An ETPU foam forming machine

Abstract

This utility model relates to the field of foam molding design technology, and in particular to an ETPU foam molding machine. It includes a base plate, a lower mold mounted above the base plate, an upper mold mounted above the lower mold, a drive assembly connected to the upper mold for driving the upper mold to move vertically relative to the lower mold, thereby enabling the upper and lower molds to close and open; a mold-locking assembly for restricting the relative movement of the upper and lower molds when they are closed; and a heat dissipation assembly mounted on the side of the lower mold. The ETPU foam molding machine of this utility model, through the setting of the mold-locking assembly, ensures that the upper mold can move precisely into position when the mold is closed, and also guarantees a tight fit between the upper and lower molds when they are closed.

Description

Technical Field

[0001] This utility model relates to the field of foam molding design technology, and in particular to an ETPU foam molding machine. Background Technology

[0002] Foam molding involves directly filling a mold with foaming resin, heating it to melt and form a gas-liquid saturated solution. Through nucleation, a large number of tiny bubble nuclei are formed. As the bubble nuclei grow, foam plastic parts are produced. There are three common foaming methods: physical foaming, chemical foaming, and mechanical foaming.

[0003] Currently, ETPU foam molding machines on the market generally use hydraulic rods to drive the upper mold to move down and fit with the lower mold for injection processing. Existing ETPU foam molding machines cannot provide auxiliary limiting on both sides of the upper and lower molds, resulting in insufficient bonding between the ETPU foam molding machines. At the same time, because the temperature of ETPU foam is high when it is formed in the mold, and the device lacks cooling measures, the production efficiency is low.

[0004] Therefore, it is necessary to propose a technical means to solve the above-mentioned defects. Utility Model Content

[0005] The present invention adopts the following technical solution:

[0006] An ETPU foam molding machine includes a base plate, a lower mold mounted above the base plate, an upper mold mounted above the lower mold, a drive assembly connected to the upper mold for driving the upper mold to move vertically relative to the lower mold to achieve mold closing and opening of the upper and lower molds, a mold locking assembly for restricting the relative movement of the upper and lower molds when the upper and lower molds are closed, and a heat dissipation assembly mounted on the side of the lower mold. The mold locking assembly includes a vertical insert rod, a return spring, and a locking block. The bottom of the vertical insert rod has a mounting groove. The locking block is slidably mounted in the mounting groove, so that the locking block has a first working state located within the mounting groove. The device is capable of sliding from the mounting slot to one side of the vertical insert rod in a second working state; the return spring is installed in the mounting slot and connected to the locking block, and the return spring is in a compressed state when the locking block is in the first working state, so that the return spring can drive the locking block to return to the second working state when the locking block is in the first working state; the bottom of the locking block is provided with a beveled portion, so that the locking block switches from the second working state to the first working state when the beveled portion is pressed; the upper side of the lower mold is provided with a slot for the vertical insert rod to be inserted when the mold is closed, and a connecting groove opened at the bottom of the slot for the locking block to extend out of the slot when it returns to the second working state.

[0007] Preferably, it further includes a top plate, an upper connecting plate, a lower connecting plate, and guide rods; the top plate is installed above the bottom plate; the guide rods are installed at the four corners above the bottom plate and connected to the top plate; the upper connecting plate and the lower connecting plate are arranged from top to bottom between the top plate and the bottom plate and are connected to the guide rods; the lower mold is installed above the lower connecting plate; and the upper mold is installed below the upper connecting plate.

[0008] Preferably, the drive assembly includes a first cylinder mounted above the top plate and connected to the upper connecting plate for driving the upper connecting plate to move vertically up and down along the guide rod.

[0009] Preferably, the mold clamping assembly further includes a side plate, a push plate, a push block, and a second cylinder; the side plate is installed on the side of the lower connecting plate; the push plate is installed on the side of the side plate facing the lower mold; the push block is installed on the side of the push plate facing the lower mold and is arranged relative to each of the connecting slots on the side of the lower mold; the second cylinder is installed on the side plate and connected to the push plate, for driving the push plate to move toward the lower mold so that the push block is engaged in the connecting slot.

