Blow molding mechanism for plastic packaging barrel for food

Abstract

The present invention provides a blow molding mechanism for a plastic packaging barrel for food, which belongs to the technical field of plastic packaging barrel processing, including a bottom plate, fixed plates are arranged on both sides of the bottom plate, the fixed plates are connected to hydraulic cylinders, the fixed plates are connected to slide rails, one end of the hydraulic cylinder is provided with a stabilizing frame plate and a slide plate, an electric telescopic rod and a support plate are arranged above the bottom plate, and also includes: a mold assembly, the mold assembly uses water flow to achieve cooling of the processed parts; a blowing assembly, the blowing assembly uses airflow to complete the blow molding of the barrel body and assists the mold assembly in heat dissipation; a descaling assembly, the descaling assembly uses chemical liquid to remove the scale inside the mold assembly to ensure the cooling effect. The invention has the beneficial effects: the through hole is opened by the heat expansion of the telescopic airbag 2, and the stored chemical liquid is transported to the inside of the cooling pipe, and the scale formed on the inner wall of the cooling pipe is removed by chemical reaction, thereby improving the cleaning effect while avoiding downtime and improving processing efficiency.

Description

Technical Field

[0001] The invention relates to the technical field of plastic packaging barrel processing, in particular to a blow molding mechanism for a plastic packaging barrel for food. Background Art

[0002] Plastic packaging barrels are not easy to break, rust-proof, light, and oil-resistant, strong corrosion-resistant, and have excellent performance. They are mostly used for packaging dangerous goods that require heat preservation, moisture-proof, pressure-resistant, and corrosion-resistant. Plastic packaging barrel blow molding is to put the plastic blank extruded from the extruder and still in a softened state into the molding mold, and then introduce compressed air to use the air pressure to deform the blank along the mold cavity, thereby blowing it into shape.

[0003] If the water used in the cooling system of the mold in the blow molding mechanism is of poor quality and contains more minerals or other chemical impurities, it will promote the formation of scale, and the circulating water may be mixed with impurities such as iron filings and fine sand. These impurities are easy to deposit in the cooling channel to form scale or directly block the channel. In addition, the thermal conductivity of scale is poor, and its presence will significantly reduce the ability of the cooling system to exchange heat through the pipe wall. Due to the reduced cooling efficiency, the product may be cooled unevenly, and the temperature control of the mold becomes unstable, which in turn leads to the problem of reduced product quality. Therefore, it is necessary to shut down the machine and use a cleaning rod or nylon brush to poke into the cooling water channel by the operator to remove large pieces of sediment, or use high-pressure air to blow into the cooling water channel with cooling water for flushing, so that the sediment is loosened or falls off. However, this cleaning method is less effective and cannot completely clean the scale. There is a blind spot for cleaning, and normal production and processing will be affected after shutdown. In order to maintain cooling efficiency, pipeline cleaning needs to be performed more frequently, which increases maintenance costs. How to invent a blow molding mechanism for plastic packaging barrels for food to solve these problems has become an urgent problem for technicians in this field. Summary of the invention

[0004] In order to make up for the above shortcomings, the present invention provides a blow molding mechanism for a plastic packaging barrel for food, aiming to solve the problems of poor cleaning effect, blind cleaning areas, affecting production and processing efficiency, and increasing maintenance costs.

[0005] The present invention is achieved in that:

[0006] The present invention provides a blow molding mechanism for a plastic packaging barrel for food, comprising a bottom plate, fixed plates are arranged on both sides of the bottom plate, the fixed plates are connected to a hydraulic cylinder, the fixed plates are connected to a slide rail, a stable frame plate and a slide plate are arranged at one end of the hydraulic cylinder, an electric telescopic rod and a support plate are arranged above the bottom plate, and further comprising:

[0007] A mold assembly, wherein the mold assembly is located above the bottom plate and utilizes water flow to cool the processed parts;

[0008] A blowing component, which is located above the mold component. The blowing component uses air flow to complete the blow molding of the barrel body and assists the mold component in dissipating heat.

