Locking and unlocking guide rail

Abstract

The invention discloses an opening and closing lock guide rail. An opening and closing mold frame comprises a fixed mold frame, a movable mold frame and a first rotating shaft; the unlocking and locking guide rail comprises a main guide rail, an auxiliary guide rail and a connecting base, the auxiliary guide rail can be rotationally arranged on the connecting base around a first axis penetrating through the inlet end of the auxiliary guide rail, the auxiliary guide rail, the connecting base and the main guide rail are sequentially arranged in the direction parallel to the first axis, and the first axis is parallel to the axial direction of the main guide rail; one end of the swing arm is used for being connected with the first rotating shaft, the inner roller and the outer roller are arranged on the swing arm, the swing arm and the auxiliary guide rail are arranged in a staggered mode, the inner roller is used for abutting against the inner side of the main guide rail through the outer periphery of the inner roller, and the outer roller is used for abutting against the outer side of the auxiliary guide rail through the outer periphery of the outer roller. The unlocking and locking guide rail further comprises a limiting mechanism used for limiting the rotation movement of the auxiliary guide rail around the first axis. According to the unlocking and locking guide rail, the moving track of the inner roller on the locking section can be precisely limited, so that the problem that the inner roller collides with the guide rail is avoided.

Description

Technical Field

[0001] The invention relates to the technical field of bottle blowing, and in particular to an opening and closing locking guide rail. Background Art

[0002] The bottle blowing machine needs to go through the process of unlocking, opening the mold, taking the bottle, delivering the blank, closing the mold, and locking. In the locking stage, the existing bottle blowing machine only relies on the spring force of the torsion spring to drive the opening and closing roller to fit the outer opening and closing guide rail to control the running track of the locking stage. When the torsion spring returns to a delayed position due to abnormal reasons, the opening and closing roller will hit the opening and closing guide rail. Summary of the invention

[0003] The purpose of the present invention is to provide an opening and closing locking guide rail, which can accurately limit the running trajectory of the inner roller in the locking section through a flexibly connected auxiliary guide rail cooperating with an outer roller, thereby avoiding the problem of the inner roller hitting the guide rail.

[0004] In order to achieve the above object, the technical solution adopted by the present invention is:

[0005] An opening and closing locking guide rail is used to limit the movement of the opening and closing mold frame in the locking section, the opening and closing mold frame includes a fixed mold frame and a movable mold frame, and a first rotating shaft arranged in the opening end of the fixed mold frame to rotate around its own axis direction; the opening and closing locking guide rail includes an arc-shaped main rail and an auxiliary rail arranged on the main rail;

[0006] The opening and closing lock guide rail further comprises a connecting seat connected to the main guide rail, the auxiliary guide rail is rotatably arranged on the connecting seat around a first axis passing through the entrance end thereof, the auxiliary guide rail, the connecting seat and the main guide rail are arranged in sequence along a direction parallel to the first axis, and the first axis is parallel to the axial direction of the main guide rail;

[0007] The opening and closing lock guide rail also includes a swing arm with one end connected to the first rotating shaft, an inner roller and an outer roller arranged on the swing arm so as to be rotatable around the axis of the swing arm, the swing arm and the auxiliary guide rail are arranged alternately, the inner roller is used to abut against the inner side surface of the main guide rail through its outer peripheral portion, and the outer roller is used to abut against the outer side surface of the auxiliary guide rail through its outer peripheral portion;

[0008] The opening and closing locking guide rail also includes a limiting mechanism, which is used to limit the rotational movement of the auxiliary guide rail around the first axis.

[0009] Preferably, the swing arm includes a lower arm, a connecting arm and an upper arm connected in sequence, the upper arm and the lower arm are arranged at intervals in a direction parallel to the first axis, and among the lower arm and the upper arm: one is used to connect the inner roller, and the other is used to connect the outer roller.

[0010] More preferably, one of the lower arm and the upper arm is used to connect the first rotating shaft, and the inner roller is disposed between the first rotating shaft and the outer roller.

[0011] Preferably, the axis lines of the inner roller and the outer roller are parallel to each other and parallel to the first axis line.

[0012] Preferably, the limiting mechanism includes a tension spring with one end connected to the outlet end of the auxiliary guide rail and a limiting member arranged on the auxiliary guide rail or the connecting seat, the other end of the tension spring is connected to the main rail or the connecting seat, and the limiting member is used to limit the rotational movement of the auxiliary guide rail around the first axis line away from the first rotating axis.

[0013] More preferably, the limiting member is a limiting shaft protruding downwardly from the outlet end of the auxiliary guide rail, and the tension spring is used to provide an elastic restoring force that drives the limiting shaft to press against the inner peripheral portion of the connecting seat.

[0014] More preferably, the inner peripheral portion of the connecting seat is provided with a limiting groove for being clamped by the limiting shaft.

