Multi-mold shoe tree injection molding equipment

Abstract

The multi-mold shoe tree injection molding equipment comprises an injection machine and a supporting table, a mold mechanism is arranged on the side, close to the injection machine, of the top of the supporting table, and a fixing frame is fixedly connected to the top of the supporting table. Belongs to the technical field of injection molding equipment. According to the multi-mold shoe tree injection molding equipment, an output shaft of a servo motor rotates in the forward direction, a first gear and a second gear drive a first rotating shaft and a rotating block to rotate, the rotating block drives a first sliding rod to enter a first sliding groove in a rotating plate, and the first sliding rod extrudes the inner wall of the first sliding groove, so that the rotating plate drives a first shaft sleeve to rotate; the first shaft sleeve drives the shoe tree bodies to rotate through the rotating frame, the rotating block rotates by one circle, the rotating frame rotates by one sixth circle, six different shoe tree bodies are installed on the rotating frame, one shoe tree body can be automatically replaced every time the rotating block rotates by one circle in the forward direction, more convenience is achieved, and meanwhile the small-batch and multi-batch order requirements can be met.

Description

Technical Field

[0001] This invention relates to the field of injection molding equipment technology, and more specifically, to a multi-mold shoe last injection molding equipment. Background Technology

[0002] Shoe last injection molding equipment is a specialized automated system for producing plastic shoe lasts using injection molding. Its core function is to heat and melt thermoplastic plastics (such as ABS, PVC, PP, etc.), then inject the melted plastic into a shoe last mold cavity under high pressure. After cooling and solidification, a shoe last product conforming to the shape of a foot is formed. This type of equipment is suitable for shoe lasts characterized by "complex shapes, diverse sizes, and high precision requirements."

[0003] In the process of continuous mass production, different shoe last molds need to be changed accordingly due to different product sizes (such as sizes 38-44) and different styles (such as round toe, pointed toe, low-top, high-top). However, some existing shoe last injection molding equipment still requires manual installation of the shoe last molds into the clamping mechanism, which can easily lead to production interruptions due to frequent mold changes in single-mold equipment, and cannot meet the needs of small-batch, multi-batch orders. Therefore, we provide a multi-mold shoe last injection molding equipment. Summary of the Invention

[0004] The purpose of this invention is to provide a multi-mold shoe last injection molding equipment to solve the problems mentioned in the background art above:

[0005] Some existing shoe last injection molding equipment still requires manual installation of the shoe last mold onto the clamping mechanism, which can easily lead to production interruptions due to frequent mold changes for single-mold equipment, making it impossible to meet the demand for small-batch, multi-order orders.

[0006] To achieve the above objectives, the present invention provides the following technical solution:

[0007] A multi-mold shoe last injection molding equipment includes an injection machine and a support platform. A mold mechanism is provided on the top of the support platform near the injection machine. A fixed frame is fixedly connected to the top of the support platform. A first bushing is rotatably connected inside the fixed frame. A rotating frame is fitted outside the first bushing and is fixedly connected to the first bushing. A second bushing is fixedly connected inside the rotating frame. There are six second bushings in total, symmetrically distributed. A second movable shaft is slidably connected inside the second bushing. A clamping head is fixedly connected to the bottom of the second movable shaft. A shoe last body is clamped inside the clamping head. A rotating mechanism is provided on the outside of the fixed frame near the first bushing. A lifting mechanism is provided on the outside of the fixed frame away from the first bushing. The lifting mechanism is mainly used to drive the shoe last body to move up and down, realizing the separation and connection of the shoe last body and the bottom mold.

[0008] Preferably, a limiting groove is provided inside the second movable shaft, and a limiting block is slidably connected inside the limiting groove. The limiting block is fixedly connected to the second bushing. There are two limiting grooves in total, and the two limiting grooves are symmetrically distributed. The two sets of limiting grooves and limiting blocks can prevent misalignment between the shoe last body and the bottom mold.

