Toothed belt pulley production mold

Abstract

The present application discloses a manufacturing mold for a toothed belt pulley, which belongs to the field of transmission parts. It includes: a fixed mold frame; a movable mold frame; a fixed mold core, which is arranged on the fixed mold frame; a movable mold core, which is arranged on the movable mold frame; a movable mold foot, which is arranged on the movable mold frame; a pouring device; a material ejecting device; the material ejecting device includes a plurality of ejector pins for ejecting the mold; a gate is provided through the fixed mold frame; the pouring device includes a gate sleeve and a guide column, and the guide column is located in the gate; the movable mold core includes a first convex ring and a second convex ring, and the second convex ring is provided with a flow channel connected to the gate, a positioning groove for the first convex ring to be inserted is provided on the fixed mold core, and a circular groove for the second convex ring to be inserted is also provided on the fixed mold core, the flow channel is connected to the circular groove, there is a gap between the first convex ring and the circular groove, and a toothed groove is provided on the circumferential wall of the circular groove. The beneficial effect of the present application is to provide a manufacturing mold for a toothed belt pulley that improves manufacturing efficiency.

Description

Technical Field

[0001] The present application relates to the field of transmission parts, and in particular to a manufacturing mold for a toothed belt pulley. Background Art

[0002] Traditional belt pulleys are mostly made of cast iron or cast aluminum. The production method is as follows: the mold is used for production, the mold is made of integral inserts for the tooth shape, and the tooth shape on the mold core is made by slow wire cutting. After the tooth shape processing is completed, the integral cooling water is made on the mold core to prevent the tooth size from fluctuating due to temperature fluctuations during the die-casting production process. Therefore, it is necessary to design a constant temperature cooling water channel and use fine processing to ensure the tooth shape. The fine processing time is long and the material is relatively wasteful. Utility Model Content

[0003] The content of this application is used to introduce concepts in a brief form, which will be described in detail in the detailed implementation section below. The content of this application is not intended to identify the key features or essential features of the technical solution claimed for protection, nor is it intended to limit the scope of the technical solution claimed for protection.

[0004] In order to solve the technical problems mentioned in the above background technology section, some embodiments of the present application provide a manufacturing mold for a toothed belt pulley, including:

[0005] Fixed mold frame;

[0006] The movable mold frame moves relative to the fixed mold frame;

[0007] A fixed mold core is arranged on the fixed mold frame;

[0008] A movable mold core is arranged on the movable mold frame;

[0009] The movable mold foot is arranged on the movable mold frame;

[0010] Pouring device;

[0011] Ejection device;

[0012] The ejector device includes a plurality of ejector rods for ejecting the mold;

[0013] A gate is provided through the fixed mold frame;

[0014] The pouring device includes a pouring sleeve arranged on the pouring gate, and a guide column fixedly arranged on the movable mold core, wherein the guide column is located in the pouring gate;

[0015] The movable mold core includes a first convex ring and a second convex ring fixed on the first convex ring, the second convex ring is provided with a runner connected with the gate, a positioning groove for the first convex ring to be inserted into is provided on the fixed mold core, and a circular groove for the second convex ring to be inserted into is also provided on the fixed mold core, the runner is connected with the circular groove, there is a gap between the first convex ring and the circular groove, and a toothed groove is provided on the circumferential wall of the circular groove; the fixed mold core is provided with a plurality of cooling channels for installing cooling water.

[0016] The present application uses a mold to process the tooth shape in place, and then produces the tooth shape in place through die-casting, thereby reducing the processing of the tooth shape, and because the mold ensures the size and shape of the tooth shape, the stability is high.

[0017] Furthermore, the guide column is arranged as a conical column.

[0018] Furthermore, the ejecting device further comprises:

[0019] Push plate, slidably arranged on the movable mold foot;

[0020] A reset rod, fixed on the push plate;

[0021] The push rod is fixed on the push plate.

[0022] Furthermore, a plurality of first through holes for inserting part of the ejector rods are formed on the second convex ring, and the first through holes are located in the flow channel.

[0023] Furthermore, a plurality of first overflow grooves are formed on the second convex ring, and second through holes for inserting part of the ejector rods are formed in the first overflow grooves.

[0024] Furthermore, a plurality of second overflow grooves are provided on the fixed mold core, the second overflow grooves are connected to the circular grooves, and a third through hole for inserting part of the ejector rod is provided in the second overflow grooves.

