A compression mould mechanism of a combined mould forming casting machine and working method

Abstract

The invention relates to a kind of mould pressing mechanism of jointing forming casting machine and working method.The invention includes shoe mould fixing structure, upper rotating disc, lower rotating disc, rotating disc shaft sleeve, rotating disc motor and rack, rotating disc shaft seat is set on the rack, upper rotating disc and lower rotating disc are all set on rotating disc shaft sleeve, rotating disc shaft sleeve is set on rotating disc shaft seat, and rotating disc shaft sleeve is driven by gear with rotating disc motor, its structural characteristics are as follows:it further includes shoe upper fixing structure and pressing structure, pressing structure is set on the rack, shoe upper fixing structure and shoe mould fixing structure are respectively set on upper rotating disc and lower rotating disc, upper rotating disc, lower rotating disc sequentially exist shoe upper loading station, shoe mould loading station, pressing station and unloading station in rotating process, pressing station is located in pressing structure, shoe upper fixing structure includes upper fixed structure and lower fixed structure, upper fixed structure is set on upper rotating disc, lower fixed structure is set on upper fixed structure, and upper fixed structure cooperates with pressing structure.

Description

Technical Field

[0001] This invention relates to a molding mechanism and working method of a joint molding casting machine. Background Technology

[0002] The soles of safety shoes require the injection of polymer materials such as rubber, polyurethane, or imitation leather into a mold using an injection head during the manufacturing process, which then cures and solidifies. In view of this, patent application number 202320114754.4 discloses a molding mechanism for a fully automatic disc-type shoe upper injection molding machine. However, the molding mechanism in the aforementioned prior art cannot adjust the height of the pressing head, resulting in an inability to adjust the pressure between the upper and the mold when pressing different uppers and molds. Furthermore, in the aforementioned prior art, the upper is suspended at the bottom of the upper slot during hanging, causing it to fall off during equipment rotation. Summary of the Invention

[0003] The purpose of this invention is to overcome the above-mentioned shortcomings in the prior art and to provide a molding mechanism and working method for a joint molding casting machine with a reasonable structural design.

[0004] The technical solution adopted by the present invention to solve the above problems is as follows: the pressing mechanism of the upper molding casting machine includes a shoe mold fixing structure, an upper rotating disk, a lower rotating disk, a rotating disk bushing, a rotating disk motor, and a frame. A rotating disk bearing seat is provided on the frame. The upper and lower rotating disks are both set on the rotating disk bushing. The rotating disk bushing is set on the rotating disk bearing seat, and the rotating disk bushing and the rotating disk motor are driven by gears. Its structural feature is that it also includes an upper fixing structure and a pressing structure. The pressing structure is set on the frame. The upper fixing structure and the shoe mold fixing structure are respectively set on the upper rotating disk and the lower rotating disk. During the rotation of the upper and lower rotating disks, there are sequentially an upper feeding station, a shoe mold feeding station, a pressing station, and a feeding station. The pressing structure is located at the pressing station. The upper fixing structure includes an upper fixing structure and a lower fixing structure. The upper fixing structure is set on the upper rotating disk, and the lower fixing structure is set on the upper fixing structure. The upper fixing structure cooperates with the pressing structure.

[0005] Furthermore, the upper fixing structure includes a sleeve, a pressure rod, a first spring, a sliding sleeve, a slider, a locking block, and a second spring. The sleeve is disposed on the upper rotating disk. The pressure rod passes through the sleeve. The first spring is fitted outside the pressure rod and located inside the sleeve. Both ends of the first spring abut against the sleeve and the pressure rod, respectively. The sliding sleeve is threadedly connected to the sleeve. One end of the slider is disposed on the sliding sleeve. The other end of the slider passes through the locking block. The locking block is slidably disposed on the pressure rod. Both ends of the second spring abut against the locking block and the pressure rod, respectively.

