Foam forming mold locking device and foam forming production device

Abstract

The application provides a foam forming mold locking device and a foam forming production device. The foam forming mold locking device comprises at least one locking mechanism, and the at least one locking mechanism comprises a sliding assembly, a first locking piece and a second locking piece. The foam forming mold comprises an upper mold part and a lower mold part which are detachably connected, and the upper mold part covers the lower mold part. The sliding assembly comprises a sliding rod which is installed on the lower mold part and can slide along the edge of the lower mold part under the action of external force. The first locking piece is fixed on the sliding rod and slides with the sliding rod between a first position and a second position. The second locking piece is fixed on the upper mold part. The first locking piece is engaged with the second locking piece when the first locking piece is in the first position, so that the upper mold part and the lower mold part of the foam forming mold are locked and fixed. The application has the advantages of good locking stability and convenient locking / unlocking operation.

Description

Technical Field

[0001] This invention relates to the field of foam production and preparation, and in particular to a foam molding die locking device and a foam molding production apparatus. Background Technology

[0002] When producing foam products, foam molding molds (hereinafter referred to as molds) are used to produce foam products of a specific shape. Molds generally consist of multiple detachable parts for demolding operations in subsequent production processes. For example, water vapor is usually first introduced into the mold, then water is introduced for cooling, then a vacuum is drawn, and finally gas is introduced to extrude the product from the mold. Before performing the above steps, multiple parts of the mold need to be fixed to prevent the mold from expanding or shaking violently during production, which would affect the production quality of the foam.

[0003] In existing technologies, the various parts of a mold can be fixed together by fasteners, such as by locking them with screws and screw holes. Although this can achieve the purpose of fixing, the stability is poor (for example, the screws may loosen during vibration), the locking and unlocking operations are complicated (for example, all fasteners need to be removed), and the mold is easily worn.

[0004] It is evident that existing technologies suffer from poor mold stability during production and complex locking / unlocking operations. Summary of the Invention

[0005] This invention provides a foam molding die locking device and a foam molding production device to solve the problems of poor die stability and complex locking / unlocking operations in the production process of existing technologies.

[0006] The present invention provides a foam molding die locking device for locking foam molding dies, including at least one locking mechanism, wherein the at least one locking mechanism includes a sliding component, a first locking member and a second locking member.

[0007] The foam molding mold includes a detachably connected upper mold part and a lower mold part, with the upper mold part covering the lower mold part.

[0008] The sliding assembly includes a sliding rod, which is mounted on the lower mold portion and can slide along the edge of the lower mold portion under the action of external force.

[0009] The first locking element is fixed to the sliding rod and slides with the sliding rod between the first and second positions. The second locking element is fixed to the upper mold part.

[0010] The first locking member in the first position engages with the second locking member to lock and fix the upper mold part and the lower mold part of the foam molding mold.

[0011] The foam molding mold locking device of the present invention can drive the first locking member to slide along the edge of the foam molding mold through a sliding component, so that the first locking member engages with the second locking member fixed on the foam molding mold in the first position, thereby locking and fixing the upper and lower parts of the foam molding mold. When the first locking member leaves the first position through the sliding component, the first locking member and the second locking member separate, and the foam molding mold is unlocked (or it can be understood that the upper mold part and the lower mold part of the foam molding mold can be separated and opened). It can be seen that the present invention, through the ingenious cooperation of the sliding component, the first locking member and the second locking member, not only has strong fastening stability, but also greatly reduces the number of disassembly and assembly parts required to fasten the foam molding mold. Furthermore, the present invention can lock or unlock the foam molding mold through a simple push-pull (or can be understood as sliding) operation, without the need for repeated disassembly and installation of fixing parts, making the operation simple and less likely to damage the foam molding mold.

[0012] Optionally, the sliding assembly also includes a slide groove and multiple wear-resistant blocks. The slide groove is fixed to the lower mold part and forms a sliding cavity with the lower mold part. The sliding rod is installed in the sliding cavity.

[0013] Multiple wear-resistant blocks are attached to the surface of the sliding rod along its circumference. Some of the wear-resistant blocks are located between the inner wall of the groove and the sliding rod, while the rest are located between the lower mold and the sliding rod.

[0014] With the above structure, the foam molding mold locking device of this embodiment of the invention can protect the sliding rod by setting multiple wear-resistant blocks on the periphery of the sliding rod, reduce the damage caused by the sliding rod being in a frictional working state for a long time, and improve the service life of the sliding rod and the slide groove.

