Low-noise high-strength escalator roller mold structure
By introducing telescopic components and a reference ring into the mold, the problem of coaxiality between the aluminum core and the positioning column was solved, enabling efficient production of aluminum core wheels.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- JIANGYIN PUFITE ELEVATOR PARTS CO LTD
- Filing Date
- 2025-06-23
- Publication Date
- 2026-07-14
AI Technical Summary
In existing aluminum core wheel molds, it is difficult to keep the aluminum core and the positioning pin coaxial, resulting in low production efficiency.
The design employs a telescopic assembly and a reference ring to ensure that the side of the aluminum core fits against the reference surface and that the axis of the aluminum core is coaxial with that of the positioning column. The precise placement of the aluminum core is achieved through the coordination of a guide sleeve, a drive rod, an adjusting rod, and a spring.
This improves the accuracy and efficiency of aluminum core placement, reduces jamming, and increases the production efficiency of aluminum core wheels.
Smart Images
Figure CN224487635U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of mold technology, and more specifically, it relates to a low-noise, high-strength escalator roller mold structure. Background Technology
[0002] Aluminum core rollers are a type of low-noise, high-strength escalator rollers that play a crucial role in modern urban rail transit and commercial facilities such as escalators and moving walkways. As an important piece of equipment connecting different floors and facilitating the flow of people, the smoothness, quietness, and safety of escalators directly affect the user experience and the overall operational quality of the facility. As one of the key components of escalators, the performance of escalator rollers has a decisive impact on the overall performance of the escalator.
[0003] Existing aluminum core wheels are injection molded by placing an aluminum core into a mold. In order to ensure the quality of injection molding and prevent the injection material from entering the mounting hole in the middle of the aluminum core, the fit clearance between the positioning post of the mold and the mounting hole of the aluminum core is very small. During the process of placing the aluminum core, it is difficult to ensure that the aluminum core and the positioning post remain coaxial. The aluminum core is easy to get stuck on the positioning post and cannot be accurately placed, which greatly reduces the production efficiency of aluminum core wheels. Utility Model Content
[0004] The purpose of this invention is to overcome the defects in the existing technology and provide a low-noise, high-strength escalator roller mold structure that ensures the aluminum core and the positioning post remain coaxial during the placement of the aluminum core by providing a compatible reference surface for the aluminum core.
[0005] To achieve the above objectives, the present invention provides a low-noise, high-strength escalator roller mold structure, comprising: a moving mold and a fixed mold, wherein the moving mold and the fixed mold are slidably guided together; the fixed mold is provided with a first cavity and a first positioning post located inside the first cavity; the fixed mold is provided with an installation groove communicating with the first cavity; a telescopic component is installed in the installation groove; a reference ring is installed at one end of the telescopic component near the moving mold; a reference surface is provided on the side of the reference ring near the moving mold; the reference surface is perpendicular to the axis of the first positioning post; and the side of the aluminum core cooperates with the reference surface to improve the placement accuracy of the aluminum core.
[0006] By using the low-noise, high-strength escalator roller mold structure described in this utility model, and by setting a telescopic component and a reference ring, when placing the aluminum core, the side of the aluminum core fits against the reference surface of the reference ring. This ensures that when the first positioning post is inserted into the mounting hole of the aluminum core, the axis of the aluminum core and the axis of the first positioning post are on the same straight line, improving the accuracy of aluminum core placement. The aluminum core will not get stuck on the first positioning post, thus greatly improving the placement efficiency of the aluminum core and consequently greatly improving the production efficiency of the aluminum core wheel.
[0007] Preferably, the telescopic assembly includes a guide sleeve, a drive rod, an adjusting rod, and a spring arranged coaxially. The guide sleeve is fixedly installed in the mounting groove. The guide sleeve is provided with a guide structure that slides and guides the drive rod and the adjusting rod. The drive rod and the adjusting rod both pass through the guide sleeve.
[0008] The telescopic assembly includes a first state and a second state. In the first state, the spring pushes the drive rod to abut against the adjusting rod, and the distance between the reference ring and the mounting groove is at its maximum value. In the second state, the spring pushes the drive rod to abut against the guide sleeve, and the distance between the reference ring and the mounting groove is between its maximum and minimum values. This design, through the cyclical transition between the first and second states, ensures that the aluminum core remains within the first cavity in the second state, and that the reference ring resets after the transition from the second to the first state, facilitating the placement of the next set of aluminum cores.