[0025] Furthermore, the manufacturing mold of the toothed belt pulley also includes:

[0026] There are two exhaust components, which are symmetrically arranged at both ends of the fixed mold core;

[0027] The exhaust assembly comprises a first exhaust block and a second exhaust block, the first exhaust block is fixedly arranged on the movable mold frame, the second exhaust block is fixedly arranged on the fixed mold frame, the first exhaust block and the second exhaust block are combined to form an exhaust channel, a first exhaust groove is provided on the first exhaust block, a second exhaust groove connected to the first exhaust groove is provided on the fixed mold core, one end of the first exhaust pipe is connected to the second overflow groove, and a plurality of fifth through holes for inserting some ejector pins are provided on the first exhaust groove.

[0028] Furthermore, a plurality of blocking grooves are provided on the first exhaust groove.

[0029] Furthermore, the manufacturing mold of the toothed belt pulley also includes:

[0030] Guide pins, fixed on the movable mold foot;

[0031] The fixed mold frame and the movable mold frame are provided with through slots for the guide pillars to pass through.

[0032] Furthermore, the manufacturing mold of the toothed belt pulley also includes:

[0033] There are several cushion blocks, which are respectively connected to the movable mold frame, the fixed mold frame and the movable mold foot through screws; and a socket for inserting a forklift's plug rod is provided on the cushion blocks.

[0034] The beneficial effects of the present application are: changing the traditional method of manufacturing the pulley, adopting die-casting to manufacture the tooth shape of the pulley; using the mold to make the insert at the tooth shape position, the insert is met by wire cutting, and the entire insert is made of cooling water. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] The drawings constituting a part of this application are used to provide a further understanding of this application, so that other features, purposes and advantages of this application become more obvious. The illustrative embodiment drawings and their descriptions of this application are used to explain this application and do not constitute an improper limitation on this application.

[0036] In addition, throughout the drawings, the same or similar reference numerals represent the same or similar elements. It should be understood that the drawings are schematic and that the components and elements are not necessarily drawn to scale.

[0037] In the attached picture:

[0038] Figure 1 is an overall schematic diagram according to an embodiment of the present application;

[0039] Figure 2 is an exploded view of an embodiment;

[0040] Figure 3 It is a structural schematic diagram of a part of the embodiment, mainly showing a fixed mold core and a movable mold core;

[0041] Figure 4 yes Figure 3 A magnified view of part A;

[0042] Figure 5 yes Figure 3 A magnified view of part B;

[0043] Figure 6 It is a structural schematic diagram of a part of the embodiment, mainly showing the movable mold core;

[0044] Figure 7 It is a structural schematic diagram of a part of the embodiment, mainly showing the fixed mold core;

[0045] Figure 8 It is a structural schematic diagram of a part of the embodiment, mainly showing the cooling channel.

[0046] Reference numerals:

[0047] 1. Fixed mold frame; 2. Fixed mold core; 3. Moving mold frame; 4. Moving mold foot; 5. Guide column; 6. Moving mold core; 7. Cushion block; 8. Socket; 9. Gate sleeve; 10. Guide column; 11. First convex ring; 12. Second convex ring; 13. Main flow channel; 14. Branch flow channel; 15. Positioning groove; 16. Circular groove; 17. Toothed groove; 18. Push plate; 19. Push rod; 20. Reset rod; 21. Groove; 22. First through hole; 23. First overflow groove; 24. Second through hole; 25. Second overflow groove; 26. Third through hole; 27. Fourth through hole; 28. First exhaust block; 29. ​​Second exhaust block; 30. First exhaust groove; 31. Second exhaust groove; 32. Blocking groove; 33. Fifth through hole; 34. Cooling channel. DETAILED DESCRIPTION

[0048] Embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. Although certain embodiments of the present disclosure are shown in the accompanying drawings, it should be understood that the present disclosure can be implemented in various forms and should not be construed as being limited to the embodiments set forth herein. On the contrary, these embodiments are provided to provide a more thorough and complete understanding of the present disclosure. It should be understood that the drawings and embodiments of the present disclosure are only for exemplary purposes and are not intended to limit the scope of protection of the present disclosure.

[0049] It should also be noted that, for ease of description, only the parts related to the invention are shown in the drawings. In the absence of conflict, the embodiments and features in the embodiments of the present disclosure can be combined with each other.

[0050] It should be noted that the concepts such as "first" and "second" mentioned in the present disclosure are only used to distinguish different devices, modules or units, and are not used to limit the order or interdependence of the functions performed by these devices, modules or units.

[0051] It should be noted that the modifications of "one" and "plurality" mentioned in the present disclosure are illustrative rather than restrictive, and those skilled in the art should understand that unless otherwise clearly indicated in the context, it should be understood as "one or more".

[0052] The present disclosure will be described in detail below with reference to the accompanying drawings and in conjunction with embodiments.

