Shoe sole double-layer mold

Abstract

The utility model discloses a double-layer mold for a sole. The double-layer mold comprises a rack, an injection mold, an unlocking structure and a bearing structure, through the arrangement of the injection mold, the unlocking structure and the bearing structure, namely the injection molds arranged in the first moving frame and the second moving frame respectively, a double-layer injection molding structure can be formed, so that double-layer injection molding processing of a shoe sole is met, the injection molding efficiency of the shoe sole is improved, and meanwhile, by matching with rotation of a trigger strip in the unlocking structure, the service life of the shoe sole is prolonged. The supporting structure can be connected with a locking piece arranged on the rear side of the injection mold to trigger, so that the injection mold can be conveniently opened, injection-molded shoe soles are prevented from being bonded, and the material taking efficiency is prevented from being influenced, and when the injection mold is folded and opened, the supporting structure can assist in supporting the second mold to ensure the folding opening and closing stability of the second mold, so that the efficient shoe sole injection mold can be formed, and the production efficiency is improved. And the injection molding efficiency and the subsequent material taking efficiency are improved.

Description

Technical Field

[0001] This utility model relates to the field of shoe sole mold technology, specifically a double-layer shoe sole mold. Background Technology

[0002] In the shoe manufacturing process, the sole and upper are sometimes manufactured separately, and then the sole and upper are glued or sewn together. In the sole manufacturing process, injection molding is mostly used, so special sole molds are an essential tool.

[0003] An existing shoe sole injection mold with application number CN202221349853.2 includes a frame. A side support is welded and fixed to the left side of the frame. A first air pump is welded and fixed to the inner side of the side support. A first pneumatic rod is welded and fixed to the output end of the first air pump. Second air pumps are welded and fixed to the upper and lower ends of the front and back of the frame. A second pneumatic rod is rotatably connected to the output end of the second air pump inside the frame. A transition block is rotatably connected to the end of the second pneumatic rod away from the second air pump. An upper mold base and a lower mold base are welded and fixed to the end faces of the transition blocks on the upper and lower sides, respectively. A molding cavity is opened on the bottom surface of the upper mold base and the upper surface of the lower mold base. A mold core is welded and fixed inside the molding cavity. This shoe sole injection mold can inject casting liquid into the molding cavity and form the mold. The molded shoe sole can be quickly demolded through the upper mold base and the lower mold base.

[0004] The existing molds described above use a single upper and lower mold base for injection molding of shoe soles, resulting in low overall processing efficiency. For injection molds with multiple workstations, the opening and closing of the mold during material discharge is generally an upper and lower opening action. Due to adhesion, the shoe soles molded in this way are more likely to stick to the outside of the first mold, which affects the demolding efficiency of the molded shoe soles. If external force robotic arms are used to remove the shoe soles from the mold, it is easy to cause deformation of the shoe soles and may damage them. Utility Model Content

[0005] The purpose of this invention is to provide a double-layer mold for shoe soles to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: a double-layer mold for shoe soles, comprising a frame, cylinders, a first movable frame, vertical rods, rubber rings, a second movable frame, a receiving plate, an injection mold, an unlocking structure, and a supporting structure. Cylinders are installed on both the left and right sides of the frame, and the upper ends of the cylinders on both sides are connected to the first movable frame. Vertical rods are installed on the lower ends of both sides of the first movable frame, and rubber rings are provided on the outer sides of the lower ends of the vertical rods on both sides. The second movable frame is installed on both sides inside the second movable frame, and the two sides of the second movable frame are inserted into the vertical rods. A receiving plate is fastened to the middle of the frame. An injection mold is installed inside both the first and second movable frames. An unlocking structure is installed on the rear side of the upper end of the frame, and a supporting structure is installed at both ends of the front side of the frame.

[0007] Preferably, the injection mold includes a first mold, a second mold, a hinge, and a locking element. The first mold is installed inside the first movable frame or the second movable frame, and the second mold is provided at the lower end of the first mold. The front side of the second mold is connected to the front side of the first mold through a hinge, and the rear side of the second mold and the first mold are equipped with locking elements.