[0009] Preferably, the guide structure includes a slide groove and a limiting groove. The limiting groove is located at the end of the guide sleeve away from the reference ring. The limiting groove has a first guide surface that connects to the first sidewall of the slide groove. A slider that slides into the slide groove is provided on the outer side of the drive rod. An adjusting block that slides into the slide groove is provided on the adjusting rod. A ring of serrations is provided on the side of the drive rod near the adjusting rod. The adjusting block has a pointed tip that fits against one side of the serrations. This design allows the telescopic assembly to transition from a first state to a second state through the cooperation of the slider and adjusting block with the slide groove and limiting groove.
[0010] Preferably, the guiding structure further includes a guide groove communicating with the slide groove. The guide groove has a second guide surface, which connects to the limiting sidewall of the limiting groove, and the second guide surface also connects to the second sidewall of the slide groove. This design allows the telescopic assembly to return from a second state to a first state through the cooperation of the slider and adjusting block with the slide groove and guide groove.
[0011] Preferably, an annular groove for accommodating the reference ring is provided between the mounting groove and the first cavity, and both the first cavity and the mounting groove are in communication with the annular groove. This design improves the applicability of the low-noise, high-strength escalator roller mold structure, facilitating the production of aluminum core wheels of different specifications.
[0012] Preferably, the mounting groove includes a fixed groove communicating with the annular groove and a telescopic groove communicating with the fixed groove. The guide sleeve is fixedly installed in the fixed groove, and the telescopic groove is slidably engaged with the adjusting rod. The radial dimension of the telescopic groove is smaller than the radial dimension of the fixed groove, and the fixed end of the spring is fixedly connected to the groove wall of the fixed groove. This design helps to ensure that the adjusting rod and the guide sleeve are always coaxial, thereby ensuring the stable operation of the telescopic assembly.
[0013] Preferably, the first positioning post has a chamfer. This design facilitates the insertion of the first positioning post into the mounting hole of the aluminum core, thereby improving the installation efficiency of the aluminum core.
[0014] Preferably, both the first cavity and the first positioning post are provided in at least two sets. This design helps to improve the production efficiency of the aluminum core wheel.
[0015] Preferably, each group of first cavities is connected to at least two mounting slots, and each mounting slot is provided with a telescopic component. The telescopic components in the mounting slots connected to the same group of first cavities are detachably connected to the reference ring. This design improves the stability of the reference ring, ensuring that the reference surface remains perpendicular to the axis of the first positioning post during the movement of the reference ring.
[0016] Preferably, the drive rod has a insertion hole on the side near the reference ring, and the reference ring has a post that inserts into the insertion hole, the outer ring of which is made of rubber. This design facilitates the replacement and maintenance of the reference ring, reducing maintenance costs.
[0017] The beneficial effects of this utility model are as follows:
[0018] By using the low-noise, high-strength escalator roller mold structure described in this utility model, and by setting a telescopic component and a reference ring, when placing the aluminum core, the side of the aluminum core fits against the reference surface of the reference ring. This ensures that when the first positioning post is inserted into the mounting hole of the aluminum core, the axis of the aluminum core and the axis of the first positioning post are on the same straight line, improving the accuracy of aluminum core placement. The aluminum core will not get stuck on the first positioning post, thus greatly improving the placement efficiency of the aluminum core and consequently greatly improving the production efficiency of the aluminum core wheel. Attached Figure Description
[0019] Figure 1 This is a schematic diagram of the overall structure of the low-noise, high-strength escalator roller mold;
[0020] Figure 2 This is a schematic diagram of the three-dimensional structure of the moving mold;
[0021] Figure 3 This is a schematic diagram of the three-dimensional structure of the fixed mold;
[0022] Figure 4 This is a schematic diagram of the three-dimensional structure of the reference ring;
[0023] Figure 5 This is a schematic diagram of the three-dimensional structure of the aluminum core;
[0024] Figure 6 This is a schematic diagram of the three-dimensional structure of the guide sleeve;
[0025] Figure 7 This is a three-dimensional structural diagram of the drive rod;
[0026] Figure 8 This is a three-dimensional structural diagram of the adjusting rod;
[0027] Figure 9 This is a front sectional view of the mold fixing and telescopic components in the first state;
[0028] Figure 10 yes Figure 9 Enlarged view of the structure at point A in the middle;
[0029] Figure 11 This is a three-dimensional structural diagram of the telescopic component in its first state;
[0030] Figure 12 This is a front sectional view of the fixed mold and telescopic assembly when the aluminum core is inserted and just reaches the maximum depth of the first cavity.
