Point pouring injection automatic dehydration mouth heel iron nail heel lift mold

Abstract

The utility model discloses a point-pouring injection automatic dehydration mouth heel iron nail heel lift mold which comprises a mold frame and mold cores arranged on the mold frame and used for pouring shoe nails, a mold jacking device is arranged below the mold frame, the mold cores are provided with a plurality of pouring grooves, the bottoms of the pouring grooves are communicated with heel nail holes for placing heel nails, the mold cores are divided into a first mold core and a second mold core, and the first mold core and the second mold core are communicated with each other. A pouring channel used for achieving pouring is arranged between the first mold core and the second mold core, a circulation hole is formed in the end face, communicated with the heel nail hole, of the pouring channel, an inner mold frame is detachably connected to the lower portions of the mold cores, the first mold core and the second mold core are detachably connected to the inner mold frame, and the inner mold frame can separate the first mold core from the second mold core. The die core enables the notch to be formed in the end face of the end, close to the heel nail, of the heel block through the circulation hole. Relative movement of the first mold core and the second mold core can be achieved through the inner mold frame, the rubber column in the pouring channel is separated from the mold core, the shoe tacks and the rubber column are ejected out through the mold ejecting device, and efficient production of the shoe tacks is achieved.

Description

Technical Field

[0001] This utility model relates to the field of shoe nail production, and in particular to a spot-casting injection automatic dehydration nozzle shoe heel nail top mold. Background Technology

[0002] Most existing shoe spikes are injection molded, where molten TPU material is injected into a mold cavity using an injection machine, cooled and solidified, and then the injection port is cut off, leaving a cut mark on the finished product. This mark makes the outer surface of the heel pad uneven, especially for round heel pads, where installers can easily install the cut mark on the outside of the heel, thus affecting the overall aesthetics of the shoe. Furthermore, since shoe spikes have a relatively low selling price, polishing the injection port mark would significantly increase the cost of the shoe spike.

[0003] Chinese utility model patent with publication number "CN201669840U" discloses a shoe nail heel mold, including a mold frame, a mold base on the mold frame, and a top mold mechanism below the mold base. The mold base has a groove consistent with the heel pad, and a heel nail hole is provided in the middle of the bottom of the groove. The top mold mechanism consists of a lifting template, a top piece, and a lifting template lifting device. The top piece is fixed on the lifting template and faces the heel nail hole. The lifting template lifting device is connected to the lifting template.

[0004] However, the aforementioned shoe spikes and molds still have the following defects:

[0005] First, the grooves are directly formed on the mold base, and the heels of the cleats need to be poured step by step. The pouring of the heels is quite cumbersome and cannot meet the needs of rapid production. In addition, manual pouring needs to be repeated after each demolding, which greatly increases the complexity of cleat production. At the same time, the overall volume of the mold base is large, and the grooves are set on the mold core. Hot melt is easy to remain on the surface of the mold base, which will contaminate the mold. Existing pouring also uses the pouring channel method. However, when the cleats cool, the hot melt also cools in the pouring channel, causing blockage of the pouring channel and affecting cleat production.

[0006] Secondly, the heel spike is placed directly in the heel spike hole. During the heel casting process, the heel spike will swing, causing the heel spike and the heel of the shoe spike to deviate. This results in a high defect rate in shoe spike production and increases production costs.

[0007] Third, the shoe nails are cooled naturally during the casting process. The hot melt takes a long time to cool in the casting groove. At the same time, during the cooling process, the heat is conducted to the mold base, which can easily cause the groove on the mold base to deform, resulting in irregular shape of the shoe nail heel.

[0008] Therefore, it is necessary to improve upon the aforementioned shortcomings. Utility Model Content

[0009] The purpose of this invention is to provide an automatic dehydration mold for the heel nail top of a shoe, which solves the above-mentioned problems existing in the prior art.

[0010] To achieve the above objectives, the technical solution adopted by this utility model is as follows: an automatic dehydration mold for injection of shoe nails, comprising a mold frame and a mold core disposed on the mold frame for injecting shoe nails. A top mold device is provided below the mold frame. The mold core has several injection grooves, and the bottom of the injection grooves is connected to a heel nail hole for placing the heel nail. The mold core is divided into a first mold core and a second mold core. An injection channel for injection is provided between the first mold core and the second mold core. A flow hole is provided on the end face of the injection channel where the grooves and the heel nail holes are connected. The mold core can quickly inject multiple shoe nails through the flow hole. An inner mold frame is provided below the mold core. The first mold core and the second mold core are detachably connected to the inner mold frame. First fixing holes are provided on both sides of the inner mold frame. Second fixing holes are provided on the mold core corresponding to the first fixing holes. The first mold core and the second mold core are detachably connected to the inner mold frame through the first fixing holes and the second fixing holes. The inner mold frame can separate the first mold core and the second mold core.

[0011] By adopting the above technical solution: by installing the mold core on the mold frame, when the heel stud is first placed and poured, the hot melt flows through the flow holes connected to the pouring channel on the mold core to multiple pouring grooves. The hot melt does not flow onto the mold surface, improving the overall cleanliness of the mold. After the hot melt cools down, since the first mold core and the second mold core are detachably connected to the inner mold frame through the first and second fixing holes, the mold frame can separate the first mold core and the second mold core through the inner mold frame. The cooled glue column in the pouring channel remains in place, and the top mold device demolds the shoe stud in the pouring groove and ejects the glue column, achieving efficient production of shoe studs. Compared with the existing technology of directly opening grooves on the mold base and gradually pouring into the grooves, this utility model can achieve hidden cuts and high adaptability of the mold frame by placing the mold core on the mold base and the pouring channel on the mold core, and can also improve the diversity of shoe stud production methods by replacing the mold core.

