A kind of temperature measuring seat hot pressing mold

Abstract

The utility model provides a temperature measuring seat hot pressing mold, including an upper mold and a lower mold. A middle plate is provided between the upper mold and the lower mold, and a core strip is provided between the upper mold and the middle plate. An upper mold cavity is provided on the bottom surface of the upper mold, a middle mold core and a middle mold cavity are provided on the top surface of the middle plate, a lower mold cavity is provided on the bottom surface of the middle plate, and the lower mold cavity and the middle mold cavity are communicated. A lower mold core is provided on the top surface of the lower mold, and a core is provided on the core strip. A lower groove is provided on the bottom surface of the upper mold, and an upper groove is provided on the top surface of the middle plate. When the mold is closed, the lower groove and the upper groove constitute a core strip groove, and the core strip is arranged in the above-mentioned core strip groove. The lower mold core extends into the lower mold cavity, the middle mold core is arranged in the upper mold cavity, and the core is arranged in the upper mold cavity. The upper mold cavity, the middle mold cavity and the lower mold core jointly form a molding cavity, and the product is hot-pressed in the above-mentioned molding cavity. The utility model ensures that the undercut part is smoothly demolded, avoids damage to the product, ensures product quality, and improves product quality.

Description

Technical Field

[0001] The utility model belongs to the field of mold processing, and in particular relates to a temperature measuring seat hot pressing mold. Background Art

[0002] Thermoforming is to heat and soften the plastic in a mold, and then apply pressure to form it. Common thermoforming molds are two-plate molds and three-plate molds. The two-plate mold consists of only a male mold and a female mold. The male mold and the female mold are combined to form a mold cavity. The plastic is thermoformed in the mold cavity. This mold structure is relatively simple and suitable for flat parts and products with simple shapes. The three-plate mold includes a male mold, a female mold and an intermediate plate. The three-plate mold is usually used to manufacture parts with multiple holes, inserts or multiple structures. The manufacture of the temperature measuring seat usually uses a three-plate mold for thermoforming, but it was found during the production process that due to the undercut on the bottom bump of the temperature measuring seat, the undercut will be embedded in the mold during the mold opening process. Forced demolding will damage the appearance of the product, causing scratches, cracks or deformation, affecting the quality of the product.

[0003] Therefore, the above problems need to be solved urgently. Utility Model Content

[0004] Purpose of the utility model: In order to overcome the above shortcomings, the utility model provides a temperature measuring seat hot pressing mold, which improves the original three-plate mold into a four-plate mold, and controls the demoulding sequence to avoid damage to the product due to the undercut design during the demoulding process, thereby ensuring product quality, improving product quality, and improving production efficiency.

[0005] Technical solution: In order to achieve the above-mentioned purpose, the utility model provides a temperature measuring seat hot pressing mold, including an upper mold and a lower mold. A middle plate is provided between the upper mold and the lower mold, and a core strip is provided between the upper mold and the middle plate. An upper mold cavity is provided on the bottom surface of the upper mold, a middle mold core and a middle mold cavity are provided on the top surface of the middle plate, a lower mold cavity is provided on the bottom surface of the middle plate, and the lower mold cavity and the middle mold cavity are communicated. A lower mold core is provided on the top surface of the lower mold, and a core strip is provided on the core strip. A lower groove is provided on the bottom surface of the upper mold, and an upper groove is provided on the top surface of the middle plate. When the mold is closed, the lower groove and the upper groove constitute a core strip groove, and the core strip is arranged in the above-mentioned core strip groove. The lower mold core extends into the lower mold cavity, the middle mold core is arranged in the upper mold cavity, and the core strip is arranged in the upper mold cavity. The upper mold cavity, the middle mold cavity, the lower mold cavity and the lower mold core jointly form a molding cavity, and the product is hot-pressed in the above-mentioned molding cavity. When the product is hot-pressed, the middle plate and the lower mold are first closed, and then the upper mold, the core strip and the middle plate are closed and hot-pressed in sequence, and the product is hot-pressed in the molding cavity. When splitting the mold, first separate the middle plate from the lower mold, and then separate the upper mold, core strip, and middle plate in sequence. Since the middle plate and lower mold are separated first, the lower mold core is separated from the convex platform on the bottom of the product, and the side of the convex lower mold core is left empty. In the subsequent demoulding process, the convex can be deformed to the side of the original lower mold core, so that the undercut part can be demoulded smoothly, avoiding damage to the product, ensuring product quality, and improving product quality.

