Temperature control type injection mold

Abstract

The utility model relates to the field of injection molds, and discloses a temperature control type injection mold which comprises a fixed mold, the fixed mold is fixed on the top surface of a bearing plate, a PLC (Programmable Logic Controller) is fixed on the top surface of the bearing plate, a movable mold is arranged above the fixed mold, a containing groove is formed in the top surface of the fixed mold, and a temperature control device is arranged in the containing groove. A containing groove is formed in the left side and the right side of the fixed mold, a metal frame is fixed to the inner wall of the containing groove, the left side and the right side of the fixed mold are each provided with two fixing holes, the fixing holes communicate with the containing groove, metal columns are fixed to the inner walls of the fixing holes, and one ends of the metal columns make contact with the outer wall of the metal frame. According to the utility model, through the matching of the metal frame and the metal column, heat generated by a product in the cavity of the fixed mold can be uniformly absorbed, so that the heat is quickly conducted to circulating cooling water in the accommodating groove under the action of cooling water in the water storage tank, and the temperature of the fixed mold is uniformly reduced; and the quality of an injection product is prevented from being influenced by deformation of the product in the fixed mold due to overheating.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of injection mold, concretely is a temperature control type injection mold. BACKGROUND

[0002] Injection mold is a kind of processing method used when batch producing some complex shape components, and injection mold includes upper mold and lower mold, after the upper mold and the lower mold are pasted, the material heated and melted is injected into mold cavity by high pressure, and after cooling and solidification, the shaped product is obtained.

[0003] The Chinese patent with publication number CN221067111U discloses an intelligent temperature control device for injection mold, which comprises a workbench, a lower mold fixedly installed on the top surface of the workbench, a mold cavity formed in the lower mold, an upper mold arranged on the top surface of the lower mold, a punch fixedly installed on the bottom surface of the upper mold, and a glue injection hole formed in the upper mold.

[0004] In the above scheme, the heat in the heat dissipation water pipe is blown away by the heat dissipation mechanism, the cooling liquid in the heat dissipation water pipe is cooled, and the cooled cooling liquid is again introduced into the cooling water channel to absorb heat and cool the lower mold. However, it has the following disadvantages: this injection mold can only cool the two sides of the lower mold during use, which leads to uneven heat dissipation of the product in the cavity and easy deformation, thereby affecting the injection quality of the product and reducing the use effect of the injection mold. UTILITY MODEL CONTENTS

[0005] The utility model aims at providing a temperature control type injection mold to solve the problem that the injection mold can only cool the two sides of the lower mold during use, which leads to uneven heat dissipation of the product in the cavity and easy deformation, thereby affecting the injection quality of the product.

[0006] In order to achieve the above-mentioned utility model purposes, the utility model discloses the following technical scheme: a temperature control type injection mold, including fixed mold, the fixed mold is fixed on the top surface of the bearing plate, the top surface of the bearing plate is fixed with the PLC controller, the top of fixed mold is provided with movable mold, the top surface of fixed mold is opened with containing groove, the inner wall of containing groove is fixed with metal frame, the left and right sides of fixed mold are all opened with two fixed holes, the fixed hole is linked with containing groove, the inner wall of fixed hole is fixed with metal column, the one end of metal column is in contact with the outer wall of metal frame, the front side of fixed mold is provided with temperature display, the inductive end of temperature display extends to containing groove, the inner wall of containing groove is fixed with fixed plate, the top surface of bearing plate is fixed with water storage tank, the in of water storage tank is provided with water pump, the rear side of fixed mold is opened with two through holes, the inner wall of right side through hole is fixed with check valve, the front side of water storage tank is fixed with two connecting hoses, the connecting hose extends to through hole, the right side of water storage tank is opened with mounting hole, the inner wall of mounting hole is fixed with cooling module, temperature display, water pump, cooling module all are electrically connected with PLC controller, and different plastic materials have different requirements to the temperature of mold body in the injection molding process, and the existence of cooling module makes the temperature regulation of mold body more flexible, and the refrigeration power of cooling module can be adjusted, so that the temperature of mold body can be accurately controlled according to different injection materials and product requirements.

