Non-inverting heating large chain

Abstract

The utility model provides a kind of not to turn over type heating big chain, including core transmission assembly, positioning assembly and auxiliary assembly component;Core transmission assembly includes plug embryo axle, plug embryo head base, sprocket two, sprocket one, axle one and axle two, sprocket two, sprocket one are assembled on corresponding axle body respectively and present big head staggered installation;Positioning assembly includes bearing two, bearing three and guide rail, guide rail inside lower side holds outside bearing three lower part, inside upper side presses inside bearing three upper part;Auxiliary assembly component includes bearing one, spacer one, shaft sleeve, hole card, locking nut, flat washer, axle card one, spacer two, spacer three, bearing four, axle card two and compression spring, bearing one, spacer one and shaft sleeve are sequentially assembled on plug embryo axle.The utility model has the beneficial effects that three-positioning is used to solve plug embryo shaking, embryo drop problem, reduce equipment downtime, improve production efficiency, modular design reduces cost, compact structure saves space, rigid connection reduces wear and tear, prolongs life, improves equipment economy.

Description

Technical Field

[0001] This utility model mainly relates to the field of heating machine technology, specifically to a non-tilting heating chain. Background Technology

[0002] In the blow molding process, preforms need to be heated by a heating machine. The stable operation of the heating machine depends heavily on the precision and transmission stability of the large chain. As the core component for preform conveying, the large chain needs to accurately deliver the preforms to the heating station. Its performance directly affects the heating quality of the preforms and the continuity of subsequent blow molding processes.

[0003] The existing heating machine chains mostly adopt the traditional chain link connection structure. After long-term high-load operation, the chain links are prone to wear and stretching, resulting in a decrease in transmission accuracy. In addition, the rigidity of the connection between the blank insertion head and the chain is insufficient, and it is easy to shake during operation, which leads to inaccurate blank insertion and frequent blank drop, forcing the equipment to be shut down for maintenance, seriously disrupting the continuity of production and reducing the production efficiency of enterprises.

[0004] It should be noted that the above content falls within the scope of the inventor's technical knowledge. Due to the vast and complex nature of the technical content in this field, the above content of this application does not necessarily constitute prior art. Utility Model Content

[0005] 1. The technical problem to be solved by the utility model: This invention provides a non-twisting heated chain to solve the technical problems existing in the background art.

[0006] 2. Technical Solution: To achieve the above objectives, the technical solution provided by this utility model is: a non-twisting heated large chain, including a core transmission component, a positioning component, and auxiliary assembly components; The core transmission component includes a blank insertion shaft, a blank insertion head base, a second sprocket, a first sprocket, a first shaft, and a second shaft. The blank insertion shaft passes through the blank insertion head base. The first shaft and the second shaft are respectively connected to the blank insertion head base. The second sprocket and the first sprocket are respectively mounted on corresponding shafts and are installed in an alternating manner with large and small ends. The positioning assembly includes bearing two, bearing three and guide rail. Bearing two is mounted on shaft one and is distributed vertically. Bearing two moves close to the right side of the guide rail. The lower inner side of the guide rail supports the lower part of the outer bearing three and the upper inner side presses against the upper part of the inner bearing three. The auxiliary assembly components include bearing one, spacer one, bushing, hole clamp, locking nut, flat washer, shaft clamp one, spacer two, spacer three, bearing four, shaft clamp two, and compression spring. Bearing one, spacer one, and bushing are sequentially assembled on the insert shaft. The hole clamp is engaged with the end of the insert shaft. The locking nut and the flat washer connect the insert shaft to the insert head base. Shaft clamp one is embedded in shaft one. Spacer two, bearing three, spacer three, and bearing four are sequentially assembled on shaft two. Shaft clamp two is embedded in shaft two. Compression spring is sleeved on the outside of the insert shaft and located inside the insert head base.

[0007] Furthermore, there are two bearings, which are distributed at an axial distance along the shaft and are arranged symmetrically from top to bottom. Both bearings are mounted on the shaft.

[0008] Furthermore, the spacer is located between the two bearings, and the spacer and the two bearings are assembled together on the insert shaft.

[0009] Furthermore, the bushing is located outside the first spacer, and the bushing is fitted onto the insert shaft and adjacent to the first spacer.

[0010] Furthermore, the flat washer is sandwiched between the locking nut and the insert head base, and the locking nut passes through the flat washer and is connected to the insert shaft.

[0011] Furthermore, a groove is provided on the outer circumferential surface of the shaft, and the shaft clip is embedded in the groove, with the shaft clip located on the outside of the bearing.

[0012] Furthermore, a groove 2 is provided on the outer circumferential surface of the second shaft, and the second shaft clip is embedded in the groove 2, and the second shaft clip is located on the outside of the fourth bearing.