[0006] Furthermore, the upper rotating disk is provided with a pressure rod hole, the sleeve is provided with a sleeve ring, the pressure rod passes through the sleeve ring and the pressure rod hole, the two ends of the pressure rod are respectively provided with a pressure rod head and a pressure rod seat, the pressure rod head is provided with a spherical structure, the middle part of the pressure rod is provided with a pressure rod ring, and the two ends of the first spring abut against the sleeve ring and the pressure rod ring respectively.

[0007] Furthermore, the pressure rod seat is provided with a connecting hole, a locking block groove, and a second spring cavity. The connecting hole communicates with the locking block groove. The second spring cavity is provided on the side wall of the locking block groove. The locking block is located in the locking block groove, and a second spring seat is provided on the side wall of the locking block. The second spring is located in the second spring cavity, and the second spring abuts against the second spring seat.

[0008] Furthermore, the card block is provided with a wedge-shaped hole, the sliding sleeve is provided with a slider limiting groove, and the two ends of the slider are respectively provided with a slider limiting block and a wedge-shaped block, the slider limiting block is located in the slider limiting groove, and the wedge-shaped block is located in the wedge-shaped hole.

[0009] Furthermore, the lower fixed structure includes a connecting seat, a sliding rod, a third spring, a support rod, and a hinge shaft. The connecting seat is disposed on the upper fixed structure. The sliding rod and the third spring are both disposed within the connecting seat, and the two ends of the third spring abut against the connecting seat and the sliding rod, respectively. The support rod is disposed on the sliding rod via the hinge shaft, and a torsion spring is fitted on the hinge shaft, with the two ends of the torsion spring abutting against the support rod and the sliding rod, respectively.

[0010] Furthermore, the upper part of the connecting seat is provided with a connecting post, and the connecting post is provided with a locking hole, which engages with the locking block.

[0011] Furthermore, the lower part of the connecting seat is provided with a first connecting sleeve, which is connected to a second connecting sleeve. The first connecting sleeve and the second connecting sleeve are respectively provided with a first connecting groove and a second connecting groove. The upper end of the slide rod is connected to the slide rod sleeve through a connecting slider. The slide rod sleeve is fitted outside the first connecting sleeve. The connecting slider is located inside the first connecting groove. The lower end of the slide rod is provided with a slide rod limiting seat. The slide rod limiting seat has a conical structure and is located inside the second connecting sleeve.

[0012] Furthermore, the clamping structure includes a fixed clamping seat, a sliding clamping seat, a clamping head, an adjusting screw, a screw fixing seat, a screw sliding seat, a screw groove, a screw limiting groove, and a screw limiting ring. The fixed clamping seat and the screw fixing seat are both mounted on the frame. The clamping head is mounted on the sliding clamping seat, and the sliding clamping seat is located inside the fixed clamping seat. The screw groove is located on the wall of the fixed clamping seat, and the screw sliding seat is mounted on the sliding clamping seat, with the screw sliding seat and the screw groove penetrating each other. The screw limiting groove is located on the screw fixing seat, and the screw limiting ring is mounted on the adjusting screw, with the screw limiting ring located inside the screw limiting groove. The adjusting screw is threadedly connected to the screw sliding seat, and the clamping head has a helical structure.

[0013] Furthermore, the shoe mold fixing structure includes a shoe mold fixing seat and a shoe mold fixing groove. The shoe mold fixing seat and the shoe upper fixing structure are respectively arranged on the lower rotating plate, and the shoe mold fixing groove is arranged on the shoe mold fixing seat.

[0014] Compared with the prior art, the present invention has the following advantages: the pressing mechanism can adjust the height of the pressing head by rotating the adjusting screw, thus making it suitable for pressing different shoe uppers and shoe molds. By setting the pressing head as a spiral structure, the pressing of shoe uppers and shoe molds can be completed during the rotation of the upper and lower rotating plates, enabling continuous production and improving work efficiency. At the same time, pre-suspending the shoe upper on the lower fixed structure can improve work efficiency. The shoe upper is supported by the support rod to prevent it from detaching from the lower fixed structure during the rotation of the equipment. After the pressing is completed, the shoe upper and shoe mold can be removed for the next step of processing by rotating the sliding sleeve to control the disengagement of the locking block and the locking hole. Attached Figure Description

[0015] Figure 1 This is a schematic cross-sectional view of the molding mechanism according to an embodiment of the present invention. Figure 1 .

