Plastic mold with adjustable spacer

Abstract

This utility model relates to the field of plastic mold technology, specifically to a plastic mold with an adjustable pad. It includes a fixed base, a pad slidably mounted on the top of the fixed base, and four guide pillars connected to the top of the pad in a rectangular arrangement. A lower mold and an upper mold are slidably mounted on the surfaces of the guide pillars. Limit grooves are formed on both sides of the lower mold. A protective shell is connected to one side of the fixed base. This utility model, through its adjustable mechanism, allows for convenient adjustment of the pad's height, thereby adjusting the overall height of the mold. This ensures the mold is correctly installed on the equipment, reducing equipment load and the risk of damage. It also controls the closing height to reduce material leakage or defects on the plastic part surface. The main heat dissipation groove, secondary heat dissipation groove, and water circulation pipe inside the mold quickly dissipate the heat generated during molding, preventing overheating and ensuring product quality.

Description

Technical Field

[0001] This utility model relates to the field of plastic mold technology, specifically to a plastic mold that facilitates the adjustment of the pad block. Background Technology

[0002] Plastic molds are tools used in the plastics processing industry in conjunction with plastic molding machines to give plastic products a complete shape and precise dimensions. Due to the wide variety of plastics and processing methods, as well as the varying complexity of plastic molding machines and plastic products, there are also many different types and structures of plastic molds.

[0003] Most devices require different heights when installing molds, making it difficult to flexibly adjust the total height of the mold according to the equipment requirements. This can lead to difficulties in mold installation, and may even require additional equipment or tools to assist in the installation, increasing installation time and costs. At the same time, an unsuitable mold height may increase the load on the equipment, increasing the risk of equipment damage. Moreover, due to poor heat dissipation, longer cooling time or higher cooling energy consumption may be required to ensure that the mold temperature drops to a safe range. This not only increases production costs but may also affect product quality. Therefore, a plastic mold with adjustable pads is proposed. Utility Model Content

[0004] The purpose of this invention is to provide a plastic mold for easily adjusting the pad block, so as to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: It includes a fixed base, a pad slidably disposed at the top of the fixed base, four guide pillars connected to the top of the pad, and the four guide pillars arranged in a rectangular pattern. A lower mold and an upper mold are slidably disposed on the surfaces of the guide pillars respectively. Limiting grooves are formed on both sides of the lower mold. A protective shell is connected to one side of the fixed base, and an adjustment mechanism is connected inside the protective shell. Ceramic plates are connected to both sides of the inner walls of the lower and upper molds. Injection pipes are connected to both sides of the lower and upper molds, and a connecting nozzle is connected to one end of each injection pipe. Multiple main heat dissipation grooves and secondary heat dissipation grooves are formed at the bottom of the lower mold and the top of the upper mold.

[0006] Preferably, a motor is connected inside the protective shell, a transmission rod is connected to the output end of the motor, and a transmission bevel gear is connected to one end of the transmission rod.

[0007] Preferably, the adjusting mechanism includes a lead screw connected to the bottom of the fixed base and four telescopic rods rotatably disposed on the inner wall of the fixed base. A rotating bevel gear is connected to the surface of the lead screw, and the rotating bevel gear meshes with a transmission bevel gear. A rotating plate is threaded onto the surface of the lead screw. An adjusting disc is rotatably disposed at one end of the four telescopic rods that are close to each other. The rotating plate is rotatably disposed inside the adjusting disc. A hollow support column is connected to the top of the adjusting disc, and the top of the hollow support column is connected to the bottom of the pad.

[0008] Preferably, limit blocks are connected to the limit grooves on both sides of the top of the pad.

[0009] Preferably, multiple venting grooves are provided on both sides of the top of the lower mold and both sides of the bottom of the upper mold.

[0010] Preferably, a water circulation pipe is connected to both the bottom end of the lower mold and the top end of the upper mold, and an inlet and a outlet are respectively connected to the sides of the water circulation pipe that are far apart from each other.

[0011] Preferably, the ceramic plate has multiple through holes on one side, and each through hole penetrates both the lower mold and the upper mold.

[0012] Compared with the prior art, the beneficial effects of this utility model are: by adjusting the setting of the adjustment mechanism, the height of the pad can be easily adjusted, thereby adjusting the total height of the mold, so that the mold can be correctly installed on the equipment, reducing the equipment load and the risk of equipment damage. It can also control the closing height to reduce material leakage or defects on the surface of the plastic part. Through the main heat dissipation groove, secondary heat dissipation groove and water circulation pipe inside the mold, the heat generated during the molding process can be quickly dissipated to prevent the mold from overheating and affecting product quality. Attached Figure Description

[0013] Fig. 1 A front view schematic diagram of a plastic mold for easy adjustment of pads;

[0014] Fig. 2 This is an exploded structural diagram of a plastic mold for easy adjustment of pads;

[0015] Fig. 3 This is a front sectional view of the adjustment structure of a plastic mold for easy adjustment of the pad.

