Shell forming mold convenient to demold for blower production

Abstract

The invention relates to the field of blower shell forming molds, and particularly discloses a blower production shell forming mold convenient to demold, the blower production shell forming mold convenient to demold comprises a bottom plate, a base is fixedly connected to the upper surface of the bottom plate, sliding rods are symmetrically and fixedly connected to the upper surfaces of the two sides of the bottom plate, and the outer surfaces of the sliding rods are slidably sleeved with sliding plates; and the inner side surface of the sliding plate is fixedly connected with a top cover. As the outer chute and the inner chute are obliquely arranged, the outer sliding strip and the inner sliding strip are promoted to slide towards the outer side along the outer chute and the inner chute along with the upward movement of the outer connecting rod and the inner connecting rod, namely, the connecting area between the inner surface of the outer pipe and the blower shell and the connecting area between the outer surface of the inner pipe and the blower shell are greatly reduced; meanwhile, the blower shell is pushed to move upwards through the attaching ring at the top of the push rod, the difficulty of taking out the blower shell can be greatly reduced by reducing the contact area between the outer surface of the blower shell and the outer pipe and the contact area between the outer surface of the blower shell and the inner pipe when the blower shell is taken out, and meanwhile the possibility that the blower shell is damaged when taken out is greatly reduced.

Description

Technical Field

[0001] The invention relates to the field of hair dryer shell molding dies, in particular to a hair dryer shell molding die which is easy to demould and is used for hair dryer production. Background Art

[0002] In the field of hair dryer production, the performance of the shell molding mold plays a key role in product quality and production efficiency. Traditional hair dryer shell molding molds have many drawbacks in the demolding process. Its structural design lacks ingenuity, and often adopts a simple integral cavity. After molding, the shell fits tightly against the inner wall of the mold, and the friction is huge during demolding. This has led to an increase in the demand for demolding force, which can easily cause quality problems such as shell deformation and strain, and the scrap rate remains high, greatly increasing production costs. Moreover, the demolding process is cumbersome and tedious, and mostly relies on manual prying or knocking with the help of tools. It is not only extremely inefficient and difficult to adapt to the rhythm of modern large-scale production, but also due to improper operation, mold loss is aggravated, and the mold service life is shortened. Frequent maintenance and replacement of molds further increase the burden on enterprises, becoming a bottleneck obstacle to the efficient development of the industry.

[0003] In addition, the stability and automation of the injection molding process of traditional molds are also unsatisfactory. It is impossible to accurately control the filling pressure and flow of raw materials during injection molding, resulting in uneven shell thickness, frequent defects such as pores, and serious impact on product appearance and performance. The connection between demolding and injection molding processes is rigid, lacking coordinated optimization, and unable to automatically switch working states to achieve continuous and efficient production. Raw materials are prone to leaking during the demolding stage, which not only causes waste of raw materials, but also pollutes the working environment and endangers the health of operators. It poses a severe challenge to the sustainable development of enterprises, and it is urgent to overcome innovative mold design concepts and technical architectures. Summary of the invention

[0004] The present invention provides a shell forming mold for hair dryer production which is easy to demould, and solves the problems mentioned in the above background technology.

[0005] To achieve the above objectives, the present invention is implemented through the following technical solutions: a shell forming mold for hair dryer production that is easy to demould, comprising a bottom plate, the upper surface of the bottom plate is fixedly connected to a base, the upper surfaces of both sides of the bottom plate are symmetrically fixedly connected to sliding rods, the outer surface of the sliding rod is slidably sleeved with a slide plate, the inner surface of the slide plate is fixedly connected to a top cover, wherein the top cover is arranged directly above the base, and a feed hole is opened on the upper surface of the top cover, and further comprising:

[0006] A demoulding mechanism, wherein the demoulding mechanism is fixedly installed inside the base, wherein the demoulding mechanism moves up and down along the inner surface of the base;

[0007] A feeding mechanism, which is fixedly mounted inside the top cover, wherein the feeding mechanism works in conjunction with the demoulding mechanism;

[0008] The demoulding mechanism includes a mounting groove, which is arranged in a cylindrical shape and is opened through the middle upper surface of the base. An outer tube is arranged inside the mounting groove, and the upper and lower surfaces of the outer tube are respectively in the same horizontal plane with the upper and lower surfaces of the base, wherein the central axis of the outer tube is arranged to be consistent with the central axis of the mounting groove, and an inner tube is arranged inside the outer tube, and the diameter of the inner tube is smaller than that of the outer tube, wherein the upper and lower surfaces of the inner tube are also respectively in the same horizontal plane with the upper and lower surfaces of the base, and the central axis of the inner tube is arranged to be consistent with the central axis of the outer tube.

