Product double-ejection structure based on lower mold plate of mold

Abstract

The utility model discloses a product double ejection structure based on a lower template of a mold, and relates to the technical field of molds, the product double ejection structure comprises a push plate and an ejector pin mechanism, the ejector pin mechanism is arranged on the upper surface of the push plate and is used for demolding a product in the lower template, and the ejector pin mechanism is arranged to be an adjustable structure and is used for meeting the requirements of templates with different sizes. According to the product double-ejection structure based on the lower mold plate of the mold, a screw hole and a limiting stud are arranged on a movable part of the ejector pin mechanism, and then adjustment is carried out through an adjusting head, so that the movable part and a fixed part can be rapidly and relatively limited after the movable part is moved, and meanwhile, work of the ejector pin mechanism in the mold is not influenced; the adjusting part and the movable part are connected through the adjusting screw rod and the screw groove, so that the ejector pin head on the adjusting part can finely adjust the length of the ejector pin mechanism during rotation, the adjusting precision of the ejector pin mechanism is improved, the demolding requirements and precision of different products are met, and the working efficiency of the device is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of molds, in particular to a product double ejection structure based on a lower mold template. Background Art

[0002] An injection mold is a tool used to produce plastic products and to give them a complete structure and precise dimensions. Injection molding is a processing method used in the mass production of certain parts with complex shapes. Specifically, it refers to the process of injecting heated and molten plastic into the mold cavity under high pressure through an injection molding machine, and then cooling and solidifying it to obtain a molded product.

[0003] The utility model with authorization announcement number CN218139560U discloses an injection mold with an ejection mechanism, including a base, a lower mold is provided at the middle position of the top of the base, an ejection assembly is provided at the inner bottom of the lower mold, cooling parts are provided at the top of both sides of the lower mold, a U-shaped mounting plate is provided on both sides of the top of the base, a sleeve plate matching it is provided on both sides of the U-shaped mounting plate, and an upper mold matching the lower mold is provided at the middle position of the bottom of the sleeve plate.

[0004] As shown in the above-mentioned utility model, the existing ejector mechanism needs to use ejectors of different lengths when used with molds of different models. When the ejector pin needs to be replaced, the original ejector pin is removed and then a new ejector pin is installed. At the same time, not only the length of the ejector pin needs to be adjusted, but also the position of the ejector pin needs to be adjusted, which is time-consuming and labor-intensive. Utility Model Content

[0005] In view of the deficiencies in the prior art, the present invention provides a product double ejection structure based on a lower mold template to solve the above problems.

[0006] To achieve the above objectives, the present invention is implemented through the following technical solutions: a product double ejection structure based on the lower mold template, including:

[0007] A push plate, the bottom of which is arranged on the bottom plate of the lower template of the mold, and an oil cylinder is connected to the bottom plate of the lower template below the push plate to drive the push plate;

[0008] The ejector mechanism is arranged on the upper surface of the push plate, and there are two ejector mechanisms. The two ejector mechanisms are divided into a long ejector mechanism and a short ejector mechanism by their length. They are used to demold the product in the lower template. The ejector mechanism is set as an adjustable structure, and its length can be adjusted according to the size of the product in the mold to meet the needs of templates of different sizes.

[0009] Preferably, a plurality of telescopic rods are provided on the peripheral side of the oil cylinder, and the telescopic rods and the oil cylinder are fixed on the base. The movable end of the telescopic rod passes through the bottom plate of the lower template and is connected to the lower surface of the push plate, so as to improve the stability of the movement of the push plate. A displacement sensor for measuring the moving distance of the push plate is embedded in the middle of the upper surface of the push plate.

[0010] Preferably, the ejector mechanism consists of a fixed part, a movable part and an adjusting part. The fixed part is fixed on the push plate, and the movable part is arranged in the fixed part. The fixed part and the movable part are used to adjust the length of the ejector mechanism. The adjusting part is arranged on the top of the movable part and is used to demold the product in the mold, and the adjusting part is used to fine-tune the length of the ejector mechanism.

[0011] Preferably, the fixing member includes a pin sleeve fixed on the upper surface of the push plate, and guide grooves for guiding are provided on both sides of the opening of the pin sleeve, and linear empty grooves and damping grooves are respectively provided on the other two sides of the pin sleeve, and the damping grooves are filled with a damping layer for damping and limiting.

[0012] Preferably, the movable part includes a pin rod inserted in the pin sleeve, and guide plates adapted to the guide groove are fixed on both sides of the pin rod. A screw hole is provided at the lower end of the pin rod, and a limiting stud for limiting positioning passes through the screw hole. An adjusting head arranged in the linear slot is fixed at one end of the limiting stud, and the other end of the limiting stud corresponds to the damping layer in the damping slot. A screw groove for connecting the adjusting part is provided at the top end of the pin rod.