[0009] A descaling component, which is fixedly connected to the mold component. The descaling component uses chemical liquid medicine to remove the water scale inside the mold component to ensure the cooling effect.

[0010] Preferably, the bottom plate is fixedly connected to the fixed plate. One side of the fixed plate is fixedly connected to the hydraulic cylinder. One end of the hydraulic cylinder is fixedly connected to the stable frame plate. The lower end of the stable frame plate is fixedly connected to the sliding plate. The sliding plate is slidably connected to the sliding rail. The sliding rail is fixedly connected to the upper side wall of the bottom plate.

[0011] Preferably, the mold component includes a mold plate. A cooling channel is opened inside the mold plate. The cooling channel is integrally arranged in a "C" shape. The lower end of the mold plate is fixedly connected with a water inlet pipe and a water outlet pipe. The water inlet pipe and the water outlet pipe are respectively communicated with both ends of the cooling channel.

[0012] Preferably, a placement groove is opened on one side of the mold plate. A first telescopic airbag and a magnetic block are arranged inside the placement groove. The first telescopic airbag is cylindrical. One end of the first telescopic airbag is fixedly connected to the inner wall of the placement groove. The other end of the first telescopic airbag is fixedly connected to the magnetic block. The magnetic block is slidably connected to the inner wall of the placement groove.

[0013] Preferably, the blowing component includes an air inlet pipe and a blowing pipe. The air inlet pipe is a flexible pipe. The air inlet pipe is fixedly connected to the outer wall of the blowing pipe. The blowing pipe is made of metal. One end of the blowing pipe is fixedly connected to an electric telescopic rod. The upper end of the electric telescopic rod is fixedly connected to a support plate. The support plate is fixedly connected to an external support frame.

[0014] Preferably, a communicating pipe is fixedly connected to the outer wall of the blowing pipe. The communicating pipe is arranged in an "L" shape. An expansion frame is fixedly connected to the communicating pipe. A blocking plate is slidably connected to the inner wall of the expansion frame. The side area of the blocking plate is larger than the inner diameter of the communicating pipe. The end of the communicating pipe far from the blowing pipe is fixedly connected to a shunt pipe. A blowing frame is fixedly connected to the side wall of the shunt pipe close to the blowing pipe.

[0015] Preferably, a telescopic spring, a movable rod and a lifting plate are arranged at the lower end of the expansion frame. One end of the movable rod is fixedly connected to the side wall of the lifting plate. The other end of the movable rod vertically penetrates the side wall of the expansion frame and is fixedly connected to the blocking plate. The telescopic spring is sleeved on the outer wall of the movable rod. The two ends of the telescopic spring are respectively fixedly connected to the side wall of the expansion frame and the side wall of the lifting plate. A magnet is fixedly connected to the lower side wall of the lifting plate.

[0016] Preferably, the descaling assembly includes a liquid storage tank, a transition box and a fixed frame, one end of the fixed frame is fixedly connected to the side wall of the mold plate, the other end of the fixed frame is fixedly connected to the transition box, a sealing plug is provided inside the transition box, a through hole is opened in the side wall of the transition box, and a plug-in tube is fixedly connected to the lower end of the transition box, one end of the plug-in tube is connected to the cooling channel.

[0017] Preferably, one end of the transition box away from the fixed frame is fixedly connected to the liquid storage tank, the upper end of the liquid storage tank is fixedly connected with a riser, the outer diameter of the riser is smaller than the inner diameter of the shunt pipe, and the side wall of the liquid storage tank is provided with scale lines.

