Rotational molding machine rotating arm convenient to adjust

Abstract

The utility model belongs to the technical field of rotational molding machines, and discloses a rotational molding machine rotating arm convenient to adjust, which comprises a rotary table, a regulation and control mechanism is mounted at the top of the rotary table, and a plurality of uniformly distributed transverse telescopic rods are fixedly connected to the side surface of the regulation and control mechanism. The other end of the transverse telescopic rod extends to the outer side of the rotary table and is connected with a clamping mechanism, and a communicating pipe is connected between the clamping mechanism and the regulation and control mechanism. The clamping mechanism comprises a rotating motor fixedly connected to the side, away from the rotary table, of the movable end of the transverse telescopic rod. The distance between the fixed clamping plate and the movable clamping plate can be adjusted through the longitudinal telescopic rod under the cooperation of the regulation and control mechanism and the communicating pipe, and the distance between the clamping mechanism and the rotary table can be adjusted through the transverse telescopic rod under the cooperation of the regulation and control mechanism, so that the adjustment of the size of the clamping mechanism is completed; and meanwhile, the situation that adjacent clamping mechanisms collide with one another is avoided.

Description

Technical Field

[0001] This utility model belongs to the field of rotational molding machine technology, specifically an adjustable rotational molding machine arm. Background Technology

[0002] Rotational molding, also known as rotational molding, is a hollow molding method for thermoplastic plastics. The method involves first adding plastic raw material into a mold, then continuously rotating and heating the mold along two perpendicular axes. Under the influence of gravity and heat, the plastic raw material gradually and evenly coats, melts, and adheres to the entire surface of the mold cavity, forming the desired shape. The product is then cooled and solidified.

[0003] Existing rotational molding machine arms have simple structures and limited functions. However, actual rotational molding production involves a wide variety of product specifications, and different molds are required for different product shapes and sizes. Most existing rotational molding machine arms can only adjust the bearing range of the arm itself, but the distance between two adjacent arms on the turntable is difficult to control. When using larger molds, the molds between adjacent arms may collide. Therefore, it is necessary to develop a rotational molding machine arm that is easy to adjust to overcome the shortcomings of existing technologies. Summary of the Invention

[0004] To address the problems mentioned in the background section, this invention provides an easily adjustable rotational molding machine arm, which has the advantages of high adjustment efficiency and greater practicality.

[0005] To achieve the above objectives, the present invention provides the following technical solution: an adjustable rotational molding machine arm, including a turntable, an adjustment mechanism installed on the top of the turntable, a plurality of evenly distributed transverse telescopic rods fixedly connected to the side of the adjustment mechanism, the other end of the transverse telescopic rods extending to the outside of the turntable and connected to a clamping mechanism, and a second connecting pipe connecting the clamping mechanism and the adjustment mechanism.

[0006] The clamping mechanism includes a rotary motor fixedly connected to the movable end of the transverse telescopic rod on the side away from the turntable. A fixed clamping plate is fixedly connected to the end of the rotary motor output shaft away from the transverse telescopic rod. A movable clamping plate is arranged directly above the fixed clamping plate. A longitudinal telescopic rod is connected between the facing surfaces of the fixed clamping plate and the movable clamping plate on the side near the turntable. The bottom of the longitudinal telescopic rod is fixedly connected to the top of the fixed clamping plate, and the top of the movable end of the longitudinal telescopic rod is fixedly connected to the bottom of the movable clamping plate. The facing surfaces of the fixed clamping plate and the movable clamping plate are both rough structures.

[0007] Preferably, the control mechanism comprises a first adjusting assembly mounted on the top of the rotary table, a second adjusting assembly sealingly sleeved in the first adjusting assembly, and a plurality of positioning clamps arranged in the first adjusting assembly and the second adjusting assembly.

[0008] Preferably, the first adjusting assembly comprises a fixed sleeve fixedly mounted on the top of the rotary table, a plurality of first through holes uniformly distributed and formed in the bottom of the lateral surface of the fixed sleeve, and the plurality of first through holes correspond to and communicate with the transverse telescopic rods one by one, and the other ends of the first through holes communicate with the inside of the fixed sleeve.

[0009] Preferably, the inside of the fixed sleeve sealingly sleeves a first piston located above the plurality of first through holes, the top of the first piston is fixedly connected with a first movable sleeve, and the upper end of the first movable sleeve extends above the fixed sleeve and is fixedly connected with a first control frame.

