Convenient mold fixing mechanism of TPU (thermoplastic polyurethane) foaming forming machine

Abstract

The utility model discloses a convenient mold fixing mechanism of a TPU (thermoplastic polyurethane) foaming forming machine, and relates to the technical field of TPU foaming forming machine molds. The mold comprises an upper mold body, a lower mold body, an auxiliary frame, an upper guide rod and a fixing assembly, the upper guide rod is installed at the side end of the upper mold body in a locking mode, a lower guide rod is installed at the side end of the lower mold body in a locking mode, and the upper guide rod and the lower guide rod adjust the matching relation between the upper mold body and the lower mold body by moving into a sliding opening. The outer wrapping shell is erected and installed on the lower die, limiting openings are formed in the side ends of the upper die and the lower die, springs are nested outside the displacement rods, and the side ends of the displacement rods are connected with clamping blocks. The upper die is limited to be separated from the top end of the lower die by matching and connecting the upper connector of the clamping block with the connecting rod at one side end of the upper die; and when the clamping block moves into the limiting opening, a lateral acting force is applied to an upper limiting block in the upper mold and a lower limiting block in the lower mold through the spring, so that the mold connecting and fixing effect is guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of TPU foaming molding machine molds, in particular to a convenient mold fixing mechanism for a TPU foaming molding machine. Background Art

[0002] The convenient mold fixing mechanism of traditional TPU foam molding machines lacks a guide structure when joining the upper and lower molds, making it difficult to secure the upper mold to the lower mold in one go and requiring frequent adjustments. If the molds are large and heavy, the upper mold fails to securely fit the lower mold in one go, and moving the upper mold can easily wear the mating structure at the bottom of the upper mold. This wear, over time, can reduce the seal between the upper and lower molds. Improving the efficiency of the mating and mounting between the upper and lower molds and effectively securing them is crucial, hence the present application. Utility Model Content

[0003] The utility model provides a convenient mold fixing mechanism for a TPU foaming molding machine, which overcomes the deficiencies described in the background technology.

[0004] The technical solution adopted by the utility model to solve its technical problems is:

[0005] The cam is secured to the upper and lower mold ends and is secured to the mold base upon which the cam is secured.

[0006] The convenient mold fixing mechanism of the TPU foam molding machine in the utility model can ensure the matching accuracy of the upper mold and the lower mold. At the same time, a fixing component is provided at the side end position where the upper mold and the lower mold are spliced. The core is matched and connected with the connecting rod at one side end of the upper mold through the upper connecting port of the clamping block, thereby limiting the upper mold from being separated from the top end of the lower mold; when the clamping block moves into the limit port, it is affected by the elastic potential energy of the spring. When it returns to its initial state, it will apply a lateral force to the upper limit block in the upper mold and the lower limit block in the lower mold, so that the clamping block will limit the separation of the upper mold and the lower mold to a certain extent, thereby ensuring the mold connection and fixing effect.

[0007] A preferred technical solution: a push plate is fixedly provided on the displacement rod, one end of the spring contacts the surface of the outer shell, and the other end is connected to the push plate.

[0008] A preferred technical solution: a plurality of notches are adapted on the side of the clamping block close to the connecting rod, so that when the clamping block rotates through the limit opening, the connecting rod does not restrict the clamping block.

[0009] A preferred technical solution: the shape of the limiting opening is adapted to the clamping block, and the outer shape of the clamping block is a rectangle.

[0010] A better technical solution: the limit port forms an upper limit block on the upper mold.

[0011] A better technical solution: the limit opening forms a lower limit block on the lower mold.

[0012] A better technical solution: the upper mold and the lower mold are of the same height.

[0013] A preferred technical solution: a mold cavity is provided in the upper mold and the lower mold.

[0014] A better technical solution: the side surface of the upper mold is slidably matched with the auxiliary frame.

[0015] A preferred technical solution: the side end of the upper mold is slidably matched with the inner side of the outer shell.

