Refrigerator foaming jig side plate adjusting device

Abstract

The application provides a refrigerator foaming clamp side plate adjusting device, which comprises a base, a top frame, four corners of the base and four corners of the top frame are connected into a whole through vertical rods, a lifting frame, the lifting frame can be driven to ascend and descend along the axial direction of the vertical rods, two side plate assemblies which are opposite to each other, the bottom end of each side plate assembly is connected with the lifting frame, two top pushing locking assemblies are arranged on the top frame, each top pushing locking assembly is arranged at the top end of each side plate assembly, when the foaming mold in the lifting frame is in a foaming state, each top pushing locking assembly can apply force to the top end side of each side plate assembly which is away from each other to ensure that the side plate of each side plate assembly is in a vertical state. The application effectively prevents the deformation of the top end of the side plate assembly due to the lack of position constraint in the prior art, and further prevents the occurrence of the "horn mouth" defect of the refrigerator shell after foaming.

Description

Technical Field

[0001] This invention belongs to the field of foaming mold equipment design technology, specifically relating to a side plate adjustment device for a refrigerator foaming fixture. Background Technology

[0002] During the refrigerator foaming process, the side panels need to be tightly attached to the refrigerator shell and resist the enormous foaming force. Therefore, in actual use, the side panels often deform under the influence of the enormous foaming force, resulting in a "flared" defect in the refrigerator shell. This invention is proposed to prevent the aforementioned "flared" defect in the prior art. Summary of the Invention

[0003] Therefore, the technical problem to be solved by the present invention is to provide a refrigerator foaming fixture side panel adjustment device, which can solve the technical problem in the prior art that the side panel is deformed due to the foaming force, resulting in a "flared mouth" defect in the refrigerator shell.

[0004] To address the aforementioned problems, this invention provides a refrigerator foaming fixture side panel adjustment device, comprising a base and a top frame. The four corners of the base and the four corners of the top frame are connected as a whole by vertical rods. The device also includes a lifting frame, which can be driven to rise and fall along the axial direction of the vertical rods. Furthermore, it includes two side panel assemblies facing each other, with the bottom end of each side panel assembly connected to the lifting frame. The top frame is equipped with two push-locking components, each corresponding to the top end of each side panel assembly. When the foaming mold within the lifting frame is in a foaming state, each push-locking component can apply force to the opposite top sides of each side panel assembly to ensure that the side panels of each side panel assembly are in a vertical state.

[0005] In some embodiments, the push-locking assembly includes a pressure block support adapted to the width of the side plate, and each pressure block support has a plurality of pressure blocks spaced apart along its width on the side near the side plate. The push-locking assembly also includes a screw jack and a first drive motor capable of driving the extension and retraction of a first trapezoidal screw of the screw jack. The output end of the first trapezoidal screw of the screw jack is connected to the pressure block support, and the pressure block support is slidably connected to the top frame.

[0006] In some embodiments, the pressure block support is hinged to the output end of the first trapezoidal screw of the screw jack; and / or, two sets of screw jacks are simultaneously provided in each of the push-locking assemblies, the two sets of screw jacks are arranged parallel to each other along the width direction of the pressure block support, and the two sets of screw jacks share a first drive motor.

[0007] In some embodiments, the side of each pressure block facing the side plate is inclined so that the cross-section of the pressure block increases from bottom to top. The side plate assembly also includes a side plate bracket connected to the side plate near the push-locking assembly. The top of the side plate bracket is provided with a guide block near the push-locking assembly. The side of each guide block facing the push-locking assembly is inclined so that the cross-section of the guide block decreases from bottom to top. The inclination angle of the inclined surface of the pressure block is equal to the inclination angle of the inclined surface of the guide block. When the foaming mold in the lifting frame is in a foaming state, the inclined surfaces of each pressure block and each guide block are in contact with each other. And / or, the screw jack and the first drive motor are both hinged to the top frame.

[0008] In some embodiments, each of the side panel assemblies can be rotated by a predetermined angle in a direction away from each other under its own weight.

[0009] In some embodiments, guide plates are provided at both ends of the pressure block support. The side of the guide plate facing the side plate is inclined, and the inclined surface of the guide plate is below the height of the inclined surface of each pressure block. Guide wheels are provided on the guide blocks corresponding to the positions of each guide plate. During the lifting frame's ascent, the inclined surface of the guide plate can contact the guide wheels.

[0010] In some embodiments, the refrigerator foaming fixture side panel adjustment device further includes a side panel spacing adjustment device, and each side panel assembly further includes a sliding plate connected to the bottom end of each side panel bracket. The side panel spacing adjustment device can drive the sliding plates of the two side panel assemblies to move closer to or further away from each other in a straight line.

[0011] In some embodiments, the bottom end of each of the side plate supports is hinged to the slide plate via a first pivot, and the overall center of mass of the side plate assembly is located on the side of the first pivot away from the clamping surface of the side plate.

[0012] In some embodiments, the side plate support is provided with an outward turning angle limiting structure and / or an inward turning angle limiting structure.

[0013] In some embodiments, the side plate spacing adjustment device includes a second drive motor fixedly connected to the lifting frame and four second trapezoidal lead screws threadedly connected to the slide plate. Each second trapezoidal lead screw is pivotally supported on the lifting frame, and the four second trapezoidal lead screws are divided into two groups. The two second trapezoidal lead screws in each group are coaxially arranged, and a first bevel gear is provided on the two adjacent ends. The rotating shaft of the second drive motor is provided with two second bevel gears, and each second bevel gear meshes with the first bevel gear teeth of the two coaxially arranged second trapezoidal lead screws respectively.

[0014] The present invention provides a refrigerator foaming fixture side panel adjustment device, which achieves force locking at the top of the side panel assembly by setting a push locking component on the outer side of the top of the side panel assembly, ensuring that the top of the side panel assembly can effectively resist the foaming force and remain in a vertical state. This effectively prevents the occurrence of "flared mouth" defects in the refrigerator shell after foaming due to the lack of position constraint at the top of the side panel assembly in the prior art. Attached Figure Description

[0015] Figure 1 This is a three-dimensional structural schematic diagram of the refrigerator foaming fixture side plate adjustment device in an embodiment of the present invention;

[0016] Figure 2 yes Figure 1 A front view of the side panel adjustment device of the refrigerator foaming fixture;

[0017] Figure 3 yes Figure 1 A bottom view of the side panel adjustment device of the refrigerator foaming fixture (some components such as the top frame and the push-lock assembly are omitted in the figure);

[0018] Figure 4 yes Figure 1 A schematic diagram of the three-dimensional structure of the lifting frame after omitting some structural elements;

[0019] Figure 5 yes Figure 1 A three-dimensional structural diagram (exploded view) of the push-locking component at an angle;

[0020] Figure 6 yes Figure 1 A three-dimensional structural diagram (exploded view) of the push-locking component in the middle from another angle.

[0021] The reference numerals in the attached figures are as follows:

[0022] 2. Top frame; 3. Lifting frame; 4. Side plate assembly; 41. Side plate; 42. Side plate bracket; 421. Guide block; 422. Guide wheel; 423. First rotating shaft; 424. L-shaped limiting plate; 425. Limiting post; 43. Slide plate; 5. Push-locking assembly; 51. Pressure block support; 511. Guide plate; 52. Pressure block; 53. Screw jack; 531. First trapezoidal screw; 54. First drive motor; 55. Slider; 6. Side plate spacing adjustment device; 61. Second drive motor; 611. Rotating shaft; 612. Second bevel gear; 62. Second trapezoidal screw; 621. First bevel gear. Detailed Implementation

[0023] See also Figures 1 to 6As shown in the embodiment of the present invention, a refrigerator foaming fixture side panel adjustment device is provided, including a base (not shown in the figure, not indexed) and a top frame 2. The four corners of the base and the four corners of the top frame 2 are connected as a whole by vertical rods (not shown in the figure, not indexed) to form an integral frame structure. The refrigerator foaming fixture side panel adjustment device also includes a lifting frame 3, which can be driven (achieved by a corresponding driving lifting device, not shown in the figure) to rise and fall along the axial direction of the vertical rod, that is, the lifting frame 3 is slidably connected to the aforementioned vertical rod. The refrigerator foaming fixture side panel adjustment device also includes left and right... Two opposing side panel assemblies 4 form a limiting placement space for the refrigerator foaming mold between the two side panel assemblies 4. The bottom end of each side panel assembly 4 is connected to the lifting frame 3. Two push-locking assemblies 5 are provided on the top frame 2. Each push-locking assembly 5 is respectively provided corresponding to the top end of each side panel assembly 4. When the foaming mold in the lifting frame 3 is in the foaming state, each push-locking assembly 5 can apply force to the top side of each side panel assembly 4 that is opposite to each other (that is, the side of each side panel assembly 4 that is away from the refrigerator foaming mold) to ensure that the side panel 41 of each side panel assembly 4 is in a vertical state.

[0024] In this technical solution, a push-locking component 5 is set on the outer side of the top of the side panel assembly 4 (that is, the side of the side panel assembly 4 that is opposite to each other) to achieve force locking at the top of the side panel assembly 4, ensuring that the top of the side panel assembly 4 can effectively resist the foaming force and remain in a vertical state. This effectively prevents the occurrence of the "flared mouth" defect in the refrigerator shell after foaming due to the lack of position constraint at the top of the side panel assembly 4 in the prior art.

[0025] In some embodiments, the push-locking assembly 5 includes a pressure block support 51 adapted to the width of the side plate 41. Each pressure block support 51 has multiple pressure blocks 52 spaced apart along its width on the side closest to the side plate 41. The push-locking assembly 5 also includes a screw jack 53 and a first drive motor 54 capable of driving the extension and retraction of a first trapezoidal screw 531 of the screw jack 53. The output end of the first trapezoidal screw 531 of the screw jack 53 is connected to the pressure block support 51, and the pressure block support 51 is slidably connected to the top frame 2. Specifically, multiple sliders 55 are spaced apart on the top surface of the pressure block support 51. The slider 55 is connected to the slide rail (not shown in the figure) on the bottom side of the top frame 2. It is understood that a dovetail groove anti-detachment structure is also formed between the slide rail and the slider 55 to ensure that the two can only slide in the length direction of the slide rail. It is understood that the length direction of the aforementioned slide rail should be consistent with the extension direction of the first trapezoidal screw 531 of the screw jack 53. In order to facilitate the assembly and disassembly of the pressure block support 51 and the first trapezoidal screw 531, a corresponding connecting arm (not marked in the figure) can be formed on the side of the pressure block support 51 away from the side plate 41. This ensures that the pressure block support 51 and the first trapezoidal screw 531 have a large assembly and operation space.

[0026] In this technical solution, on the one hand, a screw jack 53 equipped with a first trapezoidal screw 531 is used to adjust the position of the pressure block support 51 in the linear direction. The trapezoidal teeth of the first trapezoidal screw 531 can form a self-locking mechanism for the position of the pressure block support 51, thereby ensuring that the side plate 41 can be reliably and stably in the target position (the side plate 41 is in a vertical state). On the other hand, multiple spaced pressure blocks 52 are provided on the side of the pressure block support 51 facing the side plate 41. By pressing and limiting the side plate assembly 4 with the pressure blocks 52, the flatness requirements of the pressure block support 51 can be significantly reduced, and the component processing cost can be reduced.

[0027] Furthermore, the push-locking component 5 in this invention, while reliably pushing the side plate component 4 to prevent deformation of its top, can also adjust the spacing of the pressure blocks 52 on both sides of the push-locking component 5 by adjusting the extension and retraction of the first trapezoidal screw 531 of the aforementioned screw jack 53, thus making it suitable for different refrigerator shell models and sizes. In a preferred embodiment, the first drive motor 54 in each push-locking component 5 is independently controlled to flexibly adjust the relative position of the push-locking components 5 on both sides and the side plate component 4, so as to completely eliminate the "flared mouth" phenomenon of the refrigerator shell after the final foaming is completed. It is worth emphasizing that the push-locking component 5 of this invention can also control the push-locking component 5 to move closer to or further away from the side plate component 4 by a corresponding displacement when the side plate component 4 is deformed and the positional deviation is large, to ensure that the deformed side plate component 4 is in a vertical state, thereby realizing the deformation compensation function of the push-locking component 5.

[0028] In some embodiments, the pressure block support 51 is hinged to the output end of the first trapezoidal lead screw 531 of the screw jack 53. Hinging the pressure block support 51 to the output end of the first trapezoidal lead screw 531 reduces the installation accuracy requirements of their relative positions and also prevents jamming caused by component deformation during long-term operation.

[0029] See details Figure 5 and Figure 6 As shown, each of the push-locking components 5 is equipped with two sets of screw jacks 53. The two sets of screw jacks 53 are arranged parallel to each other along the width direction of the pressure block support 51, and the two sets of screw jacks 53 share a first drive motor 54. The input shafts of the two sets of screw jacks 53 and the output shaft of the first drive motor 54 are coaxially connected by a coupling (not labeled in the figure). The aforementioned first drive motor 54 and the two sets of screw jacks 53 are all hinged to the top frame 2 to prevent transmission jamming.

[0030] In this technical solution, the two sets of screw jacks 53 in each jacking and locking assembly 5 share a first drive motor 54, which simplifies the structural design and reduces design and production costs.

[0031] In some implementation methods, see details. Figure 2As shown, the side of each pressure block 52 facing the side plate 41 is inclined so that the cross-section of the pressure block 52 increases from bottom to top. The side plate assembly 4 also includes a side plate bracket 42 connected to the side plate 41 near the push-lock assembly 5. The top of the side plate bracket 42 is provided with a guide block 421 near the push-lock assembly 5. The side of each guide block 421 facing the push-lock assembly 5 is inclined so that the cross-section of the guide block 421 decreases from bottom to top. The inclination angle of the inclined surface of the pressure block 52 is equal to the inclination angle of the inclined surface of the guide block 421. When the foaming mold in the lifting frame 3 is in a foaming state, the inclined surfaces of each pressure block 52 and each guide block 421 are in contact with each other.

[0032] In this technical solution, when the foaming mold is in the foaming state, the contact of the inclined surfaces of the pressure block 52 and the guide block 421 respectively realizes the reliable pressing and locking of the push locking component 5 on the side plate component 4. At the same time, the vertical state of the side plate component 4 can be adaptively adjusted by adjusting the relative position of the vertical height of the two inclined surfaces. The aforementioned relative position of the vertical height can be achieved by lifting the lifting frame 3. The higher the height of the lifting frame 3, the closer the side plate component 4 is to the foaming mold under the cooperation of the two inclined surfaces. Conversely, the lower the height of the lifting frame 3, the closer the side plate component is to the foaming mold and the more outward it is to the side away from the foaming mold.

[0033] In some embodiments, each of the side panel assemblies 4 can be rotated by a preset angle in a direction away from each other under its own weight. In one specific embodiment, the preset angle is approximately 3°.

[0034] In this technical solution, after the foaming operation is completed, the lifting frame 3 is controlled to descend. During its descent, when the aforementioned push-locking component 5 is disengaged from the side plate component 4, since the pressure block 52 of the push-locking component 5 no longer applies force to the outer top of the side plate component 4, the side plate component 4 will flip outward at a preset angle under its own weight and disengage from the foaming mold between the two side plate components 4. It is not necessary to control the side plate components 4 on both sides of the foaming mold to move away from each other as in the prior art, which further simplifies the structure and reduces design and production costs.

[0035] In some embodiments, guide plates 511 are provided at both ends of the pressure block support 51. The side of the guide plate 511 facing the side plate 41 is inclined, and the inclined surface of the guide plate 511 is below the height of the inclined surface of each pressure block 52. Guide wheels 422 are provided on the guide blocks 421 corresponding to the positions of each guide plate 511. During the upward movement of the lifting frame 3, the inclined surface of the guide plate 511 can contact the guide wheel 422. It is understood that when the aforementioned pressure block 52 contacts the inclined surface of the guide block 421... Ideally, there should be a gap between the guide wheel 422 and the guide plate 511, i.e., no contact. This facilitates the pushing and locking assembly 5 to apply pushing force to the side plate assembly 4, preventing the aforementioned pushing force from damaging the guide wheel 422 (the guide wheel 422 can be implemented using a bearing). In a preferred embodiment, the inclination angle of the inclined surface of the guide plate 511 is greater than the inclination angle of the inclined surface of the pressure block 52. In a specific embodiment, the inclination angle of the inclined surface of the guide plate 511 is 25°, while the inclination angle of the inclined surface of the pressure block 52 is 15°.

