Limiting device for preventing dislocation during mold closing of rotational molding mold

Abstract

The utility model relates to the technical field of rotational molding processing equipment, in particular to a limiting device for preventing malposition during mold closing of a rotational molding mold, which comprises a bottom plate, a rotational molding mechanism, an injection molding mechanism and a matching mechanism, wherein the rotational molding mechanism is arranged at the top of the bottom plate and is used for performing rotational molding work; the injection molding mechanism is arranged on the outer side of the rotational molding mechanism and used for fully injecting rotational molding materials into the rotational molding mechanism. The matching mechanism is arranged on the side face of the rotational molding mechanism and used for limiting during mold closing work. Through the arrangement of the rotational molding mechanism and the matching mechanism, the mold seat and the mold cover can be matched and connected together by rotating the threaded rod, the matching block and the matching piece can be pre-connected so as to avoid dislocation, the mold seat and the mold cover which are closed are driven by the motor to perform rotational molding work, and the rotational molding efficiency is improved by preventing dislocation and limiting. Materials can be uniformly distributed in the mold, product defects are reduced, the debugging time can be greatly shortened through effective limiting, and the production efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of rotational molding processing equipment, in particular to a limiting device for preventing misalignment during the mold closing of a rotational molding mold. Background Technique

[0002] A mold is various dies and tools used in industrial production to obtain required products by means of injection molding, blow molding, extrusion, die casting, forging, smelting, stamping, etc. In short, a mold is a tool for making formed articles. During the processing of rotational molding products, the rotational molding mold needs to be opened and separated to take out plastic products or add plastic raw materials, which is called mold unloading. Conversely, when the mold closes and tightens, it is called mold closing. After the mold is closed, a mechanical locking process needs to be carried out, and bolts and nuts are generally used for tightening operations. Even for molds using special jigs, a large number of bolts and nuts are also used for tightening to ensure the reliability of mold closing.

[0003] Chinese Patent with Publication No. CN220464504U discloses a rotational molding mold closing positioning device, including: a U-shaped frame I, and further including: two rotating rods movably embedded in opposite sides of the U-shaped frame I near the top, and a fixed sleeve is fixedly installed on the opposite sides of the two rotating rods; a circular ring movably embedded in the interior of the fixed sleeve, and a mold I is fixedly embedded in the interior of the circular ring. In the utility model, by starting the electric telescopic rod to extend, the mold II is driven to move towards one end, simultaneously the arc-shaped block moves towards one end, and simultaneously the slider is driven to move along the guide rod towards one end, so that the mold II fits with the mold installation sleeve, thereby enabling the rotational molding mold to be quickly closed and positioned. And under the limiting action of the arc-shaped block on the mold II, when the mold I rotates, the shaking can be reduced, thereby improving the stability of the rotational molding mold, reducing the labor intensity of workers, and thus improving the production efficiency.

[0004] However, the above disclosed solution has the following deficiencies: The existing rotational molding mold closing device cannot perform good limiting and anti-misalignment, which will result in the installation and cooperation between the mold base and the mold cover not being tight enough, thus affecting the rotational molding effect of the injection molding material. Summary of the Utility Model

[0005] The purpose of the utility model is to address the problem in the background technique that the mold base and the mold cannot be effectively limited, and to propose a limiting device for preventing misalignment during the mold closing of a rotational molding mold.

[0006] The technical solution of the utility model: A limiting device for preventing misalignment during the mold closing of a rotational molding mold includes a bottom plate; and further includes:

[0007] A rotational molding mechanism is arranged on the top of the bottom plate for performing rotational molding work;

[0008] The injection molding mechanism is arranged outside the rotational molding mechanism and is used to fill the rotational molding mechanism with rotational molding materials;

[0009] And the matching mechanism is arranged on the side of the rotational molding mechanism and is used for limiting during the mold closing operation.