[0008] Preferably, the locking component includes a mounting groove, a metal block, a locking plate, a spring, a protruding rod, a connecting block, bolts, and a locking hole. The mounting groove is located at the upper rear side of the first mold, and a metal block is installed at the upper end of the mounting groove. The locking plate is movably built into the mounting groove, and one side of the locking plate is connected to the spring. A protruding rod is welded and fixed to the other side of the locking plate. The connecting block is located at the rear side of the second mold, and the bottom sides of the second mold are locked to the second mold by bolts. A locking hole is provided inside the second mold, and the inside of the locking hole is connected to and locked to the locking plate.

[0009] Preferably, the unlocking structure includes a first motor, a first rotating rod, a trigger bar, and a stabilizing member. The first motor is installed on the rear side of the upper end of the frame, and the output end of the first motor is connected to the first rotating rod. Trigger bars are installed on both sides of the outer end of the first rotating rod, and a stabilizing member is provided on the lower side of the first rotating rod, and the stabilizing member is locked to the rear side of the frame.

[0010] Preferably, the supporting structure includes a second motor, a second rotating rod, a first connecting plate, a second connecting plate, a roller, a fixed plate, and a rotating rod seat. The second motor is located on the right side of the front end of the frame, and the output end of the second motor is connected to the second rotating rod. The first connecting plate is installed on both sides of the outer end of the second rotating rod. The second connecting plate is welded to the lower end of the first connecting plate. The roller is rotatably connected to the lower end of the second connecting plate. The left side of the second rotating rod is inserted into the fixed plate, and the outer side of the left end of the second rotating rod is located on the rotating rod seat. The rotating rod seat is locked to the outer side of the fixed plate.

[0011] Preferably, the vertical rods are arranged in pairs along the lower ends of the left and right sides of the first movable frame, and the outer sides of the lower ends of the four vertical rods are connected to the sides of the second movable frame through rubber rings.

[0012] Preferably, the trigger bar is symmetrically arranged vertically along the outer side of the first rotating rod, and the trigger bar is made of two metal plates welded together.

[0013] Preferably, the supporting structure is symmetrically arranged vertically along the front side of the frame, and the first connecting plate, the second connecting plate, and the roller are symmetrically installed horizontally along the outer side of the second rotating rod.

[0014] Compared with the prior art, the beneficial effects of this utility model are:

[0015] 1. This utility model, by setting up an injection mold, an unlocking structure, and a supporting structure, namely, injection molds respectively set inside the first and second moving frames, can realize the construction of a double-layer injection structure to meet the double-layer injection molding process of shoe soles, thereby improving the injection efficiency of shoe soles. At the same time, in conjunction with the rotation of the trigger bar inside the unlocking structure, it can contact and trigger with the locking part set on the rear side of the injection mold, thereby facilitating the opening of the injection mold and avoiding the sticking of the injection molded shoe sole, which affects the material handling efficiency. Furthermore, when the injection mold is folded and opened, the supporting structure can help support the second mold, ensuring the stability of the second mold's folding and opening. Thus, a high-efficiency shoe sole injection mold can be constructed, accelerating injection efficiency and subsequent material handling efficiency.

[0016] 2. This utility model sets up an injection mold, that is, the two injection molds set at the same location can be stacked together and stacked with the mold set at the upper end of the receiving plate to form a double-layer injection structure, thereby speeding up the injection efficiency of the shoe sole. The hinges installed on the front side of the first mold and the second mold can be rotated and engaged when the second mold is folded and opened.

[0017] 3. This utility model incorporates a locking component and an unlocking structure. When the first and second molds are to be folded and opened, the first motor is driven to rotate the first rotating rod. This causes the trigger bars on both sides of the outer end of the first rotating rod to rotate simultaneously, engaging with the protruding rods of the corresponding locking component. This compression of the protruding rods pushes the locking plate inside the mounting groove, quickly releasing the locking plate from the locking block inside the docking block. In this way, the second mold can quickly release its lock from the first mold, allowing it to automatically fold and open in conjunction with the supporting structure. Subsequently, when the first and second molds are to be locked again, the locking block can automatically move and engage via a spring on one side under compression, ensuring rapid reconnection of the first and second molds.

[0018] 4. This utility model incorporates a supporting structure. Under the operation of the second motor, the second rotating rod can rotate. This allows the first connecting plates on both sides of the outer end of the second rotating rod to rotate counterclockwise, causing the second connecting plates to rotate to the lower end of the first and second moving frames. This, in conjunction with the externally connected rotating rollers, provides stable support for the second mold. Thus, when the second mold and the first mold are unlocked, the reset first connecting plate, second connecting plate, and rollers allow the second mold to be stably folded and unfolded, ensuring easy removal of the injection-molded shoe soles adhered to the outside of the second mold. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the structure of this utility model;

[0020] Figure 2 This is a frontal cross-sectional view of the present invention.