[0013] Furthermore, the compression spring is sleeved on the outer side of the middle part of the insert shaft, and the two ends of the compression spring abut against the stepped surface of the insert shaft and the inner wall of the insert head base, respectively.

[0014] Furthermore, the inner sidewall of the guide rail is respectively attached to the outer side of the second bearing and the upper and lower sides of the third bearing, and the guide rail covers a portion of the second bearing and the third bearing.

[0015] 3. Beneficial effects: Compared with the prior art, the technical solution provided by this utility model has the following advantages: This non-tilting heating chain effectively solves the problems of wobbling insert head and inaccurate inserting of traditional chains through its three-sided positioning structure (left, top, and bottom), significantly reducing the insert drop rate, decreasing the frequency of equipment downtime for maintenance, and significantly improving production continuity and heating efficiency. Modular assembly design facilitates standardized mass production, reduces manufacturing costs, compact structure saves internal space, increases the number of heating stations, rigid connection of components reduces wear, extends the service life of the main chain, and comprehensively improves the economic efficiency of equipment operation.

[0016] It should be noted that the structures not described in this utility model are the same as or can be implemented using existing technology, and will not be elaborated here, as they do not involve the design points and improvement directions of this utility model. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is an enlarged schematic diagram of a partial structure of the present invention; Figure 3 This is a schematic diagram of the overall structure of this utility model from another angle; Figure 4 This is another schematic diagram of the overall structure of this utility model.

[0018] Figure label: 1. Insert shaft; 2. Sprocket II; 3. Hole clamp; 4. Bearing I; 5. Spacer I; 6. Bushing; 7. Compression spring; 8. Insert head base; 9. Locking nut; 10. Flat washer; 11. Shaft clamp I; 12. Bearing II; 13. Shaft I; 14. Bearing III; 15. Shaft II; 16. Spacer II; 17. Spacer III; 18. Bearing IV; 19. Shaft clamp II; 20. Sprocket I; 21. Guide rail. Detailed Implementation

[0019] To facilitate understanding of this utility model, a more comprehensive description of the utility model will be given below with reference to the accompanying drawings, which show several embodiments of the utility model. However, the utility model can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided so that the disclosure of the utility model will be more thorough and complete.

[0020] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "page", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0021] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0022] In this utility model, unless otherwise explicitly specified and limited, the terms "installed," "connected," "linked," "fixed," "provided with," and "located in" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0023] See attached document Figure 1-4 A non-twisting heated chain includes a core transmission component, a positioning component, and auxiliary assembly components; The core transmission components include a blank insertion shaft 1, a blank insertion head base 8, a second sprocket 2, a first sprocket 20, a first shaft 13, and a second shaft 15. The blank insertion shaft 1 passes through the blank insertion head base 8. The first shaft 13 and the second shaft 15 are respectively connected to the blank insertion head base 8. The second sprocket 2 and the first sprocket 20 are respectively mounted on the corresponding shafts and are installed in an alternating manner with large and small ends. The positioning assembly includes bearing 2 12, bearing 3 14 and guide rail 21. Bearing 2 12 is mounted on shaft 1 13 and is distributed vertically. Bearing 2 12 moves close to the right side of guide rail 21. The lower side of the inside of guide rail 21 supports the lower part of outer bearing 3 14, and the upper side of the inside presses against the upper part of inner bearing 3 14. The auxiliary assembly components include bearing 1 (4), spacer 1 (5), bushing 6, hole clamp 3, locking nut 9, flat washer 10, shaft clamp 11, spacer 2 (16), spacer 3 (17), bearing 4 (18), shaft clamp 2 (19), and compression spring 7. Bearing 1 (4), spacer 1 (5), and bushing 6 are sequentially assembled on insert shaft 1. Hole clamp 3 is engaged with the end of insert shaft 1. Locking nut 9 and flat washer 10 connect insert shaft 1 to insert head base 8. Shaft clamp 11 is embedded on shaft 1 (13). Spacer 2 (16), bearing 3 (14), spacer 3 (17), and bearing 4 (18) are sequentially assembled on shaft 2 (15). Shaft clamp 2 (19) is embedded on shaft 2 (15). Compression spring 7 is sleeved on the outside of insert shaft 1 and located inside insert head base 8.

[0024] Bearing 4, spacer 5, and bushing 6 are sequentially inserted through one end of the insert shaft 1. The two bearings 4 are respectively fitted onto the end step of the insert shaft 1. The spacer 5 is coaxially clamped between the two bearings 4. By precisely controlling the axial length, the bearings 4 are separated to avoid frictional interference during operation. The bushing 6 is fitted onto the outermost end of the insert shaft 1. Its inner end face abuts against the outer ring of the outer bearing 4. The outer end face is limited by the hole clamp 3. The hole clamp 3 is embedded in the pre-set annular groove at the end of the insert shaft 1 to form an axial lock, ensuring that the assembly position of bearing 4, spacer 5, and bushing 6 on the insert shaft 1 is fixed.