[0013] Preferably, the adjusting member includes a pin head arranged above the pin rod, an adjusting screw is fixed to the bottom end of the pin head, the adjusting screw is connected to the screw groove through internal and external threads, and the pin head and the adjusting screw cooperate to fine-tune the length of the pin mechanism.

[0014] Beneficial effects

[0015] The utility model provides a product double ejection structure based on the mold lower template. Compared with the existing technology, it has the following advantages:

[0016] 1. The dual ejector structure based on the mold's lower template features an adjustable ejector pin mechanism, allowing its length to be adjusted according to the needs of the product in the mold. This eliminates the need to replace the ejector pins to accommodate templates of different sizes. This improves the dual ejector structure's adaptability and versatility for a variety of product sizes and reduces mold development costs.

[0017] 2. The double ejection structure of the product based on the lower mold template is characterized by providing screw holes and limiting studs on the movable part of the ejector mechanism, which is then adjusted by an adjusting head. This allows the device to quickly limit the relative position of the movable part and the fixed part after moving the movable part without affecting the operation of the ejector mechanism in the mold. The adjusting part and the movable part are connected by adjusting screws and screw grooves, so that the ejector head on the adjusting part can fine-tune the length of the ejector mechanism during rotation, thereby improving the adjustment accuracy of the ejector mechanism of the device, meeting the demoulding requirements and precision of different products, and improving the working efficiency of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0019] Figure 2 This is a schematic diagram of the structure of the ejector mechanism of the utility model;

[0020] Figure 3 This is a schematic diagram of the fixing structure of the utility model;

[0021] Figure 4 This is a schematic diagram of the structure of the movable parts of the utility model;

[0022] Figure 5 This is a schematic structural diagram of the adjusting member of the present utility model.

[0023] In the figure: push plate 1, oil cylinder 11, telescopic rod 12, displacement sensor 13, ejector mechanism 2, fixing part 3, ejector sleeve 31, guide groove 32, linear slot 33, damping slot 34, movable part 4, ejector rod 41, guide plate 42, screw hole 43, limit stud 44, adjusting head 45, screw groove 46, adjusting part 5, ejector head 51, adjusting screw 52. 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] See also Figure 1-5 The utility model provides a product double ejection structure based on the lower mold template, including a push plate 1 and an ejector mechanism 2.

[0026] Specifically, the bottom of the push plate 1 is arranged at the bottom plate of the lower template of the mold, and a cylinder 11 is connected to the bottom plate of the lower template below the push plate 1 for driving the push plate 1. A plurality of telescopic rods 12 are arranged on the surrounding side of the cylinder 11. The telescopic rods 12 and the cylinder 11 are fixed on the base. The movable end of the telescopic rod 12 passes through the bottom plate of the lower template and is connected to the lower surface of the push plate 1, which is used to improve the stability of the movement of the push plate 1, ensure the smooth progress of the demoulding process, and reduce problems such as poor product demoulding or mold damage caused by the shaking of the push plate 1. A displacement sensor 13 for measuring the moving distance of the push plate 1 is inlaid in the middle of the upper surface of the push plate 1, which ensures the movement accuracy of the ejector mechanism 2 during operation and improves the integrity of the product during demoulding.

[0027] Specifically, the ejector mechanism 2 is arranged on the upper surface of the push plate 1, and there are two ejector mechanisms 2. The two ejector mechanisms 2 are divided into a long ejector mechanism 2 and a short ejector mechanism 2 by length. The long ejector mechanism 2 and the short ejector mechanism 2 are synchronous double ejection mechanisms, which are used to demold the product in the lower template, effectively ensure the balance of the product during the demolding process, and prevent the product from tilting or deformation. The ejector mechanism 2 is set to an adjustable structure, and its length can be adjusted according to the size of the product in the mold to meet templates of different sizes. The ejector mechanism 2 is composed of a fixed part 3, a movable part 4 and an adjusting part 5. The fixed part 3 is fixed on the push plate 1, and the movable part 4 is arranged in the fixed part 3. The fixed part 3 and the movable part 4 are used to adjust the length of the ejector mechanism 2. The adjusting part 5 is set at the top of the movable part 4 to demold the product in the mold, and the adjusting part 5 is used to fine-tune the length of the ejector mechanism 2, thereby improving the demolding accuracy.