[0021] Figure 3 This is a schematic diagram of the rear view structure of the injection mold of this utility model;

[0022] Figure 4 This is a top view of the locking component of this utility model;

[0023] Figure 5 This is a top view of the internal structure of the locking component of this utility model;

[0024] Figure 6 This is a front view schematic diagram of the unlocking structure of this utility model;

[0025] Figure 7 This is a front view schematic diagram of the support structure of this utility model;

[0026] Figure 8 This is a schematic diagram of the right side of the supporting structure of this utility model.

[0027] In the diagram: Frame-1, Cylinder-2, First Moving Frame-3, Vertical Rod-4, Rubber Ring-5, Second Moving Frame-6, Support Plate-7, Injection Mold-8, First Mold-81, Second Mold-82, Hinge-83, Locking Component-84, Mounting Slot-841, Metal Block-842, Locking Plate-843, Spring-844, Protruding Rod-845, Connecting Block-846, Bolt-847, Lock Hole-848, Unlocking Structure-9, First Motor-91, First Rotating Rod-92, Trigger Bar-93, Stabilizing Component-94, Support Structure-10, Second Motor-101, Second Rotating Rod-102, First Connecting Plate-103, Second Connecting Plate-104, Roller-105, Fixing Plate-106, Rotating Rod Seat-107. Detailed Implementation

[0028] To further explain the technical solution of this utility model, a detailed description is provided below through specific embodiments.

[0029] Please see Figure 1-2 This utility model provides a double-layer mold for shoe soles, including a frame 1, cylinders 2, a first movable frame 3, vertical rods 4, rubber rings 5, a second movable frame 6, a receiving plate 7, an injection mold 8, an unlocking structure 9, and a supporting structure 10. Cylinders 2 are vertically installed on both sides of the frame 1, and the upper ends of the cylinders 2 on both sides are connected to the left and right sides of the first movable frame 3. The lower ends of both sides of the first movable frame 3 are vertically fastened to vertical rods 4, and rubber rings 5 ​​are provided on the outer side of the lower ends of the vertical rods 4. The rubber rings 5 ​​can assist the upward movement of the vertical rods 4. The second movable frame 6 is installed on the left and right sides inside the second movable frame 6, and the outer ends of the second movable frame 6 on both sides are inserted into the vertical rods 4. The receiving plate 7 is fastened to the middle of the frame 1. The injection mold 8 is installed inside both the first movable frame 3 and the second movable frame 6. The unlocking structure 9 is installed on the rear side of the upper end of the frame 1, and the supporting structure 10 is installed on both ends of the front side of the frame 1.

[0030] The vertical rods 4 are arranged in pairs along the lower ends of the left and right sides of the first movable frame 3, and the outer sides of the lower ends of the four vertical rods 4 are connected to the sides of the second movable frame 6 through the rubber rings 5. In this way, when the bottom four vertical rods 4 of the first movable frame 3 move upward, when the vertical rods 4 move to a certain position and the rubber rings 5 ​​abut against the bottom of the second movable frame 6, the second movable frame 6 can move upward accordingly.

[0031] Please see Figure 3-5 In this embodiment, the injection mold 8 includes a first mold 81, a second mold 82, a hinge 83, and a locking member 84. The first mold 81 is installed inside the first movable frame 3 or the second movable frame 6, and the second mold 82 is provided at the lower end of the first mold 81. The front side of the second mold 82 and the first mold 81 are connected to each other through the hinge 83. In this way, after the injection molding activity is completed, the folding and opening activities can be realized. The second mold 82 and the rear side of the first mold 81 are equipped with the locking member 84. With the cooperation of the locking member 84, the first mold 81 and the second mold 82 can be in a stable combined state when injection molding is used.