[0012] The above-mentioned automatic dewatering nozzle shoe heel nail top mold can be further configured as follows: several inclined guide pillars are provided above the mold frame, the inner mold frame is provided with a first inclined guide groove, the inner mold frame realizes the left and right movement of the first mold core and the second mold core through the first inclined guide groove and the inclined guide pillars, the mold core is covered with a cover plate, the first mold core and the second mold core include an upper mold and a lower mold, the upper mold and the lower mold are provided with connecting holes on both sides, the upper mold and the lower mold maintain a stable relative position through the connecting holes, the pouring groove is located in the upper mold, the cover plate covers the upper mold away from the lower mold and closes the pouring groove, the upper mold is provided with a glue inlet in the middle of the upper mold that communicates with the pouring channel, the glue inlet is connected to a glue inlet pipe, the heel nail hole passes through the bottom of the pouring groove and passes through the lower mold, the pouring channel is located in the space between the bottom end face of the pouring groove and the end face of the lower mold away from the upper mold, the lower mold is provided with a top mold hole in the middle of the lower mold, and the top mold device realizes linkage with the mold core through the top mold hole.

[0013] By adopting the above technical solution: the inclined guide post and the first inclined guide groove cooperate with each other, and when the mold is opened, the mold frame always stays in the vertical direction of the mold core. At the same time, the inner mold frame moves left and right relative to the mold frame, the first mold core and the second mold core separate, and then the top mold device can push out the shoe nail and the glue column in the pouring channel, so as to realize the efficient production of shoe nail. Furthermore, by dividing the mold core into an upper mold and a lower mold, and with the upper mold's inlet allowing for rapid injection into the gating channel, and because the cover plate seals the upper mold's gating groove, the hot melt won't overflow when filling the groove, reducing the defect rate of heel spikes during the casting process. The gating channel is located in the space between the bottom end face of the gating groove and the far end face of the lower mold, with the flow hole and heel spike hole on the same side of the gating groove. After casting, the cut mark is located on the connection surface between the heel spike and the heel spike. During spike assembly, the cut mark is hidden at the connection point, resulting in high overall integrity and a more aesthetically pleasing shape on the outside of the spike. Simultaneously, the spike can be directly removed from the gating groove, saving manual cutting operations and simplifying the production process. In addition, the top mold device can separate the upper and lower molds through the top mold hole, quickly ejecting the cooled glue column from the gating channel and enabling rapid cleaning of the gating channel.

[0014] The above-mentioned spot casting automatic dehydration port shoe heel nail top leather mold can be further configured as follows: the lower mold is divided into a clamping block and a fixing block, the clamping block and the fixing block can move relative to each other, the heel nail hole is located at the joint of the clamping block and the fixing block, and the two ends of the clamping block and the fixing block are transversely connected by a placement groove, and an elastic element is placed in the placement groove. The elastic element is used to separate the clamping block and the fixing block so that the heel nail can be quickly put into the heel nail hole.

[0015] By adopting the above technical solution: during the production process, the clamping block and the fixing block are separated by the elastic element in the placement groove, the heel nail hole is opened, and the heel nail can be quickly placed into the heel nail hole. Then the clamping block and the fixing block are pressed together, and the heel nail hole becomes a whole again. The heel nail is clamped by the heel nail hole and will not shift during the casting process. Compared with the method of directly placing the heel nail into the heel nail hole, the placement of the heel nail is faster, and the heel nail will not shake or shift during the casting process, resulting in a higher integrity of the produced shoe nail.

[0016] The above-mentioned automatic dewatering inlet shoe nail mold can be further configured as follows: the casting channel is divided into a main casting channel and a secondary casting channel. The injection port is located in the main casting channel of the upper mold. The flow hole is located at the end of the secondary casting channel away from the main casting channel and is connected to the casting groove. The mold core injects glue through the injection port located on the main casting channel. When the mold core is casting, the cover plate and the upper mold move down to achieve a clearance fit with the lower mold so that the casting groove and the heel nail hole fit together as a whole. After the casting is completed in the casting groove, the shoe nail is ejected by the top mold device.

[0017] By adopting the above technical solution, the gating channel, divided into a main gating channel and secondary gating channels, allows for precise control of the gating position and flow rate, reducing material waste and lowering production costs. Simultaneously, multiple secondary gating channels enable hot melt flow diversion, reducing resistance during flow and improving material flow efficiency. Furthermore, the gate is located in the upper mold, allowing the hot melt to flow quickly from the gate to the gating channel, reducing manual intervention and accelerating production.

[0018] The above-mentioned automatic dewatering mold for shoe nails can be further configured as follows: the top mold device includes a top mold plate and a sliding plate. The top mold plate is provided with a top mold column. A return spring is sleeved on the end of the top mold column away from the top mold plate. A top mold rod and an ejector rod are fixed on the sliding plate. One end of the top mold rod is in contact with the mold core, and the other end is fixedly connected to the mold frame through the top mold plate. An ejector tube is sleeved on the outer periphery of the ejector rod. One end of the ejector tube is in contact with the sliding plate, and the other end is connected to the pouring channel. The end of the ejector rod away from the sliding plate is placed below the mold core, and the other end is fixedly connected to the sliding plate. The ejector tube and the top mold rod are used to realize the rapid demolding of the shoe nail.

[0019] By adopting the above technical solutions, the top mold device improves demolding efficiency and accuracy through the ejector pin rod and top mold rod, reduces manual operation, and enhances the level of production automation. The fixed connection between the ejector pin rod and the mold core and top mold plate ensures the accuracy and consistency of demolding, improving product quality. The reset spring quickly resets the sliding plate, allowing the ejector pin rod to quickly and repeatedly demold the shoe nails, improving work efficiency. Furthermore, the top mold device is highly adaptable, flexibly responding to different production needs, ensuring both high production efficiency and safety.

[0020] The above-mentioned automatic dewatering mold for the heel nail top can be further configured as follows: a mold base is provided on the mold frame, an inner mold frame is located above the mold base, a second inclined guide groove is provided on the mold base, sliding grooves are provided on both sides of the mold base, the inner mold frame is slidably connected to the mold base through the sliding grooves, several ball bearing holes are provided at the bottom of the sliding grooves, ball bearings are provided in the ball bearing holes, positioning holes are provided at intervals at the connection between the inner mold frame and the sliding groove, the positioning holes are used to control the maximum stroke of the mold opening device, a mold core groove for accommodating the mold core is provided in the middle of the inner mold frame, several wedge blocks are provided on both sides of the inner mold frame, the wedge blocks are used to tightly clamp the clamping block and the fixing block.

