Die opening and closing guide rail
By setting buffer grooves in the front and rear rest sections of the mold opening and closing guide rail, the rigid impact of the mold opening and closing rollers under abnormal conditions is mitigated, thereby improving the service life of the guide rail and rollers and the stability of the mechanism.
Patent Information
- Application Number
- CN202520097818.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-16
- Publication Date
- 2026-01-06
- Estimated Expiration
- 2035-01-16
AI Technical Summary
In the prior art, the rest section of the mold opening and closing guide rail is a rigid structure, which causes rigid impact on the mold opening and closing rollers and guide rail under abnormal conditions, resulting in wear and extrusion, affecting service life and mechanism stability.
The front and rear protective sections of the mold opening and closing guide rail are provided with an outer front protective section, an outer rear protective section, an inner front protective section, and an inner rear protective section. The buffer grooves buffer the extrusion and impact of the mold opening and closing rollers, reducing rigid impact.
It improves the service life of the mold opening and closing guide rails and rollers, enhances the operational stability of the mechanism, and reduces wear and crushing.
Smart Images
Figure CN223763756U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of blow molding technology, and in particular to an opening and closing mold guide rail. Background Technology
[0002] In a blow molding machine, the mold opening and closing guide rail controls the opening and closing of the left and right molds on the mold frame via a swing arm roller, while the mold locking guide rail controls the locking and unlocking of the left and right molds on the mold frame in the closed state via a locking roller.
[0003] At the end of mold closing and bottle blowing, the opening and closing guide rail needs to control the rotation of the locking shaft for locking and unlocking. At this time, the rocker arm roller is located in the rest section of the opening and closing guide rail and is in a resting state. In the prior art, both rest sections of the opening and closing guide rail are rigid structures. When the rocker arm roller runs abnormally, entering the rest section will generate a strong rigid impact on the opening and closing guide rail, causing the rocker arm roller to be squeezed or broken, or causing wear on the cam surface of the opening and closing guide rail. Utility Model Content
[0004] The purpose of this invention is to provide a mold opening and closing guide rail that can mitigate the rigid impact caused by the abnormal entry of the mold opening and closing rollers in the front and rear rest sections, thereby improving the service life of the mold opening and closing guide rail and the mold opening and closing rollers, and enhancing the stability of the mechanism operation.
[0005] To achieve the above objectives, the technical solution adopted by this utility model is as follows:
[0006] A mold opening and closing guide rail is used to guide the movement of a mold opening and closing roller, the mold opening and closing roller being rotatably mounted on a mold opening and closing rocker arm about its own axis. The mold opening and closing guide rail includes a cam seat, an outer cam and an inner cam arranged at intervals above the cam seat, and a guide groove is provided between the outer cam and the inner cam to guide the movement of the mold opening and closing roller.
[0007] The mold opening and closing guide rail includes a front stop section, a mold opening section, a mold closing section and a rear stop section connected in sequence along the movement direction of the mold opening and closing roller; the outer cam includes an outer front protection part and an outer rear protection part located on the front stop section and the rear stop section respectively; the inner cam includes an inner front protection part and an inner rear protection part located on the front stop section and the rear stop section respectively.
[0008] The outer front protection part, outer rear protection part, inner front protection part, and inner rear protection part are respectively used to buffer the extrusion of the opening and closing mold roller.
[0009] Preferably, the outer front protection part is an outer front groove formed on the outer cam, and the outer front groove passes through the outer cam along a direction parallel to the axis of the opening and closing mold roller.
[0010] More preferably, the groove direction of the outer front groove is consistent with the curve direction of the inner surface of the outer cam at the corresponding position.
[0011] Preferably, the outer rear protection part is an outer rear groove formed on the outer cam, and the outer rear groove passes through the outer cam along a direction parallel to the axis of the opening and closing mold roller.
[0012] More preferably, the groove direction of the outer rear groove is consistent with the curve direction of the inner surface of the outer cam at the corresponding position.
