running vertically through it. The upper core mold 2 is located at the top of the cavity. The lower core mold 3 is movable vertically at the bottom of the cavity. The lower mold 4 is movable below the outer mold 1. The bottom mold 7 is movable vertically below the outer mold 1 and is located below the lower mold 4.

[0044] The outer mold 1, upper core mold 2, lower core mold 3 and lower mold 4 form a boot body forming cavity 100 for forming the boot body of the rubber boot, and the upper core mold 2 is provided with a flow channel 200 that connects to the boot body forming cavity 100 for injection molding.

[0045] Preferably, the outer mold 1 in this embodiment is an integral structure, so no parting line affecting the appearance will be formed on the boot body after molding; and even if a parting line is generated at the parting surface 32 between the upper core mold 2 and the lower core mold 3, since the parting line is located on the inside of the boot body, it will not affect the appearance. On the other hand, the inside of the rubber boot also needs to be lined, and the lining will cover the parting line, so it will not affect the comfort of wearing.

[0046] Preferably, this embodiment does not limit the specific installation method of the lower core mold 3, which can move up and down. The following is a specific installation method described: Figure 2 As shown, the rubber boot forming mold with steel ladle in this embodiment also includes a driving component 5 that can drive the lower core mold 3 to move up and down. The driving component 5 is disposed on the outer mold 1 or the upper core mold 2, and the bottom end of the driving component 5 is connected to the lower core mold 3. The driving component 5 is a prior art, such as a cylinder, oil cylinder, hydraulic cylinder, etc.

[0047] It should be further noted that, in order to prevent misalignment between the upper core mold 2 and the lower core mold 3 in the mold opening or closing state, this embodiment, for example... Figure 1 and Figure 2 As shown, a trapezoidal positioning groove 21 is provided at the lower end of the upper core mold 2, and a positioning part 31 adapted to the positioning groove 21 is provided on the mold closing surface 32 of the lower core mold 3. The lower core mold 3 is driven to close by the driving component 5, so that the positioning part 31 is inserted into the positioning groove 21 for mold closing and positioning, thereby correcting the offset error caused by the misalignment of the center of gravity of the lower core mold 3 with the upper core mold 2, and ensuring the quality of the boot body forming.

[0048] Preferably, in this embodiment, the mold-closing surface 32 is located at the narrowest part of the boot shaft, which makes the separation of the upper core mold 2 and the lower core mold 3 smoother and avoids undercutting, which would make it difficult to demold the molded rubber boot.

[0049] Preferably, the movable installation method of the lower mold 4 in this embodiment includes the movable installation of the lower mold 4 up and down and being driven to move to the outside of the outer mold 1. The movable installation method of the lower mold 4 up and down and being driven to move to the outside of the outer mold 1 is the prior art. For example, the opposite sides of the lower mold 4 are horizontally slidably connected to the guide rail, and the guide rail is equipped with a horizontal cylinder or horizontal hydraulic cylinder for driving the lower mold 4 to slide horizontally. The guide rail is connected to the support platform through a lifting cylinder or lifting hydraulic cylinder, and can be used with the guide column for lifting and sliding positioning. When the lifting cylinder or lifting hydraulic cylinder drives the guide rail to move up and down, the lower mold 4 can be driven to move up and down. When the lower mold 4 is driven to move horizontally through the horizontal cylinder or horizontal hydraulic cylinder, the lower mold 4 can be moved to the outside of the outer mold 1.

[0050] Preferably, a boot sole forming cavity 700 is formed between the bottom mold 7 and the lower mold 4 for forming the boot sole. By adding the raw material for forming the boot sole into the boot sole forming cavity 700, the raw material in the boot sole forming cavity 700 is formed into the boot sole due to the extrusion of the bottom mold 7 and the lower mold 4 after the mold is closed. Then, in conjunction with the boot body formed by injection molding in the boot body forming cavity 100, the boot body is vulcanized to form a rubber boot. This integrated rubber boot production improves production efficiency and production quality.