[0009] Preferably, the mold mechanism includes a bottom mold, which is fixedly connected to a support platform. Electric push rods are fixedly connected to the top of the support platform and to the corresponding two sides of the bottom mold. The output end of one of the electric push rods is fixedly connected to the left mold, and the output end of the other electric push rod is fixedly connected to the right mold. The bottom mold, the left mold, and the right mold are all used in conjunction with the shoe last body. An injection hole is provided on one side of the bottom mold.

[0010] Preferably, the rotating mechanism includes a mounting frame, which is fixedly connected to a fixed frame. A first rotating shaft is rotatably connected inside the mounting frame. A first bevel gear is fixedly connected to the bottom of the first rotating shaft. A rotating block is fixedly connected to the top of the first rotating shaft. A first sliding rod is fixedly connected to the top of the rotating block. A rotating plate is fitted outside the first bushing and below the rotating frame. The rotating plate is fixedly connected to the first bushing. A first sliding groove is formed inside the rotating plate. The first sliding groove works in conjunction with the first sliding rod. There are six first sliding grooves in total, which are symmetrically distributed. When the rotating block rotates, it can drive the first sliding rod to engage with the first sliding groove on the rotating plate. As the rotating block continues to rotate, the rotating plate can drive the first bushing to rotate. The rotating block, the first sliding rod, the rotating plate, and the first sliding groove form a fixed-angle rotating mechanism.

[0011] Preferably, the lifting mechanism includes a second rotating shaft, which is rotatably connected to a fixed frame. A second bevel gear is sleeved on the outside of the second rotating shaft, and the second bevel gear is fixedly connected to the second rotating shaft. The second bevel gear meshes with a first bevel gear. Rotating plates are fixedly connected to both ends of the second rotating shaft. A third rotating shaft is rotatably connected inside the fixed frame. Swing plates are fixedly connected to both ends of the third rotating shaft. An annular plate is fixedly connected to the outer end of the swing plate away from the third rotating shaft. A second sliding groove is formed inside the annular plate. A second sliding rod is slidably connected inside the second sliding groove. The second sliding rod is fixedly connected to the rotating plate. The second sliding groove on the annular plate is also an annular structure.

[0012] Preferably, a baffle is rotatably connected to the outside of the swing plate, a stop bar is fixedly connected to the outside of the annular plate and below the baffle, and a spring plate is fixedly connected to the outside of the swing plate and above the baffle. The spring plate and the baffle are used in conjunction. Under the elastic force of the spring plate, the baffle and the stop bar are pressed together. When the rotating plate rotates in the opposite direction, the second sliding rod on the rotating plate will abut against the spring plate and drive the annular plate and the swing plate to swing downward by squeezing the spring plate.

[0013] Preferably, a first movable shaft is slidably connected inside the first bushing, a movable frame is fixedly connected to the bottom of the first movable shaft, a lifting plate is fixedly connected to the top of the movable frame, a third sliding groove is provided inside the lifting plate, a third sliding rod is slidably connected inside the third sliding groove, the third sliding rod is fixedly connected to the annular plate, a guide rod is slidably connected inside the movable frame, one end of the guide rod is fixedly connected to the fixed frame, and the other end of the guide rod is fixedly connected to the support platform. There are two guide rods in total, and the two guide rods are symmetrically distributed. The guide rods limit the movable frame and ensure that the movable frame moves smoothly up and down. During the process, the movable frame drives the movable plate to move up and down through the first movable shaft. When the movable plate moves downward, the movable plate can drive the second movable shaft to move downward through the fourth sliding groove and the fourth sliding rod.

[0014] Preferably, a movable plate is fixedly connected to the top of the first movable shaft, a fixed plate is provided above the movable plate, a fixed rod is provided between the fixed plate and the support platform, one end of the fixed rod is fixedly connected to the fixed plate, and the other end of the fixed rod is fixedly connected to the support platform. A groove is formed inside the fixed plate, which is used in conjunction with the movable plate. A fourth sliding groove is formed inside both the fixed plate and the movable plate. A fourth sliding rod is slidably connected inside the fourth sliding groove. The fourth sliding rod is fixedly connected to the second movable shaft. The movable plate can enter the groove. At this time, the two fourth sliding grooves on the movable plate and the fixed plate are connected to form a complete annular groove.