[0009] Preferably, an outer slide groove is provided through the side surface of the outer tube, and six outer slide grooves are arranged at fixed intervals around the central axis of the outer tube. A limiting groove is provided on the inner surface of the base, and six limiting grooves are also arranged, wherein six limiting grooves are directly opposite to the six outer slide grooves. An outer slide bar is slidably inlaid inside the outer slide groove, and the cross-section of the outer slide bar is set to be a boss shape. The outer end of the outer slide bar is slidably connected in the limiting groove, and the inner surface of the outer slide bar forms the same plane with the outer tube.

[0010] Preferably, an inner slide groove is penetrated through the side surface of the inner tube, and six inner slide grooves are arranged at fixed intervals around the central axis of the inner tube. An inner slide bar is slidably inlaid inside the inner slide groove, and the outer surface of the inner slide bar and the outer surface of the inner tube form the same plane, an outer oblique groove is penetrated through the side surface of the outer slide bar, and an inner oblique groove is penetrated through the side surface of the inner slide bar, wherein the outer oblique groove and the inner oblique groove are arranged in an inclined state.

[0011] Preferably, the inner part of the outer bevel groove is slidably connected to an outer ring, the inner part of the inner bevel groove is slidably connected to an inner ring, the bottom surface of the outer ring is fixedly connected to an outer connecting rod, three of the outer connecting rods are arranged at fixed intervals around the central axis of the outer ring, the bottom surface of the inner ring is fixedly connected to an inner connecting rod, three of the inner connecting rods are arranged at fixed intervals around the central axis of the inner ring, wherein the outer connecting rod and the bottom of the inner connecting rod are fixedly connected to a chassis.

[0012] Preferably, the two side surfaces of the chassis are symmetrically fixedly connected with working rods through connecting rods, and the ends of the working rods away from the chassis are respectively slidably connected to the upper surfaces of the bottom plate and the skateboard, the bottom surface of the skateboard is elastically connected to the upper surface of the bottom plate through a spring, and a accommodating groove is opened through the upper surface of the bottom plate.

[0013] Preferably, a sealing ring is slidably embedded in the cavity between the outer tube and the inner tube, a fitting ring is fitted on the upper surface of the sealing ring, a push rod is fixedly connected to the lower surface of the fitting ring, and the bottom of the push rod passes through the sealing ring and is fixedly connected to the upper surface of the chassis, wherein the push rod and the sealing ring are slidably connected.

[0014] Preferably, an extrusion groove is provided on the bottom surface of the sealing ring, and the extrusion groove is arranged in a ring shape, wherein a sliding ring is slidably connected inside the extrusion groove, and the sliding ring is fixedly connected to the outer surface of the push rod, and a corrugated ring is fixedly connected to the upper surface of the sliding ring, and the top of the corrugated ring is fixedly connected to the bottom surface of the sealing ring, wherein the corrugated ring is arranged in the extrusion groove.

[0015] Preferably, the feeding mechanism includes a temporary storage groove, which is opened inside the top cover, wherein the temporary storage groove is connected to the feeding hole, and an introduction groove is opened on the lower surface of the temporary storage groove, and the introduction groove is arranged in a cone shape, wherein the bottom of the introduction groove is connected to the cavity between the outer tube and the inner tube, and a working chamber is opened inside the top cover, and the working chamber is arranged below the temporary storage groove.

[0016] Preferably, an isolation ring is fixedly connected to the middle of the working chamber, and a limiting rod is fixedly connected to the outer surface of the isolation ring, wherein the limiting rods are arranged in pairs in parallel in a group, and a total of three groups of limiting rods are arranged, and each group of limiting rods is arranged between the introduction grooves, and a telescopic plate is fixedly connected and arranged through the inner surface of the isolation ring, and the outer end of the telescopic plate is slidably connected to the inner surface of the limiting rod, and a pressure relief groove is opened through the side wall of the introduction groove, and the pressure relief groove is connected to the inner cavity of the limiting rod, and the inner cavity of the isolation ring is connected to the internal cavity of the corrugated ring. When it is needed When the hair dryer shell is injection molded, the molten raw material can be injected into the temporary storage tank through the feed hole, and enters the cavity between the outer tube and the inner tube through the introduction groove in the temporary storage tank and is finally cooled and formed to complete the injection molding. When the injection-molded hair dryer shell needs to be taken out, the working rod can be pulled up by the hydraulic system. When the working rod moves up, the outer connecting rod, the inner connecting rod and the push rod will be prompted to move up synchronously through the chassis. As the outer connecting rod and the inner connecting rod move up, the outer ring and the inner ring will be prompted to move up, that is, the outer ring and the inner ring move up along the outer inclined groove and the inner inclined groove.

[0017] The present invention provides a shell forming mold for hair dryer production that is easy to demould. It has the following beneficial effects:

[0018] 1. The hair dryer shell molding mold for production which is easy to demold has an outer bevel groove and an inner bevel groove which are arranged at an angle. Therefore, as the outer connecting rod and the inner connecting rod move upward, the outer slide bar and the inner slide bar will slide outward along the outer slide groove and the inner slide groove, so that the connection area between the inner surface of the outer tube and the outer surface of the inner tube and the hair dryer shell is greatly reduced. At the same time, the hair dryer shell is pushed upward by the fitting ring on the top of the push rod. By reducing the contact area between the outer surface of the hair dryer shell and the outer tube and the inner tube when taking out the hair dryer shell, the difficulty of taking out the hair dryer shell can be greatly reduced, and the possibility of damage to the hair dryer shell when taking out can be greatly reduced.

[0019] 2. The hair dryer shell molding mold for production which is easy to demould, as the hair dryer shell moves upward, it will push the top cover to move upward along the slide rod, and when the bottom of the hair dryer shell finally moves to the top between the outer tube and the inner tube, it can be taken out. When the hair dryer shell is taken out, the top cover loses its supporting force, and will be reset under the action of elastic force and contact and reset with the base, at this time, the working rod is driven downward by the hydraulic system to reset, and at this time, the top of the outer tube and the inner tube have been sealed by the top cover, and when the working rod moves downward to reset, it will pull the fitting ring downward, that is, the cavity between the outer tube and the inner tube is in a negative pressure state, so that the molten raw material is extracted from the temporary storage tank through the introduction groove and enters the cavity between the outer tube and the inner tube, and the injection molding is automatically completed, which greatly improves the degree of automation and the convenience of use. At the same time, the injection molding in the form of negative pressure can greatly reduce the problem of product defects caused by holes in the cavity between the outer tube and the inner tube during injection molding.

[0020] 3. The hair dryer shell molding mold for production is easy to demould. When the hair dryer shell is taken out, the push rod moves up to prompt the sliding ring to move up, thereby squeezing the corrugated ring. When the corrugated ring can no longer be squeezed, it also drives the sealing ring and the fitting ring to move up to eject the hair dryer shell. When the corrugated ring is squeezed, the internal air pressure increases and the air pressure is transmitted to the isolation ring. The telescopic plate connected to the isolation ring prompts the telescopic plate to expand outward, thereby causing the telescopic plate to gradually seal the introduction groove, thereby automatically closing the introduction groove when the hair dryer shell is taken out, avoiding the problem of leakage of molten raw material when the hair dryer shell is taken out. When the push rod is reset, it pulls the corrugated ring to expand, thereby prompting the telescopic plate to start to shrink, so that the introduction groove is reconnected, thereby completing automatic injection molding, greatly improving the stability during injection molding. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a front view of the present invention;

[0022] Figure 2 It is a structural schematic diagram of the installation slot of the present invention;

[0023] Figure 3 It is a schematic diagram of the structure of the receiving tank of the present invention;

[0024] Figure 4 It is a schematic diagram of the structure of the limiting groove of the present invention;

[0025] Figure 5 It is a structural schematic diagram of the demoulding mechanism of the present invention;

[0026] Figure 6 It is a structural schematic diagram of the sealing ring of the present invention;

[0027] Figure 7 It is a structural schematic diagram of the feeding mechanism of the present invention;

[0028] Figure 8 It is a structural schematic diagram of the telescopic plate of the present invention.

