A high-efficiency heat dissipation blow molding mold for processing plastic products

Abstract

The present invention belongs to the technical field of blow molding molds, and in particular, relates to an efficient heat dissipation blow molding mold for processing plastic products, comprising a box body, a box door is provided on the front side of the box body, a base is installed on the inner wall of the bottom of the box body, a fixed mold and a movable mold are provided on the top of the base, and injection molding grooves are provided on the opposite sides of the fixed mold and the movable mold, and heat dissipation channels are provided inside the fixed mold and the fixed mold, and both ends of the heat dissipation channels are connected to the bottom of the fixed mold or the movable mold. The present invention is provided with a deflection component, and in the process of closing the movable mold and the fixed mold, as the raw material is pressed, the movable mold and the fixed mold can be deflected at a certain angle under the action of their respective deflection components, so that the fixed mold and the movable mold can better adapt to the uneven pressure between the two, and then can also protect the fixed mold and the movable mold, and avoid bending and deformation at the connection between the hydraulic push rod and the movable mold under the existing connection method.

Description

Technical Field

[0001] The invention belongs to the technical field of blow molding molds, and in particular relates to a high-efficiency heat dissipation blow molding mold for processing plastic products. Background Art

[0002] Blow molds are key tools used to form hollow plastic products in the blow molding process. They are generally composed of a movable mold, a fixed mold, a blowing assembly, a cooling system, and an exhaust system. When the existing blow molds are used to blow plastic products, the movable mold and the fixed mold will clamp the molten raw material between them, and then the blowing assembly is inserted into the air injection holes of the movable mold and the fixed mold, thereby squeezing the raw material into the injection grooves of the movable mold and the fixed mold by air pressure.

[0003] However, when the movable mold and the fixed mold clamp the raw material, the raw material cannot be evenly located between the movable mold and the fixed mold. Therefore, when the hydraulic push rod drives the movable mold and the fixed mold to close the mold, the pressure on the contact surface of the movable mold and the fixed mold is uneven. Over time, it will cause bending and deformation at the connection between the movable mold and the hydraulic push rod, thereby affecting the closing effect of the movable mold and the fixed mold, and further affecting the product quality.

[0004] Therefore, it is necessary to invent a high-efficiency heat dissipation blow mold that is convenient for processing plastic products to solve the above problems. Summary of the invention

[0005] In view of the above problems, the present invention provides a high-efficiency heat dissipation blow molding mold for processing plastic products to solve the problems raised in the above background technology.

[0006] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a high-efficiency heat dissipation blow molding mold for processing plastic products, comprising a box body, a box door is arranged on the front side of the box body, a base is installed on the inner wall of the bottom of the box body, a fixed mold and a movable mold are arranged on the top of the base, and injection grooves are arranged on the opposite sides of the fixed mold and the movable mold, heat dissipation channels are arranged inside the fixed mold and the fixed mold, and both ends of the heat dissipation channels are connected to the bottom of the fixed mold or the movable mold, a plurality of semi-cylindrical air injection holes are arranged on the top of the fixed mold and the movable mold, and the air injection holes of the movable mold and the fixed mold can be spliced ​​together, a vertical mounting plate is arranged on the side where the fixed mold and the movable mold are separated, and the two mounting plates are respectively connected to the fixed mold and the movable mold. A deflection assembly, a mounting plate connected to the fixed mold is fixedly connected to the base, a plurality of limit rods are vertically slidably inserted through the mounting plate connected to the movable mold, the limit rods are vertically fixedly connected to the mounting plate connected to the fixed mold, the free end of the limit rod near the bottom is fixedly connected to the base through a fixed block, a plurality of hydraulic push rods are vertically fixedly connected to the side of the mounting plate connected to the movable mold away from the movable mold, and the ends of the plurality of hydraulic push rods away from the mounting plate are fixedly connected to the same fixed plate, the fixed plate is fixedly connected to the base, an air injection assembly is provided on the top of the fixed mold, and positioning rods are vertically fixedly connected to the four corner positions of the fixed mold facing the movable mold, and a positioning hole is penetrated through the position of the movable mold facing the positioning rod.