[0015] Preferably, a servo motor is fixedly connected to the bottom of the fixed frame. The output shaft of the servo motor passes vertically through the fixed frame and extends to the top of the fixed frame. The output shaft of the servo motor is rotatably connected to the fixed frame. A first gear is fixedly connected to the output end of the servo motor. A second gear is sleeved outside the first rotating shaft and located between the rotating block and the first bevel gear. The second gear is fixedly connected to the first rotating shaft and meshes with the first gear. Power transmission is achieved through the meshing of the first gear and the second gear, making the overall structure more compact.

[0016] Compared with the prior art, the beneficial effects of the present invention are:

[0017] 1) When using this multi-mold shoe last injection molding equipment, the servo motor output shaft rotates in the forward direction, driving the first rotating shaft and rotating block to rotate through the first gear and the second gear. The rotating block drives the first sliding rod into the first groove on the rotating plate. The first sliding rod presses against the inner wall of the first groove, causing the rotating plate to drive the first bushing to rotate. The first bushing then drives the shoe last body to rotate through the rotating frame. When the rotating block rotates one revolution, the rotating frame rotates one-sixth of a revolution. Since six different shoe last bodies are installed on the rotating frame, the rotating block can automatically change to a different shoe last body for each revolution in the forward direction. Compared with manual installation, this is more convenient and can meet the needs of small batch and multiple batch orders.

[0018] 2) When using the Benduo mold shoe last injection molding equipment, the servo motor rotates in the reverse direction, and the rotating block also rotates in the reverse direction. At this time, the first sliding rod on the rotating block will not enter the first sliding groove on the rotating plate until the second sliding rod abuts against the spring piece. Through the compression of the spring piece by the second sliding rod, the annular plate and the swing plate can be driven to swing downward. The third sliding rod compresses the third sliding groove, and the lifting plate drives the movable frame to move downward. The movable frame then drives the movable plate to move downward through the first movable shaft. Finally, the movable plate drives the second movable shaft to move downward through the fourth sliding groove and the fourth sliding rod. The second movable shaft drives the shoe last body to move downward and combine with the bottom mold through the clamping head. The servo motor rotates in the reverse direction again to drive the shoe last body to reset. This can realize the automatic combination and separation of the shoe last body and the bottom mold, and achieve the purpose of automatic loading and unloading.

[0019] 3) When the multi-mold shoe last injection molding equipment is in use, the movable plate can enter the groove. At this time, the two fourth sliding grooves on the movable plate and the fixed plate are connected to form a complete annular groove. When the rotating frame rotates, the fourth sliding rod on the second movable shaft will slide in the fourth sliding groove to ensure that the fourth sliding rod always maintains the structure with the fourth sliding groove, and at the same time will not affect the normal rotation of the rotating frame. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0021] Figure 2 This is a schematic diagram of the groove structure of the present invention;

[0022] Figure 3 This is a schematic diagram of the structure of the rotating plate of the present invention;

[0023] Figure 4 This is a schematic diagram of the structure of the movable frame of the present invention;

[0024] Figure 5 This is a schematic diagram of the rotating plate of the present invention;

[0025] Figure 6 This is a schematic diagram of the spring sheet of the present invention;

[0026] Figure 7 This is a schematic diagram of the structure of the fourth slide bar of the present invention;

[0027] Figure 8 This is a schematic diagram of the structure of the limiting block of the present invention;

[0028] Figure 9 This is a schematic diagram of the structure of the fixing rod of the present invention;

[0029] Figure 10 This is a schematic diagram of the structure of the fixing plate of the present invention.

