A mold for producing slide cylinders

Abstract

This utility model discloses a mold for producing slide cylinders, relating to the field of mold technology. The utility model includes a lower mold, and further includes: an injection molding section disposed on the lower mold; a demolding section mounted on the lower mold; and a vibration section disposed on the lower mold. The demolding section includes a lifting assembly disposed on the lower mold; and a transmission assembly mounted on the lower mold. The lifting assembly includes a threaded rod rotatably connected to the inner wall of the bottom of the lower mold. By incorporating a demolding section, this utility model solves the problem of unstable transmission in existing demolding structures during use. This instability directly leads to uneven force and directional deviation when pushing the mold, causing force imbalance during demolding, resulting in deformation or even damage, ultimately affecting the molding quality of the mold and increasing product defect rate and production losses.

Description

Technical Field

[0001] This utility model belongs to the field of mold technology, and in particular relates to a mold for the production of slide cylinders. Background Technology

[0002] With the deepening of Industry 4.0 and intelligent manufacturing, high-end fields such as automated production lines, robot integration, and semiconductor manufacturing have put forward stringent requirements for the precision, stability, and response speed of actuators. As a core component for achieving high-precision linear motion, the market demand for slide cylinders continues to expand. In 2024, the domestic market size reached approximately RMB 3.5 billion, with a production volume exceeding 1.5 million units. At the same time, the downstream industry's demand for customized slide cylinders has increased significantly. The proportion of customized products has increased from 35% in 2021 to 48% in 2024, and higher standards have been put forward for the structural compactness, dimensional accuracy, and sealing reliability of core components such as cylinder bodies and pistons.

[0003] However, existing demolding structures can experience transmission instability during use. This can directly lead to uneven force and directional deviation when pushing the mold, causing the mold to be unbalanced in terms of force during demolding, which can then lead to deformation or even damage. Ultimately, this affects the molding quality of the mold and increases the product defect rate and production losses. Utility Model Content

[0004] The purpose of this utility model is to provide a mold for the production of slide cylinders. By setting a demolding part, the problem of unstable transmission that occurs in the existing demolding structure during use is solved. This directly leads to uneven force and directional deviation when pushing the mold, causing the mold to be unbalanced in force during demolding, which in turn causes deformation or even damage, ultimately affecting the molding quality of the mold and increasing the defect rate and production loss of the products.

[0005] To solve the above-mentioned technical problems, this utility model is achieved through the following technical solution:

[0006] This utility model relates to a mold for producing a slide cylinder, comprising a lower mold, and further comprising: an injection molding part disposed on the lower mold; a demolding part mounted on the lower mold; and an oscillating part disposed on the lower mold. The demolding part includes a lifting assembly disposed on the lower mold; and a transmission assembly mounted on the lower mold. The lifting assembly includes a threaded rod rotatably connected to the inner wall of the bottom of the lower mold. A fixing frame is threadedly connected to the outer wall of the threaded rod. Several top blocks are fixedly connected to the top of the fixing frame, and the top blocks extend outside the lower mold. A meshing element is provided on the threaded rod, and four top blocks are provided on the fixing frame, distributed at the four corners of the fixing frame. The meshing element includes a gear fixedly connected to the outer wall of the threaded rod, and the gear meshes with a rack.

[0007] Furthermore, the injection molding part includes a fixed bracket fixedly connected to the top of the lower mold, an electric telescopic rod fixedly connected to the top of the fixed bracket, the electric telescopic rod passing through the fixed bracket, and an upper mold fixedly connected to the output end of the electric telescopic rod, the upper mold being adapted to the lower mold.

[0008] Furthermore, the oscillation section includes a buffer assembly mounted on the lower mold; and a pressing assembly disposed on the lower mold, with both the buffer assembly and the pressing assembly located inside the lower mold.

[0009] Furthermore, the transmission assembly includes a rack mounted on the lower mold, the rack extending into the lower mold and slidably connected to the lower mold. A fixing plate is fixedly connected to the front side of the rack, and a spring is sleeved on the outer wall of the rack. The front side of the spring is fixedly connected to the fixing plate, and the rear side of the spring is fixedly connected to the lower mold. The initial state of the spring is its natural state. The elastic element includes a second spring sleeved on a sliding rod. The top of the second spring is fixedly connected to the sliding plate, and the bottom of the second spring is fixedly connected to the fixing plate. The initial state of the second spring is its natural state.