[0021] By adopting the above technical solution: the inner mold frame can move left and right through the sliding groove on the mold base. During the upward movement of the mold frame, the inclined guide post can quickly separate the first mold core and the second mold core on the inner mold frame through the first inclined guide groove of the inner mold frame and the second inclined guide groove on the mold base, so that the shoe nail in the pouring groove will make a cut at the flow hole. In addition, the inner mold frame will be inserted with a ball through the positioning hole at the bottom during the sliding of the mold base, so as to control the sliding distance and effectively prevent the production problems caused by the excessive sliding distance of the inner mold frame. The wedge block can limit the inner mold frame when the clamping part and the fixing part of the inner mold frame and the lower mold need to be tightly fitted, preventing the inner mold frame and the lower mold from automatically opening and improving the stability of the pouring process.

[0022] The above-mentioned automatic dewatering nozzle shoe heel nail top mold can be further configured as follows: the mold frame includes a base plate, fixed plates are provided on both sides of the base plate in the vertical direction, the top mold device is located between the fixed plates, the mold base is fixed on the side of the fixed plate away from the base plate, the mold base is provided with several heat dissipation grooves, the heat dissipation grooves are used to dissipate heat from the hot melt during pouring, the mold base is provided with sliding grooves on both sides between the sliding grooves, the mold base is provided with several movable holes for the top mold rod to pass through, the movable holes and the sliding grooves are provided with several sliding holes for the ejector pin rod to pass through, the top mold device achieves contact connection with the mold core by inserting the ejector pin rod and the top mold rod through the movable holes and the sliding holes, the sliding groove is provided with a mold opening device, the mold opening device is used to realize the automatic opening and closing of the clamping block and the fixed block.

[0023] By adopting the above technical solution, the mold frame supports the mold through the base plate and the fixed plate, and reduces the overall volume of the mold frame. The mold frame can be placed in a smaller space. Furthermore, by opening heat dissipation grooves, sliding holes and movable holes on the mold base, the hot melt can be cooled quickly during the shoe nail pouring process, and the top mold device can quickly eject the shoe nail. At the same time, the mold opening device on the mold base can clamp the clamping block and the fixed block of the lower mold, thereby limiting the heel nail in the heel nail hole, effectively preventing the heel nail from shifting during the pouring process and reducing the defect rate of shoe nails.

[0024] The above-mentioned spot-casting injection automatic dewatering port shoe heel nail top leather mold can be further configured as follows: the mold opening device includes a first moving block, the first moving block is detachably connected to the inner mold frame, a first placement hole is opened in the middle of the first moving block, a second placement hole is opened in the sliding groove at the corresponding position of the first placement hole, a slider spring is provided in the first placement hole and the second placement hole, a second moving block is provided on the side of the first moving block away from the mold base, the first moving block and the second moving block are slidably connected by a connecting rod, a moving piece is slidably connected to the end of the second moving block away from the first moving block, the second moving block drives the first moving block to move through the moving piece, thereby realizing the opening and closing movement between the clamping block and the lower module.

[0025] By adopting the above technical solution: when the shoe nail is molded, the slider spring in the first connecting block, together with the inclined guide post, moves the first mold core and the second mold core on the inner mold frame to the designated position. The top mold device ejects the shoe nail. Then, the mold opening device moves towards the center of the mold base in the sliding groove through the first connecting block, driving the inner mold frame to re-fit, thereby making the first mold core and the second mold core reassemble into a complete casting whole, achieving efficient repetitive production.

[0026] The above-mentioned automatic dewatering nozzle shoe heel nail top mold can be further configured as follows: a top block is provided above the inner mold frame of the mold frame, a top plate is fixed at the end of the top block away from the mold core, the glue inlet pipe is located in the middle of the top plate and connected to the glue inlet, a fixing groove is opened in the middle of the top block, the top block is fixed on the mold base and the mold core is fastened through the fixing groove, the inclined guide post is fixedly connected to the top plate, the top block is provided with a third inclined guide groove, and the inclined guide post achieves sliding connection with the inner mold frame and the mold base through the third inclined guide groove.

[0027] By adopting the above technical solution—the oblique guide post cooperating with the third oblique guide groove—the top block and top plate can always remain perpendicular to the mold frame during mold opening, reducing the offset of the top block and top plate when being lifted and ensuring the stability of the overall mold frame structure. Furthermore, the fixing groove in the middle of the top block can completely accommodate the mold core, protecting it and stabilizing the top cover within the fixing groove, facilitating rapid demolding of the shoe nails in the pouring groove, thereby improving production efficiency.

[0028] The above-mentioned automatic dewatering nozzle shoe heel nail top mold can be further configured as follows: several cooling pipes are opened on the side of the top block near the top plate, the cooling pipes are close to the fixed groove, and cooling interfaces are fixed at both ends of the cooling pipes. The cooling pipes cool the mold core through the cooling interfaces; the fixed groove is provided with abutment blocks on both sides, the abutment blocks can abut against the upper mold, the cover plate is detachably connected between the abutment blocks, the abutment blocks are provided with movable grooves, and the cover plate can be removed from between the abutment blocks through the movable grooves.

[0029] By adopting the above technical solution: the cover plate is placed in the fixed groove, and the top block can drive the cover plate to move up and down during the movement, thereby realizing automatic sealing of the pouring groove. At the same time, the stop block can limit the cover plate to prevent it from shifting in the top block and causing inaccurate sealing of the pouring groove. In addition, multiple cooling pipes in the top block and cooling water are introduced through cooling interfaces, which can cool the mold core during the pouring process, prevent the mold core from overheating and deforming, and reduce the defect rate of shoe nail pouring.

