A soft rubber blade core-pulling structure suitable for different thicknesses

Abstract

The application discloses a soft rubber blade core-pulling structure suitable for different thicknesses, which comprises a support frame for supporting a workpiece, the support frame being slidably connected with a blade one and a blade two, the blade one and the workpiece being matched to form a cavity one, the blade two and the workpiece being matched to form a cavity two, the support frame being provided with a push plate and a pushing piece for driving the push plate to move, the push plate being provided with a connecting piece, the push plate driving the blade one to move synchronously through the connecting piece, the push plate being provided with a moving plate, the moving plate being located at the lower end of the blade two and abutting against the blade two, the upper end of the moving plate being fixedly connected with a limiting strip, the blade two being provided with a moving groove matched with the limiting strip along the transverse direction, the limiting strip being inserted into the moving groove, the difference between the width of the moving groove and the width of the limiting strip corresponding to the difference between the width of the cavity one and the width of the cavity two, and the support frame being provided with a limiting block one for positioning the blade two. The application has the effects of reducing production cost and being capable of injection molding soft rubber of different thicknesses.

Description

Technical Field

[0001] This invention relates to the field of injection molding technology, and in particular to a core-pulling structure for soft rubber blades of different thicknesses. Background Technology

[0002] In the injection molding industry, soft rubber is mainly used to manufacture some soft plastic products. Because soft rubber has good elasticity and softness, it has a variety of functions such as cushioning and shock absorption, sealing and waterproofing, insulation and heat conduction, and is widely used in different equipment structures.

[0003] In existing technologies, a soft adhesive is typically injected at the joint between two workpieces to serve as a connection and seal. To limit the placement of the adhesive, a groove for injecting the adhesive is provided at the joint between the two workpieces. The injection molding mechanism has a blade adapted to the groove, and the injection system is equipped with a drive unit to move the blade closer to or away from the groove. When the blade enters the groove, it engages with the workpiece, causing the groove to form a cavity. The liquid adhesive enters the cavity and solidifies.

[0004] Regarding the aforementioned technologies, when a workpiece has a structure that requires injection molding of soft plastic of different thicknesses, it is usually necessary to use multiple drive components to move different blades and use blades with different strokes to achieve injection molding of soft plastic of different thicknesses. However, installing multiple drive components will occupy more space and increase the cost of use. Therefore, there is an urgent need for an injection molding structure that can injection mold soft plastic of different thicknesses while reducing production costs. Summary of the Invention

[0005] In order to reduce production costs while enabling the injection molding of soft rubber of different thicknesses, this application provides a core-pulling structure for soft rubber blades of different thicknesses.

[0006] This application provides a core-pulling structure suitable for soft rubber blades of different thicknesses, employing the following technical solution: A core-pulling structure for soft rubber blades of different thicknesses includes a support frame for supporting the workpiece. Blade 1 and Blade 2 are slidably connected to the support frame laterally. Blade 1 and Blade 2 are arranged side-by-side. Blade 1 and the workpiece cooperate to form a cavity 1 for pouring soft rubber. Blade 2 and the workpiece cooperate to form a cavity 2. The support frame has a push plate located on the side of Blade 1 and Blade 2 away from the workpiece. The support frame has a pusher for moving the push plate closer to or away from the workpiece. A connector is provided between the push plate and Blade 1. The push plate drives Blade 1 to move synchronously through the connector. The push plate has a movable plate adapted to Blade 2, located at the lower end of Blade 2 and abutting against it. A limit strip is fixedly connected to the upper end of the movable plate. Blade 2 has a movable groove laterally adapted to the limit strip. The limit strip is inserted into the movable groove. The difference between the width of the movable groove and the width of the limit strip corresponds to the difference in width between cavity 1 and cavity 2. The support frame has a limit block 1 for positioning Blade 2.