[0018] Preferably, a telescopic airbag 2 and a heat-conducting rod are provided inside the fixed frame, and the heat-conducting rod is located inside the telescopic airbag 2. One end of the telescopic airbag 2 and the heat-conducting rod are fixedly connected to the side wall of the mold plate, and the other end of the telescopic airbag 2 is fixedly connected to a connecting rod. The end of the connecting rod away from the telescopic airbag 2 passes through the through hole and is fixedly connected to the sealing plug.

[0019] The beneficial effects of the present invention are:

[0020] When the mold plate gradually heats up due to excessive scale adhesion, the telescopic airbag 2 is heated and expanded through the heat conducting rod, and at the same time, the sealing plug opens the through hole, and the chemical liquid stored in the liquid storage tank is transported to the inside of the cooling pipe through the transition box and the plug-in pipe, so that the scale formed on the inner wall of the cooling pipe is removed by chemical reaction, and the impurities are quickly discharged from the outlet pipe in conjunction with the flow of coolant, thereby improving the cleaning effect and avoiding shutdown work, thereby improving the processing efficiency; in addition, as the temperature rises, the telescopic airbag 1 will also drive the magnetic block to extend out of the placement slot, and the sealing plate will no longer block the inner wall of the connecting pipe through the movable rod, the lifting plate and the telescopic spring, so that part of the gas is discharged into the liquid storage tank through the shunt pipe to pressurize the chemical liquid, thereby increasing the speed of discharging the liquid through the through hole, increasing the dosage of the chemical liquid input into the cooling pipe, improving the cleaning efficiency, and ensuring the cooling effect. At the same time, another part of the gas is blown to the outer wall of the mold plate through the blowing frame to reduce the accumulation of heat around the mold plate and increase the heat dissipation speed of the mold plate. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the present invention and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without paying creative work.

[0022] Figure 1It is a schematic diagram of the overall structure of a blow molding mechanism for a plastic packaging barrel for food provided by an embodiment of the present invention;

[0023] Figure 2 It is a schematic structural diagram of a blowing assembly of a blow molding mechanism for a plastic packaging barrel for food provided by an embodiment of the present invention;

[0024] Figure 3 It is a schematic diagram of a half-section structure of a blowing component of a blow molding mechanism for a plastic packaging barrel for food provided by an embodiment of the present invention;

[0025] Figure 4 It is a schematic structural diagram of a mold assembly and a descaling assembly of a blow molding mechanism for a plastic packaging barrel for food provided in an embodiment of the present invention;

[0026] Figure 5 This is a schematic diagram of the cooling channel structure of a blow molding mechanism for a plastic packaging barrel for food provided in an embodiment of the present invention;

[0027] Figure 6 A blow molding mechanism for a plastic packaging barrel for food provided by the embodiment of the present invention Figure 5 A schematic diagram of the structure enlargement in the middle;

[0028] Figure 7 It is a schematic diagram of a half-section structure of a descaling component of a blow molding mechanism for a plastic packaging barrel for food provided by an embodiment of the present invention;

[0029] Figure 8 It is a cross-sectional view of a descaling component of a blow molding mechanism for a plastic packaging barrel for food provided in an embodiment of the present invention.

[0030] In the figure: 1, bottom plate; 2, fixed plate; 3, hydraulic cylinder; 4, stable frame plate; 5, mold assembly; 51, mold plate; 52, magnetic block; 53, water inlet pipe; 54, water outlet pipe; 55, cooling channel; 56, placement slot; 57, telescopic airbag 1; 6, blowing assembly; 61, air inlet pipe; 62, air blowing pipe; 63, connecting pipe; 64, expansion frame; 65, telescopic spring; 66, movable rod; 67, lifting plate ; 68. Magnet; 69. Diverter pipe; 610. Blowing frame; 611. Sealing plate; 7. Electric telescopic rod; 8. Support plate; 9. Descaling assembly; 91. Vertical pipe; 92. Liquid storage tank; 921. Scale line; 93. Transition box; 94. Fixed frame; 95. Telescopic airbag 2; 96. Heat conducting rod; 97. Plug-in tube; 98. Connecting rod; 99. Through hole; 910. Sealing plug; 10. Slide rail; 11. Slide plate. DETAILED DESCRIPTION

[0031] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are 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 creative work are within the scope of protection of the present invention.