[0013] Preferably, the inner front protection part is an inner front groove formed on the inner cam, and the inner front groove passes through the inner cam along a direction parallel to the axis of the opening and closing mold roller.
[0014] More preferably, the groove direction of the inner front groove is consistent with the curve direction of the outer surface of the inner cam at the corresponding position.
[0015] Preferably, the inner cam includes a cam body, a rotating split part rotatably connected at one end to the cam seat or the cam body, and a reset member for resetting the rotating split part. The rotation axis of the rotating split part is parallel to the axis of the opening and closing mold roller. The cam body and the rotating split part are arranged sequentially along the movement direction of the opening and closing mold roller. The rotating split part is the inner rear protection part.
[0016] More preferably, the rotating part has an initial position and a rotating position. When the rotating part is in the initial position, the outer surface of the rotating part and the inner surface of the outer cam have the same curve direction at the corresponding positions.
[0017] Due to the application of the above technical solution, this utility model has the following advantages compared with the prior art: The opening and closing mold guide rail of this utility model is provided with an outer front protection part and an inner front protection part in the front rest section of the opening and closing mold cam, and an outer rear protection part and an inner rear protection part in the rear rest section of the opening and closing mold cam. These can be used to buffer the rigid extrusion and impact caused by the abnormal entry of the opening and closing mold roller, reduce the extrusion and breakage of the opening and closing mold roller and the wear of the cam surface of the opening and closing mold guide rail, so as to improve the service life of the opening and closing mold guide rail and the opening and closing mold roller, and improve the stability of the mechanism operation. Attached Figure Description
[0018] Appendix Figure 1 This is a schematic diagram of the structure for installing the mold opening and closing guide rail in conjunction with the mold opening and closing frame according to a specific embodiment of this utility model;
[0019] Appendix Figure 2 For the appendix Figure 1 A schematic diagram of the structure of the opening and closing mold guide rail.
[0020] The components include: 1. Mold frame for opening and closing; 2. Mold guide rail for opening and closing; 21. Cam seat; 22. Outer cam; 221. Outer front groove; 222. Outer rear groove; 23. Inner cam; 231. Inner front groove; 232. Cam body; 233. Rotating split body; 24. Guide groove; 3. Mold roller for opening and closing; 4. Mold swing arm for opening and closing.
[0021] a. First stop section; b. Mold opening section; c. Mold closing section; d. Last stop section. Detailed Implementation
[0022] The technical solution of this utility model will be further described below with reference to specific embodiments and accompanying drawings.
[0023] In the following description, only certain exemplary embodiments are briefly described. As those skilled in the art will recognize, the described embodiments can be modified in various ways without departing from the spirit or scope of the present invention. Therefore, the drawings and description are considered to be exemplary in nature and not restrictive.
[0024] In the description of the embodiments of this utility model, it should be understood that the terms "length", "inner", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the embodiments of 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 on the embodiments of this utility model.
[0025] 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 indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of embodiments of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.
[0026] In this embodiment of the invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a communication connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this embodiment of the invention according to the specific circumstances.
[0027] In this embodiment of the invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.
[0028] The following disclosure provides many different implementations or examples for different structures of the embodiments of the present invention. To simplify the disclosure of the embodiments of the present invention, specific examples of components and arrangements are described below. Of course, these are merely examples and are not intended to limit the embodiments of the present invention. Furthermore, reference numerals and / or reference letters may be repeated in different examples of the embodiments of the present invention; such repetition is for simplification and clarity and does not in itself indicate a relationship between the various implementations and / or arrangements discussed.
[0029] See Figure 1-2 As shown, this embodiment provides an opening and closing mold guide rail for guiding the movement of the opening and closing mold roller 3. The opening and closing mold roller 3 is rotatably disposed at one end of the opening and closing mold swing arm 4 around its own axis. The opening and closing mold swing arm 4 is rotatably connected to the opening and closing mold frame 1 around its other end. The rotation axes of the two ends of the opening and closing mold swing arm 4 are parallel to each other and parallel to the vertical direction.