[0010] Preferably, the rotational molding mechanism includes a circular ring track I, a rotating ring I, a mold base, insertion holes, and a rotational molding assembly;

[0011] The circular ring track I is arranged on the top of the base, the rotating ring I is rotatably arranged on the circular ring track I, the mold base is arranged on the side of the rotating ring I away from the circular ring track I, and the insertion holes are arranged on the side wall of the mold base;

[0012] The rotational molding assembly is arranged outside the mold base and is used to drive the mold base to rotate so as to complete the rotational molding work.

[0013] Preferably, the rotational molding assembly includes a fixing frame, a motor, a rotating shaft, a circular gear, and a matching block;

[0014] The fixing frame is arranged on the top of the base, the motor is arranged inside the fixing frame, the rotating shaft is arranged at the output end of the motor, the circular gear is arranged at the end of the rotating shaft away from the motor, the gear ring is arranged on the top of the circular gear and meshes with the circular gear, and the matching block is arranged outside the mold base.

[0015] Preferably, the injection molding mechanism includes a connecting pipe, an injection port, a connecting rod, a blocking block, a limiting plate, and a fixing block;

[0016] The connecting pipe is arranged on the socket, and the outer diameter of the connecting pipe is the same as the inner diameter of the socket, so they can be connected together. The injection port is arranged on the side of the connecting pipe, the blocking block is slidably arranged inside the connecting pipe, the connecting rod is arranged on the top of the blocking block, the limiting plate is arranged outside the connecting rod, and the fixing block is arranged on the top of the connecting rod.

[0017] Preferably, the matching mechanism includes a straight slide rail, a connecting frame I, and a limiting component;

[0018] The straight slide rail II is arranged on the top of the bottom plate, and the connecting frame I is arranged on the top of the bottom plate and is located on both sides of the straight slide rail;

[0019] The limiting component is slidably arranged on the straight slide rail and is used to move and be assembled with the rotational molding mechanism.

[0020] Preferably, the limiting component includes a connecting frame II, a circular ring track II, a rotating ring II, a mold cover, a mounting block, a matching part, a threaded rod, and a rotating rod;

[0021] The second connecting frame is slidably arranged on the straight slide rail. The second circular ring track is arranged on the top of the second connecting frame. The rotating ring is rotatably arranged on the second circular ring track. The mold cover is arranged on the side of the rotating ring away from the second circular ring track. The mounting block is arranged on the outer side of the mold cover. The fitting is arranged on the side of the mounting block. The threaded rod is threadedly arranged inside the first connecting frame. The rotating rod is arranged at one end of the threaded rod away from the second circular ring track.

[0022] Compared with the prior art, the utility model has the following beneficial technical effects:

[0023] 1. Through the setting of the injection molding mechanism, the connection between the mold base and the outside is controlled by moving the blocking block. The operation is simple and convenient. When injection molding is required, the blocking block is moved above the injection port. When rotational molding is required, the blocking block is moved below the injection port to block the jacking hole, so as to avoid the occurrence of gaps during the rotational molding process, resulting in unqualified shapes of the rotational molding.

[0024] 2. Through the setting of the rotational molding mechanism and the matching mechanism, rotating the threaded rod can connect the mold base and the mold cover together. The matching block and the fitting can be pre-connected to avoid dislocation. Then, the motor drives the mold base and the mold cover after clamping to perform rotational molding work. By preventing dislocation and performing limiting, it can ensure that the material is evenly distributed in the mold, reduce the occurrence of product defects, and at the same time ensure that the mold reaches the predetermined position when closed, so as to ensure that the product size meets the design requirements. And the effective limiting can greatly reduce the debugging time and improve production efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a schematic structural diagram of an embodiment of the utility model;

[0026] Figure 2 It is a schematic structural diagram of the rotational molding mechanism;

[0027] Figure 3 It is a schematic internal structure diagram of the rotational molding mechanism;

[0028] Figure 4 It is a schematic structural diagram of the injection molding mechanism;

[0029] Figure 5 It is a schematic structural diagram of the matching mechanism;

[0030] Figure 6 It is a schematic internal structure diagram of the matching mechanism.

