A one-step forming device for double-sided toothed belt

Abstract

A double-sided tooth belt one-time forming device comprises an outer tooth die and an inner tooth die, and further comprises that the outer tooth die is of a split structure; the inner tooth die is located in a space surrounded by the outer tooth die; and the inner tooth die and the outer tooth die form a concentric structure. Through the split structure of the outer tooth die, the machining efficiency is higher, the production efficiency is greatly improved, and the split structure is more convenient and faster to maintain or replace, and the maintenance cost is lower. Rapid space positioning and direction calibration can be realized, manual repeated debugging is avoided, the overall installation and alignment time is reduced, and the die changing efficiency is improved. The whole adopts one-time forming die pressing, effectively avoids damage to the skeleton line, thereby affecting the service life and stretchability of the product, and the efficiency is higher in the production process.

Description

Technical Field

[0001] This utility model relates to the field of synchronous belt production technology, and in particular to a one-time forming device for double-sided toothed belts. Background Technology

[0002] Double-sided toothed belts are a special type of transmission belt with teeth on both the top and bottom surfaces, allowing them to mesh with two pulleys simultaneously for forward and reverse transmission. These belts are typically made of high-strength core wire and wear-resistant rubber or polymer materials, offering good flexibility and tensile strength. Double-sided toothed belts are widely used in mechanical equipment requiring synchronous transmission, such as printers, copiers, automated production lines, and some precision instruments, achieving efficient, smooth, and low-noise transmission. Depending on the tooth shape, double-sided toothed belts can be categorized into various types, such as double-sided circular arc toothed belts and double-sided trapezoidal toothed belts, to suit different operating conditions. The production and processing of double-sided toothed belts mainly includes raw material preparation, extrusion molding, mold vulcanization, tooth shape machining, surface treatment, and quality inspection. By combining high-strength reinforcing materials with rubber or polymers and then using precision molds to press or cut the belt into double-sided toothed shapes, the transmission belt achieves excellent strength, precision, and durability. Finally, it undergoes rigorous testing to meet the needs of different industrial applications.

[0003] Currently, the common method for producing double-sided toothed belts is to process the teeth on both sides by pressing a flat plate onto the back of a single-sided toothed belt. However, the backing rubber, which has already been vulcanized, needs to be ground down to the pitch line of the synchronous belt before it can be processed. During the grinding process, the core wires inside the single-sided toothed belt are easily damaged, resulting in a significant reduction in the lifespan of the finished product and affecting its elasticity. Furthermore, double-sided toothed belts processed in this way require multi-segment vulcanization, which leads to low production efficiency, high costs, and poor quality of the produced double-sided toothed belts. Utility Model Content

[0004] This application provides a double-sided toothed belt one-time forming device, which adopts the following technical solution:

[0005] A double-sided toothed belt forming device includes an outer toothed mold and an inner toothed mold, and further includes: the outer toothed mold is a split structure; the inner toothed mold is located within the space enclosed by the outer toothed mold; the inner toothed mold and the outer toothed mold form a concentric structure.

[0006] Preferably, the external gear mold includes at least two forming molds, which are located above the internal gear mold.

[0007] Preferably, the external tooth mold includes a base mold, which is located below the forming mold.

[0008] Preferably, the base mold and the forming mold are respectively provided with external tooth forming surfaces at their centripetal ends, and the base mold and the forming mold are spliced ​​together to form a complete external tooth forming surface.

[0009] Preferably, the base mold and the forming mold are respectively provided with corresponding inclined structures at the splicing joint. The inclined structures guide the forming mold and the base mold to be spliced ​​and aligned in a centripetal direction. When the forming mold and the base mold approach each other and are spliced, the inclined structures guide the forming mold to move towards the central axis along the inclined direction through mutual contact, thereby realizing automatic alignment and precise positioning of the two during the splicing process.