[0028] More specifically, the fixing member 3 includes a pin sleeve 31 fixed to the upper surface of the push plate 1, and guide grooves 32 for guiding are provided on both sides of the opening of the pin sleeve 31. Linear slots 33 and damping slots 34 are respectively provided on the other two sides of the pin sleeve 31. The damping slots 34 are filled with a damping layer for damping and limiting. The movable member 4 includes a pin rod 41 inserted into the pin sleeve 31, and guide plates 42 adapted to the guide grooves 32 are fixed on both sides of the pin rod 41, which play a guiding role. A screw hole 43 is provided at the lower end of the pin rod 41, and a limiting stud 44 for limiting is passed through the screw hole 43. One end of the limiting stud 44 is fixed with an adjusting head 45 arranged in the linear slot 33 The adjusting head 45 is hidden in the linear slot 33, so that the movement of the ejector in the lower template is not affected, which meets the needs of most molds and does not require modification of the mold style. The other end of the limiting stud 44 corresponds to the damping layer in the damping groove 34, which plays a role in damping limit. The top of the ejector rod 41 is provided with a screw groove 46 for connecting the adjusting member 5. The adjusting member 5 includes an ejector head 51 arranged above the ejector rod 41. The bottom end of the ejector head 51 is fixed with an adjusting screw 52, ​​which is connected to the screw groove 46 through internal and external threads. The ejector head 51 and the adjusting screw 52 cooperate to fine-tune the length of the ejector mechanism 2, thereby improving the demoulding accuracy of the device.

[0029] Before the present device works, the length of the ejector mechanism 2 is first determined according to the needs of the mold. At this time, the ejector head 51 is moved upward, and the ejector head 51 drives the ejector rod 41 to move in the ejector sleeve 31 until the ejector head 51 moves to an appropriate length. At this time, the adjusting head 45 is driven to rotate by an external tool (such as a screwdriver or the like), and the adjusting head 45 drives the limiting stud 44 to rotate. The limiting stud 44 cooperates with the screw hole 43 to drive the limiting stud 44 to move until the limiting stud 44 cooperates with the damping layer in the damping groove 34 to play a damping limit role, limiting the movable part 4 and the fixed part 3 relative to each other, and then limiting the ejector mechanism 2, so that the ejector mechanism 2 is maintained at an appropriate length. Then, the ejector head 51 is screwed, and the ejector head 51 cooperates with the adjusting screw 52 to adjust the height of the ejector head 51, so as to fine-tune the ejector mechanism 2 to an appropriate length, thereby improving the adjustment accuracy of the present device.

[0030] At the same time, the contents not described in detail in this specification belong to the existing technology known to those skilled in the art, and the model parameters of each electrical appliance are not specifically limited, and conventional equipment can be used.

[0031] 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 apparatus that includes a list of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such process, method, article, or apparatus.

[0032] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. The double ejection structure of the product based on the mold lower template is characterized by: include: A push plate, the bottom of which is arranged on the bottom plate of the lower template of the mold, and an oil cylinder is connected to the bottom plate of the lower template below the push plate to drive the push plate; The ejector mechanism is arranged on the upper surface of the push plate, and there are two ejector mechanisms. The two ejector mechanisms are divided into a long ejector mechanism and a short ejector mechanism by length, and are used to demold the product in the lower template. The ejector mechanism is set as an adjustable structure so that the length can be adjusted according to the size of the product in the mold.

2. The product double ejection structure based on the mold lower template according to claim 1, characterized in that: A plurality of telescopic rods are provided on the peripheral side of the oil cylinder. The telescopic rods and the oil cylinder are fixed on the base. The movable ends of the telescopic rods pass through the bottom plate of the lower template and are connected to the lower surface of the push plate, so as to improve the stability of the movement of the push plate. A displacement sensor for measuring the moving distance of the push plate is embedded in the middle of the upper surface of the push plate.

3. The product double ejection structure based on the mold lower template according to claim 1, characterized in that: The ejector mechanism consists of a fixed part, a movable part and an adjusting part. The fixed part is fixed on the push plate, and the movable part is arranged in the fixed part. The fixed part and the movable part are used to adjust the length of the ejector mechanism. The adjusting part is arranged on the top of the movable part and is used to demold the product in the mold, and the adjusting part is used to fine-tune the length of the ejector mechanism.

4. The product double ejection structure based on the mold lower template according to claim 3, characterized in that: The fixing part includes a pin sleeve fixed on the upper surface of the push plate, and guide grooves for guiding are provided on both sides of the opening of the pin sleeve. A linear empty groove and a damping groove are respectively provided on the other two sides of the pin sleeve, and the damping groove is filled with a damping layer for damping and limiting.

5. The product double ejection structure based on the mold lower template according to claim 3, characterized in that: The movable part includes a pin rod inserted in the pin sleeve, and guide plates adapted to the guide groove are fixed on both sides of the pin rod. A screw hole is provided at the lower end of the pin rod, and a limiting stud for limiting position passes through the screw hole. An adjusting head arranged in the linear slot is fixed to one end of the limiting stud, and the other end of the limiting stud corresponds to the damping layer in the damping groove. A screw groove for connecting the adjusting part is provided at the top of the pin rod.

6. The product double ejection structure based on the mold lower template according to claim 3, characterized in that: The adjusting member includes a pin head arranged above the pin rod, and an adjusting screw is fixed to the bottom end of the pin head. The adjusting screw is connected to the screw groove through internal and external threads, and the pin head and the adjusting screw cooperate to fine-tune the length of the pin mechanism.

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