[0007] Preferably, the top surface of the bearing plate is fixed with a mounting bracket, the top surface of the mounting bracket is fixed with a driving member, the driving member is electrically connected with the PLC controller, one end of the telescopic rod of the driving member is fixed with the top surface of the movable mold, two limiting holes are opened on the top surface of the mounting bracket, two limiting columns are fixed on the top surface of the movable mold, and the limiting columns are slidably connected with the limiting holes. The sliding connection of the limiting columns and the limiting holes can enhance the stability of the movable mold during movement. When the movable mold is subjected to external force (such as pressure during injection molding, impact force during mold opening and closing, etc.), the cooperation of the limiting columns and the limiting holes can limit the shaking range of the movable mold, so that the movable mold can be more stably operated for mold opening and closing, and the damage of the mold body and the quality problem of the injection molded product caused by the instability of the movable mold are reduced.

[0008] Preferably, the left and right sides of the fixed mold are both fixed with two sliding columns, a plurality of threaded grooves are opened on the sliding columns, the left and right sides of the movable mold are both fixed with two sliding frames, and the sliding frames are slidably connected with the sliding columns. The movable mold may deviate or shake during mold opening and closing, resulting in uneven friction between the movable mold and the fixed mold. The sliding connection of the sliding frames and the sliding columns makes the movement of the movable mold more stable, reduces the wear of the direct contact parts of the movable mold and the fixed mold, and reduces the maintenance cost of the mold body.

[0009] Preferably, the sliding frame is provided with a positioning hole corresponding to the threaded groove, the inner wall of the positioning hole is slidably provided with a fixing bolt, the fixing bolt penetrates the positioning hole and is threadedly connected with the threaded groove, and the limiting and fixing of the fixing bolt on the sliding frame can limit the dynamic mold when it is placed, effectively preventing the dynamic mold from sliding down when it is placed.

[0010] Preferably, the top surface of the fixed mold is fixed with a rubber ring, which can play a buffering role, reduce the damage of the impact force to the fixed mold, absorb part of the energy, reduce the wear of the surface of the fixed mold, and prolong the service life of the mold body.

[0011] Preferably, the inner wall of the fixed mold cavity is coated with a release agent coating, which can facilitate the demolding work of the product after the mold is opened, thereby saving a lot of labor and time cost.

[0012] Compared with the prior art, the utility model has the following beneficial effects:

[0013] I. Through the cooperation of the metal frame and the metal column, the heat generated by the product in the fixed mold cavity can be uniformly absorbed, so that the heat is rapidly conducted to the circulating cooling water in the containing groove under the action of the cooling water in the water storage tank, thereby uniformly reducing the temperature of the fixed mold, preventing the product in the fixed mold from deforming due to overheating and affecting the quality of the injection molded product. At the same time, the circulating cooling water in the water storage tank can make the temperature of the fixed mold more uniform, and the circulating cooling water can continuously take away heat, so as to ensure that the temperature of each part of the fixed mold remains relatively consistent, improve the quality stability of the injection molded product. Through the temperature display, the temperature in the fixed mold cavity can be conveniently controlled by the staff, so that the staff can control the cooling assembly through the PLC controller, thereby reducing the temperature of the cooling water. Through the cooling module, the cooling water in the water storage tank can be refrigerated, and then the low-temperature cooling water is circulated to the fixed mold, thereby reducing the temperature of the fixed mold, accelerating the cooling speed of the plastic product, improving the production efficiency, and ensuring the dimensional accuracy and appearance quality of the product.

[0014] II. Through the cooperation of the limiting column and the limiting hole, additional guiding and limiting functions are provided for the movement of the dynamic mold. During the opening and closing of the dynamic mold, the limiting column slides in the limiting hole, which can more accurately control the movement trajectory of the dynamic mold, ensure that the dynamic mold and the fixed mold can be accurately aligned when the mold is closed, and improve the forming precision of the injection molded product. Through the cooperation of the sliding frame and the sliding column, accurate guidance is provided for the movement of the dynamic mold, guiding the sliding frame and the dynamic mold to move along the predetermined direction, ensuring that the dynamic mold can accurately close or open the mold with the fixed mold, thereby ensuring the dimensional accuracy and quality stability of the injection molded product.