[0025] The middle part of the insert shaft 1 passes through the axial through hole of the insert head base 8, and the two are clearance fit. The section of the insert shaft 1 located inside the insert head base 8 is fitted with a compression spring 7. One end of the compression spring 7 abuts against the middle step surface of the insert shaft 1, and the other end abuts against the inner wall step of the through hole of the insert head base 8. The preload of the compression spring 7 buffers the axial vibration of the insert shaft 1 during operation. The other end of the insert shaft 1 extending out of the insert head base 8 is connected to the locking nut 9 by a thread. The flat washer 10 is fitted on the insert shaft 1 and clamped between the locking nut 9 and the outer wall of the insert head base 8. The tightening force of the locking nut 9 rigidly fixes the insert shaft 1 and the insert head base 8, while the flat washer 10 disperses the locking force to avoid wear on the surface of the insert head base 8.

[0026] The two ends of shaft 13 are connected to the two symmetrical lugs on the right side of the insert head base 8 by interference fit and are fixed in axial position. Two bearings 12 are respectively sleeved on the upper and lower sections of shaft 13, distributed at intervals along the axial direction of shaft 13 and arranged symmetrically. The inner rings of the two bearings are interference fit with shaft 13. Each end of shaft 13 has an annular groove 1 on its outer circumferential surface. Shaft clip 11 is embedded in the groove 1 and abuts against the outer inner rings of the two bearings 12, forming a bidirectional axial limit to prevent the bearings 12 from moving along shaft 13. After assembly, the outer rings of the two bearings 12 are tightly fitted to the inner wall of the right side of guide rail 21. When the large chain runs, the bearings 12 roll along the right side wall of guide rail 21. The horizontal offset force is offset by the symmetrical double bearing structure, ensuring that the insert head base 8 does not wobble in the horizontal direction.

[0027] Shaft 2 15 is connected to the two symmetrical lugs on the left side of the insert head base 8 by interference fit at both ends, and is set parallel to shaft 1 13. From left to right, shaft 2 15 is fitted with spacer 2 16, outer bearing 3 14, spacer 3 17, inner bearing 3 14, and bearing 4 18. The left end of spacer 2 16 abuts against the left step of shaft 2 15, and the right end abuts against the inner ring of outer bearing 3 14. Spacer 3 17 is sandwiched between the inner rings of outer bearing 3 14 and inner bearing 3 14. The distance between the two bearings 3 14 is controlled by the length design. The left side of the inner ring of bearing 4 18 abuts against the inner ring of inner bearing 3 14, and the right side is connected by shaft clamp 2. 19 Limiting – A ring groove 2 is provided on the outer right side of shaft 2 15. Shaft 2 19 is embedded in groove 2 and abuts against the right side of the inner ring of bearing 4 18, thereby fixing all components on shaft 2 15 axially. After assembly, it is embedded in the left groove of guide rail 21. The horizontal wall on the lower side of the inner side of guide rail 21 supports the lower part of the outer ring of outer bearing 3 14, and the horizontal wall on the upper side of the inner side presses against the upper part of the outer ring of inner bearing 3 14, forming a bidirectional constraint in the vertical direction. Combined with the fit between bearing 2 12 and the right side wall of guide rail 21, the whole structure forms a three-sided positioning structure on the left, top, and bottom, which completely restricts the vertical movement and horizontal displacement of the insert head base 8.

[0028] Both sprocket 2 and sprocket 1 are toothed disc structures. They are connected by keys and assembled to the shaft ends of adjacent chain links. The large end of sprocket 2 faces outward of the equipment, and the large end of sprocket 1 faces inward of the equipment, forming an alternating large and small end installation method. This structure ensures that the teeth of adjacent sprockets do not overlap radially during transmission, avoids tooth collision interference, and ensures the smoothness of chain meshing transmission.

[0029] In this embodiment, when the heating machine drives the large chain to operate, sprocket 2 and sprocket 1 20 engage with the chain to drive the insert head base 8 to move along the guide rail 21; bearing 2 12 rolls along the right side wall of the guide rail 21 to provide stable support in the horizontal direction; outer bearing 3 14 rolls along the lower horizontal wall of the guide rail 21 and inner bearing 3 14 rolls along the upper horizontal wall of the guide rail 21 to form a vertical limit; compression spring 7 buffers the axial vibration of insert shaft 1, and locking nut 9 and flat washer 10 ensure the rigid connection between insert shaft 1 and insert head base 8, realizing the non-shaking conveying of insert shaft 1, and finally solving the problems of inaccurate inserting and insert falling in traditional chains.