[0007] By adopting the above technical solution, the support frame supports the workpiece so that the position of the workpiece to be filled with soft glue is directly opposite to blade one and blade two. The pusher moves the push plate towards the workpiece, and blade one moves directly towards the workpiece under the drive of the push plate. When the push plate moves, it drives the limiting strip to move. The limiting strip moves along the width direction and abuts against blade one. Then, the limiting strip drives blade one to move synchronously, so that blade one and blade two abut against the workpiece synchronously. At this time, there is a certain gap between the side of the limiting strip away from the workpiece and blade one. The pusher moves the pusher plate away from the workpiece, causing the pusher plate to retract the first blade, creating cavity one between the first blade and the workpiece. As the pusher plate moves, the limiting strip slides freely within the sliding groove, while the second blade remains stationary. When the side of the limiting strip away from the workpiece contacts the second blade, it moves the second blade synchronously, creating cavity two between the second blade and the workpiece. When the second blade contacts the first limiting block, it remains stationary. At this point, there is a displacement difference in the width between cavity one and cavity two. Soft rubber is injected into both cavities one and two, resulting in soft rubber of different thicknesses. By using a single drive to move the first and second blades by different strokes, it is possible to reduce the production cost of injection molding structures while simultaneously injection molding soft rubber of varying thicknesses.

[0008] Optionally, the connector includes a straight plate and a positioning edge. The straight plate is located at the lower end of the push plate and is fixed along the length of the push plate. The positioning edge is fixedly connected to the side of the straight plate away from the push plate. A blade is fixedly connected to an insert block, which is inserted between the positioning edge and the push plate, and the insert block abuts against both the push plate and the positioning edge.

[0009] By adopting the above technical solution, the push plate supports the positioning plate through the straight plate, so that the positioning line cooperates with the push plate to limit the insertion block. When the push plate moves, it drives the insertion block to move through the straight plate and the positioning edge, and then drives the first blade to move synchronously through the insertion block. The first blade is detachably connected to the push plate, which facilitates the replacement and maintenance of the first blade.

[0010] Optionally, the upper end of the blade is threaded with a number of positioning bolts, and the positioning edge is provided with a number of threaded holes corresponding to the positioning bolts along the length direction. The positioning bolts pass through the blade and are threadedly engaged with the corresponding threaded holes.

[0011] By adopting the above technical solution, the positioning bolt and the corresponding threaded hole are matched to position the blade, which helps to improve the connection stability between the blade and the positioning edge.

[0012] Optionally, the pushing component includes a cylinder and a guide block. The cylinder is located at the lower end of the pushing plate and is arranged vertically. The guide block is fixedly connected to the output end of the cylinder and is gradually inclined away from the pushing plate from bottom to top. The pushing plate has a guide groove adapted to the guide block. The guide block is inserted into the guide groove and is slidably connected to the pushing plate.

[0013] By adopting the above technical solution, the cylinder pushes the guide block to move vertically, so that the guide block slides along the length of the guide groove. When the guide block moves vertically upward, it drives the push plate to move closer to the workpiece through the guide groove. When the guide block moves vertically downward, it drives the push plate to move away from the workpiece.

[0014] Optionally, the limiting block one is fixedly connected to the support frame, and the blade two has a moving opening adapted to the limiting block one. The limiting block one passes through the moving opening from bottom to top, and the difference in width between the moving opening and the limiting block one is adapted to the overall width of the cavity two.

[0015] By adopting the above technical solution, when the second blade contacts the workpiece, the side of the moving port abuts against the side of the first limiting block near the push plate. When the second blade moves away from the workpiece under the action of the limiting strip, the other side of the moving port abuts against the side of the first limiting block near the workpiece. The first limiting block limits the second blade, thereby improving the positioning accuracy of the second blade's movement position.

[0016] Optionally, the support frame is fixed with a limiting block two that is adapted to the blade one. The blade one has a relief opening that is adapted to the limiting block two. The limiting block two is located inside the relief opening, and the width difference between the limiting block two and the relief opening corresponds to the width of the cavity one.

