Flipper transmission mechanism

Abstract

The utility model relates to a front swing arm and rear swing arm's lower extreme are hinged on the base respectively in turnover mould transmission mechanism, and the front swing arm is connected with the conjugate connecting rod between rear swing arm, and the conjugate connecting rod includes front connecting arm, rear connecting arm and the connecting sleeve of rotation adjustment, the upper portion of front connecting arm is hinged with the front swing arm, and the front connecting arm includes the thread tap screw, the upper portion of rear connecting arm is hinged with the rear swing arm, and the rear connecting arm includes the reverse screw, and the connecting sleeve has the connecting hole and locking groove, and the connecting hole front end port respectively with the thread tap screw, reverse screw cooperation thread joint, and the locking groove still is equipped with the tight fastener. Among them, the connecting sleeve not only can to front connecting arm, rear connecting arm loosen together and make its own can rotate and realize front connecting arm and rear connecting arm telescopic on the connecting sleeve, complete conjugate connecting rod length adjustment, complete front swing arm and rear swing arm between the angle position adjustment apart, the connecting sleeve still can to the thread tap link, reverse link tighten together, ensure that the relative position is stable after adjustment, and the structure is stable.

Description

Technical Field

[0001] This utility model relates to the transmission mechanism of the flipping mold in a plastic product thermoforming equipment. Background Technology

[0002] In plastic thermoforming equipment, for example, there is a tilting mold for molding operations. The tilting mold body can be raised, lowered, opened, closed, and tilted. For example, the CN204431576U cam-linkage tilting mold mechanism includes a tilting mold body (i.e., the lower mold base). A conjugate cam 8, in conjunction with a set of swing arm structures (including a front link, a rear link, and a conjugate link), drives the tilting mold body to be raised, lowered, opened, and closed via a pull rod. Another conjugate cam, in conjunction with another set of swing arm structures (including a front link, a rear link, and a conjugate link), drives the tilting mold body to be tilted via another pull rod. Action; wherein, the conjugate cam is configured between the front swing arm and the rear swing arm, the front link (or front swing arm) and the rear link (or rear swing arm) are respectively hinged to the base, and their upper ends are connected by the front and rear parts of the hinged conjugate link. The front link and the rear link are driven to swing forward and backward (i.e., swing back and forth) by the conjugate cam between them; in addition, the angle between the front link and the rear link needs to be adapted to meet the adjustment of lifting, opening and closing and flipping actions according to the adjustment or replacement of the conjugate cam. Usually, the conjugate link needs to be disassembled and replaced, which is more troublesome and difficult to operate conveniently. Utility Model Content

[0003] In view of the technical problems existing in the background art, the present invention aims to provide a flipping mold transmission mechanism that facilitates the adjustment of the length of the conjugate connecting rod.

[0004] To solve the above-mentioned technical problems, the present invention adopts the following technical solution: a flipping mold transmission mechanism, including a paired front swing arm and a rear swing arm, the lower ends of the front swing arm and the rear swing arm are respectively hinged to the base, and a conjugate connecting rod is connected between the front swing arm and the rear swing arm. The conjugate connecting rod includes a front connecting arm, a rear connecting arm and a rotary adjustable connecting sleeve. The front connecting arm is hinged to the upper part of the front swing arm and includes a spur thread screw. The rear connecting arm is hinged to the upper part of the rear swing arm and includes a reverse thread screw. The connecting sleeve has a connecting hole and a locking groove. The front end of the connecting hole is threadedly connected to the spur thread screw, and the rear end of the connecting hole is threadedly connected to the reverse thread screw. The locking groove is also equipped with a fastener, which is installed on the connecting sleeve. The locking groove is located next to the connecting hole and connects the connecting hole to the outer wall of the connecting sleeve.

[0005] The following optimizations or supplementary explanations can be made to the above technical solutions.

[0006] For example, the connecting hole is eccentrically set on the connecting sleeve, the connecting hole is an eccentric hole on the connecting sleeve, the locking groove is set on the thick-walled part of the connecting sleeve outside the connecting hole, and the thin-walled part and the thick-walled part of the connecting sleeve are set on opposite sides of the connecting hole; the fastener is configured on the thick-walled part to cooperate with the fastener locking groove.

[0007] For example, the connecting hole is a through hole, and the locking groove connects to the hole wall of the connecting hole.

[0008] For example, the front connecting arm is set as a single unit, and the rear connecting arm is set as a single unit.

[0009] The front end of the connecting hole has a right-hand thread on its wall that can be screwed into a straight thread screw.