[0030] See Figure 2 As shown, the mold opening and closing guide rail 2 is along the movement direction of the mold opening and closing roller 3 (i.e., Figure 2 The section (arrow A in the diagram) includes a front stop section a, an opening section b, a closing section c, and a rear stop section d, connected in sequence. In the front stop section a, the mold-locking shaft rotates from the locked state to the unlocked state to facilitate the removal of the molded bottle in the subsequent opening section b and the placement of the preform in the closing section c; in the rear stop section d, the mold-locking shaft rotates from the unlocked state to the locked state to facilitate subsequent bottle blowing.
[0031] See Figure 2 As shown, the mold opening and closing guide rail 2 includes a cam seat 21 located at the bottom, and extends in the direction from the outside to the inside (i.e., Figure 2 The outer cam 22 and inner cam 23 are arranged at intervals above the cam seat 21 (in the direction of arrow B in the image). A guide groove 24 is provided between the outer cam 22 and the inner cam 23 to guide the movement of the mold opening and closing roller 3.
[0032] The outer cam 22 includes an outer front protection section and an outer rear protection section located on the front rest section a and the rear rest section d, respectively. The inner cam 23 includes an inner front protection section and an inner rear protection section located on the front rest section a and the rear rest section d, respectively. The outer front protection section, outer rear protection section, inner front protection section, and inner rear protection section are used to buffer the radial outward and inward extrusion impact of the opening and closing mold roller 3 at corresponding positions.
[0033] In this embodiment, the outer front protection part is an outer front groove 221 formed on the outer cam 22, which extends through the outer cam 22 along a direction parallel to the axis of the opening and closing mold roller 3. With this arrangement, when the opening and closing mold roller 3 is pressed outward at the front rest section a, the inner surface of the outer cam 22 at that point can generate a certain deformation toward the outer front groove 221, thereby buffering the extrusion impact of the opening and closing mold roller 3.
[0034] Among them, the groove direction of the outer front groove 221 is consistent with the curve direction of the inner surface of the outer cam 22 at the corresponding position. That is, the distance from the inner groove surface of the outer front groove 221 to the inner surface of the outer cam 22 is the same in the radial direction. Since the material of the outer cam 22 has a large rigidity, this distance can be set to be relatively short to ensure the elasticity at the corresponding position.
[0035] In this embodiment, the outer rear protection part is an outer rear groove 222 formed on the outer cam 22, which extends through the outer cam 22 along a direction parallel to the axis of the opening and closing die roller 3. With this arrangement, when the opening and closing die roller 3 is pressed outward at the rear rest section d, the inner surface of the outer cam 22 at that location can generate a certain deformation toward the outer rear groove 222, thereby buffering the extrusion impact of the opening and closing die roller 3.
[0036] Among them, the groove direction of the outer rear groove 222 is consistent with the curve direction of the inner surface of the outer cam 22 at the corresponding position. That is, the distance from the inner groove surface of the outer rear groove 222 to the inner surface of the outer cam 22 is the same in the radial direction. Since the material of the outer cam 22 has a large rigidity, this distance can be set to be relatively short to ensure the elasticity at the corresponding position.
[0037] In this embodiment, the inner front protection part is an inner front groove 231 formed on the inner cam 23, which extends through the inner cam 23 along a direction parallel to the axis of the opening and closing mold roller 3. With this arrangement, when the opening and closing mold roller 3 is pressed inward at the front rest section a, the outer surface of the inner cam 23 at that point can generate a certain deformation toward the inner front groove 231, thereby buffering the extrusion impact of the opening and closing mold roller 3.
[0038] The groove direction of the inner front groove 231 is consistent with the curve direction of the outer surface of the inner cam 23 at the corresponding position. That is, the distance from the outer groove surface of the inner front groove 231 to the outer surface of the inner cam 23 in the radial direction is the same. Since the material of the inner cam 23 has a large rigidity, this distance can be set to be relatively short to ensure the elasticity at the corresponding position.