[0010] Furthermore, the buffer assembly includes several connecting rods fixedly connected to the inner wall of the top of the lower mold, a second fixing plate fixedly connected to the bottom of the several connecting rods, several sliding rods fixedly connected to the top of the second fixing plate, a sliding plate slidably connected to the several sliding rods, several rubber heads fixedly connected to the top of the sliding plate, an elastic element provided on the sliding rod, and the top of the rubber head is made of rubber.

[0011] Furthermore, the pressing assembly includes a connecting plate fixedly connected to the left side of the sliding plate, a motor fixedly connected to the inner wall of the top of the lower mold, a rotating shaft fixedly connected to the output shaft of the motor via a coupling, a pressing plate fixedly connected to the outer wall of the rotating shaft, and the pressing plate in contact with the connecting plate.

[0012] This utility model has the following beneficial effects:

[0013] 1. By setting up a demolding section, after the mold cools down, the electric telescopic rod first lifts the upper mold, then pushes the fixing plate one, which causes the rack and spring one to slide into the lower mold. The rack slides and drives the gear to rotate, which in turn drives the threaded rod to rotate. The threaded rod causes the fixing frame to slide upward through the threaded transmission. Finally, the top block on the fixing frame pushes the mold out of the lower mold to complete the demolding. After the mold is removed, the fixing plate one is released. The elastic force of the spring one will drive the rack, gear, threaded rod, fixing frame and top block to return to their original positions, preparing for the next use. This avoids problems such as uneven pushing force and directional deviation caused by unstable transmission, effectively preventing the mold from deforming or being damaged during the demolding process and ensuring the quality of mold forming.

[0014] 2. By setting up a vibration section and activating the electric telescopic rod to align the upper and lower molds, injection material is poured in. Subsequently, the motor drives the rotating shaft and lower pressure plate to rotate. When the lower pressure plate rotates, it presses down on the connecting plate, causing the sliding plate to slide down along the sliding rod and compress the second spring. After the lower pressure plate passes the connecting plate, the compressed second spring quickly rebounds, pushing the sliding plate upward. The rubber head at its top then strikes the lower mold. Through this continuous mechanical transmission and elastic reset process, the lower mold vibrates, thereby expelling air bubbles from the injection material. This effectively promotes the rise and expulsion of air bubbles in the injection material, reducing internal porosity and improving the structural density of the molded product.

[0015] Of course, any product implementing this utility model does not necessarily need to achieve all of the advantages described above at the same time. Attached Figure Description

[0016] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0018] Figure 2 This is a partial cross-sectional view of the demolding part of this utility model;

[0019] Figure 3 This is a partial cross-sectional view of the top block of this utility model;

[0020] Figure 4 This is a partial cross-sectional view of the vibration section of this utility model;

[0021] Figure 5 This utility model Figure 2 A magnified structural diagram of A in the middle;

[0022] Figure 6 This utility model Figure 2 A magnified structural diagram of B in the diagram;

[0023] Figure 7 This utility model Figure 4 A magnified structural diagram of C;

[0024] Figure 8 This utility model Figure 4 A magnified structural diagram of D in the diagram.

[0025] The attached diagram lists the components represented by each number as follows:

[0026] 1. Injection Molding Section; 111. Lower Mold; 112. Fixed Bracket; 113. Electric Telescopic Rod; 114. Upper Mold; 2. Demolding Section; 21. Lifting Assembly; 211. Threaded Rod; 212. Fixed Frame; 213. Ejector Block; 214. Gear; 22. Transmission Assembly; 221. Rack; 222. Fixed Plate I; 223. Spring I; 3. Vibration Section; 31. Buffer Assembly; 311. Connecting Rod; 312. Fixed Plate II; 313. Sliding Rod; 314. Sliding Plate; 315. Rubber Head; 316. Spring II; 32. Pressing Assembly; 321. Connecting Plate; 322. Motor; 323. Rotating Shaft; 324. Pressing Plate. Detailed Implementation

[0027] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0028] Please see Figure 1-8 As shown, this utility model is a mold for producing a slide cylinder, including a lower mold 111, and further including: an injection molding part 1, which is disposed on the lower mold 111; a demolding part 2, which is installed on the lower mold 111; and an oscillating part 3, which is disposed on the lower mold 111; the injection molding part 1 includes a fixed bracket 112 fixedly connected to the top of the lower mold 111, an electric telescopic rod 113 fixedly connected to the top of the fixed bracket 112, the electric telescopic rod 113 passing through the fixed bracket 112, and an upper mold 114 fixedly connected to the output end of the electric telescopic rod 113, the upper mold 114 being adapted to the lower mold 111;