[0017] By adopting the above technical solution, the limiting block two cooperates with the clearance port to limit the movement of the blade one, which helps to improve the positioning accuracy of the blade one and thus improve the injection precision of the soft rubber in the cavity one.

[0018] Optionally, both the first limiting block and the second limiting block are provided with adjusting components. The adjusting components include pressure plates and several measuring plates. For all measuring plates in the same adjusting component, the thickness of all measuring plates is different. All measuring plates are located on the side of the first or second limiting block closer to the workpiece. Pressure blocks are fixedly connected to the upper end of the measuring plates. The pressure blocks of all measuring plates are staggered. The pressure plate is located at the upper end of all pressure blocks, and the pressure plate has a pressure groove that matches the pressure block. The pressure block is located in the corresponding pressure groove and fits against the pressure plate. The pressure plate is threadedly connected with fixing bolts. The upper end of both the first and the second limiting blocks is provided with threaded holes that match the fixing bolts.

[0019] By adopting the above technical solution, in the initial state, the fixing bolts and threaded holes 2 cooperate to position the pressure plate, so that the pressure plate presses and positions all the pressure blocks through the pressure groove, thereby achieving the positioning of all measuring plates. The measuring plates have different thicknesses. When processing soft rubber of different thicknesses, by disassembling all measuring plates of the same thickness in limit block 1 and limit block 2, the movement range of blade 1 and blade 2 can be adjusted, thereby adjusting the width of cavity 1 and cavity 2, which facilitates the production of soft rubber of different thicknesses.

[0020] Optionally, the limiting strip has several top plates on the side near the push plate. The top plates are evenly arranged vertically, and the width of the top plates gradually decreases from top to bottom. A trapezoidal block is fixedly connected to the end of the top plate away from the push plate. The push plate has a trapezoidal groove that matches the trapezoidal block. The trapezoidal block is inserted into the trapezoidal groove and abuts against the limiting strip.

[0021] By adopting the above technical solution, the limiting strip limits the trapezoidal block through the trapezoidal groove, and then pushes the top plate for positioning. When the limiting strip moves, it drives the top plate to move, so that the widest limiting strip drives the second blade to move through the top plate. By disassembling or installing the top plate, the width difference between the limiting strip and the moving groove can be adjusted, which facilitates the adjustment of the width of the second cavity and the width difference between the first cavity and the second cavity. This is beneficial for producing soft rubber of different thicknesses and improves the overall applicability of the structure.

[0022] In summary, this application includes at least one of the following beneficial technical effects: 1. The support frame supports the workpiece so that the position of the workpiece to be filled with soft glue is directly opposite blade one and blade two. The pusher moves the push plate towards the workpiece. Blade one moves directly towards the workpiece under the push plate. When the push plate moves, it drives the limiting strip to move. The limiting strip moves along the width direction and abuts against blade one. Then, the limiting strip drives blade one to move synchronously, so that blade one and blade two abut against the workpiece at the same time. At this time, there is a certain gap between the side of the limiting strip away from the workpiece and blade one. The pusher moves the push plate away from the workpiece, causing the push plate to retract the first blade, creating cavity one between the first blade and the workpiece. As the push plate moves, the limiting strip slides freely within the sliding groove, while the second blade remains stationary. When the side of the limiting strip away from the workpiece contacts the second blade, it moves the second blade synchronously, creating cavity two between the second blade and the workpiece. When the second blade contacts the first limiting block, it remains stationary. At this point, there is a displacement difference between the widths of cavity one and cavity two. Soft rubber is injected into both cavities, resulting in soft rubber of different thicknesses. By using a single drive to move the first and second blades by different strokes, it is possible to reduce the production cost of injection molding structures while simultaneously injection molding soft rubber of varying thicknesses. 2. The cylinder pushes the guide block to move vertically, causing the guide block to slide along the length of the guide groove. When the guide block moves vertically upward, it drives the push plate to move closer to the workpiece through the guide groove. When the guide block moves vertically downward, it drives the push plate to move away from the workpiece. 3. When the second blade contacts the workpiece, the side of the moving port abuts against the side of the first limiting block near the push plate. When the second blade moves away from the workpiece under the action of the limiting strip, the other side of the moving port abuts against the side of the first limiting block near the workpiece. The first limiting block limits the second blade, thereby improving the positioning accuracy of the second blade's movement position. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the overall structure of Example 1.

[0024] Figure 2 This is a schematic diagram designed to highlight the structure of Blade 1 and Blade 2.

[0025] Figure 3 This is a schematic diagram designed to highlight the connection between the blade and the push plate.

[0026] Figure 4 This is a schematic diagram designed to highlight the structure of the second blade and the limiting strip.

[0027] Figure 5 This is a structural schematic diagram of Example 2.

[0028] Figure 6 This is a schematic diagram designed to highlight the position of the adjustment component.

[0029] Figure 7 This is a schematic diagram designed to highlight the structure of the adjustment component.

[0030] Figure 8 This is a schematic diagram of the top plate and the limiting strip in Embodiment 3.

[0031] Explanation of reference numerals in the attached drawings: 1. Support frame; 10. Workpiece; 11. Limiting block one; 12. Limiting block two; 13. Threaded hole two; 21. Blade one; 211. Insert block; 212. Positioning bolt; 213. Clearance opening; 22. Blade two; 221. Moving groove; 222. Moving opening; 3. Push plate; 311. Moving plate; 312. Limiting strip; 313. Trapezoidal groove; 32. Connecting piece; 321. Straight plate; 322. Positioning edge; 323. Threaded hole one; 33. Guide groove; 4. Pushing piece; 41. Cylinder; 42. Guide block; 5. Adjusting piece; 51. Measuring plate; 511. Pressure block; 52. Pressure plate; 521. Fixing bolt; 522. Pressure groove; 6. Top plate; 61. Trapezoidal block. Detailed Implementation

[0032] The present application will be further described in detail below with reference to all the accompanying drawings.

[0033] This application discloses a core-pulling structure for soft rubber blades of different thicknesses. Example 1

[0034] Reference Figure 1 and Figure 2 A core-pulling structure for soft rubber blades of different thicknesses includes a support frame 1. The support frame 1 is used to position the workpiece 10 that needs to be poured with soft rubber. The support frame 1 has a cavity, in which blade 1 21 and blade 22 are arranged side by side. Blade 1 21 and blade 22 are located in the same plane and are slidably connected to the support frame 1.

[0035] Reference Figure 2 and Figure 3 A push plate 3 is slidably connected to the support frame 1. Under the action of the support frame 1, the push plate 3 moves closer to or further away from the workpiece 10. The push plate 3 is located on the side of the first blade 21 and the second blade 22 away from the workpiece 10. A connecting member 32 is provided between the push plate 3 and the first blade 21. The connecting member 32 includes a straight plate 321 and a positioning edge 322. The straight plate 321 is located at the end of the push plate 3 closer to the workpiece 10 and below the first blade 21. The positioning edge 322 is fixedly connected to the upper end of the straight plate 321 and is located on the side of the straight plate 321 away from the push plate 3. When the push plate 3 moves, it drives the straight plate 321 and the positioning edge 322 to move synchronously. There is a gap between the positioning edge 322 and the push plate 3.

[0036] Reference Figure 2 and Figure 3A plug 211 is fixed to the lower end of the blade 21. The plug 211 is inserted between the positioning edge 322 and the push plate 3. When the push plate 3 moves closer to the workpiece 10, the push plate 3 contacts the side of the blade 21 away from the workpiece 10, thereby driving the blade 21 to move towards the workpiece 10. When the push plate 3 moves away from the workpiece 10, it causes the positioning edge 322 to abut against the side of the plug 211 near the workpiece 10, thereby driving the blade 21 to move through the plug 211.