[0036] In this technical solution, guide plates 511 with inclined surfaces are further provided at both ends of the length of the pressure block support 51. The height of the inclined surface of the guide plate 511 is below the height of the inclined surface of the pressure block 52, and the inclination angle of the inclined surface of the guide plate 511 is greater than the inclination angle of the inclined surface of the pressure block 52. In this way, during the lifting process of the lifting frame 3, the guide plate 511 can contact the guide wheel 422 on the side plate assembly 4 before the pressure block 52, thereby guiding and straightening the tilted and overturned side plate assembly, and finally ensuring that the inclined surfaces of the pressure block 52 and the guide block 421 fit together, thereby improving the stability of the structure.

[0037] In some embodiments, the refrigerator foaming fixture side panel adjustment device further includes a side panel spacing adjustment device 6, and each side panel assembly 4 further includes a sliding plate 43 connected to the bottom end of each side panel bracket 42. The side panel spacing adjustment device 6 can drive the sliding plates 43 of the two side panel assemblies 4 to move closer to or further away from each other in a straight line, thereby realizing the automatic adjustment of the spacing (i.e., clamping spacing) between the two side panel assemblies 4. This enables the refrigerator foaming fixture side panel adjustment device of the present invention to be applicable to the foaming preparation of refrigerator shells of more different models and sizes, further reducing production costs.

[0038] See details Figure 3As shown, in some embodiments, the side plate spacing adjustment device 6 includes a second drive motor 61 fixedly connected to the lifting frame 3 and four second trapezoidal lead screws 62 threadedly connected to the slide plate 43. It is understood that the aforementioned slide plate 43 can form its own internal thread that is threadedly connected to the trapezoidal lead screws, or it can be fixedly connected to the lead screws, that is, the lead screw nut matching the trapezoidal lead screw is connected to the slide plate 43 as a part of the slide plate 43. Each of the second trapezoidal lead screws 62 is pivotally supported (through a support with bearings) on the lifting frame 3, and the four second trapezoidal lead screws 62 are divided into two groups. The two second trapezoidal lead screws 62 in each group are coaxially arranged, and a first bevel gear 621 is provided on the two adjacent ends. Two second bevel gears 612 are provided on the rotating shaft 611 of the second drive motor 61. Each second bevel gear 612 meshes with the first bevel gear 621 teeth of the two groups of coaxially arranged second trapezoidal lead screws 62.

[0039] In this technical solution, multiple second trapezoidal lead screws 62 drive the slide plate 43 to reciprocate linearly, thereby achieving reliable adjustment of the spacing between each side plate assembly 4. Simultaneously, the self-locking of the trapezoidal lead screws ensures the reliable and stable position of the bottom end of each side plate assembly 4. Through the meshing of multiple first bevel gears 621 and second bevel gears 612, orthogonal transmission between the rotating shaft 611 of the second drive motor 61 and each second trapezoidal lead screw 62 is achieved, resulting in a more compact and rational structural design. It is worth emphasizing that the side plate assembly 4's design, which allows it to fold outwards under its own weight, means that the side plate spacing adjustment device 6 is only used to achieve stepless adjustment of the spacing between the two side plate assemblies 4, without requiring operation to move the two side plate assemblies 4 away from the foaming mold for demolding. Therefore, the second trapezoidal lead screw 62 of the side plate spacing adjustment device 6 in this invention experiences less wear and has a longer service life. It is worth noting that the side panel spacing adjustment device 6 in this invention is achieved through the transmission between the second drive motor 61 and each of the second trapezoidal lead screws 62. This results in higher adjustment accuracy compared to the belt drive, chain drive, and manual drive methods used in the prior art to adjust the spacing (width) of the side panel assembly 4. In a specific embodiment, the width adjustment range of the side panel spacing adjustment device 6 should be between 463mm and 900mm to maximize its applicability to various refrigerator models.

[0040] See details Figure 4As shown, in some embodiments, the bottom end of each side panel bracket 42 is hinged to the slide plate 43 via a first pivot 423. The overall center of mass (i.e., the center of gravity) of the side panel assembly 4 is located on the side of the first pivot 423 away from the clamping surface of the side panel 41 (i.e., the side that fits against the foaming mold). In a specific embodiment, the aforementioned side panel bracket 42 is an L-shaped structure, wherein the free end of the bottom cross arm of the L-shaped structure is rotatably connected to the slide plate 43 via the first pivot 423, while other main components of the side panel assembly 4, such as the side panel... 41 is located on the vertical arm of the L-shaped structure. In a specific embodiment, the top surface of the slide plate 43 is an inclined surface that slopes downwards in the direction away from the foaming mold, while the bottom surface of the bottom horizontal arm of the L-shaped structure is a plane. Since the overall center of mass of the side plate assembly 4 is located outside the clamping surface of the first rotating shaft 423 away from the side plate 41, the side plate assembly 4 will be turned outwards at a certain angle around the first rotating shaft 423, thereby achieving the purpose of disengaging the side plate assembly 4 from the foaming mold without the need for position driving of the side plate assembly 4.

[0041] See also Figure 4 In a preferred embodiment, each side panel assembly 4 is provided with three side panel supports 42 spaced apart along the width direction of the side panel 41. In some embodiments, the two side panel supports 42 located on the outermost side of the width of the side panel 41 are respectively provided with an outward turning angle limiting structure (not indicated in the figure) and / or an inward turning angle limiting structure (not indicated in the figure). The outward turning angle limiting structure can limit and adjust the angle at which the side panel assembly 4 turns outward by its own weight, while the inward turning angle limiting structure can limit the turning angle of the side panel assembly 4 when it approaches the foaming mold once due to the pushing force or uncontrollable external force.

[0042] In one Figure 4 In the embodiment shown, the aforementioned outward turning angle limiting structure is implemented by an L-shaped limiting plate 424 connected to the bottom cross arm of the side plate bracket 42. The relative height of the L-shaped limiting plate 424 on the vertical arm of the side plate bracket 42 can be used to adjust the descent height of the outer end of the side plate bracket 42, thereby adjusting the outward turning angle of the entire side plate assembly 4. The aforementioned inward turning angle limiting structure can be implemented by a limiting post 425 detachably connected to the side plate bracket 42. Specifically, a corresponding limiting seat (not indicated in the figure) is provided on the slide plate 43, and a limiting groove is provided on the limiting seat. The limiting post 425 can be inserted into the aforementioned limiting groove.

[0043] It is understood that the aforementioned first drive motor 54 and second drive motor 61 should be equipped with corresponding position feedback structures such as gratings for displacement control of the aforementioned first trapezoidal lead screw 531 and second trapezoidal lead screw 62, respectively. As this is a conventional design in the industry, this invention does not provide special protection for it, and therefore will not elaborate further.

[0044] It will be readily understood by those skilled in the art that the aforementioned advantageous methods can be freely combined and superimposed without conflict.

[0045] The above are merely preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention should be included within the protection scope of the present invention. The above are merely preferred embodiments of the present invention. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the technical principles of the present invention, and these improvements and modifications should also be considered within the protection scope of the present invention.

Claims

1. A refrigerator foaming fixture side panel adjustment device, comprising a base and a top frame (2), wherein the four corners of the base and the four corners of the top frame (2) are connected as a whole by vertical rods, and further comprising a lifting frame (3), wherein the lifting frame (3) can be driven to rise and fall along the axial direction of the vertical rods, characterized in that, It also includes two side plate assemblies (4) facing each other, the bottom end of each side plate assembly (4) is connected to the lifting frame (3), and two push-locking assemblies (5) are provided on the top frame (2). Each push-locking assembly (5) is respectively provided corresponding to the top end of each side plate assembly (4). When the foaming mold in the lifting frame (3) is in the foaming state, each push-locking assembly (5) can apply force to the top side surfaces of each side plate assembly (4) that are opposite to each other to ensure that the side plates (41) of each side plate assembly (4) are in a vertical state. The side plate assembly (4) further includes a side plate bracket (42) connected to the side plate (41) near the push-locking assembly (5); the side plate assembly (4) further includes a sliding plate (43) connected to the bottom end of each side plate bracket (42); the bottom end of each side plate bracket (42) and the sliding plate (43) are hinged via a first pivot (423), the overall center of mass of the side plate assembly (4) is located on the side of the first pivot (423) away from the clamping surface of the side plate (41), and each side plate assembly (4) can rotate at a preset angle in a direction away from each other under its own weight.