[0016] By adopting the above technical solution, the beneficial effects of the utility model are:

[0017] This utility model uses the upper connection port of the clamping block to mate with the connecting rod at one end of the upper mold, limiting the upper mold from separating from the top of the lower mold. When the clamping block moves into the limiting port, a spring exerts a lateral force on the upper limit block in the upper mold and the lower limit block in the lower mold. This, in turn, limits the separation of the upper and lower molds to a certain extent, thereby ensuring the mold connection and fixation. The structure is streamlined, effectively controlling application costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0019] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0020] Figure 2 It is a cross-sectional view of the present invention.

[0021] Description of main reference numerals:

[0022] 1. Upper mold; 2. Lower mold; 3. Auxiliary frame; 4. Upper guide rod; 5. Lower guide rod; 6. Sliding port; 7. Fixed assembly; 71. Outer shell; 72. Displacement rod; 73. Spring; 74. Limit port; 75. Block; 76. Connecting rod; 77. Connecting port; 78. Push plate; 79. Upper limit block; 710. Lower limit block. DETAILED DESCRIPTION

[0023] like Figure 1-Figure 2 As shown, a convenient mold fixing mechanism of a TPU foam molding machine includes an upper mold 1, a lower mold 2, an auxiliary frame 3, an upper guide rod 4, a lower guide rod 5 and a fixing assembly 7 that assists the upper mold 1 in connecting with the lower mold 2. The upper guide rod 4 is fixedly installed on the side end of the upper mold 1, and the lower guide rod 5 is fixedly installed on the side end of the lower mold 2. The auxiliary frame 3 is provided with a sliding opening 6 that matches the upper guide rod 4 and the lower guide rod 5. The upper guide rod 4 and the lower guide rod 5 adjust the matching relationship between the upper mold 1 and the lower mold 2 by moving into the sliding opening 6. The fixing assembly 7 includes an outer shell 71, a positioning The shift rod 72, spring 73, limit opening 74, block 75, and outer shell 71 are mounted on the lower mold 2, and the side ends of the upper mold 1 and the lower mold 2 are provided with limit openings 74. The spring 73 is nested outside the shift rod 72, and the side end of the shift rod 72 is connected to the block 75. The shift rod 72 drives the block 75 to pass through the limit opening 74 by squeezing the spring 73. The shift rod 72 is matched with the outer shell 71, and a connecting rod 76 is provided on the inner side surface of the upper mold 1. A connecting opening 77 is provided on the block 75, and the connecting rod 76 is adapted to the connecting opening 77.

[0024] Structurally, the lower mold 2 is equipped with an auxiliary frame 3 and a mounting assembly 7. After the upper mold 1 is slid downward from above and mounted on the lower mold 2, a compression spring 73 causes the displacement rod 72, connected to the clamping block 75, to rotate and move into the stopper 74. Once installed, the connecting rod 76 and the connection port 77 are mutually connected and restrained; the clamping block 75 prevents the upper mold 1 from easily separating from the lower mold 2. It should be noted that the mold cavity is not shown in the drawings; its structure is specifically designed according to the structure of the corresponding foam product.

[0025] Furthermore, a push plate 78 is fixedly provided on the displacement rod 72 , one end of the spring 73 contacts the surface of the outer shell 71 , and the other end is connected to the push plate 78 .

[0026] Furthermore, the block 75 is adapted with a plurality of notches on the side close to the connecting rod 76, so that when the block 75 rotates through the limit opening 74, the connecting rod 76 does not restrict the block 75. In other words, more notches can be flexibly provided to prevent the block 75 from being restricted when the block 75 rotates and moves into the limit opening 74.

[0027] Furthermore, the shape of the limiting opening 74 matches that of the clamping block 75 , and the outer shape of the clamping block 75 is a rectangle.

[0028] Furthermore, the limiting opening 74 forms an upper limit block 79 on the upper mold 1 .