[0037] Reference Figure 2 and Figure 3 The upper end of the blade 21 is provided with multiple positioning bolts 212, and the positioning edge 322 has multiple threaded holes 323 that are adapted to the positioning bolts 212. The positioning bolts 212 are threaded through the blade 21 and connected to the threaded holes 323, thereby positioning the blade 21 and improving the installation stability of the blade 21. When it is necessary to replace or maintain the blade 21, all positioning bolts 212 are removed to release the restriction on the blade 21, making the replacement or maintenance of the blade 21 more convenient.

[0038] Reference Figure 3 and Figure 4 The push plate 3 is fixed with a movable plate 311. When the push plate 3 moves, it drives the movable plate 311 to move synchronously. The movable plate 311 is located below the second blade 22, and the upper end face of the movable plate 311 abuts against the lower end face of the second blade 22. A limit strip 312 is fixed at the upper end of the movable plate 311. When the movable plate 311 moves, it drives the limit strip 312 to move. A movable groove 221 adapted to the limit strip 312 is opened at the lower end of the second blade 22. The limit strip 312 is located in the movable groove 221 and moves along the width direction of the movable groove 221. The width of the limit strip 312 is smaller than the width of the movable groove 221.

[0039] Reference Figure 3 and Figure 4 Support frame 1 (reference) Figure 1 A pushing component 4 is provided, which includes a cylinder 41 and a guide block 42. The cylinder 41 is mounted on the support frame 1 (see reference). Figure 1 At the lower end, the push plate 3 is located above the cylinder 41, and the output end of the cylinder 41 points from bottom to top toward the push plate 3. The guide block 42 is installed at the output end of the cylinder 41. By manipulating the output end of the cylinder 41, the guide block 42 is driven to move vertically. The guide block 42 is gradually tilted away from the workpiece 10 from bottom to top. The push plate 3 has a guide groove 33 vertically. The guide groove 33 is also tilted, and the tilt direction of the guide groove 33 is consistent with the tilt direction of the guide block 42.

[0040] Reference Figure 3 and Figure 4The guide block 42 is located within the guide groove 33 and is slidably connected to the push plate 3 along the length of the guide groove 33. When the cylinder 41 drives the guide block 42 to move vertically, the guide block 42 drives the push plate 3 to slide through the guide groove 33. When the guide block 42 moves vertically away from the cylinder 41, it drives the push plate 3 towards the workpiece 10 (reference). Figure 1 When the guide block 42 moves vertically towards the cylinder 41, it drives the push plate 3 away from the workpiece 10. When the push plate 3 moves, it drives the first blade 21 and the second blade 22 to move synchronously.

[0041] Reference Figure 2 and Figure 4 The support frame 1 has a fixed limiting block 11 and multiple limiting blocks 22. The blade 22 has a vertically opening 222 that matches the limiting block 11. The limiting block 11 passes through the moving opening 222 from bottom to top. The width of the limiting block 11 in the direction from the workpiece 10 to the push plate 3 is smaller than the width of the moving opening 222. The blade 21 has multiple vertically openings 213 that match the limiting blocks 22. The limiting blocks 22 pass through the limiting openings 213 from bottom to top, and the width of the limiting blocks 22 is smaller than the width of the limiting openings 213.

[0042] Reference Figure 2 and Figure 3 When cylinder 41 drives push plate 3 to approach workpiece 10 via guide block 42, push plate 3 drives blade 21 to move synchronously. At this time, blade 21 gradually moves towards the side of limit block 12 away from workpiece 10. Initially, the side of blade 22 away from workpiece 10 is in contact with the side of push plate 3 near workpiece 10, and the side of limit block 312 near workpiece 10 is in contact with blade 22. When push plate 3 moves, it drives blade 22 to move, causing blade 22 to move towards limit block 11. At the same time that blade 21 is in contact with workpiece 10, the side of limit block 12 away from workpiece 10 is in contact with the inner wall of clearance opening 213. At the same time that blade 22 is in contact with workpiece 10, limit block 11 is in contact with the inner wall of movement opening 222.