[0010] Preferably, the base mold is provided with a positioning hole, which is used to position and fix the base mold to the downward mechanism of the processing equipment, so that the base mold and the downward mechanism of the processing equipment can move in one direction.

[0011] Preferably, the molding die has a through hole, which is located on the side of the molding die.

[0012] Preferably, the molding die is provided with a linear motion component that passes through the through holes of the two molding dies. The linear motion component drives the molding die to move vertically. An elastic element is provided between adjacent molding dies. The elastic element is located between the contact surfaces where the two molding dies are joined. When the molding die approaches and joins the base mold, the elastic element contracts and stores elastic potential energy due to the contact of the inclined surfaces. When the molding die and the base mold are separated by a processing device for demolding, the inclined surface of the molding die gradually separates from the inclined surface of the base mold. When the external force is removed, the elastic element automatically returns to its original length by its own restoring force, causing the adjacent molding dies to separate from each other. The molding die is then separated laterally by the elastic force of the elastic element.

[0013] Preferably, the outer gear mold is provided with a positioning plate, which is located at both ends of the outer gear mold and connected to the outer gear mold. The positioning plate is provided with a plurality of limiting components. The positioning plate and the limiting components are used to perform spatial positioning and orientation calibration of the outer gear mold and to limit the rotation of the inner gear mold during the installation process, so as to prevent the inner gear mold from rotating.

[0014] Preferably, the positioning plate adopts a split structure that matches the external gear mold, and the positioning plate is connected to each of the split modules of the external gear mold.

[0015] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0016] 1. This double-sided toothed belt one-time forming device adopts a split structure for the outer toothed mold, which is composed of multiple forming molds and base molds spliced ​​together. The forming surface is equipped with elastic elements, which can achieve lateral mold separation during demolding without manual intervention, resulting in higher processing efficiency and a significant improvement in production efficiency. Furthermore, the split structure makes maintenance or replacement more convenient and faster, and the maintenance cost is lower.

[0017] 2. This double-sided toothed belt one-time forming device can achieve rapid spatial positioning and orientation calibration of the external and internal toothed molds during the overall installation process through positioning plates and limiting components, avoiding repeated manual adjustments, reducing overall installation and alignment time, and improving mold changing efficiency.

[0018] 3. This double-sided toothed belt one-time molding device adopts one-time molding, which effectively avoids damage to the skeleton line, thereby affecting the product's service life and extensibility. It is more efficient in the production process. The inclined structure can effectively fit the forming mold and the base mold during the molding process. In addition, during the molding process, the molding material can be squeezed to fill the mold cavity first. Then, the excess material can overflow from the inclined structure under the action of extrusion, which ensures the density of the product and prevents overflow from affecting the mold closing gap. Attached Figure Description

[0019] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the accompanying drawings used in the description of the embodiments or the prior art will be discussed below. Obviously, the technical solutions described in conjunction with the accompanying drawings are only some embodiments of this utility model. For those skilled in the art, other embodiments and their accompanying drawings can be obtained from the embodiments shown in these drawings without creative effort.

[0020] Figure 1 This is a schematic diagram of the structure of this utility model.

[0021] Figure 2 This is an exploded schematic diagram of this utility model.

[0022] Figure 3 This is a schematic diagram of the external tooth mold of this utility model.

[0023] Figure 4 This is a schematic diagram of the internal tooth mold of this utility model.

[0024] Figure 5 This is a schematic diagram of the basic model of this utility model.

[0025] Figure 6 This is a schematic diagram of the molding die of this utility model.

[0026] Figure 7 This is a structural schematic diagram of the external tooth mold assembly process of this utility model.

[0027] Figure 8 This is a three-part cross-sectional view of the present invention.

[0028] Figure 9 yes Figure 8 Enlarged diagram of point A in the middle.

[0029] Figure 10 This is a cross-sectional view of the four sections of this utility model.