[0016] Figure 2 yes Figure 1 A magnified structural diagram of part B in the diagram.

[0017] Figure 3 yes Figure 1 A schematic diagram of the AA cross-sectional structure.

[0018] Figure 4 yes Figure 3 A magnified structural diagram of part C in the diagram.

[0019] Figure 5 This is a schematic cross-sectional view of the molding mechanism according to an embodiment of the present invention. Figure 2 .

[0020] Figure 6 This is a three-dimensional structural diagram of the molding mechanism according to an embodiment of the present invention. Figure 1 .

[0021] Figure 7 This is a three-dimensional structural diagram of the molding mechanism according to an embodiment of the present invention. Figure 2 .

[0022] In the diagram: 1. Shoe upper fixing structure; 2. Shoe mold fixing structure; 3. Upper rotating plate; 4. Lower rotating plate; 5. Turntable bushing; 6. Pressing structure; 7. Turntable motor; 8. Frame.

[0023] Upper fixed structure 11, lower fixed structure 12

[0024] Sleeve 111, pressure rod 112, first spring 113, sliding sleeve 114, slider 115, locking block 116, second spring 117

[0025] Connecting seat 121, slide rod 122, third spring 123, support rod 124, hinge shaft 125

[0026] Sleeve ring 1111, pressure rod hole 1112

[0027] 1121 pressure rod head, 1122 pressure rod seat, 1123 pressure rod ring, 1124 connecting hole, 1125 locking block groove, 1126 second spring cavity.

[0028] Slider limit groove 1141

[0029] Slider limit block 1151, wedge block 1152

[0030] Wedge-shaped hole 1161, second spring seat 1162

[0031] Connecting post 1211, locking hole 1212, first connecting sleeve 1213, second connecting sleeve 1214, first connecting groove 1215, second connecting groove 1216

[0032] Slide sleeve 1221, connecting slider 1222, slide limit seat 1223

[0033] Shoe mold fixing base 21, shoe mold fixing groove 22

[0034] Fixed clamping seat 61, sliding clamping seat 62, clamping head 63, adjusting screw 64, screw fixing seat 65, screw sliding seat 66, screw slide groove 67, screw limiting groove 68, screw limiting ring 69.

[0035] Turntable bearing seat 81. Detailed Implementation

[0036] The present invention will be further described in detail below with reference to the accompanying drawings and embodiments. The following embodiments are explanations of the present invention, but the present invention is not limited to the following embodiments.

[0037] Example

[0038] See Figures 1 to 7 As shown in the accompanying drawings, the structures, proportions, sizes, etc., depicted are merely for illustrative purposes to aid those skilled in the art and to facilitate understanding. They are not intended to limit the scope of the invention and therefore have no substantial technical significance. Any modifications to the structure, changes in proportions, or adjustments to size, without affecting the effectiveness or purpose of the invention, should still fall within the scope of the disclosed technical content. Furthermore, the use of terms such as "upper," "lower," "left," "right," "middle," and "one" in this specification is merely for clarity and not intended to limit the scope of the invention. Changes or adjustments to their relative relationships, without substantially altering the technical content, should also be considered within the scope of the invention.

[0039] The molding mechanism of the upper forming casting machine in this embodiment includes an upper fixing structure 1, a shoe mold fixing structure 2, an upper rotating disk 3, a lower rotating disk 4, a rotating disk bushing 5, a pressing structure 6, a rotating disk motor 7, and a frame 8. A rotating disk bearing 81 is provided on the frame 8. The upper rotating disk 3 and the lower rotating disk 4 are both provided on the rotating disk bushing 5. The rotating disk bushing 5 is provided on the rotating disk bearing 81, and the rotating disk bushing 5 and the rotating disk motor 7 are driven by gears.