[0031] Reference numerals: 1, bottom plate; 201, first circular ring track; 202, first rotating ring; 203, mold base; 204, jack; 205, gear ring; 206, fitting block; 207, circular gear; 208, rotating shaft; 209, fixing frame; 210, motor; 301, connecting pipe; 302, injection port; 303, connecting rod; 304, blocking block; 305, limiting plate; 306, fixing block; 401, straight slide rail; 402, first connecting frame; 403, threaded rod; 404, rotating rod; 405, second connecting frame; 406, second circular ring track; 407, second rotating ring; 408, mold cover; 409, mounting block; 410, fitting part. Detailed implementation mode

[0032] Embodiment 1

[0033] As Figures 1-4 shown, a limiting device for preventing misalignment during mold closing of a rotational molding mold proposed by the present utility model includes a bottom plate 1, a rotational molding mechanism, an injection molding mechanism, and a matching mechanism:

[0034] The rotational molding mechanism is arranged on the top of the bottom plate 1 and is used for rotational molding work;

[0035] The injection molding mechanism is arranged outside the rotational molding mechanism and is used for filling the rotational molding mechanism with rotational molding materials;

[0036] The matching mechanism is arranged on the side of the rotational molding mechanism and is used for limiting during mold closing work.

[0037] The rotational molding mechanism includes a first circular ring track 201, a first rotating ring 202, a mold base 203, a jack 204, and a rotational molding assembly;

[0038] The first circular ring track 201 is arranged on the top of the base, the first rotating ring 202 is rotatably arranged on the first circular ring track 201, the mold base 203 is arranged on the side of the first rotating ring 202 away from the first circular ring track 201, the jack 204 is arranged on the side wall of the mold base 203, and the jack 204 is used for mating connection with the injection molding mechanism;

[0039] The rotational molding assembly is arranged outside the mold base 203 and is used for driving the mold base 203 to rotate so as to complete the rotational molding work.

[0040] The rotational molding assembly includes a fixing frame 209, a motor 210, a rotating shaft 208, a circular gear 207, and a fitting block 206;

[0041] The fixing bracket 209 is arranged on the top of the base, the motor 210 is arranged inside the fixing bracket 209, the rotating shaft 208 is arranged at the output end of the motor 210, the circular gear 207 is arranged at the end of the rotating shaft 208 far from the motor 210, the gear ring 205 is arranged on the top of the circular gear 207 and meshes with the circular gear 207, the matching block 206 is arranged on the outside of the mold base 203, there are two matching blocks 206, and a tapered hole is arranged inside the matching block 206. When the motor 210 starts, it drives the rotating shaft 208 to rotate, the rotating shaft 208 drives the circular gear 207 to rotate, the circular gear 207 drives the gear ring 205 to rotate, and the inner side of the gear ring 205 is fixedly connected to the outside of the mold base 203. Therefore, the gear ring 205 can drive the mold base 203 to rotate on the circular ring track 201 through the rotating ring 202, so as to carry out rotational molding work.

[0042] The injection molding mechanism includes a connecting pipe 301, an injection port 302, a connecting rod 303, a blocking block 304, a limiting plate 305 and a fixing block 306;

[0043] The connecting pipe 301 is arranged on the socket, and the outer diameter of the connecting pipe 301 is the same as the inner diameter of the socket, so they can be connected together. The injection port 302 is arranged on the side of the connecting pipe 301. The blocking block 304 is slidably arranged inside the connecting pipe 301. The connecting rod 303 is arranged on the top of the blocking block 304. The limiting plate 305 is arranged on the outside of the connecting rod 303. The fixing block 306 is arranged on the top of the connecting rod 303. Hold the fixing block 306 and pull it upward, drive the blocking block 304 to move upward through the connecting pipe 301, so as to expose the socket. At this time, the rotational molding material can be injected into the mold base 203 through the injection port 302. When rotational molding is required after injection molding, press the fixing block 306 so that the blocking block 304 blocks the socket, avoiding material leakage during rotational molding and resulting in poor injection molding quality.