[0010] Preferably, the second adjusting assembly comprises a second piston sealingly sleeved in the inside of the first movable sleeve, the top of the second piston is fixedly connected with a second movable sleeve, the inside of the second piston is fixedly sleeved with a first communication pipe, and the upper end of the second movable sleeve extends above the first communication pipe and the first movable sleeve and is fixedly connected with a second control frame.

[0011] Preferably, the upper end of the second movable sleeve is provided with a communication cavity, the upper end of the outer surface of the second movable sleeve is connected with a plurality of second through holes uniformly distributed, the plurality of second through holes correspond to the second communication pipes and the clamping mechanism one by one, and the two ends of the second communication pipes respectively communicate with the second through holes and the longitudinal telescopic rods.

[0012] Preferably, the lower end of the first communication pipe communicates with the inside of the first movable sleeve and the bottom region of the second piston, and the upper end of the first communication pipe communicates with the inside of the communication cavity.

[0013] Preferably, a positioning clamp is arranged between the opposite surfaces of the first movable sleeve and the second movable sleeve and the fixed sleeve, the positioning clamp is composed of an inner clamping arc block and an outer clamping arc block which are attached to each other, the inner clamping arc block is fixedly connected to the upper end of the inner wall of the fixed sleeve and the first movable sleeve, the outer clamping arc block is fixedly connected to the outer surface of the second movable sleeve and the first movable sleeve, the first movable sleeve is clamped to each other through the positioning clamp between the first movable sleeve and the fixed sleeve, and the second movable sleeve is clamped to each other through the positioning clamp between the second movable sleeve and the first movable sleeve.

[0014] Compared with the prior art, the utility model has the advantages that:

[0015] 1. Due to the clamping mechanism, this utility model allows workers to easily adjust the distance between the fixed clamping plate and the movable clamping plate through the longitudinal telescopic rod, in conjunction with the control mechanism and the second connecting pipe. This makes it suitable for clamping and fixing rotational molding molds of different specifications. Furthermore, through the transverse telescopic rod, workers can easily adjust the distance between the clamping mechanism and the turntable in conjunction with the control mechanism. This changes the distance between two adjacent clamping mechanisms, thereby preventing collisions when clamping larger rotational molding molds inside adjacent clamping mechanisms.

[0016] 2. Due to the setting of the control mechanism, the longitudinal telescopic rod can be controlled independently by the second adjustment component in cooperation with the second connecting pipe, which facilitates the adjustment of the distance between the fixed clamping plate and the longitudinal telescopic rod. The length of several transverse telescopic rods can be controlled independently by the first adjustment component, thereby controlling the distance between adjacent clamping mechanisms. With the cooperation of the positioning ring, it is convenient for the staff to fix the device after completing the adjustment of the first and second adjustment components. Attached Figure Description

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

[0018] Figure 2 This is a front view of the present invention;

[0019] Figure 3 This is a schematic diagram of the control mechanism of this utility model;

[0020] Figure 4 This is a cross-sectional view of the front of the control mechanism of this utility model.

[0021] In the diagram: 1. Turntable; 2. Control mechanism; 21. First adjustment component; 211. Fixed sleeve; 212. First through hole; 213. First piston; 214. First movable sleeve; 215. First control frame; 22. Second adjustment component; 221. Second piston; 222. Second movable sleeve; 223. Connecting cavity; 224. Second through hole; 225. First connecting pipe; 226. Second control frame; 23. Positioning ring; 3. Lateral telescopic rod; 4. Clamping mechanism; 41. Rotary motor; 42. Fixed clamping plate; 43. Movable clamping plate; 44. Longitudinal telescopic rod; 5. Second connecting pipe. Detailed Implementation

[0022] With reference to the drawings of the embodiments of the present application, the technical solutions in the embodiments of the present application will be clearly and completely described. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments of the present application, all other embodiments obtained by those skilled in the art without creative efforts fall within the scope of the present application.