[0051] Preferably, the bottom mold 7 is installed in a way that allows it to move up and down, which is an existing technology. For example, the bottom mold 7 is driven to move up and down by a hydraulic cylinder, and the guide post slides up and down to limit its movement.

[0052] Preferably, this embodiment also includes an upper template 6, which is movable up and down on the top of the outer mold 1 and connected to the upper core mold 2. Before driving the lower core mold 3 to move away from the upper core mold 2, the upper template 6 is driven to open the upper core mold 2 upwards. Since the upper core mold 2 is used to form the upper part of the boot shaft, i.e., the upper core mold 2 has a structure that is wider at the top and narrower at the bottom, when the upper core mold 2 is opened, the gap between the outer side of the upper core mold 2 and the inner side of the outer mold 1 gradually increases. Therefore, when the lower core mold 3 is driven to move away from the upper core mold 2, the upper part of the boot shaft is easier to demold, and scratches on the outer side of the boot shaft can also be avoided.

[0053] It should be noted that the opening distance of the upper mold plate 6 is less than the thickness of the boot upper glue to avoid mold collision. The installation method of the upper mold plate 6 is existing technology, such as driving the upper mold plate 6 to move up and down through a hydraulic cylinder, and using guide pillars to slide up and down for limiting.

[0054] More preferably, in order to directly integrate the steel ladle into the boot toe during the one-piece injection molding of the rubber boot, a rubber boot molding mold with a steel ladle in this embodiment further includes a steel ladle mounting mechanism 8. The steel ladle mounting mechanism 8 is horizontally movable on one side of the outer mold 1, and the steel ladle mounting mechanism 8 is located near the boot toe side of the lower core mold 3.

[0055] In this embodiment, the steel ladle 9, which mates with the head of the lower core mold 3, is stably installed on the lower core mold 3 by driving the ladle mounting mechanism 8, thereby forming an integral structure of the boot body and the steel ladle during the boot body injection molding.

[0056] Preferably, such as Figure 3 As shown, since the steel bladder 9 needs to be embedded inside the rubber layer at the toe of the boot, both the inner and outer sides of the steel bladder 9 need to be covered by the rubber layer.

[0057] In this embodiment, in order to embed the ladle 9 inside the boot toe rubber layer of the boot body, the lower core mold 3 of this embodiment is provided with multiple sets of support ribs 33 at the boot toe position where the ladle 9 is placed. By providing multiple sets of support ribs 33 along the demolding direction of the boot toe of the lower core mold 3, the molten raw material can enter the interior of the ladle 9 from the space between adjacent support ribs 33 during the injection molding of the boot body, thus completing the encapsulation of the ladle 9. Furthermore, the width of the multiple sets of support ribs 33 gradually decreases from the surface of the lower core mold 3 outwards, forming an outward demolding trend, which facilitates the demolding of the finished product.

[0058] More preferably, such as Figures 4-7 In this embodiment, the ladle installation mechanism 8 includes a horizontally arranged connecting frame 1 81. Connecting frame 2 82 is symmetrically connected to the end of connecting frame 1 near the outer mold 1. Both sets of connecting frame 2 82 are set at a 90-degree angle to connecting frame 1 81. Side frames 83 are connected to the inner sides of both sets of connecting frame 2 82. A rotating clamp 84 and a bearing seat 85 are arranged between the two sets of side frames 83. The rotating clamp 84 is arranged above and the bearing seat 85 is arranged below. The rotating clamp 84 is rotatably arranged between the two sets of side frames 83. The rotating clamp 84 and the bearing seat 85 cooperate to clamp the ladle 9. After clamping, the ladle installation mechanism 8 moves to put the ladle 9 onto the lower core mold 3.

