An accurate material blocking device for a refrigerator foaming mold

Abstract

The present invention relates to the technical field of refrigerator mold plugging materials, and in particular to a precise plugging device for a refrigerator foaming mold, including a mold body and a material injection port opened on the mold body. A plugging mechanism for plugging the material injection port is arranged on the mold body. The plugging mechanism includes a positioning cross bar arranged at the top of the mold body and a movable positioning plate slidably arranged on the positioning cross bar. One end of the bottom of the movable positioning plate is provided with a limiting vertical rod, and a plugging block matching the material injection port is arranged at the bottom of the limiting vertical rod. A connecting component for connecting with the limiting vertical rod is arranged on the plugging block, and a positioning component for fixing the limiting vertical rod is arranged on the movable positioning plate. The operation of the present invention is simple and convenient, which is beneficial to making the precise plugging device more precise in plugging the material injection port of the mold, improving the efficiency of the precise plugging device in plugging the material injection port, and effectively avoiding the situation that it is more troublesome for the plugging device to adjust the position of the whole device for material injection ports at different positions.

Description

Technical Field

[0001] The present invention relates to the technical field of refrigerator mold plugging materials, and particularly to a precise plugging device for a refrigerator foaming mold. Background Art

[0002] During the foaming process of a refrigerator, the mixed foaming material is injected into the inner side of the refrigerator foaming mold from the injection port at the top of the foaming mold, and then the injection port is blocked for foaming operation. The prior art with the publication number CN213919287U proposes a plugging device for a refrigerator foaming mold, including a plugging structure, a resilient clamping structure, a mold, and a fixing strip. The bottom of the fixing strip is fixedly connected to the top of the mold, the upper part of the fixing strip is bolted with the plugging structure, and the left side of the plugging structure is horizontally fixedly connected with the resilient clamping structure. The plugging structure includes a hydraulic cylinder, a piston, and a sliding groove block. However, for the injection ports at different positions, this plugging device needs to adjust the position of the entire device, and the operation steps are relatively cumbersome and complex. It is not only difficult to achieve precise plugging but also affects the efficiency of blocking the injection port, and cannot meet the actual use requirements. Summary of the Invention

[0003] Aiming at the deficiencies of the prior art, the present invention provides a precise plugging device for a refrigerator foaming mold, which solves the problem that the existing plugging device needs to adjust the position of the entire device for injection ports at different positions, resulting in cumbersome and complex operation steps.

[0004] To solve the above technical problems, the present invention provides the following technical solution: A precise plugging device for a refrigerator foaming mold, including a mold body and an injection port opened on the mold body, and a plugging mechanism for blocking the injection port is provided on the mold body;

[0005] The plugging mechanism includes a positioning cross bar arranged on the top of the mold body and a movable positioning plate slidably arranged on the positioning cross bar. One end of the bottom of the movable positioning plate is provided with a limiting vertical rod, and a plugging block matching the injection port is arranged at the bottom of the limiting vertical rod. A connecting component for connecting with the limiting vertical rod is arranged on the plugging block. A positioning component for fixing the limiting vertical rod is arranged on the movable positioning plate. The plugging mechanism further includes an adjusting component arranged at the bottom of the positioning cross bar.

[0006] Furthermore, the positioning component includes a movable clamping plate arranged on the movable positioning plate and limiting blocks arranged on both sides of one end of the movable clamping plate and fixed to the movable positioning plate. A fixed horizontal axis penetrating through the movable clamping plate and rotatably connected to it is fixed between the two limiting blocks. A first limiting slot is opened at the bottom of the movable clamping plate, and a second limiting slot is opened on the movable positioning plate. A limiting clamping seat with a top matching the first limiting slot is arranged inside the second limiting slot. The top of the limiting vertical rod penetrates through the movable positioning plate and is fixedly connected to the limiting clamping seat.

[0007] Further, a first fastening knob is provided at the top of the other end of the movable clamping plate. A strip-shaped card slot is formed at the top of the positioning cross bar. The first fastening knob penetrates through the movable clamping plate and is threadedly connected to the movable positioning plate and extends to contact the bottom wall of the strip-shaped card slot.