[0016] In the diagram: 1. Fixed base; 2. Pad block; 3. Guide column; 4. Lower mold; 5. Limiting groove; 6. Upper mold; 7. Protective shell; 8. Adjustment mechanism; 81. Motor; 82. Transmission rod; 83. Transmission bevel gear; 84. Lead screw; 85. Rotating bevel gear; 86. Rotating plate; 87. Adjusting disc; 88. Hollow support column; 89. Telescopic rod; 9. Limiting block; 10. Ceramic plate; 11. Exhaust groove; 12. Injection pipe; 13. Connecting nozzle; 14. Main heat dissipation groove; 15. Secondary heat dissipation groove; 16. Water circulation pipe; 17. Through hole. Detailed Implementation

[0017] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0018] Please see Figs. 1-3 This utility model provides a technical solution, including a fixed base 1, a pad 2 slidably disposed on the top of the fixed base 1, four guide posts 3 connected to the top of the pad 2, and the four guide posts 3 are arranged in a rectangular shape. A lower mold 4 and an upper mold 6 are slidably disposed on the surface of the guide posts 3 respectively. Limiting grooves 5 are opened on both sides of the lower mold 4. A protective shell 7 is connected to one side of the fixed base 1. An adjustment mechanism 8 is connected inside the protective shell 7. Ceramic plates 10 are connected to both sides of the inner wall of the lower mold 4 and the upper mold 6. Injection pipes 12 are connected to both sides of the lower mold 4 and the upper mold 6. A connecting nozzle 13 is connected to one end of the injection pipe 12. Multiple main heat dissipation grooves 14 and secondary heat dissipation grooves 15 are opened at the bottom of the lower mold 4 and the top of the upper mold 6.

[0019] A motor 81 is connected inside the protective shell 7. A transmission rod 82 is connected to the output end of the motor 81. A transmission bevel gear 83 is connected to one end of the transmission rod 82. The function of this mechanism is to transmit the rotational motion of the motor 81 to the subsequent adjustment mechanism by setting the motor 81 inside the protective shell 7 and using the transmission rod 82 and the transmission bevel gear 83. This realizes the automated adjustment of the height of the pad block, reduces the tediousness and error of manual operation, and improves production efficiency and adjustment accuracy.

[0020] The adjustment mechanism 8 includes a lead screw 84 connected to the bottom of the fixed base 1 and four telescopic rods 89 rotatably mounted on the inner wall of the fixed base 1. A rotating bevel gear 85 is connected to the surface of the lead screw 84 and meshes with a transmission bevel gear 83. A rotating plate 86 is threaded onto the surface of the lead screw 84. An adjustment disk 87 is rotatably mounted at one end of the four telescopic rods 89 that is close to each other. The rotating plate 86 is rotatably mounted inside the adjustment disk 87. A hollow support column 88 is connected to the top of the adjustment disk 87 and the top of the hollow support column 88 is connected to the bottom of the pad 2. Its function is to enable the power of the motor 81 to be accurately and stably transmitted to the adjustment disk 87 through the cooperation of the lead screw 84, the rotating bevel gear 85, the transmission bevel gear 83, and the rotating plate 86, thereby achieving precise adjustment of the height of the pad 2, avoiding the errors and instability that may be caused by manual adjustment, and improving the accuracy and reliability of mold adjustment.

[0021] Limiting blocks 9 are connected to the limiting grooves 5 on both sides of the top of the pad 2. Their function is to cooperate with the limiting grooves 5 on both sides of the lower mold 3 to play a precise positioning role during the mold closing process.

[0022] Multiple venting grooves 11 are provided on both sides of the top of the lower mold 4 and both sides of the bottom of the upper mold 6. The function of these venting grooves is to ensure that the air and volatile gases in the mold cavity are quickly discharged when the plastic is injected, so as to avoid product defects such as bubbles, scorching or incomplete molding caused by gas retention.

[0023] Water circulation pipes 16 are connected to the bottom of the lower mold 4 and the top of the upper mold 6. Water inlets and drains are connected to the opposite sides of the water circulation pipes 16. The function of the water circulation pipes 16 at the bottom of the lower mold 4 and the top of the upper mold 6 is to efficiently remove the heat generated by the mold during plastic injection molding by forming a circulating water path through the water inlets and drains.

[0024] Multiple through holes 17 are provided on one side of the ceramic plate 10, and each through hole 17 penetrates the lower mold 4 and the upper mold 6. The purpose of the through hole 17 is to allow heat to be transferred to the outside of the mold more quickly through these holes. It works in conjunction with the cooling system such as the water circulation pipe 16 to further improve the cooling efficiency, ensure uniform temperature distribution of the mold, and avoid local overheating.