[0030] Explanation of the numbers in the diagram: 1. Injection molding machine; 2. Support platform; 3. Fixing frame; 4. First bushing; 5. Rotating frame; 6. Second bushing; 7. Second movable shaft; 8. Clamping head; 9. Shoe last body; 10. Mold mechanism; 1001. Bottom mold; 1002. Electric push rod; 1003. Left mold; 1004. Right mold; 11. Rotating mechanism; 1101. Mounting frame; 1102. First rotating shaft; 1103. First bevel gear; 1104. Rotating block; 1105. First sliding rod; 1106. Rotating plate; 1107. First slide groove; 12. Lifting mechanism; 1201. Second rotating shaft; 1202. Second bevel gear; 1203. Rotating plate ; 1204, Third rotating shaft; 1205, Swing plate; 1206, Annular plate; 1207, Second slide groove; 1208, Second slide rod; 1209, Baffle plate; 1210, Stop bar; 1211, Spring piece; 1212, First movable shaft; 1213, Movable frame; 1214, Lifting plate; 1215, Third slide groove; 1216, Third slide rod; 1217, Guide rod; 1218, Movable plate; 1219, Fixed plate; 1220, Fixed rod; 1221, Groove; 1222, Fourth slide groove; 1223, Fourth slide rod; 13, Limiting groove; 14, Limiting block; 15, Servo motor; 16, First gear; 17, Second gear. Detailed Implementation

[0031] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0032] Please see Figures 1 to 10A multi-mold shoe last injection molding equipment includes an injection machine 1 and a support platform 2. A mold mechanism 10 is provided on the top of the support platform 2 near the injection machine 1. A fixed frame 3 is fixedly connected to the top of the support platform 2. A first bushing 4 is rotatably connected inside the fixed frame 3. A rotating frame 5 is fitted outside the first bushing 4 and is fixedly connected to the first bushing 4. A second bushing 6 is fixedly connected inside the rotating frame 5. There are six second bushings 6 in total, which are symmetrically distributed. A second bushing 6 is slidably connected inside the second bushing 6. The bottom of the movable shaft 7 is fixedly connected to a clamping head 8, and the shoe last body 9 is clamped inside the clamping head 8. A rotating mechanism 11 is provided on the outside of the fixed frame 3 near the first bushing 4. The rotating mechanism 11 is mainly used to drive the rotating frame 5 to rotate as a whole, so that different shoe last bodies 9 can be selected and replaced. A lifting mechanism 12 is provided on the outside of the fixed frame 3 away from the first bushing 4. The lifting mechanism 12 is mainly used to drive the shoe last body 9 to move up and down, so as to realize the separation and connection of the shoe last body 9 and the bottom mold 1001.

[0033] Furthermore, a limiting groove 13 is provided inside the second movable shaft 7, and a limiting block 14 is slidably connected inside the limiting groove 13. The limiting block 14 is fixedly connected to the second bushing 6. There are two limiting grooves 13 in total, and the two limiting grooves 13 are symmetrically distributed. The two sets of limiting grooves 13 and limiting blocks 14 are used to prevent the second movable shaft 7 from rotating inside the second bushing 6, which can prevent misalignment between the shoe last body 9 and the bottom mold 1001.

[0034] Furthermore, the mold mechanism 10 includes a bottom mold 1001, which is fixedly connected to the support platform 2. Electric push rods 1002 are fixedly connected to the top of the support platform 2 and to the corresponding two sides of the bottom mold 1001. The output end of one electric push rod 1002 is fixedly connected to the left mold 1003, and the output end of the other electric push rod 1002 is fixedly connected to the right mold 1004. The bottom mold 1001, the left mold 1003, and the right mold 1004 are all used in conjunction with the shoe last body 9. An injection hole is opened on one side of the bottom mold 1001. After the shoe last body 9 enters the bottom mold 1001, the electric push rod 1002 drives the left mold 1003 and the right mold 1004 to move and close the mold. The injection machine 1 drives the injection head to correspond with the injection hole and inject. After the raw material solidifies, it can be demolded.