[0008] Further, the connection assembly includes a limit nut seat fixedly arranged at the top of the plugging block and threadedly connected to the bottom of the limit vertical rod. Limit convex blocks are fixed on both sides of the top of the limit nut seat. A second fastening knob is threadedly connected to one side of the limit convex block. One end of the second fastening knob penetrates through the limit convex block and contacts the side surface of the limit vertical rod.

[0009] Further, the adjustment assembly includes movable vertical rods arranged at both ends of the bottom of the positioning cross bar, and limit sliding grooves formed at both ends of the bottom of the positioning cross bar and slidably connected to the tops of the movable vertical rods respectively. An movable inclined frame and an movable inclined rod which cross each other are arranged at the bottom of the positioning cross bar, and the movable inclined rod is slidably connected inside the movable inclined frame. A limit horizontal shaft is rotatably arranged between the movable inclined frame and the movable inclined rod, and a locking assembly is provided at one end of the limit horizontal shaft for fixing the movable inclined frame and the movable inclined rod.

[0010] Further, a limit stop block which contacts the top of the mold body is fixed on one side of the movable vertical rod. Limit sliding seats are hinged to both ends of the movable inclined frame and the movable inclined rod. Limit vertical grooves which are slidably connected to the limit sliding seats are formed on the movable vertical rod.

[0011] Further, the locking assembly includes symmetrically arranged limit square grooves formed on one side of the movable inclined frame, and a fixed vertical rod arranged at one end of the limit horizontal shaft. Limit clamping rods which penetrate through one end of the limit horizontal shaft and match the limit square grooves are fixed at both ends of the fixed vertical rod.

[0012] Further, a threaded hole is formed at one end of the limit horizontal shaft. A limit bolt is arranged in the middle of one side of the fixed vertical rod. The limit bolt penetrates through the fixed vertical rod and is threadedly connected to the threaded hole.

[0013] By means of the above technical solution, the present invention provides a precise material plugging device for a refrigerator foaming mold, which has at least the following beneficial effects:

[0014] 1. The present invention precisely plugs the injection port on the mold body by setting a material plugging mechanism. By adjusting the positions of the positioning cross bar and the movable positioning plate, the position of the plugging block is adjusted accordingly. The injection port on the mold body is plugged by the plugging block. The operation is simple and convenient, which is beneficial to making the precise material plugging device more precise in plugging the injection port of the mold, improving the efficiency of the precise material plugging device in plugging the injection port, and effectively avoiding the situation that it is more troublesome to adjust the position of the whole device for the injection ports at different positions by the material plugging device.

[0015] 2. The present invention fixes the movable positioning plate on the positioning crossbar and fixes the limiting vertical rod by setting a positioning component. By rotating the movable clamping plate around the fixed horizontal axis until it contacts the movable positioning plate, the movable clamping plate presses the limiting clamping seat located at the top of the limiting vertical rod. At the same time, the movable clamping plate and the movable positioning plate are fixed on the positioning crossbar together by the first fastening knob, making it more convenient to fix the movable clamping plate and the movable positioning plate, and improving the stability of the limiting vertical rod during fixation.

[0016] 3. The present invention adjusts the distance between the two movable vertical rods by setting an adjusting component. According to the width of the mold body, by rotating the movable inclined rod and the movable inclined frame around the limiting horizontal axis by a certain angle, the included angle between the movable inclined rod and the movable inclined frame increases or decreases, and the length of its straight line also changes. At the same time, it drives the limiting sliding seat to slide inside the limiting vertical groove, thereby adjusting the distance between the two movable vertical rods. The two movable vertical rods are clamped and fixed on the mold body for plugging operation, enabling the device to be applicable to mold bodies of different widths and expanding the application range of the precise plugging device. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The drawings described herein are used to provide a further understanding of the present application, form a part of the present application, and the schematic embodiments and descriptions thereof are used to explain the present application, and do not constitute an improper limitation to the present application. In the drawings:

[0018] Figure 1 is the overall structural schematic diagram of the present invention;

[0019] Figure 2 is the structural schematic diagram of the mold body of the present invention;

[0020] Figure 3 is the side three-dimensional sectional view of the present invention;

[0021] Figure 4 is the front partial three-dimensional sectional view of the present invention;

[0022] Figure 5 is the exploded schematic diagram of the positioning component and the connection component of the present invention;

[0023] Figure 6 is the exploded schematic diagram of the adjusting component of the present invention;

[0024] Figure 7 is Figure 3 the enlarged structural schematic diagram of part A;

[0025] Figure 8 is Figure 6 the enlarged structural schematic diagram of part B.

[0026] In the figure: 1. Mold body; 2. Injection port; 3. Plugging mechanism; 31. Positioning cross bar; 32. Movable positioning plate; 33. Limiting vertical bar; 34. Plugging block; 35. Connection assembly; 351. Limiting nut seat; 352. Limiting convex block; 353. Tightening knob II; 36. Positioning assembly; 361. Movable clamping plate; 362. Limiting block; 363. Fixed horizontal shaft; 364. First limiting card slot; 365. Second limiting card slot; 366. Limiting card seat; 367. Tightening knob I; 368. Strip-shaped card slot; 37. Adjusting assembly; 371. Movable vertical bar; 372. Limiting sliding groove; 373. Movable inclined frame; 374. Movable inclined bar; 375. Limiting horizontal shaft; 376. Limiting stop block; 377. Limiting sliding seat; 378. Limiting vertical slot; 379. Locking assembly; 3791. Limiting square slot; 3792. Fixed vertical bar; 3793. Limiting clamping bar; 3794. Threaded hole; 3795. Limiting bolt. Detailed implementation manner

[0027] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0028] Embodiment 1

[0029] Figures 1-5 This is an embodiment of the present invention: A precise plugging device for a refrigerator foaming mold includes a mold body 1 and an injection port 2 opened on the mold body 1. A plugging mechanism 3 for plugging the injection port 2 is provided on the mold body 1. The mold body 1 is the refrigerator foaming mold, which belongs to the prior art and is the common knowledge of those skilled in the art. Its internal structure will not be described in detail in this solution.

[0030] The plugging mechanism 3 is used to precisely plug the injection port 2 on the mold body 1. By adjusting the positions of the positioning cross bar 31 and the movable positioning plate 32, the plugging block 34 is adjusted to match the injection port 2, and the injection port 2 on the mold body 1 is plugged by the plugging block 34, which is beneficial to making the precise plugging device more precise when plugging the mold injection port 2.

[0031] The material blocking mechanism 3 includes a positioning cross bar 31 arranged at the top of the mold body 1, and a movable positioning plate 32 slidably arranged on the positioning cross bar 31. One end of the bottom of the movable positioning plate 32 is provided with a limiting vertical rod 33, and the bottom of the limiting vertical rod 33 is provided with a blocking block 34 matching the material injection port 2. The cross section of the blocking block 34 is an inverted "convex" shape, providing stronger sealing performance for the material injection port 2. A connecting component 35 for connecting with the limiting vertical rod 33 is arranged on the blocking block 34, a positioning component 36 for fixing the limiting vertical rod 33 is arranged on the movable positioning plate 32, and the material blocking mechanism 3 further includes an adjusting component 37 arranged at the bottom of the positioning cross bar 31.