[0053] Reference Figure 1-8, a toothed belt pulley manufacturing mold comprises a fixed mold frame 1, a fixed mold core 2, a movable mold frame 3, a movable mold foot 4, a guide column 5, a movable mold core 6, an exhaust assembly, a cushion block 7, a pouring device, and a ejecting device; the movable mold frame 3 moves relative to the fixed mold frame, the fixed mold core 2 is fixedly arranged in the fixed mold frame 1, the movable mold foot 4 is fixedly arranged on the movable mold frame 3, the movable mold core 6 is fixedly arranged in the movable mold frame 3, the guide column 5 is fixedly arranged on the movable mold foot 4, and the fixed mold frame 1 and the movable mold frame 3 are provided with through grooves for the guide column 5 to pass through; there are a plurality of cushion blocks 7, and they are respectively connected to the movable mold frame 3, the fixed mold frame 1 and the movable mold foot 4 by screws, and a socket 8 is provided on the cushion block 7. When the mold needs to be transported, the insertion rod of the forklift can be inserted into the socket 8 for transportation, so as to facilitate the movement of the mold position. The tooth shape is processed in place on the mold and manufactured in place through die casting, which reduces the processing of the tooth shape, and because the mold guarantees the size and shape of the tooth shape, it has high stability.

[0054] The fixed mold core 2 is provided with a plurality of cooling channels 34 for installing cooling water.

[0055] The pouring device includes a sprue sleeve 9 and a guide column 10; a sprue is penetrated on the fixed mold frame 1, the sprue sleeve 9 is fixed on the sprue, the guide column 10 is fixed on the movable mold core 6, and the guide column 10 is located in the sprue.

[0056] The guide column 10 is a conical column.

[0057] The movable mold core 6 includes a first convex ring 11 and a second convex ring 12, and the diameter of the first convex ring 11 is larger than the diameter of the second convex ring 12. The second convex ring 12 is fixedly arranged on the first convex ring 11 and on the side close to the fixed mold core 2. A flow channel is provided on the second convex ring 12, and the flow channel is connected with the gate; the flow channel is divided into a main flow channel 13 and a plurality of branch flow channels 14 connected with the main flow channel 13. A positioning groove 15 and a circular groove 16 are provided on the fixed mold core 2, and the branch flow channel 14 is connected with the circular groove 16. The notch diameter of the positioning groove 15 is larger than the notch diameter of the circular groove 16, and the notch diameter of the positioning groove 15 is consistent with the diameter of the first convex ring 11. When the fixed mold core 2 abuts against the movable mold core 6, the first convex ring 11 is inserted into the positioning groove 15. The diameter of the groove 16 is larger than the diameter of the second convex ring 12; when the second convex ring 12 is inserted into the groove 16, there is a gap between the second convex ring 12 and the groove 16, and the gap is used to prepare the pulley, and a tooth groove 17 is opened on the circumferential wall of the groove 16 for making the tooth shape of the pulley.

[0058] The ejection device includes a push plate 18, a push rod 19, and a reset rod 20; the push plate 18 is slidably arranged on the movable mold foot 4 and can slide relative to the movable mold foot 4, there are several push rods 19 and they are fixed on the push plate 18, and the reset rod 20 is fixed on the push plate 18.

[0059] The second convex ring 12 is provided with a plurality of grooves 21 , the grooves 21 are located in the main channel 13 , and the grooves 21 are provided with first through holes 22 for inserting part of the ejector rods 19 .

[0060] A plurality of first overflow grooves 23 are formed on the second convex ring 12 , and second through holes 24 for part of the ejector rods 19 to be inserted into are formed in the first overflow grooves 23 .

[0061] A plurality of second overflow grooves 25 are formed on the fixed mold core 2 . The second overflow grooves 25 are connected to the circular grooves 16 . A third through hole 26 for inserting a part of the ejector rod 19 is formed in the second overflow grooves 25 .

[0062] A plurality of fourth through holes 27 for inserting some of the ejector rods 19 are formed in the main flow channel 13 and the branch flow channel 14 .

[0063] There are two exhaust assemblies symmetrically arranged at both ends of the fixed mold core 2. The exhaust assemblies are divided into two upper and lower first exhaust blocks 28 and second exhaust blocks 29; the first exhaust block 28 is fixedly arranged on the movable mold frame 3, and the second exhaust block 29 is fixedly arranged on the fixed mold frame 1. The first exhaust block 28 and the second exhaust block 29 are combined to form an exhaust channel. A first exhaust groove 30 is provided on the first exhaust block 28, and a second exhaust groove 31 is provided on the fixed mold core 2. One end of the second exhaust groove 31 is connected to the first exhaust groove 30, and the other end is connected to each second overflow groove 25.

