Die structure without joint line on sealing surface

Abstract

The utility model relates to the technical field of dies, and discloses a die structure without joint lines on a sealing surface, which comprises a first die, a second die arranged on the right side of the first die, a third die arranged on the right side of the second die, and a fourth die arranged on the right side of the third die. A connecting block is arranged between the third mold and the fourth mold, a connector is formed in the top of the fourth mold, an injection molding mechanism is arranged in the second mold, a movable mold closing mechanism is arranged in the injection molding mechanism, and a product body is arranged in the injection molding mechanism. The inner cavity formed between the upper forming mold and the lower forming mold is subjected to injection molding through the injection molding connector, accurate positioning injection molding of a product is conveniently achieved, deviation generated during mold closing injection molding is avoided, and demolding is conveniently achieved while the thread injection molding requirement of a product body is met through movement of the first mold and cooperation of a fixing screw.

Description

Technical Field

[0001] The utility model relates to the technical field of molds, in particular to a mold structure with no parting line on the sealing surface. Background Art

[0002] Injection molding, also known as injection molding, is a molding method that combines injection and molding. Its advantages include fast production speed, high efficiency, automated operation, a wide variety of designs and colors, shapes ranging from simple to complex, and sizes ranging from large to small. Furthermore, it produces precise product dimensions, is easily updated, and can produce parts with complex shapes. Injection molding is suitable for mass production and complex-shaped products. During the injection molding process, injection molds are often required for processing and production.

[0003] In the existing technology, it is often necessary to use the mold closing and demolding process to complete the processing and collection of injection molded products. Since the production requirements of injection molded finished products often require thread processing at specific positions and have high product processing accuracy, when the thread processing position needs to be demolded, empty positions are likely to appear, resulting in the appearance of mold lines, etc., which affects the processing accuracy and reduces the waterproofness of the product. Therefore, it is necessary to improve a mold structure with no mold line on the sealing surface to solve the above problems. Utility Model Content

[0004] The purpose of the present utility model is to provide a mold structure with no parting line on the sealing surface, so as to solve the problems raised in the above background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solution: a mold structure with no parting line on the sealing surface, comprising a first mold, a second mold is arranged on the right side of the first mold, a third mold is arranged on the right side of the second mold, a fourth mold is arranged on the right side of the third mold, a connecting block is arranged between the third mold and the fourth mold, an interface is arranged on the top of the fourth mold, an injection molding mechanism is arranged inside the second mold, a movable clamping mechanism is arranged inside the injection molding mechanism, and a product body is arranged inside the injection molding mechanism.

[0006] Preferably, the injection molding mechanism includes an upper molding mold, the upper molding mold is fixedly connected to the inside of the second mold, the lower molding mold is fixedly connected to the inside of the third mold, the injection joint is fixedly connected to the inside of the lower molding mold, the molding block is fixedly connected to the inside of the lower molding mold, the first limit block is fixedly connected to the inside of the lower molding mold, and the second limit block is fixedly connected to the inside of the lower molding mold, so as to realize precise positioning injection molding of the product and avoid deviation during mold closing injection molding.

[0007] Preferably, the upper molding die contacts the lower molding die, and four first limit blocks are provided, with two of the first limit blocks forming a group, and the two groups of the first limit blocks are symmetrically distributed with the right midline of the lower molding die as the axis of symmetry, so as to facilitate a more stable processing process.

[0008] Preferably, the product body is arranged between the upper molding mold and the lower molding mold, and four second limit blocks are provided, with each two second limit blocks forming a group, and the two groups of second limit blocks are symmetrically distributed with the right midline of the lower molding mold as the symmetry axis, so as to facilitate a more stable injection molding process.

[0009] Preferably, the movable mold clamping mechanism includes a pulling straight block, which is arranged inside the first mold, and a fixing screw is provided between the pulling straight block and the first mold, a core is fixedly connected to the inside of the upper molding mold, and an inner sliding pulling block is slidably connected to the inside of the core, and the right side of the pulling straight block is fixedly connected to a limiting guide rail, so that when the pulling straight block moves, the limiting guide rail is used to drive the inner sliding pulling block to slide toward the inside of the pulling straight block, thereby facilitating the completion of the thread injection molding requirements of the product body and demoulding at the same time, and cooperating with the design of the sealing surface to avoid the occurrence of a mold line during injection molding of the product, thereby improving the production quality of the product and avoiding accidents such as water leakage in the later stage.

[0010] Preferably, the fixing screw is rotatably connected to the first mold, and the fixing screw is threadedly connected to the pulling straight block, so that the demoulding process is more stable.

[0011] Preferably, grooves are provided at positions corresponding to the inner sliding block and the limiting guide rail, and the inner sliding block is slidably connected to the limiting guide rail. The contact position between the inner sliding block and the product body is designed as a sealing surface, which makes the linkage process more stable.