[0010] Preferably, the heat dissipation assembly includes heat dissipation plates that are equidistantly arranged on the side of the lower mold, water-cooling pipes that pass through each heat dissipation plate, and a water-cooling module connected to the water-cooling pipes to realize the water-cooling circulation of liquid in the water-cooling pipes.

[0011] Preferably, the water-cooled module includes an outlet pipe, a return pipe, and a refrigeration unit; the outlet pipe is connected to the inlet end of each of the water-cooled pipes, and the return pipe is connected to the outlet end of each of the water-cooled pipes; the refrigeration unit is connected to the outlet pipe and the return pipe.

[0012] The ETPU foam molding machine disclosed in this utility model, through the setting of the mold locking component, enables the upper mold to move precisely into place during mold closing, and ensures a tight fit between the upper and lower molds during mold closing. In addition, through the setting of the heat dissipation component, the lower mold is cooled when the mold closing is completed, thereby cooling the ETPU foam, improving the overall production efficiency of the device, and making it suitable for industrial applications. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of an ETPU foam molding machine according to the present invention;

[0014] Figure 2 This is a schematic diagram of a portion of the structure of an ETPU foam molding machine according to the present invention;

[0015] Figure 3 This is a schematic diagram of the insert rod in an ETPU foam molding machine according to the present invention;

[0016] Figure 4 This is an overall schematic diagram of the heat dissipation component in an ETPU foam molding machine according to the present invention. Detailed Implementation

[0017] The technical solution of this utility model will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0018] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model 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, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0019] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" 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 utility model based on the specific circumstances.

[0020] Please see Figures 1 to 4 An ETPU foam molding machine includes a base plate 10, a lower mold 20 mounted above the base plate 10, an upper mold 30 mounted above the lower mold 20, a drive assembly 40 connected to the upper mold 30 for driving the upper mold 30 to move relative to the lower mold 20 in the vertical direction, so as to close and open the upper mold 30 and the lower mold 20, a mold locking assembly 50 for restricting the relative movement of the upper mold 30 and the lower mold 20 when the upper mold 30 and the lower mold 20 are closed, and a heat dissipation assembly 60 mounted on the side of the lower mold 20; wherein, the mold locking assembly 50 includes a vertical insert rod 501, a return spring 502, and a locking block 503; the bottom of the vertical insert rod 501 is provided with a mounting groove; the locking block 503 is slidably mounted in the mounting groove so that the locking block 503 has a first position in the mounting groove. The working state includes a first working state and a second working state in which the block 503 can slide from the mounting slot to one side of the vertical insert 501; the return spring 502 is installed in the mounting slot and connected to the locking block 503, and the return spring 502 is in a compressed state when the locking block 503 is in the first working state, so that the return spring 502 can drive the locking block 503 to return to the second working state when the locking block 503 is in the first working state; the bottom of the locking block 503 is provided with a beveled portion 504, so that the locking block 503 switches from the second working state to the first working state when the beveled portion 504 is pressed; the lower mold 20 is provided with a slot 201 for the vertical insert 501 to be inserted when the mold is closed, and a connecting groove 202 opened at the bottom of the slot 201 for the locking block 503 to extend out of the slot 201 when it returns to the second working state.

[0021] Specifically, in this embodiment, during operation, ETPU foam material is placed in the lower mold 20, and then the drive assembly 40 drives the upper mold 30 to move so that the upper mold 30 and the lower mold 20 are closed. During the movement of the upper mold 30, the beveled part of the locking block 503 abuts against the groove of the slot 201. As the upper mold 30 moves downward, the locking block 503 gradually compresses the return spring 502 and returns to the mounting groove, i.e., switches to the first working state, which facilitates the insertion of the vertical insertion rod 501 into the slot 201. When the upper mold 30 moves into place, the locking block 503 moves to the position of the connecting groove 202, and the return spring 502... The spring force is restored, thus pushing the locking block 503 out of the mounting slot into the connecting slot 202. That is, the locking block 503 switches from the first working state to the second working state. Through the setting of this mold locking component 50, on the one hand, the upper mold 30 can be accurately moved into place when the mold is closed, and on the other hand, it ensures the tight engagement between the upper mold 30 and the lower mold 20 when the mold is closed. In addition, through the setting of the heat dissipation component 60, the lower mold 20 is cooled when the mold is closed, thereby cooling the ETPU foam, improving the overall production efficiency of the device, and making it suitable for industrial applications.