[0010] The rear end of the connecting hole has a left-hand thread on its wall that engages with a reverse-thread screw.

[0011] The connecting sleeve has mounting holes on both the left and right sides of the locking groove for installing fasteners. These fasteners are used to adjust the size of the locking groove.

[0012] For example, a row of mounting holes is provided along the locking groove from back to front; for example, the mounting holes include a through hole on one side and a threaded hole on the other side, and the fastener is a screw, which passes through the through hole and is connected to the threaded hole, and the head of the screw is stopped by the through hole.

[0013] In addition, the connecting sleeve has an operating part that cooperates to operate its rotation.

[0014] For example, the operating part uses a lever or screw mechanism.

[0015] The beneficial effects of this utility model are as follows: In this flipping mold transmission mechanism, the connecting sleeve can not only loosen the front connecting arm (its positive tooth connecting rod) and the rear connecting arm (its negative tooth connecting rod) together, allowing the connecting sleeve itself to rotate and realize the extension and retraction of the front and rear connecting arms on the connecting sleeve, thus completing the adjustment of the length of the conjugate connecting rod and the adaptive adjustment of the separation angle position (i.e., the distance between the upper ends) between the front and rear swing arms; the connecting sleeve can also lock the positive tooth connecting rod and the negative tooth connecting rod together, ensuring that the relative position of the connecting sleeve and the front and negative connecting arms is stable after adjustment. After locking, their structure is stable, and they are not easy to loosen during the operation of the flipping mold, thus having a longer service life. Attached Figure Description

[0016] The following description, in conjunction with the accompanying drawings, details the embodiments and working principles of this utility model.

[0017] Figure 1 This is a schematic diagram of the structure of this utility model.

[0018] Figure 2 for Figure 1 A three-dimensional structural diagram of the conjugate link.

[0019] Figure 3 for Figure 2 Side view.

[0020] Figure 4 for Figure 3 Top view, and in exploded state.

[0021] Figure 5 for Figure 3 The cross-sectional structural view of AA.

[0022] In the picture: 1. Front swing arm; 2. Rear swing arm; 3. Conjugate connecting rod; 4. Front connecting arm; 40. Straight threaded screw; 41. Hinge hole; 42. Bushing; 5. Connecting sleeve; 50. Connecting hole; 51. Locking groove; 52. Thick-walled section; 53. Thin-walled section; 54. Assembly hole; 55. Through hole; 56. Threaded hole; 57. Operating part; 6. Rear connecting arm; 60. Reverse threaded screw; 61. Hinge hole; 62. Bushing; 63. Hinge shaft; 7. Flip mold; 8. Conjugate cam; 9. Base. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the implementation of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.

[0024] Referring to the accompanying drawings, the flipping mold transmission mechanism in this embodiment is a transmission structure for the flipping mold device in a plastic thermoforming equipment. This flipping mold transmission mechanism includes a paired front swing arm 1 and a rear swing arm 2. The lower ends of the front swing arm 1 and the rear swing arm 2 are respectively hinged to the base, allowing the front swing arm 1 and the rear swing arm 2 to swing back and forth on the base 9. A conjugate connecting rod 3 connects the front swing arm 1 and the rear swing arm 2, with both ends of the conjugate connecting rod 3 correspondingly connected to the front swing arm 1 and the rear swing arm 2. This is a mature technology. In this utility model, to solve the problem of easily adjustable length of the conjugate connecting rod 3 and good structural stability, making it less prone to loosening...