[0030] The beneficial effects of this utility model are as follows:

[0031] First, through the casting groove, casting channel, heel pin hole and flow hole on the mold core, the mold core casts into the casting groove through the flow hole on the casting channel, which is convenient and quick. When the mold is opened, the inclined guide post cooperates with the first inclined guide groove to move the first mold core and the second mold core to the top of the top mold device. The casting cooled in the casting channel is limited and stopped in place by the top mold rod. The top mold device can eject the shoe nail and the rubber column at the same time. Since the flow hole is located on the end face of the casting groove and the heel pin hole, when the shoe nail is demolded, the cut mark is on the connecting surface of the heel pin and the heel block. When the shoe nail is assembled, the outer surface of the heel pad is intact and the overall appearance of the shoe nail is high.

[0032] Secondly, the upper and lower molds of the mold core are divided into multiple parts, and the lower mold is divided into a clamping block and a fixing block. An elastic element is provided between the clamping block and the fixing block to enlarge the heel nail hole, so that the heel nail can be quickly inserted into it. Then the mold opening device re-fits the clamping block and the fixing block, so that the heel nail is tightly clamped by the heel nail hole. The heel nail will not shift during the casting process, and the overall shape of the produced shoe nails is consistent, which reduces the defect rate of shoe nails.

[0033] Third, when the inner mold frame of the mold opening device slides in the groove of the mold base, the ball in the ball hole at the bottom of the groove is bounced into the positioning hole of the inner mold frame, thereby limiting the maximum sliding distance of the inner mold frame. This prevents the problem of unstable placement of the heel pin caused by the excessive separation distance between the clamping block and the fixing block in the lower mold. At the same time, it can prevent the mold opening device from detaching from the mold base and improve the stability of the mold opening device.

[0034] Fourth, the cooling channels in the top block and the heat dissipation grooves on the mold base work together to quickly cool the mold core, improve the cooling efficiency of the hot melt in the pouring groove, and at the same time cool the mold to prevent deformation and damage caused by excessive temperature, thus improving the service life of the mold.

[0035] Fifth, the mold frame, mold base, and mold core work together. By placing the mold core on the mold base, various shoe nail production needs can be met by changing the mold core. The mold frame and mold base are highly adaptable, and the overall volume of the mold frame and mold base is small, so they can be placed in various small spaces.

[0036] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments. Attached Figure Description

[0037] Figure 1 This is a schematic diagram of the overall mold of this utility model;

[0038] Figure 2 This is an exploded view of the mold of this utility model;

[0039] Figure 3 This is an exploded view of the mold core of this utility model;

[0040] Figure 4 This is a schematic diagram of the upper mold assembly of the mold core of this utility model;

[0041] Figure 5 This is a schematic diagram of the lower mold assembly of the mold core of this utility model;

[0042] Figure 6 This is a schematic diagram of the bottom surface of the inner mold frame of this utility model;

[0043] Figure 7 This is an overall schematic diagram of the top mold device of this utility model;

[0044] Figure 8 This is an exploded view of the top mold device of this utility model;

[0045] Figure 9 This is an exploded view of the mold opening device of this utility model;

[0046] Figure 10 This is a schematic diagram of the mold frame structure of this utility model;

[0047] Figure 11 This is a schematic diagram of the mold base structure of this utility model;

[0048] Labeling notes: Mold frame 1, Angled guide post 11, Base plate 12, Fixing plate 13, Top block 14, Fixing groove 141, Third Angled guide groove 142, Cooling pipe 143, Cooling interface 144, Stop block 145, Movable groove 146, Top plate 15, Mold core 2, Gating groove 21, Heel pin hole 22, First mold core 23, Upper mold 231, Lower mold 232, Connecting hole 233, Inlet 234, Inlet pipe 235, Top mold hole 236, Second fixing hole 237, Second mold core 24, Clamping block 241, Fixing block 242, Placement groove 243, Elastic element 244, Gating channel 25, Main gating channel 251, Secondary gating channel 252, Flow hole 2 6. Inner mold frame 27, first inclined guide groove 271, positioning hole 272, mold core groove 273, wedge block 274, first fixing hole 275, cover plate 28, top mold device 3, top mold plate 31, top mold pillar 311, return spring 312, sliding plate 32, ejector rod 321, ejector rod 322, ejector tube 323, mold base 4, second inclined guide groove 41, sliding groove 42, ball hole 421, ball 422, heat dissipation groove 43, sliding groove 44, second placement hole 441, movable hole 45, sliding hole 46, mold opening device 5, first moving block 51, first placement hole 511, slider spring 512, second moving block 52, connecting rod 53, moving piece 54. Detailed Implementation

[0049] The technical solutions in the embodiments of this utility model will be clearly and completely described below. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0050] like Figures 1 to 11The above describes an automatic dehydration mold for injecting and casting shoe nails, comprising a mold frame 1 and a mold core 2 for injecting shoe nails, mounted on the mold frame 1. A top mold device 3 is provided below the mold frame 1. The mold core 2 has several injection grooves 21, the bottom of which is connected to a heel nail hole 22 for placing the heel nail. The mold core 2 is divided into a first mold core 23 and a second mold core 24. An injection channel 25 for injection is provided between the first mold core 23 and the second mold core 24. A flow hole 26 is provided on the end face of the injection channel 25 that connects the groove and the heel nail hole 22. An inner mold frame 27 is detachably connected below the mold core 2. The mold core 2 enables rapid injection of multiple shoe nails through the flow hole 26. By installing the mold core 2 onto the mold frame 1, when the heel stud is first placed and the shoe stud is poured, the hot melt flows through the pouring channel 25 on the mold core 2 and the flow hole 26 to multiple pouring grooves 21. After the hot melt cools down, since the inner mold frame 27 has first fixing holes 275 on both sides, and the mold core 2 has second fixing holes 237 corresponding to the first fixing holes 275, the first mold core 23 and the second mold core 24 are detachably connected to the inner mold frame 27 through the first fixing holes 275 and the second fixing holes 237. The mold frame 1 can be connected through the inner mold. Frame 27 separates the first mold core 23 from the second mold core 24. The cooled glue column in the pouring channel 25 remains in place. The top mold device 3 demolds the shoe nail in the pouring groove 21 and pushes out the cooled glue column, realizing the efficient production of shoe nails. Compared with the existing technology of directly opening grooves on the mold base 4 and pouring into the grooves step by step, this utility model can hide the cut by placing the mold core 2 on the mold base 4 and pouring through the pouring channel 25 on the mold core 2. It can also achieve high adaptability of the mold frame 1 by replacing the mold core 2, thereby improving the diversity of shoe nail production methods.