[0044] Embodiment 2

[0045] As Figures 5-6 shown, a limiting device for preventing misalignment during mold closing of a rotational molding mold proposed by the present utility model. Compared with Embodiment 1, the structure of the matching mechanism is introduced in detail in this embodiment:

[0046] The cooperating mechanism includes a linear slide rail 401, a first connecting frame 402, and a limiting component; the linear slide rail 401 is disposed on the top of the base plate 1, and the first connecting frame 402 is disposed on the top of the base plate 1 and on both sides of the linear slide rail 401; the limiting component is slidably disposed on the linear slide rail 401 and is used to move and cooperate with the rotational molding mechanism for installation. The limiting component includes a second connecting frame 405, a second circular ring track 406, a second rotating ring 407, a mold cover 408, a mounting block 409, a cooperating part 410, a threaded rod 403, and a rotating rod 404; the second connecting frame 405 is slidably disposed on the linear slide rail 401, the second circular ring track 406 is disposed on the top of the second connecting frame 405, the rotating ring is rotatably disposed on the second circular ring track 406, the mold cover 408 is disposed on the side of the rotating ring away from the second circular ring track 406, the mounting block 409 is disposed on the outer side of the mold cover 408, the cooperating part 410 is disposed on the side of the mounting block 409, the cooperating part 410 is conical in shape and has the same shape as the notch of the cooperating block 206, the threaded rod 403 is threadedly disposed inside the first connecting frame 402, the rotating rod 404 is disposed at the end of the threaded rod 403 away from the second circular ring track 406, by rotating the rotating rod 404 to rotate the threaded rod 403, the threaded rod 403 will move when rotating inside the first connecting frame 402, thereby pushing the mold cover 408 to move on the linear slide rail 401. During the movement, the cooperating part 410 will first contact the cooperating block 206, so as to be cooperatively installed together, making the positions of the mold base 203 and the mold cover 408 aligned. Continuing to move, an annular groove is provided at the end of the mold base 203, and an annular clamping block is provided at the end of the mold cover 408, so they can be installed together. Such installation can make the sealing effect between the mold base 203 and the mold cover 408 better.

[0047] In summary, when the utility model is in use, the threaded rod 403 is rotated by the rotating rod 404. The threaded rod 403 moves when rotating within the first connecting frame 402, thereby pushing the mold cover 408 to move on the straight slide rail 401. During the movement, the fitting 410 will first come into contact with the fitting block 206, and thus they are fitted and installed together, making the positions of the mold base 203 and the mold cover 408 aligned. Continuing to move, an annular groove is provided at the end of the mold base 203, and an annular clamping block is provided at the end of the mold cover 408. Therefore, they can be installed together, and such installation can make the sealing effect of the mold base 203 and the mold cover 408 better. After the installation is completed, hold the fixed block 306 and pull it upward, driving the plug block 304 to move upward through the connecting pipe 301, so as to expose the socket. At this time, the rotational molding material can be injected into the mold base 203 through the injection port 302. When rotational molding is required after the injection is completed, press the fixed block 306 to make the plug block 304 block the socket, and then start the motor 210. The motor 210 drives the rotating shaft 208 to rotate, the rotating shaft 208 drives the circular gear 207 to rotate, the circular gear 207 drives the gear ring 205 to rotate, and the gear ring 205 drives the mold base 203 and the mold cover 408 to rotate on the circular ring track 201 through the first rotating ring 202, thereby performing the rotational molding work.

[0048] The embodiments of the present utility model have been described in detail above in conjunction with the accompanying drawings. However, the present utility model is not limited thereto. Various changes can be made without departing from the spirit of the present utility model within the scope of knowledge possessed by those skilled in the art to which it belongs.