[0015] 3. The fixing bolts can firmly fix the sliding frame and the movable mold together to prevent the movable mold from shifting during the injection process. This effectively prevents the movable mold from moving under pressure, which can cause defects such as flash and deformation in the injection molded product. The rubber ring can fill the tiny gap between the fixed mold and the movable mold, so that the fixed mold and the movable mold need to be tightly closed to prevent the plastic melt from leaking, thereby ensuring that the plastic melt can only flow and form inside the mold body cavity, avoiding melt overflow and causing product defects and material waste. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a three-dimensional schematic diagram of the utility model;

[0017] Figure 2 It is an explosion diagram of the utility model;

[0018] Figure 3 for Figure 2 Explosion diagram of the metal frame and metal column;

[0019] Figure 4 for Figure 2 Enlarged schematic diagram of point A in the middle.

[0020] In the figure: 1. Fixed mold; 2. Load-bearing plate; 3. Moving mold; 4. Receiving groove; 5. Metal frame; 6. Fixing hole; 7. Metal column; 8. Temperature display; 9. Fixing plate; 10. Water tank; 11. Through hole; 12. One-way valve; 13. Connecting hose; 14. Mounting hole; 15. Cooling module; 16. Mounting frame; 17. Driving part; 18. Limiting hole; 19. Limiting column; 20. Sliding column; 21. Threaded groove; 22. Sliding frame; 23. Positioning hole; 24. Fixing bolt; 25. Rubber ring. DETAILED DESCRIPTION

[0021] The preferred embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

[0022] like Figures 1-4As shown, a temperature-controlled injection mold includes a fixed mold 1, which is fixed to the top surface of a load-bearing plate 2, a PLC controller is fixed to the top surface of the load-bearing plate 2, a movable mold 3 is arranged above the fixed mold 1, a receiving groove 4 is provided on the top surface of the fixed mold 1, a metal frame 5 is fixed to the inner wall of the receiving groove 4, two fixing holes 6 are provided on the left and right sides of the fixed mold 1, the fixing holes 6 are connected to the receiving groove 4, a metal column 7 is fixed to the inner wall of the fixing hole 6, one end of the metal column 7 is in contact with the outer wall of the metal frame 5, a temperature display 8 is provided on the front side of the fixed mold 1, and the temperature display 8 The sensing end extends into the accommodating groove 4, a fixing plate 9 is fixed to the inner wall of the accommodating groove 4, a water tank 10 is fixed to the top surface of the load-bearing plate 2, a water pump is arranged in the water tank 10, two through holes 11 are provided on the rear side of the fixed mold 1, a one-way valve 12 is fixed to the inner wall of the right through hole 11, two connecting hoses 13 are fixed on the front side of the water tank 10, the connecting hoses 13 extend into the through hole 11, a mounting hole 14 is provided on the right side of the water tank 10, a cooling module 15 is fixed to the inner wall of the mounting hole 14, the temperature display 8, water pump and cooling module 15 are all electrically connected to the PLC controller.

[0023] During use, the metal frame 5 and the metal column 7 cooperate to uniformly absorb the heat generated by the product in the cavity of the fixed mold 1. As a result, the heat is quickly transferred to the circulating cooling water in the holding tank 4 under the action of the cooling water in the water storage tank 10, thereby uniformly reducing the temperature of the fixed mold 1 and preventing the product in the fixed mold 1 from being deformed due to overheating and affecting the quality of the injection molded product. At the same time, the cooling water circulating in the water storage tank 10 can make the temperature of the fixed mold 1 more uniform. The circulating cooling water continuously removes heat, which can ensure that the temperature of each part of the fixed mold 1 remains relatively consistent, thereby improving the quality stability of the injection molded product. The temperature display 8 can facilitate the staff to control the temperature in the cavity of the fixed mold 1, so that the staff can control the cooling component through the PLC controller to reduce the temperature of the cooling water. The cooling water in the water storage tank 10 can be refrigerated by the cooling module 15, and then the low-temperature cooling water is circulated to the fixed mold 1 to reduce the temperature of the fixed mold 1, thereby accelerating the cooling speed of the plastic product, improving production efficiency, and ensuring the dimensional accuracy and appearance quality of the product. At the same time, different plastic materials have different requirements for the temperature of the mold body during the injection molding process. The existence of the cooling module 15 makes the temperature adjustment of the mold body more flexible. By adjusting the cooling power of the cooling module 15, the temperature of the mold body can be accurately controlled according to different injection molding materials and product requirements.