[0012] Compared with the prior art, the present invention provides a mold structure with no parting line on the sealing surface, which has the following beneficial effects:

[0013] 1. The mold structure with no parting line on the sealing surface is provided. Through the provided injection molding mechanism, during use, the inner cavity formed between the upper molding mold and the lower molding mold is injection molded through the provided injection joint, and the molding block, the first limit block and the second limit block are cooperated to facilitate the precise positioning injection molding of the product to avoid deviation during mold closing injection molding.

[0014] 2. The mold structure with no parting line on the sealing surface is provided with a movable mold clamping mechanism. During use, the first mold is moved in conjunction with the fixing screws to move the pulling straight block. When the pulling straight block moves, the limiting guide rail is used to drive the inner sliding block to slide inward of the pulling straight block, thereby facilitating demoulding while completing the thread injection molding requirements of the product body. In conjunction with the design of the sealing surface, the parting line of the product during injection molding is avoided, the product production quality is improved, and accidents such as water leakage in the later stage are avoided. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly introduces the drawings required for describing the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without inventive work.

[0016] Figure 1 This is a schematic diagram of the front structure of the utility model;

[0017] Figure 2 This is a schematic diagram of the internal structure of the utility model;

[0018] Figure 3 This is a schematic diagram of the structure of the injection molding mechanism of the utility model;

[0019] Figure 4 This is a schematic cross-sectional structure diagram of the injection molding mechanism of the utility model;

[0020] Figure 5 This is a schematic diagram of the structure of the movable mold clamping mechanism of the utility model;

[0021] Figure 6 This is a schematic diagram of the internal structure of the movable clamping mechanism of the utility model;

[0022] Figure 7 This is a schematic diagram of the product body structure of the utility model.

[0023] In the figure: 1. First mold; 2. Second mold; 3. Third mold; 4. Fourth mold; 5. Connecting block; 6. Interface; 7. Injection molding mechanism; 71. Upper molding mold; 72. Lower molding mold; 73. Injection joint; 74. Molding block; 75. First limit block; 76. Second limit block; 8. Movable mold clamping mechanism; 81. Sliding straight block; 82. Fixing screw; 83. Core; 84. Inner sliding block; 85. Limiting guide rail; 9. Product body. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0025] In this utility model, unless otherwise specified or limited, the terms "installed," "connected," "connect," "fixed," etc. should be understood in a broad sense. For example, they can refer to fixed connection, detachable connection, or integration; mechanical connection, electrical connection; direct connection, indirect connection through an intermediate medium, internal communication between two components, or interaction between two components. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on specific circumstances.

[0026] Example 1:

[0027] See also Figure 1-4 The utility model provides a technical solution: a mold structure with no parting line on the sealing surface, comprising a first mold 1, a second mold 2 is arranged on the right side of the first mold 1, a third mold 3 is arranged on the right side of the second mold 2, a fourth mold 4 is arranged on the right side of the third mold 3, a connecting block 5 is arranged between the third mold 3 and the fourth mold 4, an interface 6 is arranged on the top of the fourth mold 4, an injection molding mechanism 7 is arranged inside the second mold 2, a movable clamping mechanism 8 is arranged inside the injection molding mechanism 7, and a product body 9 is arranged inside the injection molding mechanism 7.

[0028] Furthermore, the injection molding mechanism 7 includes an upper molding mold 71, the upper molding mold 71 is fixedly connected to the inside of the second mold 2, the lower molding mold 72 is fixedly connected to the inside of the third mold 3, the injection joint 73 is fixedly connected to the inside of the lower molding mold 72, the molding block 74 is fixedly connected to the inside of the lower molding mold 72, the first limit block 75 is fixedly connected to the inside of the lower molding mold 72, and the second limit block 76 is fixedly connected to the inside of the lower molding mold 72, so as to realize precise positioning injection molding of the product and avoid deviation during mold closing injection molding.

[0029] Furthermore, the upper molding die 71 contacts the lower molding die 72, and four first limit blocks 75 are provided, with each two first limit blocks 75 forming a group, and the two groups of first limit blocks 75 are symmetrically distributed with the right midline of the lower molding die 72 as the axis of symmetry, so as to facilitate a more stable processing process.

[0030] Furthermore, the product body 9 is arranged between the upper molding mold 71 and the lower molding mold 72, and four second limit blocks 76 are provided, with each two second limit blocks 76 forming a group, and the two groups of second limit blocks 76 are symmetrically distributed with the right center line of the lower molding mold 72 as the symmetry axis, so as to facilitate a more stable injection molding process.

[0031] Example 2:

[0032] See also Figure 5-7 , and combined with Example 1, it is further obtained that the movable mold clamping mechanism 8 includes a twitching straight block 81, which is arranged inside the first mold 1, and a fixing screw 82 is provided between the twitching straight block 81 and the first mold 1. A core 83 is fixedly connected to the interior of the upper molding mold 71, and an inner sliding drawing block 84 is slidably connected to the interior of the core 83. The right side of the twitching straight block 81 is fixedly connected to a limiting guide rail 85, so that when the twitching straight block 81 moves, the limiting guide rail 85 is used to drive the inner sliding drawing block 84 to slide toward the inside of the twitching straight block 81, thereby facilitating the completion of the thread injection molding requirements of the product body 9 and the demoulding at the same time. With the design of the sealing surface, the product can avoid the occurrence of a parting line during injection molding, thereby improving the production quality of the product and avoiding accidents such as water leakage in the later stage.