[0022] The ETPU foam molding machine disclosed in this utility model, through the setting of the mold locking component 50, enables the upper mold 30 to move precisely into place during mold closing, and ensures a tight fit between the upper mold 30 and the lower mold 20 during mold closing. In addition, through the setting of the heat dissipation component 60, the lower mold 20 is cooled when the mold closing is completed, thereby cooling the ETPU foam, improving the overall production efficiency of the device, and making it suitable for industrial applications.

[0023] In one specific embodiment, the system further includes a top plate 100, an upper connecting plate 70, a lower connecting plate 80, and guide rods 90. The top plate 100 is mounted above the bottom plate 10. The guide rods 90 are mounted at the four corners above the bottom plate 10 and connected to the top plate 100. The upper connecting plate 70 and the lower connecting plate 80 are positioned from top to bottom between the top plate 100 and the bottom plate 10 and connected to the guide rods 90. The lower mold 20 is mounted above the lower connecting plate 80. The upper mold 30 is mounted below the upper connecting plate 70. Specifically, the lower connecting plate 80 is fixedly connected to the guide rods 90; the upper connecting plate 70 is slidably connected to the guide rods 90. During operation, the drive assembly 40 drives the upper connecting plate 70 to move, thereby causing the upper mold 30 to move vertically. Simultaneously, the guide rods 90 ensure the directional movement of the upper connecting plate 70, thus guaranteeing the stability of the upper mold 30 and the lower mold 20 during mold closing and opening.

[0024] In one specific embodiment, the drive assembly 40 includes a first cylinder 401 mounted above the top plate 100 and connected to the upper connecting plate 70, for driving the upper connecting plate 70 to move vertically up and down along the guide rod 90. Specifically, in this embodiment, during operation, the first cylinder 401 drives the upper connecting plate 70 to move directionally along the guide rod 90, thereby driving the upper mold 30 to move vertically, ensuring the stability of the upper mold 30 when closing and opening the lower mold 20.

[0025] In one specific embodiment, the mold-locking assembly 50 further includes a side plate 505, a push plate 506, a push block 507, and a second cylinder 508. The side plate 505 is mounted on the side of the lower connecting plate 80. The push plate 506 is mounted on the side of the side plate 505 facing the lower mold 20. The push block 507 is mounted on the side of the push plate 506 facing the lower mold 20 and is arranged one by one with respect to the various connecting slots 202 on the side of the lower mold 20. The second cylinder 508 is mounted on the side plate 505 and connected to the push plate 506, and is used to drive the push plate 506 to move towards the lower mold 20, so that the push block 507 is engaged in the connecting slot 202. Specifically, after the mold is closed, the second cylinder 508 drives the push plate 506 to move, so that the push block 507 is engaged in the connecting slot 202, thereby causing the locking block 503 located in the connecting slot 202 to return to the mounting slot, thus facilitating the subsequent mold opening operation.

[0026] In one specific embodiment, the heat dissipation assembly 60 includes equidistant heat dissipation plates 601 mounted on the side of the lower mold 20, water-cooling pipes 602 inserted through each heat dissipation plate 601, and a water-cooling module 603 connected to the water-cooling pipes 602 for realizing water-cooled circulation of liquid in the water-cooling pipes 602. In this embodiment, the heat dissipation efficiency of the lower mold 20 is greatly improved by the arrangement of multiple heat dissipation plates 601, water-cooling pipes 602, and water-cooling module 603, making it suitable for industrial applications.

[0027] In one specific embodiment, the water-cooling module 603 includes an outlet pipe 604, a return pipe 605, and a refrigeration unit. The outlet pipe 604 is connected to the inlet end of each water-cooling pipe 602, and the return pipe 605 is connected to the outlet end of each water-cooling pipe 602. The refrigeration unit is connected to the outlet pipe 604 and the return pipe 605. Specifically, in this embodiment, the refrigeration module is used for liquid refrigeration and to output the refrigerated liquid to the outlet pipe 604 via a water pump installed within it. It should be noted that the refrigeration module is prior art and will not be described in detail here.