[0029] In the figure: 1, bottom plate; 2, base; 3, slide bar; 4, slide plate; 5, top cover; 6, feed hole; 7, demoulding mechanism; 71, mounting groove; 72, outer tube; 73, inner tube; 74, outer slide groove; 75, limit groove; 76, outer slide bar; 77, inner slide groove; 78, inner slide bar; 79, outer inclined groove; 710, inner inclined groove; 711, outer ring; 712, inner ring; 713, outer connecting rod; 7 14. Inner connecting rod; 715. Chassis; 716. Working rod; 717. Accommodating groove; 718. Sealing ring; 719. Fitting ring; 720. Push rod; 721. Extrusion groove; 722. Sliding ring; 723. Corrugated ring; 8. Feeding mechanism; 81. Temporary storage groove; 82. Introducing groove; 83. Working chamber; 84. Isolation ring; 85. Limiting rod; 86. Telescopic plate; 87. Pressure relief groove. DETAILED DESCRIPTION

[0030] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0031] First embodiment: Figures 1 to 8 As shown, the present invention provides a technical solution: a shell forming mold for hair dryer production that is easy to demould, comprising a bottom plate 1, a base 2 is fixedly connected to the upper surface of the bottom plate 1, slide bars 3 are symmetrically fixedly connected to the upper surfaces of both sides of the bottom plate 1, a slide plate 4 is slidably sleeved on the outer surface of the slide bar 3, and a top cover 5 is fixedly connected to the inner surface of the slide plate 4, wherein the top cover 5 is arranged directly above the base 2, and a feed hole 6 is opened on the upper surface of the top cover 5, and further comprising:

[0032] The demoulding mechanism 7 is fixedly installed inside the base 2, wherein the demoulding mechanism 7 moves up and down along the inner surface of the base 2;

[0033] A feeding mechanism 8, which is fixedly mounted inside the top cover 5, wherein the feeding mechanism 8 works in conjunction with the demoulding mechanism 7;

[0034] The demoulding mechanism 7 includes a mounting groove 71, which is arranged in a cylindrical shape. The mounting groove 71 penetrates and is opened on the middle upper surface of the base 2. An outer tube 72 is arranged inside the mounting groove 71. The upper and lower surfaces of the outer tube 72 are respectively in the same horizontal plane with the upper and lower surfaces of the base 2, wherein the central axis of the outer tube 72 is arranged to be consistent with the central axis of the mounting groove 71. An inner tube 73 is arranged inside the outer tube 72. The diameter of the inner tube 73 is smaller than that of the outer tube 72. The upper and lower surfaces of the inner tube 73 are also respectively in the same horizontal plane with the upper and lower surfaces of the base 2, and the central axis of the inner tube 73 is arranged to be consistent with the central axis of the outer tube 72.

[0035] An outer slide groove 74 is provided on the side surface of the outer tube 72, and six outer slide grooves 74 are arranged at fixed intervals around the central axis of the outer tube 72. A limiting groove 75 is provided on the inner surface of the base 2, and six limiting grooves 75 are also provided, among which six limiting grooves 75 are directly opposite to the six outer slide grooves 74. An outer slide bar 76 is slidably inlaid inside the outer slide groove 74, and the cross-section of the outer slide bar 76 is set to be a boss shape. The outer end of the outer slide bar 76 is slidably connected in the limiting groove 75, and the inner surface of the outer slide bar 76 forms the same plane with the outer tube 72.

[0036] An inner slide groove 77 is penetrated through the side surface of the inner tube 73, and six inner slide grooves 77 are arranged at fixed intervals around the central axis of the inner tube 73. An inner slide bar 78 is slidably inlaid inside the inner slide groove 77, and the outer surface of the inner slide bar 78 forms the same plane as the outer surface of the inner tube 73. An outer oblique groove 79 is penetrated through the side surface of the outer slide bar 76, and an inner oblique groove 710 is penetrated through the side surface of the inner slide bar 78, wherein the outer oblique groove 79 and the inner oblique groove 710 are arranged in an inclined state.

[0037] The outer bevel groove 79 is internally slidably connected to an outer ring 711, the inner bevel groove 710 is internally slidably connected to an inner ring 712, the bottom surface of the outer ring 711 is fixedly connected to an outer connecting rod 713, three outer connecting rods 713 are arranged at fixed intervals around the central axis of the outer ring 711, the bottom surface of the inner ring 712 is fixedly connected to an inner connecting rod 714, three inner connecting rods 714 are arranged at fixed intervals around the central axis of the inner ring 712, wherein the bottom of the outer connecting rod 713 and the inner connecting rod 714 are fixedly connected to a chassis 715.