[0059] Specific examples Figure 5 As shown, the bearing seat 85 is fixed between the two sets of side frames 83 by the outer fixing pin, and the rotating clamp 84 is also rotatably connected to the two sets of side frames 83 by the connecting shafts on both sides. However, a coil spring 86 is also provided between the connecting shaft on the outer side of the rotating clamp 84 and the inner side of the side frame 83. One end of the coil spring 86 is connected to the side frame 83, and the other end is connected to the corresponding side of the rotating clamp 84. The coil spring 86 is sleeved on the corresponding connecting shaft.

[0060] In practical work, the installation and positioning of the ladle 9 needs to be coordinated with the toe angle of the lower core mold 3, and the toe angle of the lower core mold 3 is usually as follows: Figure 2As shown, there is a slight upward bend. Therefore, during the installation of the ladle 9, the ladle 9 also needs to be tilted downward to cooperate with the upward-bending lower core mold 3 boot toe. If the clamping is only completed by the tilted rotating clamp 84 and the bearing seat 85 in the ladle installation mechanism 8, the ladle 9 is prone to slipping when it is tilted in, which makes it impossible for the ladle 9 to be stably positioned and installed on the lower core mold 3.

[0061] In this embodiment, an adsorption component is provided on the side of the bearing seat 85 away from the lower core mold 3. The adsorption component is used to stably adsorb the ladle 9 when it is clamped. When the ladle 9 is positioned and installed on the boot head of the lower core mold 3, the ladle 9 is released, so that the ladle 9 is tilted and stably installed between the rotating clamp 84 and the bearing seat 85 during the actual installation process, thus avoiding the ladle 9 from slipping.

[0062] Preferably, the specific structure of the adsorption component in this embodiment is not limited, as long as it can adsorb and release the ladle 9. A specific structure is described below: A support frame 87 is provided on the side of the bearing seat 85 away from the lower core mold 3. An air pipe 88 is horizontally slidably arranged on the top of the support frame 87. A vacuum adsorption head is provided at one end of the air pipe 88 near the ladle 9, and the other end of the air pipe 88 is connected to an external air source. A clamping platform is also provided at the end of the air pipe 88 away from the ladle 9. A return spring 89 is provided between the clamping platform and the support frame 87. One end of the return spring 89 is connected to the support frame 87, and the other end abuts against the clamping platform, realizing horizontal movable adsorption. Vacuum adsorption occurs when the ladle 9 is placed in, and release occurs after the ladle 9 is installed on the boot head of the lower core mold 3. The vacuum adsorption head is existing technology and will not be described in detail here.

[0063] The working principle of this embodiment is as follows: The ladle 9 is placed between the rotating clamp 84 and the support seat 85. An external air source is activated, and the ladle 9 is adsorbed through the vacuum suction head. After adsorption, the ladle mounting mechanism 8 is driven to move, fitting the clamped ladle 9 onto the support rib 33 at the toe of the lower core mold 3. During the fitting process between the ladle 9 and the support rib 33, the ladle 9 will press against the rotating clamp 84 in the opposite direction, causing the rotating clamp 84 to rotate (towards...). Figure 7 (Counterclockwise based on the perspective), the rotating clamp 84 will cause the coil spring 86 to accumulate potential energy under force, and at the same time, the backward-moving ladle 9 will also squeeze the air pipe 88 to move backward. When the rotating clamp 84 moves to the limit, the ladle 9 will no longer move, and the ladle mounting mechanism 8 will continue to move, pressing the ladle 9 onto the support rib 33 at the boot head of the lower core mold 3.

[0064] Then, the ladle installation mechanism 8 is reset, and at the same time, the vacuum adsorption head releases the ladle 9. The coil spring 86 with potential energy drives the rotating clamp 84 to reset, and performs a certain limiting compression on the ladle 9 on the support rib 33 of the boot head part of the lower core mold 3 until the ladle installation mechanism 8 is disengaged. At the same time, the rearward-moving air pipe 88 is reset, realizing horizontal movable adsorption.