[0006] Furthermore, in the above-mentioned temperature measuring seat hot pressing mold, the width of the lower groove is equal to that of the upper groove, and the depth of the lower groove is equal to that of the upper groove. The two symmetrical lower grooves and upper grooves can provide precise guidance and positioning for the core, ensuring that the core can be accurately embedded in the corresponding position when the mold is closed, thereby ensuring the dimensional accuracy of the product.

[0007] Furthermore, in the above-mentioned temperature measuring seat hot pressing mold, when the mold is closed, the top surface of the core groove and the top surface of the core are against each other, the bottom surface of the core groove and the bottom surface of the core are against each other, and the side wall of the core and the side wall of the core groove are against each other. The core and the core groove are tightly matched, which can increase the rigidity of the mold, reduce the deviation and shaking of the core during the hot pressing process, and maintain the product quality and the repetitive accuracy of the mold.

[0008] Furthermore, in the above-mentioned temperature measuring seat hot pressing mold, two middle mold cores are provided, and the middle mold cores are mirror-imaged along the symmetry line of the upper mold cavity.

[0009] Furthermore, in the above-mentioned temperature measuring seat hot pressing mold, in order to ensure the accurate positioning of the core strip and the middle plate and improve the mold repeat positioning accuracy, the core strip is provided with a positioning hole and the middle plate is provided with a guide column. When the mold is closed, the guide column is arranged in the positioning hole.

[0010] Furthermore, in the above-mentioned temperature measuring seat hot pressing mold, in order to facilitate the operation of the core bar during mold closing and mold separation, the length of the core bar is greater than the length of the upper mold, the lower mold and the middle plate.

[0011] Furthermore, in the above-mentioned temperature measuring seat hot pressing mold, the molding cavities are provided with 2 or more, and multiple molding cavities can produce multiple products at the same time, which greatly increases the output per unit time, improves production efficiency, reduces the production cost of the product, and meets the needs of mass production.

[0012] It can be seen from the above technical scheme that the utility model has the following beneficial effects: the temperature measuring seat hot pressing mold of the utility model is designed as a four-plate mold, which controls the lower mold to be separated before other templates, ensures smooth demolding of the undercut part, avoids damage to the product, ensures product quality, and improves product quality. A core strip groove composed of a lower groove and an upper groove is provided to reduce the displacement and shaking of the core during the hot pressing process, improve product quality and mold repetition accuracy. Multiple molding cavities produce multiple products at the same time, greatly increasing the output per unit time, improving production efficiency, reducing product production costs, and meeting mass production needs. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 This is a schematic diagram of the structure of the hot pressing mold of the temperature measuring seat of the utility model;

[0014] Figure 2 is a front view of the upper die;

[0015] Figure 3 is a front view of the core strip;

[0016] Figure 4 is a front view of the middle plate;

[0017] Figure 5 is a front view of the lower die;

[0018] Figure 6 It is a schematic diagram of mold clamping of the utility model.

[0019] In the figure: 1, upper mold, 11, upper mold cavity, 12, lower groove, 2, lower mold, 21, lower mold core, 3, middle plate, 31, middle mold core, 32, middle mold cavity, 33, lower mold cavity, 34, upper groove, 35, guide pin, 4, core strip, 41, core, 42, positioning hole, 43, core strip groove. DETAILED DESCRIPTION