[0030] In summary, the modular assembly logic achieves precise connection of each component: the insert shaft 1 and the insert head base 8 form a stable assembly through the sequential assembly of bearing 4, spacer 5, and bushing 6, and the axial locking of the hole clamp 3. Combined with the pre-tightening buffer of the compression spring 7 and the rigid fixation of the locking nut 9 and flat washer 10, this ensures that the insert shaft 1 is free from vibration and displacement. Shaft 13 and two symmetrical bearings 12 are limited by shaft clamp 11, achieving stable horizontal support. The orderly assembly of spacer 16, bearing 14, spacer 17, bearing 18, and shaft clamp 19 on shaft 15 forms a bidirectional constraint in the vertical direction with the guide rail 21. Combined with the fit between bearing 12 and the right side wall of the guide rail 21, a three-sided positioning structure (left, top, and bottom) is formed, completely solving the problems of vertical movement and horizontal displacement of traditional chains. The staggered installation of sprocket 2 and sprocket 20 avoids transmission interference and ensures smooth meshing.

[0031] The above-described embodiments are merely illustrative of certain implementations of this utility model, and their descriptions are relatively specific and detailed. However, they should not be construed as limiting the scope of this utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these modifications and improvements all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model patent should be determined by the appended claims.

Claims

1. A non-twisting heated chain, characterized in that: This includes core transmission components, positioning components, and auxiliary assembly parts; The core transmission component includes a blank insertion shaft (1), a blank insertion head base (8), a second sprocket (2), a first sprocket (20), a first shaft (13), and a second shaft (15). The blank insertion shaft (1) is inserted into the blank insertion head base (8). The first shaft (13) and the second shaft (15) are respectively connected to the blank insertion head base (8). The second sprocket (2) and the first sprocket (20) are respectively mounted on the corresponding shafts and are installed in an alternating manner with large and small heads. The positioning assembly includes bearing two (12), bearing three (14) and guide rail (21). Bearing two (12) is mounted on shaft one (13) and is distributed vertically. Bearing two (12) moves close to the right side of guide rail (21). The lower side of the inside of guide rail (21) supports the lower part of outer bearing three (14), and the upper side of the inside presses against the upper part of inner bearing three (14). The auxiliary assembly components include bearing one (4), spacer one (5), bushing (6), clamp (3), locking nut (9), flat washer (10), clamp one (11), spacer two (16), spacer three (17), bearing four (18), clamp two (19), and compression spring (7). The bearing one (4), spacer one (5), and bushing (6) are sequentially assembled on the insert shaft (1). The clamp (3) is engaged with the end of the insert shaft (1). The locking nut (9) The flat washer (10) is connected to the insert shaft (1) and the insert head base (8). The shaft clip one (11) is embedded on the shaft one (13). The spacer two (16), the bearing three (14), the spacer three (17), and the bearing four (18) are sequentially assembled on the shaft two (15). The shaft clip two (19) is embedded on the shaft two (15). The compression spring (7) is sleeved on the outside of the insert shaft (1) and located inside the insert head base (8).

2. The non-twisting heated chain according to claim 1, characterized in that: The number of bearings (12) is two. The two bearings (12) are distributed at intervals along the axial direction of the shaft (13) and are arranged symmetrically from top to bottom. Both bearings (12) are mounted on the shaft (13).

3. The non-twisting heated chain according to claim 1, characterized in that: The spacer (5) is located between the two bearings (4), and the spacer (5) and the two bearings (4) are assembled together on the insert shaft (1).

4. The non-twisting heated chain according to claim 1, characterized in that: The bushing (6) is located outside the spacer (5), and the bushing (6) is mounted on the insert shaft (1) and adjacent to the spacer (5).

5. A non-twisting heated chain according to claim 1, characterized in that: The flat washer (10) is sandwiched between the locking nut (9) and the insert head base (8), and the locking nut (9) passes through the flat washer (10) and is connected to the insert shaft (1).

6. A non-twisting heated chain according to claim 1, characterized in that: The outer circumferential surface of the shaft (13) is provided with a slot, and the shaft clip (11) is embedded in the slot. The shaft clip (11) is located on the outside of the bearing (12).

7. A non-twisting heated chain according to claim 1, characterized in that: The outer circumferential surface of the shaft two (15) is provided with a slot two, and the shaft slot two (19) is embedded in the slot two. The shaft slot two (19) is located on the outside of the bearing four (18).

8. A non-twisting heated chain according to claim 1, characterized in that: The compression spring (7) is sleeved on the outer side of the middle part of the insert shaft (1), and the two ends of the compression spring (7) abut against the stepped surface of the insert shaft (1) and the inner wall of the insert head base (8), respectively.

9. A non-twisting heated chain according to claim 1, characterized in that: The inner wall of the guide rail (21) is in contact with the outer side of the bearing two (12) and the upper and lower sides of the bearing three (14), respectively. The guide rail (21) covers part of the bearing two (12) and the bearing three (14).

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