[0051] like Figures 2 to 5The mold frame 1 shown has several inclined guide pillars 11 on top. The inner mold frame 27 has a first inclined guide groove 271. The inner mold frame 27 moves left and right between the first mold core 23 and the second mold core 24 through the first inclined guide groove 271 and the inclined guide pillars 11. The mold core 2 is covered with a cover plate 28. The first mold core 23 and the second mold core 24 include an upper mold 231 and a lower mold 232. The upper mold 231 and the lower mold 232 have connecting holes 233 on both sides. The upper mold 231 and the lower mold 232 maintain a stable relative position through the connecting holes 233. The pouring groove 21 is located on the upper mold 231. In 31, the cover plate 28 covers the end of the upper mold 231 away from the lower mold 232 and closes the casting groove 21. The upper mold 231 has a glue inlet 234 in the middle that communicates with the casting channel 25. The glue inlet 234 is connected to the glue inlet pipe 235. The heel pin hole 22 passes through the bottom of the casting groove and through the lower mold 232. The casting channel 25 is located in the space between the bottom end face of the casting groove and the end face of the lower mold 232 away from the upper mold 231. The lower mold 232 has a top mold hole 236 in the middle. The top mold device 3 realizes linkage with the mold core 2 through the top mold hole 236. By dividing the mold core 2 into an upper mold 231 and a lower mold 232, and with the glue inlet 234 of the upper mold 231 enabling rapid glue injection into the pouring channel 25, and since the cover plate 28 covers the upper mold 231, the pouring groove 21 of the upper mold 231 is sealed, preventing the hot melt from overflowing when filling the pouring groove, thus reducing the defect rate of nail heels during the pouring process. Furthermore, the pouring channel 25 is located in the space between the bottom end face of the pouring groove and the far end face of the lower mold 232, with the flow hole 26 and the heel nail hole 22 on the same side of the pouring groove. After pouring, the cut mark is located on the connection surface between the nail heel and the heel nail. During nail assembly, the cut mark is hidden at the connection point, resulting in high overall integrity of the nail's outer side and a more aesthetically pleasing shape. At the same time, the nail can be directly removed from the pouring groove, saving manual cutting operations and simplifying the production process. In addition, the top mold device 3 can separate the upper mold 231 and the lower mold 232 through the top mold hole 236, quickly eject the cooled glue column in the gating channel 25, and quickly clean the gating channel 25.

[0052] The lower mold 232 is divided into a clamping block 241 and a fixing block 242. The clamping block 241 and the fixing block 242 can move relative to each other. The heel pin hole 22 is located at the contact point between the clamping block 241 and the fixing block 242. The two ends of the clamping block 241 and the fixing block 242 are transversely connected by a placement groove 243. An elastic element 244 is placed in the placement groove 243. The elastic element 244 is used to separate the clamping block 241 and the fixing block 242 so that the heel pin can be quickly inserted into the heel pin hole 22. During the production process, the clamping block 241 and the fixing block 242 are separated by the elastic element 244 in the placement groove 243, the heel nail hole 22 is opened, and the heel nail can be quickly inserted into the heel nail hole 22. Then the clamping block 241 and the fixing block 242 are pressed together, and the heel nail hole 22 becomes a whole again. The heel nail is clamped by the heel nail hole 22 and will not shift during the casting process. Compared with the method of directly placing the heel nail into the heel nail hole 22, the placement of the heel nail is faster, and the heel nail will not wobble or shift, resulting in a higher integrity of the produced shoe nail.

[0053] The gating channel 25 is divided into a main gating channel 251 and a secondary gating channel 252. The inlet 234 is located in the main gating channel 251 of the upper mold 231. The flow hole 26 is located at the end of the secondary gating channel 252 away from the main gating channel 251 and communicates with the gating groove 21. The mold core 2 injects glue through the inlet 234 located on the main gating channel 251. When the mold core 2 is being cast, the cover plate 28 and the upper mold 231 move down to achieve a clearance fit with the lower mold 232, so that the gating groove 21 and the heel nail hole 22 fit together as a whole. After the gating is completed in the gating groove 21, the shoe nail is ejected by the top mold device 3. The gating channel 25, divided into a main gating channel 251 and a secondary gating channel 252, can accurately control the casting position and flow rate, reduce material waste, and reduce production costs. At the same time, multiple secondary gating channels 25 can realize the diversion of hot melt, reduce the resistance of hot melt in the flow process, and improve the material flow efficiency. In addition, the inlet 234 is located in the upper mold 231, and the hot melt can quickly flow from the inlet 234 to the gating channel 25, reducing the need for manual pouring and speeding up the production pace.