[0029] The demolding section 2 includes a lifting assembly 21, which is mounted on the lower mold 111; and a transmission assembly 22, which is mounted on the lower mold 111. The lifting assembly 21 includes a threaded rod 211 rotatably connected to the inner wall of the bottom of the lower mold 111. A fixing frame 212 is threadedly connected to the outer wall of the threaded rod 211. Several top blocks 213 are fixedly connected to the top of the fixing frame 212, and the top blocks 213 extend to the outside of the lower mold 111. A meshing element is provided on the threaded rod 211, and four top blocks 213 are provided on the fixing frame 212, which are distributed at the four corners of the fixing frame 212. The meshing element includes a gear 214 fixedly connected to the outer wall of the threaded rod 211, which meshes with a rack 221. The transmission assembly 22 includes a rack 221 mounted on the lower mold 111, which extends to the bottom of the lower mold 111. Inside mold 111, rack 221 is slidably connected to lower mold 111. A fixing plate 222 is fixedly connected to the front side of rack 221. A spring 223 is sleeved on the outer wall of rack 221. The front side of spring 223 is fixedly connected to fixing plate 222, and the rear side of spring 223 is fixedly connected to lower mold 111. The initial state of spring 223 is its natural state. The elastic element includes spring 316 sleeved on sliding rod 313. The top of spring 316 is fixedly connected to sliding plate 314, and the bottom of spring 316 is fixedly connected to fixing plate 312. The initial state of spring 316 is its natural state. By setting demolding part 2, problems such as uneven pushing force and directional deviation caused by unstable transmission are avoided, effectively preventing the mold from deforming or being damaged during demolding and ensuring the molding quality of the mold.

[0030] The oscillation section 3 includes a buffer assembly 31, which is mounted on the lower mold 111; and a pressing assembly 32, which is also mounted on the lower mold 111. Both the buffer assembly 31 and the pressing assembly 32 are located inside the lower mold 111. The buffer assembly 31 includes several connecting rods 311 fixedly connected to the inner wall of the top of the lower mold 111. A fixing plate 312 is fixedly connected to the bottom of the connecting rods 311. Several sliding rods 313 are fixedly connected to the top of the fixing plate 312. A sliding plate 314 is slidably connected to the sliding rods 313. Several sliding plates 314 are fixedly connected to the top of the sliding plates 314. A rubber head 315 is provided, and an elastic element is provided on the sliding rod 313. The top of the rubber head 315 is made of rubber. The pressing assembly 32 includes a connecting plate 321 fixedly connected to the left side of the sliding plate 314. A motor 322 is fixedly connected to the inner wall of the top of the lower mold 111. The output shaft of the motor 322 is fixedly connected to a rotating shaft 323 through a coupling. A pressing plate 324 is fixedly connected to the outer wall of the rotating shaft 323. The pressing plate 324 is in contact with the connecting plate 321. By setting the vibration part 3, the air bubbles in the injection molding material can be effectively made to float up and be discharged, reducing the internal porosity of the material and improving the structural density of the molded product.

[0031] It should be noted that the control of motor 322 in this application can all be achieved by using a program set in the control panel and inputting relevant parameters as needed for automated control. This control method can be set using existing technologies, such as PLC.

[0032] A specific application of this embodiment is as follows: During use, the electric telescopic rod 113 is activated, allowing it to align the upper mold 114 with the lower mold 111. Then, the injection material is poured into the mold. The motor 322 is then activated, causing the rotating shaft 323 and the lower pressure plate 324 to rotate. As the lower pressure plate 324 rotates, it presses the connecting plate 321 downwards. While pressing the connecting plate 321, the sliding plate 314 also moves downwards. As the sliding plate 314 slides, it slides on the sliding rod 313, compressing the spring 316. After the lower pressure plate 324 passes the connecting plate 321, it quickly pushes the sliding plate 314 upwards. At this time, the rubber head 315 on the sliding plate 314 strikes the lower mold 111, thus achieving a vibration effect on the lower mold 111. This causes air bubbles in the injection material to be expelled. This achieves the effect of removing air bubbles. After the mold has cooled down, the electric telescopic rod 113 is activated to lift the upper mold 114, and then the fixing plate 222 is pushed inward. At this time, the fixing plate 222, along with the rack 221 and the spring 223, slides into the lower mold 111. As the rack 221 slides, the gear 214 rotates. When the gear 214 rotates, it drives the threaded rod 211 to rotate as well. When the threaded rod 211 rotates, it drives the fixing bracket 212 to slide upward through the thread. When the fixing bracket 212 moves upward, it pushes the mold out of the lower mold 111 through the top block 213, thus achieving the demolding effect. After the mold is removed, the fixing plate 222 can be released. At this time, the spring 223 will reset the rack 221, the gear 214, the top block 213, and the fixing bracket 212, ready for the next use.