[0035] Furthermore, the rotating mechanism 11 includes a mounting bracket 1101, which is fixedly connected to the fixed bracket 3. A first rotating shaft 1102 is rotatably connected inside the mounting bracket 1101. A first bevel gear 1103 is fixedly connected to the bottom of the first rotating shaft 1102. A rotating block 1104 is fixedly connected to the top of the first rotating shaft 1102. A first sliding rod 1105 is fixedly connected to the top of the rotating block 1104. A rotating plate 1106 is fitted outside the first bushing 4 and below the rotating bracket 5. The rotating plate 1106 is fixedly connected to the first bushing 4. A first sliding groove 1107 is formed inside the rotating plate 1106. The first sliding groove 1107 cooperates with the first sliding rod 1105. There are six first sliding grooves 1107 in total. The components 107 are symmetrically distributed. When the rotating block 1104 rotates, it can drive the first sliding rod 1105 to engage with the first sliding groove 1107 on the rotating plate 1106. As the rotating block 1104 continues to rotate, the rotating plate 1106 can drive the first bushing 4 to rotate. The rotating block 1104, the first sliding rod 1105, the rotating plate 1106 and the first sliding groove 1107 form a fixed-angle rotation mechanism for selecting and replacing different shoe last bodies 9. When the rotating block 1104 rotates one revolution clockwise, the rotating plate 1106 rotates one-sixth revolution, and the shoe last body 9 is replaced once. During this process, the position of the rotating plate 1203 is fixed. When the rotating plate 1203 rotates one-quarter revolution counterclockwise, the annular plate 1206 and the swing plate 1205 swing downward to the lowest position.

[0036] Furthermore, the lifting mechanism 12 includes a second rotating shaft 1201, which is rotatably connected to the fixed frame 3. A second bevel gear 1202 is sleeved on the outside of the second rotating shaft 1201 and is fixedly connected to the second rotating shaft 1201. The second bevel gear 1202 meshes with a first bevel gear 1103. Rotating plates 1203 are fixedly connected to both ends of the second rotating shaft 1201. A third rotating shaft 1204 is rotatably connected inside the fixed frame 3, and swing plates 12 are fixedly connected to both ends of the third rotating shaft 1204. 05. An annular plate 1206 is fixedly connected to the outer end of the swing plate 1205 away from the third rotating shaft 1204. A second sliding groove 1207 is opened inside the annular plate 1206. A second sliding rod 1208 is slidably connected inside the second sliding groove 1207. The second sliding rod 1208 is fixedly connected to the rotating plate 1203. The second sliding groove 1207 opened on the annular plate 1206 is also an annular structure. The servo motor 15 can drive the second rotating shaft 1201 to rotate through the first bevel gear 1103 and the second bevel gear 1202.

[0037] Furthermore, a baffle 1209 is rotatably connected to the outside of the swing plate 1205, a stop rod 1210 is fixedly connected to the outside of the annular plate 1206 and below the baffle 1209, and a spring piece 1211 is fixedly connected to the outside of the swing plate 1205 and above the baffle 1209. The spring piece 1211 works in conjunction with the baffle 1209. Under the elastic force of the spring piece 1211, the baffle 1209 and the stop rod 1210 are pressed together. When the rotating plate 1203 rotates in the forward direction, the second sliding rod 1208 on the rotating plate 1203 can push the baffle 1209 away. When the rotating plate 1203 rotates in the reverse direction, the second sliding rod 1208 on the rotating plate 1203 will abut against the spring piece 1211 and drive the annular plate 1206 and the swing plate 1205 to swing downward by squeezing the spring piece 1211.

[0038] Furthermore, a first movable shaft 1212 is slidably connected inside the first bushing 4. A movable frame 1213 is fixedly connected to the bottom of the first movable shaft 1212. A lifting plate 1214 is fixedly connected to the top of the movable frame 1213. A third sliding groove 1215 is provided inside the lifting plate 1214. A third sliding rod 1216 is slidably connected inside the third sliding groove 1215. The third sliding rod 1216 is fixedly connected to the annular plate 1206. A guide rod 1217 is slidably connected inside the movable frame 1213. One end of the guide rod 1217 is fixedly connected to the fixed frame 3. The other end of 217 is fixedly connected to the support platform 2. There are two guide rods 1217, which are symmetrically distributed. The guide rods 1217 limit the movement of the movable frame 1213 and ensure that the movable frame 1213 moves up and down smoothly. During the process, the movable frame 1213 drives the movable plate 1218 to move up and down through the first movable shaft 1212. When the movable plate 1218 moves down, it can drive the second movable shaft 7 to move down through the fourth slide groove 1222 and the fourth slide rod 1223, and finally drive the shoe last body 9 to combine with the bottom mold 1001.