[0032] The locking component 84 includes a mounting groove 841, a metal block 842, a locking plate 843, a spring 844, a protruding rod 845, a mating block 846, a bolt 847, and a locking hole 848. The mounting groove 841 is located at the upper rear side of the first mold 81, and the metal block 842 is installed at the upper end of the mounting groove 841. The metal block 842 provides protective support and improves the smoothness of the subsequent unlocking process. The locking plate 843 is movably built into the mounting groove 841, and the locking plate 843 has one side and two other openings. Springs 844 are connected to each other. The elasticity of the two springs 844 can improve the locking firmness of the locking plate 843. A protruding rod 845 is welded and fixed to the right end of the locking plate 843 away from the springs 844. The contact surface of the protruding rod 845 is convex. The mating block 846 is located on the rear side of the second mold 82. The bottom sides of the second mold 82 are locked to the second mold 82 by bolts 847. The second mold 82 has a locking hole 848 inside. The inside of the locking hole 848 is connected and locked to the middle of the outer side of the locking plate 843.

[0033] Please see Figure 6 In this embodiment, the unlocking structure 9 includes a first motor 91, a first rotating rod 92, a trigger bar 93, and a stabilizing member 94. The first motor 91 is installed on the upper rear side of the frame 1, and the output end of the first motor 91 is connected to the first rotating rod 92. The first rotating rod 92 is vertically installed on the upper rear side of the frame 1, and trigger bars 93 are installed on both sides of the outer end of the first rotating rod 92. A stabilizing member 94 is provided on the lower outer side of the first rotating rod 92, and the stabilizing member 94 is locked to the rear side of the frame 1. When the first moving frame 3 and the second moving frame 6 drive the internal injection mold 8 to move upward, the locking member 84 and the trigger bar 93 on the rear side of the injection mold 8 can be aligned. Thus, the trigger bar 93 can squeeze the protrusion 845 inside the locking member 84 by the rotation of the first rotating rod 92, thereby realizing convenient unlocking.

[0034] The trigger bar 93 is symmetrically arranged on the outside of the first rotating rod 92, and the trigger bar 93 is made of two metal plates welded together, thus forming a stable rotation trigger unlocking mechanism.

[0035] Please see Figure 7-8In this embodiment, the supporting structure 10 includes a second motor 101, a second rotating rod 102, a first connecting plate 103, a second connecting plate 104, a roller 105, a fixing plate 106, and a rotating rod seat 107. The second motor 101 is installed on the right side of the front end of the frame 1, and the output end of the second motor 101 is laterally connected to the second rotating rod 102. The first connecting plate 103 is installed on both sides of the outer end of the second rotating rod 102. The lower end of the first connecting plate 103 is welded to the second connecting plate 104, and the lower end of the second connecting plate 104 is rotatably connected to the roller 105. In this way, when the second rotating rod 102 rotates, the first connecting plate 103, the second connecting plate 104, and the roller 105 on both sides can rotate simultaneously, which helps to support the second mold 82 to perform folding and opening activities. The left side of the second rotating rod 102 is inserted into the inside of the fixing plate 106, and the left end of the second rotating rod 102 is located on the outside of the rotating rod seat 107. The rotating rod seat 107 is locked to the outside of the fixing plate 106.

[0036] The supporting structure 10 is symmetrically arranged vertically along the front side of the frame 1, and the first connecting plate 103, the second connecting plate 104 and the roller 105 are symmetrically installed horizontally along the outer side of the second rotating rod 102, so as to ensure that the first connecting plate 103, the second connecting plate 104 and the roller 105 on both sides can be stably rotated and supported, so as to realize the auxiliary folding and opening assistance of the mold.

[0037] The working principle is as follows:

[0038] First, a mold is placed on the upper end of the receiving plate 7. Then, injection material is poured into the first mold 81 located between the placed mold and the second movable frame 6. After pouring, the cylinders 2 on both sides of the drive frame 1 are contracted to move the first movable frame 3 downward. Thus, the injection mold 8 installed inside the first movable frame 3 can move downward as a whole. Next, the vertical rods 4 on the four sides at the lower end of the first movable frame 3 will move downward simultaneously, thereby releasing the rubber rings 5 ​​on the lower outer side of the four vertical rods 4 from the sides. The abutting effect at the bottom of the second movable frame 6 allows the second movable frame 6 to move downward and reset under its own weight. As a result, the injection mold 8 located between the two second movable frames 6 will be stacked outside the mold placed on the upper end of the receiving plate 7, while the injection mold 8 located inside the first movable frame 3 can be moved downward and stacked on the upper end of the injection mold 8 between the two second movable frames 6, so that the stacked molds are tightly abutting each other, ensuring that the injection material placed inside can be quickly injection molded into the sole when it enters the molding equipment for molding activities.