[0031] Figure 13 yes Figure 12 Enlarged view of the structure at point B;
[0032] Figure 14 This is a three-dimensional structural diagram of the telescopic component when the aluminum core is inserted and the aluminum core has just reached the maximum depth of the first cavity.
[0033] Figure 15 This is a front sectional view of the fixed mold and telescopic components in the second state;
[0034] Figure 16 yes Figure 15 Enlarged view of the structure at point C;
[0035] Figure 17 This is a three-dimensional structural diagram of the telescopic component in the second state;
[0036] Figure 18 This is a three-dimensional structural diagram of the telescopic component when the mold is closed and the aluminum core has just reached the maximum depth of the first cavity.
[0037] Figure 19 yes Figure 18 Enlarged view of the structure at point D;
[0038] Figure 20 This is a three-dimensional structural diagram of the telescopic component when the mold is closed and the aluminum core has just reached the maximum depth of the first cavity.
[0039] Figure 21 This is a schematic diagram of the front sectional view of the fixed mold.
[0040] In the diagram: 100, moving mold; 110, second cavity; 120, second positioning post; 130, guide post; 140, second runner;
[0041] 200, Fixed mold; 210, First cavity; 220, First positioning pin; 230, Mounting groove; 231, Fixing groove; 232, Expansion groove; 240, Guide hole; 250, First runner; 260, Main runner; 270, Annular groove;
[0042] 300. Telescopic assembly; 310. Guide sleeve; 311. Slide groove; 3111. First sidewall; 3112. Second sidewall; 312. Limiting groove; 3121. First guide surface; 3122. Limiting sidewall; 313. Guide groove; 3131. Second guide surface; 320. Drive rod; 321. Slider; 322. Serration; 323. Insertion hole; 330. Adjusting rod; 331. Adjusting block; 3311. Tip; 340. Spring;
[0043] 400, reference ring; 410, reference surface; 420, insert post;
[0044] 500, Aluminum core; 510, Side surface; 520, Mounting hole. Detailed Implementation
[0045] The subject matter described herein will now be discussed with reference to exemplary embodiments. It should be understood that these embodiments are discussed to enable those skilled in the art to better understand and implement the subject matter described herein. Changes may be made to the function and arrangement of the elements discussed without departing from the scope of this specification. Various processes or components may be omitted, substituted, or added as needed in the examples. Furthermore, features described in some examples may be combined in other examples.
[0046] To better understand this utility model, the following is in conjunction with... Figures 1-21 This invention provides a detailed description of a low-noise, high-strength escalator roller mold structure.
[0047] Example 1:
[0048] like Figures 1-5As shown, a low-noise, high-strength escalator roller mold structure includes: a moving mold 100 and a fixed mold 200. The moving mold 100 and the fixed mold 200 are slidably guided together. The fixed mold 200 is provided with a first cavity 210 and a first positioning post 220 located inside the first cavity 210. The fixed mold 200 is provided with an installation groove 230 communicating with the first cavity 210. A telescopic component 300 is installed in the installation groove 230. A reference ring 400 is installed at one end of the telescopic component 300 near the moving mold 100. A reference surface 410 is provided on the side of the reference ring 400 near the moving mold 100. The reference surface 410 is perpendicular to the axis of the first positioning post 220. The side surface 510 of the aluminum core 500 cooperates with the reference surface 410 to improve the placement accuracy of the aluminum core 500.
[0049] During the placement of the aluminum core 500, the side 510 of the aluminum core 500 remains in contact with the reference surface 410, the telescopic component 300 is compressed, and after the aluminum core 500 is placed, the telescopic component 300 remains compressed. After the moving mold 100 and the fixed mold 200 complete one mold closing and mold opening, the telescopic component 300 is reset.
