A large retraction ratio telescopic mechanism for narrow space

Abstract

The utility model relates to a roto mould die drawing technology field, and disclose a big contractible mechanism of contraction ratio for narrow space, including fixed assembly, the fixed assembly fixedly connected with die plug and power -assisted mechanism, power -assisted mechanism fixedly connected with locking mechanism, the fixed assembly rotationally connected with contractible mechanism, the contractible mechanism includes first incomplete gear, second incomplete gear, first connecting rod, second connecting rod, third connecting rod, fourth connecting rod, stretching cylinder, stretching piston rod, second fixed block, wherein the first incomplete gear has second incomplete gear, the first incomplete gear is connected with fixed second shaft sleeve, the second shaft sleeve has rotation first connecting rod, the first connecting rod is away from the one end of first incomplete gear with first bearing rotationally connected: solve in the scene of very narrow space, the limitation of ordinary cylinder, satisfy the demand, ensure production quality and efficiency.

Description

Technical Field

[0001] This utility model relates to the field of rotational molding die drafting technology, and more specifically to a large shrinkage ratio telescopic mechanism for use in narrow spaces. Background Technology

[0002] Release molding from rotational molding molds is a crucial step in removing the product from the mold after rotational molding. Due to the complex mold structure, strong adhesion between the product and the mold, and potential constraints from confined spaces, it is essential to select a suitable release method and control the release force to prevent product deformation and damage, thereby ensuring production quality and efficiency.

[0003] Traditional drafting often relies on cylinder drive; however, in extremely confined spaces, ordinary cylinders have significant limitations, as their stroke cannot meet the requirements. Utility Model Content

[0004] In order to overcome the above-mentioned defects of the prior art, the present invention provides a telescopic mechanism with a large contraction ratio for use in narrow spaces, so as to solve the problems existing in the background art.

[0005] This utility model provides the following technical solution: a high-contraction-ratio telescopic mechanism for use in confined spaces, comprising a fixed component, wherein the fixed component is fixedly connected to a mold plug and an assist mechanism, the assist mechanism is fixedly connected to a locking mechanism, and the fixed component is rotatably connected to a telescopic mechanism, the telescopic mechanism comprising a first incomplete gear, a second incomplete gear, a first connecting rod, a second connecting rod, a third connecting rod, a fourth connecting rod, an extension cylinder, an extension piston rod, and a second fixed block, wherein the first incomplete gear meshes with the second incomplete gear, the first incomplete gear is fixedly connected to a second bushing, the second bushing allows rotation of the first connecting rod, and the first connecting rod moves away from the first incomplete gear. One end of the complete gear is rotatably connected to the first bearing. The second bushing is fixedly connected to the side wall away from the first connecting rod, and the end of the second connecting rod away from the first incomplete gear is rotatably connected to the fourth bearing. The second connecting rod is fixedly connected to the second fixing block, and the second fixing block is fixedly connected to the extension piston rod. The extension piston rod is connected to the extension cylinder by a retaining ring. The side of the second incomplete gear close to the first connecting rod is corresponding to the third connecting rod. The third connecting rod is fixedly connected to the first bushing, and the side of the third connecting rod away from the second incomplete gear is rotatably connected to the second bearing. The side of the first bushing away from the third connecting rod is rotatably connected to the fourth connecting rod. Furthermore, the telescopic mechanism includes a first fixing block, the end of the fourth link away from the first bushing is rotatably connected to the third bearing, the third link is fixedly connected to the first fixing block, and the first fixing block is fixedly connected to the extension cylinder.

[0006] Furthermore, the fixing assembly includes a first fixing frame, a first fixing plate, a second fixing frame, a second fixing plate, a first bushing, a second bushing, a third bearing, and a fourth bearing. The first fixing frame is fixedly connected to the first fixing plate on both sides, and the first bushing and the second bushing are rotatably connected inside the first fixing frame. The first fixing frame has a corresponding second fixing frame and a second fixing plate, and the second fixing frame is fixedly connected to the third bearing and the fourth bearing.

[0007] Furthermore, the fixing component includes a locking block, a third fixing plate, a first bearing, and a second bearing. The second fixing plate is fixedly connected to the first bearing and the second bearing. The locking block is fixedly connected to the top edge of the second fixing plate. The third fixing plate is fixedly connected to the bottom end of the second fixing plate. The mold plug is fixedly connected to the third fixing plate. The mold plug is provided with a sealing ring.