[0015] More preferably, a mounting shaft is provided on the connecting seat, and two ends of the tension spring are respectively connected to the mounting shaft and the limiting shaft.

[0016] Preferably, a first hole is provided on the connecting seat, a second hole is provided on the auxiliary guide rail, the axis lines of the first hole and the second hole are both the first axis line, and the opening and closing locking guide rail also includes a second rotating shaft passing through the first hole and the second hole.

[0017] Preferably, a guide side surface is provided on the outer side of the inlet end of the auxiliary guide rail, and the guide side surface gradually convexes outwards along the sliding direction of the outer roller.

[0018] Due to the application of the above-mentioned technical scheme, the present invention has the following advantages compared with the prior art: the opening and closing guide rails of the present invention are flexibly connected to the auxiliary guide rails on the main guide rails, and in the locking section, the outer rollers abutting against the outer side of the auxiliary guide rails accurately limit the movement trajectory of the inner rollers abutting against the inner side of the main guide rails, thereby avoiding the problem of the opening and closing locking rollers hitting the guide rails. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Attached Figure 1 It is a schematic diagram of the structure of the connection between the opening and closing locking guide rail and the opening and closing mold frame according to a specific embodiment of the present invention;

[0020] Attached Figure 2 It is a schematic diagram of the top view of the structure of the connection between the opening and closing locking guide rail and the opening and closing mold frame according to a specific embodiment of the present invention;

[0021] Attached Figure 3 For attachment Figure 1 Schematic diagram of the structure of the middle swing arm;

[0022] Attached Figure 4 For attachment Figure 1 A schematic diagram of the structure of the middle connecting seat;

[0023] Attached Figure 5 For attachment Figure 1 Schematic diagram of the structure of the auxiliary guide rail.

[0024] Among them: 1. opening and closing mold frame; 11. fixed mold frame; 12. movable mold frame; 13. first rotating shaft; 14. torsion spring; 2. main guide rail; 3. auxiliary guide rail; 31. second hole; 32. guide side; 4. connecting seat; 41. limiting groove; 42. mounting shaft; 43. first hole; 5. swing arm; 51. lower arm; 511. second mounting hole; 512. third mounting hole; 52. connecting arm; 53. upper arm; 531. first mounting hole; 6. inner roller; 7. outer roller; 8. limiting mechanism; 81. tension spring; 82. limiting member; 9. second rotating shaft. DETAILED DESCRIPTION

[0025] The technical solution of the present invention is further described below in conjunction with specific embodiments and drawings.

[0026] In the following, only some exemplary embodiments are briefly described. As those skilled in the art will appreciate, the described embodiments may be modified in various ways without departing from the spirit or scope of the embodiments of the present invention. Therefore, the drawings and descriptions are considered to be exemplary and non-restrictive in nature.

[0027] In the description of the embodiments of the present invention, it should be understood that the terms "length", "inside", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the embodiments of the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the embodiments of the present invention.

[0028] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of the embodiments of the present invention, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0029] In the embodiments of the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection, an electrical connection, or a communication; it can be a direct connection, or an indirect connection through an intermediate medium, and it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the embodiments of the present invention can be understood according to specific circumstances.

[0030] In the embodiments of the present invention, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include the first and second features being in direct contact, or may include the first and second features being in contact not directly but through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes the first feature being directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes the first feature being directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0031] The disclosure below provides many different embodiments or examples to implement different structures of the embodiments of the present invention. In order to simplify the disclosure of the embodiments of the present invention, the parts and settings of specific examples are described below. Of course, they are only examples, and the purpose is not to limit the embodiments of the present invention. In addition, the embodiments of the present invention can repeat reference numbers and / or reference letters in different examples, and this repetition is for the purpose of simplification and clarity, which itself does not indicate the relationship between the various embodiments and / or settings discussed.

[0032] See also Figure 1-2 As shown, this embodiment provides an opening and closing locking guide rail for limiting the movement of the opening and closing mold frame 1 in the locking section. The opening and closing mold frame 1 includes a fixed mold frame 11 and a movable mold frame 12 that can be opened and closed around the same axis, a first rotating shaft 13 that is rotatable around its own axis and is arranged in the open end of the fixed mold frame 11, and a torsion spring 14 that is installed at the lower end of the first rotating shaft 13 at a certain pre-tightening angle.

[0033] The opening and closing lock guide rail includes an arc-shaped main rail 2, an auxiliary rail 3 arranged on the main rail 2, and a connecting seat 4 connected to the main rail 2. The auxiliary rail 3 can be rotatably arranged on the connecting seat 4 around a first axis passing through its entrance end. The auxiliary rail 3, the connecting seat 4 and the main rail 2 are arranged in sequence along a direction parallel to the first axis, and the first axis is parallel to the axial direction of the main rail 2 (i.e. Figure 2In this embodiment, the auxiliary guide rail 3, the connecting seat 4 and the main guide rail 2 are arranged in sequence from top to bottom along the vertical direction.