[0025] The conjugate link 3 includes a front connecting arm 4, a rear connecting arm 6, and a rotary adjustable connecting sleeve 5, which can be rotated for adjustment. The front connecting arm 4 is hinged to the upper part of the front swing arm 1 and can be connected by a hinge shaft (such as a pivot shaft). The front connecting arm 4 includes a positive thread screw 40. The rear connecting arm 6 is hinged to the upper part of the rear swing arm 2 and can be connected by a hinge shaft (such as a pivot shaft). The rear connecting arm 6 includes a negative thread screw 60. The connecting sleeve 5 has a connecting hole 50 and a locking groove 51. The front end of the connecting hole 50 is threaded into the positive thread screw 40, and the rear end of the connecting hole 50 is threaded into the negative thread screw 60, so that the front end of the connecting sleeve 5 can be connected to the front connecting arm 4, and the rear end of the connecting sleeve 5 can be connected to the rear connecting arm 6. The rotary adjustable connecting sleeve 5 is screwed into the positive thread screw 40 and the negative thread screw 60 by rotating (forward / reverse switching). During the (forward / reverse) rotation, the connecting sleeve 5 screws in or out relative to the positive thread screw 40 and the negative thread screw 60. During the (forward / reverse) rotation of the connecting sleeve 5, the front connecting arm 4 and the rear connecting arm 6 can be brought closer together or separated from each other, thereby realizing the extension and retraction of the front connecting arm 4 and the rear connecting arm 6 on the connecting sleeve 5. The length adjustment of the conjugate connecting rod 3 can be achieved simply by operating the (forward / reverse) rotation of the connecting sleeve 5, which is quite convenient. The length adjustment of the conjugate connecting rod 3 allows for adaptive adjustment of the separation angle position (i.e., the distance between the upper ends) between the front swing arm 1 and the rear swing arm 2. The locking groove 51 is also equipped with a fastener (such as a screw). The fastener is installed on the connecting sleeve 5. The locking groove 51 is located next to the connecting hole 50. The locking groove 51 connects the connecting hole 50 and the outer wall of the connecting sleeve 5. The fastener can adjust the size of the locking groove 51 to control its tightness. When the fastener is loosened, the locking groove 51 will become larger, and the connecting hole 50 will also become larger. This allows the connecting sleeve 5 to loosen the spur thread 40 and the reverse thread 60 at the same time, so that the connecting sleeve 5 can rotate and adjust smoothly, and smoothly realize the extension and retraction of the front connecting arm 4 and the rear connecting arm 6 on the connecting sleeve 5. After the adjustment is completed, the fastener is tightened, and the locking groove 51 will become smaller, and the connecting hole 50 will also become smaller. This allows the connecting sleeve 5 to lock the spur thread 40 and the reverse thread 60 at the same time, so that the connecting sleeve 5 is firmly locked with the front connecting arm 4 and the reverse connecting arm, preventing loosening during operation, and making its structure more stable and secure.

[0026] In this flipping mold transmission mechanism, the connecting sleeve 5 can not only loosen the front connecting arm 4 (its positive tooth connecting rod) and the rear connecting arm 6 (its negative tooth connecting rod) together, allowing the connecting sleeve 5 itself to rotate and achieve the extension and retraction of the front connecting arm 4 and the rear connecting arm 6 on the connecting sleeve 5, thus completing the length adjustment of the conjugate connecting rod 3 and the adaptive adjustment of the separation angle position (i.e., the distance between the upper ends) between the front swing arm 1 and the rear swing arm 2; the connecting sleeve 5 can also lock the positive tooth connecting rod and the negative tooth connecting rod together, ensuring that the relative position of the connecting sleeve 5 with the front connecting arm 4 and the negative connecting arm is stable after adjustment. After locking, their structure is stable, and they are not easy to loosen during the operation of the flipping mold 7, thus having a longer service life.

[0027] Based on the above embodiments, the following optimizations or further explanations can be made.

[0028] For example, the connecting hole 50 is eccentrically positioned on the connecting sleeve 5, meaning the connecting hole 50 is an eccentric hole on the connecting sleeve 5. A thin-walled portion 53 and a thick-walled portion 52 are formed on the connecting sleeve 5, located on opposite sides of the connecting hole 50. A locking groove 51 is located on the thick-walled portion 52 of the connecting sleeve 5 outside the connecting hole 50. Corresponding fasteners are also located on the thick-walled portion 52 to engage with the fastening and locking groove 51. In this structure, the fasteners operate the fastening and locking groove 51 to change the size of the connecting hole 50 more smoothly, easily, effortlessly, and easily, avoiding situations where deformation and locking are difficult. This allows for the use of a connecting sleeve 5 with a larger cross-section (i.e., relatively thicker), resulting in better strength and improved stability of the transmission structure. The connecting sleeve 5 can also have an outer circumferential outer wall structure.

[0029] For example, the connecting hole 50 is a through hole. During machining, the initial state of the connecting hole 50 is a through hole with a circular cross-section. Then, internal threads are set at both ends of the connecting hole 50 (through hole), and the locking groove 51 connects to the hole wall of the connecting hole 50. The front connecting arm 4 (including the spur thread 40) can be set as an integral structure, and the rear connecting arm 6 (including the reverse thread 60) can be set as an integral structure. The structural strength is relatively better, and the later assembly is relatively convenient. They are provided with hinge holes 41 and 61 for hinge. Bushings 42 and 62 can be set in the hinge holes to cooperate with the hinge shaft 63 for connection, installation and operation, etc.