[0020] Example 1

[0021] like Figure 1-6 A temperature measuring seat hot pressing mold shown includes an upper mold 1 and a lower mold 2. A middle plate 3 is provided between the upper mold 1 and the lower mold 2, and a core strip 4 is provided between the upper mold 1 and the middle plate 3. In order to facilitate the operation of the core strip 4 during mold closing and mold separation, the length of the core strip 4 is greater than the length of the upper mold 1, the lower mold 2, and the middle plate 3. An upper mold cavity 11 is provided on the bottom surface of the upper mold 1, and a middle mold core 31 and a middle mold cavity 32 are provided on the top surface of the middle plate 3. Two middle mold cores 31 are provided, and the middle mold cores 31 are mirrored along the symmetry line of the upper mold cavity 11. A lower mold cavity 33 is provided on the bottom surface of the middle plate 3, and the lower mold cavity 33 is connected to the middle mold cavity 32. The lower mold 2 is provided with a lower mold core 21, and the core strip 4 is provided with a core 41. A lower groove 12 is provided on the bottom surface of the upper mold 1, and an upper groove 34 is provided on the top surface of the middle plate 3. The width of the lower groove 12 and the upper groove 34 are equal, and the depth of the lower groove 12 and the depth of the upper groove 34 are equal. When the mold is closed, the lower groove 12 and the upper groove 34 form a core strip groove 43, and the core strip 4 is arranged in the above-mentioned core strip groove 43. The top surface of the core strip groove 43 is against the top surface of the core 41, the bottom surface of the core strip groove 43 is against the bottom surface of the core 41, and the side wall of the core 41 is against the side wall of the core strip groove 43. The lower mold core 21 extends into the lower mold cavity 33, the middle mold core 31 is arranged in the upper mold cavity 11, and the core 41 is arranged in the upper mold cavity 11. The upper mold cavity 11, the middle mold cavity 32, the lower mold cavity 33 and the lower mold core 21 together form a molding cavity 5, and there are 2 or more molding cavities 5. The product is hot-pressed in the above-mentioned molding cavity 5. In order to ensure the precise positioning of the core strip 4 and the middle plate 3 and improve the mold repetitive positioning accuracy, the core strip 4 is provided with a positioning hole 42, and the middle plate 3 is provided with a guide column 35. When the mold is closed, the guide column 35 is arranged in the positioning hole 42. When the product is hot pressed, the middle plate 3 and the lower mold 2 are first molded together, and then the upper mold 1, the core strip 4, and the middle plate 3 are molded together and hot pressed in sequence, and the product is hot pressed in the molding cavity 9. When the mold is separated, the middle plate 3 and the lower mold 2 are separated first, and then the upper mold 1, the core strip 4, and the middle plate 3 are separated in sequence.

[0022] The above embodiments are exemplary, and their purpose is to illustrate the technical concept and features of the utility model so that people familiar with this field can understand the content of the utility model and implement it accordingly, and they cannot limit the protection scope of the utility model in turn. Any equivalent changes or modifications made according to the spirit of the utility model should be included in the protection scope of the utility model.

Claims

1. A temperature measuring seat hot pressing mold, characterized in that: The mold comprises an upper mold (1) and a lower mold (2); a middle plate (3) is provided between the upper mold (1) and the lower mold (2); a core strip (4) is provided between the upper mold (1) and the middle plate (3); an upper mold cavity (11) is provided on the bottom surface of the upper mold (1); a middle mold core (31) and a middle mold cavity (32) are provided on the top surface of the middle plate (3); a lower mold cavity (33) is provided on the bottom surface of the middle plate (3); the lower mold cavity (33) and the middle mold cavity (32) are connected; a lower mold core (21) is provided on the top surface of the lower mold (2); and a core strip (41) is provided on the core strip (4); a lower groove is provided on the bottom surface of the upper mold (1) (12), an upper groove (34) is provided on the top surface of the middle plate (3); when the mold is closed, the lower groove (12) and the upper groove (34) form a core strip groove (43), and the core strip (4) is arranged in the above-mentioned core strip groove (43); the lower mold core (21) extends into the lower mold cavity (33), the middle mold core (31) extends into the upper mold cavity (11), the core (41) is arranged in the upper mold cavity (11), and the upper mold cavity (11), the middle mold cavity (32), the lower mold cavity (33) and the lower mold core (21) together form a molding cavity (5), and the product is hot-pressed in the above-mentioned molding cavity (5).

2. The temperature measuring seat hot pressing mold according to claim 1, characterized in that: The lower groove (12) and the upper groove (34) have the same width, and the lower groove (12) and the upper groove (34) have the same depth.

3. The temperature measuring seat hot pressing mold according to claim 1, characterized in that: When the mold is closed, the top surface of the core groove (43) abuts against the top surface of the core (41), the bottom surface of the core groove (43) abuts against the bottom surface of the core (41), and the side wall of the core (41) abuts against the side wall of the core groove (43).

4. The temperature measuring seat hot pressing mold according to claim 1, characterized in that: Two middle mold cores (31) are provided, and the middle mold cores (31) are mirror-imaged along the symmetry line of the upper mold cavity (11).

5. The temperature measuring seat hot pressing mold according to claim 1, characterized in that: The core strip (4) is provided with a positioning hole (42), and the middle plate (3) is provided with a guide column (35); when the mold is closed, the guide column (35) is arranged in the positioning hole (42).

6. The temperature measuring seat hot pressing mold according to claim 1, characterized in that: The length of the core strip (4) is greater than the lengths of the upper die (1), the lower die (2) and the middle plate (3).

7. The temperature measuring seat hot pressing mold according to claim 1, characterized in that: The molding cavities (5) are provided with two or more.

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