[0039] Furthermore, a movable plate 1218 is fixedly connected to the top of the first movable shaft 1212, and a fixed plate 1219 is provided above the movable plate 1218. A fixed rod 1220 is provided between the fixed plate 1219 and the support platform 2. One end of the fixed rod 1220 is fixedly connected to the fixed plate 1219, and the other end of the fixed rod 1220 is fixedly connected to the support platform 2. A groove 1221 is provided inside the fixed plate 1219, and the groove 1221 is used in conjunction with the movable plate 1218. A fourth sliding groove 1222 is provided inside both the fixed plate 1219 and the movable plate 1218. A fourth sliding rod 1223 is slidably connected inside the fourth sliding groove 1222. The fourth sliding rod 1223 is fixedly connected to the second movable shaft 7. There are a total of six fixed rods 1220, which are symmetrically distributed. The movable plate 1218 can enter the groove 1221. At this time, the two fourth sliding grooves 1222 on the movable plate 1218 and the fixed plate 1219 are connected to form a complete annular groove.

[0040] Furthermore, a servo motor 15 is fixedly connected to the bottom of the fixed frame 3. The output shaft of the servo motor 15 vertically passes through the fixed frame 3 and extends to the top of the fixed frame 3. The output shaft of the servo motor 15 is rotatably connected to the fixed frame 3. A first gear 16 is fixedly connected to the output end of the servo motor 15. A second gear 17 is sleeved outside the first rotating shaft 1102 and between the rotating block 1104 and the first bevel gear 1103. The second gear 17 is fixedly connected to the first rotating shaft 1102 and meshes with the first gear 16. Power transmission is achieved through the meshing of the first gear 16 and the second gear 17, making the overall structure more compact and saving space. The servo motor 15, in conjunction with the first gear 16 and the second gear 17, can achieve high-precision angle positioning and rotation control. The diameter of the first gear 16 is smaller than that of the second gear 17, which can output greater torque.

[0041] The invention is used in the following steps: When the multi-mold shoe last injection molding equipment is in use, the output shaft of the servo motor 15 rotates in the forward direction, which drives the first rotating shaft 1102 to rotate in the forward direction through the first gear 16 and the second gear 17. The first rotating shaft 1102 drives the rotating block 1104 to rotate, so that the rotating block 1104 drives the first sliding rod 1105 into the first sliding groove 1107 on the rotating plate 1106. As the rotating block 1104 continues to rotate, the first sliding rod 1105 presses against the inner wall of the first sliding groove 1107, thereby driving the first bushing 4 to rotate through the rotating plate 1106. The first bushing 4 then drives the shoe last body 9 to rotate through the rotating frame 5. For every revolution of the rotating block 1104, the rotating frame 5 rotates. One-sixth of a revolution, because the rotating frame 5 is equipped with six different shoe last bodies 9, the rotating block 1104 can automatically change to a different shoe last body 9 every time it rotates one revolution in the forward direction. Compared with manual installation, this is more convenient and can meet the needs of small-batch, multi-batch orders. During the forward rotation of the first rotating shaft 1102, although it will drive the second rotating shaft 1201 to rotate through the first bevel gear 1103 and the second bevel gear 1202, the second rotating shaft 1201 will drive the second sliding rod 1208 to slide in the second sliding groove 1207 on the annular plate 1206 through the rotating plate 1203. At this time, the second sliding rod 1208 can also stop the baffle 1209 on the annular plate 1206. And the spring piece 1211 is pushed open. At this time, the annular plate 1206 and the swing plate 1205 will not swing. When it is necessary to control the combination of the shoe last body 9 and the bottom mold 1001, the servo motor 15 rotates in the opposite direction. Correspondingly, the rotating block 1104 also rotates in the opposite direction. The first slide rod 1105 on the rotating block 1104 will not enter the first slide groove 1107 on the rotating plate 1106. At this time, the rotating plate 1203 will also drive the second slide rod 1208 to rotate in the opposite direction. The second slide rod 1208 will abut against the spring piece 1211. Through the compression of the spring piece 1211 by the second slide rod 1208, the annular plate 1206 and the swing plate 1205 can be driven to swing downward, so that... The third slide bar 1216 on the annular plate 1206 presses against the inner wall of the third slide groove 1215, thereby driving the movable frame 1213 to move downward through the lifting plate 1214. The movable frame 1213 then drives the movable plate 1218 to move downward through the first movable shaft 1212. Finally, the movable plate 1218 drives the second movable shaft 7 to move downward through the fourth slide groove 1222 and the fourth slide bar 1223. The second movable shaft 7 drives the shoe last body 9 to move downward through the clamping head 8 and combine with the bottom mold 1001. The servo motor 15 rotates in the opposite direction again to drive the shoe last body 9 to reset. This can realize the automatic combination and separation of the shoe last body 9 and the bottom mold 1001, and achieve the purpose of automatic loading and unloading.