[0040] In this embodiment, the pressing structure 6 is set on the frame 8, the shoe upper fixing structure 1 and the shoe mold fixing structure 2 are respectively set on the upper rotating plate 3 and the lower rotating plate 4. During the rotation of the upper rotating plate 3 and the lower rotating plate 4, there are shoe upper feeding station, shoe mold feeding station, pressing station and unloading station in sequence. The pressing structure 6 is located at the pressing station. The shoe upper fixing structure 1 includes an upper fixing structure 11 and a lower fixing structure 12. The upper fixing structure 11 is set on the upper rotating plate 3, and the lower fixing structure 12 is set on the upper fixing structure 11. The upper fixing structure 11 cooperates with the pressing structure 6.

[0041] The upper fixing structure 11 in this embodiment includes a sleeve 111, a pressure rod 112, a first spring 113, a sliding sleeve 114, a slider 115, a locking block 116, and a second spring 117. The sleeve 111 is mounted on the upper rotating disk 3. The pressure rod 112 passes through the sleeve 111. The first spring 113 is fitted outside the pressure rod 112 and located inside the sleeve 111. Both ends of the first spring 113 abut against the sleeve 111 and the pressure rod 112, respectively. The sliding sleeve 114 is threadedly connected to the sleeve 111. One end of the slider 115 is mounted on the sliding sleeve 114, and the other end of the slider 115 passes through the locking block 116. The locking block 116 is slidably mounted on the pressure rod 112. Both ends of the second spring 117 abut against the locking block 116 and the pressure rod 112, respectively.

[0042] In this embodiment, the upper rotating disk 3 is provided with a pressure rod hole 1112, the sleeve 111 is provided with a sleeve ring 1111, the pressure rod 112 passes through the sleeve ring 1111 and the pressure rod hole 1112, the two ends of the pressure rod 112 are respectively provided with a pressure rod head 1121 and a pressure rod seat 1122, the pressure rod head 1121 is provided with a spherical structure, the middle part of the pressure rod 112 is provided with a pressure rod ring 1123, and the two ends of the first spring 113 abut against the sleeve ring 1111 and the pressure rod ring 1123 respectively.

[0043] In this embodiment, the pressure rod seat 1122 is provided with a connecting hole 1124, a locking block groove 1125, and a second spring cavity 1126. The connecting hole 1124 communicates with the locking block groove 1125. The second spring cavity 1126 is provided on the side wall of the locking block groove 1125. The locking block 116 is located in the locking block groove 1125, and the side wall of the locking block 116 is provided with a second spring seat 1162. The second spring 117 is located in the second spring cavity 1126, and the second spring 117 abuts against the second spring seat 1162.

[0044] In this embodiment, the card block 116 is provided with a wedge-shaped hole 1161, the sliding sleeve 114 is provided with a slider limiting groove 1141, and the two ends of the slider 115 are respectively provided with a slider limiting block 1151 and a wedge block 1152. The slider limiting block 1151 is located in the slider limiting groove 1141, and the wedge block 1152 is located in the wedge hole 1161.

[0045] The lower fixing structure 12 in this embodiment includes a connecting seat 121, a slide rod 122, a third spring 123, a support rod 124, and a hinge shaft 125. The connecting seat 121 is disposed on the upper fixing structure 11. The slide rod 122 and the third spring 123 are both disposed inside the connecting seat 121, and the two ends of the third spring 123 abut against the connecting seat 121 and the slide rod 122 respectively. The support rod 124 is disposed on the slide rod 122 through the hinge shaft 125. A torsion spring is fitted on the hinge shaft 125, and the two ends of the torsion spring abut against the support rod 124 and the slide rod 122 respectively. A connecting post 1211 is disposed on the upper part of the connecting seat 121. A locking hole 1212 is disposed on the connecting post 1211, and the locking hole 1212 is engaged with the locking block 116. The torsion spring is not shown in the figure. The elastic force of the torsion spring is less than the elastic force of the third spring 123.