[0025] Working principle: When the height of pad 2 needs to be adjusted, the motor 81 inside the protective shell 7 is started. The output end of the motor 81 drives the transmission rod 82 to rotate, and the transmission bevel gear 83 at one end of the transmission rod 82 rotates accordingly. Since the rotating bevel gear 85 meshes with the transmission bevel gear 83, the rotation of the transmission bevel gear 83 will drive the rotating bevel gear 85 and the lead screw 84 to rotate together. The lead screw 84 has a rotating plate 86 threaded on its surface. When the lead screw 84 rotates, the rotating plate 86 will move up and down along the lead screw 84. The end of the four telescopic rods 89 that is close to each other is rotatably equipped with an adjusting plate 87. The rotating plate 86 is rotatably set inside the adjusting plate 87. The up and down movement of the rotating plate 86 will drive the adjusting plate 87 to move up and down. The top of the adjusting plate 87 is connected to There is a hollow support column 88, the top of which is connected to the bottom of the pad 2, thereby driving the pad 2 to move up and down to adjust the height of the pad. When heat dissipation and cooling are required, an external water source is connected, and cooling water enters the water circulation pipe 16 through the water inlet. During the flow in the pipe, it absorbs the heat generated by the mold and then discharges from the drain outlet, realizing rapid heat dissipation of the mold and preventing the mold from overheating and affecting product quality. In addition, the main heat dissipation groove 14 and the secondary heat dissipation groove 15 increase the heat dissipation area of ​​the mold and further improve the heat dissipation efficiency. During the plastic injection process, the air and volatile gases in the mold cavity can be quickly discharged through the exhaust groove 11 to avoid product defects caused by gas retention, such as bubbles, scorching, or incomplete molding.

[0026] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0027] Although 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 alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A plastic mold for easy adjustment of pad blocks, comprising a fixing base (1), characterized in that: A pad (2) is slidably disposed on the top of the fixed base (1). Four guide posts (3) are connected to the top of the pad (2) and are arranged in a rectangular shape. A lower mold (4) and an upper mold (6) are slidably disposed on the surface of the guide posts (3). Limiting grooves (5) are opened on both sides of the lower mold (4). A protective shell (7) is connected to one side of the fixed base (1). An adjustment mechanism (8) is connected inside the protective shell (7). Ceramic plates (10) are connected to both sides of the inner walls of the lower mold (4) and the upper mold (6). An injection pipe (12) is connected to both sides of the lower mold (4) and the upper mold (6). A connecting nozzle (13) is connected to one end of the injection pipe (12). Multiple main heat dissipation grooves (14) and secondary heat dissipation grooves (15) are opened at the bottom of the lower mold (4) and the top of the upper mold (6).

2. The plastic mold for easily adjustable pads according to claim 1, characterized in that: A motor (81) is connected inside the protective shell (7), and a transmission rod (82) is connected to the output end of the motor (81). A transmission bevel gear (83) is connected to one end of the transmission rod (82).

3. The plastic mold for easily adjustable pads according to claim 1, characterized in that: The adjustment mechanism (8) includes a lead screw (84) connected to the bottom of the fixed base (1) and four telescopic rods (89) rotatably disposed on the inner wall of the fixed base (1). A rotating bevel gear (85) is connected to the surface of the lead screw (84), and the rotating bevel gear (85) meshes with the transmission bevel gear (83). A rotating plate (86) is threaded on the surface of the lead screw (84). An adjustment disk (87) is rotatably disposed at one end of the four telescopic rods (89) that are close to each other. The rotating plate (86) is rotatably disposed inside the adjustment disk (87). A hollow support column (88) is connected to the top of the adjustment disk (87), and the top of the hollow support column (88) is connected to the bottom of the pad (2).

4. The plastic mold for easily adjustable pads according to claim 1, characterized in that: Limiting blocks (9) are connected to the limiting grooves (5) on both sides of the top of the pad (2).

5. A plastic mold for easily adjusting the pad block according to claim 1, characterized in that: Multiple venting grooves (11) are provided on both sides of the top of the lower mold (4) and both sides of the bottom of the upper mold (6).

6. A plastic mold for easily adjusting the pad block according to claim 1, characterized in that: Water circulation pipes (16) are connected to the bottom of the lower mold (4) and the top of the upper mold (6), and water inlets and drains are respectively connected to the sides of the water circulation pipes (16) that are far apart from each other.

7. A plastic mold for easily adjusting the pad block according to claim 1, characterized in that: The ceramic plate (10) has multiple through holes (17) on one side, and each through hole (17) penetrates the lower mold (4) and the upper mold (6).

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