[0032] The positioning component 36 includes a movable clamping plate 361 arranged on the movable positioning plate 32, and limiting blocks 362 arranged on both sides of one end of the movable clamping plate 361 and fixed to the movable positioning plate 32. A fixed horizontal shaft 363 passing through the movable clamping plate 361 and rotatably connected to it is fixed between the two limiting blocks 362. A first limiting card slot 364 is formed at the bottom of the movable clamping plate 361, a second limiting card slot 365 is formed on the movable positioning plate 32, a limiting card seat 366 with a top matching the first limiting card slot 364 is arranged inside the second limiting card slot 365. Both sides of the limiting card seat 366 match the first limiting card slot 364 and the second limiting card slot 365 respectively. The cross-sectional area of the limiting card seat 366 is equal to the cross-sectional area of the second limiting card slot 365 and less than the cross-sectional area of the first limiting card slot 364. When the movable clamping plate 361 rotates to be in full contact with the movable positioning plate 32, the inner wall of the first limiting card slot 364 is in contact with the top surface of the movable clamping plate 361. The top of the limiting vertical rod 33 passes through the movable positioning plate 32 and is fixedly connected to the limiting card seat 366. A first tightening knob 367 is arranged at the top of the other end of the movable clamping plate 361. A strip-shaped card slot 368 is formed at the top of the positioning cross bar 31. The first tightening knob 367 passes through the movable clamping plate 361, is threadedly connected to the movable positioning plate 32, and extends to be in contact with the bottom wall of the strip-shaped card slot 368.

[0033] The limiting vertical rod 33 is located at the bottom of one end of the movable positioning plate 32, and the other end of the movable positioning plate 32 can slide freely on the positioning cross bar 31. By adjusting the position of the movable positioning plate 32, the position of the limiting vertical rod 33 at the bottom of one end of the movable positioning plate 32 can be adjusted, so that the blocking block 34 at the bottom of the limiting vertical rod 33 corresponds to the position of the material injection port 2. The first tightening knob 367 is fixed to the movable clamping plate 361 and the movable positioning plate 32 through threaded connection. The bottom of the first tightening knob 367 is in contact with and abuts against the bottom wall of the strip-shaped card slot 368, thereby fixing the movable positioning plate 32 on the positioning cross bar 31, and thus fixing the movable positioning plate 32.

[0034] Specifically, the connecting component 35 includes a limit nut seat 351 fixedly arranged on the top of the plugging block 34 and threadedly connected to the bottom of the limit vertical rod 33. On both sides of the top of the limit nut seat 351, limit bumps 352 are fixedly arranged. One side of the limit bump 352 is threadedly connected with a second fastening knob 353. One end of the second fastening knob 353 penetrates through the limit bump 352 and contacts the side surface of the limit vertical rod 33. The limit nut seat 351 at the bottom of the limit vertical rod 33 and the top of the plugging block 34 are fixed by threaded connection, so as to facilitate plugging blocks 34 of different sizes. In order to adapt to the injection ports 2 of different sizes on the mold body 1, the application range of the device is expanded. At the same time, when the second fastening knob 353 penetrates through one side of the limit bump 352 and contacts the side surface of the limit vertical rod 33, the limit vertical rod 33 is further fixed, improving the stability of the fixation between the limit vertical rod 33 and the limit nut seat 351.

[0035] The specific implementation process of this embodiment is as follows: According to the longitudinal position of the injection port 2, move the movable positioning plate 32, and move the limit vertical rod 33 at the bottom of one end of the movable positioning plate 32 to a position directly above the injection port 2, so that the positions of the plugging block 34 and the injection port 2 correspond to each other. The injection port 2 is plugged by the plugging block 34. At the same time, the bottom of the limit card seat 366 is snapped into the second limit card slot 365 on the movable positioning plate 32. Then, rotate the movable card plate 361 around the fixed horizontal axis 363 until it contacts the movable positioning plate 32. The second limit card slot 365 at the bottom of the movable card plate 361 is snapped onto the limit card seat 366 at the top of the limit vertical rod 33, clamping the limit card seat 366 on the movable positioning plate 32. Then, tighten the first fastening knob 367. The first fastening knob 367 is fixed to the movable card plate 361 and the movable positioning plate 32 by threaded connection. The bottom of the first fastening knob 367 contacts and abuts against the bottom wall of the strip-shaped card slot 368, thereby fixing the movable positioning plate 32 on the positioning cross bar 31, and thus fixing the movable positioning plate 32.

