A lateral thread cutting die structure

Abstract

The utility model provides a lateral thread-twisting die structure, including a panel, a movable die plate, a fixed die plate, an ejector plate and a bottom plate, wherein the movable die plate is embedded with an upper die core, the fixed die plate is embedded with a lower die core, the upper die core is provided with an upper molding groove, the lower die core is provided with a lower molding groove, and the upper molding groove and the lower molding groove constitute a cavity; a thread-twisting mechanism is installed on the same side of the panel and the fixed die plate, the thread-twisting mechanism includes an upper base, a lower base and a screw, the upper base is installed on the side of the panel, the lower base is installed on the side of the fixed die plate, one end of the screw can be slidably installed on the lower base, and the other end can be slidably extended into the cavity, a gear is installed on one side of the screw, a vertical rack is installed on the upper base, and a molding thread is arranged on one end of the screw extending into the cavity. When the mold is opened, the panel and the movable die plate move upward to drive the rack to move upward, the rack drives the gear to rotate and then drives the screw to rotate and withdraw from the internal thread of the product, so that the movable die plate and the fixed die plate are separated and the screw thread-twisting core is pulled at the same time, the product is demoulded, and the production efficiency of the product is improved.

Description

Technical Field

[0001] The utility model relates to the field of molds, in particular to a lateral thread twisting mold structure. Background Art

[0002] A mold is a tool used to make molded products. Products of different shapes can be made by using different shapes of molds. Traditional products with molded internal threads are formed by twisting and core pulling. For example, the Chinese utility model patent application number is CN202023285646.9, and the name is: a twisting and core pulling mechanism, which requires a separately arranged drive motor to drive a drive rack to drive a twisting assembly to twist the threads and pull the core. Therefore, at least two steps are required for demolding the molded product. First, the movable mold plate and the fixed mold plate are separated, and then the motor is driven to twist the threads. The production efficiency of the demolded products is low. Therefore, there is an urgent need for a mold structure that can twist the threads while separating the movable mold plate and the fixed mold plate. Utility Model Content

[0003] The utility model provides a lateral thread twisting die structure, aiming to solve the technical problem that the thread twisting cannot be realized while the movable die plate and the fixed die plate are separated when the internal thread product is demoulded by the existing die.

[0004] To achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a lateral thread-cutting mold structure, comprising a panel, a movable template, a fixed template, a ejector plate and a bottom plate from top to bottom, the movable template is embedded with an upper mold core, the fixed template is embedded with a lower mold core, the upper mold core is provided with an upper molding groove, the lower mold core is provided with a lower molding groove, and the upper molding groove and the lower molding groove constitute a cavity; a thread-cutting mechanism is installed on the same side of the panel and the fixed template, the thread-cutting mechanism comprises an upper base, a lower base and a screw, the upper base is installed on the side of the panel, the lower base is installed on the side of the fixed template, one end of the screw can be slidably installed on the lower base, and the other end can slidably pass through the movable template and extend into the cavity, a gear is installed on the side of the screw close to the lower base, a vertical rack is installed on the upper base, and a molding thread is arranged on the end of the screw extending into the cavity.

[0005] Furthermore, a stopper is further installed on one side of the fixed template close to the threading mechanism, and a spring is sleeved on the screw rod, one end of the spring abuts against the gear, and the other end abuts against the stopper.

[0006] Furthermore, the upper base is further provided with a push rod, and the push rod is placed at an end of the screw rod away from the cavity.

[0007] Furthermore, the width of the rack is X, the width of the gear is Y, and X>Y.

[0008] Furthermore, the screw rod comprises a sleeve rod and a shaft rod, the sleeve rod and the shaft rod are connected by a latch pin, and the shaft rod is provided with the molded thread.

[0009] Furthermore, the lower base is further provided with a shaft sleeve, and the screw rod passes through the shaft sleeve.

[0010] Compared with the prior art, the beneficial effects of the utility model are:

[0011] The utility model has a lateral thread-twisting mold structure with a reasonable and ingenious design, including a panel, a movable template, a fixed template, an ejector plate and a bottom plate, the movable template is embedded with an upper mold core, the fixed template is embedded with a lower mold core, the upper mold core is provided with an upper molding groove, the lower mold core is provided with a lower molding groove, and the upper molding groove and the lower molding groove constitute a cavity; a thread-twisting mechanism is installed on the same side of the panel and the fixed template, the thread-twisting mechanism includes an upper base, a lower base and a screw, the upper base is installed on the side of the panel, the lower base is installed on the side of the fixed template, one end of the screw can be slidably installed on the lower base, and the other end can be slidably extended through the movable template into the cavity, a gear is installed on the side of the screw close to the lower base, a vertical rack is installed on the upper base, and a molding thread is arranged on one end of the screw extending into the cavity. After the utility model is injection molded, the panel and the movable template move upward to drive the rack to move upward, the rack drives the gear to rotate, and the gear drives the screw to rotate and withdraw from the internal thread of the product, so that the movable template and the fixed template are separated and the screw thread-twisting core is withdrawn from the internal thread of the product, thereby improving the production efficiency of the product. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] In order to more clearly illustrate the technical solution of the implementation mode of the utility model, the drawings required for use in the implementation mode will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the utility model and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without paying creative work.

[0013] Figure 1 It is a structural schematic diagram of the lateral thread twisting die structure of the utility model;

[0014] Figure 2 It is a schematic diagram of the panel and the movable platen of the lateral thread cutting die structure of the utility model;

[0015] Figure 3 It is a schematic diagram of the fixed die plate and the thread twisting mechanism structure of the lateral thread twisting die structure of the utility model;

[0016] Figure 4 The utility model is a schematic diagram of the structure of the thread twisting mechanism of the lateral thread twisting die structure.

[0017] Main component symbols

[0018] 10. panel; 101. upper base; 1011. rack; 1012. push rod;

[0019] 20. Moving mold plate; 201. Moving mold core;

[0020] 30, fixed mold plate; 301, fixed mold core; 302, stopper; 303, spring; 304, screw; 3041, gear; 3042, forming thread; 305, lower base; 3051, shaft sleeve;

[0021] 40. Ejector plate;

[0022] 50. Base plate. DETAILED DESCRIPTION

[0023] In order to make the purpose, technical scheme and advantages of the embodiments of the utility model clearer, the technical scheme in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work belong to the scope of protection of the utility model. Therefore, the following detailed description of the embodiments of the utility model provided in the drawings is not intended to limit the scope of the utility model for which protection is sought, but merely represents the selected embodiments of the utility model. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work belong to the scope of protection of the utility model.

[0024] In the present invention, unless otherwise clearly specified and limited, the terms "install", "connect", "connect", "fix" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0025] In the present utility model, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes that the first feature is directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0026] Example

[0027] Reference Figure 1-3 As shown, the utility model discloses a lateral thread-twisting mold structure, including a panel 10, a movable mold plate 20, a fixed mold plate 30, an ejector plate 40 and a bottom plate 50 from top to bottom, the movable mold plate is embedded with an upper mold core, the fixed mold plate 30 is embedded with a lower mold core, the upper mold core is provided with an upper molding groove, the lower mold core is provided with a lower molding groove, and the upper molding groove and the lower molding groove constitute a cavity; specifically, when the mold is closed, hot melt adhesive enters the cavity from the glue inlet of the panel 10 for injection molding the main body of the product.