[0028] The ETPU foam molding machine disclosed in this utility model, through the setting of the mold locking component 50, enables the upper mold 30 to move precisely into place during mold closing, and ensures a tight fit between the upper mold 30 and the lower mold 20 during mold closing. In addition, through the setting of the heat dissipation component 60, the lower mold 20 is cooled when the mold closing is completed, thereby cooling the ETPU foam, improving the overall production efficiency of the device, and making it suitable for industrial applications.

[0029] The above embodiments only illustrate several implementation methods of this utility model, and their descriptions are relatively specific and detailed, but they should not be construed as limiting the scope of this utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model patent should be determined by the appended claims.

Claims

1. An ETPU foam molding machine, characterized in that: The device includes a base plate, a lower mold mounted above the base plate, an upper mold mounted above the lower mold, a drive assembly connected to the upper mold for driving the upper mold to move vertically relative to the lower mold, thereby enabling the upper and lower molds to close and open; a mold-locking assembly for restricting the relative movement of the upper and lower molds when they are closed; and a heat dissipation assembly mounted on the side of the lower mold. The mold-locking assembly includes a vertical insert rod, a return spring, and a locking block. The bottom of the vertical insert rod has a mounting groove. The locking block is slidably mounted in the mounting groove, so that the locking block has a first working state located within the mounting groove and can be automatically adjusted. The second working state is achieved by sliding the slot to one side of the vertical insert rod; the return spring is installed in the mounting slot and connected to the locking block, and the return spring is in a compressed state when the locking block is in the first working state, so that the return spring can drive the locking block to return to the second working state when the locking block is in the first working state; the bottom of the locking block is provided with a beveled portion, so that the locking block switches from the second working state to the first working state when the beveled portion is pressed; the upper side of the lower mold is provided with a slot for the vertical insert rod to be inserted when the mold is closed, and a connecting groove is opened at the bottom of the slot for the locking block to extend out of the slot when it returns to the second working state.

2. The ETPU foam molding machine according to claim 1, characterized in that: It also includes a top plate, an upper connecting plate, a lower connecting plate, and guide rods; the top plate is installed above the bottom plate; the guide rods are installed at the four corners above the bottom plate and connected to the top plate; the upper connecting plate and the lower connecting plate are arranged from top to bottom between the top plate and the bottom plate and are connected to the guide rods; the lower mold is installed above the lower connecting plate; the upper mold is installed below the upper connecting plate.

3. The ETPU foam molding machine according to claim 2, characterized in that: The drive assembly includes a first cylinder mounted above the top plate and connected to the upper connecting plate, used to drive the upper connecting plate to move vertically up and down along the guide rod.

4. The ETPU foam molding machine according to claim 2, characterized in that: The mold clamping assembly further includes a side plate, a push plate, a push block, and a second cylinder; the side plate is installed on the side of the lower connecting plate; the push plate is installed on the side of the side plate facing the lower mold; the push block is installed on the side of the push plate facing the lower mold and is arranged relative to each of the connecting slots on the side of the lower mold; the second cylinder is installed on the side plate and connected to the push plate, for driving the push plate to move toward the lower mold so that the push block is engaged in the connecting slot.

5. An ETPU foam molding machine according to claim 1, characterized in that: The heat dissipation assembly includes heat dissipation plates that are equidistantly arranged on the side of the lower mold, water-cooling pipes that pass through each heat dissipation plate, and a water-cooling module connected to the water-cooling pipes to realize the water-cooling circulation of liquid in the water-cooling pipes.

6. The ETPU foam molding machine according to claim 5, characterized in that: The water-cooled module includes an outlet pipe, a return pipe, and a refrigeration unit; the outlet pipe is connected to the inlet end of each of the water-cooled pipes, and the return pipe is connected to the outlet end of each of the water-cooled pipes; the refrigeration unit is connected to the outlet pipe and the return pipe.

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