[0029] Furthermore, the limiting opening 74 forms a lower limiting block 710 on the lower mold 2 .

[0030] If the block 75 is a rectangle, it is divided into a long side and a short side. The vertical distance between the upper limit block 79 and the lower limit block 710 is the hole through which the block 75 passes. The short side is matched with this hole (that is, if you want the block 75 to pass through the limit opening 74, you need to adjust the block 75 so that it is the short side in the vertical direction). That is, after the block 75 passes through, rotate the block 75 to restore the state of the block 75 with the long side in the vertical direction, so that the block 75 can be restricted by the upper limit block 79 and the lower limit block 710.

[0031] Furthermore, the upper mold 1 and the lower mold 2 are of the same height.

[0032] Furthermore, a mold cavity is provided in the upper mold 1 and the lower mold 2.

[0033] Furthermore, the side surface of the upper mold 1 is slidably matched with the auxiliary frame 3 .

[0034] Furthermore, the side end of the upper mold 1 is slidably fitted with the inner side of the outer shell 71 .

[0035] During use, the upper mold 1 is inserted downward from above the lower mold 2 until the upper guide rod 4 and the lower guide rod 5 are precisely matched with the sliding opening 6 on the auxiliary frame 3. This can prevent the mold splicing and sealing structure from being damaged due to inaccurate matching when the upper mold 1 is placed on the lower mold 2 during manual operation. The fixing assembly 7 controls the clamping block 75 to be engaged with the limiting opening 74, thereby limiting the connection between the clamping block 75 and the connecting rod 76 at the side end of the upper mold 1, thereby ensuring the connection and fixation between the upper mold 1 and the lower mold 2. The structure of the utility model is streamlined, effectively controlling the application cost.

[0036] The above description is merely a preferred embodiment of the present invention and therefore cannot be used to limit the scope of implementation of the present invention. In other words, equivalent changes and modifications made according to the patent scope of the present invention and the contents of the specification should still fall within the scope of the present invention.

Claims

1. A convenient mold fixing mechanism for a TPU foam molding machine, characterized in that: The cam is fixed to the upper mold base and the lower mold base with a plurality of movable parts, and the movable part is fixed to the lower mold base with a plurality of movable parts.

2. The convenient mold fixing mechanism of the TPU foaming molding machine according to claim 1, characterized in that: A push plate is fixedly provided on the displacement rod, one end of the spring contacts the surface of the outer shell, and the other end is connected to the push plate.

3. The convenient mold fixing mechanism of the TPU foam molding machine according to claim 1, characterized in that: The clamping block is adapted with a plurality of notches on one side of the connecting rod, so that when the clamping block rotates through the limiting opening, the connecting rod does not restrict the clamping block.

4. The convenient mold fixing mechanism of the TPU foam molding machine according to claim 1, characterized in that: The shape of the limiting opening is adapted to the clamping block, and the outer shape of the clamping block is a rectangle.

5. The convenient mold fixing mechanism of the TPU foam molding machine according to claim 1, characterized in that: The limiting opening forms an upper limit block on the upper mold.

6. The convenient mold fixing mechanism of the TPU foam molding machine according to claim 1, characterized in that: The limiting opening forms a lower limiting block on the lower mold.

7. The convenient mold fixing mechanism of the TPU foam molding machine according to claim 1, characterized in that: The upper mold and the lower mold are of the same height.

8. The convenient mold fixing mechanism of the TPU foam molding machine according to claim 1, characterized in that: A mold cavity is provided in the upper mold and the lower mold.

9. The convenient mold fixing mechanism of the TPU foaming molding machine according to claim 1, characterized in that: The side surface of the upper mold is slidably matched with the auxiliary frame.

10. The convenient mold fixing mechanism of the TPU foam molding machine according to claim 1, characterized in that: The side end of the upper mold is slidably matched with the inner side of the outer shell.

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