[0039] After the injection molding of the sole is completed, the cylinders 2 on both sides can be driven again to extend simultaneously and move the first moving frame 3 upward. This can preemptively release the stacking effect of the injection molds 8 inside the first moving frame 3. When the vertical rods 4 on the four sides at the lower end of the first moving frame 3 move upward to a certain position, the rubber rings 5 ​​installed on the lower outside of the vertical rods 4 can abut against the bottom of the second moving frames 6 on both sides. In this way, the second moving frames 6 on both sides will move upward in sync with the upward movement of the four vertical rods 4, so as to conveniently release the stacking effect of the injection molds 8 between the second moving frames 6 and the molds on the upper end of the receiving plate 7. Thus, the injection-molded sole can be taken out from the first mold 81 of the injection molds 8 between the second moving frames 6 and from the mold placed on the upper end of the receiving plate 7, so as to meet the double-layer injection molding of the sole and speed up the injection molding efficiency of the sole.

[0040] Secondly, to prevent the molded shoe sole from sticking to the outside of the second mold 82 during the injection molding process, which would cause difficulties in removal, the first moving frame 3 and the second moving frame 6 can be moved to the reset position. This can be achieved by using two second motors 101 located on the right side of the front end of the drive frame 1 to simultaneously rotate the second rotating rod 102 connected to their output ends counterclockwise. Under the counterclockwise rotation of the second rotating rod 102, the first connecting plate 103, the second connecting plate 104, and the roller 1 connected to the left and right sides of the second rotating rod 102... 05. It can be rotated counterclockwise to the lower end of the upper and lower injection molds 8 to simultaneously abut against the corresponding second mold 82. When the supporting and abutting activity is completed, the first motor 91 set on the rear side of the upper end of the frame 1 can be operated to rotate the first rotating rod 92 connected at the bottom, so that the first rotating rod 92 rotates synchronously with the trigger bars 93 set on the upper and lower sides. In this way, the trigger bars 93 on both sides can simultaneously rotate towards the locking member 84 set on the rear side of the injection mold 8. That is, when the trigger bars 93 rotate, they will engage with the protrusion 845 set inside the locking member 84. The opposing forces compress the protruding rod 845, causing it to push inward against the locking plate 843 inside the mounting groove 841. This allows the locking plate 843 to move into the mounting groove 841 and compress the two springs 844 connected on one side. Simultaneously, the retracted locking plate 843 easily releases its locking connection with the locking hole 848 inside the mating block 846, thus unlocking the first mold 81 and the second mold 82. After unlocking, the second motors 101 on both sides can be driven again to... 101 enables the second rotating rod 102 to rotate clockwise, so that the first connecting plate 103, the second connecting plate 104 and the roller 105 can rotate clockwise to reset. The unlocked second mold 82 can fold and open by its own weight and the rotational docking effect of the hinge 83 on the front side, in conjunction with the clockwise rotation of the first connecting plate 103, the second connecting plate 104 and the roller 105. This allows the injection-molded shoe sole glued to the second mold 82 to be in a convenient position for removal, avoiding the problem of difficult material removal due to adhesion.

[0041] Subsequently, when it is necessary to relock the second mold 82 with the first mold 81, the second motors 101 on both sides can be run again to rotate the second rotating rod 102 counterclockwise. In this way, the first connecting plate 103, the second connecting plate 104, and the roller 105 can move counterclockwise to reset and push the second mold 82, so that the second mold 82 can be re-connected and combined with the first mold 81. The docking block 846 located on the rear side of the second mold 82 will be aligned again with the locking plate 843 inside the mounting groove 841. When the first rotating rod 92 reverses, causing the trigger bar 93 to release its opposing and pressing effect on the protruding rod 845, the two springs 844 located on one side of the locking plate 843 and in a compressed state will automatically rebound, pushing the locking plate 843 to move outward along the inside of the mounting groove 841. This re-establishes the insertion and locking of the locking plate 843's center with the locking hole 848 inside the docking block 846, thereby ensuring that the first mold 81 and the second mold 82 are re-connected and reassembled for the next injection molding operation.