[0038] The two side surfaces of the chassis 715 are symmetrically fixedly connected with working rods 716 through connecting rods. The ends of the working rods 716 away from the chassis 715 are respectively slidably connected to the upper surfaces of the bottom plate 1 and the skateboard 4. The bottom surface of the skateboard 4 is elastically connected to the upper surface of the bottom plate 1 through a spring, and a receiving groove 717 is opened through the upper surface of the bottom plate 1.

[0039] A sealing ring 718 is slidably embedded in the cavity between the outer tube 72 and the inner tube 73, a fitting ring 719 is fitted on the upper surface of the sealing ring 718, a push rod 720 is fixedly connected to the lower surface of the fitting ring 719, and the bottom of the push rod 720 passes through the sealing ring 718 and is fixedly connected to the upper surface of the chassis 715, wherein the push rod 720 and the sealing ring 718 are slidably connected.

[0040] An extrusion groove 721 is provided on the bottom surface of the sealing ring 718, and the extrusion groove 721 is arranged in a ring shape, wherein a sliding ring 722 is slidably connected inside the extrusion groove 721, and the sliding ring 722 is fixedly connected to the outer surface of the push rod 720, and a corrugated ring 723 is fixedly connected to the upper surface of the sliding ring 722, and the top of the corrugated ring 723 is fixedly connected to the bottom surface of the sealing ring 718, wherein the corrugated ring 723 is arranged in the extrusion groove 721.

[0041] Second embodiment: Figures 1 to 8 As shown, the feeding mechanism 8 includes a temporary storage groove 81, which is opened inside the top cover 5, wherein the temporary storage groove 81 is connected to the feeding hole 6, and an introduction groove 82 is opened on the lower surface of the temporary storage groove 81, and the introduction groove 82 is set to be conical, wherein the bottom of the introduction groove 82 is connected to the cavity between the outer tube 72 and the inner tube 73, and a working chamber 83 is opened inside the top cover 5, and the working chamber 83 is set below the temporary storage groove 81.

[0042] An isolation ring 84 is fixedly connected to the middle of the working chamber 83, and a limiting rod 85 is fixedly connected to the outer surface of the isolation ring 84, wherein the limiting rods 85 are arranged in pairs in parallel in a group, and there are three groups of limiting rods 85 in total, and each group of limiting rods 85 is arranged between the introduction grooves 82. A telescopic plate 86 is fixedly provided on the inner surface of the isolation ring 84, and the outer end of the telescopic plate 86 is slidably connected to the inner surface of the limiting rod 85. A pressure relief groove 87 is penetrated through the side wall of the introduction groove 82, and the pressure relief groove 87 is connected to the inner cavity of the limiting rod 85, and the inner cavity of the isolation ring 84 is connected to the internal cavity of the corrugated ring 723.