[0065] It should be noted that: In this embodiment, the rotating clamp 84 of the ladle installation mechanism 8 can absorb part of the direct impact force during the rigid installation of the ladle 9, providing a certain degree of buffering and adjustment for the installation of the ladle 9, making the ladle 9 more stable and reducing damage to the ladle 9 and the lower core mold 3. Furthermore, during the resetting process, the rotating clamp 84 provides a certain degree of limiting compression to the installed ladle 9, preventing the frictional force of the resetting bearing seat 85 from pulling and displacing the ladle 9, thus affecting the stability of the ladle 9 installation.

[0066] It is understandable that the horizontally movable installation method of the ladle installation mechanism 8 is an existing technology. For example, the horizontal movement of the ladle installation mechanism 8 can be driven by a hydraulic cylinder, and corresponding guide rails can also be set for guidance.

[0067] Preferably, in this embodiment, the two sets of side frames 83 can also be rotated and installed between the two connecting frames 82. The side frames 83 are driven to deflect by a drive source (such as a motor or rotary cylinder) to adjust the installation angle of the ladle 9 and adapt to different installation conditions.

[0068] Example 2

[0069] like Figures 8-12 As shown, the difference between this embodiment and Embodiment 1 is that the lower mold 4 in this embodiment is also provided with a positioning structure of puncture-resistant pad 10. Since the sole of a traditional rubber boot is difficult to withstand the puncture of a sharp object, this embodiment adds puncture-resistant pad 10 to the sole to improve the puncture resistance of the rubber boot.

[0070] Since the lower mold 4 and the bottom mold 7 form the boot sole by extruding the raw material, the puncture-resistant pad 10 is directly added into the boot sole forming cavity 700 and will shift in position during the extrusion process, resulting in uneven puncture resistance of the formed boot sole.

[0071] In this embodiment, a positioning structure is provided on the lower molding surface of the lower mold 4 (the surface that matches the boot sole molding cavity 700) to install and position the puncture-resistant pad 10, so as to prevent the position of the puncture-resistant pad 10 from shifting due to the mutual compression of the raw materials in the boot sole molding cavity 700 during molding.

[0072] The puncture-resistant pad 10 has a positioning hole at the corresponding positioning structure position. The positioning hole cooperates with the positioning structure to position the puncture-resistant pad 10 on the positioning structure before the boot sole is formed.

[0073] like Figure 8 As shown, the positioning structure can be a positioning boss 41 disposed on the lower forming surface of the lower mold 4. Multiple sets of positioning bosses 41 can be provided, such as... Figure 9As shown, a set of puncture-resistant pads is provided at the toe, heel, and middle of the boot. Before the boot sole is formed, the puncture-resistant pads 10 are fitted onto the corresponding positioning bosses 41 through the positioning holes, thereby positioning the puncture-resistant pads 10 on the lower forming surface of the lower mold 4, so that the puncture-resistant pads 10 do not shift during the forming of the boot sole.

[0074] like Figures 10-12 As shown, another solution in this embodiment is: the positioning structure can also be a positioning component disposed on the lower forming surface of the lower mold 4. This positioning component includes multiple sets of limiting grooves 42 formed on the lower forming surface of the lower mold 4, which can be used as follows: Figure 9 As shown, three sets of limiting grooves 42 are provided. A movable spring 43 is provided in the limiting groove 42. A moving rod 45 is abutted at the end of the movable spring 43 away from the bottom of the limiting groove 42. A positioning sleeve 44 is inserted into the opening of the limiting groove 42 with an interference fit. The top of the positioning sleeve 44 abuts against the bottom surface of the moving rod 45. A positioning rod 46 is sleeved in the positioning sleeve 44. The positioning rod 46 is adapted to the limiting groove 42. The positioning rod 46 is threaded to the moving rod 45. A sliding groove 47 is opened on the side of the positioning rod 46 near the positioning sleeve 44, so that the positioning rod 46 can move up and down in the limiting groove 42.