[0046] In this embodiment, the lower part of the connecting seat 121 is provided with a first connecting sleeve 1213, which is connected to a second connecting sleeve 1214. The first connecting sleeve 1213 and the second connecting sleeve 1214 are respectively provided with a first connecting groove 1215 and a second connecting groove 1216. The upper end of the slide rod 122 is connected to the slide rod sleeve 1221 through the connecting slider 1222. The slide rod sleeve 1221 is fitted outside the first connecting sleeve 1213. The connecting slider 1222 is located inside the first connecting groove 1215. The lower end of the slide rod 122 is provided with a slide rod limiting seat 1223, which is tapered and located inside the second connecting sleeve 1214.

[0047] The clamping structure 6 in this embodiment includes a fixed clamping seat 61, a sliding clamping seat 62, a clamping head 63, an adjusting screw 64, a screw fixing seat 65, a screw sliding seat 66, a screw groove 67, a screw limiting groove 68, and a screw limiting ring 69. The fixed clamping seat 61 and the screw fixing seat 65 are both mounted on the frame 8. The clamping head 63 is mounted on the sliding clamping seat 62, and the sliding clamping seat 62 is mounted inside the fixed clamping seat 61. The screw groove 67 is mounted on the wall of the fixed clamping seat 61, and the screw sliding seat 66 is mounted on the sliding clamping seat 62, with the screw sliding seat 66 and the screw groove 67 penetrating each other. The screw limiting groove 68 is mounted on the screw fixing seat 65, and the screw limiting ring 69 is mounted on the adjusting screw 64, with the screw limiting ring 69 located inside the screw limiting groove 68. The adjusting screw 64 is threadedly connected to the screw sliding seat 66, and the clamping head 63 is arranged in a spiral structure.

[0048] In this embodiment, the shoe mold fixing structure 2 includes a shoe mold fixing seat 21 and a shoe mold fixing groove 22. The shoe mold fixing seat 21 and the shoe upper fixing structure 1 are respectively arranged on the lower rotating plate 4, and the shoe mold fixing groove 22 is arranged on the shoe mold fixing seat 21.

[0049] Specifically, the working method of the compression molding mechanism of this joint molding casting machine is as follows:

[0050] By rotating the adjusting screw 64, the screw limiting ring 69 rotates within the screw limiting groove 68. Since the adjusting screw 64 is threadedly connected to the screw sliding seat 66, the screw sliding seat 66 can slide within the screw sliding groove 67, thereby driving the sliding pressing seat 62 to move up and down. This allows for height adjustment of the pressing head 63, thus enabling pressure adjustment of the shoe upper fixing structure 1.

[0051] The shoe upper is pre-suspended on the lower fixed structure 12. The sliding sleeve 1221 is slid upward to compress the third spring 123. At the same time, under the action of the torsion spring, the support rod 124 can rotate along the hinge axis 125, putting the support rod 124 in a retracted state. Then, the second connecting sleeve 1214 is inserted into the shoe upper guide. The sliding sleeve 1221 is released, and under the action of the third spring 123, the support rod 124 is opened, so that the shoe upper can be suspended on the lower fixed structure 12.

[0052] The turntable motor 7 drives the turntable bushing 5 to rotate the upper turntable 3 and the lower turntable 4. When the upper turntable 3 and the lower turntable 4 rotate to the shoe upper loading station, the connecting post 1211 is inserted into the connecting hole 1124. At the same time, under the action of the locking block 116, the slider 115 can be locked into the locking hole 1212. The lower fixed structure 12 with the shoe upper suspended and the upper fixed structure 11 are assembled at the shoe upper loading station.

[0053] The turntable motor 7 drives the turntable bushing 5 to rotate the upper turntable 3 and the lower turntable 4. When the upper turntable 3 and the lower turntable 4 rotate to the shoe mold loading station, the shoe mold is placed in the shoe mold fixing groove 22.