[0007] Furthermore, the deflection assembly includes a connecting column, which is fixedly connected to the movable mold or the fixed mold at the center of one side of the adjacent mounting plate, a connecting ball is rotatably installed on the connecting column, a connecting block is fixedly connected between the connecting ball and the movable mold or the fixed mold, a concentric annular protrusion is arranged on the periphery of the connecting column, the annular protrusion is fixedly connected to the movable mold or the fixed mold, the outer side surface of the annular protrusion is spherical in design, the outer side of the annular protrusion is rotatably connected to a fixing ring, the fixing ring is fixedly connected to the adjacent mounting plate, a plurality of mounting holes are penetrated through one side of the annular protrusion close to the adjacent mounting plate, and the plurality of mounting holes are distributed in a ring shape, a support column is slidably installed in the mounting hole, a support spring is fixedly connected between the support column and the inner wall of the mounting hole, a ball is installed on the end of the support column away from the support spring, and the ball can always fit tightly with the mounting plate under the action of the support spring.

[0008] Furthermore, the gas injection assembly includes a horizontally arranged gas injection pipe, the bottom end of the gas injection pipe is vertically connected to a plurality of insert tubes, and the plurality of insert tubes are opposite to the plurality of gas injection holes one by one, the top of the gas injection pipe is connected to a first electric push rod, the first electric push rod is connected to a mounting bracket on the top of the fixed mold, the side of the gas injection pipe away from the movable mold is connected to an air intake pipe, and the free end of the air intake pipe is connected to a compressor.

[0009] Furthermore, a concentric pressure ring is provided on the inner side of the annular protrusion, and a plurality of pressure rods are vertically fixedly connected to a side of the pressure ring close to an adjacent mounting plate. The pressure rods vertically slide through and are inserted into the adjacent mounting plate, and a pressure plate is fixedly connected to one end of the plurality of pressure rods away from the pressure ring, and a second electric push rod is fixedly connected between the pressure plate and the fixed plate. A pressure sensor is provided at a position of the positioning hole away from one end of the fixed mold, and the pressure sensor is electrically connected to the two second electric push rods, and a spring is fixedly connected between the two pressure sensors located at the same height, and a mounting block is fixedly connected between the spring and the side of the movable mold away from the fixed mold.

[0010] Furthermore, the lower half of the opposite side of the movable mold and the fixed mold is provided with a smoothing component, and the smoothing component includes two L-shaped movable bars, and the two movable bars are horizontally symmetrically slidably inserted on both sides of the fixed mold or the movable mold, and the movable bar is flush with the side of the fixed mold or the movable mold close to the injection groove, and the two ends of the two movable bars are fixedly connected with an insertion rod, and a sleeve is slidably sleeved on the insertion rod, and the sleeve is vertically fixedly connected to the fixed mold or the movable mold, and the diameter of the end of the insertion rod located inside the sleeve is larger than its overall diameter, and the insertion rod is fixedly connected to the fixed mold or the movable mold. A return spring is sleeved on the rod, and both ends of the return spring are fixedly connected to the end of the insertion rod with a larger diameter and the inner wall of the sleeve respectively; the top and bottom of the movable bar on the movable mold are fixedly connected with an inclined surface pressure block and an inclined surface push block respectively; the top and bottom of the movable bar on the movable mold are fixedly connected with an inclined surface push block and an inclined surface pressure block respectively; the inclined surface push block and the inclined surface pressure block on the movable mold can be kept opposite to the inclined surface pressure block and the inclined surface push block on the fixed mold respectively, and the inclined surface pressure block located in the opposite position is kept opposite to the inclined surface of the inclined surface push block, and the two can contact each other.

[0011] Furthermore, an arcuate groove is provided at a position of the fixing plate directly facing the ball, the ball is located in the arcuate groove, and the arcuate groove is located on the diameter of the annular protrusion.

[0012] Furthermore, the movable bar is made of metal, and vertical anti-slip grooves are evenly arranged on the side of the movable bar that contacts the raw material.

[0013] Furthermore, the length of the positioning rod is greater than the thickness of the movable mold, and the positioning rod can contact the opposite pressure sensor.

[0014] Technical effects and advantages of the present invention:

[0015] 1. The present invention is provided with a deflection assembly. During the process of clamping the movable mold and the fixed mold, as the raw material is pressed, the movable mold and the fixed mold can be deflected at a certain angle under the action of their respective deflection assemblies, so that the fixed mold and the movable mold can better adapt to the uneven pressure between the two, and further can protect the fixed mold and the movable mold, avoiding bending and deformation at the connection between the hydraulic push rod and the movable mold in the existing connection mode;

[0016] 2. The present invention is provided with a pressure ring. Before mold closing, the second electric push rod is in a retracted state, so that the pressure ring can be pressed together with the fixed mold or the movable mold under the pulling force of the second electric push rod on the pressure rod through the pressure plate. As the pressure ring is pressed together with the fixed mold or the movable mold, the pressure ring can cooperate with a plurality of support columns and support springs to keep the movable mold and the fixed mold in a vertical state parallel to each other, thereby ensuring that the positioning rod on the fixed mold can be smoothly inserted into the positioning hole on the movable mold, thereby realizing accurate mold closing of the movable mold and the fixed mold;

[0017] 3. The present invention is provided with a smoothing component. In the process of the movable mold and the fixed mold gradually approaching each other, when the inclined surface push block contacts the opposite inclined surface pressure block, the inclined surface push block can squeeze the inclined surface of the inclined surface pressure block through its inclined surface, so that the two movable bars on the movable mold and the fixed mold move away from each other. As the movable bars move, the positions where the two sides of the bottom of the raw material contact the movable bars can be gradually stretched and smoothed under the action of the friction force of the movable bars, thereby ensuring that the raw material can contact the movable mold and the fixed mold more evenly, thereby ensuring product quality, and at the same time, it can also reduce the problem of uneven pressure on the contact surface between the fixed mold and the movable mold caused by uneven raw materials. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0019] Figure 2 It is a three-dimensional schematic diagram of all structures inside the box body of the present invention;

[0020] Figure 3 It is a three-dimensional schematic diagram of the movable mold, the movable bar, the pressure sensor, and part of the deflection assembly in the present invention;

[0021] Figure 4 It is a three-dimensional schematic diagram of the movable mold, the movable bar, the inclined surface pressing block and the inclined surface pushing block in the present invention;

[0022] Figure 5 It is a three-dimensional schematic diagram of the fixed mold, the mounting plate, the limiting rod, the positioning rod and the fixing ring in the present invention;

[0023] Figure 6 The present invention Figure 5 A three-dimensional cross-sectional view of

[0024] Figure 7 It is a three-dimensional schematic diagram of the pressure ring, the pressure rod, the pressure plate and the second electric push rod in the present invention.

[0025] In the figure: 1, box body; 2, base; 3, fixed mold; 4, movable mold; 5, air injection hole; 6, mounting plate; 7, deflection assembly; 71, connecting column; 72, connecting ball; 73, connecting block; 74, annular protrusion; 75, fixing ring; 76, supporting column; 77, supporting spring; 78, ball; 8, limit rod; 9, hydraulic push rod; 10, fixing plate; 11, air injection assembly; 111, air injection pipe; 112, cannula; 113. First electric push rod; 114. Mounting frame; 115. Intake pipe; 116. Compressor; 12. Positioning rod; 13. Positioning hole; 14. Pressing ring; 15. Pressing rod; 16. Pressing plate; 17. Second electric push rod; 18. Pressure sensor; 19. Shrapnel; 20. Movable bar; 21. Inserting rod; 22. Sleeve; 23. Return spring; 24. Inclined pressure block; 25. Inclined push block; 26. Arc groove. DETAILED DESCRIPTION

[0026] In order to make the purpose, technical solution and advantages of the embodiments of the present invention more clear, the technical solution of the present invention will be clearly and completely described below in conjunction with the embodiments.

[0027] The present invention provides Figures 1 to 7 A high-efficiency heat dissipation blow molding mold for processing plastic products shown in the figure comprises a box body 1, a box door is arranged on the front side of the box body 1, a base 2 is installed on the inner wall of the bottom of the box body 1, a fixed mold 3 and a movable mold 4 are arranged on the top of the base 2, and injection grooves are provided on the opposite sides of the fixed mold 3 and the movable mold 4, heat dissipation channels are arranged inside the fixed mold 3 and the fixed mold 3, and both ends of the heat dissipation channels are connected to the bottom of the fixed mold 3 or the movable mold 4, a plurality of semi-cylindrical air injection holes 5 are arranged on the top of the fixed mold 3 and the movable mold 4, and the air injection holes 5 of the movable mold 4 and the fixed mold 3 can be spliced ​​together, a vertical mounting plate 6 is arranged on the side where the fixed mold 3 and the movable mold 4 are separated, and deflection assemblies 7 are respectively connected between the two mounting plates 6 and the fixed mold 3 and the movable mold 4, the mounting plate 6 connected to the fixed mold 3 is fixedly connected to the base 2, and the mounting plate 6 connected to the movable mold 4 is fixedly connected to the base 2. A plurality of limit rods 8 are inserted and penetrated vertically and slideably on the mounting plate 6, the limit rods 8 are vertically fixedly connected to the mounting plate 6 connected to the fixed mold 3, the free end of the limit rod 8 near the bottom is fixedly connected to the base 2 through a fixed block, the mounting plate 6 connected to the movable mold 4 is vertically fixedly connected to a plurality of hydraulic push rods 9 on the side away from the movable mold 4, and the ends of the plurality of hydraulic push rods 9 away from the mounting plate 6 are fixedly connected to the same fixed plate 10, the fixed plate 10 is fixedly connected to the base 2, an air injection assembly 11 is arranged on the top of the fixed mold 3, the four corner positions of the fixed mold 3 facing the movable mold 4 are vertically fixedly connected to positioning rods 12, a positioning hole 13 is opened through the position of the movable mold 4 facing the positioning rod 12, the length of the positioning rod 12 is greater than the thickness of the movable mold 4, and the positioning rod 12 can contact the facing pressure sensor 18;

[0028] The gas injection assembly 11 includes a horizontally arranged gas injection pipe 111, a plurality of inserting pipes 112 are vertically connected to the bottom end of the gas injection pipe 111, and the plurality of inserting pipes 112 are opposite to the plurality of gas injection holes 5 one by one, a first electric push rod 113 is connected to the top of the gas injection pipe 111, and a mounting frame 114 is connected to the first electric push rod 113 and the top of the fixed mold 3, a side of the gas injection pipe 111 away from the movable mold 4 is connected to an air inlet pipe 115, and a free end of the air inlet pipe 115 is connected to a compressor 116;

[0029] Before blow molding, the external water circuit is connected to the heat dissipation channel ports at the bottom of the fixed mold 3 and the movable mold 4 to form a circulating water circuit respectively. During blow molding, when the raw material is suspended and placed in front of the injection groove of the fixed mold 3, as the hydraulic push rod 9 is extended, the movable mold 4 can gradually approach the fixed mold 3 under the push of the hydraulic push rod 9, and as the movable mold 4 and the fixed mold 3 gradually approach, the positioning rod 12 on the fixed mold 3 can be gradually inserted into the positioning hole 13 of the movable mold 4, and as the movable mold 4 and the fixed mold 3 are further approached, the raw material can gradually be pressed under the cooperation of the fixed mold 3 and the movable mold 4, and as the raw material is pressed, the movable mold 4 and the fixed mold 3 can be deflected at a certain angle under the action of their respective deflection assemblies 7, so that the fixed mold 3 and the movable mold 4 can better adapt to the uneven pressure between the two, and then can also protect the fixed mold 3 and the movable mold 4, and avoid bending and deformation at the connection between the hydraulic push rod 9 and the movable mold 4 under the existing connection method;

[0030] When the raw material is compressed, the first electric push rod 113 can gradually extend, thereby driving the insert tube 112 to gradually move downward and insert into the air injection hole 5 spliced ​​together by the movable mold 4 and the fixed mold 3, and then the compressor 116 can be started and air is injected into the injection groove through the air inlet pipe 115, so that the raw material can be attached to the inner wall of the injection groove on the fixed mold 3 and the movable mold 4 under the action of air pressure, and then cooling water is injected into the heat dissipation channel of the movable mold 4 and the fixed mold 3 through the external water channel, thereby accelerating the cooling and molding of the product. After the product is cooled and formed, as the hydraulic push rod 9 gradually shortens, the movable mold 4 and the fixed mold 3 can be gradually separated, and finally the molded product can be removed from the fixed mold 3 using a robotic arm.