[0015] Optionally, the first locking member is arc-shaped or L-shaped, the first end of the first locking member is fixed to the sliding rod, and the second locking member has a locking notch in the area corresponding to the second end of the first locking member.

[0016] When the first locking member is in the first position, the second end of the first locking member engages with the locking notch of the second locking member.

[0017] Optionally, the second end of the first locking member is provided with a locking roller, and the second end of the first locking member is engaged in the locking notch of the second locking member by the locking roller.

[0018] With the above structure, when the foam molding die locking device of this embodiment of the invention is in the locked state, it can engage with the locking notch of the second locking member through the engaging roller on the first locking member. On the one hand, such a structure can improve the engagement stability of the two (the first locking member and the second locking member). On the other hand, the cooperation structure of the engaging roller and the locking notch can enable the two (the first locking member and the second locking member) to withstand greater radial force during the engagement process, which helps to improve the reliability of the foam molding die locking device.

[0019] Optionally, at least one locking mechanism may further include a positioning plunger, which passes through a slide groove, and the slide rod is provided with a positioning groove.

[0020] When the first locking element is in the first position, the positioning plunger engages in the positioning groove on the sliding rod.

[0021] With the above structure, the foam molding mold locking device of this embodiment of the invention can assist in positioning the locking position (i.e., the position where the first locking member is in the first position) through the positioning plunger set on the slide groove and the positioning groove on the sliding rod, ensuring that the foam molding mold is locked when the first locking member is in the first position. Furthermore, the positioning plunger can limit the sliding rod and prevent the sliding rod from shifting when the foam molding mold moves or vibrates.

[0022] Optionally, at least one locking mechanism may further include a first wedge and a second wedge.

[0023] The first wedge is fixed to the inner top surface of the slide groove and the lower mold part. The first wedge has a first inclined surface, and the second wedge has a second inclined surface. The second wedge is inserted between the sliding rod and the first wedge, and the second inclined surface of the second wedge is attached to the first inclined surface of the first wedge.

[0024] The second wedge can move relative to the first wedge under the action of external force to adjust the relative distance between the sliding rod and the inner top surface of the groove.

[0025] When the second wedge moves to the appropriate position, the positioning plunger on the slide groove engages with the positioning groove on the sliding rod.

[0026] With the above structure, the foam molding mold locking device of this embodiment of the invention has a first wedge and a second wedge between the top surface of the groove and the sliding rod. The relative movement of the second wedge and the first wedge can be used to adjust the relative distance between the sliding rod and the top surface of the groove, which greatly improves the installation accuracy and installation efficiency of the foam molding mold locking device.

[0027] Optionally, there is a first gap between the slide and the corresponding wear-resistant block, and a second gap between the lower mold part and the corresponding wear-resistant block.

[0028] The chute is equipped with an oil nozzle, and the outlet of the oil nozzle is connected to the first gap and the second gap.

[0029] Optionally, there are multiple locking mechanisms, which are spaced apart along the circumferential edge of the foam molding die.

[0030] The sliding rods of multiple locking mechanisms located on the same edge of the foam molding mold are connected together.

[0031] The present invention provides a foam molding production apparatus, including the foam molding mold locking device involved in the above embodiments and possible implementations.

[0032] Optionally, one side of the upper mold portion is hinged to the corresponding side of the lower mold portion.

[0033] The foam molding mold locking device has multiple locking mechanisms, which are distributed on a first side of the foam molding mold and a second side opposite to the first side. Attached Figure Description

[0034] Figure 1 This is a side view of the foam molding production apparatus according to an embodiment of the present invention;

[0035] Figure 2 This is a partial structural schematic diagram of the foam molding die locking device according to an embodiment of the present invention;

[0036] Figure 3 This is a front view of the foam molding production device according to an embodiment of the present invention, wherein the foam molding mold is in a locked state;

[0037] Figure 4 This is a front view of the foam molding production device according to an embodiment of the present invention, wherein the foam molding mold is in the unlocked state;

[0038] Figure 5 This is a partial cross-sectional view of the foam molding die locking device according to an embodiment of the present invention.