[0033] In the description of this specification, references to terms such as "an embodiment," "example," "specific example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0034] The preferred embodiments of this utility model disclosed above are merely illustrative of the present utility model. These preferred embodiments do not exhaustively describe all details, nor do they limit the utility model to the specific implementations described. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of this utility model, thereby enabling those skilled in the art to better understand and utilize it. This utility model is limited only by the claims and their full scope and equivalents.

Claims

1. A mold for producing slide cylinders, comprising a lower mold (111), characterized in that, Also includes: Injection molding part (1), said injection molding part (1) is disposed on the lower mold (111); Demolding part (2), said demolding part (2) is installed on the lower mold (111); An oscillating part (3) is disposed on the lower mold (111); The demolding part (2) includes a lifting assembly (21) disposed on the lower mold (111); and A transmission assembly (22) is mounted on the lower mold (111); The lifting assembly (21) includes a threaded rod (211) rotatably connected to the inner wall of the bottom of the lower mold (111). A fixing frame (212) is threadedly connected to the outer wall of the threaded rod (211). A plurality of top blocks (213) are fixedly connected to the top of the fixing frame (212). The plurality of top blocks (213) extend to the outside of the lower mold (111). Engaging parts are provided on the threaded rod (211). The fixing frame (212) is provided with four top blocks (213), which are distributed at the four corners of the fixing frame (212).

2. The mold for producing slide cylinders according to claim 1, characterized in that, The injection molding part (1) includes a fixed bracket (112) fixedly connected to the top of the lower mold (111), an electric telescopic rod (113) fixedly connected to the top of the fixed bracket (112), the electric telescopic rod (113) passes through the fixed bracket (112), and the output end of the electric telescopic rod (113) is fixedly connected to the upper mold (114). The upper mold (114) is adapted to the lower mold (111).

3. A mold for producing slide cylinders according to claim 2, characterized in that, The oscillation section (3) includes a buffer assembly (31) mounted on the lower mold (111); and A pressing assembly (32) is disposed on the lower mold (111); The buffer assembly (31) and the pressing assembly (32) are both located inside the lower mold (111).

4. A mold for producing slide cylinders according to claim 3, characterized in that, The transmission assembly (22) includes a rack (221) disposed on the lower mold (111), the rack (221) extending into the lower mold (111), the rack (221) being slidably connected to the lower mold (111), a fixing plate (222) being fixedly connected to the front side of the rack (221), a spring (223) being sleeved on the outer wall of the rack (221), the front side of the spring (223) being fixedly connected to the fixing plate (222), and the rear side of the spring (223) being fixedly connected to the lower mold (111). Among them, the initial state of spring 1 (223) is the natural state.

5. A mold for producing slide cylinders according to claim 4, characterized in that, The buffer assembly (31) includes several connecting rods (311) fixedly connected to the inner wall of the top of the lower mold (111). The bottom of the several connecting rods (311) is fixedly connected to a second fixing plate (312). The top of the second fixing plate (312) is fixedly connected to several sliding rods (313). The sliding plates (314) are slidably connected to the several sliding rods (313). The top of the sliding plates (314) is fixedly connected to several rubber heads (315). The sliding rods (313) are provided with elastic elements. The top of the rubber head (315) is made of rubber.

6. A mold for producing slide cylinders according to claim 5, characterized in that, The pressing assembly (32) includes a connecting plate (321) fixedly connected to the left side of the sliding plate (314), a motor (322) fixedly connected to the top inner wall of the lower mold (111), the output shaft of the motor (322) is fixedly connected to a rotating shaft (323) through a coupling, and a pressing plate (324) is fixedly connected to the outer wall of the rotating shaft (323). The lower pressure plate (324) is in contact with the connecting plate (321).

7. A mold for producing slide cylinders according to claim 6, characterized in that, The meshing element includes a gear (214) fixedly connected to the outer wall of the threaded rod (211). Among them, the gear (214) meshes with the rack (221).

8. A mold for producing slide cylinders according to claim 7, characterized in that, The elastic element includes a second spring (316) sleeved on the sliding rod (313), the top of the second spring (316) is fixedly connected to the sliding plate (314), and the bottom of the second spring (316) is fixedly connected to the second fixed plate (312). Among them, the initial state of spring 2 (316) is the natural state.

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