[0050] It should be noted that both the side surface 510 and the cross-section of the aluminum core 500 are annular. The side surface 510 of the aluminum core 500 is perpendicular to its axis. When placing the aluminum core 500, the side surface 510 is made to fit against the reference surface 410. Since the reference surface 410 is perpendicular to the axis of the first positioning shaft, the side surface 510 of the aluminum core 500 is also perpendicular to the axis of the first positioning shaft. Therefore, the axis of the aluminum core 500 is parallel to the axis of the first positioning post 220. When the first positioning post 220 is inserted into the mounting hole 520 of the aluminum core 500, the axis of the aluminum core 500 and the axis of the first positioning post 220 are on the same straight line, thus ensuring the accuracy of the placement of the aluminum core 500. The aluminum core 500 will not get stuck on the first positioning post 220, thereby greatly improving the placement efficiency of the aluminum core 500 and thus greatly improving the production efficiency of the aluminum core wheel.
[0051] During the placement of the aluminum core 500, the side 510 of the aluminum core 500 is in contact with the reference surface 410 of the reference ring 400. As the aluminum core 500 gradually enters the first cavity 210, the aluminum core 500 pushes the reference ring 400 to move away from the moving mold 100, and the telescopic component 300 is compressed. After the aluminum core 500 is placed, the telescopic component 300 remains compressed, and a part of the aluminum core 500 is located in the first cavity 210.
[0052] The moving mold 100 is provided with a second cavity 110 and a second positioning post 120 located inside the second cavity 110. The second cavity 110 corresponds to the position of the first cavity 210. The second positioning post 120 is coaxially arranged with the first positioning post 220. After the moving mold 100 and the fixed mold 200 are closed, the second positioning post 120 passes into the mounting hole 520 of the aluminum core 500 and the second positioning post 120 fits against the first positioning post 220. The first cavity 210 and the second cavity 110 are combined to form a molding cavity. The inner wall of the molding cavity seals the mounting hole 520 of the aluminum core 500. During the injection molding process, the injection molding material will not enter the mounting hole 520. The part of the molding cavity not occupied by the aluminum core 500 is filled by the injection molding material to form a tire. The tire and the aluminum core 500 are combined to form an aluminum core wheel.
[0053] After injection molding is completed and cooled, the moving mold 100 and the fixed mold 200 separate. During this process, the telescopic component 300 extends until it returns to its initial length. The telescopic component 300 and the reference ring 400 are reset and the aluminum core wheel is pushed out of the first cavity 210. The aluminum core wheel is sleeved on the second positioning post 120, and a part of the aluminum core wheel is located in the second cavity 110. After the operator manually removes the aluminum core wheel, the next set of aluminum core wheels can be manufactured.
[0054] In this embodiment, the fixed mold 200 is provided with four guide holes 240, and the moving mold 100 is fixedly installed with four guide pillars 130. The four guide pillars 130 and the four guide holes 240 slide and guide each other, thereby ensuring the accuracy of the mold closing between the moving mold 100 and the fixed mold 200. The parting surface of the fixed mold 200 is provided with a first sub-channel 250 that communicates with the first cavity 210, and the fixed mold 200 is provided with a main channel 260 that communicates with the first sub-channel 250. The parting surface of the moving mold 100 is provided with a second sub-channel 140 that communicates with the second cavity 110. The second sub-channel 140 and the first sub-channel 250 are combined to form a sub-channel that communicates with the molding cavity. During the injection molding process, the injection molding material is injected into the molding cavity through the main channel 260 and the sub-channel in sequence.
[0055] By using the low-noise, high-strength escalator roller mold structure of this utility model, and by setting the telescopic component 300 and the reference ring 400, when placing the aluminum core 500, the side 510 of the aluminum core 500 fits against the reference surface 410 of the reference ring 400. This ensures that when the first positioning post 220 is inserted into the mounting hole 520 of the aluminum core 500, the axis of the aluminum core 500 and the axis of the first positioning post 220 are on the same straight line. This improves the accuracy of the placement of the aluminum core 500, and the aluminum core 500 will not get stuck on the first positioning post 220. This greatly improves the placement efficiency of the aluminum core 500, and thus greatly improves the production efficiency of the aluminum core wheel.
[0056] Example 2:
[0057] As an optimization of Example 1, such as Figures 6-20 As shown, the telescopic assembly 300 includes a guide sleeve 310, a drive rod 320, an adjusting rod 330, and a spring 340 arranged coaxially. The guide sleeve 310 is fixedly installed in the mounting groove 230. The guide sleeve 310 is provided with a guide structure that slides and guides the drive rod 320 and the adjusting rod 330. The drive rod 320 and the adjusting rod 330 both pass through the guide sleeve 310.