[0042] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely preferred examples and are not intended to limit the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the present invention as claimed. The scope of protection of the present invention is defined by the appended claims and their equivalents.

Claims

1. A multi-mold shoe last injection molding equipment, comprising an injection machine (1) and a support platform (2), wherein a mold mechanism (10) is provided on the top of the support platform (2) near the side of the injection machine (1), characterized in that: The top of the support platform (2) is fixedly connected to a fixed frame (3). The inside of the fixed frame (3) is rotatably connected to a first bushing (4). The outside of the first bushing (4) is fitted with a rotating frame (5). The rotating frame (5) is fixedly connected to the first bushing (4). The inside of the rotating frame (5) is fixedly connected to a second bushing (6). There are six second bushings (6) in total. The six second bushings (6) are symmetrically distributed. The inside of the second bushing (6) is slidably connected to a second movable shaft (7). The bottom of the second movable shaft (7) is fixedly connected to a clamping head (8). The inside of the clamping head (8) is engaged with a shoe last body (9). The outside of the fixed frame (3) near the first bushing (4) is provided with a rotating mechanism (11). The outside of the fixed frame (3) away from the first bushing (4) is provided with a lifting mechanism (12).

2. The multi-mold shoe last injection molding equipment according to claim 1, characterized in that: The second movable shaft (7) has a limiting groove (13) inside, and a limiting block (14) is slidably connected inside the limiting groove (13). The limiting block (14) is fixedly connected to the second bushing (6). There are two limiting grooves (13), and the two limiting grooves (13) are symmetrically distributed.

3. The multi-mold shoe last injection molding equipment according to claim 1, characterized in that: The mold mechanism (10) includes a bottom mold (1001), which is fixedly connected to a support platform (2). Electric push rods (1002) are fixedly connected to the top of the support platform (2) and to the corresponding two sides of the bottom mold (1001). The output end of one of the electric push rods (1002) is fixedly connected to the left mold (1003), and the output end of the other electric push rod (1002) is fixedly connected to the right mold (1004). The bottom mold (1001), the left mold (1003), and the right mold (1004) are all used in conjunction with the shoe last body (9).

4. The multi-mold shoe last injection molding equipment according to claim 1, characterized in that: The rotating mechanism (11) includes a mounting frame (1101), which is fixedly connected to the fixed frame (3). A first rotating shaft (1102) is rotatably connected inside the mounting frame (1101). A first bevel gear (1103) is fixedly connected to the bottom of the first rotating shaft (1102). A rotating block (1104) is fixedly connected to the top of the first rotating shaft (1102). A first sliding rod (1105) is fixedly connected to the top of the rotating block (1104). A rotating plate (1106) is sleeved outside the first bushing (4) and below the rotating frame (5). The rotating plate (1106) is fixedly connected to the first bushing (4). A first sliding groove (1107) is opened inside the rotating plate (1106). The first sliding groove (1107) is used in conjunction with the first sliding rod (1105). There are six first sliding grooves (1107) in total, and the six first sliding grooves (1107) are symmetrically distributed.