[0034] The above-mentioned opening and closing lock guide rail further includes a swing arm 5 having one end connected to the first rotating shaft 13, and an inner roller 6 and an outer roller 7 which are respectively arranged on the swing arm 5 and can rotate around the axis direction of the swing arm 5. The swing arm 5 and the auxiliary guide rail 3 are arranged alternately, and the inner roller 6 is used to abut the inner side surface of the main guide rail 2 through its outer peripheral portion, and the outer roller 7 is used to abut the outer side surface of the auxiliary guide rail 3 through its outer peripheral portion. In this embodiment, the swing arm 5 is arranged across the auxiliary guide rail 3; the axis lines of the inner roller 6 and the outer roller 7 are parallel to each other and parallel to the first axis line.

[0035] See also Figure 3 As shown, the swing arm 5 includes a lower arm 51, a connecting arm 52 and an upper arm 53 connected in sequence, the upper arm 53 and the lower arm 51 are arranged at intervals in a direction parallel to the first axis, and one of the lower arm 51 and the upper arm 53 is used to connect the inner roller 6, and the other is used to connect the outer roller 7. One of the lower arm 51 and the upper arm 53 is used to connect the first rotating shaft 13, and the inner roller 6 is provided between the first rotating shaft 13 and the outer roller 7.

[0036] In this embodiment, the upper arm 53 is located above the lower arm 51, and the connecting arm 52 is parallel to the first axis; the upper arm 53 is provided with a first mounting hole 531 for connecting the outer roller 7, and the lower arm 51 is provided with a second mounting hole 511 for connecting the inner roller 6 and a third mounting hole 512 for connecting the first rotating shaft 13.

[0037] The above-mentioned opening and closing locking guide rail also includes a limiting mechanism 8, which is used to limit the rotational movement of the auxiliary guide rail 3 around the first axis.

[0038] The limiting mechanism 8 includes a tension spring 81 with one end connected to the outlet end of the auxiliary guide rail 3 and a limiting member 82 arranged on the auxiliary guide rail 3 or the connecting seat 4. The other end of the tension spring 81 is connected to the main rail 2 or the connecting seat 4. Through this setting, the limiting member 82 is used to limit the rotational movement of the auxiliary guide rail 3 around the first axis line back to the first rotating shaft 13.

[0039] See also Figure 5 As shown, in this embodiment, the limiting member 82 is a limiting shaft protruding downward at the outlet end of the auxiliary guide rail 3, and the tension spring 81 is used to provide a driving limit shaft against the inner peripheral portion of the connecting seat 4 (refer to Figure 1-2 The elastic restoring force of the main guide rail 21 in the figure (the circumferential side is the outer side and the center side is the inner side).

[0040] See also Figure 4As shown, the inner peripheral portion of the connecting seat 4 is provided with a limiting groove 41 for being clamped by the limiting shaft, and the limiting groove 41 and the limiting shaft are respectively arranged along the vertical direction.

[0041] See also Figure 4 As shown, the connecting seat 4 is provided with a mounting shaft 42, and the two ends of the tension spring 81 are respectively connected to the mounting shaft 42 and the limiting shaft, the mounting shaft 42 and the limiting shaft are at the same height, and the tension spring 81 is arranged in the horizontal direction. Through this arrangement, when the outlet end of the auxiliary guide rail 3 rotates close to the first rotating shaft 13, it can be reset by the tension spring 81.

[0042] See also Figure 4-5 As shown, the connecting seat 4 is provided with a first hole 43, the auxiliary guide rail 3 is provided with a second hole 31, the axis lines of the first hole 43 and the second hole 31 are both the first axis line, and the opening and closing lock guide rail further includes a second rotating shaft 9 passing through the first hole 43 and the second hole 31. Through this arrangement, the auxiliary guide rail 3 can rotate relative to the connecting seat 4 around the first axis line.

[0043] See also Figure 1 As shown, a guide side surface 32 is provided outside the inlet end of the auxiliary guide rail 3, and the guide side surface 32 gradually convexes along the sliding direction of the outer roller 7. Through this arrangement, it can guide the guide rail section where the outer roller 7 enters the auxiliary guide rail.