[0030] In the figure: 1. External gear mold; 101. Base mold; 111. Positioning hole; 102. Forming mold; 103. External gear forming surface; 104. Inclined surface structure; 2. Internal gear mold; 3. Positioning plate; 4. Linear motion component; 5. Through hole; 6. Elastic component; 7. Limiting component. Detailed Implementation

[0031] The technical solutions of various embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0032] In the description of this utility model, it should be noted that the terms "upper," "lower," "inner," "outer," "front end," "rear end," "both ends," "one end," and "the other end," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0033] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," and "connected," etc., should be interpreted broadly. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0034] An embodiment of this utility model provides a double-sided toothed belt one-time forming device.

[0035] Example 1: As Figure 1-4 and Figure 8As shown, a double-sided toothed belt one-time forming device includes an outer toothed mold 1 and an inner toothed mold 2, and further includes: the outer toothed mold 1 is a split structure; the inner toothed mold 2 is located within the space enclosed by the outer toothed mold 1; the inner toothed mold 2 and the outer toothed mold 1 form a concentric structure. The outer toothed mold 1 includes two forming molds 102, which are located above the inner toothed mold 2. The outer toothed mold 1 includes a base mold 101, which is located below the forming molds 102. The base mold 101 and the forming mold 102 are respectively provided with outer tooth forming surfaces 103 at their centripetal ends, and the base mold 101 and the forming mold 102 are spliced ​​together to form a complete outer tooth forming surface 103.

[0036] like Figure 2 , Figure 5-7 and Figure 9 As shown, the base mold 101 and the forming mold 102 are respectively provided with corresponding inclined structures 104 at the splicing joint. The inclined structures 104 guide the forming mold 102 and the base mold 101 to be spliced ​​and aligned in a centripetal direction. When the forming mold 102 and the base mold 101 approach each other and are spliced, the inclined structures 104 guide the forming mold 102 to move towards the central axis along the inclined direction through mutual contact, thereby realizing automatic alignment and precise positioning of the two during the splicing process.

[0037] like Figure 5 and Figure 7 As shown, the base mold 101 is provided with a positioning hole 111, which is used to position and fix the base mold 101 to the downward mechanism of the processing equipment, so that the base mold 101 and the downward mechanism of the processing equipment can move in one direction.

[0038] like Figure 6-7 As shown, the molding die 102 has a through hole 5, which is located on the side of the molding die 102. The molding die 102 is provided with a linear motion component 4, which passes through the through holes 5 of the two molding dies 102. The linear motion component 4 drives the molding die 102 to move vertically. An elastic element 6 is provided between adjacent molding dies 102. The elastic element 6 is located between the contact surfaces of the two molding dies 102. When the molding die 102 approaches and is spliced ​​with the base die 101, the elastic element 6 contracts and stores elastic potential energy due to the contact of the inclined structure 104. When the molding die 102 and the base die 101 are separated by the processing device for demolding, the inclined structure 104 of the molding die 102 gradually separates from the inclined structure 104 of the base die 101. When the external force is removed, the elastic element 6 automatically returns to its original length by its own restoring force, so that the adjacent molding dies 102 are separated from each other, and the molding die 102 is separated laterally by the elastic force of the elastic element 6.

[0039] like Figure 1-2As shown, the outer gear mold 1 is provided with a positioning plate 3, which is located at both ends of the outer gear mold 1 and connected to the outer gear mold 1. The positioning plate 3 is provided with several limiting members 7. The positioning plate 3 and the limiting members 7 are used to spatially position and calibrate the outer gear mold 1 and to limit the rotation of the inner gear mold 2 during installation, preventing the inner gear mold 2 from rotating. The positioning plate 3 adopts a split structure that matches the outer gear mold 1, and the positioning plate 3 is connected to each of the split modules of the outer gear mold 1 accordingly.