[0031] like Figures 2 to 6As shown, the deflection assembly 7 includes a connecting column 71, and the connecting column 71 is fixedly connected to the center of the movable mold 4 or the fixed mold 3 near the adjacent mounting plate 6. A connecting ball 72 is rotatably mounted on the connecting column 71, and a connecting block 73 is fixedly connected between the connecting ball 72 and the movable mold 4 or the fixed mold 3. A concentric annular protrusion 74 is arranged on the periphery of the connecting column 71, and the annular protrusion 74 is fixedly connected to the movable mold 4 or the fixed mold 3. The outer side surface of the annular protrusion 74 is a spherical design. The outer side is rotatably connected to a fixing ring 75, and the fixing ring 75 is fixedly connected to the adjacent mounting plate 6. A plurality of mounting holes are formed through the side of the annular protrusion 74 close to the adjacent mounting plate 6, and the plurality of mounting holes are distributed in an annular shape. A support column 76 is slidably installed in the mounting hole, and a support spring 77 is fixedly connected between the support column 76 and the inner wall of the mounting hole. A ball 78 is installed at one end of the support column 76 away from the support spring 77, and the ball 78 can always fit tightly with the mounting plate 6 under the action of the support spring 77;

[0032] In the process of closing the movable mold 4 and the fixed mold 3, as the hydraulic push rod 9 pushes the movable mold 4 gradually to approach the fixed mold 3, the positioning rod 12 on the fixed mold 3 can be gradually inserted into the positioning hole 13 of the movable mold 4, and then the fixed mold 3 and the movable mold 4 can cooperate with each other to press the raw material. In the process of the fixed mold 3 cooperating with the movable mold 4 to press the raw material, due to the difference in thickness of the clamped parts of the raw material, the pressure on the contact surface of the movable mold 4 and the fixed mold 3 is uneven. At this time, the movable mold 4 and the fixed mold 3 can be deflected at a certain angle with their respective connecting balls 72 as the center, so that the fixed mold 3 and the movable mold 4 can be pressed together. The mold 4 can better adapt to the uneven pressure between the two, and can also protect the fixed mold 3 and the movable mold 4, avoiding bending and deformation at the connection between the hydraulic push rod 9 and the movable mold 4 under the existing connection mode. In the process of the movable mold 4 and the fixed mold 3 deflecting with their respective connecting balls 72 as circles, the annular protrusion 74 can rotate inside the fixing ring 75, and the support column 76 can always keep in contact with the mounting plate 6 under the action of the support spring 77 and further extend or further retract into the mounting hole with the deflection of the movable mold 4 and the fixed mold 3, thereby meeting the deflection requirements of the movable mold 4 and the fixed mold 3;

[0033] After blow molding is completed, as the movable mold 4 and the fixed mold 3 are gradually separated, the movable mold 4 and the fixed mold 3 can deflect with their respective connecting balls 72 as the center under the action of their respective supporting springs 77 and restore to the initial state, thereby preparing for the next mold closing.

[0034] like Figure 3 and Figure 7As shown, a concentric pressing ring 14 is arranged on the inner side of the annular protrusion 74, and a plurality of pressing rods 15 are vertically fixedly connected to the side of the pressing ring 14 close to the adjacent mounting plate 6, and the pressing rods 15 vertically slide through and are inserted on the adjacent mounting plate 6, and a pressing plate 16 is fixedly connected to the end of the plurality of pressing rods 15 away from the pressing ring 14, and a second electric push rod 17 is fixedly connected between the pressing plate 16 and the fixed plate 10, and a pressure sensor 18 is arranged at the position of the positioning hole 13 away from the end of the fixed mold 3, and the pressure sensor 18 is electrically connected to the two second electric push rods 17, and a spring 19 is fixedly connected between the two pressure sensors 18 at the same height, and a mounting block is fixedly connected between the spring 19 and the side of the movable mold 4 away from the fixed mold 3;

[0035] By providing the pressing ring 14, before mold closing, the second electric push rod 17 is in a retracted state, so that the pressing ring 14 can be pressed together with the fixed mold 3 or the movable mold 4 under the pulling force of the second electric push rod 17 on the pressing rod 15 through the pressing plate 16, and as the pressing ring 14 is pressed together with the fixed mold 3 or the movable mold 4, the pressing ring 14 can cooperate with the multiple support columns 76 and the support springs 77 to keep the movable mold 4 and the fixed mold 3 in a vertical state parallel to each other, thereby ensuring that the positioning rod 12 on the fixed mold 3 can be smoothly inserted into the positioning hole 13 on the movable mold 4, so as to achieve accurate mold closing of the movable mold 4 and the fixed mold 3;