[0036] Embodiment 2

[0037] Reference Figure 6 - Figure 8, which is basically the same as the first embodiment, and what is more optimized is that the adjusting assembly 37 includes movable vertical rods 371 arranged at both ends of the bottom of the positioning cross bar 31, and limit sliding grooves 372 opened at both ends of the bottom of the positioning cross bar 31 and slidably connected to the tops of the movable vertical rods 371 respectively. A limit stop block 376 in contact with the top of the mold body 1 is fixed on one side of the movable vertical rod 371. A non-slip pad is fixedly adhered to the position where the bottom side of the movable vertical rod 371 contacts the mold body 1 to increase the friction between the movable vertical rod 371 and the mold body 1. At the same time, the limit stop block 376 is beneficial to providing a supporting effect for the movable vertical rod 371 on the mold body 1, making the two movable vertical rods 371 clamp the mold body 1 more stably. An activity inclined frame 373 and an activity inclined rod 374 which cross each other are arranged at the bottom of the positioning cross bar 31, and the activity inclined rod 374 is slidably connected inside the activity inclined frame 373. Limit sliding seats 377 are hinged to both ends of the activity inclined frame 373 and the activity inclined rod 374. Limit vertical grooves 378 slidably connected to the limit sliding seats 377 are opened on the movable vertical rod 371. A limit horizontal shaft 375 is rotatably arranged between the activity inclined frame 373 and the activity inclined rod 374. The activity inclined frame 373 and the activity inclined rod 374 can freely rotate a certain angle around the limit horizontal shaft 375. A locking assembly 379 for fixing the activity inclined frame 373 and the activity inclined rod 374 is arranged at one end of the limit horizontal shaft 375.

[0038] The diameters of both ends of the limit horizontal shaft 375 are larger than the diameter of the middle part thereof. The limit horizontal shaft 375 penetrates through the middle positions of the activity inclined rod 374 and the activity inclined frame 373, so that the activity inclined rod 374 and the activity inclined frame 373 can freely rotate around the limit horizontal shaft 375. When the activity inclined rod 374 and the activity inclined frame 373 rotate a certain angle around the limit horizontal shaft 375, the included angle between the activity inclined rod 374 and the activity inclined frame 373 increases or decreases, and the length of its straight line also changes. At the same time, it drives the limit sliding seat 377 to slide inside the limit vertical groove 378, thereby adjusting the distance between the two movable vertical rods 371, so that the device can be applicable to mold bodies 1 with different widths.

[0039] Further, the locking assembly 379 includes limiting square grooves 3791 symmetrically arranged on one side of the movable inclined frame 373, and fixed vertical rods 3792 arranged at one end of the limiting horizontal shaft 375. Limiting clamping rods 3793 that penetrate through one end of the limiting horizontal shaft 375 and match the limiting square grooves 3791 are fixed at both ends of the fixed vertical rod 3792. A threaded hole 3794 is formed at one end of the limiting horizontal shaft 375. A limiting bolt 3795 is arranged in the middle of one side of the fixed vertical rod 3792. The limiting bolt 3795 penetrates through the fixed vertical rod 3792 and is threadedly connected to the threaded hole 3794. After adjusting the distance between the two movable vertical rods 371, the limiting clamping rods 3793 at both ends of the fixed vertical rod 3792 are respectively inserted into the inner sides of the two limiting square grooves 3791. The fixed vertical rod 3792 contacts the limiting horizontal shaft 375. Then, the limiting bolt 3795 is rotated. The limiting bolt 3795 penetrates through the fixed vertical rod 3792 and is fixed through threaded connection with the threaded hole 3794 on the limiting horizontal shaft 375. The fixed vertical rod 3792 fixes the limiting horizontal shaft 375 and the movable inclined frame 373, making the movable inclined frame 373 unable to rotate, thereby fixing the movable inclined frame 373 and the movable inclined rod 374. The two movable vertical rods 371 stably clamp the mold body 1.