[0032] Embodiment 1, refer to Figure 1-Figure 8 A blow molding mechanism for a plastic packaging barrel for food, comprising a bottom plate 1, fixed plates 2 are arranged on both sides of the bottom plate 1, the fixed plate 2 is connected to a hydraulic cylinder 3, the fixed plate 2 is connected to a slide rail 10, a stable frame plate 4 and a slide plate 11 are arranged at one end of the hydraulic cylinder 3, an electric telescopic rod 7 and a support plate 8 are arranged above the bottom plate 1, and further comprising:

[0033] The mold assembly 5 is located above the bottom plate 1, and the mold assembly 5 uses water flow to cool the processed parts;

[0034] The blowing assembly 6 is located above the mold assembly 5. The blowing assembly 6 uses airflow to complete the blow molding of the barrel and assists the mold assembly 5 in heat dissipation.

[0035] The descaling component 9 is fixedly connected to the mold component 5. The descaling component 9 uses chemical liquid to remove scale inside the mold component 5 to ensure the cooling effect.

[0036] Furthermore, the bottom plate 1 is fixedly connected to the fixed plate 2, one side of the fixed plate 2 is fixedly connected to the hydraulic cylinder 3, one end of the hydraulic cylinder 3 is fixedly connected to the stabilizing frame plate 4, the lower end of the stabilizing frame plate 4 is fixedly connected to the slide plate 11, the slide plate 11 is slidably connected to the slide rail 10, and the slide rail 10 is fixedly connected to the upper side wall of the bottom plate 1.

[0037] It should be noted that: the bottom plate 1, as an important component in blow molding, is parallel to the horizontal plane during installation. This can ensure that after the fixed plate 2 is fixed, the two hydraulic cylinders 3 can be aligned parallelly, and during the process of driving the slide plate 11 to move, it can slide more stably with the slide rail 10, so as to ensure the alignment of the two mold plates 51 through the support of the stabilizing frame plate 4, avoid misalignment, and thus ensure the complete molding of the oil barrel within the mold plate 51, improving the production quality of the product. When processing the oil barrel, first, the melted material is sent between the two mold plates 51 by an extruder. In the initial state, the two mold plates 51 are in a separated state. When one end of the material is lower than the lower end of the mold plate 51, the mobile end of the hydraulic cylinder 3 is controlled to extend, and the two mold plates 51 are driven to approach each other through the action of the stabilizing frame plate 4, the slide plate 11, and the slide rail 10, so as to clamp the material into the mold cavity. At this time, a cutter is used to cut off the material at the upper end of the mold plate 51, and then air is blown through the air blowing assembly 6 to complete the blow molding of the material. Finally, the molded material is taken out and trimmed.

[0038] Referring to Figure 4 、 Figure 5 、 Figure 7 and Figure 8 , further; the mold assembly 5 includes a mold plate 51. A cooling channel 55 is provided inside the mold plate 51. The cooling channel 55 is integrally arranged in a "C" shape. A water inlet pipe 53 and a water outlet pipe 54 are fixedly connected to the lower end of the mold plate 51. The water inlet pipe 53 and the water outlet pipe 54 are respectively communicated with both ends of the cooling channel 55.

[0039] Cooling during blow molding: When the air blowing assembly 6 performs blow molding, coolant is conveyed to the water inlet pipe 53 by an external water pump. The water flows through the cooling channel 55 in a cycle and then is discharged from the water outlet pipe 54. Moreover, the periphery of the cooling channel 55 can communicate with the side wall of the mold plate 51. However, the openings of the cooling channel 55 are blocked by a plurality of plugging heads, and the plugging heads are detachable. Through this straight-through channel, the water flow can pass quickly, so as to better take away the heat generated during the processing of the mold plate 51. In addition, after there is more scale, the plugging heads can be opened under other circumstances and a high-pressure inflation device can be used to clean the straight-through pipes, so as to reduce the residue of scale.