[0008] Furthermore, the assist mechanism includes an assist cylinder and an assist piston rod, wherein the assist cylinder is fixedly connected to the second fixed frame, and the assist cylinder is connected to the assist piston rod by a retaining spring.

[0009] Furthermore, the assist mechanism includes a mounting plate, and the top end of the assist piston rod is fixedly connected to the mounting plate.

[0010] Furthermore, the locking mechanism includes a first mounting bracket, a snap-fit ​​plate, and an opening slot, wherein the first mounting bracket is fixedly connected to the mounting plate, the snap-fit ​​plate is fixedly connected to the first mounting bracket, the snap-fit ​​plate snaps into the snap-fit ​​block, and the first mounting bracket has an opening slot.

[0011] Furthermore, the locking mechanism includes a second mounting bracket, a locking cylinder, a locking piston rod, and a locking plate. The opening slot corresponds to the locking plate, and the locking plate is fixedly connected to the locking piston rod. The end of the locking piston rod away from the locking plate is connected to the locking cylinder via a retaining spring. The locking cylinder is fixedly connected to the second mounting bracket, which is fixedly connected to the first mounting bracket. When the mold is closed, the mold is filled with a sealing ring, and there is relatively large resistance when it goes in and out, which locks the locking block onto the locking plate.

[0012] The technical effects and advantages of this utility model are as follows: This utility model, by incorporating a telescopic mechanism, overcomes the limitations of ordinary cylinders in extremely confined spaces, meets the requirements, and ensures production quality and efficiency.

[0013] This utility model incorporates an assist mechanism and a locking mechanism to lock the locking block inside the locking plate, allowing the assist cylinder to apply force; otherwise, the stroke of the assist cylinder would be an empty stroke and would not apply force. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0015] Figure 2 This is a cross-sectional schematic diagram of the overall structure of this utility model.

[0016] Figure 3 These are schematic cross-sectional views of the overall structure of this utility model from different perspectives.

[0017] Figure 4 For the present utility model Figure 1 Enlarged structural diagram at point A in the middle.

[0018] Figure 5 For the present utility model Figure 2 Enlarged structural diagram at point B.

[0019] Figure 6 For the present utility model Figure 3 Enlarged structural diagram at point C.

[0020] The attached figures are labeled as follows: 1. Fixing component; 101. First fixing frame; 102. First fixing plate; 103. Second fixing frame; 104. Second fixing plate; 105. Locking block; 106. Third fixing plate; 107. First bearing; 108. Second bearing; 109. First bushing; 110. Second bushing; 111. Third bearing; 112. Fourth bearing; 2. Mold plug; 3. Assist mechanism; 301. Assist cylinder; 302. Assist piston rod; 303. Mounting plate; 4. Locking mechanism ; 401, First mounting bracket; 402, Snap-fit ​​plate; 403, Opening slot; 404, Second mounting bracket; 405, Locking cylinder; 406, Locking piston rod; 407, Locking plate; 5, Telescopic mechanism; 501, First incomplete gear; 502, Second incomplete gear; 503, First connecting rod; 504, Second connecting rod; 505, Third connecting rod; 506, Fourth connecting rod; 507, First fixing block; 508, Extension cylinder; 509, Extension piston rod; 510, Second fixing block. Detailed Implementation