[0040] Example 2: A double-sided toothed belt one-time forming device, comprising an outer toothed mold 1 and an inner toothed mold 2, further comprising: the outer toothed mold 1 is a split structure; the inner toothed mold 2 is located within the space enclosed by the outer toothed mold 1; the inner toothed mold 2 and the outer toothed mold 1 form a concentric structure. Figure 10 As shown, the external gear mold 1 includes three forming molds 102, which are located above the internal gear mold 2. The external gear mold 1 includes a base mold 101, which is located below the forming molds 102. The base mold 101 and the forming molds 102 are respectively provided with external gear forming surfaces 103 at their centripetal ends. The base mold 101 and the forming molds 102 are spliced ​​together to form a complete external gear forming surface 103.

[0041] The base mold 101 and the forming mold 102 located at both ends are respectively provided with corresponding inclined structures 104 at the splicing joint. The inclined structures 104 guide the forming mold 102 and the base mold 101 to be spliced ​​and aligned in a centripetal manner. When the forming mold 102 and the base mold 101 approach each other and are spliced, the inclined structures 104 guide the forming mold 102 to move towards the central axis along the inclined direction through mutual contact, thereby realizing automatic alignment and precise positioning of the two during the splicing process.

[0042] The base mold 101 is provided with a positioning hole 111, which is used to position and fix the base mold 101 to the downward mechanism of the processing equipment, so that the base mold 101 and the downward mechanism of the processing equipment can move in one direction.

[0043] The forming mold 102 has a through hole 5 on its side. A linear motion component 4 passes through the through holes 5 of two forming molds 102, driving the forming mold 102 to move vertically. An elastic element 6 is provided between adjacent forming molds 102, located between the contact surfaces where the two forming molds 102 interlock. When the forming mold 102 approaches and interlocks with the base mold 101, the elastic element 6 contracts and stores elasticity due to the contact of the inclined surface structure 104. When the molding mold 102 and the base mold 101 are separated by the processing device for demolding, the inclined structure 104 of the molding mold 102 gradually separates from the inclined structure 104 of the base mold 101. When the external force is removed, the elastic element 6 automatically returns to its original length by relying on its own restoring force, so that the adjacent molding molds 102 separate from each other. The molding molds 102 located at both ends separate towards both ends, while the molding mold 102 located in the middle remains in its original position. The molding mold 102 is laterally separated by the elastic force of the elastic element 6.

[0044] The outer gear mold 1 is provided with positioning plates 3, which are located at both ends of the outer gear mold 1 and connected to it. The positioning plates 3 are provided with several limiting components 7. The positioning plates 3 and the limiting components 7 are used for spatial positioning and orientation calibration of the outer gear mold 1 during installation, and for limiting the rotation of the inner gear mold 2 to prevent rotation. The positioning plates 3 adopt a split structure that matches the outer gear mold 1, and the positioning plates 3 are correspondingly connected to the various modules of the outer gear mold 1.