[0075] It should be noted that the elastic force of the movable spring 43 is relatively large, which is greater than the pressing force of manually installing the puncture-resistant pad 10 (that is, when manually installing the puncture-resistant pad 10, the movable spring 43 does not contract under force), and the movement limit distance of the positioning rod 46 is less than the thickness of the puncture-resistant pad 10, that is, after the positioning rod 46 contracts under force, it still protrudes from the lower forming surface of the lower mold 4.

[0076] The working principle of this embodiment is as follows: During the mold opening of the lower mold 4 and the bottom mold 7, the puncture-resistant pad 10 is fitted onto the positioning rod 46 through the mounting hole. Then, raw material is added inside the boot sole forming cavity 700. The lower mold 4 and the bottom mold 7 are closed to extrude the raw material. The high pressure inside extrudes the positioning rod 46 into the limiting groove 42 and fills part of the mounting hole of the puncture-resistant pad 10, thereby forming a boot sole carrying the puncture-resistant pad 10.

[0077] During the mold opening process after molding, the positioning rod 46 is pushed downward by the spring force of the return spring 89 to complete the demolding of the boot sole, avoiding the boot sole from sticking to the lower mold 4. At the same time, since the contact area between the positioning rod 46 and the puncture-resistant pad 10 is small, the puncture-resistant pad 10 and the positioning rod 46 are more easily and conveniently connected, and the boot sole remains in the boot sole molding cavity 700.

[0078] It should be noted that the use of movable positioning components can restrict the position of the puncture-resistant pad 10 during positioning and installation, and reduce the contact area with the puncture-resistant pad 10 during demolding. This avoids generating demolding pull force on the puncture-resistant pad 10, thus avoiding affecting the bonding force between the puncture-resistant pad 10 and the boot sole (when the demolding pull force is too large, it is easy to cause a bonding gap between the already bonded puncture-resistant pad 10 and the boot sole), thereby improving product quality.

[0079] It is understandable that the length of the sliding groove 47 on the positioning rod 46 is equal to the length of the positioning sleeve 44 plus the limit distance of movement, and the positioning rod 46 can slide up and down in the positioning sleeve 44 through the sliding groove 47. The positioning rod 46 is threadedly connected to the moving rod 45, and a threaded hole is provided on the moving rod 45. The positioning rod 46 is provided with a threaded post. When it is necessary to disassemble the positioning assembly, the positioning rod 46 is unscrewed, and the positioning sleeve 44 is pulled out by connecting it with the moving rod 45 through a long bolt, thereby completing the overall disassembly.

[0080] Example 3

[0081] like Figures 8-10 As shown, the difference between this embodiment and Embodiment 1 or Embodiment 2 is that the same mold is used to form a pair of rubber boots, and the steel ladle mounting mechanism 8 is provided in two sets.

[0082] Example 4

[0083] like Figure 1 As shown, the difference between this embodiment and embodiment one, two or three is that this embodiment has an air channel 500 inside the upper core mold 2 and the lower core mold 3 for air to be introduced into the boot body. During demolding, gas can be injected through the air channel 500 to facilitate demolding of the rubber boot.

[0084] Example 5

[0085] This embodiment provides a molding process for rubber boots with a steel ladle, using the molding die described in Embodiment 2, and includes the following steps:

[0086] Material feeding stage: A fixed amount of raw material is added to the boot sole forming cavity 700 area of ​​the bottom mold 7, and the puncture-resistant pad 10 is fitted onto the positioning structure of the lower forming surface of the bottom mold 4 through the mounting hole;

[0087] The ladle 9 is inserted into the ladle installation mechanism 8, and the ladle installation mechanism 8 is moved to install the ladle 9 on the lower core mold 3.

[0088] Mold closing stage: Control the lower mold 4 to move between the outer mold 1 and the bottom mold 7, and control the bottom mold 7, lower mold 4 and lower core mold 3 to move upward to complete the mold closing. The raw material and puncture-resistant pad 10 in the boot sole forming cavity 700 are extruded to form a boot sole containing the puncture-resistant pad 10.