[0040] When the injection port 2 on the mold body 1 of the present invention is blocked, first, according to the horizontal position of the injection port 2 and the actual width of the mold body 1, the movable inclined rod 374 and the movable inclined frame 373 are rotated. The movable inclined rod 374 and the movable inclined frame 373 rotate around the limiting horizontal shaft 375 by a certain angle. The movable inclined rod 374 and the movable inclined frame 373 respectively drive the limiting sliding seats 377 at their two ends to move. The limiting sliding seats 377 slide inside the limiting vertical grooves 378. At the same time, the limiting sliding seats 377 push the movable vertical rods 371 to move. The tops of the movable vertical rods 371 slide inside the limiting sliding grooves 372. Since the included angle between the movable inclined rod 374 and the movable inclined frame 373 increases or decreases, the length of its straight line also changes. The two movable vertical rods 371 are adjusted to correspond to the actual width of the mold body 1. The two movable vertical rods 371 are clamped on the mold body 1. The limiting blocks 376 at the bottoms of the movable vertical rods 371 contact the top of the mold body 1.

[0041] Then, the limiting clamping rods 3793 at both ends of the fixed vertical rod 3792 are respectively inserted into the inner sides of the two limiting square grooves 3791. The fixed vertical rod 3792 is pushed to make it contact the limiting horizontal shaft 375. Then, the limiting bolt 3795 is rotated. The limiting bolt 3795 penetrates through the fixed vertical rod 3792 and is fixed through threaded connection with the threaded hole 3794 on the limiting horizontal shaft 375. The fixed vertical rod 3792 fixes the limiting horizontal shaft 375 and the movable inclined frame 373, making the movable inclined frame 373 unable to rotate, fixing the movable inclined frame 373 and the movable inclined rod 374, thereby fixing the two movable vertical rods 371 and the positioning cross bar 31 together.

[0042] Then, according to the longitudinal position of the charging port 2, slide the movable positioning plate 32 on the positioning cross bar 31, and move the limiting vertical rod 33 at the bottom of one end of the movable positioning plate 32 to a position directly above the charging port 2, so that the blocking block 34 at the bottom of the limiting vertical rod 33 corresponds to the position of the charging port 2. Then, push the limiting card seat 366 downward. The limiting card seat 366 pushes the limiting vertical rod 33 downward. The limiting vertical rod 33 pushes the blocking block 34 at its bottom downward into the inner side of the charging port 2 to block the charging port 2. At the same time, the bottom of the limiting card seat 366 is clamped into the second limiting card slot 365 on the movable positioning plate 32. Then, rotate the movable clamping plate 361 around the fixed horizontal axis 363 to make it contact with the movable positioning plate 32. The second limiting card slot 365 at the bottom of the movable clamping plate 361 is clamped on the limiting card seat 366 at the top of the limiting vertical rod 33 to clamp the limiting card seat 366 on the movable positioning plate 32. Then, tighten the first tightening knob 367. The first tightening knob 367 is fixed by threaded connection with the movable clamping plate 361 and the movable positioning plate 32. The bottom of the first tightening knob 367 contacts and abuts against the bottom wall of the strip-shaped card slot 368, and the movable positioning plate 32 is fixed on the positioning cross bar 31. In this way, the movable positioning plate 32 is fixed, so that the blocking block 34 at the bottom of the limiting vertical rod 33 is more stable when blocking the charging port 2.

[0043] It should be noted that in this article, the terms "include", "comprise" or any other variant thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements not only includes those elements but also includes other elements not expressly listed, or further includes elements inherent to such process, method, article or device.