[0054] The turntable motor 7 drives the turntable bushing 5 to rotate the upper turntable 3 and the lower turntable 4. When the upper turntable 3 and the lower turntable 4 rotate to the pressing position, the pressing rod head 1121 contacts the pressing head 63 which is arranged in a spiral structure. With the rotation of the turntable motor 7, the shoe upper and the shoe mold can be pressed together. When the pressing rod head 1121 is separated from the pressing head 63, the shoe upper and the shoe mold are suspended together on the lower fixed structure 12.

[0055] The turntable motor 7 drives the turntable bushing 5 to rotate the upper turntable 3 and the lower turntable 4. When the upper turntable 3 and the lower turntable 4 rotate to the unloading station, the sliding sleeve 114 is threadedly connected to the sleeve 111. By rotating the sliding sleeve 114, the sliding sleeve 114 moves downward on the sleeve 111. Since the sliding sleeve 114 and the slider 115 are connected through the slider limiting groove 1141 and the slider limiting block 1151, the sliding sleeve 114 can drive the slider 115 to move downward when it rotates and descends. When the wedge block 1152 contacts the wall of the wedge hole 1161, it can pull the locking block 116 outward, so that the locking block 116 is disengaged from the locking hole 1212. Thus, the upper fixed structure 11 and the lower fixed structure 12 can be separated, and the pressing mold is completed.

[0056] By repeatedly sliding the slide sleeve 1221 upwards, the lower fixed structure 12 and the molded shoe upper and shoe mold can be removed.

[0057] Furthermore, it should be noted that the specific embodiments described in this specification may differ in the shape and name of their components, etc. The above description is merely illustrative of the structure of the present invention. All equivalent or simple variations made based on the structure, features, and principles described in this patent concept are included within the protection scope of this patent. Those skilled in the art can make various modifications or additions to the described specific embodiments or use similar methods to substitute them, as long as they do not deviate from the structure of the present invention or exceed the scope defined by the claims, all of which should fall within the protection scope of this invention.

Claims

1. A molding mechanism for a shoe mold casting machine, comprising a shoe mold fixing structure (2), an upper rotating disk (3), a lower rotating disk (4), a rotating disk bushing (5), a rotating disk motor (7), and a frame (8), wherein a rotating disk bearing seat (81) is provided on the frame (8), the upper rotating disk (3) and the lower rotating disk (4) are both provided on the rotating disk bushing (5), the rotating disk bushing (5) is provided on the rotating disk bearing seat (81), and the rotating disk bushing (5) and the rotating disk motor (7) are transmitted through gears, characterized in that: It also includes a shoe upper fixing structure (1) and a pressing structure (6). The pressing structure (6) is set on the frame (8). The shoe upper fixing structure (1) and the shoe mold fixing structure (2) are respectively set on the upper rotating plate (3) and the lower rotating plate (4). During the rotation of the upper rotating plate (3) and the lower rotating plate (4), there are shoe upper loading station, shoe mold loading station, pressing station and unloading station in sequence. The pressing structure (6) is located at the pressing station. The shoe upper fixing structure (1) includes an upper fixing structure (11) and a lower fixing structure (12). The fixing structure (11) is set on the upper rotating disk (3). When the upper is being fed into the shoe upper, the lower fixing structure (12) is set on the upper fixing structure (11). When the upper is being unloaded, the lower fixing structure (12) is disengaged from the upper fixing structure (11). The upper fixing structure (11) cooperates with the pressing structure (6). The pressing structure (6) includes a fixed pressing seat (61), a sliding pressing seat (62), a pressing head (63), an adjusting screw (64), a screw fixing seat (65), a screw sliding seat (66), a screw groove (67), and a screw limiting groove (68). The screw limiting ring (69), the fixed clamping seat (61) and the screw fixing seat (65) are both set on the frame (8), the clamping head (63) is set on the sliding clamping seat (62), the sliding clamping seat (62) is set inside the fixed clamping seat (61), the screw slide groove (67) is set on the wall of the fixed clamping seat (61), the screw sliding seat (66) is set on the sliding clamping seat (62), and the screw sliding seat (66) and the screw slide groove (67) penetrate each other, and the screw limiting groove (68) is set on the screw fixing seat (65). On the adjustment screw (64), the screw limiting ring (69) is set on the adjustment screw (64) and the screw limiting ring (69) is located in the screw limiting groove (68). The adjustment screw (64) is threadedly connected to the screw sliding seat (66). The pressing head (63) is set in a spiral structure. The shoe mold fixing structure (2) includes a shoe mold fixing seat (21) and a shoe mold fixing groove (22). The shoe mold fixing seat (21) and the shoe upper fixing structure (1) are set on the lower rotating disk (4) in a one-to-one correspondence. The shoe mold fixing groove (22) is set on the shoe mold fixing seat (21).