[0042] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A double-layer mold for shoe soles, characterized in that: The system includes a frame (1), cylinders (2), a first movable frame (3), vertical rods (4), rubber rings (5), a second movable frame (6), a receiving plate (7), an injection mold (8), an unlocking structure (9), and a supporting structure (10). Cylinders (2) are installed on both the left and right sides of the frame (1), and the upper ends of the cylinders (2) on both sides are connected to the first movable frame (3). Vertical rods (4) are installed on the lower ends of both sides of the first movable frame (3), and rubber rings (5) are provided on the outer side of the lower ends of the vertical rods (4) on both sides. The second movable frame (6) is installed on both sides inside the second movable frame (6), and the two sides of the second movable frame (6) are inserted into the vertical rods (4). A receiving plate (7) is fastened to the middle of the frame (1). An injection mold (8) is installed inside both the first movable frame (3) and the second movable frame (6). An unlocking structure (9) is installed on the rear side of the upper end of the frame (1), and a supporting structure (10) is installed on both ends of the front side of the frame (1).

2. The double-layer mold for shoe soles according to claim 1, characterized in that: The injection mold (8) includes a first mold (81), a second mold (82), a hinge (83), and a locking member (84). The first mold (81) is installed inside the first movable frame (3) or the second movable frame (6), and the second mold (82) is provided at the lower end of the first mold (81). The second mold (82) is connected to the front side of the first mold (81) through the hinge (83), and the second mold (82) is installed with the locking member (84) at the rear side of the first mold (81).

3. The double-layer mold for shoe soles according to claim 2, characterized in that: The locking component (84) includes a mounting groove (841), a metal block (842), a locking plate (843), a spring (844), a protruding rod (845), a connecting block (846), a bolt (847), and a locking hole (848). The mounting groove (841) is located at the upper rear side of the first mold (81), and a metal block (842) is installed at the upper end of the mounting groove (841). The locking plate (843) is movably built into the mounting groove (841), and one side of the locking plate (843) is connected to the spring (844). A protruding rod (845) is welded and fixed to the other side of the locking plate (843). The connecting block (846) is located at the rear side of the second mold (82), and the bottom sides of the second mold (82) are locked to the second mold (82) by bolts (847). A locking hole (848) is provided inside the second mold (82), and the inside of the locking hole (848) is connected and locked to the locking plate (843).

4. The double-layer mold for shoe soles according to claim 1, characterized in that: The unlocking structure (9) includes a first motor (91), a first rotating rod (92), a trigger bar (93), and a stabilizing member (94). The first motor (91) is installed on the upper rear side of the frame (1), and the output end of the first motor (91) is connected to the first rotating rod (92). The trigger bars (93) are installed on both sides of the outer end of the first rotating rod (92). The stabilizing member (94) is provided on the lower exterior of the first rotating rod (92), and the stabilizing member (94) is locked to the rear side of the frame (1).

5. The double-layer mold for shoe soles according to claim 1, characterized in that: The supporting structure (10) includes a second motor (101), a second rotating rod (102), a first connecting plate (103), a second connecting plate (104), a roller (105), a fixed plate (106), and a rotating rod seat (107). The second motor (101) is located on the right side of the front end of the frame (1), and the output end of the second motor (101) is connected to the second rotating rod (102). The first connecting plate (103) is installed on both sides of the outer end of the second rotating rod (102). The second connecting plate (104) is welded to the lower end of the first connecting plate (103). The roller (105) is rotatably connected to the lower end of the second connecting plate (104). The left side of the second rotating rod (102) is inserted into the interior of the fixed plate (106), and the left end of the second rotating rod (102) is located on the outside of the rotating rod seat (107). The rotating rod seat (107) is locked to the outside of the fixed plate (106).

6. The double-layer mold for shoe soles according to claim 1, characterized in that: The vertical rods (4) are arranged in pairs along the lower ends of the left and right sides of the first movable frame (3), and the lower outer sides of the vertical rods (4) on all four sides are connected to the side of the second movable frame (6) through the rubber rings (5).

7. The double-layer mold for shoe soles according to claim 4, characterized in that: The trigger bar (93) is symmetrically arranged on the outside of the first rotating rod (92), and the trigger bar (93) is made of two metal plates welded together.

8. The double-layer mold for shoe soles according to claim 5, characterized in that: The supporting structure (10) is symmetrically arranged vertically along the front side of the frame (1), and the first connecting plate (103), the second connecting plate (104) and the roller (105) are symmetrically installed horizontally along the outer side of the second rotating rod (102).

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