[0043] Reference Figure 2 and Figure 4 The cylinder 41 drives the push plate 3 to move away from the workpiece 10, causing the push plate 3 to move the first blade 21. At this time, the gap between the first blade 21 and the workpiece 10 forms cavity one. When the push plate 3 moves, it drives the limiting strip 312 to move synchronously. The limiting strip 312 drives the second blade 22 to move through the friction between it and the second blade 22, so that the gap between the second blade 22 and the workpiece 10 forms cavity two.

[0044] Reference Figure 2 and Figure 4When the second blade 22 comes into contact with the first limiting block 11, it stops. At this time, the push plate 3 drives the first blade 21 to continue moving, so that the limiting strip 312 moves freely in the moving groove 221. When the first blade 21 comes into contact with the side of the second limiting block 12 near the workpiece 10, the limiting strip 312 fits against the inner wall of the moving groove 221. At this time, there is a difference in the width of movement between the first cavity and the second cavity. Soft glue is poured into the first cavity and the second cavity, which makes it easier to generate soft glue of different thicknesses in the first cavity and the second cavity.

[0045] Reference Figure 2 and Figure 4 When the friction between the limiting strip 312 and the moving plate 311 and the second blade 22 is insufficient to move the first blade 21, the moving plate 3 first causes the limiting strip 312 to move freely within the moving groove 221. When the limiting strip 312 comes into contact with the inner wall of the moving groove 221, it moves the second blade 22. The width difference between the limiting strip 312 and the moving groove 221 is consistent with the width difference between cavity one and cavity two. By setting the limiting block one 11 and the limiting block two 12, the movement range of the first blade 21 and the second blade 22 is limited, which helps to improve the accuracy of the movement range of the first blade 21 and the second blade 22.

[0046] The implementation principle of Example 1 is as follows: When pouring soft rubber, the cylinder 41 drives the push plate 3 to move, so that the push plate 3 drives the blade 21 to move directly. At the same time, the width difference between the limiting strip 312 and the moving groove 221 causes a displacement difference between the blade 21 and the blade 22. The limiting block 11 limits the blade 22, so that the blade 21 and the blade 22 have different strokes. After the soft rubber is injected into cavity 1 and cavity 2, two kinds of soft rubber with different thicknesses are formed. Thus, while injecting soft rubber of different thicknesses, the cylinder 41 causes the blade 21 and the blade 22 to have different strokes, which helps to reduce the production cost of the injection molding structure. Moreover, the cylinder 41 helps to reduce the space occupied by multiple drive mechanisms and optimize the spatial structure of the injection molding equipment. Example 2

[0047] Reference Figure 5 and Figure 6 The difference between this embodiment and embodiment 1 is that the structures of the first limiting block 11 and the second limiting block 12 are different. In this embodiment, both the first limiting block 11 and the second limiting block 12 are provided with adjusting members 5.

[0048] Reference Figure 6 and Figure 7 The adjusting component 5 includes multiple measuring plates 51 and a pressure plate 52. In this embodiment, there are three measuring plates 51, each with a different thickness. All measuring plates 51 are located between the limiting block 11 or the limiting block 22 and the workpiece 10 (see reference). Figure 5Between the three measuring plates 51, the blade 22 or the blade 21 moves away from the workpiece 10 and moves closer to the corresponding measuring plate 51. All the measuring plates 51 cooperate to limit the blade 21 and the blade 22. When the blade 21 or the blade 22 touches the measuring plate 51, the width of the cavity 1 and the cavity 2 reaches its maximum value.