[0040] Furthermore; the descaling assembly 9 includes a liquid storage tank 92, a transition box 93 and a fixed frame 94, one end of the fixed frame 94 is fixedly connected to the side wall of the mold plate 51, and the other end of the fixed frame 94 is fixedly connected to the transition box 93, a sealing plug 910 is provided inside the transition box 93, a through hole 99 is opened on the side wall of the transition box 93, and a plug-in tube 97 is fixedly connected to the lower end of the transition box 93, and one end of the plug-in tube 97 is connected to the cooling channel 55; a telescopic airbag 2 95 and a heat conducting rod 96 are provided inside the fixed frame 94, and the heat conducting rod 96 is located inside the telescopic airbag 2 95, one end of the telescopic airbag 2 95 and the heat conducting rod 96 are fixedly connected to the side wall of the mold plate 51, and the other end of the telescopic airbag 2 95 is fixedly connected to a connecting rod 98, and the end of the connecting rod 98 away from the telescopic airbag 2 95 passes through the through hole 99 and is fixedly connected to the sealing plug 910.

[0041] The descaling component 9 effectively removes scale: after the cooling channel 55 has been cooled for a long time, the temperature will affect the minerals or other chemicals in the coolant to form scale or impurities attached to the inner wall of the channel, thereby hindering the normal circulation of water and reducing the water flow, thereby affecting the heat transfer efficiency and failing to ensure the cooling effect. Therefore, when the mold plate 51 gradually heats up due to excessive scale attachment, the heat will be gradually transferred to the inside of the telescopic airbag 2 95 through the heat conducting rod 96, and the telescopic airbag 2 95 itself will also absorb part of the heat of the mold plate 51. After the heat of the telescopic airbag 2 95 gradually accumulates, the activity of the gas molecules inside it increases, causing the gas to begin to expand, thereby driving the telescopic airbag 2 95 to expand, and the telescopic airbag 2 95 is The square configuration makes it possible for one end of the telescopic airbag 95 to move away from the mold plate 51 after being heated, and at the same time, the connecting rod 98 is driven to move synchronously, so that the sealing plug 910 is close to the scale line 921. At this time, the through hole 99 opens and the chemical liquid stored in the liquid storage tank 92 flows into the transition tank 93, and then is transported to the inside of the cooling channel 55 through the plug-in tube 97 to mix with the coolant, thereby removing the scale formed on the inner wall of the cooling channel 55 through a chemical reaction, and flushing the substances produced by the flow reaction of the coolant, and finally discharging the impurities from the outlet pipe 54, thereby improving the cleaning effect and avoiding downtime, thereby improving the processing efficiency. The use of chemical liquid is selected according to the specific situation, such as hydrochloric acid, acetic acid, citric acid and sodium hydroxide.

[0042] The sealing plug 910 is made of rubber material and has excellent sealing and corrosion resistance. It can effectively prevent the chemical liquid from leaking from the inside of the liquid storage tank 92 to the inside of the transition box 93 when not in use. Since the effect produced by a small amount of leakage is also poor, the waste of medicine is avoided by sealing.

[0043] Furthermore; one end of the transition box 93 away from the fixed frame 94 is fixedly connected to the liquid storage tank 92, and the upper end of the liquid storage tank 92 is fixedly connected to a riser 91, the outer diameter of the riser 91 is smaller than the inner diameter of the shunt pipe 69, and the side wall of the liquid storage tank 92 is provided with a scale line 921.