[0054] like Figure 7 , Figure 8The top mold device 3 shown includes a top mold plate 31 and a sliding plate 32. The top mold plate 31 is equipped with a top mold column 311, and a return spring 312 is fitted onto the end of the top mold column 311 furthest from the top mold plate 31. The sliding plate 32 is fixed with a top mold rod 322 and an ejector pin rod 321. One end of the top mold rod 322 is in contact with the mold core 2, and the other end is fixedly connected to the mold frame 1 through the top mold plate 31. An ejector pin tube 323 is fitted around the outer periphery of the ejector pin rod 321. One end of the ejector pin tube 323 abuts against the sliding plate 32, and the other end connects to the pouring channel 25. The end of the ejector pin rod 321 furthest from the sliding plate 32 is positioned below the mold core 2, and the other end is fixedly connected to the sliding plate 32. The ejector pin tube 323 and the top mold rod 322 are used to achieve rapid demolding of the shoe nail. The top mold device 3, through the ejector pin rod 321 and the top mold rod 322, improves demolding efficiency and accuracy, reduces manual operation, and enhances the level of production automation. The fixed connection between the ejector pin 321 and the mold core 2 and the top platen 31 ensures the accuracy and consistency of demolding, improving product quality. The reset spring 312 quickly resets the sliding plate 32, and the ejector pin 321 can quickly and repeatedly demold the shoe nails, improving work efficiency. In addition, the top mold device 3 is highly adaptable and can flexibly meet different production needs, ensuring high production efficiency and safety.

[0055] like Figure 1 , Figure 2 , Figure 11 The mold frame 1 shown is provided with a mold base 4, and an inner mold frame 27 is provided above the mold base 4. The mold base 4 is provided with a second inclined guide groove 41, and sliding grooves 42 are provided on both sides of the mold base 4. The inner mold frame 27 is slidably connected to the mold base 4 through the sliding grooves 42. Several ball holes 421 are provided at the bottom of the sliding grooves 421, and ball balls 422 are provided in the ball holes 421. Positioning holes 272 are provided at intervals at the connection between the inner mold frame 27 and the sliding grooves 42. The positioning holes 272 are used to control the maximum stroke of the mold opening device 5. A mold core groove 273 is provided in the middle of the inner mold frame 27 to accommodate the mold core 2. Several wedge blocks 274 are provided on both sides of the inner mold frame 27. The wedge blocks 274 are used to tightly clamp the clamping block 241 and the fixing block 242. The inner mold frame 27 can move left and right through the sliding groove 42 on the mold base 4. During the upward movement of the mold frame 1, the inclined guide post 11 can quickly separate the first mold core 23 and the second mold core 24 on the inner mold frame 27 through the first inclined guide groove 271 of the inner mold frame 27 and the second inclined guide groove 41 on the mold base 4, so that the shoe nail in the pouring groove 21 makes a cut at the flow hole 26. In addition, the inner mold frame 27 will be inserted into the ball 422 through the positioning hole 272 at the bottom during the sliding of the mold base 4, so as to control the sliding distance and effectively prevent the production problems caused by the excessive sliding distance of the inner mold frame 27. The wedge block 274 can limit the inner mold frame 27 when the clamping part and the fixing part of the inner mold frame 27 and the lower mold 232 need to be tightly fitted, preventing the inner mold frame 27 and the lower mold 232 from automatically opening and improving the stability during the pouring process.

[0056] The mold frame 1 includes a base plate 12, with fixed plates 13 on both sides of the base plate 12 in the vertical direction. The top mold device 3 is located between the fixed plates 13. The mold base 4 is fixed to the side of the fixed plate 13 away from the base plate 12. The mold base 4 has several heat dissipation grooves 43, which are used to dissipate heat from the hot melt during pouring. The mold base 4 has sliding grooves 44 on both sides between the sliding grooves 42. The mold base 4 has several movable holes 45 in the middle for the top mold rods 322 to pass through. The movable holes 45 and the sliding grooves 44 have several sliding holes 46 for the ejector pins 321 to pass through. The top mold device 3 achieves contact connection with the mold core 2 by passing the ejector pins 321 and the top mold rods 322 through the movable holes 45 and the sliding holes 46. The sliding grooves 44 have an opening device 5, which is used to realize the automatic opening and closing of the clamping block 241 and the fixed block 242. The mold frame 1 supports the mold through the base plate 12 and the fixing plate 13, and also reduces the overall volume of the mold frame 1. The mold frame 1 can be placed in a smaller space. Furthermore, by opening heat dissipation grooves 43, sliding holes 46 and movable holes 45 on the mold base 4, the hot melt can be cooled quickly during the shoe nail pouring process, and the top mold device 3 can quickly eject the shoe nail. At the same time, the mold opening device 5 on the mold base 4 can clamp the clamping block 241 and fixing block 242 of the lower mold 232, thereby limiting the heel nail in the heel nail hole 22, effectively preventing the heel nail from shifting during the pouring process and reducing the defect rate of shoe nails.

[0057] like Figure 9 The mold opening device 5 shown includes a first moving block 51, which is detachably connected to the inner mold frame 27. A first placement hole 511 is provided in the middle of the first moving block 51. A second placement hole 441 is provided in the sliding groove 44 at the corresponding position of the first placement hole 511. A slider spring 512 is provided in the first placement hole 511 and the second placement hole 441. A second moving block 52 is provided on the side of the first moving block 51 away from the mold base 4. The first moving block 51 and the second moving block 52 are slidably connected by a connecting rod 53. A moving piece 54 is slidably connected to the end of the second moving block 52 away from the first moving block 51. The second moving block 52 drives the first moving block 51 to move through the moving piece 54, thereby realizing the opening and closing movement between the clamping block and the lower mold 232. When the shoe nail is molded, the slider spring 512 in the first connecting block, together with the inclined guide post 11, moves the first mold core 23 and the second mold core 24 on the inner mold frame 27 to the designated position. The top mold device 3 ejects the shoe nail. Then, the mold opening device 5 moves towards the middle of the mold base 4 through the first connecting block in the sliding groove 44, driving the inner mold frame 27 to re-fit, thereby making the first mold core 23 and the second mold core 24 re-assemble into a complete casting whole, achieving efficient repetitive production.