[0024] like Figure 1 、 Figure 2 and Figure 4As shown, a mounting bracket 16 is fixed to the top surface of the load-bearing plate 2, and a driving member 17 is fixed to the top surface of the mounting bracket 16. The driving member 17 is electrically connected to the PLC controller, and one end of the telescopic rod of the driving member 17 is fixed to the top surface of the movable mold 3. Two limiting holes 18 are provided on the top surface of the mounting bracket 16, and two limiting columns 19 are fixed to the top surface of the movable mold 3. The limiting columns 19 are slidably connected to the limiting holes 18. Two sliding columns 20 are fixed on the left and right sides of the fixed mold 1, and a number of threaded grooves 21 are provided on the sliding columns 20. Two sliding frames 22 are fixed on the left and right sides of the movable mold 3, and the sliding frames 22 are slidably connected to the sliding columns 20.

[0025] During use, the cooperation between the limiting column 19 and the limiting hole 18 can provide additional guiding and limiting functions for the movement of the movable mold 3. During the opening and closing process of the movable mold 3, the limiting column 19 slides in the limiting hole 18, which can more accurately control the movement trajectory of the movable mold 3, ensure that the movable mold 3 and the fixed mold 1 can be accurately aligned when closing the mold, and improve the molding accuracy of the injection molded product. At the same time, the sliding connection between the limiting column 19 and the limiting hole 18 can enhance the stability of the movable mold 3 during movement. When the movable mold 3 is subjected to external force (such as pressure during the injection molding process, impact force during opening and closing the mold, etc.), the cooperation between the limiting column 19 and the limiting hole 18 can limit the shaking range of the movable mold 3, so that the movable mold 3 can perform opening and closing operations more stably, reducing damage to the mold body and injection product quality problems caused by the instability of the movable mold 3. Through the cooperation of the sliding frame 22 and the sliding column 20, accurate guidance is provided for the movement of the movable mold 3, guiding the sliding frame 22 and the movable mold 3 to move along the predetermined direction, ensuring that the movable mold 3 can accurately close or open the mold with the fixed mold 1, thereby ensuring the dimensional accuracy and quality stability of the injection molded product. At the same time, the movable mold 3 may deviate or shake during the opening and closing process, resulting in uneven friction between the movable mold 3 and the fixed mold 1, and the sliding connection between the sliding frame 22 and the sliding column 20 makes the movement of the movable mold 3 more stable, reduces the wear of the direct contact parts of the movable mold 3 and the fixed mold 1, and reduces the maintenance cost of the mold body.

[0026] like Figure 1 、 Figure 2 and Figure 4 As shown, a positioning hole 23 is provided on the sliding frame 22, and the positioning hole 23 corresponds to the thread groove 21. A fixing bolt 24 is slidingly provided on the inner wall of the positioning hole 23. The fixing bolt 24 passes through the positioning hole 23 and is threadedly connected to the thread groove 21. A rubber ring 25 is fixed on the top surface of the fixed mold 1, and the inner wall of the cavity of the fixed mold 1 is coated with a release agent coating.