[0049] Reference Figure 6 and Figure 7 All measuring plates 51 have pressure blocks 511 at their upper ends. All pressure blocks 511 are located in the same plane and are located below the pressure plate 52. The pressure plate 52 is equipped with fixing bolts 521. Limiting block 11 and limiting block 2 12 are both provided with threaded holes 13. The fixing bolts 521 are threaded through the pressure plate 52 and connected to the corresponding bolt holes 13, thereby positioning the pressure plate 52. The lower end of the pressure plate 52 is provided with multiple pressure grooves 522. The pressure blocks 511 are all located in the pressure grooves 522 and abut against the pressure plate 52. The pressure plate 52 limits the pressure blocks 511 through the pressure grooves 522, thereby achieving the positioning of all measuring plates 51.

[0050] The implementation principle of Example 2 is as follows: When it is necessary to process soft rubber of different thicknesses, by disassembling the fixing bolts 521, the positioning of all measuring plates 51 by the pressure plate 52 is released. By removing all measuring plates 51 of the same thickness, the overall thickness of all measuring plates 51 is adjusted, which facilitates the adjustment of the movement range of blade one 21 and blade two 22, so that cavity one and cavity two have different thicknesses, which makes it easier to adjust the thickness of the soft rubber and improves the applicability of the injection molding structure. Example 3

[0051] Reference Figure 8 The difference between this embodiment and Embodiment 2 lies in the structure of the limiting strip 312. The limiting strip 312 has three sets of top plates 6 on the side near the push plate 3, which are evenly arranged vertically, with the width of each set gradually decreasing from top to bottom. A trapezoidal block 61 is fixed to the side of each top plate 6 near the limiting strip 312. The limiting strip 312 has trapezoidal grooves 313 that fit the trapezoidal blocks 61. The trapezoidal blocks 61 are inserted into the trapezoidal grooves 313 and are slidably connected to the limiting strip 312 along the length of the trapezoidal grooves 313.

[0052] Reference Figure 8 The limiting bar 312 limits the top plate 6 via the trapezoidal block 61, so that when the limiting bar 312 moves, it drives all the top plates 6 to move. When the limiting bar 312 approaches the workpiece 10 (reference), Figure 1When one side of the top plate 6 abuts against the blade 21, the distance between the side of the top plate 6 away from the limiting strip 312 and the inner wall of the moving groove 221 is the width difference between cavity one and cavity two. Furthermore, a connecting plate is fixed to the trapezoidal block 61, and the connecting plate is equipped with screws. The screws pass through the connecting plate and are threadedly connected to the limiting strip 312. The screws and the limiting strip 312 cooperate to limit the trapezoidal block 61, thereby improving the connection stability between the limiting strip 312 and the top plate 6. It can be understood that this embodiment can be combined with embodiment 2 to meet more production needs.

[0053] The implementation principle of Example 3 is as follows: by removing the screws, the trapezoidal block 61 can be disassembled, which facilitates the disassembly and replacement of the top plate 6, and facilitates the adjustment of the distance between the side of the top plate 6 away from the limiting strip 312 and the limiting strip 312, thereby adjusting the width difference between cavity one and cavity two, and thus facilitating the adjustment of the width difference of the soft rubber in cavity one and cavity two.