[0058] like Figure 10The mold base 1 shown has a top block 14 above the inner mold frame 27. A top plate 15 is fixed to the end of the top block 14 away from the mold core 2. A glue inlet pipe 235 is located in the middle of the top plate 15 and connected to the glue inlet 234. A fixing groove 141 is formed in the middle of the top block 14. The top block 14 is fixed to the mold base 4 and the mold core 2 is fastened through the fixing groove 141. An inclined guide post 11 is fixedly connected to the top plate 15. A third inclined guide groove 142 is formed in the top block 14, allowing the inclined guide post 11 to slide with the inner mold frame 27 and the mold base 4 through the third inclined guide groove 142. The inclined guide post 11 and the third inclined guide groove 142 cooperate to ensure that the top block 14 and the top plate 15 remain perpendicular to the mold base 1 during mold opening, reducing the offset of the top block 14 and the top plate 15 when they are lifted, and ensuring the overall stability of the mold base 1. In addition, the fixing groove 141 in the middle of the top block 14 can completely accommodate the mold core 2, which can protect the mold core 2 and stabilize the top cover in the fixing groove 141, making it convenient for the shoe nail in the pouring groove 21 to be quickly demolded, thereby improving production efficiency.

[0059] Several cooling pipes 143 are provided on the side of the top block 14 near the top plate 15. The cooling pipes 143 are close to the fixing groove 141, and cooling interfaces 144 are fixed at both ends of the cooling pipes 143. The cooling pipes 143 cool the mold core 2 through the cooling interfaces 144. The fixing groove 141 is provided with abutment blocks 145 on both sides. The abutment blocks 145 can abut against the upper mold 231. The cover plate 28 is detachably connected between the abutment blocks 145. The abutment blocks 145 are provided with movable grooves 146. The cover plate 28 can be removed from between the abutment blocks 145 through the movable grooves 146. The cover plate 28 is placed in the fixing groove 141. When the top block 14 moves, it can drive the cover plate 28 to move up and down, thereby realizing automatic sealing of the pouring groove 21. At the same time, the abutment blocks 145 can limit the cover plate 28 to prevent the cover plate 28 from shifting in the top block 14 and causing inaccurate sealing of the pouring groove 21. In addition, multiple cooling pipes 143 on the top block 14 are connected to cooling water through cooling interface 144, which can cool the mold core 2 during the casting process, prevent the mold core 2 from overheating and deforming, and reduce the defect rate of the shoe nail casting.

[0060] The specific implementation of this utility model is as follows: The mold frame 1 is placed at the shoe nail production site, and the mold opening device 5 and the top mold device 3 are connected to the drive system. The glue inlet pipe 234 is connected to the glue inlet device. Then, the mold opening device 5, through the cooperation of the slider spring 512 and the inclined guide post 11 in the first moving block 511, moves the top block 14 and the top plate 15 upward. The inner mold frame 27 drives the first mold core 23 and the second mold core 24 to move left and right. At the same time, the clamping block 241 and the fixing block 242 of the lower mold 232 pass through the elastic element 24 in the placement groove 243. 4. After widening the gap in the heel pin hole 22 and placing the heel pin into the heel pin hole 22 through the gating groove 21, the mold opening device 5 moves towards the center of the mold base 4 within the sliding groove 44, causing the inclined guide post 11 to move downward and fit against the inner mold frame 27, so that the first mold core 24 and the second mold core 25 are re-fitted into the mold core 2 as a whole. The wedge block 274 engages to limit the inner mold frame 27, and then the injection tube 235 begins to inject hot melt into the gating channel 25. The hot melt first moves from the main gating channel 251 towards the secondary gating channel 252, and... Then, the hot melt flows into the pouring groove 21 through the flow hole 26 at the end of the auxiliary pouring channel 252 until the pouring groove 21 is filled with hot melt. At this time, the cooling pipe 143 on the top block 14 continuously introduces cooling water through the cooling interface 144 to efficiently cool the mold core 2. After the block is cooled and formed, the wedge block 274 opens, and the mold opening device 5 pulls the inner mold frame 27 to move left and right. Through the first inclined guide groove 271 and the inclined guide post 11, the top block 14 moves upward to the mold. Since the cover plate 28 is detachably connected to the fixed groove 141, the cover plate 28 moves synchronously. Moving upwards, the casting groove 21 is exposed again. When the inner mold frame 27 moves a certain position relative to the slide groove 42 of the mold base 4, the positioning hole 272 engages with the ball 422 in the ball hole 421 to prevent the inner mold frame 27 from moving excessively. Then, the top mold device 3 demolds the shoe nail in the casting groove 21 and the glue column in the casting channel 25 through the movable hole 45 and sliding hole 46 on the mold base 4 via the ejector rod 321 and ejector tube 323. Then, under the action of the return spring 312, the top mold device 3 resets and starts the next round of shoe nail production.

[0061] The embodiments described above are merely examples of several implementations of this utility model, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these modifications and improvements all fall within the protection scope of this utility model.

Claims

1. A point-casting injection automatic dewatering mold for shoe heel nails, comprising a mold frame and a mold core disposed on the mold frame for casting shoe nails, wherein a top mold device is provided below the mold frame, and the mold core has a plurality of casting grooves, the bottom of which is connected to a heel nail hole for placing the heel nail, characterized in that: The mold core is divided into a first mold core and a second mold core. A pouring channel for pouring is provided between the first mold core and the second mold core. A flow hole is opened on the end face of the pouring channel that connects the groove and the heel pin hole. The mold core is provided with a cut on the end face of the heel block near the heel pin through the flow hole. An inner mold frame is provided below the mold core. The first mold core and the second mold core are detachably connected to the inner mold frame. The inner mold frame is provided with a first fixing hole on both sides. The mold core is provided with a second fixing hole corresponding to the first fixing hole. The first mold core and the second mold core are detachably connected to the inner mold frame through the first fixing hole and the second fixing hole. The inner mold frame can separate the first mold core and the second mold core.