[0044] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A precise material blocking device for a refrigerator foaming mold, comprising a mold body (1) and a material injection port (2) formed on the mold body (1), characterized in that: A material blocking mechanism (3) for blocking the material injection port (2) is provided on the mold body (1); The material blocking mechanism (3) includes a positioning cross bar (31) arranged at the top of the mold body (1), and a movable positioning plate (32) slidably arranged on the positioning cross bar (31). One end of the bottom of the movable positioning plate (32) is provided with a limiting vertical rod (33), and a blocking block (34) matching the material injection port (2) is arranged at the bottom of the limiting vertical rod (33). A connecting component (35) for connecting with the limiting vertical rod (33) is arranged on the blocking block (34). A positioning component (36) for fixing the limiting vertical rod (33) is arranged on the movable positioning plate (32). The material blocking mechanism (3) further includes an adjusting component (37) arranged at the bottom of the positioning cross bar (31); The positioning component (36) includes a movable clamping plate (361) arranged on the movable positioning plate (32), and limiting blocks (362) arranged on both sides of one end of the movable clamping plate (361) and fixed to the movable positioning plate (32). A fixed horizontal shaft (363) passing through the movable clamping plate (361) and rotatably connected to it is fixed between the two limiting blocks (362). A first limiting card slot (364) is formed at the bottom of the movable clamping plate (361), and a second limiting card slot (365) is formed on the movable positioning plate (32). A limiting card seat (366) with a top matching the first limiting card slot (364) is arranged inside the second limiting card slot (365). The top of the limiting vertical rod (33) passes through the movable positioning plate (32) and is fixedly connected to the limiting card seat (366). A first tightening knob (367) is arranged at the top of the other end of the movable clamping plate (361). A strip-shaped card slot (368) is formed at the top of the positioning cross bar (31). The first tightening knob (367) passes through the movable clamping plate (361) and is threadedly connected to the movable positioning plate (32) and extends to contact the bottom wall of the strip-shaped card slot (368).

2. The precise plugging device for a refrigerator foaming mold according to claim 1, characterized in that: The connecting component (35) includes a limiting nut seat (351) fixedly arranged at the top of the blocking block (34) and threadedly connected to the bottom of the limiting vertical rod (33). Limiting convex blocks (352) are fixed on both sides of the top of the limiting nut seat (351). A second tightening knob (353) is threadedly connected to one side of the limiting convex block (352). One end of the second tightening knob (353) passes through the limiting convex block (352) and contacts the side surface of the limiting vertical rod (33).

3. The precise material blocking device for a refrigerator foaming mold according to claim 1, characterized in that: The adjusting assembly (37) includes movable vertical rods (371) arranged at both ends of the bottom of the positioning cross bar (31), and limiting sliding grooves (372) opened at both ends of the bottom of the positioning cross bar (31) and slidably connected to the tops of the movable vertical rods (371) respectively. A movable inclined frame (373) and a movable inclined rod (374) which cross each other are arranged at the bottom of the positioning cross bar (31), and the movable inclined rod (374) is slidably connected inside the movable inclined frame (373). A limiting horizontal shaft (375) is rotatably arranged between the movable inclined frame (373) and the movable inclined rod (374), and a locking assembly (379) for fixing the movable inclined frame (373) and the movable inclined rod (374) is arranged at one end of the limiting horizontal shaft (375).

4. The precise material blocking device for a refrigerator foaming mold according to claim 3, characterized in that: A limiting stop block (376) which is in contact with the top of the mold body (1) is fixed on one side of the movable vertical rod (371). Limiting sliding seats (377) are hinged to both ends of the movable inclined frame (373) and the movable inclined rod (374), and limiting vertical grooves (378) which are slidably connected to the limiting sliding seats (377) are opened on the movable vertical rod (371).

5. The precise material blocking device for a refrigerator foaming mold according to claim 3, wherein: The locking assembly (379) includes symmetrically arranged limiting square grooves (3791) opened on one side of the movable inclined frame (373), and a fixed vertical rod (3792) arranged at one end of the limiting horizontal shaft (375). Limiting clamping rods (3793) which penetrate through one end of the limiting horizontal shaft (375) and are matched with the limiting square grooves (3791) are fixed to both ends of the fixed vertical rod (3792).

6. The precise material blocking device for a refrigerator foaming mold according to claim 5, characterized in that: A threaded hole (3794) is opened at one end of the limiting horizontal shaft (375), and a limiting bolt (3795) is arranged in the middle of one side of the fixed vertical rod (3792). The limiting bolt (3795) penetrates through the fixed vertical rod (3792) and is threadedly connected to the threaded hole (3794).

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