2. The pressing mechanism of the joint forming casting machine according to claim 1, characterized in that: The upper fixing structure (11) includes a sleeve (111), a pressure rod (112), a first spring (113), a sliding sleeve (114), a slider (115), a locking block (116), and a second spring (117). The sleeve (111) is mounted on the upper rotating disk (3). The pressure rod (112) passes through the sleeve (111). The first spring (113) is fitted outside the pressure rod (112) and located inside the sleeve (111). (113) has two ends that abut against the sleeve (111) and the pressure rod (112) respectively. The sliding sleeve (114) is threadedly connected to the sleeve (111). One end of the slider (115) is set on the sliding sleeve (114). The other end of the slider (115) passes through the locking block (116). The locking block (116) is slidably set on the pressure rod (112). The two ends of the second spring (117) abut against the locking block (116) and the pressure rod (112) respectively.

3. The pressing mechanism of the joint forming casting machine according to claim 2, characterized in that: The upper rotating disk (3) is provided with a pressure rod hole (1112), the sleeve (111) is provided with a sleeve ring (1111), the pressure rod (112) passes through the sleeve ring (1111) and the pressure rod hole (1112), the two ends of the pressure rod (112) are respectively provided with a pressure rod head (1121) and a pressure rod seat (1122), the pressure rod head (1121) is provided with a spherical structure, the middle part of the pressure rod (112) is provided with a pressure rod ring (1123), and the two ends of the first spring (113) abut against the sleeve ring (1111) and the pressure rod ring (1123) respectively.

4. The pressing mechanism of the joint forming casting machine according to claim 3, characterized in that: The pressure rod seat (1122) is provided with a connecting hole (1124), a block groove (1125), and a second spring cavity (1126). The connecting hole (1124) communicates with the block groove (1125). The second spring cavity (1126) is provided on the side wall of the block groove (1125). The block (116) is located in the block groove (1125), and the side wall of the block (116) is provided with a second spring seat (1162). The second spring (117) is located in the second spring cavity (1126), and the second spring (117) abuts against the second spring seat (1162).

5. The pressing mechanism of the joint forming casting machine according to claim 4, characterized in that: The card block (116) is provided with a wedge-shaped hole (1161), the sliding sleeve (114) is provided with a slider limiting groove (1141), and the two ends of the slider (115) are respectively provided with a slider limiting block (1151) and a wedge block (1152). The slider limiting block (1151) is located in the slider limiting groove (1141), and the wedge block (1152) is located in the wedge-shaped hole (1161).

6. The pressing mechanism of the joint forming casting machine according to claim 5, characterized in that: The lower fixed structure (12) includes a connecting seat (121), a slide rod (122), a third spring (123), a support rod (124), and a hinge shaft (125). The connecting seat (121) is mounted on the upper fixed structure (11). The slide rod (122) and the third spring (123) are both mounted inside the connecting seat (121), and the two ends of the third spring (123) abut against the connecting seat (121) and the slide rod (122) respectively. The support rod (124) is mounted on the slide rod (122) through the hinge shaft (125). A torsion spring is mounted on the hinge shaft (125), and the two ends of the torsion spring abut against the support rod (124) and the slide rod (122) respectively.

7. The die-pressing mechanism of the joint forming casting machine according to claim 6, characterized in that: The upper part of the connecting seat (121) is provided with a connecting post (1211), and the connecting post (1211) is provided with a locking hole (1212), which is engaged with the locking block (116).