[0064] A plurality of blocking grooves 32 are formed on the first exhaust groove 30 to slow down the flow rate of the injection liquid and prevent it from flowing out of the first exhaust groove 30 to the outside.

[0065] The first exhaust groove 30 is provided with a plurality of fifth through holes 33 for partially inserting the ejector pins 19 .

[0066] The above descriptions are only some preferred embodiments of the present disclosure and an explanation of the technical principles used. Those skilled in the art should understand that the scope of the invention involved in the embodiments of the present disclosure is not limited to the technical solutions formed by a specific combination of the above-mentioned technical features, but should also cover other technical solutions formed by any combination of the above-mentioned technical features or their equivalent features without departing from the above-mentioned inventive concept. For example, the above-mentioned features are replaced with the technical features with similar functions disclosed in the embodiments of the present disclosure (but not limited to) and the technical solutions formed.

Claims

1. A manufacturing mold for a toothed belt pulley, comprising: Fixed mold frame; A movable mold frame moves relative to the fixed mold frame; A fixed mold core, arranged on the fixed mold frame; A movable mold core is arranged on the movable mold frame; A movable mold foot is arranged on the movable mold frame; Pouring device; Ejection device; Features: The ejecting device includes a plurality of ejector rods for ejecting the mold; The fixed mold frame is provided with a gate; The pouring device comprises a sprue sleeve arranged on the sprue, and a guide column fixedly arranged on the movable mold core, wherein the guide column is located in the sprue; The movable mold core includes a first convex ring and a second convex ring fixed on the first convex ring, the second convex ring is provided with a runner connected to the gate, the fixed mold core is provided with a positioning groove for the first convex ring to be inserted into, and the fixed mold core is also provided with a circular groove for the second convex ring to be inserted into, the runner is connected to the circular groove, there is a gap between the first convex ring and the circular groove, and a toothed groove is provided on the circumferential wall of the circular groove; the fixed mold core is provided with a plurality of cooling channels for installing cooling water.

2. The manufacturing mold for the toothed belt pulley according to claim 1, characterized in that: The guide column is a conical column.

3. The manufacturing mold for the toothed belt pulley according to claim 1, characterized in that: The ejecting device further comprises: A push plate, slidably disposed on the movable mold foot; A reset rod, fixed on the push plate; The push rod is fixed on the push plate.

4. The manufacturing mold for the toothed belt pulley according to claim 1, characterized in that: The second convex ring is provided with a plurality of first through holes for inserting part of the ejector rods, and the first through holes are located in the flow channel.

5. The manufacturing mold for the toothed belt pulley according to claim 1, characterized in that: A plurality of first overflow grooves are formed on the second convex ring, and second through holes for inserting part of the ejector rods are formed in the first overflow grooves.

6. The manufacturing mold for the toothed belt pulley according to claim 1, characterized in that: A plurality of second overflow grooves are provided on the fixed mold core, the second overflow grooves are connected to the circular groove, and a third through hole for inserting part of the ejector rod is provided in the second overflow groove.

7. The manufacturing mold for the toothed belt pulley according to claim 1, characterized in that: The manufacturing mold of the toothed belt pulley also includes: There are two exhaust assemblies, which are symmetrically arranged at both ends of the fixed mold core; The exhaust assembly comprises a first exhaust block and a second exhaust block, the first exhaust block is fixedly arranged on the movable mold frame, the second exhaust block is fixedly arranged on the fixed mold frame, the first exhaust block and the second exhaust block are combined to form an exhaust channel, the first exhaust block is provided with a first exhaust groove, the fixed mold core is provided with a second exhaust groove connected with the first exhaust groove, one end of the second exhaust groove is connected with the second overflow groove, and the first exhaust groove is provided with a plurality of fifth through holes for inserting some of the ejector pins.

8. The manufacturing mold for the toothed belt pulley according to claim 7, characterized in that: A plurality of blocking grooves are formed on the first exhaust groove.

9. The manufacturing mold for the toothed belt pulley according to claim 1, characterized in that: The manufacturing mold of the toothed belt pulley also includes: A guide pin, fixedly arranged on the movable mold foot; The fixed mold frame and the movable mold frame are provided with through slots for the guide pillars to pass through.

10. The manufacturing mold for the toothed belt pulley according to claim 1, characterized in that: The manufacturing mold of the toothed belt pulley also includes: There are several cushion blocks, which are respectively connected to the movable mold frame, the fixed mold frame and the movable mold foot by screws; and the cushion blocks are provided with insertion holes for the insertion rods of forklifts.

Images