[0027] During use, the fixing bolts 24 securely fasten the sliding frame 22 and the movable mold 3 together, preventing the movable mold 3 from shifting during the injection molding process. This effectively prevents the movable mold 3 from moving under pressure, which could result in defects such as flash and deformation in the molded product. Furthermore, the fixing bolts 24 position the sliding frame 22, limiting the movable mold 3 when it is in a resting position, effectively preventing the movable mold 3 from sliding down when in a resting position. The rubber ring 25 fills the tiny gap between the fixed mold 1 and the movable mold 3, ensuring that the fixed mold 1 and the movable mold 3 are tightly closed to prevent plastic melt leakage. This ensures that the plastic melt can only flow and form within the mold cavity, avoiding product defects and material waste caused by melt overflow. Furthermore, the rubber ring 25 acts as a buffer, alleviating damage to the fixed mold 1 caused by the impact force. The rubber ring 25 absorbs some of the energy, reducing wear on the surface of the fixed mold 1 and extending the service life of the mold body. The release agent coating facilitates easy demolding of the product after mold opening, saving significant labor and time.

[0028] The above is only a preferred specific implementation method of the present invention, but the protection scope of the present invention is not limited to this. Any technician familiar with the technical field within the technical scope disclosed by the present invention can make equivalent replacements or changes based on the technical solution and utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A temperature-controlled injection mold, comprising a fixed mold (1), wherein the fixed mold (1) is fixed on the top surface of a bearing plate (2), characterized in that: A PLC controller is fixed on the top surface of the load-bearing plate (2); a movable mold (3) is provided above the fixed mold (1); a receiving groove (4) is provided on the top surface of the fixed mold (1); a metal frame (5) is fixed to the inner wall of the receiving groove (4); two fixing holes (6) are provided on the left and right sides of the fixed mold (1); the fixing holes (6) are connected to the receiving groove (4); a metal column (7) is fixed to the inner wall of the fixing hole (6); one end of the metal column (7) is in contact with the outer wall of the metal frame (5); a temperature display (8) is provided on the front side of the fixed mold (1); the sensing end of the temperature display (8) extends into the receiving groove (4); the receiving groove ( 4) is fixed with a fixing plate (9), the top surface of the load-bearing plate (2) is fixed with a water tank (10), a water pump is arranged in the water tank (10), two through holes (11) are provided on the rear side of the fixed mold (1), a one-way valve (12) is fixed on the inner wall of the through hole (11) on the right side, two connecting hoses (13) are fixed on the front side of the water tank (10), the connecting hoses (13) extend into the through hole (11), a mounting hole (14) is provided on the right side of the water tank (10), a cooling module (15) is fixed on the inner wall of the mounting hole (14), and the temperature display (8), the water pump and the cooling module (15) are all electrically connected to the PLC controller.

2. The temperature-controlled injection mold according to claim 1, characterized in that: A mounting frame (16) is fixed on the top surface of the load-bearing plate (2), a driving member (17) is fixed on the top surface of the mounting frame (16), the driving member (17) is electrically connected to the PLC controller, one end of the telescopic rod of the driving member (17) is fixed to the top surface of the movable mold (3), two limiting holes (18) are provided on the top surface of the mounting frame (16), two limiting columns (19) are fixed on the top surface of the movable mold (3), and the limiting columns (19) are slidably connected to the limiting holes (18).

3. The temperature-controlled injection mold according to claim 1, characterized in that: Two sliding columns (20) are fixed on both the left and right sides of the fixed mold (1), and a plurality of thread grooves (21) are provided on the sliding columns (20). Two sliding frames (22) are fixed on both the left and right sides of the movable mold (3), and the sliding frames (22) are slidably connected to the sliding columns (20).

4. The temperature-controlled injection mold according to claim 3, characterized in that: A positioning hole (23) is provided on the sliding frame (22), and the positioning hole (23) corresponds to the thread groove (21). A fixing bolt (24) is slidably provided on the inner wall of the positioning hole (23), and the fixing bolt (24) passes through the positioning hole (23) and is threadedly connected to the thread groove (21).

5. The temperature-controlled injection mold according to claim 3, characterized in that: A rubber ring (25) is fixed to the top surface of the fixed mold (1).

6. The temperature-controlled injection mold according to claim 5, characterized in that: The inner wall of the cavity of the fixed mold (1) is coated with a release agent coating.

Images