[0030] The front end of the connecting hole 50 has a right-hand thread (i.e., a right-hand internal thread) on its hole wall, which is screwed into the spur thread screw 40. The rear end of the connecting hole 50 has a left-hand thread (i.e., a left-hand internal thread) on its hole wall, which is screwed into the reverse thread screw 60.

[0031] Additionally, the connecting sleeve 5 has mounting holes 54 on both the left and right sides of the locking groove 51 for installing fasteners. These fasteners are used to adjust the size of the locking groove 51. For example, the mounting holes 54 are arranged in a row along the locking groove 51 from back to front, forming a row of multiple fastener tightening structures for a more secure fit. The mounting holes 54 include a through hole 55 on one side (e.g., the left side) and a threaded hole 56 on the other side (e.g., the right side). The fasteners are screws, which pass through the through hole 55 and connect to the threaded hole 56. The screw head is limited and stopped by the through hole 55. The fasteners are used to adjust the size of the locking groove 51.

[0032] The connecting sleeve 5 has an operating part 57 that cooperates to operate its rotation, so as to make it easier to operate the connecting sleeve 5 to rotate. For example, the operating part 57 can be a wrench part (such as a wrench mouth, wrench hole, or hexagonal column, etc.) so that the connecting sleeve 5 can be operated by a tool (such as a wrench, etc.), making it more convenient.

Claims

1. A flipping mold transmission mechanism, including a pair of front swing arms (1) and rear swing arms (2), the lower ends of the front swing arms (1) and rear swing arms (2) are respectively hinged to the base (9), and a conjugate connecting rod (3) is connected between the front swing arms (1) and the rear swing arms (2). Its features are: The conjugate link (3) includes a front connecting arm (4), a rear connecting arm (6), and a rotary adjustable connecting sleeve (5). The front connecting arm (4) is hinged to the upper part of the front swing arm (1), and the front connecting arm (4) includes a spur thread screw (40). The rear connecting arm (6) is hinged to the upper part of the rear swing arm (2), and the rear connecting arm (6) includes a reverse threaded screw (60). The connecting sleeve (5) has a connecting hole (50) and a locking groove (51). The front end of the connecting hole (50) is threaded into the spur screw (40). The rear end of the connecting hole (50) is threaded into the reverse threaded screw (60). The locking groove (51) is also equipped with a fastener, which is installed on the connecting sleeve (5). The locking groove (51) is located next to the connecting hole (50) and connects the connecting hole (50) and the outer wall of the connecting sleeve (5).

2. The flipping mold transmission mechanism as described in claim 1, characterized in that: The connecting hole (50) is eccentrically set on the connecting sleeve (5), and the connecting hole (50) is an eccentric hole on the connecting sleeve (5). The locking groove (51) is located on the thick-walled part (52) of the connecting sleeve (5) outside the connecting hole (50). The thin-walled part (53) and the thick-walled part (52) of the connecting sleeve (5) are located on opposite sides of the connecting hole (50). The fastener is located on the thick-walled part (52) to cooperate with the fastener locking groove (51).

3. The flipping mold transmission mechanism as described in claim 1, characterized in that: The connecting hole (50) is a through hole, and the locking groove (51) connects to the wall of the connecting hole (50). The front connecting arm (4) is set as a single unit. The rear connecting arm (6) is designed as a single unit. The front end of the connecting hole (50) has a right-hand thread on its wall, which is screwed into the spur thread (40). The rear end of the connecting hole (50) has a left-hand thread on its wall that is screwed into a reverse thread screw (60).

4. The flipping mold transmission mechanism as described in claim 1, characterized in that: The connecting sleeve (5) is provided with mounting holes (54) on the left and right sides of the locking groove (51) for installing fasteners. The fasteners are used to adjust the size of the locking groove (51).

5. The flipping mold transmission mechanism as described in claim 4, characterized in that: The mounting holes (54) are arranged in a row from back to front along the locking groove (51). The mounting hole (54) includes a through hole (55) on one side and a threaded hole (56) on the other side. The fastener is a screw that passes through the through hole (55) and connects to the threaded hole (56). The head of the screw is stopped by the through hole (55).

6. The flipping mold transmission mechanism as described in claim 1, characterized in that: The connecting sleeve (5) has an operating part (57) that cooperates to operate its rotation.

7. The flipping mold transmission mechanism as described in claim 6, characterized in that: The operating part (57) adopts a wrench-tightening part.

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