[0021] The technical solution of this utility model will be clearly and completely described below with reference to the accompanying drawings. In addition, the forms of the various structures described in the following embodiments are merely illustrative. The large contraction ratio telescopic mechanism for narrow spaces involved in this utility model is not limited to the structures described in the following embodiments. All other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0022] Reference Figure 1-6This utility model provides a telescopic mechanism with a large contraction ratio for use in narrow spaces, including a fixed component 1, a mold plug 2 and an assist mechanism 3 fixedly connected to the fixed component 1, a locking mechanism 4 fixedly connected to the assist mechanism 3, and a telescopic mechanism 5 rotatably connected to the fixed component 1. The fixing assembly 1 includes a first fixing frame 101, a first fixing plate 102, a second fixing frame 103, a second fixing plate 104, a locking block 105, a third fixing plate 106, a first bearing 107, a second bearing 108, a first bushing 109, a second bushing 110, a third bearing 111, and a fourth bearing 112. The first fixing frame 101 is fixedly connected to the first fixing plate 102 on both sides. The first fixing frame 101 is rotatably connected to the first bushing 109 and the second bushing 110. The first fixing frame 101 is corresponding to the second fixing frame 103 and the second fixing plate 104. The second fixing frame 103 is fixedly connected to the third bearing 111 and the fourth bearing 112. The second fixing plate 104 is fixedly connected to the first bearing 107 and the second bearing 108. The locking block 105 is fixedly connected to the top edge of the second fixing plate 104. The third fixing plate 106 is fixedly connected to the bottom end of the second fixing plate 104. The third fixing plate 106 is fixedly connected to the mold plug 2, and the mold plug 2 is provided with a sealing ring. The power assist mechanism 3 includes a power assist cylinder 301, a power assist piston rod 302, and a mounting plate 303. The power assist cylinder 301 is fixedly connected to the second fixed frame 103. The power assist cylinder 301 is connected to the power assist piston rod 302 by a snap ring. The top of the power assist piston rod 302 is fixedly connected to the mounting plate 303. The locking mechanism 4 includes a first mounting bracket 401, a snap-fit ​​plate 402, an opening slot 403, a second mounting bracket 404, a locking cylinder 405, a locking piston rod 406, and a locking plate 407. The first mounting bracket 401 is fixedly connected to the mounting plate 303. The snap-fit ​​plate 402 is fixedly connected to the first mounting bracket 401 and snaps into the snap-fit ​​block 105. The first mounting bracket 401 has an opening slot 403 corresponding to the locking plate 407. The locking piston rod 406 is fixedly connected to the locking plate 407. The end of the locking piston rod 406 away from the locking plate 407 is spring-loaded to the locking cylinder 405. The locking cylinder 405 is fixedly connected to the second mounting bracket 404. Mounting bracket 404 is fixedly connected to the first mounting bracket 401. When the mold is closed, the mold plug 2 has a sealing ring, and there is relatively large resistance when it goes in and out. The locking block 105 is locked on the locking plate 402. The locking cylinder 405 is activated, and the locking piston rod 406 connected to it is pushed outward. The locking plate 407 fixedly connected to the locking piston rod 406 is pushed outward, locking the locking block 105 in the locking plate 402. Then, the assist cylinder 301 is activated, which can push the locking mechanism 4 fixedly connected to it upward, locking the locking block 105 in the locking plate 402 so that the assist cylinder 301 can exert force. Otherwise, the stroke of the assist cylinder 301 is an empty stroke and cannot exert force. The telescopic mechanism 5 includes a first incomplete gear 501, a second incomplete gear 502, a first connecting rod 503, a second connecting rod 504, a third connecting rod 505, a fourth connecting rod 506, a first fixing block 507, a telescopic cylinder 508, a telescopic piston rod 509, and a second fixing block 510. The first incomplete gear 501 meshes with the second incomplete gear 502. The first incomplete gear 501 is fixedly connected to a second bushing 110. The second bushing 110 allows rotation of the first connecting rod 503. The end of the first connecting rod 503 away from the first incomplete gear 501 is connected to the first... Bearing 107 is rotatably connected. A second connecting rod 504 is fixedly connected to the side wall of the second bushing 110 away from the first connecting rod 503. A fourth bearing 112 is rotatably connected to the end of the second connecting rod 504 away from the first incomplete gear 501. A second fixing block 510 is fixedly connected to the second connecting rod 504. An extension piston rod 509 is fixedly connected to the second fixing block 510. An extension cylinder 508 is connected to the extension piston rod 509 via a snap ring. A third connecting rod 505 is located on the side of the second incomplete gear 502 closest to the first connecting rod 503. The third connecting rod 505 is connected to the first bushing 109. A fixed connection is established. A second bearing 108 is rotatably connected to the side of the third connecting rod 505 furthest from the second incomplete gear 502. A fourth connecting rod 506 is rotatably connected to the side of the first bushing 109 furthest from the third connecting rod 505. The end of the fourth connecting rod 506 furthest from the first bushing 109 is rotatably connected to the third bearing 111. A first fixing block 507 is fixedly connected to the third connecting rod 505. The first fixing block 507 is fixedly connected to the extension cylinder 508. Activating the extension cylinder 508 drives the third connecting rod 505 fixedly connected to the first fixing block 507 and the second fixing block 502. The second connecting rod 504, which is fixedly connected to the third connecting rod 505, extends, and the second incomplete gear 502, which is fixedly connected to the third connecting rod 505, rotates. The rotation of the second incomplete gear 502 drives the first incomplete gear 501, which meshes with it, to rotate in the opposite direction, causing the first connecting rod 503 and the third connecting rod 505 to extend in the opposite direction to the second connecting rod 504 and the fourth connecting rod 506. The two sets of connecting rods transmit torque through the meshing of the first incomplete gear 501 and the second incomplete gear 502, which solves the limitations of ordinary cylinders in extremely narrow spaces, meets the requirements, and ensures production quality and efficiency.