[0044] Use of liquid storage tank 92: A detachable cover is provided at the upper end of liquid storage tank 92. Sufficient chemical liquid can be added to the interior of liquid storage tank 92 through vertical pipe 91 for storage to facilitate subsequent descaling. The scale line 921 is provided to facilitate observation of the capacity of the chemical liquid inside liquid storage tank 92, so that the operator can replenish it in time to avoid too little solution affecting the descaling effect.

[0045] Example 2, refer to Figure 2-Figure 6 , further; a placement groove 56 is opened on one side of the mold plate 51, and a telescopic airbag 57 and a magnetic block 52 are provided inside the placement groove 56. The telescopic airbag 57 is cylindrical, and one end of the telescopic airbag 57 is fixedly connected to the inner wall of the placement groove 56, and the other end of the telescopic airbag 57 is fixedly connected to the magnetic block 52, and the magnetic block 52 is slidably connected to the inner wall of the placement groove 56;

[0046] Improve the descaling effect of the descaling component 9: The setting of the placement groove 56, on the one hand, limits the moving range of the telescopic airbag 57 to ensure its stable movement, and on the other hand, it can better gather heat to avoid the rapid diffusion of heat in the telescopic airbag 57. The telescopic airbag 57 is the key to improving the descaling effect. After the cooling channel 55 is cooled for a long time, the formation of scale hinders the normal circulation of water and reduces the heat loss of the mold plate 51 during normal operation, thereby increasing the heat of the mold plate 51 itself. After the heat diffuses to the placement groove 56, its internal temperature rises. When the temperature of the telescopic airbag 57 gradually rises to a certain level, it will begin to expand. At this time, the telescopic airbag 57 will drive the magnetic block 52 to extend out of the placement groove 56, thereby providing sufficient preparation for subsequent heat dissipation to ensure subsequent heat dissipation efficiency and blow molding quality.

[0047] Furthermore; the blowing assembly 6 includes an air inlet pipe 61 and an air blowing pipe 62, the air inlet pipe 61 is a hose, the air inlet pipe 61 is fixedly connected to the outer wall of the air blowing pipe 62, the air blowing pipe 62 is made of metal, one end of the air blowing pipe 62 is fixedly connected to the electric telescopic rod 7, the upper end of the electric telescopic rod 7 is fixedly connected to the support plate 8, and the support frame outside the support plate 8 is fixedly connected.

[0048] Blow molding of plastic packaging barrels: After the mold plate 51 clamps the material, the moving end of the electric telescopic rod 7 is controlled to extend, thereby driving the blowing pipe 62 to move down and insert it into the inner wall of the material at the opening of the mold plate 51, and then blowing through the air inlet pipe 61 to complete the blow molding of the oil barrel. In addition, the blowing pipe 62 can be made of stainless steel metal, which can effectively avoid the adhesion of the material and reduce subsequent cleaning work, and the support plate 8 and the support frame are fixed by bolts.

[0049] Furthermore, a telescopic spring 65, a movable rod 66 and a lifting plate 67 are provided at the lower end of the expansion frame 64. One end of the movable rod 66 is fixedly connected to the side wall of the lifting plate 67, and the other end of the movable rod 66 vertically penetrates the side wall of the expansion frame 64 and is fixedly connected to the blocking plate 611. The telescopic spring 65 is sleeved on the outer wall of the movable rod 66, and the two ends of the telescopic spring 65 are respectively fixedly connected to the side wall of the expansion frame 64 and the side wall of the lifting plate 67, and the lower side wall of the lifting plate 67 is fixedly connected with a magnet 68.