[0058] The telescopic assembly 300 includes a first state and a second state. In the first state, the spring 340 pushes the drive rod 320 to abut against the adjusting rod 330, and the distance between the reference ring 400 and the mounting groove 230 is at its maximum value. In the second state, the spring 340 pushes the drive rod 320 to abut against the guide sleeve 310, and the distance between the reference ring 400 and the mounting groove 230 is between its maximum and minimum values.
[0059] It should be noted that in the mold-open state, the telescopic component 300 is in the first state. As the aluminum core 500 is gradually inserted into the first cavity 210, the aluminum core 500 pushes the reference ring 400 to move closer to the mounting groove 230. The distance between the reference ring 400 and the mounting groove 230 gradually decreases. The reference ring 400 pushes the drive rod 320 and the adjusting rod 330 to move synchronously, and the spring 340 is compressed. When the aluminum core 500 is inserted to the maximum depth of the first cavity 210, the distance between the reference ring 400 and the mounting groove 230 is at its minimum value, and the telescopic component 300 is in the transition state from the first state to the second state.
[0060] After the aluminum core 500 is released, the telescopic assembly 300 transitions to the second state. During this process, the spring 340 extends a certain length, pushing the adjusting rod 330 and the drive rod 320 to move synchronously, thereby pushing the reference ring 400 and the aluminum core 500 to move a certain distance away from the mounting groove 230. In the second state, a part of the aluminum core 500 is located in the first cavity 210 and will not fall out of the first cavity 210.
[0061] When the moving mold 100 and the fixed mold 200 are closed, the moving mold 100 pushes the aluminum core 500 into the maximum depth of the first cavity 210 again. At this time, the telescopic component 300 is in the transition state from the second state to the first state. When the moving mold 100 and the fixed mold 200 are separated, the telescopic component 300 returns to the first state, the spring 340 and the reference ring 400 are reset, and the injection-molded aluminum core wheel is pushed out of the first cavity 210.
[0062] The telescopic assembly 300 cycles through a first state and a second state to ensure that the aluminum core 500 can be maintained within the first cavity 210 in the second state. After the second state is converted to the first state, the reference ring 400 can be reset to facilitate the placement of the next set of aluminum cores 500.
[0063] Example 3:
[0064] As an optimization of Example 2, such as Figures 6-17 As shown, the guide structure includes a slide groove 311 and a limiting groove 312. The limiting groove 312 is located at the end of the guide sleeve 310 away from the reference ring 400. The limiting groove 312 has a first guide surface 3121, which is connected to the first side wall 3111 of the slide groove 311. A slider 321 that slides with the slide groove 311 is provided on the outside of the drive rod 320. An adjusting block 331 that slides with the slide groove 311 is provided on the adjusting rod 330. A ring of serrations 322 is provided on the side of the drive rod 320 near the adjusting rod 330. The adjusting block 331 has a tip 3311 that fits against the single-sided inclined surface of the serrations 322.
[0065] It should be noted that both the slide groove 311 and the limiting groove 312 penetrate the inner and outer walls of the guide sleeve 310. The slide groove 311 has a long strip structure, and the limiting groove 312 has a triangular structure. The single-sided inclined surface of the saw tooth 322 fits with the inclined surface of the tip 3311. The first guide surface 3121 and the single-sided inclined surface of the saw tooth 322 cooperate to form a common plane. In the first state, the slider 321 and the adjusting block 331 are both located in the slide groove 311.
[0066] During the insertion of the aluminum core 500, the drive rod 320 pushes the tip 3311 of the adjusting block 331 through the saw teeth 322. The drive rod 320 and the adjusting rod 330 move synchronously with the aluminum core 500 and the reference ring 400. When the aluminum core 500 just reaches the maximum depth of the first cavity 210, the single-sided inclined surface of the saw teeth 322 is on the same plane as the first guide surface 3121, and the adjusting block 331 just disengages from the slide groove 311, with the tip 3311 of the adjusting block 331 located on the single-sided inclined surface of the saw teeth 322. In the middle, the drive rod 320 remains stationary. Under the push of the spring 340, the adjusting rod 330 moves towards the reference ring 400. The tip 3311 slides relative to the single-sided inclined surface of the sawtooth 322, and the adjusting rod 330 rotates around its own axis. The tip 3311 contacts the first guide surface 3121 and enters the limiting groove 312 until the tip 3311 moves to the root of the sawtooth 322. At this time, the telescopic assembly 300 is in the transition state from the first state to the second state.