8. The die-pressing mechanism of the joint forming casting machine according to claim 7, characterized in that: The lower part of the connecting seat (121) is provided with a first connecting sleeve (1213), which is connected to a second connecting sleeve (1214). The first connecting sleeve (1213) and the second connecting sleeve (1214) are respectively provided with a first connecting groove (1215) and a second connecting groove (1216). The upper end of the slide rod (122) is connected to the slide rod sleeve (1221) through a connecting slider (1222). The slide rod sleeve (1221) is fitted outside the first connecting sleeve (1213). The connecting slider (1222) is located inside the first connecting groove (1215). The lower end of the slide rod (122) is provided with a slide rod limiting seat (1223). The slide rod limiting seat (1223) is tapered and located inside the second connecting sleeve (1214).

9. A method for operating the pressing mechanism of the joint forming casting machine as described in claim 8, characterized in that: The working method is as follows: the shoe upper is suspended on the lower fixed structure (12) in advance, the sliding sleeve (1221) is slid upward to compress the third spring (123), and at the same time, under the action of the torsion spring, the support rod (124) can be rotated along the hinge axis (125) to put the support rod (124) in a retracted state. Then, the second connecting sleeve (1214) is inserted into the shoe upper guide. The sliding sleeve (1221) is released and the support rod (124) is opened under the action of the third spring (123) so that the shoe upper can be suspended on the lower fixed structure (12). The turntable motor (7) drives the turntable bushing (5) to rotate the upper turntable (3) and the lower turntable (4). When the upper turntable (3) and the lower turntable (4) rotate to the shoe upper loading station, the connecting column (1211) is inserted into the connecting hole (1124). At the same time, under the action of the locking block (116), the slider (115) can be locked into the locking hole (1212). The lower fixed structure (12) with the shoe upper is assembled with the upper fixed structure (11) at the shoe upper loading station. The turntable motor (7) drives the turntable bushing (5) to rotate the upper turntable (3) and the lower turntable (4). When the upper turntable (3) and the lower turntable (4) rotate to the shoe mold loading station, the shoe mold is placed in the shoe mold fixing groove (22). The turntable motor (7) drives the turntable bushing (5) to rotate the upper turntable (3) and the lower turntable (4). When the upper turntable (3) and the lower turntable (4) rotate to the pressing position, the pressure rod head (1121) contacts the pressing head (63) which is set in a spiral structure. With the rotation of the turntable motor (7), the shoe upper and the shoe mold can be pressed together. When the pressure rod head (1121) separates from the pressing head (63), the shoe upper and the shoe mold are suspended together on the lower fixed structure (12). The turntable motor (7) drives the turntable bushing (5) to rotate the upper turntable (3) and the lower turntable (4). When the upper turntable (3) and the lower turntable (4) rotate to the unloading station, the sliding sleeve (114) is threadedly connected to the sleeve (111). By rotating the sliding sleeve (114), the sliding sleeve (114) moves downward on the sleeve (111). Since the sliding sleeve (114) and the slider (115) are connected through the slider limiting groove (1141) and the slider limiting block (1151), the sliding sleeve (114) can drive the slider (115) to move downward when it rotates. When the wedge block (1152) contacts the wall of the wedge hole (1161), the locking block (116) can be pulled outward, so that the locking block (116) is separated from the locking hole (1212). Thus, the upper fixed structure (11) and the lower fixed structure (12) can be separated to complete the pressing mold. By repeatedly sliding the slide sleeve (1221) upwards, the lower fixed structure (12) and the molded upper and mold can be removed.

10. The working method of the pressing mechanism of the joint forming casting machine according to claim 9, characterized in that: By rotating the adjusting screw (64), the screw limiting ring (69) rotates in the screw limiting groove (68). Since the adjusting screw (64) is threadedly connected to the screw sliding seat (66), the screw sliding seat (66) can slide in the screw sliding groove (67) and drive the sliding pressing seat (62) to move up and down, thereby realizing the height adjustment of the pressing head (63), and thus realizing the pressure adjustment of the shoe upper fixing structure (1).

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