[0023] The working principle of this utility model: First: When the mold is closed, the mold plug 2 has a sealing ring, and there is relatively large resistance when it goes in and out. The locking block 105 is locked on the locking plate 402. The locking cylinder 405 is activated, and the locking piston rod 406 connected to it is pushed outward. The locking plate 407, which is fixedly connected to the locking piston rod 406, is pushed outward. The locking block 105 is locked in the locking plate 402.

[0024] Secondly: Activating the power-assisted cylinder 301 will push the locking mechanism 4, which is fixedly connected to it, upwards, locking the locking block 105 in the locking plate 402 so that the power-assisted cylinder 301 can exert force. Otherwise, the stroke of the power-assisted cylinder 301 will be an empty stroke and it will not exert force.

[0025] Finally: The extension cylinder 508 is activated, which drives the third connecting rod 505, which is fixedly connected to the first fixed block 507, and the second connecting rod 504, which is fixedly connected to the second fixed block 510, to extend. The second incomplete gear 502, which is fixedly connected to the third connecting rod 505, rotates. The rotation of the second incomplete gear 502 drives the first incomplete gear 501, which meshes with it, to rotate in the opposite direction. This causes the first connecting rod 503 and the third connecting rod 505 to extend in the opposite direction to the second connecting rod 504 and the fourth connecting rod 506. The two sets of connecting rods transmit torque through the meshing of the first incomplete gear 501 and the second incomplete gear 502, which solves the limitations of ordinary cylinders in extremely confined spaces, meets the requirements, and ensures production quality and efficiency.

[0026] Finally, the following points should be noted: First, in the description of this application, it should be noted that, unless otherwise specified and limited, the terms "installation", "connection", and "linkage" should be interpreted broadly, and can be mechanical or electrical connections, or internal connections between two components, or direct connections. "Up", "down", "left", "right", etc. are only used to indicate relative positional relationships. When the absolute position of the described object changes, the relative positional relationship may change. Secondly: The accompanying drawings of the embodiments disclosed in this utility model only involve the structures involved in the embodiments disclosed in this utility model. Other structures can refer to the general design. In the absence of conflict, the same embodiment and different embodiments of this utility model can be combined with each other. Finally: The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A high-contraction-ratio telescopic mechanism for use in narrow spaces, comprising a fixing component (1), wherein the fixing component (1) is fixedly connected to a mold plug (2) and an assisting mechanism (3), wherein the assisting mechanism (3) is fixedly connected to a locking mechanism (4), and the fixing component (1) is rotatably connected to a telescopic mechanism (5), characterized in that: The telescopic mechanism (5) includes a first incomplete gear (501), a second incomplete gear (502), a first connecting rod (503), a second connecting rod (504), a third connecting rod (505), a fourth connecting rod (506), a telescopic cylinder (508), a telescopic piston rod (509), and a second fixing block (510). The first incomplete gear (501) meshes with the second incomplete gear (502). The first incomplete gear (501) is fixedly connected to a second bushing (110). The second bushing (110) has a rotating first connecting rod (503). The end of the first connecting rod (503) away from the first incomplete gear (501) is rotatably connected to a first bearing (107). The second bushing (110) has a side wall fixedly connected to the second connecting rod (504) away from the first connecting rod (503). The second connecting rod (504) is rotatably connected to a fourth bearing (112) at the end away from the first incomplete gear (501). The second connecting rod (504) is fixedly connected to a second fixing block (510). The second fixing block (510) is fixedly connected to an extension piston rod (509). The extension piston rod (509) is circlip-connected to an extension cylinder (508). The side of the second incomplete gear (502) closest to the first connecting rod (503) is connected to a third connecting rod (505). The third connecting rod (505) is fixedly connected to a first bushing (109). The side of the third connecting rod (505) away from the second incomplete gear (502) is rotatably connected to a second bearing (108). The side of the first bushing (109) away from the third connecting rod (505) is rotatably connected to a fourth connecting rod (506).