[0067] After the aluminum core 500 is released, the spring 340 continues to push the adjusting rod 330 towards the reference ring 400 until the tip 3311 enters the maximum depth of the limiting groove 312. At this time, the telescopic component 300 is in the second state, and the inclined surface of the tip 3311 is in contact with the single-sided inclined surface of the next sawtooth 322. Through the cooperation of the slider 321 and the adjusting block 331 with the sliding groove 311 and the limiting groove 312, the telescopic component 300 can transition from the first state to the second state.
[0068] In this embodiment, each guide sleeve 310 is provided with four sliding grooves 311 and four limiting grooves 312 arranged in a circumferential array around its own axis.
[0069] Example 4:
[0070] As an optimization of Example 3, such as Figure 6 , Figure 9 , Figure 10 , Figure 11 , Figure 18 , Figure 19 and Figure 20 As shown, the guide structure also includes a guide groove 313 that communicates with the slide groove 311. The guide groove 313 has a second guide surface 3131. The second guide surface 3131 is connected to the limiting side wall 3122 of the limiting groove 312, and the second guide surface 3131 is connected to the second side wall 3112 of the slide groove 311.
[0071] It should be noted that the first sidewall 3111 and the second sidewall 3112 are two oppositely arranged sidewalls of the slide groove 311. The second guide surface 3131 and the single-sided inclined surface of the sawtooth 322 cooperate to form a common plane. When the moving mold 100 and the fixed mold 200 are closed, the moving mold 100 pushes the aluminum core 500 to move, so that the aluminum core 500 reaches the maximum depth of the first cavity 210 again. During this process, the drive rod 320 pushes the tip 3311 of the adjusting block 331 through the sawtooth 322. When the aluminum core 500 just reaches the maximum depth of the first cavity 210, the single-sided inclined surface of the sawtooth 322 and the second guide surface 3131 are in the same plane. In the plane, the adjusting block 331 is just disengaged from the limiting groove 312, and the tip 3311 of the adjusting block 331 is located in the middle of the single-sided inclined surface of the saw tooth 322. The drive rod 320 remains stationary. Under the push of the spring 340, the adjusting rod 330 moves towards the reference ring 400. The tip 3311 slides relative to the single-sided inclined surface of the saw tooth 322, and the adjusting rod 330 rotates around its own axis. The tip 3311 contacts the second guide surface 3131 and enters the guide groove 313 until the tip 3311 moves to the root of the saw tooth 322. At this time, the telescopic assembly 300 is in the transition state from the second state to the first state.
[0072] After injection molding is completed and cooled, during the mold separation process between the moving mold 100 and the fixed mold 200, the spring 340 continues to push the adjusting rod 330 towards the reference ring 400 until the tip 3311 enters the next slide groove 311 from the guide groove 313. The drive rod 320 and the reference ring 400 are then reset. Although the adjusting rod 330 rotates around its own axis, its overall state is the same as in the first state. At this time, the telescopic component 300 is in the first state, and the inclined surface of the tip 3311 is in contact with the single-sided inclined surface of the next serration 322. Through the cooperation of the slider 321 and the adjusting block 331 with the slide groove 311 and the guide groove 313, the telescopic component 300 can return from the second state to the first state. The principle of the telescopic component 300 is the same as the principle of the spring-loaded structure of a ballpoint pen.
[0073] In this embodiment, each guide sleeve 310 is provided with four guide grooves 313 arranged in a circumferential array around its own axis.
[0074] Example 5:
[0075] As an optimization of Example 4, such as Figure 3 and Figure 10 As shown, an annular groove 270 for accommodating the reference ring 400 is provided between the mounting groove 230 and the first cavity 210, and both the first cavity 210 and the mounting groove 230 are connected to the annular groove 270.
[0076] It should be noted that when the moving mold 100 and the fixed mold 200 are closed, the reference ring 400 can be fully or partially accommodated in the annular groove 270, depending on the actual production requirements of the aluminum core wheel. This design helps to improve the applicability of the low-noise, high-strength escalator roller mold structure, so as to facilitate the production of aluminum core wheels of different specifications.