2. The automatic dewatering mold for spot casting and injection of shoe heel nails as described in claim 1, characterized in that: The mold frame is provided with several inclined guide pillars above it. The inner mold frame has a first inclined guide groove. The inner mold frame realizes the left and right movement of the first mold core and the second mold core through the first inclined guide groove and the inclined guide pillars. The mold core is covered with a cover plate. The first mold core and the second mold core include an upper mold and a lower mold. The upper mold and the lower mold have connecting holes on both sides. The upper mold and the lower mold maintain a stable relative position through the connecting holes. The pouring groove is located in the upper mold. The cover plate covers the end of the upper mold away from the lower mold and closes the pouring groove. The upper mold has a glue inlet in the middle that communicates with the pouring channel. The glue inlet is connected to a glue inlet pipe. The heel pin hole passes through the bottom of the pouring groove and penetrates the lower mold. The pouring channel is located in the space between the bottom end face of the pouring groove and the end face of the lower mold away from the upper mold. The lower mold has a top mold hole in the middle. The top mold device realizes linkage with the mold core through the top mold hole.

3. The automatic dewatering mold for spot casting and injection of shoe heel nails as described in claim 2, characterized in that: The lower mold is divided into a clamping block and a fixing block. The clamping block and the fixing block can move relative to each other. The heel pin hole is located at the mating part of the clamping block and the fixing block. The two ends of the clamping block and the fixing block are transversely connected by placement grooves. An elastic element is placed in the placement groove. The elastic element is used to separate the clamping block and the fixing block so that the heel pin can be quickly inserted into the heel pin hole.

4. The automatic dewatering mold for spot casting and injection of shoe heel nails as described in claim 3, characterized in that: The gating channel is divided into a main gating channel and a secondary gating channel. The inlet is located in the main gating channel of the upper mold. The flow hole is located at the end of the secondary gating channel away from the main gating channel and communicates with the gating groove. The mold core enters the mold through the inlet located on the main gating channel. When the mold core is being cast, the cover plate and the upper mold move down to achieve a clearance fit with the lower mold so that the gating groove and the heel nail hole fit together as a whole. After the gating is completed in the gating groove, the shoe nail is ejected by the top mold device.

5. The automatic dewatering mold for spot casting and injection of shoe heel nails as described in claim 4, characterized in that: The top mold device includes a top mold plate and a sliding plate. The top mold plate is provided with a top mold column. A return spring is sleeved on the end of the top mold column away from the top mold plate. A top mold rod and an ejector pin rod are fixed on the sliding plate. One end of the top mold rod is in contact with the mold core, and the other end is fixedly connected to the mold frame through the top mold plate. An ejector pin tube is sleeved on the outer periphery of the ejector pin rod. One end of the ejector pin tube abuts against the sliding plate, and the other end is connected to the pouring channel. The end of the ejector pin rod away from the sliding plate is placed below the mold core, and the other end is fixedly connected to the sliding plate. The ejector pin tube and the top mold rod are used to realize the rapid demolding of the shoe nail.

6. The automatic dewatering mold for spot casting and injection of shoe heel nails as described in claim 5, characterized in that: The mold frame is provided with a mold base, and the inner mold frame is located above the mold base. The mold base has a second inclined guide groove, and sliding grooves are provided on both sides of the mold base. The inner mold frame is slidably connected to the mold base through the sliding grooves. The bottom of the sliding groove has a number of ball bearing holes, and ball bearings are provided in the ball bearing holes. The connection between the inner mold frame and the sliding groove is provided with positioning holes at intervals. The positioning holes are used to control the maximum stroke of the mold opening device. The middle of the inner mold frame has a mold core groove for accommodating the mold core. The sides of the inner mold frame have a number of wedge blocks, and the wedge blocks are used to tightly clamp the clamping block and the fixing block.

7. The automatic dewatering mold for spot casting and injection of shoe heel nails as described in claim 6, characterized in that: The mold frame includes a base plate, with fixed plates on both sides of the base plate in the vertical direction. The top mold device is located between the fixed plates. The mold base is fixed to the side of the fixed plate away from the base plate. The mold base has several heat dissipation grooves for dissipating heat from the hot melt during pouring. Sliding grooves are provided on both sides of the mold base between the sliding grooves. Several movable holes for the top mold rods to pass through are provided in the middle of the mold base. Several sliding holes for the ejector pin rods to pass through are provided between the movable holes and the sliding grooves. The top mold device achieves contact connection with the mold core by inserting the ejector pin rods and the top mold rods through the movable holes and sliding holes. An opening device is provided in the sliding groove for automatically opening and closing the clamping block and the fixed block.

8. The automatic dewatering mold for spot casting and injection of shoe heel nails as described in claim 7, characterized in that: The mold opening device includes a first movable block, which is detachably connected to the inner mold frame. A first placement hole is provided in the middle of the first movable block. A second placement hole is provided in the sliding groove at the corresponding position of the first placement hole. A slider spring is provided in the first placement hole and the second placement hole. A second movable block is provided on the side of the first movable block away from the mold base. The first movable block and the second movable block are slidably connected by a connecting rod. A movable piece is slidably connected to the end of the second movable block away from the first movable block. The second movable block drives the movement of the first movable block through the movable piece, thereby realizing the opening and closing movement between the clamping block and the lower module.

9. The automatic dewatering mold for spot casting and injection of shoe heel nails as described in claim 8, characterized in that: The mold frame has a top block above the inner mold frame. A top plate is fixed to the end of the top block away from the mold core. The glue inlet pipe is located in the middle of the top plate and connected to the glue inlet. A fixing groove is opened in the middle of the top block. The top block is fixed to the mold base and the mold core is fastened through the fixing groove. The inclined guide post is fixedly connected to the top plate. The top block has a third inclined guide groove. The inclined guide post achieves sliding connection with the inner mold frame and the mold base through the third inclined guide groove.

10. The automatic dewatering mold for spot casting and injection of shoe heel nails according to claim 9, characterized in that: The top block has several cooling pipes on the side near the top plate. The cooling pipes are close to the fixing groove and have cooling interfaces fixed at both ends. The cooling pipes cool the mold core through the cooling interfaces. The fixing groove has abutment blocks on both sides. The abutment blocks can abut against the upper mold. The cover plate can be placed between the abutment blocks. The abutment blocks have movable grooves. The cover plate can be removed from between the abutment blocks through the movable grooves.

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