[0089] Injection molding stage: The rubber material is injected through the runner 200, and the rubber material covers the steel ingot 9 to form a boot body with the steel ingot 9.

[0090] Vulcanization stage: First, drive the bottom mold 7 and the lower mold 4 downward. After the lower mold 4 separates from the outer mold 1 and the bottom mold 7 separates from the lower mold 4, drive the lower mold 4 to move to the outside of the outer mold 1, and then drive the bottom mold 7 upward to join the outer mold 1, so that the boot body and the boot sole vulcanize to form a rubber boot.

[0091] Demolding stage: First drive the bottom mold 7 to move downward, then drive the lower core mold 3 to move downward, and the rubber boot with steel ladle 9 and puncture-resistant pad 10 can be taken out.

[0092] The above description provides a detailed account of one embodiment of the present invention. However, this description is merely a preferred embodiment and should not be construed as limiting the scope of the present invention. All equivalent variations and improvements made within the scope of the claims of the present invention should still fall within the patent coverage of the present invention.

Claims

1. A steel ladle mounting and positioning mechanism for rubber boot forming, characterized in that, The ladle installation mechanism (8) includes a connecting frame one (81), one end of which is symmetrically connected to a connecting frame two (82), and the inner sides of both sets of connecting frames two (82) are connected to side frames (83). A rotating clamp (84) and a bearing seat (85) are provided between the two sets of side frames (83).

2. The steel ladle installation and positioning mechanism for rubber boot forming according to claim 1, characterized in that, Both sets of connecting frames two (82) are set at a 90-degree angle to the connecting frame one (81).

3. The steel ladle installation and positioning mechanism for rubber boot forming according to claim 1, characterized in that, The rotating clamp (84) is positioned above the support (85).

4. The steel ladle installation and positioning mechanism for rubber boot forming according to claim 1, characterized in that, The rotating clamp (84) is rotatably positioned between the two sets of side frames (83).

5. The steel ladle mounting and positioning mechanism for rubber boot forming according to claim 4, characterized in that, The rotating clamp (84) is rotatably connected to two sets of side frames (83) via connecting shafts on both sides, and a coil spring (86) is provided between the connecting shaft on the outer side of the rotating clamp (84) and the inner side of the corresponding side frame (83).

6. The steel ladle mounting and positioning mechanism for rubber boot forming according to claim 5, characterized in that, One end of the coil spring (86) is connected to the side frame (83), and the other end of the coil spring (86) is connected to the corresponding side of the rotating clamp (84), and the coil spring (86) is sleeved on the corresponding connecting shaft.

7. A steel ladle mounting and positioning mechanism for rubber boot forming according to claim 1 or 6, characterized in that, An adsorption component is provided on one side of the support base (85); The adsorption component is used to adsorb the steel bag when it is clamped, and to release the steel bag after it is positioned and installed.

8. The steel ladle installation and positioning mechanism for rubber boot forming according to claim 7, characterized in that, The adsorption assembly includes a support frame (87), on which a gas pipe (88) is horizontally slidably arranged. A vacuum adsorption head is arranged at one end of the gas pipe (88) near the ladle (9), and the other end of the gas pipe (88) is connected to an external gas source.

9. The steel ladle mounting and positioning mechanism for rubber boot forming according to claim 8, characterized in that, A retaining plate is provided at one end of the air tube (88), and a return spring (89) is provided between the retaining plate and the support frame (87).

10. The steel ladle mounting and positioning mechanism for rubber boot forming according to claim 1, characterized in that, The two sets of side frames (83) are connected and rotatably connected to the second connecting frame (82); A motor is provided on the outer side of any one of the connecting frames (82); The motor drives the side frame (83) to deflect, adjusting the installation angle of the ladle (9).

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