Claims

1. A limiting device for preventing misalignment during clamping of a rotational molding mold, comprising a bottom plate (1); characterized in that, It also includes: A rotational molding mechanism, arranged on the top of the bottom plate (1) for rotational molding work; An injection molding mechanism, arranged outside the rotational molding mechanism for filling the rotational molding mechanism with rotational molding materials; And a cooperation mechanism, arranged on the side of the rotational molding mechanism for limiting during the mold closing operation.

2. The limiting device for preventing misalignment during clamping of the rotational molding mold according to claim 1, characterized in that, The rotational molding mechanism includes a circular ring track one (201), a rotating ring one (202), a mold base (203), a jack (204) and a rotational molding assembly; The circular ring track one (201) is arranged on the top of the base, the rotating ring one (202) is rotatably arranged on the circular ring track one (201), the mold base (203) is arranged on the side of the rotating ring one (202) away from the circular ring track one (201), and the jack (204) is arranged on the side wall of the mold base (203); The rotational molding assembly is arranged outside the mold base (203) for driving the mold base (203) to rotate to complete the rotational molding work.

3. The limiting device for preventing misalignment during clamping of the rotational molding mold according to claim 2, characterized in that, The rotational molding assembly includes a fixing frame (209), a motor (210), a rotating shaft (208), a circular gear (207) and a cooperation block (206); The fixing frame (209) is arranged on the top of the base, the motor (210) is arranged inside the fixing frame (209), the rotating shaft (208) is arranged at the output end of the motor (210), the circular gear (207) is arranged at the end of the rotating shaft (208) away from the motor (210), a gear ring (205) is arranged on the top of the circular gear (207) and meshes with the circular gear (207), and the cooperation block (206) is arranged outside the mold base (203).

4. The limit device for preventing misalignment during clamping of the rotational molding mold according to claim 2, characterized in that The injection molding mechanism includes a connecting pipe (301), an injection port (302), a connecting rod (303), a blocking block (304), a limiting plate (305) and a fixing block (306); The connecting pipe (301) is arranged on the socket, the outer diameter of the connecting pipe (301) is the same as the inner diameter of the socket, so they can be connected together. The injection port (302) is arranged on the side of the connecting pipe (301), the blocking block (304) is slidably arranged inside the connecting pipe (301), the connecting rod (303) is arranged on the top of the blocking block (304), the limiting plate (305) is arranged outside the connecting rod (303), and the fixing block (306) is arranged on the top of the connecting rod (303).

5. The limit device for preventing misalignment during clamping of the rotational molding mold according to claim 1, wherein The cooperation mechanism includes a straight slide rail (401), a connecting frame one (402) and a limiting component; The straight slide rail (401) is arranged on the top of the bottom plate (1), and the connecting frame one (402) is arranged on the top of the bottom plate (1) and on both sides of the straight slide rail (401); The limiting component is slidably arranged on the straight slide rail (401) for moving to be cooperatively installed with the rotational molding mechanism.

6. The limit device for preventing misalignment during clamping of the rotational molding mold according to claim 5, characterized in that, The limiting component includes a connecting frame two (405), a circular ring track two (406), a rotating ring two (407), a mold cover (408), a mounting block (409), a cooperation part (410), a threaded rod (403) and a rotating rod (404); The second connecting frame (405) is slidably arranged on the straight slide rail (401), the second circular ring track (406) is arranged on the top of the second connecting frame (405), the rotating ring is rotatably arranged on the second circular ring track (406), the mold cover (408) is arranged on the side of the rotating ring away from the second circular ring track (406), the mounting block (409) is arranged on the outside of the mold cover (408), the fitting (410) is arranged on the side surface of the mounting block (409), the threaded rod (403) is threadedly arranged inside the first connecting frame (402), and the rotating rod (404) is arranged at one end of the threaded rod (403) away from the second circular ring track (406).

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