5. The multi-mold shoe last injection molding equipment according to claim 4, characterized in that: The lifting mechanism (12) includes a second rotating shaft (1201), which is rotatably connected to the fixed frame (3). A second bevel gear (1202) is sleeved on the outside of the second rotating shaft (1201). The second bevel gear (1202) is fixedly connected to the second rotating shaft (1201) and meshes with a first bevel gear (1103). Rotating plates (1203) are fixedly connected to both ends of the second rotating shaft (1201). The inner part of the fixed frame (3) The part is rotatably connected to a third rotating shaft (1204), and both ends of the third rotating shaft (1204) are fixedly connected to swing plates (1205). The outer end of the swing plate (1205) away from the third rotating shaft (1204) is fixedly connected to an annular plate (1206). The annular plate (1206) has a second sliding groove (1207) inside, and a second sliding rod (1208) is slidably connected inside the second sliding groove (1207). The second sliding rod (1208) is fixedly connected to the rotating plate (1203).

6. The multi-mold shoe last injection molding equipment according to claim 5, characterized in that: A baffle plate (1209) is rotatably connected to the outside of the swing plate (1205). A stop bar (1210) is fixedly connected to the outside of the annular plate (1206) and below the baffle plate (1209). A spring piece (1211) is fixedly connected to the outside of the swing plate (1205) and above the baffle plate (1209). The spring piece (1211) works in conjunction with the baffle plate (1209).

7. The multi-mold shoe last injection molding equipment according to claim 5, characterized in that: The first bushing (4) is internally slidably connected to a first movable shaft (1212). The bottom of the first movable shaft (1212) is fixedly connected to a movable frame (1213). The top of the movable frame (1213) is fixedly connected to a lifting plate (1214). The lifting plate (1214) is internally provided with a third sliding groove (1215). The third sliding groove (1215) is internally slidably connected to a third sliding rod (1216). The third sliding rod (1216) is fixedly connected to an annular plate (1206). The movable frame (1213) is internally slidably connected to a guide rod (1217). One end of the guide rod (1217) is fixedly connected to a fixed frame (3). The other end of the guide rod (1217) is fixedly connected to a support platform (2). There are two guide rods (1217), and the two guide rods (1217) are symmetrically distributed.

8. The multi-mold shoe last injection molding equipment according to claim 7, characterized in that: A movable plate (1218) is fixedly connected to the top of the first movable shaft (1212). A fixed plate (1219) is provided above the movable plate (1218). A fixed rod (1220) is provided between the fixed plate (1219) and the support platform (2). One end of the fixed rod (1220) is fixedly connected to the fixed plate (1219), and the other end of the fixed rod (1220) is fixedly connected to the support platform (2). A groove (1221) is provided inside the fixed plate (1219). The groove (1221) is used in conjunction with the movable plate (1218). A fourth sliding groove (1222) is provided inside both the fixed plate (1219) and the movable plate (1218). A fourth sliding rod (1223) is slidably connected inside the fourth sliding groove (1222). The fourth sliding rod (1223) is fixedly connected to the second movable shaft (7).

9. The multi-mold shoe last injection molding equipment according to claim 4, characterized in that: A servo motor (15) is fixedly connected to the bottom of the fixed frame (3). The output shaft of the servo motor (15) passes vertically through the fixed frame (3) and extends to the top of the fixed frame (3). The output shaft of the servo motor (15) is rotatably connected to the fixed frame (3). A first gear (16) is fixedly connected to the output end of the servo motor (15). A second gear (17) is sleeved outside the first rotating shaft (1102) and between the rotating block (1104) and the first bevel gear (1103). The second gear (17) is fixedly connected to the first rotating shaft (1102). The second gear (17) meshes with the first gear (16).

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