[0023] As shown in Figures 1 to 4 The utility model provides a rotarod machine rotating arm convenient to adjust, including rotating platform 1, the top of rotating platform 1 is installed with control mechanism 2, the side of control mechanism 2 is fixedly connected with several lateral telescopic links 3 of even distribution, and the other end of lateral telescopic link 3 extends to the outside of rotating platform 1 and is connected with clamping mechanism 4, and the second communication pipe 5 is connected between clamping mechanism 4 and control mechanism 2;

[0024] Clamping mechanism 4 includes the rotating motor 41 of fixed connection on the movable end of lateral telescopic link 3 far from the one side of rotating platform 1, and the output shaft of rotating motor 41 is fixedly connected with fixed clamping plate 42 on the end far from lateral telescopic link 3, and the fixed clamping plate 42 is provided with movable clamping plate 43 directly above, and the side close to rotating platform 1 is connected with longitudinal telescopic link 44 between the opposite faces of fixed clamping plate 42 and movable clamping plate 43, and the bottom of longitudinal telescopic link 44 is fixedly connected to the top of fixed clamping plate 42, and the top of movable end of longitudinal telescopic link 44 is fixedly connected to the bottom of movable clamping plate 43, and the opposite faces of fixed clamping plate 42 and movable clamping plate 43 are all rough structure, due to the setting of clamping mechanism 4, the distance between fixed clamping plate 42 and movable clamping plate 43 can be adjusted by longitudinal telescopic link 44 under the cooperation of control mechanism 2 and second communication pipe 5, so as to be applicable to the clamping fixation of different specifications of rotomolding mold, and the distance between clamping mechanism 4 and rotating platform 1 can be adjusted by lateral telescopic link 3 under the cooperation of control mechanism 2, so as to change the distance between adjacent two clamping mechanisms 4, thereby avoiding the impact when clamping larger specification rotomolding mold in adjacent clamping mechanism 4.

[0025] As shown in Figure 2 And Figure 3As shown, the regulating mechanism 2 comprises a first adjusting assembly 21 mounted on the top of the rotary table 1, a second adjusting assembly 22 sealingly sleeved in the first adjusting assembly 21, a plurality of positioning clamps 23 arranged in the first adjusting assembly 21 and the second adjusting assembly 22, and the first adjusting assembly 21 and the positioning clamps 23 are fixed by the second adjusting assembly 22. Due to the arrangement of the regulating mechanism 2, the longitudinal telescopic rods 44 can be controlled separately through the second adjusting assembly 22 under the cooperation of the second communication pipes 5, thereby facilitating the adjustment of the distance between the fixed clamping plates 42 and the longitudinal telescopic rods 44, and the length of the plurality of transverse telescopic rods 3 can be controlled separately through the first adjusting assembly 21, so as to control the distance between the adjacent clamping mechanisms 4, and the positioning clamps 23 can facilitate the fixing of the staff after the adjustment of the first adjusting assembly 21 and the second adjusting assembly 22.

[0026] As shown in Figure 3 and Figure 4 , the first adjusting assembly 21 comprises a fixed sleeve 211 fixedly mounted on the top of the rotary table 1, a plurality of first through holes 212 uniformly distributed and formed in the side bottom of the fixed sleeve 211, the plurality of first through holes 212 correspond to the transverse telescopic rods 3 one by one and are in communication with each other, and the other end of the first through hole 212 is in communication with the inside of the fixed sleeve 211.

[0027] As shown in Figure 3 and Figure 4 , the inside of the fixed sleeve 211 sealingly sleeves a first piston 213 located above the plurality of first through holes 212, the top of the first piston 213 is fixedly connected with a first movable sleeve 214, and the upper end of the first movable sleeve 214 extends above the fixed sleeve 211 and is fixedly connected with a first control frame 215.

[0028] As shown in Figure 3 and Figure 4 , the second adjusting assembly 22 comprises a second piston 221 sealingly sleeved in the inside of the first movable sleeve 214, the top of the second piston 221 is fixedly connected with a second movable sleeve 222, the inside of the second piston 221 is fixedly sleeved with a first communication pipe 225, and the upper end of the second movable sleeve 222 extends above the first communication pipe 225 and the first movable sleeve 214 and is fixedly connected with a second control frame 226.

[0029] As shown in Figure 2 and Figure 4 , the upper end of the second movable sleeve 222 is provided with a communication cavity 223, the upper end of the outer surface of the second movable sleeve 222 is connected with a plurality of second through holes 224 uniformly distributed, the plurality of second through holes 224 correspond to the second communication pipes 5 and the clamping mechanisms 4 one by one, and the two ends of the second communication pipes 5 are respectively in communication with the second through holes 224 and the longitudinal telescopic rods 44.