[0043] During operation, when it is necessary to perform injection molding on the outer shell of the hair dryer, the molten raw material can be injected into the temporary storage groove 81 through the feed hole 6, and enter the cavity between the outer tube 72 and the inner tube 73 through the introduction groove 82 in the temporary storage groove 81 and finally cooled and molded to complete the injection molding. When it is necessary to take out the injection-molded hair dryer shell, the working rod 716 can be pulled up by the hydraulic system. When the working rod 716 moves up, the outer connecting rod 713, the inner connecting rod 714 and the push rod 720 will be synchronously moved up through the chassis 715, wherein as the outer connecting rod 713 and the inner connecting rod 714 move up, the outer ring 711 and the inner ring 712 will be moved up, that is, the outer ring 711 and the inner ring 712 move up along the outer inclined groove 79 and the inner inclined groove 710. The inner inclined groove 710 is arranged at an angle, so as the outer connecting rod 713 and the inner connecting rod 714 move upward, the outer slide bar 76 and the inner slide bar 78 will slide outward along the outer slide groove 74 and the inner slide groove 77, so that the connection area between the inner surface of the outer tube 72 and the outer surface of the inner tube 73 and the hair dryer shell is greatly reduced. At the same time, the hair dryer shell is pushed upward by the fitting ring 719 on the top of the push rod 720. By reducing the contact area between the outer surface of the hair dryer shell and the outer tube 72 and the inner tube 73 when taking out the hair dryer shell, the difficulty of taking out the hair dryer shell can be greatly reduced, and the possibility of damage to the hair dryer shell when taking out can be greatly reduced. As the hair dryer shell moves upward, it will push the top cover 5 to move upward along the slide rod 3. When the bottom of the hair dryer shell finally moves to the outer tube 7 When the hair dryer shell is taken out, the top cover 5 loses its supporting force and will be reset under the action of elastic force and contact the base 2 for reset. At this time, the working rod 716 is driven by the hydraulic system to move down and reset. At this time, the top of the outer tube 72 and the inner tube 73 have been sealed by the top cover 5. When the working rod 716 moves down and resets, it will pull the fitting ring 719 down, that is, the cavity between the outer tube 72 and the inner tube 73 is in a negative pressure state, so that the molten raw material is drawn from the temporary storage tank 81 through the introduction groove 82 and enters the cavity between the outer tube 72 and the inner tube 73, and the injection molding is automatically completed, which greatly improves the degree of automation and the convenience of use. At the same time, the injection molding in the form of negative pressure can greatly reduce the pressure between the outer tube 72 and the inner tube When the hair dryer shell is taken out, the push rod 720 moves upward, which causes the sliding ring 722 to move upward, thereby squeezing the corrugated ring 723. When the corrugated ring 723 can no longer be squeezed, it drives the sealing ring 718 and the fitting ring 719 to move upward to eject the hair dryer shell. When the corrugated ring 723 is squeezed, the internal air pressure will increase and the air pressure will be transmitted to the isolation ring 84. The telescopic plate 86 connected to the isolation ring 84 causes the telescopic plate 86 to expand outward, thereby causing the telescopic plate 86 to gradually seal the introduction groove 82, thereby realizing automatic closure of the introduction groove 82 when the hair dryer shell is taken out, thereby avoiding the problem of leakage of molten raw materials when the hair dryer shell is taken out.When the push rod 720 is reset, it will pull the corrugated ring 723 to expand, thereby causing the telescopic plate 86 to begin to contract, so that the introduction groove 82 is reconnected, and then the automatic injection molding is completed, greatly improving the stability during injection molding.

[0044] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions. The sentence "includes an element defined by... does not exclude the existence of other identical elements in the process, method, article or device including the element".

Claims

1. A shell forming mold for hair dryer production that is easy to demould, comprising a bottom plate (1), characterized in that: The upper surface of the bottom plate (1) is fixedly connected to a base (2), the upper surfaces of both sides of the bottom plate (1) are symmetrically fixedly connected to sliding rods (3), the outer surface of the sliding rod (3) is slidably sleeved with a slide plate (4), the inner surface of the slide plate (4) is fixedly connected to a top cover (5), wherein the top cover (5) is arranged directly above the base (2), and a feed hole (6) is opened on the upper surface of the top cover (5), and further comprises: A demoulding mechanism (7), wherein the demoulding mechanism (7) is fixedly mounted inside the base (2), wherein the demoulding mechanism (7) moves up and down along the inner surface of the base (2); A feeding mechanism (8), wherein the feeding mechanism (8) is fixedly mounted inside the top cover (5), wherein the feeding mechanism (8) works in conjunction with the demoulding mechanism (7); The demoulding mechanism (7) comprises a mounting groove (71) which is arranged in a cylindrical shape and is opened through the middle upper surface of the base (2). An outer tube (72) is arranged inside the mounting groove (71). The upper and lower surfaces of the outer tube (72) are respectively in the same horizontal plane as the upper and lower surfaces of the base (2), wherein the central axis of the outer tube (72) is arranged to be consistent with the central axis of the mounting groove (71). An inner tube (73) is arranged inside the outer tube (72). The diameter of the inner tube (73) is smaller than that of the outer tube (72), wherein the upper and lower surfaces of the inner tube (73) are also respectively in the same horizontal plane as the upper and lower surfaces of the base (2), and the central axis of the inner tube (73) is arranged to be consistent with the central axis of the outer tube (72).

2. The shell forming mold for hair dryer production that is easy to demould according to claim 1, characterized in that: The side surface of the outer tube (72) is provided with an outer slide groove (74) running through it, and six outer slide grooves (74) are arranged at fixed intervals around the central axis of the outer tube (72). The inner surface of the base (2) is provided with a limiting groove (75), and six limiting grooves (75) are also arranged, wherein six limiting grooves (75) are directly opposite to the six outer slide grooves (74). The inner part of the outer slide groove (74) is slidably inlaid with an outer slide bar (76), and the cross-section of the outer slide bar (76) is arranged to be a boss shape. The outer end of the outer slide bar (76) is slidably connected in the limiting groove (75), and the inner surface of the outer slide bar (76) and the outer tube (72) form the same plane.