[0039] Explanation of reference numerals in the attached figures:

[0040] 1: Foam molding mold locking device;

[0041] 10: Locking mechanism; 11: First locking element; 111: First end; 112: Second end; 1120: Engaging roller; 1121: Mounting element; 12: Second locking element; 121: Locking notch; 130: Sliding cavity; 1301: First gap; 1302: Second gap; 131: Sliding rod; 132: Slide groove; 133: Wear-resistant block; 134: Positioning plunger; 135: First wedge; 136: Second wedge; 137: Adjusting element; 14: Limiting element; 15: Buffer element; 16: Oil nozzle;

[0042] 2: Foam molding production device; 21: Foam molding mold; 21A: First side; 21B: Second side; 211: Upper mold part; 212: Lower mold part. Detailed Implementation

[0043] The present invention will now be described in detail with reference to the accompanying drawings and specific embodiments. These embodiments are based on the technical solution of the present invention and provide detailed implementation methods and specific operating procedures. However, the scope of protection of the present invention is not limited to the following embodiments. It should be noted that, unless otherwise specified, the embodiments and features described in the embodiments of the present invention can be combined with each other.

[0044] It should be noted that in this specification, similar reference numerals and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0045] In the description of this embodiment, it should be noted that the terms "upper", "lower", "inner", "bottom", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship that the product of the invention is usually placed in during use. 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 orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limiting the present invention.

[0046] The terms “first”, “second”, etc., are used only to distinguish descriptions and should not be interpreted as indicating or implying relative importance.

[0047] In the description of this embodiment, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set up," "connected," and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this embodiment based on the specific circumstances.

[0048] To make the objectives, technical solutions, and advantages of the present invention clearer, the embodiments of the present invention will be described in further detail below with reference to the accompanying drawings.

[0049] Please see Figures 1-5 , Figure 1 This is a side view of the foam molding production apparatus according to an embodiment of the present invention. Figure 2 This is a partial structural schematic diagram of the foam molding die locking device according to an embodiment of the present invention. Figure 3 This is a front view schematic diagram of the foam molding production device according to an embodiment of the present invention, wherein the foam molding mold is in a locked state. Figure 4 This is a front view of the foam molding production apparatus according to an embodiment of the present invention, wherein the foam molding mold is in the unlocked state. Figure 5 This is a partial cross-sectional view of the foam molding die locking device according to an embodiment of the present invention.

[0050] This invention provides a foam molding die locking device 1 for locking a foam molding die 21, including at least one locking mechanism 10. The at least one locking mechanism 10 includes a sliding component, a first locking member 11, and a second locking member 12. Wherein, as... Figure 1 As shown, the foam molding mold 21 includes an upper mold portion 211 and a lower mold portion 212 that are detachably connected, with the upper mold portion 211 covering the lower mold portion 212.

[0051] Please see Figures 2-5 The sliding assembly includes a sliding rod 131, which is mounted on the lower mold portion 212 and can slide along the edge of the lower mold portion 212 under the action of external force (sliding direction as shown in the figure). Figure 2 , Figure 3 , Figure 4 (As indicated by the middle arrow). The first locking member 11 is fixed to the sliding rod 131 and slides with the sliding rod 131 between the first and second positions. The second locking member 12 is fixed to the upper mold part 211.

[0052] Please see Figure 2 and Figure 3 Understandably, the first locking member 11, in the first position, engages with the second locking member 12 to lock and fix the upper mold portion 211 and the lower mold portion 212 of the foam molding mold 21.

[0053] like Figure 4 As shown, the first locking member 11 and the second locking member 12 separate from the first position (or can be understood as the locking position). At this time, the upper mold part 211 and the lower mold part 212 of the foam molding mold 21 are in the unlocked state. The unlocked state can be understood as the state in which the upper mold part 211 and the lower mold part 212 are not fixed together and can be separated for demolding.

[0054] Those skilled in the art will understand that the aforementioned second position does not refer to a specific position. Any position that is away from the first position can be considered the second position. For example, it could be the position where the first locking member 11 has just separated from the second locking member 12 (or can be understood as not tightly engaged), or it could be the position where the first locking member 11 is a certain distance away from the second locking member 12 (e.g., Figure 4 (As shown).

[0055] The foam molding mold locking device 1 of the present invention can drive the first locking member 11 to slide along the edge of the foam molding mold through the sliding component, so that the first locking member 11 is engaged with the second locking member 12 fixed on the foam molding mold 21 when in the first position, thereby locking and fixing the upper mold part 211 and the lower mold part 212 of the foam molding mold 21. When the first locking member 11 leaves the first position through the sliding component, the first locking member 11 and the second locking member 12 are separated, and the foam molding mold is unlocked (or it can be understood that the upper mold part and the lower mold part of the foam molding mold can be separated and opened). It can be seen that the present invention, through the ingenious cooperation of the sliding component, the first locking member 11 and the second locking member 12, not only has strong fastening stability, but also greatly reduces the number of disassembly and assembly parts required to fasten the foam molding mold 21. Furthermore, the present invention can lock or unlock the foam molding mold through a simple push-pull (or can be understood as sliding) operation, without the need for repeated disassembly and installation of fixing parts, making the operation simple and less likely to damage the foam molding mold 21.

[0056] Wherein, at least one locking mechanism 10 can be understood to mean that the number of locking mechanisms 10 can be one or more. In one embodiment, please refer to Figure 2 and combined Figure 3 and Figure 4 It is understood that there are multiple locking mechanisms 10, which are spaced apart along the circumferential edge of the foam molding mold. In one embodiment, the sliding rods 131 of the multiple locking mechanisms 10 located on the same side edge of the foam molding mold are connected together. In one example, the sliding rods 131 of the multiple locking mechanisms 10 located on the same side edge of the foam molding mold are integrally formed (or it can be understood that multiple locking mechanisms located on the same side share a single sliding rod).

[0057] Furthermore, such as Figure 1 As shown, in one embodiment, one side of the upper mold portion 211 of the foam molding mold 21 is hinged to the corresponding side of the lower mold portion 212. A plurality of locking mechanisms 10 are distributed on a first side 21A of the foam molding mold 21, and a second side 21B opposite to the first side 21A. Those skilled in the art will understand that... Figure 1In the view shown, the sliding rod (not shown) slides inward or outward perpendicular to the paper along the edge of the foam molding mold 21. Those skilled in the art will understand that in other alternative embodiments, the upper mold portion 211 and the lower mold portion 212 of the foam molding mold 21 may not be hinged together. Furthermore, the multiple locking mechanisms 10 in the above embodiments can be understood as being distributed on opposite sides. In other alternative embodiments, the multiple locking mechanisms 10 may also be distributed on adjacent sides, or distributed on both opposite and adjacent sides; this invention does not limit this.

[0058] In one implementation, please refer to Figure 1 and Figure 2 The foam molding mold locking device 1 also includes a limiting member 14 and a buffer member 15. The limiting member 14 is located in the lower mold portion 212 to limit the extreme position of the sliding rod 131. In one embodiment, such as Figure 2 As shown, when the first locking member 11 is engaged with the second locking member 12, the end of the sliding rod 131 just abuts against the limiting member 14. The buffer member 15 is disposed between the limiting member 14 and the sliding rod 131 to buffer the impact of the sliding rod 131. The buffer member 15 can be, for example, a silicone pad, a rubber pad, etc.

[0059] The shapes of the first locking member 11 and the second locking member 12 are not limited, as long as they can engage together when the first locking member 11 is in the first position, they do not depart from the scope of the embodiments of the present invention. For one embodiment, please refer to... Figures 2-4 The first locking element 11 is arc-shaped or L-shaped, such as Figure 3 and Figure 4 As shown, the first end 111 of the first locking member 11 is fixed to the sliding rod 131, and the second locking member 12 has a locking notch 121 in the area corresponding to the second end 112 of the first locking member 11. When the first locking member 11 is in the first position, the second end 112 of the first locking member 11 engages in the locking notch 121 of the second locking member 12. Furthermore, the shape of the locking notch 121 is not limited, and it matches the shape of the second end 112 of the first locking member 11. For example, the outline shape of the locking notch 121 can be C-shaped, and in other alternative embodiments, it can also be V-shaped or other shapes.

[0060] In one implementation, such as Figure 2 and Figure 5 As shown, the second end 112 of the first locking member 11 is provided with an engaging roller 1120, and the second end 112 of the first locking member 11 engages with the locking notch 121 of the second locking member 12 via the engaging roller 1120. Further, as... Figure 5As shown, the engaging roller 1120 can be fixed to the second end 112 of the first locking member 11, for example, by means of the mounting member 1121.

[0061] With the above structure, when the foam molding mold locking device 1 of this embodiment of the invention is in the locked state, it can engage with the locking notch 121 of the second locking member 12 through the engaging roller 1120 on the first locking member 11. On the one hand, such a structure can improve the engagement stability of the two (the first locking member 11 and the second locking member 12). On the other hand, the cooperation structure of the engaging roller 1120 and the locking notch 121 can enable the two (the first locking member 11 and the second locking member 12) to withstand greater radial force during the engagement process, which helps to improve the reliability of the foam molding mold locking device 1.