[0030] As shown in Figure 3And Figure 4 As shown, the lower end of the first communication pipe 225 is communicated with the inside of the first movable sleeve 214 and the bottom area of the second piston 221, and the upper end of the first communication pipe 225 is communicated with the inside of the communication cavity 223; due to the setting of the first communication pipe 225, it is ensured that the second piston 221 moving up and down can always press or extract the air in the inside of the first piston 213 and the first movable sleeve 214 into or out of the communication cavity 223, and then the adjustment of the plurality of clamping mechanisms 4 is facilitated through the second communication pipe 5.

[0031] As shown, Figure 3 And Figure 4 As shown, the opposite surfaces between the first movable sleeve 214 and the second movable sleeve 222 and the fixed sleeve 211 are provided with a positioning clasp 23, the positioning clasp 23 is composed of an inner clamping arc block and an outer clamping arc block which are mutually adhered, the inner clamping arc block is fixedly connected to the upper end of the inner wall of the fixed sleeve 211 and the first movable sleeve 214, the outer clamping arc block is fixedly connected to the outer surface of the second movable sleeve 222 and the first movable sleeve 214, the first movable sleeve 214 is clamped with the fixed sleeve 211 through the positioning clasp 23 therebetween, and the second movable sleeve 222 is clamped with the first movable sleeve 214 through the positioning clasp 23 therebetween.

[0032] The working principle and use process of the utility model are as follows:

[0033] According to the specification of the rotational molding mold, the distance between the fixed clamping plate 42 and the movable clamping plate 43 is adjusted, specifically, the first control frame 215 is held to be fixed, the second control frame 226 is rotated to drive the second movable sleeve 222 to rotate, the outer clamping arc block on the outer surface of the second movable sleeve 222 is mutually staggered with the inner clamping arc block on the inner wall of the first movable sleeve 214, then the second control frame 226 can be quickly moved up and down, the second movable sleeve 222 drives the second piston 221 to move up and down along the inside of the first movable sleeve 214, so that the extension and contraction of the plurality of longitudinal telescopic rods 44 can be controlled at the same time under the cooperation of the first communication pipe 225, the communication cavity 223, the second through hole 224 and the second communication pipe 5, so that the distance between the fixed clamping plate 42 and the movable clamping plate 43 can be adjusted, and then the first control frame 215 is reversely rotated to make the clamping arc blocks between the first movable sleeve 214 and the fixed sleeve 211 mutually adhere and clamp.

[0034] Then the length of the transverse telescopic rod 3 is adjusted according to the requirement, and it is ensured that the adjacent rotating motor 41 does not collide when driving the rotational mould through the respective corresponding fixed clamping plate 42 and fixed clamping plate 42, specifically, rotating the first control frame 215 to drive the first movable sleeve 214 to rotate, and then the outer clamping arc block on the outer surface of the first movable sleeve 214 is dislocated with the inner clamping arc block on the inner wall of the fixed sleeve 211, then the first piston 213 can be directly moved up and down through the first control frame 215, and then the extension and contraction of the transverse telescopic rod 3 are controlled through the cooperation of the fixed sleeve 211 and the first through hole 212, so that the distance between the adjacent clamping mechanisms 4 is changed, and then the clamping arc blocks between the second movable sleeve 222 and the first movable sleeve 214 are clamped with each other by reversely rotating the second control frame 226.

[0035] It should be noted that, in the present text, relational terms such as first and second and the like can only be used to distinguish one entity or action from another entity or action, without necessarily requiring or implying any such actual relationship or order between these entities or actions. Moreover, the terms "comprises", "comprising", or any other variations thereof are intended to cover non-exclusive inclusions, so that a process, method, article, or apparatus including a series of elements includes not only those elements, but also other elements not explicitly listed, or inherent to such a process, method, article, or apparatus.

[0036] Although the embodiments of the present application have been shown and described, it should be understood by those of ordinary skill in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present application, and the scope of the present application is defined by the appended claims and their equivalents.