2. The high-contraction-ratio telescopic mechanism for use in confined spaces according to claim 1, characterized in that: The telescopic mechanism (5) includes a first fixed block (507), the end of the fourth link (506) away from the first bushing (109) is rotatably connected to the third bearing (111), the third link (505) is fixedly connected to the first fixed block (507), and the first fixed block (507) is fixedly connected to the extension cylinder (508).

3. The high-contraction-ratio telescopic mechanism for use in confined spaces according to claim 1, characterized in that: The fixing component (1) includes a first fixing frame (101), a first fixing plate (102), a second fixing frame (103), a second fixing plate (104), a first bushing (109), a second bushing (110), a third bearing (111), and a fourth bearing (112). The first fixing frame (101) is fixedly connected to the first fixing plate (102) on both sides. The first fixing frame (101) is rotatably connected to the first bushing (109) and the second bushing (110). The first fixing frame (101) is corresponding to the second fixing frame (103) and the second fixing plate (104). The second fixing frame (103) is fixedly connected to the third bearing (111) and the fourth bearing (112).

4. The high-contraction-ratio telescopic mechanism for use in confined spaces according to claim 3, characterized in that: The fixing component (1) includes a locking block (105), a third fixing plate (106), a first bearing (107), and a second bearing (108). The second fixing plate (104) is fixedly connected to the first bearing (107) and the second bearing (108). The locking block (105) is fixedly connected to the top edge of the second fixing plate (104). The third fixing plate (106) is fixedly connected to the bottom end of the second fixing plate (104). The mold plug (2) is fixedly connected to the third fixing plate (106). The mold plug (2) is provided with a sealing ring.

5. The high-contraction-ratio telescopic mechanism for use in narrow spaces according to claim 3, characterized in that: The assist mechanism (3) includes an assist cylinder (301) and an assist piston rod (302), wherein the assist cylinder (301) is fixedly connected to the second fixed frame (103), and the assist cylinder (301) is circlip-connected to the assist piston rod (302).

6. The high-contraction-ratio telescopic mechanism for use in confined spaces according to claim 5, characterized in that: The assist mechanism (3) includes a mounting plate (303), and the top end of the assist piston rod (302) is fixedly connected to the mounting plate (303).

7. A high-contraction-ratio telescopic mechanism for use in confined spaces according to claim 4 or 6, characterized in that: The locking mechanism (4) includes a first mounting bracket (401), a snap-fit ​​plate (402), and an opening slot (403). The first mounting bracket (401) is fixedly connected to the mounting plate (303), and the snap-fit ​​plate (402) is fixedly connected to the first mounting bracket (401). The snap-fit ​​plate (402) snaps into the snap-fit ​​block (105), and the first mounting bracket (401) has an opening slot (403).

8. The high-contraction-ratio telescopic mechanism for use in confined spaces according to claim 7, characterized in that: The locking mechanism (4) includes a second mounting bracket (404), a locking cylinder (405), a locking piston rod (406), and a locking plate (407). The opening slot (403) corresponds to the locking plate (407). The locking plate (407) is fixedly connected to the locking piston rod (406). The end of the locking piston rod (406) away from the locking plate (407) is connected to the locking cylinder (405) by a snap ring. The locking cylinder (405) is fixedly connected to the second mounting bracket (404). The second mounting bracket (404) is fixedly connected to the first mounting bracket (401). When the mold is closed, the mold plug (2) has a sealing ring. There is resistance when it goes in and out, which locks the locking block (105) onto the locking plate (402).

Images