[0039] The aforementioned inner cam 23 includes a cam body 232, a rotating split 233 rotatably connected at one end to the cam seat 21 or the cam body 232, and a reset member (not shown in the figure) for resetting the rotation of the rotating split 233. The rotation axis of the rotating split 233 is parallel to the axis of the opening and closing mold roller 3, and the reset member is a cylinder or an elastic element.
[0040] See Figure 2 As shown, the cam body 232 and the rotating split body 233 are arranged sequentially along the movement direction of the opening and closing mold roller 3. The front end of the cam body 232 is used to open the inner front groove 231. The cam body 232 is rotatably connected to the front end of the rotating split body 233 through its rear end. The rotating split body 233 as a whole constitutes the inner rear protection part.
[0041] In the later rest section d, since the opening and closing mold roller 3 has the potential to generate a large displacement inward, the rotation structure of the above-mentioned rotating split 233 is selected.
[0042] In this embodiment, the rotating split body 233 has an initial position and a rotating position. When the rotating split body 233 is in the initial position, the curve direction of the outer surface of the rotating split body 233 and the inner surface of the outer cam 22 at the corresponding positions is consistent, that is, the distance from the outer surface of the rotating split body 233 to the inner surface of the outer cam 22 along the radial direction is the same.
[0043] The above embodiments are only for illustrating the technical concept and features of this utility model, and are intended to enable those skilled in the art to understand the content of this utility model and implement it accordingly. They should not be construed as limiting the scope of protection of this utility model. All equivalent changes or modifications made in accordance with the spirit and essence of this utility model should be included within the scope of protection of this utility model.
Claims
1. An open-close die rail for guiding the movement of an open-close die roller, the open-close die roller being rotatably mounted on an open-close die rocker about an axis of the open-close die roller, characterized in that: The mold opening and closing guide rail comprises a cam seat, outer and inner cams arranged in space above the cam seat, and a guide groove arranged between the outer and inner cams for guiding the movement of the mold opening and closing roller; The mold opening and closing guide rail comprises a cam seat, outer and inner cams arranged in space above the cam seat, and a guide groove arranged between the outer and inner cams for guiding the movement of the mold opening and closing roller; The outer front protection part is an outer front groove opened on the outer cam, which penetrates the outer cam along the direction parallel to the axial line of the mold opening and closing roller.
2. The open and close mold guide rail according to claim 1, characterized by: The groove direction of the outer front groove is consistent with the curve direction of the inner surface of the outer cam at the corresponding position.
3. The open and close mold guide rail according to claim 2, wherein: The outer rear protection part is an outer rear groove opened on the outer cam, which penetrates the outer cam along the direction parallel to the axial line of the mold opening and closing roller.
4. The open and close mold guide rail according to claim 1, wherein: The groove direction of the outer rear groove is consistent with the curve direction of the inner surface of the outer cam at the corresponding position.
5. The open and close mold guide rail according to claim 4, wherein: The inner front protection part is an inner front groove opened on the inner cam, which penetrates the inner cam along the direction parallel to the axial line of the mold opening and closing roller.
6. The open and close mold guide rail according to claim 1, wherein: The groove direction of the inner front groove is consistent with the curve direction of the outer surface of the inner cam at the corresponding position.
7. The open and close mold guide rail according to claim 6, wherein: The inner cam comprises a cam body, a rotating part rotatably connected to the cam seat or the cam body, and a reset part for resetting the rotation of the rotating part, the rotating axis of the rotating part is parallel to the axial line of the mold opening and closing roller, the cam body and the rotating part are arranged in sequence along the movement direction of the mold opening and closing roller, and the rotating part is the inner rear protection part.
8. The open and close die guide rail according to claim 1, wherein: The rotating part has an initial position and a rotating position, when the rotating part is located at the initial position, the outer surface of the rotating part is consistent with the curve direction of the inner surface of the outer cam at the corresponding position.
9. The open and close mold guide rail according to claim 8, wherein: