Expansion supporting structure of foaming mold

Abstract

The utility model discloses an expansion supporting structure of a foaming mold, which comprises a main body, a plurality of supporting rods and a plurality of supporting rods, the side plates are arranged outside at least one side of the moving direction of the main body and are arranged in a linkage moving manner along with the movement of the main body part through a first connecting assembly; and the top plate is arranged on a moving path outside the main body, is arranged in a linkage manner along with the movement of the side plate through the second connecting assembly, and is arranged in a linkage moving manner through the movement of the side plate. The side plates are driven to move through linkage of the main body part, the top plate is further driven to move by movement of the side plates, and a piece to be supported can be supported during foaming. In the process, the air cylinder and other power units only need to drive the main body part to move and do not need to directly drive the top plate, direct association between the top plate and the air cylinder is structurally isolated, the problem that the top plate is insufficiently supported due to the fact that the size of the air cylinder is limited by limited space is solved, and even if a large area needs to be supported, the top plate cannot be supported. The top plate can still achieve a good supporting effect.

Description

Technical Field

[0001] The utility model belongs to the technical field of molds, and in particular relates to an expansion and contraction supporting structure of a foaming mold. Background Art

[0002] Take the refrigerator as an example. Since the refrigerator needs to maintain a constant low temperature, the space between the refrigerator compartment, freezer compartment and the outer shell is filled with foaming agent. The foaming agent is a thermal insulation material that will expand rapidly after filling and fill the pores inside.

[0003] In the prior art, the outer shell is fixed by the foaming mold during the expansion process of the foaming agent. Since the refrigerator has a false beam structure, in order to ensure smooth demoulding, the Chinese patent with application number 201910835425.7 provides a refrigerator false middle beam fully automatic shrink foaming mold, including a hoisting frame, a front section of a freezing mold core, a false middle beam shrinking device, a rear section of a freezing mold core and a refrigeration mold core. A first cylinder is provided on the base, and slide rails are provided on both sides of the first cylinder. A mobile frame is provided on the slide rail, and a second cylinder and an inclined groove plate are provided on the mobile frame. The inclined groove plate is provided with a side plate telescopic column moving inclined groove and a top plate telescopic column moving groove. The side plates are connected by the side plate telescopic columns on both sides of the mobile frame. The top of the mobile frame is symmetrically provided with a top plate telescopic column and a connecting rod, and the top of the top plate telescopic column is connected to the top plate. Since the top plate is directly supported by the second cylinder, as the support area increases, the foaming force also increases. At this time, the requirements for the output force and air pressure of the second cylinder are more stringent. When the specifications of the second cylinder cannot be adjusted due to space limitations, insufficient support force will occur and the product will be deformed.

[0004] In view of this, the present utility model is proposed. Utility Model Content

[0005] The technical problem to be solved by the utility model is to overcome the deficiencies of the prior art, and the purpose is to provide an expansion and contraction support structure for a foaming mold, which drives the side plates by means of a linkage movement of the main body part, and further drives the top plate to move when the side plates are displaced. The direct connection between the top plate and the cylinder is structurally isolated, and the problem of insufficient support of the top plate caused by the limitation of the cylinder size due to limited space is overcome. Even if a larger area needs to be supported, the top plate of the utility model can still provide a good supporting effect.

[0006] In order to solve the above technical problems, the basic concept of the technical solution adopted by the utility model is: to provide an expansion and contraction support structure of a foaming mold, including:

[0007] The main body is partially reciprocatably arranged;

[0008] A side plate is arranged outside at least one side of the moving direction of the main body, and is arranged to move in conjunction with the movement of the main body through a first connecting component;

[0009] The top plate is arranged on the moving path outside the main body and is arranged in linkage with the movement of the side plates through the second connecting component. The top plate is arranged to move in linkage with the movement of the side plates.

[0010] Furthermore, the first connecting component is a first sliding pair, the second connecting component is a second sliding pair, and the sliding directions of the first sliding pair and the second sliding pair are inclined relative to the moving direction of the side plate.

[0011] Furthermore, the sliding directions of the first sliding pair and the second sliding pair are inclined and extended in opposite directions in the vertical direction, the side panels are moved outward in conjunction with the downward movement of the main body, and the top panel is moved upward in conjunction with the outward movement of the side panels.

[0012] Further, the main body includes a main body and a push plate, the push plate is vertically movable on one side of the main body, the side plate is laterally limited and moved on the main body, and the first sliding pair is linked and arranged between the push plate and the side plate.

[0013] Furthermore, the first sliding pair comprises:

[0014] A first connecting portion, disposed on the push plate;

[0015] The first connecting member is protrudingly arranged on the side plate, and one end of the first connecting member is arranged to slide back and forth within a preset track of the first connecting portion.

[0016] Further, the first connecting portion includes a first guide groove and a first limiting groove, the first guide groove is arranged on the push plate and the first guide groove is arranged obliquely downward from one end of the push plate close to the side plate to the other end away from the side plate; the first limiting groove is arranged to extend vertically upward from the upper end of the first guide groove;

[0017] The first connecting member extends from the side plate to the outside of one side of the push plate, and an end portion thereof is slidably embedded in the first guide groove.

[0018] Furthermore, the second sliding pair comprises:

[0019] A second connecting portion protruding from the side plate;

[0020] The second connecting member is protrudingly arranged on the top plate, and one end of the second connecting member is arranged to slide back and forth within a preset track of the second connecting portion.

[0021] Further, a third connecting component is provided between the side plate and the top of the main body, and a limiter is provided on the main body in a transversely slidable manner through the third connecting component;

[0022] The third connection component comprises:

[0023] A third connecting portion, disposed at the bottom of the second connecting portion;

[0024] The third connecting member is arranged at the upper end of the main body and is slidably matched with the third connecting part in the form of a guide groove and a guide rail.

[0025] Furthermore, a second guide groove is extended from the second connection portion, and the second guide groove is arranged along the first connection portion from one end close to the side plate to the other end away from the side plate and tilted upward;

[0026] The second connecting member extends from the bottom of the top plate to the outside of one side of the second connecting portion, and an end portion is embedded in the second guide groove.

[0027] Furthermore, a first limiting groove is provided on the second connecting portion, which is connected to the upper end of the second guide groove, and the second limiting groove is extended in the transverse direction. When the top plate moves upward to the extreme position, the second connecting member is embedded in the second limiting groove.

[0028] After adopting the above technical scheme, the utility model has the following beneficial effects compared with the prior art.

[0029] (1) The utility model drives the side panels to move through the linkage of the movement of the main body, and further transfers kinetic energy to the top panel, which drives the top panel to move. In this process, the power unit such as the cylinder only needs to drive the main body to move, and does not need to directly drive the top panel, thereby isolating the direct connection between the top panel and the cylinder in structure, overcoming the problem of insufficient support for the top panel caused by the limitation of the cylinder size due to limited space. Even if a larger area needs to be supported, the top panel of the utility model can still play a good supporting effect.

[0030] (2) In the utility model, the upper end of the second guide groove is also connected to a second limit groove extending laterally. When the top plate moves up to the limit position, the second connecting member is embedded in the second limit groove. Even if the supporting area is large, the top plate can still be maintained at the limit position under the limiting action of the second limit groove, and the supporting effect can be guaranteed.

[0031] (3) In the utility model, when the main board is displaced, the side boards can be driven to move through the first connecting assembly, rather than the cylinder directly driving the side boards to move. Therefore, the utility model cuts off the connection between the cylinder and the side boards, avoiding the limitation of the cylinder specifications on the supporting effect of the side boards. Even when the supporting area is large, the side boards of the utility model can still play a good supporting effect.

[0032] (4) In the utility model, the upper end of the first limit groove is also connected to the first limit groove extending in the vertical direction. When the side panel moves outward to the limit position, the first connecting member is embedded in the first limit groove. Even if the supporting area is large, the side panel can still be maintained at the limit position under the limiting action of the first limit groove, and the supporting effect can be guaranteed.

[0033] The specific implementation of the utility model is further described in detail below with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] The accompanying drawings are part of the present invention and are used to provide a further understanding of the present invention. The schematic embodiments of the present invention and their descriptions are used to explain the present invention, but do not constitute an improper limitation on the present invention. Obviously, the accompanying drawings described below are only some embodiments. For ordinary technicians in this field, other accompanying drawings can be obtained based on these accompanying drawings without creative work. In the accompanying drawings:

[0035] Figure 1 This is a schematic diagram of the expansion and contraction support structure of a foaming mold of the utility model when it is retracted;

[0036] Figure 2 It is a schematic diagram of an expansion and contraction support structure of a foaming mold of the utility model when it is expanded.

[0037] In the figure: 1. main body; 101. second guide column; 102. first guide groove; 103. third connecting member; 104. first limiting groove; 105. limiting hole; 106. main body; 107. push plate; 2. side plate; 201. first connecting member; 202. first guide column; 203. first support bar; 3. second connecting part; 301. second guide groove; 302. second limiting groove; 303. third connecting part; 4. top plate; 401. second connecting member; 402. second support bar; 5. first power unit; 6. second power unit.

[0038] It should be noted that these drawings and textual descriptions are not intended to limit the conceptual scope of the present invention in any way, but rather to illustrate the concept of the present invention for those skilled in the art by referring to specific embodiments. DETAILED DESCRIPTION

[0039] In order to make the purpose, technical solutions and advantages of the embodiments of the utility model clearer, the technical solutions in the embodiments will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. The following embodiments are used to illustrate the utility model but are not used to limit the scope of the utility model.

[0040] In the description of the present invention, it should be noted that the terms "upper", "lower", "front", "back", "left", "right", "vertical", "inside", "outside", etc. indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, they cannot be understood as limitations on the present invention.

[0041] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0042] like Figure 1 to Figure 2 As shown, the utility model provides an expansion and contraction support structure of a foaming mold, comprising a main body 1, a side plate 2 and a top plate 4, wherein the side plate 2 and the top plate 4 can be used to support the supported part. The expansion and contraction support structure can provide sufficient support force for the foaming of the supported part when expanding, and can facilitate demoulding of the supported part when shrinking.

[0043] Part of the structure of the main body 1 can be reciprocated. The top plate 4 is arranged on the moving path outside the main body 1. The side plate 2 is arranged outside at least one side of the moving direction of the main body 1. That is, the top plate 4 is arranged above the main body 1, and the side plate 2 is arranged on at least one side of the main body 1.

[0044] The side panels 2 are arranged to move in conjunction with the movement of the main body 1 through a first connecting assembly. The first connecting assembly is arranged between the moving part of the main body 1 and the side panels 2. The top panel 4 is movably connected to the side panels 2 through a second connecting assembly, and the top panel 4 is arranged to move in conjunction with the movement of the side panels 2. The top panel 4 moves along the moving direction of the main body 1.

[0045] The utility model drives the side plate 2 to move through the linkage of the first connecting component when the main body 1 moves under the drive of the cylinder, and further drives the top plate 4 to move when the side plate 2 moves, so as to support the support member when it is foamed. In this process, the power unit such as the cylinder only needs to drive the main body 1 to move, and does not need to directly drive the top plate 4, thereby isolating the direct connection between the top plate 4 and the cylinder in structure, overcoming the problem of insufficient support of the top plate 4 caused by the limitation of the cylinder size due to limited space, and even if a larger area needs to be supported, the top plate 4 of the utility model can still play a good supporting effect.

[0046] That is, the top plate 4 moves vertically in conjunction with the vertical movement of the main body 1 through the first connecting component, the side plate 2, and the second connecting component in sequence. The position of the side plate 2 and the top plate 4 can be adjusted by adjusting the position of the main body 1, thereby providing sufficient supporting strength for the foaming of the supported part, or allowing the expansion and contraction support structure to be retracted and disassembled from the supported part.

[0047] Preferably, the utility model includes a first power unit 5 and a second power unit 6. The first power unit 5 is connected to the moving part of the main body 1 by transmission, and is used to drive the main body 1 to move in the vertical direction. The second power unit 6 is connected to the fixed part of the main body 1 by transmission, and is used to drive the whole structure to enter or leave the range of the supported parts. The first power unit 5 and the second power unit 6 are cylinders.

[0048] The member to be supported is a box body, preferably a box body of a household appliance, such as a box body of a refrigerator.

[0049] The top plate 4 may move in the same direction as the moving part of the main body 1 , or the top plate 4 may move in the opposite direction as the moving part of the main body 1 .

[0050] The side panels 2 are arranged to move laterally in conjunction with the vertical movement of the main body 1 , and the top panel 4 is arranged to move vertically in conjunction with the lateral movement of the side panels 2 .

[0051] The first connecting assembly and the second connecting assembly are mechanisms composed of a plurality of (more than two) components with a certain relative motion connected by a low pair (rotation pair or translation pair).

[0052] Furthermore, the first connecting component is a first sliding pair, and the second connecting component is a second sliding pair. The sliding directions of the first sliding pair and the second sliding pair are inclined relative to the moving direction of the side plate 2.

[0053] The sliding direction of the first sliding pair is extended and tilted, and when the moving part of the main body 1 moves vertically, the side plate 2 moves by the first sliding pair in an inclined sliding manner, thereby driving the side plate 2 to move left and right in the horizontal direction relative to the main body 1. The sliding direction of the second sliding pair is extended and tilted, and when the side plate 2 moves horizontally, the top plate 4 moves by the second sliding pair in an inclined sliding manner, thereby moving up and down in the vertical direction relative to the main body 1, thereby realizing that the top plate 4 is sequentially arranged in linkage with the main body 1 part and the side plate 2.

[0054] The first sliding pair and the second sliding pair realize the relative movement between two entities in a plane, such as a sliding guide type kinematic pair formed by a slider.

[0055] A preferred solution is that the sliding directions of the first sliding pair and the second sliding pair are inclined and extended in opposite directions in the vertical direction. The side panels 2 are arranged to move outward in linkage with the downward movement of the moving part of the main body 1, and the top panel 4 is arranged to move upward in linkage with the outward movement of the side panels 2. Alternatively, the side panels 2 move outward horizontally in linkage with the upward movement of the moving part of the main body 1, and the top panel 4 moves upward in linkage with the outward movement of the side panels 2.

[0056] The main body 1 includes a main body 106 and a push plate 107. The push plate 107 of the main body 106 is vertically movable and arranged on one side of the main body 106, and the side plate 2 is laterally limited and moved on the main body 106. The first sliding pair is linked and arranged between the push plate 107 and the side plate 2.

[0057] The first power unit 5 is transmission-connected to the push plate 107 , and the second power unit 6 is transmission-connected to the main body 106 .

[0058] Since the side plate 2 is laterally limited and moved on the main body 106, it will not move vertically relative to the main body 106. When the push plate 107 moves downward, the side plate 2 tilts relative to the push plate 107 through the first sliding pair, so that the side plate 2 moves laterally relative to the main body 106.

[0059] Specifically, the second connection assembly of the present invention includes a second connection portion 3 and a second connection member 401 .

[0060] The second connection part 3 is protrudingly disposed on the side plate 2. The second connection member 401 is protrudingly disposed on the top plate 4, and the second connection member 401 is slidably matched with the second connection part 3. One end of the second connection member 401 is reciprocatingly slidably disposed within a preset track of the second connection part 3.

[0061] The top plate 4 is arranged to move upward as the side plate 2 moves outward. During the outward movement of the side plate 2, the second connecting member 401 moves in a direction away from the side plate 2 to the upper end of the second connecting portion 3. Correspondingly, during the inward movement of the side plate 2, that is, when the side plate 2 contracts, the second connecting member 401 moves in a direction close to the side plate 2 to the lower end of the second connecting portion 3.

[0062] The second connecting member 401 and the second connecting portion 3 can achieve sliding fit in the form of a slide rail, or can also achieve sliding fit in the form of a guide member embedded in a guide groove.

[0063] In the present invention, the second connection portion 3 is preferably protrudingly disposed at the upper end of the side plate 2 and extending toward the inner side of the side plate 2 , and / or the second connection member 401 is disposed at the end of the top plate 4 and extending toward the inner side of the top plate 4 .

[0064] When the second connection portion 3 is disposed at the upper end of the side plate 2 and extends toward the inner side of the side plate 2 , and the second connection member 401 is disposed at the end of the top plate 4 and extends toward the inner side of the top plate 4 , the second connection portion 3 and the second connection member 401 can more easily achieve sliding fit.

[0065] In order to ensure the supporting effect of the top plate 4 and the side plate 2, the length of the top plate 4 and the side plate 2 needs to be increased as much as possible to ensure the contact area between the top plate 4, the side plate 2 and the supported member, such as Figure 1 and Figure 2 As shown, when the side panel 2 contracts, the second connecting member 401 moves to the lower end of the second connecting portion 3 in a direction close to the side panel 2. At this time, the ends of the top panel 4 and the side panel 2 that are close to each other may collide with each other.

[0066] Therefore, in the present invention, a plurality of second support bars 402 are disposed at the end of the top plate 4 to increase the contact area between the top plate 4 and the supported member. The second support bars 402 extend along the extension direction of the top plate 4 and are spaced apart from each other.

[0067] Correspondingly, a plurality of first support bars 203 are provided at the end of the side plate 2 close to the top plate 4 to increase the contact area between the side plate 2 and the member to be supported. The first support bars 203 extend along the extension direction of the side plate 2 and are spaced apart from each other.

[0068] The second support bar 402 and the first support bar 203 are staggered with each other. When the top plate 4 and the side plate 2 shrink, the second support bar 402 can be inserted into the gap between two adjacent first support bars 203, so as to avoid collision between the top plate 4 and the side plate 2. When the top plate 4 and the side plate 2 are both moved outward to the extreme position, that is, the top plate 4 and the side plate 2 are both in an expanded state, the second support bar 402 can increase the contact area between the top plate 4 and the supported member, and the first support bar 203 can increase the contact area between the side plate 2 and the supported member.

[0069] Furthermore, in the present invention, a second guide groove 301 is extended on the second connection part 3. The second guide groove 301 is arranged upwardly and inclined along one end of the second connection part 3 close to the side plate 2 toward the other end away from the side plate 2.

[0070] The second connecting member 401 extends from the bottom of the top plate 4 to the outside of one side of the second connecting portion 3 , and an end portion is embedded in the second guiding groove 301 .

[0071] When the main body 106 moves downward to drive the side plate 2 to move outward, the second connecting portion 3 moves outward accordingly. At this time, under the action of the second guide groove 301, the end of the second connecting member 401 gradually moves upward, thereby driving the top plate 4 to move upward.

[0072] To ensure that the top plate 4 only moves in the vertical direction, a fixing portion is also provided at the top of the main body 106 in the utility model, and a second guide column 101 is provided between the fixing portion and the top plate 4. One end of the second guide column 101 is provided at the top of the fixing portion, and the other end is connected to the inner side of the top plate 4. The second guide column 101 is a retractable guide structure for guiding the top plate 4 to move vertically up and down.

[0073] Preferably, the telescopic direction of the second guide column 101 is the vertical direction. Two groups of the second guide columns 101 are arranged at intervals. The side panels 2 are respectively arranged on both sides of the main body 1. The second guide columns 101 cooperate with the side panels 2 to ensure the stability of the vertical movement of the top panel 4, and the number of the second guide columns 101 can be reasonably set according to the number of the side panels 2.

[0074] When the top plate 4 moves upward, the second guide column 101 extends in the vertical direction to limit the displacement of the top plate 4 in other directions. When the top plate 4 contracts, the second guide column 101 shortens in the vertical direction to limit the displacement of the top plate 4 in other directions.

[0075] Furthermore, when the top plate 4 moves outward to the extreme position, that is, when the top plate 4 is in an expanded state, in order to prevent the top plate 4 from shrinking along the second guide groove 301 under the reaction force of the support member, the second connecting part 3 of the utility model also includes a second limiting groove 302, and the second limiting groove 302 is arranged at the upper end of the second guide groove 301 and extends laterally.

[0076] When the top plate 4 moves up to the extreme position, the second connecting member 401 is embedded in the second limiting groove 302. Since the second limiting groove 302 extends horizontally, the force exerted on the end of the second connecting member 401 is opposite to the vertical direction of the reaction force of the support member on the second connecting member 401, thereby ensuring that the top plate 4 remains at the extreme position.

[0077] Furthermore, the second limiting groove 302 extends in a direction away from the side panel 2. When the side panel 2 contracts, the end of the second connecting member 401 can slide out of the second limiting groove 302, and then move downward under the action of the second guide groove 301, thereby realizing the retraction of the side panel 2 and driving the retraction of the top panel 4.

[0078] The first connecting assembly in the present invention includes a first connecting portion and a first connecting member 201 .

[0079] The first connection part is arranged on the push plate 107 of the main body 1. The first connection member 201 is arranged on the inner side of the side plate 2 and extends to overlap with a part of the main body 1. The first connection member 201 is arranged to slide back and forth within a preset track of the first connection part.

[0080] The side panel 2 is arranged to move outward as the main body 1 moves downward. During the downward movement of the main body 1, the first connecting member 201 moves to the outside of the first connecting portion in the direction toward the side panel 2. Correspondingly, when the main body 1 moves upward, the first connecting member 201 moves to the inside of the first connecting portion in the direction away from the side panel 2.

[0081] The first connecting member 201 and the first connecting portion may be slidably matched in the form of a slide rail, or may be slidably matched in the form of a guide member embedded in a guide groove.

[0082] Furthermore, the first connecting portion in the utility model includes a first guide groove 102, which is arranged at the end of the main body 1 close to the side plate 2, and the first guide groove 102 is inclined upward along the direction close to the side plate 2, and the end of the first connecting member 201 is embedded in the first guide groove 102.

[0083] When the main body 1 moves downward, the first connecting portion moves downward accordingly. At this time, under the action of the first guide groove 102, the end of the first connecting member 201 gradually moves outward, thereby driving the side plate 2 to move outward, that is, the side plate 2 is expanded.

[0084] In order to ensure that the side plate 2 only moves outward in the horizontal direction, a third connecting component is further provided between the side plate 2 and the fixing portion in the utility model.

[0085] The third connection assembly includes a third connection portion 303 and a third connection member 103 .

[0086] The third connection portion 303 is disposed at the bottom of the second connection portion 3. The third connection member 103 is disposed at the upper end of the fixing portion and is slidably matched with the third connection portion 303.

[0087] The third connecting member 103 and the third connecting portion 303 can achieve sliding fit in the form of a guide rail, or can achieve sliding fit in the form of a guide member embedded in a guide groove.

[0088] Preferably, the fixing portion is protrudingly arranged at the middle part of the top of the main body 106. The third connecting member 103 is arranged at the top of the main body 106 outside one side or both sides of the fixing portion. In the utility model, the third connecting portion 303 is configured as a third guide groove extending horizontally, and the third guide groove is buckled on the outside of the third connecting member 103.

[0089] When the side plate 2 moves outward to the extreme position, the third guide groove moves to the end of the third connecting member 103 close to the side plate 2 ; when the side plate 2 moves inward to the extreme position, the third guide groove moves to the end of the third connecting member 103 away from the side plate 2 .

[0090] Alternatively, to ensure that the side panel 2 only displaces in the lateral direction, the bottom of the main body 1 in the utility model may also be provided with a limiting hole 105 extending in the horizontal direction. Correspondingly, the bottom of the side panel 2 is also provided with a first guide column 202 extending in the horizontal direction. The first guide column 202 passes through the limiting hole 105. Under the guidance of the limiting hole 105, the side panel 2 can be displaced only in the horizontal direction.

[0091] Furthermore, when the side panel 2 moves outward to the extreme position, that is, when the side panel 2 is in an expanded state, in order to prevent the side panel 2 from shrinking along the first guide groove 102 under the reaction force of the support member, the first connecting portion of the utility model also includes a first limiting groove 104, and the first limiting groove 104 is arranged at the upper end of the first guide groove 102 and extends vertically.

[0092] When the side panel 2 moves outward to the extreme position, the first connecting member 201 is embedded in the first limiting groove 104. Since the first limiting groove 104 extends in the vertical direction, the force exerted on the end of the first connecting member 201 is opposite to the direction of the reaction force of the supporting member on the first connecting member 201, thereby ensuring that the side panel 2 remains at the extreme position.

[0093] The first limiting groove 104 extends in the direction toward the top plate 4. When the main body 1 moves upward, the end of the first connecting member 201 can slide out of the first limiting groove 104, and then move in the direction away from the side plate 2 under the action of the first guide groove 102, thereby realizing the upward movement of the main body 1 and the retraction of the side plate 2.

[0094] The utility model cuts off the movable relationship between the cylinder and the side plates 2 and the top plate 4 through the first connecting component and the second connecting component, thereby avoiding the limitation of the cylinder specifications on the supporting effect. Even when the supporting area is large, the situation of insufficient cylinder supporting force due to space limitation can be avoided.

[0095] The above is only a preferred embodiment of the present invention, and does not constitute any form of limitation to the present invention. Although the present invention has been disclosed as a preferred embodiment as above, it is not intended to limit the present invention. Any technician familiar with this patent can make some changes or modifications to equivalent embodiments of equivalent changes using the technical content suggested above without departing from the scope of the technical solution of the present invention. The implementation schemes in the above embodiments can also be further combined or replaced. However, any simple modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the present invention without departing from the content of the technical solution of the present invention are still within the scope of the present invention.

Claims

1. An expansion and contraction support structure of a foaming mold, characterized in that: include: The main body (1) is partially reciprocatably arranged; A side plate (2) is arranged outside at least one side of the moving direction of the main body (1) and is arranged to move in conjunction with the movement of the main body (1) through a first connecting component; The top plate (4) is arranged on a moving path outside the main body (1) and is arranged in linkage with the movement of the side plate (2) through a second connecting component. The top plate (4) is arranged to move in linkage with the movement of the side plate (2).

2. The expansion and contraction support structure of the foaming mold according to claim 1, characterized in that: The first connecting component is a first sliding pair, the second connecting component is a second sliding pair, and the sliding directions of the first sliding pair and the second sliding pair are arranged to be inclined relative to the moving direction of the side plate (2).

3. The expansion and contraction support structure of the foaming mold according to claim 2, characterized in that: The sliding directions of the first sliding pair and the second sliding pair are arranged to extend obliquely in opposite directions in the vertical direction, the side panels (2) are arranged to move outward in conjunction with the downward movement of the main body (1), and the top panel (4) is arranged to move upward in conjunction with the outward movement of the side panels (2).

4. The expansion and contraction support structure of the foaming mold according to any one of claims 2-3, characterized in that: The main body (1) comprises a main body (106) and a push plate (107); the push plate (107) is arranged on one side of the main body (106) and can move vertically; the side plate (2) is moved laterally on the main body (106) with limited movement; and the first sliding pair is arranged between the push plate (107) and the side plate (2).

5. The expansion and contraction support structure of the foaming mold according to claim 4, characterized in that: The first sliding pair comprises: A first connecting portion, disposed on the push plate (107); A first connecting member (201) is protrudingly arranged on the side plate (2), and one end of the first connecting member (201) is arranged to slide back and forth within a preset track of the first connecting portion.

6. The expansion and contraction support structure of the foaming mold according to claim 5, characterized in that: The first connecting portion comprises a first guide groove (102) and a first limiting groove (104); the first guide groove (102) is arranged on the push plate (107) and the first guide groove (102) is arranged to be inclined downward from one end of the push plate (107) close to the side plate (2) to the other end away from the side plate (2); the first limiting groove (104) is arranged to extend vertically upward from the upper end of the first guide groove (102); The first connecting member (201) extends from the side plate (2) to the outside of one side of the push plate (107), and an end portion thereof is slidably embedded in the first guide groove (102).

7. The expansion and contraction support structure of the foaming mold according to claim 5, characterized in that: The second sliding pair comprises: A second connecting portion (3) protrudingly disposed on the side plate (2); The second connecting member (401) is protrudingly arranged on the top plate (4), and one end of the second connecting member (401) is arranged to slide back and forth within a preset track of the second connecting portion (3).

8. The expansion and contraction support structure of the foaming mold according to claim 7, characterized in that: A third connecting component is provided between the side plate (2) and the top of the main body (1), and is provided on the main body (106) in a transversely slidable limit position through the third connecting component; The third connection component comprises: A third connecting portion (303) is arranged at the bottom of the second connecting portion (3); The third connecting member (103) is arranged at the upper end of the main body (106) and is slidably matched with the third connecting part (303) in a guide groove or guide rail.

9. The expansion and contraction support structure of the foaming mold according to claim 7, characterized in that: A second guide groove (301) is extended from the second connection portion (3), and the second guide groove (301) is arranged obliquely upward from one end of the second connection portion (3) close to the side plate (2) to the other end away from the side plate (2); The second connecting member (401) extends from the bottom of the top plate (4) to the outside of one side of the second connecting portion (3), and an end portion is embedded in the second guide groove (301).

10. The expansion and contraction support structure of the foaming mold according to claim 9, characterized in that: The second connecting portion (3) is also provided with a second limiting groove (302) which is in communication with the upper end of the second guiding groove (301), and the second limiting groove (302) is arranged to extend in a transverse direction, and when the top plate (4) moves upward to an extreme position, the second connecting member (401) is embedded in the second limiting groove (302).

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