[0028] Reference Figure 1-4As shown, a threading mechanism is installed on the same side of the panel 10 and the fixed mold plate 30, and the threading mechanism includes an upper base 101, a lower base 305 and a screw 304. The upper base 101 is installed on the side of the panel 10, and the lower base 305 is installed on the side of the fixed mold plate 30. One end of the screw 304 is slidably installed on the lower base 305, and the other end is slidably extended through the movable mold plate 20 into the cavity. A gear 3041 is installed on the side of the screw 304 close to the lower base 305, and a vertical rack 1011 is installed on the upper base 101. A molding thread 3042 is set at the end of the screw 304 extending into the cavity. Specifically, during mold closing and injection molding, the gear 3041 meshes with the upper side of the rack 1011, and one end of the screw 304 provided with a molding thread 3042 is placed in the cavity to form the internal thread of the product; the upper base 101 is further equipped with a push rod 1012, and the push rod 1012 is placed at the end of the screw 304 away from the cavity. The upper base 101 moves downward to drive the push rod 1012 to press down, and the lower side of the push rod 1012 supports the screw 304. On the one hand, it can prevent the screw 304 from extending into the cavity and not being in place, and on the other hand, it can prevent the screw 304 from being pushed out by excessive injection pressure. When the mold is opened, the panel 10 and the movable mold plate 20 move upward to drive the rack 1011 to move upward, the rack 1011 drives the gear 3041 to rotate, the gear 3041 drives one end of the screw 304 with the molding thread 3042 to rotate and withdraw from the internal thread of the product, and the other end passes through the lower base 305 to slide, so that the screw 304 is twisted and cored out while the movable mold plate 20 and the fixed mold plate 30 are separated, and withdraws from the internal thread of the product, thereby improving the production efficiency of the product. Further, a stopper 302 is further installed on the side of the fixed mold plate 30 close to the twisting mechanism, and a spring 303 is sleeved on the screw 304, one end of the spring 303 abuts against the gear 3041, and the other end abuts against the stopper 302. When the mold is closed, the gear 3041 compresses the spring 303 against the stopper 302, and the opening mode spring 303 recovery process pushes the gear 3041 to move toward the side away from the cavity, which plays a role in assisting the screw 304 to escape from the cavity.

[0029] Reference Figure 1-4 As shown, the width of the rack 1011 is X, and the width of the gear 3041 is Y, X>Y, because when the gear 3041 meshes with the rack 1011, the gear 3041 needs to move in a direction perpendicular to the length of the rack 1011 to achieve the extension or withdrawal of the screw 304 into or out of the cavity, so the width of the rack 1011 is greater than the width of the gear 3041 to ensure that the gear 3041 can move back and forth while the rack 1011 meshes and rolls.

[0030] Reference Figure 4 As shown, the screw rod 304 includes a sleeve rod and a shaft rod, the sleeve rod and the shaft rod are connected by a pin, and the shaft rod is provided with a molded thread 3042. The screw rod 304 connected by the pin is convenient for maintenance and replacement of molded threads 3042 of different models.

[0031] Reference Figure 3 As shown, the lower base 305 is further installed with a shaft sleeve 3051, and the screw rod 304 passes through the shaft sleeve 3051. When the screw rod 304 moves on the lower base 305, the shaft sleeve 3051 prevents the screw rod 304 from directly contacting the lower base 305, and the movement of the screw rod 304 on the lower base 305 is smoother.

[0032] The above description is only the preferred implementation of the utility model, and is not intended to limit the utility model. For those skilled in the art, the utility model can have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A lateral thread cutting die structure, characterized in that: It includes a panel, a movable template, a fixed template, an ejector plate and a bottom plate from top to bottom, the movable template is embedded with an upper mold core, the fixed template is embedded with a lower mold core, the upper mold core is provided with an upper molding groove, the lower mold core is provided with a lower molding groove, and the upper molding groove and the lower molding groove constitute a cavity; a threading mechanism is installed on the same side of the panel and the fixed template, the threading mechanism includes an upper base, a lower base and a screw rod, the upper base is installed on the side of the panel, the lower base is installed on the side of the fixed template, one end of the screw rod is slidably installed on the lower base, and the other end is slidably extended through the movable template into the cavity, a gear is installed on the side of the screw rod close to the lower base, a vertical rack is installed on the upper base, and a molding thread is arranged on one end of the screw rod extending into the cavity.

2. The lateral thread cutting mold structure according to claim 1, characterized in that: A stopper is further installed on one side of the fixed template close to the threading mechanism, and a spring is sleeved on the screw rod, one end of the spring abuts against the gear, and the other end abuts against the stopper.

3. The lateral thread cutting mold structure according to claim 1, characterized in that: The upper base is further provided with a push rod, and the push rod is placed at an end of the screw rod away from the cavity.

4. The lateral thread cutting die structure according to claim 1, characterized in that: The width of the rack is X, the width of the gear is Y, and X>Y.

5. The lateral thread cutting die structure according to claim 1, characterized in that: The screw rod comprises a sleeve rod and a shaft rod, the sleeve rod and the shaft rod are connected by a latch pin, and the shaft rod is provided with the formed thread.

6. The lateral thread cutting die structure according to claim 1, characterized in that: The lower base is further provided with a shaft sleeve, through which the screw rod passes.

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