[0054] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A core-pulling structure suitable for soft rubber blades of different thicknesses, characterized in that: The support frame (1) includes a support frame (1) for supporting the workpiece (10). The support frame (1) is laterally slidably connected to a first blade (21) and a second blade (22). The first blade (21) and the second blade (22) are arranged side by side. The first blade (21) and the workpiece (10) cooperate to form a cavity one for pouring soft glue, and the second blade (22) and the workpiece (10) cooperate to form a cavity two. The support frame (1) is provided with a push plate (3). The push plate (3) is located on the side of the first blade (21) and the second blade (22) away from the workpiece. On one side of (10), the support frame (1) is provided with a pusher (4) for driving the pusher plate (3) to move closer to or away from the workpiece (10). A connector (32) is provided between the pusher plate (3) and the first blade (21). The pusher plate (3) drives the first blade (21) to move synchronously through the connector (32). The pusher plate (3) is provided with a moving plate (311) adapted to the second blade (22). The moving plate (311) is located at the lower end of the second blade (22) and abuts against the second blade (22). A limiting strip (312) is fixedly connected to the upper end of the moving plate (311). The second blade (22) has a moving groove (221) adapted to the limiting strip (312) along the transverse direction. The limiting strip (312) is inserted into the moving groove (221). The difference between the width of the moving groove (221) and the width of the limiting strip (312) corresponds to the difference between the width of cavity one and cavity two. The support frame (1) is provided with a limiting block one (11) for positioning the second blade (22). The connecting piece (32) It includes a straight plate (321) and a positioning edge (322). The straight plate (321) is located at the lower end of the push plate (3) and is fixed along the length of the push plate (3). The positioning edge (322) is fixedly connected to the side of the straight plate (321) away from the push plate (3). The blade (21) is fixedly connected to a plug (211). The plug (211) is inserted between the positioning edge (322) and the push plate (3), and the plug (211) abuts against both the push plate (3) and the positioning edge (322). The pusher (4) includes a cylinder (41) and a guide block (42). The cylinder (41) is located at the lower end of the push plate (3) and is arranged vertically. The guide block (42) is fixedly connected to the output end of the cylinder (41) and is gradually inclined away from the push plate (3) from bottom to top. The push plate (3) has a guide groove (33) adapted to the guide block (42). The guide block (42) is inserted into the guide groove (33) and is slidably connected to the push plate (3). The limiting block one (11) is fixedly connected to the support frame (1), and the blade two (22) has a moving opening (222) adapted to the limiting block one (11). The limiting block one (11) passes through the moving opening (222) from bottom to top. The difference in width between the moving opening (222) and the limiting block one (11) is adapted to the overall width of the cavity two. The support frame (1) is fixed with a limiting block two (12) adapted to the blade one (21). The blade one (21) has a relief opening (213) adapted to the limiting block two (12). The limiting block two (12) is located in the relief opening (213). The width difference between the limiting block two (12) and the relief opening (213) corresponds to the width of the cavity one.

2. The core-pulling structure for soft rubber blades of different thicknesses according to claim 1, characterized in that: The upper end of the blade (21) is threaded with several positioning bolts (212), and the positioning edge (322) is provided with several threaded holes (323) that correspond one-to-one with the positioning bolts (212) along the length direction. The positioning bolts (212) pass through the blade (21) and are threadedly engaged with the corresponding threaded holes (323).

3. The core-pulling structure for soft rubber blades of different thicknesses according to claim 1, characterized in that: Both the first limiting block (11) and the second limiting block (12) are provided with adjusting components (5). The adjusting component (5) includes a pressure plate (52) and several measuring plates (51). For all the measuring plates (51) in the same adjusting component (5), the thickness of all the measuring plates (51) is different. All the measuring plates (51) are located on the side of the first limiting block (11) or the second limiting block (12) closer to the workpiece (10). The upper end of the measuring plate (51) is fixedly connected to a pressure block (511). The thickness of all the measuring plates (51) is different. The pressure blocks (511) are staggered, and the pressure plate (52) is located at the upper end of all the pressure blocks (511). The pressure plate (52) has a pressure groove (522) that matches the pressure block (511). The pressure block (511) is located in the corresponding pressure groove (522) and fits against the pressure plate (52). The pressure plate (52) is threadedly connected with a fixing bolt (521). The upper ends of the first limiting block (11) and the second limiting block (12) are both provided with threaded holes (13) that match the fixing bolt (521).

4. The core-pulling structure for soft rubber blades of different thicknesses according to claim 1, characterized in that: The limiting strip (312) has several top plates (6) on the side near the push plate (3). The top plates (6) are evenly arranged vertically, and the width of the top plates (6) gradually decreases from top to bottom. A trapezoidal block (61) is fixedly connected to the end of the top plate (6) away from the push plate (3). The push plate (3) has a trapezoidal groove (313) that matches the trapezoidal block (61). The trapezoidal block (61) is inserted into the trapezoidal groove (313) and abuts against the limiting strip (312).

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