[0036] During the process of closing the movable mold 4 and the fixed mold 3, as the positioning rod 12 is gradually inserted into the positioning hole 13, since the length of the positioning rod 12 is greater than the thickness of the movable mold 4, before the movable mold 4 cooperates with the fixed mold 3 to clamp the raw material, the positioning rod 12 can contact the opposite pressure sensor 18, and then the pressure sensor 18 can control the two second electric push rods 17 to extend rapidly, thereby driving the pressure ring 14 to separate from the fixed mold 3 and the movable mold 4 through the pressure plate 16 and the pressure rod 15, thereby releasing the restriction effect of the pressure ring 14 on the fixed mold 3 or the movable mold 4, and then when the fixed mold 3 and the movable mold 4 are pressed together, the deflection assembly 7 can drive the movable mold 4 and the fixed mold 3 to deflect adaptively according to the actual situation of the raw material, thereby ensuring the protection of the deflection assembly 7 on the movable mold 4.

[0037] like Figures 2 to 6As shown, the lower half of the opposite side of the movable mold 4 and the fixed mold 3 are both provided with a smoothing component, and the smoothing component includes two L-shaped movable bars 20, and the two movable bars 20 are horizontally symmetrically slidably inserted on both sides of the fixed mold 3 or the movable mold 4, and the movable bars 20 are flush with the side of the fixed mold 3 or the movable mold 4 close to the injection groove, and the separated ends of the two movable bars 20 are fixedly connected with an insertion rod 21, and a sleeve 22 is slidably sleeved on the insertion rod 21, and the sleeve 22 is vertically fixedly connected to the fixed mold 3 or the movable mold 4, and the diameter of the end of the insertion rod 21 located inside the sleeve 22 is larger than its whole body diameter, and a reset spring 23 is sleeved on the insertion rod 21, and the two ends of the reset spring 23 are respectively The movable bar 20 is fixedly connected to the end with a larger diameter of the insertion rod 21 and the inner wall of the sleeve 22. The top and bottom of the movable bar 20 on the movable mold 4 are respectively fixedly connected with an inclined surface pressing block 24 and an inclined surface pushing block 25. The top and bottom of the movable bar 20 on the movable mold 4 are respectively fixedly connected with an inclined surface pushing block 25 and an inclined surface pressing block 24. The inclined surface pushing block 25 and the inclined surface pressing block 24 on the movable mold 4 can respectively face the inclined surface pressing block 24 and the inclined surface pushing block 25 on the fixed mold 3, and the inclined surface pressing block 24 located at the facing position and the inclined surface of the inclined surface pushing block 25 are kept facing each other, and the two can contact each other. The movable bar 20 is made of metal, and the side of the movable bar 20 in contact with the raw material is evenly provided with vertical anti-slip grooves;

[0038] During the blow molding process, when the raw material is suspended and placed between the fixed mold 3 and the movable mold 4, due to the lack of fixation of the bottom edge of the raw material, as the movable mold 4 and the fixed mold 3 clamp the raw material, the bottom edge of the raw material is prone to stacking, resulting in the lower half of the raw material not being able to evenly contact the movable mold 4 and the fixed mold 3, thereby causing uneven thickness distribution at the bottom of the finished product. At this time, a smoothing component is provided. When the movable mold 4 and the fixed mold 3 clamp the raw material, as the movable mold 4 and the fixed mold 3 gradually approach each other, the inclined surface pressing block 24 and the inclined surface pushing block 25 on the fixed mold 3 can gradually approach the inclined surface pushing block 25 and the inclined surface pressing block 24 on the movable mold 4. When the inclined surface pushing block 25 is in contact with the positive When the inclined surface pressing block 24 contacts the inclined surface, the inclined surface pushing block 25 can press the inclined surface of the inclined surface pressing block 24 through its inclined surface, so that the two movable bars 20 on the movable mold 4 and the fixed mold 3 move away from each other, and as the movable bars 20 move, the positions where the two sides of the bottom of the raw material contact with the movable bars 20 can be gradually stretched and smoothed under the action of the friction force of the movable bars 20, so as to ensure that the raw material can contact the movable mold 4 and the fixed mold 3 more evenly, thereby ensuring the product quality. At the same time, as the raw material is smoothed, the fixed mold 3 and the movable mold 4 can be better fitted together, thereby reducing the problem of uneven pressure on the contact surface of the fixed mold 3 and the movable mold 4 caused by uneven raw materials;

[0039] During the movement of the above-mentioned movable bar 20, the reset spring 23 can be gradually compressed by the insertion rod 21. When the movable mold 4 and the fixed mold 3 are gradually separated, the inclined surface push block 25 and the inclined surface pressure block 24 are also gradually separated, and the insertion rod 21 can pull the movable bar 20 to gradually return to its original position under the action of the reset spring 23.