[0062] In one implementation, such as Figure 5 As shown, at least one locking mechanism 10 also includes a positioning plunger 134, which passes through the slide groove 132, and the sliding rod 131 is provided with a positioning groove (not shown in the figure). When the first locking member 11 is in the first position, the positioning plunger 134 is engaged in the positioning groove on the sliding rod 131.

[0063] The foam molding mold locking device 1 of this embodiment of the invention can assist in positioning the locking position (i.e., the position of the first locking member 11 when it is in the first position) by using the positioning plunger 134 on the slide groove 132 and the positioning groove (not shown in the figure) on the sliding rod 131. This ensures that the foam molding mold 21 is locked when the first locking member 11 is in the first position. Furthermore, the positioning plunger 134 can limit the sliding rod 131 to prevent the sliding rod 131 from shifting when the foam molding mold 21 moves or vibrates.

[0064] In one implementation, such as Figure 5 As shown, at least one locking mechanism 10 further includes a first wedge 135 and a second wedge 136.

[0065] The first wedge 135 is fixed to the inner top surface of the slide groove 132 opposite to the lower mold portion 212. The first wedge 135 has a first inclined surface, and the second wedge 136 has a second inclined surface. The second wedge 136 is inserted between the sliding rod 131 and the first wedge 135, and the second inclined surface of the second wedge 136 is attached to the first inclined surface of the first wedge 135. The second wedge 136 can move relative to the first wedge 135 under the action of external force to adjust the relative distance between the sliding rod 131 and the inner top surface of the slide groove 132. When the second wedge 136 moves to the appropriate position, the positioning plunger 134 on the slide groove 132 engages in the positioning groove (not shown in the figure) on the sliding rod 131.

[0066] In one embodiment, the end of the second wedge 136 away from the first wedge 135 is provided with an adjusting member 137. By applying an external force to the adjusting member 137, the second wedge 136 is driven to move toward or away from the first wedge 135. In an exemplary embodiment, the adjusting member 137 is a screw.

[0067] The foam molding die locking device 1 of this invention has a first wedge 135 and a second wedge 136 provided between the top surface of the slide groove 132 and the sliding rod 131. The relative distance between the sliding rod 131 and the top surface of the slide groove 132 can be adjusted by the relative movement of the second wedge 136 and the first wedge 135, which greatly improves the installation accuracy and installation efficiency of the foam molding die locking device 1.

[0068] In one implementation, such as Figure 5 As shown, the sliding assembly also includes a groove 132 and multiple wear-resistant blocks 133. The groove 132 is fixed to the lower mold portion 212 and together with the lower mold portion 212 forms a sliding cavity 130. The sliding rod 131 is installed inside the sliding cavity 130. Multiple wear-resistant blocks 133 are attached to the surface of the sliding rod 131 along the circumference of the sliding rod 131. Among them, some of the wear-resistant blocks 133 are located between the inner wall of the groove 132 and the sliding rod 131, and the rest are located between the lower mold portion (not shown in the figure) and the sliding rod 131.

[0069] The foam molding mold locking device 1 of this invention can protect the sliding rod 131 by providing multiple wear-resistant blocks 133 on the periphery of the sliding rod 131, thereby reducing the damage caused by the sliding rod 131 being in a friction working state for a long time and improving the service life of the sliding rod 131 and the slide groove 132.

[0070] In one implementation, such as Figure 5 As shown, there is a first gap 1301 between the slide groove 132 and the corresponding wear-resistant block, and a second gap 1302 between the lower mold portion 212 and the corresponding wear-resistant block. An oil nozzle 16 is provided on the slide groove 132, and the outlet of the oil nozzle 16 is connected to the first gap 1301 and the second gap 1302, so that lubricating oil can be introduced into the first gap 1301 and / or the second gap 1302 through the oil nozzle 16 to lubricate the sliding friction areas of the sliding rod 131, the wear-resistant block 133, the slide groove 132, and the lower mold portion 212.

[0071] The present invention also provides a foam molding production apparatus 2, including the foam molding mold locking device 1 involved in the above embodiments and possible implementations.