[0050] Improvement of descaling effect: after the magnetic block 52 extends out of the placement slot 56, the connecting pipe 63 is moved along with the downward movement of the air blowing pipe 62, and finally the shunt pipe 69 is inserted to the outside of the vertical pipe 91. However, the lower end of the magnet 68 and the upper end of the magnetic block 52 have the same polarity, so when the lifting plate 67 drives the magnet 68 to move downward, the mutual repulsive force between the magnet 68 and the magnetic block 52 will gradually increase, and the position of the magnetic block 52 is fixed, so the magnet 68 at this time will be subjected to an upward repulsive force, thereby driving the movable rod 66 and the lifting plate 67 to move upward, and at the same time causing the telescopic spring 65 to be compressed. In this process, the blocking plate 611 is also synchronously driven upward due to the movement of the movable rod 66. At this time, the blocking plate 611 no longer blocks the inner wall of the connecting pipe 63, thereby opening the connecting pipe 63. At this time, when the air blowing pipe 62 is blowing, part of the air flow will flow out along the connecting pipe 63, and then the gas inside the connecting pipe 63 will flow evenly to the inside of the two shunt pipes 69.

[0051] At this time, part of the gas inside the shunt pipe 69 is discharged into the liquid storage tank 92 through the riser 91. Because the liquid storage tank 92 as a whole has only two channels, the internal air pressure can be increased by continuously inputting gas into the liquid storage tank 92, thereby pressurizing the chemical liquid, thereby increasing the speed of discharging the liquid from the through hole 99 and increasing the dosage of the chemical liquid input into the cooling channel 55, thereby increasing the reaction rate with the scale, thereby improving the cleaning efficiency and ensuring the cooling effect.

[0052] Furthermore, a connecting pipe 63 is fixedly connected to the outer wall of the air blowing pipe 62, and the connecting pipe 63 is arranged in an "L" shape. The connecting pipe 63 is fixedly connected to an expansion frame 64, and a sealing plate 611 is slidably connected to the inner wall of the expansion frame 64. The side area of ​​the sealing plate 611 is larger than the inner diameter of the connecting pipe 63. The end of the connecting pipe 63 away from the air blowing pipe 62 is fixedly connected to a diverter pipe 69, and the diverter pipe 69 is fixedly connected to a blowing frame 610 on the side wall close to the air blowing pipe 62.

[0053] Heat dissipation of the blowing frame 610: The other part of the gas inside the diverter pipe 69 is blown toward the outer wall of the mold plate 51 through the blowing frame 610. The advantage of this is that it can effectively improve the flow of air on one side of the mold plate 51, thereby quickly taking away the heat and reducing the accumulation of heat around the mold plate 51, thereby assisting the heat dissipation of the mold plate 51, thereby avoiding problems with product processing quality caused by overheating of the mold plate 51.