[0040] like Figure 6 As shown, the fixed plate 10 is provided with an arc groove 26 at a position directly opposite to the ball 78, the ball 78 is located in the arc groove 26, and the arc groove 26 is located on the diameter of the annular protrusion 74;

[0041] By providing the arc groove 26, when the support column 76 drives the ball 78 to move along the cutting board, the arc groove 26 can restrict the support column 76, so that the support column 76 can move along the diameter direction of the annular protrusion 74, thereby ensuring that the positioning rod 12 and the positioning hole 13 can always remain facing each other, thereby ensuring that the movable mold 4 and the fixed mold 3 can always maintain a good mold closing state.

[0042] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit them.

Claims

1. A high-efficiency heat dissipation blow molding mold for processing plastic products, comprising a box body (1), characterized in that: A box door is arranged at the front side of the box body (1), a base (2) is installed on the inner wall of the bottom of the box body (1), a fixed mold (3) and a movable mold (4) are arranged at the top of the base (2), and injection grooves are provided on opposite sides of the fixed mold (3) and the movable mold (4), heat dissipation channels are provided inside the fixed mold (3) and the fixed mold (3), and both ends of the heat dissipation channels are connected to the bottom of the fixed mold (3) or the movable mold (4), a plurality of semi-cylindrical air injection holes (5) are provided at the top of the fixed mold (3) and the movable mold (4), and the air injection holes (5) of the movable mold (4) and the fixed mold (3) can be spliced ​​together, a vertical mounting plate (6) is arranged on the side where the fixed mold (3) and the movable mold (4) are separated, and deflection components (7) are respectively connected between the two mounting plates (6) and the fixed mold (3) and the movable mold (4), and the mounting plate (6) connected to the fixed mold (3) is fixed to the base (2). The movable mold (4) is connected to the movable mold (4), and a plurality of limit rods (8) are inserted and slidably penetrated on the mounting plate (6) connected to the movable mold (4). The limit rods (8) are vertically fixedly connected to the mounting plate (6) connected to the fixed mold (3). The free end of the limit rod (8) near the bottom is fixedly connected to the base (2) through a fixed block. A plurality of hydraulic push rods (9) are vertically fixedly connected to the side of the mounting plate (6) away from the movable mold (4). The ends of the plurality of hydraulic push rods (9) away from the mounting plate (6) are fixedly connected to the same fixed plate (10). The fixed plate (10) is fixedly connected to the base (2). An air injection assembly (11) is arranged on the top of the fixed mold (3). Positioning rods (12) are vertically fixedly connected to the four corner positions of the fixed mold (3) facing the movable mold (4). Positioning holes (13) are penetrated at the position of the movable mold (4) facing the positioning rods (12). The lower half of the opposite side of the movable mold (4) and the fixed mold (3) is provided with a smoothing component, the smoothing component comprising two L-shaped movable bars (20), the two movable bars (20) are horizontally symmetrically slidably inserted on both sides of the fixed mold (3) or the movable mold (4), and the movable bars (20) are flush with the side of the fixed mold (3) or the movable mold (4) close to the injection groove, the two ends of the two movable bars (20) are fixedly connected with an insertion rod (21), the insertion rod (21) is slidably sleeved with a sleeve (22), the sleeve (22) is vertically fixedly connected with the fixed mold (3) or the movable mold (4), the diameter of one end of the insertion rod (21) located inside the sleeve (22) is larger than the diameter of the entire body, and a return spring (23) is sleeved on the insertion rod (21). , the two ends of the return spring (23) are respectively fixedly connected to the end with a larger diameter of the insertion rod (21) and the inner wall of the sleeve (22); the top and bottom of the movable bar (20) on the movable mold (4) are respectively fixedly connected with an inclined surface pressing block (24) and an inclined surface pushing block (25); the top and bottom of the movable bar (20) on the movable mold (4) are respectively fixedly connected with an inclined surface pushing block (25) and an inclined surface pressing block (24); the inclined surface pushing block (25) and the inclined surface pressing block (24) on the movable mold (4) can respectively be kept in opposition to the inclined surface pressing block (24) and the inclined surface pushing block (25) on the fixed mold (3); and the inclined surfaces of the inclined surface pressing block (24) and the inclined surface pushing block (25) located in the opposing position are kept in opposition, and the two can be in contact; The deflection assembly (7) comprises a connecting column (71), the connecting column (71) being fixedly connected to the center of the movable mold (4) or the fixed mold (3) near the adjacent mounting plate (6), a connecting ball (72) being rotatably mounted on the connecting column (71), a connecting block (73) being fixedly connected between the connecting ball (72) and the movable mold (4) or the fixed mold (3), a concentric annular protrusion (74) being arranged on the periphery of the connecting column (71), the annular protrusion (74) being fixedly connected to the movable mold (4) or the fixed mold (3), the outer side surface of the annular protrusion (74) being of spherical design, and the annular protrusion (74) The outer side of the mounting plate (6) is rotatably connected to a fixing ring (75), and the fixing ring (75) is fixedly connected to the adjacent mounting plate (6). A plurality of mounting holes are formed through the side of the annular protrusion (74) close to the adjacent mounting plate (6), and the plurality of mounting holes are distributed in an annular shape. A support column (76) is slidably installed in the mounting hole, and a support spring (77) is fixedly connected between the support column (76) and the inner wall of the mounting hole. A ball (78) is installed at one end of the support column (76) away from the support spring (77), and the ball (78) can always fit tightly with the mounting plate (6) under the action of the support spring (77).