[0072] In one embodiment, the foam molding production apparatus 2 further includes a position sensor disposed on the sliding rod 131. The position sensor can determine whether the first locking member 11 is in a first position by identifying the position of the sliding rod 131, or, in other words, can determine whether the foam molding die is in a locked state by identifying the position of the sliding rod 131. In one embodiment, the foam molding production apparatus 2 further includes a controller electrically connected to the position sensor. The position sensor is used to identify the real-time position of the sliding rod 131 and feed the real-time position back to the controller. The controller is used to control the sliding rod 131 to slide according to the real-time position fed back by the position sensor.

[0073] The preferred embodiments of the present invention have been described in detail above. It should be understood that those skilled in the art can make numerous modifications and variations based on the concept of the present invention without creative effort. Therefore, all technical solutions that can be obtained by those skilled in the art based on the concept of the present invention through logical analysis, reasoning, or limited experimentation on the basis of existing technology should be within the scope of protection defined by the claims.

Claims

1. A foam molding die locking device, used to lock a foam molding die, characterized in that, It includes at least one locking mechanism, wherein the at least one locking mechanism includes a sliding component, a first locking element, and a second locking element; The foam molding mold includes a detachably connected upper mold part and a lower mold part, wherein the upper mold part covers the lower mold part; The sliding assembly includes a sliding rod, which is mounted on the lower mold portion and is capable of sliding along the edge of the lower mold portion under the action of external force; The first locking member is fixed to the sliding rod and slides with the sliding rod between a first position and a second position; the second locking member is fixed to the upper mold portion; The first locking member in the first position engages with the second locking member to lock and fix the upper mold portion and the lower mold portion of the foam molding mold. The sliding assembly further includes a sliding groove and multiple wear-resistant blocks. The sliding groove is fixed to the lower mold portion and forms a sliding cavity with the lower mold portion. The sliding rod is installed inside the sliding cavity. The plurality of wear-resistant blocks are attached to the surface of the sliding rod along the circumference of the sliding rod, wherein some of the wear-resistant blocks are located between the inner wall of the groove and the sliding rod, and the remaining parts are located between the lower mold part and the sliding rod; The first locking member is arc-shaped or L-shaped, and the first end of the first locking member is fixed to the sliding rod. The second locking member has a locking notch in the area corresponding to the second end of the first locking member. When the first locking member is in the first position, the second end of the first locking member engages within the locking notch of the second locking member; The second end of the first locking member is provided with a locking roller, and the second end of the first locking member is engaged in the locking notch of the second locking member by the locking roller; The at least one locking mechanism further includes a positioning plunger, which passes through the slide groove, and the sliding rod is provided with a positioning groove; When the first locking member is in the first position, the positioning plunger engages in the positioning groove on the sliding rod; The at least one locking mechanism further includes a first wedge and a second wedge; The first wedge is fixed to the inner top surface of the slide groove opposite to the lower mold portion. The first wedge has a first inclined surface, and the second wedge has a second inclined surface. The second wedge is inserted between the sliding rod and the first wedge, and the second inclined surface of the second wedge is attached to the first inclined surface of the first wedge. The second wedge can move relative to the first wedge under the action of an external force to adjust the relative distance between the sliding rod and the inner top surface of the groove; When the second wedge moves to the appropriate position, the positioning plunger on the slide groove engages in the positioning groove on the sliding rod; The foam molding mold locking device further includes a limiting member and a buffer member. The limiting member is located in the lower mold part to limit the extreme position of the sliding rod. The buffer member is located between the limiting member and the sliding rod to buffer the impact of the sliding rod.

2. The foam molding die locking device as described in claim 1, characterized in that, There is a first gap between the slide groove and the corresponding wear-resistant block, and there is a second gap between the lower mold part and the corresponding wear-resistant block; The chute is equipped with an oil nozzle, and the outlet of the oil nozzle is connected to the first gap and the second gap.

3. The foam molding die locking device as described in any one of claims 1 to 2, characterized in that, The locking mechanism is a plurality of such mechanisms, which are spaced apart along the circumferential edge of the foam molding mold; The sliding rods of multiple locking mechanisms located on the same side edge of the foam molding mold are connected together.

4. A foam molding production apparatus, characterized in that, Includes the foam molding mold locking device and the foam molding mold as described in any one of claims 1 to 3.

5. The foam molding production apparatus as described in claim 4, characterized in that, One side of the upper mold portion is hinged to the corresponding side of the lower mold portion; the locking mechanism of the foam molding mold locking device is multiple, and the multiple locking mechanisms are distributed on the first side where the one side of the foam molding mold is located, and on the second side opposite to the first side.

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