[0033] Furthermore, the fixing screw 82 is rotatably connected to the first mold 1 , and the fixing screw 82 is threadedly connected to the pulling straight block 81 , so that the demoulding process is more stable.

[0034] Furthermore, grooves are provided at corresponding positions of the inner sliding block 84 and the limiting guide rail 85, and the inner sliding block 84 and the limiting guide rail 85 are slidingly connected. The contact position between the inner sliding block 84 and the product body 9 is designed as a sealing surface, which makes the linkage process more stable.

[0035] During actual operation, when this device is used, first, the first mold 1, the second mold 2, the third mold 3, and the fourth mold 4 are set to cooperate with the connecting block 5 and the interface 6 to realize the opening and closing between the upper molding mold 71 and the lower molding mold 72, and perform the later injection molding work. The inner cavity formed between the upper molding mold 71 and the lower molding mold 72 is injection molded by the injection molding joint 73, and the molding block 74, the first limit block 75 and the second limit block 76 are cooperated to realize precise positioning injection molding of the product requirements. When the injection molding is completed, the first mold 1 is moved, and the fixing screw 82 is cooperated to move the pulling straight block 81, thereby moving the limiting guide rail 85, and cooperating with the core 83 to slide the inner sliding block 84, and cooperating with the design of the sealing surface to avoid the occurrence of a mold line on the product during injection molding.

[0036] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or device comprising a series of elements includes not only those elements, but also other elements not explicitly listed, or elements inherent to such process, method, article, or device. In the absence of further limitations, an element defined by the phrase "comprising a..." does not exclude the presence of additional identical elements in the process, method, article, or device comprising the element.

Claims

1. A mold structure with no parting line on the sealing surface, comprising a first mold (1), characterized in that: A second mold (2) is provided on the right side of the first mold (1), a third mold (3) is provided on the right side of the second mold (2), a fourth mold (4) is provided on the right side of the third mold (3), a connecting block (5) is provided between the third mold (3) and the fourth mold (4), an interface (6) is provided on the top of the fourth mold (4), an injection molding mechanism (7) is provided inside the second mold (2), a movable mold clamping mechanism (8) is provided inside the injection molding mechanism (7), and a product body (9) is provided inside the injection molding mechanism (7).

2. The mold structure with no parting line on the sealing surface according to claim 1, characterized in that: The injection molding mechanism (7) comprises an upper molding die (71), the upper molding die (71) is fixedly connected to the interior of the second mold (2), the interior of the third mold (3) is fixedly connected to a lower molding die (72), the interior of the lower molding die (72) is fixedly connected to an injection joint (73), the interior of the lower molding die (72) is fixedly connected to a molding block (74), the interior of the lower molding die (72) is fixedly connected to a first limiting block (75), and the interior of the lower molding die (72) is fixedly connected to a second limiting block (76).

3. The mold structure with no parting line on the sealing surface according to claim 2, characterized in that: The upper molding die (71) contacts the lower molding die (72), and four first limiting blocks (75) are provided, with two first limiting blocks (75) forming a group, and the two groups of first limiting blocks (75) are symmetrically distributed with the right midline of the lower molding die (72) as the symmetry axis.

4. The mold structure with no parting line on the sealing surface according to claim 2, characterized in that: The product body (9) is arranged between the upper molding die (71) and the lower molding die (72), and four second limit blocks (76) are provided, with two second limit blocks (76) forming a group, and the two groups of second limit blocks (76) are symmetrically distributed with the right midline of the lower molding die (72) as the symmetry axis.

5. The mold structure with no parting line on the sealing surface according to claim 2, characterized in that: The movable mold clamping mechanism (8) comprises a twitching straight block (81), the twitching straight block (81) is arranged inside the first mold (1), a fixing screw (82) is arranged between the twitching straight block (81) and the first mold (1), a core (83) is fixedly connected inside the upper molding mold (71), an inner sliding twitching block (84) is slidably connected inside the core (83), and a limiting guide rail (85) is fixedly connected to the right side of the twitching straight block (81).

6. The mold structure with no parting line on the sealing surface according to claim 5, characterized in that: The fixing screw (82) is rotatably connected to the first mold (1), and the fixing screw (82) is threadedly connected to the pulling straight block (81).

7. The mold structure with no parting line on the sealing surface according to claim 5, characterized in that: Grooves are provided at corresponding positions of the inner sliding block (84) and the limiting guide rail (85), and the inner sliding block (84) and the limiting guide rail (85) are slidably connected. The contact position between the inner sliding block (84) and the product body (9) is designed as a sealing surface.

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