[0054] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A blow molding mechanism for a plastic packaging barrel for food, comprising a bottom plate (1), fixed plates (2) are provided on both sides of the bottom plate (1), the fixed plate (2) is connected to a hydraulic cylinder (3), the fixed plate (2) is connected to a slide rail (10), one end of the hydraulic cylinder (3) is provided with a stabilizing frame plate (4) and a slide plate (11), an electric telescopic rod (7) and a support plate (8) are provided above the bottom plate (1), characterized in that: Also includes: A mold assembly (5), wherein the mold assembly (5) is located above the base plate (1); An air blowing assembly (6), wherein the air blowing assembly (6) is located above the mold assembly (5); A descaling component (9), wherein the descaling component (9) is fixedly connected to the mold component (5); The air blowing assembly (6) comprises an air inlet pipe (61) and an air blowing pipe (62); the air inlet pipe (61) is a hose; the air inlet pipe (61) is fixedly connected to the outer wall of the air blowing pipe (62); the air blowing pipe (62) is made of metal; one end of the air blowing pipe (62) is fixedly connected to the electric telescopic rod (7); the upper end of the electric telescopic rod (7) is fixedly connected to the support plate (8); and the support plate (8) is fixedly connected to the external support frame; The outer wall of the air blowing pipe (62) is fixedly connected to a connecting pipe (63), the connecting pipe (63) is arranged in an "L" shape, the connecting pipe (63) is fixedly connected to an expansion frame (64), the inner wall of the expansion frame (64) is slidably connected to a blocking plate (611), the side surface area of ​​the blocking plate (611) is larger than the inner diameter of the connecting pipe (63), one end of the connecting pipe (63) away from the air blowing pipe (62) is fixedly connected to a diverter pipe (69), and the side wall of the diverter pipe (69) close to the air blowing pipe (62) is fixedly connected to a blowing frame (610); The lower end of the expansion frame (64) is provided with a telescopic spring (65), a movable rod (66) and a lifting plate (67); one end of the movable rod (66) is fixedly connected to the side wall of the lifting plate (67); the other end of the movable rod (66) vertically penetrates the side wall of the expansion frame (64) and is fixedly connected to the blocking plate (611); the telescopic spring (65) is sleeved on the outer wall of the movable rod (66); the two ends of the telescopic spring (65) are respectively fixedly connected to the side wall of the expansion frame (64) and the side wall of the lifting plate (67); the lower side wall of the lifting plate (67) is fixedly connected with a magnet (68); The descaling assembly (9) comprises a liquid storage box (92), a transition box (93) and a fixed frame (94); one end of the fixed frame (94) is fixedly connected to the side wall of the mold plate (51); the other end of the fixed frame (94) is fixedly connected to the transition box (93); a sealing plug (910) is provided inside the transition box (93); a through hole (99) is provided on the side wall of the transition box (93); a plug-in tube (97) is fixedly connected to the lower end of the transition box (93); one end of the plug-in tube (97) is connected to the cooling channel (55); One end of the transition box (93) away from the fixed frame (94) is fixedly connected to the liquid storage box (92); the upper end of the liquid storage box (92) is fixedly connected to a standpipe (91); the outer diameter of the standpipe (91) is smaller than the inner diameter of the diverter pipe (69); and a side wall of the liquid storage box (92) is provided with scale marks (921); Inside the fixed frame (94), there is a second telescopic airbag (95) and a heat conducting rod (96). The heat conducting rod (96) is located inside the second telescopic airbag (95). One ends of the second telescopic airbag (95) and the heat conducting rod (96) are fixedly connected to the side wall of the mold plate (51). The other end of the second telescopic airbag (95) is fixedly connected to a connecting rod (98). The end of the connecting rod (98) away from the second telescopic airbag (95) passes through a through hole (99) and is fixedly connected to a sealing plug (910).

2. A blow molding mechanism for a plastic packaging barrel for food according to claim 1, characterized in that: The bottom plate (1) is fixedly connected to the fixed plate (2). One side of the fixed plate (2) is fixedly connected to a hydraulic cylinder (3). One end of the hydraulic cylinder (3) is fixedly connected to a stabilizing frame plate (4). The lower end of the stabilizing frame plate (4) is fixedly connected to a sliding plate (11). The sliding plate (11) is slidably connected to a slide rail (10). The slide rail (10) is fixedly connected to the upper side wall of the bottom plate (1).

3. A blow molding mechanism for a plastic packaging barrel for food according to claim 1, characterized in that: The mold assembly (5) includes a mold plate (51). Inside the mold plate (51), a cooling channel (55) is formed. The cooling channel (55) is integrally arranged in a "C" shape. The lower end of the mold plate (51) is fixedly connected to a water inlet pipe (53) and a water outlet pipe (54). The water inlet pipe (53) and the water outlet pipe (54) are respectively communicated with both ends of the cooling channel (55).

4. A blow molding mechanism for a plastic packaging barrel for food according to claim 3, characterized in that: On one side of the mold plate (51), a placement groove (56) is formed. Inside the placement groove (56), there is a first telescopic airbag (57) and a magnet (52). The first telescopic airbag (57) is cylindrical. One end of the first telescopic airbag (57) is fixedly connected to the inner wall of the placement groove (56). The other end of the first telescopic airbag (57) is fixedly connected to the magnet (52). The magnet (52) is slidably connected to the inner wall of the placement groove (56).

Images