2. According to claim 1, a high-efficiency heat dissipation blow molding mold for processing plastic products is characterized by: The gas injection assembly (11) comprises a horizontally arranged gas injection pipe (111), the bottom end of the gas injection pipe (111) is vertically connected to a plurality of inserting pipes (112), and the plurality of inserting pipes (112) are opposite to the plurality of gas injection holes (5) one by one, the top of the gas injection pipe (111) is connected to a first electric push rod (113), the first electric push rod (113) and the top of the fixed mold (3) are connected to a mounting frame (114), the side of the gas injection pipe (111) away from the movable mold (4) is connected to an air inlet pipe (115), and the free end of the air inlet pipe (115) is connected to a compressor (116).

3. A high-efficiency heat dissipation blow molding mold for processing plastic products according to claim 2, characterized in that: A concentric pressing ring (14) is arranged on the inner side of the annular protrusion (74); a plurality of pressing rods (15) are vertically fixedly connected to a side of the pressing ring (14) close to the adjacent mounting plate (6); the pressing rods (15) are vertically slidably inserted into the adjacent mounting plate (6); a pressing plate (16) is fixedly connected to one end of the plurality of pressing rods (15) away from the pressing ring (14); a second electric push rod (17) is fixedly connected between the pressing plate (16) and the fixed plate (10); a pressure sensor (18) is arranged at a position of the end of the positioning hole (13) away from the fixed mold (3); the pressure sensor (18) and the two second electric push rods (17) are electrically connected together; a spring sheet (19) is fixedly connected between the two pressure sensors (18) at the same height; and a mounting block is fixedly connected between the spring sheet (19) and a side of the movable mold (4) away from the fixed mold (3).

4. The high-efficiency heat dissipation blow molding mold for processing plastic products according to claim 1, characterized in that: An arc surface groove (26) is provided at a position of the fixing plate (10) facing the ball (78), the ball (78) is located in the arc surface groove (26), and the arc surface groove (26) is located on the diameter of the annular protrusion (74).

5. The high-efficiency heat dissipation blow molding mold for processing plastic products according to claim 1, characterized in that: The movable bar (20) is made of metal, and vertical anti-slip grooves are evenly arranged on the side of the movable bar (20) that contacts the raw material.

6. The high-efficiency heat dissipation blow molding mold for processing plastic products according to claim 1, characterized in that: The length of the positioning rod (12) is greater than the thickness of the movable mold (4), and the positioning rod (12) is capable of contacting the facing pressure sensor (18).

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