2. The refrigerator foaming fixture side plate adjustment device according to claim 1, characterized in that, The push-locking assembly (5) includes a pressure block support (51) adapted to the width of the side plate (41). Each pressure block support (51) has multiple pressure blocks (52) spaced apart along its width on the side of the side plate (41) near the side plate (41). The push-locking assembly (5) also includes a screw jack (53) and a first drive motor (54) capable of driving the extension and retraction of the first trapezoidal screw (531) of the screw jack (53). The output end of the first trapezoidal screw (531) of the screw jack (53) is connected to the pressure block support (51), and the pressure block support (51) is slidably connected to the top frame (2).

3. The refrigerator foaming fixture side plate adjustment device according to claim 2, characterized in that, The pressure block support (51) is hinged to the output end of the first trapezoidal screw (531) of the screw jack (53); and / or, two sets of screw jacks (53) are simultaneously provided in each of the push locking components (5), the two sets of screw jacks (53) are arranged parallel to each other along the width direction of the pressure block support (51), and the two sets of screw jacks (53) share a first drive motor (54).

4. The refrigerator foaming fixture side plate adjustment device according to claim 2, characterized in that, Each of the pressure blocks (52) has an inclined surface on the side facing the side plate (41) so that the cross-section of the pressure block (52) increases from bottom to top. The top of the side plate bracket (42) is provided with a guide block (421) on the side near the push-lock assembly (5). Each of the guide blocks (421) has an inclined surface on the side facing the push-lock assembly (5) so that the cross-section of the guide block (421) decreases from bottom to top. The inclination angle of the inclined surface of the pressure block (52) is equal to the inclination angle of the inclined surface of the guide block (421). When the foaming mold in the lifting frame (3) is in a foaming state, the inclined surfaces of each of the pressure blocks (52) and each of the guide blocks (421) are in contact with each other.

5. The refrigerator foaming fixture side plate adjustment device according to claim 2, characterized in that, The screw jack (53) and the first drive motor (54) are both hinged to the top frame (2).

6. The refrigerator foaming fixture side plate adjustment device according to claim 4, characterized in that, Guide plates (511) are provided at both ends of the pressure block support (51). The side of the guide plate (511) facing the side plate (41) is inclined, and the inclined surface of the guide plate (511) is below the height of the inclined surface of each pressure block (52). The guide block (421) corresponding to the position of each guide plate (511) is provided with a guide wheel (422). During the lifting frame (3) rising, the inclined surface of the guide plate (511) can contact the guide wheel (422).

7. The refrigerator foaming fixture side plate adjustment device according to claim 4, characterized in that, It also includes a side plate spacing adjustment device (6), which can drive the sliding plates (43) of the two side plate assemblies (4) to move closer to or further away from each other in a straight line.

8. The refrigerator foaming fixture side plate adjustment device according to claim 7, characterized in that, The side plate bracket (42) is provided with an outward turning angle limiting structure and / or an inward turning angle limiting structure.

9. The refrigerator foaming fixture side plate adjustment device according to claim 7, characterized in that, The side plate spacing adjustment device (6) includes a second drive motor (61) fixedly connected to the lifting frame (3) and four second trapezoidal screws (62) threadedly connected to the slide plate (43). Each second trapezoidal screw (62) is pivotally supported on the lifting frame (3), and the four second trapezoidal screws (62) are divided into two groups. The two second trapezoidal screws (62) in each group are coaxially arranged, and a first bevel gear (621) is provided on the two adjacent ends. Two second bevel gears (612) are provided on the rotating shaft (611) of the second drive motor (61). Each second bevel gear (612) meshes with the first bevel gear (621) of the two coaxially arranged second trapezoidal screws (62).

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