[0077] Example 6:
[0078] As an optimization of Example 5, such as Figure 21 As shown, the mounting groove 230 includes a fixed groove 231 communicating with the annular groove 270 and a telescopic groove 232 communicating with the fixed groove 231. The guide sleeve 310 is fixedly installed in the fixed groove 231. The telescopic groove 232 is slidably engaged with the adjusting rod 330. The radial dimension of the telescopic groove 232 is smaller than the radial dimension of the fixed groove 231. The fixed end of the spring 340 is fixedly connected to the groove wall of the fixed groove 231.
[0079] It should be noted that by setting the telescopic groove 232, space can be provided for the movement of the adjusting rod 330, and it can be ensured that when the adjusting block 331 of the adjusting rod 330 is disengaged from the slide groove 311, the adjusting rod 330 is still coaxial with the guide sleeve 310 and the drive rod 320, so that the adjusting rod can re-enter the guide sleeve 310, thereby ensuring the stable operation of the telescopic assembly 300.
[0080] Example 7:
[0081] As an optimization of embodiment 6, the first positioning post 220 is provided with a chamfer.
[0082] It should be noted that the chamfer is set on the outside of the first positioning post 220 (the side of the first positioning post 220 away from the mounting groove 230). By setting the chamfer, during the placement of the aluminum core 500, the first positioning post 220 can be more easily inserted into the mounting hole 520 of the aluminum core 500 under the guidance of the chamfer, thereby improving the installation efficiency of the aluminum core 500 and thus improving the production efficiency of the aluminum core wheel.
[0083] Example 8:
[0084] As an optimization of Example 7, such as Figures 1-3 As shown, the first cavity 210 and the first positioning post 220 are each provided with at least two sets.
[0085] It should be noted that both the first cavity 210 and the first positioning post 220 are provided with N (N≥2) groups, which can put N aluminum cores 500 into the N groups of the first cavity 210 respectively, thereby completing the manufacturing of N aluminum core wheels at one time and improving the production efficiency of aluminum core wheels.
[0086] In this embodiment, two sets of the first cavity 210, the first positioning post 220, the second cavity 110, and the second positioning post 120 are provided.
[0087] Example 9:
[0088] As an optimization of Example 8, such as Figure 3 As shown, each group of first cavities 210 is connected to at least two mounting slots 230, and each mounting slot 230 is provided with a telescopic component 300. The telescopic components 300 in the mounting slots 230 connected to the same group of first cavities 210 are detachably connected to the reference ring 400.
[0089] It should be noted that each group of first cavities 210 is connected to M (M≥2) mounting slots 230, and the M mounting slots 230 are arranged in a circumferential array around the axis of the first positioning post 220. Each mounting slot 230 is provided with a telescopic component 300. Thus, a group of first cavities 210 corresponds to M telescopic components 300 arranged in a circumferential array, and the telescopic ends of the M telescopic components 300 are detachably connected to the reference ring 400 in the group of first cavities 210. The stability of the reference ring 400 can be improved by the M telescopic components 300, thereby ensuring that the reference surface 410 is always perpendicular to the axis of the first positioning post 220 during the movement of the reference ring 400.
[0090] In this embodiment, each group of first cavities 210 is connected to three mounting slots 230, and the reference ring 400 in the group of first cavities 210 is detachably connected to three telescopic components 300.
[0091] Example 10:
[0092] As an optimization of Example 9, such as Figure 7 and Figure 10 As shown, the drive rod 320 is provided with a plug hole 323 on the side near the reference ring 400, and the reference ring 400 is provided with a plug post 420 that is plugged into the plug hole 323. The outer ring of the plug post 420 is made of rubber.
[0093] It should be noted that by setting the reference ring 400 and the drive rod 320 to be connected through the pin 420 and the insertion hole 323, it is beneficial to replace and maintain the reference ring 400, reducing maintenance costs. Furthermore, by setting the outer ring of the pin 420 to be made of rubber, the rubber layer can play a locking role after the pin 420 is inserted into the insertion hole 323, which helps to improve the connection strength between the pin 420 and the insertion hole 323.
[0094] The embodiments of the utility model have been described above with reference to the accompanying drawings. However, the embodiments are not limited to the specific implementation methods described above. The specific implementation methods described above are merely illustrative and not restrictive. Those skilled in the art can make many other forms under the guidance of the embodiments without departing from the spirit of the embodiments and the scope of protection of the claims, and all of these forms are within the protection scope of the embodiments.