[0044] By setting the auxiliary guide rail 3 with the flexible connection, when the mold locking mechanism of the mold frame 1 is locked (i.e. the mold frame 1 enters the locking section), the inner roller 6 enters the main guide rail 2, and the outer roller 7 enters the auxiliary guide rail 3. Under the elastic force of the torsion spring 14 returning to its original position, the side of the inner roller 6 is pressed against the inner guide surface of the main guide rail 2, and the side of the outer roller 7 is pressed against the outer guide surface of the auxiliary guide rail 3, so as to achieve precise positioning of the inner roller 6 in the locking section. When the mold frame assembly is abnormally locked due to reasons such as clamping the container blank, causing the inner roller 6 and the outer roller 7 to shift inward, the outer roller 7 can also enter through the guide side 32 of the auxiliary guide rail 3, and push the auxiliary guide rail 3 to rotate inward around the first axis under the restriction of the tension spring 81. After the outer roller 7 rolls out of the auxiliary guide rail 3, under the action of the tension spring 81, the auxiliary guide rail 3 rotates outward in the opposite direction to reset until the limiting shaft thereon fits with the limiting groove 41 on the connecting seat 4, and the auxiliary guide rail 3 is reset.

[0045] The above embodiments are only for illustrating the technical concept and features of the present invention, and their purpose is to enable people familiar with this technology to understand the content of the present invention and implement it. They cannot be used to limit the protection scope of the present invention. Any equivalent changes or modifications made according to the spirit of the present invention should be included in the protection scope of the present invention.

Claims

1. An opening and closing locking guide rail, used to limit the movement of an opening and closing mold frame in a locking section, wherein the opening and closing mold frame comprises a fixed mold frame and a movable mold frame, and a first rotating shaft rotatably arranged in the opening end of the fixed mold frame around its own axis; characterized in that: The opening and closing locking guide rail comprises an arc-shaped main guide rail and an auxiliary guide rail arranged on the main guide rail; The opening and closing lock guide rail further comprises a connecting seat connected to the main guide rail, the auxiliary guide rail is rotatably arranged on the connecting seat around a first axis passing through the entrance end thereof, the auxiliary guide rail, the connecting seat and the main guide rail are arranged in sequence along a direction parallel to the first axis, and the first axis is parallel to the axial direction of the main guide rail; The opening and closing lock guide rail also includes a swing arm with one end connected to the first rotating shaft, an inner roller and an outer roller arranged on the swing arm so as to be rotatable around the axis of the swing arm, the swing arm and the auxiliary guide rail are arranged alternately, the inner roller is used to abut against the inner side surface of the main guide rail through its outer peripheral portion, and the outer roller is used to abut against the outer side surface of the auxiliary guide rail through its outer peripheral portion; The opening and closing locking guide rail also includes a limiting mechanism, which is used to limit the rotational movement of the auxiliary guide rail around the first axis.

2. The opening and closing locking guide rail according to claim 1, characterized in that: The swing arm includes a lower arm, a connecting arm and an upper arm which are connected in sequence, and the upper arm and the lower arm are arranged at intervals in a direction parallel to the first axis. Among the lower arm and the upper arm, one is used to connect the inner roller, and the other is used to connect the outer roller.

3. The opening and closing locking guide rail according to claim 2, characterized in that: One of the lower arm and the upper arm is used to connect the first rotating shaft, and the inner roller is disposed between the first rotating shaft and the outer roller.

4. The opening and closing locking guide rail according to claim 1, characterized in that: The axial center lines of the inner roller and the outer roller are parallel to each other and parallel to the first axial center line.

5. The opening and closing locking guide rail according to claim 1, characterized in that: The limiting mechanism includes a tension spring with one end connected to the exit end of the auxiliary guide rail and a limiting member arranged on the auxiliary guide rail or the connecting seat, the other end of the tension spring is connected to the main rail or the connecting seat, and the limiting member is used to limit the rotational movement of the auxiliary guide rail around the first axis line away from the first rotating axis.

6. The opening and closing locking guide rail according to claim 5, characterized in that: The limiting member is a limiting shaft protruding downwardly from the outlet end of the auxiliary guide rail, and the tension spring is used to provide an elastic restoring force that drives the limiting shaft to press against the inner peripheral portion of the connecting seat.

7. The opening and closing locking guide rail according to claim 6, characterized in that: The inner peripheral portion of the connecting seat is provided with a limiting groove for being clamped by the limiting shaft.

8. The opening and closing locking guide rail according to claim 6, characterized in that: The connecting seat is provided with a mounting shaft, and the two ends of the tension spring are respectively connected to the mounting shaft and the limiting shaft.

9. The opening and closing locking guide rail according to claim 1, characterized in that: The connecting seat is provided with a first hole, the auxiliary guide rail is provided with a second hole, the axis center lines of the first hole and the second hole are both the first axis center line, and the opening and closing locking guide rail also includes a second rotating shaft passing through the first hole and the second hole.

10. The opening and closing locking guide rail according to claim 1, characterized in that: A guide side surface is provided on the outer side of the inlet end of the auxiliary guide rail, and the guide side surface gradually bulges outward along the sliding direction of the outer roller.

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