[0045] In use of this invention: During processing, firstly, a protective film for processing is wrapped around the internal gear mold 2. Next, the core wire is wound around the internal gear mold 2. Then, the processing material is wrapped around the internal gear mold 2. Then, another layer of protective film is placed over the internal gear mold 2, covering the core wire and processing material. Subsequently, the internal gear mold 2 is placed on the base mold 101. The base mold 101 is positioned and connected to the processing equipment through the positioning hole 111. The linear motion component 4 is connected to the processing equipment and moves vertically. During processing, the processing equipment drives the linear motion component 4 to move downwards. Component 4 drives the forming mold 102 to move, and the base mold 101 moves upward with the downward mechanism of the processing equipment. When the base mold 101 contacts the forming mold 102, the inclined structure 104 on the base mold 101 contacts the inclined structure 104 on the forming mold 102. The forming mold 102 moves closer to the axis along the inclined structure on the base mold 101 through its own inclined structure 104. At this time, the two adjacent forming molds 102 move closer to each other, causing the elastic element 6 to contract. After the forming mold 102 and the base mold 101 are spliced ​​and completely spliced, the processed material... The material is extruded between the outer toothed mold 1 and the inner toothed mold 2. During the extrusion process, excess material is extruded outward from the inclined structure 104. After processing, the base mold 101 moves downward with the downward mechanism of the processing equipment for demolding. At the same time, the linear motion component 4 moves upward through the processing equipment, driving the forming mold 102 upward. At this time, the forming mold 102 gradually separates from the inclined structure 104 of the base mold 101. The elastic element 6 between adjacent forming molds 102 gradually and automatically returns to its original length due to its own restoring force. Lateral parting is achieved through the elastic force of the elastic element 6. After the finished product is demolded by the base mold 101 and the forming mold 102, the inner tooth mold 2, which is wrapped by the finished product, is separated from the outer tooth mold 1 by an external hydraulic device. Then, the finished product is wrapped and clamped by a clamping and wrapping device. Subsequently, the inner tooth mold 2 is pushed out by the pushing device on the hydraulic device, so that the inner tooth mold 2 is separated from the finished product. The finished product is detached from the inner tooth mold 2 to complete the processing. The detached finished product is cylindrical and can be cut by a cutting machine according to different required pitches. The produced finished product is suitable for simultaneous forward and reverse transmission.

[0046] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered exemplary and not restrictive in all respects. The scope of this invention is defined by the appended claims, not by the foregoing description, and is therefore intended to encompass all variations falling within the meaning and scope of equivalents of the claims. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0047] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A double-sided toothed belt one-time forming device, comprising an outer toothed mold (1) and an inner toothed mold (2). characterized in that Also includes: The external tooth mold (1) is a split structure; The inner tooth mold (2) is located within the space enclosed by the outer tooth mold (1); The inner tooth mold (2) and the outer tooth mold (1) form a concentric structure.

2. A one-step device for forming a double-sided toothed belt according to claim 1, characterized in that: The external gear mold (1) includes at least two forming molds (102), which are located above the internal gear mold (2).

3. A one-step device for forming a double-sided toothed belt according to claim 2, characterized in that: The external tooth mold (1) includes a base mold (101), which is located below the forming mold (102).

4. A one-step device for forming a double-sided toothed belt according to claim 3, characterized in that: The base mold (101) and the forming mold (102) are respectively provided with external tooth forming surfaces (103) at their centripetal ends. The base mold (101) and the forming mold (102) are spliced ​​together to form a complete external tooth forming surface (103).

5. A one-step device for forming a double-sided toothed belt according to claim 3, characterized in that: The base mold (101) and the forming mold (102) are respectively provided with corresponding inclined structures (104) at the splicing joint, and the inclined structures (104) guide the forming mold (102) and the base mold (101) to be spliced ​​and aligned in a centripetal manner.

6. A one-step device for forming a double-sided toothed belt according to claim 3, characterized in that: The base mold (101) has a positioning hole (111).

7. A one-step device for forming a double-sided toothed belt according to claim 2, characterized in that: The molding die (102) has a through hole (5) on its side.

8. A one-step device for forming a double-sided toothed belt according to claim 7, characterized in that: The molding die (102) is provided with a linear motion component (4), which passes through the through hole (5) of the two molding dies (102). An elastic element (6) is provided between adjacent molding dies (102), and the elastic element (6) is located between the contact surfaces of the two molding dies (102) splicing together.

9. A one-step device for forming a double-sided toothed belt according to claim 1, characterized in that: The external gear mold (1) is provided with a positioning plate (3), which is located at both ends of the external gear mold (1). The positioning plate (3) is connected to the external gear mold (1), and the positioning plate (3) is provided with several limiting parts (7).

10. A one-step device for forming a double-sided toothed belt according to claim 9, characterized in that: The positioning plate (3) adopts a split structure that matches the external tooth mold (1), and the positioning plate (3) is connected to each module of the external tooth mold (1) in a split manner.

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