Claims

1. A rotation arm of a rotational moulding machine, which facilitates adjustment, comprising a turntable (1), characterised in that: The top of the rotating platform (1) is provided with a regulating mechanism (2), the lateral surface of the regulating mechanism (2) is fixedly connected with a plurality of transverse telescopic rods (3) which are uniformly distributed, the other end of the transverse telescopic rod (3) extends to the outside of the rotating platform (1) and is connected with a clamping mechanism (4), and the clamping mechanism (4) and the regulating mechanism (2) are connected with a second communication pipe (5). The clamping mechanism (4) comprises a rotary motor (41) which is fixedly connected to the movable end of the transverse telescopic rod (3) away from the rotating platform (1), a fixed clamping plate (42) is fixedly connected to the end of the output shaft of the rotary motor (41) away from the transverse telescopic rod (3), an active clamping plate (43) is arranged above the fixed clamping plate (42), a longitudinal telescopic rod (44) is connected between the opposite surfaces of the fixed clamping plate (42) and the active clamping plate (43) and close to the rotating platform (1), the bottom of the longitudinal telescopic rod (44) is fixedly connected to the top of the fixed clamping plate (42), the top of the movable end of the longitudinal telescopic rod (44) is fixedly connected to the bottom of the active clamping plate (43), and the opposite surfaces of the fixed clamping plate (42) and the active clamping plate (43) are rough structures.

2. A rotationally adjustable rotational arm for a rotational arm rotomoulding machine as claimed in claim 1, wherein: The regulating mechanism (2) comprises a first adjusting assembly (21) which is arranged on the top of the rotating platform (1), a second adjusting assembly (22) is sealingly sleeved in the first adjusting assembly (21), and a plurality of positioning clamps (23) are arranged in the first adjusting assembly (21) and the second adjusting assembly (22).

3. A rotationally adjustable rotational arm for a rotational arm rotomoulding machine as claimed in claim 2, wherein: The first adjusting assembly (21) comprises a fixed sleeve (211) which is fixedly arranged on the top of the rotating platform (1), a plurality of first through holes (212) are arranged in the bottom of the lateral surface of the fixed sleeve (211) and are uniformly distributed, the first through holes (212) are in one-to-one correspondence with the transverse telescopic rods (3) and are in communication with each other, and the other end of the first through hole (212) is in communication with the inside of the fixed sleeve (211).

4. A rotationally adjustable rotational arm for a rotational arm rotomoulding machine as claimed in claim 3, wherein: The inside of the fixed sleeve (211) is sealingly sleeved with a first piston (213) which is arranged above the first through holes (212), the top of the first piston (213) is fixedly connected with a first movable sleeve (214), and the upper end of the first movable sleeve (214) extends above the fixed sleeve (211) and is fixedly connected with a first control frame (215).

5. A rotationally adjustable rotational arm for a rotational arm rotomoulding machine as claimed in claim 4, wherein: The second adjusting assembly (22) comprises a second piston (221) which is sealingly sleeved in the inside of the first movable sleeve (214), the top of the second piston (221) is fixedly connected with a second movable sleeve (222), the inside of the second piston (221) is sealingly sleeved with a first communication pipe (225), and the upper end of the second movable sleeve (222) extends above the first communication pipe (225) and the first movable sleeve (214) and is fixedly connected with a second control frame (226).

6. A rotationally adjustable rotational arm for a rotational arm rotomoulding machine as claimed in claim 5, wherein: The upper end of the second movable sleeve (222) is provided with a communicating cavity (223), and the upper end of the outer surface of the second movable sleeve (222) is connected with a plurality of second through holes (224) which are uniformly distributed, the second through holes (224) correspond to the second communicating pipes (5) and the clamping mechanism (4) one by one, and the two ends of the second communicating pipes (5) are communicated with the second through holes (224) and the longitudinal telescopic rod (44) respectively.

7. A rotationally adjustable rotational arm for a rotational arm rotomolding machine as defined in claim 5, wherein: The lower end of the first communicating pipe (225) is communicated with the inside of the first movable sleeve (214) and the bottom area of the second piston (221), and the upper end of the first communicating pipe (225) is communicated with the inside of the communicating cavity (223).

8. A rotationally adjustable rotational arm for a rotational arm rotomolding machine as defined in claim 5, wherein: The opposite surfaces between the first movable sleeve (214) and the second movable sleeve (222) and the fixed sleeve (211) are all provided with a positioning clasp (23), the positioning clasp (23) is composed of inner and outer clamping arc blocks which are mutually adhered, the inner clamping arc block is fixedly connected with the upper end of the inner wall of the fixed sleeve (211) and the first movable sleeve (214), the outer clamping arc block is fixedly connected with the outer surface of the second movable sleeve (222) and the first movable sleeve (214), the first movable sleeve (214) is clamped with each other through the positioning clasp (23) between the first movable sleeve (214) and the fixed sleeve (211), and the second movable sleeve (222) is clamped with each other through the positioning clasp (23) between the second movable sleeve (222) and the first movable sleeve (214).

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