Claims
1. A low-noise, high-strength escalator roller mold structure, comprising: The moving mold (100) and the fixed mold (200) are slidably guided together. The fixed mold (200) is provided with a first cavity (210) and a first positioning post (220) located inside the first cavity (210). The fixed mold (200) is characterized in that it is provided with a mounting groove (230) communicating with the first cavity (210). A telescopic component (300) is installed in the mounting groove (230). A reference ring (400) is installed at one end of the telescopic component (300) near the moving mold (100). A reference surface (410) is provided on the side of the reference ring (400) near the moving mold (100). The reference surface (410) is perpendicular to the axis of the first positioning post (220). The side surface (510) of the aluminum core (500) cooperates with the reference surface (410) to improve the placement accuracy of the aluminum core (500).
2. The low-noise, high-strength escalator roller mold structure according to claim 1, characterized in that, The telescopic assembly (300) includes a guide sleeve (310), a drive rod (320), an adjusting rod (330), and a spring (340) arranged coaxially. The guide sleeve (310) is fixedly installed in the mounting groove (230). The guide sleeve (310) is provided with a guide structure that slides and guides the drive rod (320) and the adjusting rod (330). The drive rod (320) and the adjusting rod (330) both pass through the guide sleeve (310). The telescopic assembly (300) includes a first state and a second state. In the first state, the spring (340) pushes the drive rod (320) to abut against the adjusting rod (330), and the distance between the reference ring (400) and the mounting groove (230) is at its maximum value. In the second state, the spring (340) pushes the drive rod (320) to abut against the guide sleeve (310), and the distance between the reference ring (400) and the mounting groove (230) is between its maximum and minimum values.
3. The low-noise, high-strength escalator roller mold structure according to claim 2, characterized in that, The guide structure includes a slide groove (311) and a limiting groove (312). The limiting groove (312) is located at the end of the guide sleeve (310) away from the reference ring (400). The limiting groove (312) has a first guide surface (3121). The first guide surface (3121) is connected to the first sidewall (3111) of the slide groove (311). A slider (321) is provided on the outside of the drive rod (320) to slide in cooperation with the slide groove (311). An adjusting block (331) is provided on the adjusting rod (330) to slide in cooperation with the slide groove (311). A ring of serrations (322) is provided on the side of the drive rod (320) near the adjusting rod (330). The adjusting block (331) is provided with a tip (3311) that fits against the single-sided inclined surface of the serrations (322).
4. The low-noise, high-strength escalator roller mold structure according to claim 3, characterized in that, The guide structure further includes a guide groove (313) communicating with the slide groove (311). The guide groove (313) has a second guide surface (3131). The second guide surface (3131) is connected to the limiting sidewall (3122) of the limiting groove (312), and the second guide surface (3131) is connected to the second sidewall (3112) of the slide groove (311).
5. The low-noise, high-strength escalator roller mold structure according to claim 2, characterized in that, An annular groove (270) for accommodating the reference ring (400) is provided between the mounting groove (230) and the first cavity (210), and both the first cavity (210) and the mounting groove (230) are in communication with the annular groove (270).
6. The low-noise, high-strength escalator roller mold structure according to claim 5, characterized in that, The mounting groove (230) includes a fixed groove (231) communicating with the annular groove (270) and a telescopic groove (232) communicating with the fixed groove (231). The guide sleeve (310) is fixedly installed in the fixed groove (231). The telescopic groove (232) is slidably engaged with the adjusting rod (330). The radial dimension of the telescopic groove (232) is smaller than the radial dimension of the fixed groove (231). The fixed end of the spring (340) is fixedly connected to the groove wall of the fixed groove (231).
7. The low-noise, high-strength escalator roller mold structure according to claim 1, characterized in that, The first positioning post (220) is chamfered.
8. The low-noise, high-strength escalator roller mold structure according to claim 2, characterized in that, The first cavity (210) and the first positioning post (220) are each provided with at least two sets.
9. The low-noise, high-strength escalator roller mold structure according to claim 8, characterized in that, Each of the first cavities (210) in the same group is connected to at least two of the mounting slots (230), and each mounting slot (230) is provided with a telescopic component (300). The telescopic components (300) in the mounting slots (230) connected to the same group of first cavities (210) are detachably connected to the reference ring (400).
10. The low-noise, high-strength escalator roller mold structure according to claim 9, characterized in that, The drive rod (320) has a plug hole (323) on the side near the reference ring (400), and the reference ring (400) has a plug (420) that plugs into the plug hole (323). The outer ring of the plug (420) is made of rubber.