3. The shell forming mold for hair dryer production that is easy to demould according to claim 2, characterized in that: The side surface of the inner tube (73) is penetrated with an inner slide groove (77), and six inner slide grooves (77) are arranged at fixed intervals around the central axis of the inner tube (73). The inner slide groove (77) is slidably inlaid with an inner slide bar (78), and the outer surface of the inner slide bar (78) forms the same plane as the outer surface of the inner tube (73). The side surface of the outer slide bar (76) is penetrated with an outer inclined groove (79), and the side surface of the inner slide bar (78) is penetrated with an inner inclined groove (710), wherein the outer inclined groove (79) and the inner inclined groove (710) are arranged in an inclined state.

4. The shell forming mold for hair dryer production that is easy to demould according to claim 3, characterized in that: The outer inclined groove (79) is slidably connected to an outer ring (711) inside, and the inner inclined groove (710) is slidably connected to an inner ring (712) inside. The bottom surface of the outer ring (711) is fixedly connected to an outer connecting rod (713), and three outer connecting rods (713) are arranged at fixed intervals around the central axis of the outer ring (711). The bottom surface of the inner ring (712) is fixedly connected to an inner connecting rod (714), and three inner connecting rods (714) are arranged at fixed intervals around the central axis of the inner ring (712), wherein a chassis (715) is fixedly connected to the bottom of the outer connecting rod (713) and the inner connecting rod (714).

5. The shell forming mold for hair dryer production that is easy to demould according to claim 4, characterized in that: The two side surfaces of the chassis (715) are symmetrically fixedly connected with working rods (716) through connecting rods. The end of the working rod (716) away from the chassis (715) is respectively slidably connected to the upper surface of the bottom plate (1) and the slide plate (4). The bottom surface of the slide plate (4) is elastically connected to the upper surface of the bottom plate (1) through a spring. The upper surface of the bottom plate (1) is provided with a receiving groove (717).

6. The shell forming mold for hair dryer production that is easy to demould according to claim 5, characterized in that: A sealing ring (718) is slidably embedded in the cavity between the outer tube (72) and the inner tube (73); a fitting ring (719) is fitted on the upper surface of the sealing ring (718); a push rod (720) is fixedly connected to the lower surface of the fitting ring (719); the bottom of the push rod (720) passes through the sealing ring (718) and is fixedly connected to the upper surface of the chassis (715), wherein the push rod (720) and the sealing ring (718) are slidably connected.

7. The shell forming mold for hair dryer production that is easy to demould according to claim 6, characterized in that: The bottom surface of the sealing ring (718) is provided with an extrusion groove (721), and the extrusion groove (721) is arranged in a ring shape, wherein the interior of the extrusion groove (721) is slidably connected with a sliding ring (722), and the sliding ring (722) is fixedly connected to the outer surface of the push rod (720), and the upper surface of the sliding ring (722) is fixedly connected with a corrugated ring (723), and the top of the corrugated ring (723) is fixedly connected to the bottom surface of the sealing ring (718), wherein the corrugated ring (723) is arranged in the extrusion groove (721).

8. The shell forming mold for hair dryer production that is easy to demould according to claim 7, characterized in that: The feeding mechanism (8) comprises a temporary storage groove (81), the temporary storage groove (81) is provided inside the top cover (5), wherein the temporary storage groove (81) is communicated with the feeding hole (6), an introduction groove (82) is provided on the lower surface of the temporary storage groove (81), the introduction groove (82) is arranged in a conical shape, wherein the bottom of the introduction groove (82) is communicated with the cavity between the outer tube (72) and the inner tube (73), and a working cavity (83) is provided inside the top cover (5), and the working cavity (83) is arranged below the temporary storage groove (81).

9. The shell forming mold for hair dryer production that is easy to demould according to claim 8, characterized in that: An isolating ring (84) is fixedly connected to the middle of the working chamber (83), and a limiting rod (85) is fixedly connected to the outer surface of the isolating ring (84), wherein the limiting rods (85) are arranged in parallel in pairs to form a group, and there are three groups of limiting rods (85) in total, and each group of limiting rods (85) is arranged between the introduction grooves (82). A telescopic plate (86) is fixedly arranged through the inner surface of the isolating ring (84), and the outer end of the telescopic plate (86) is slidably connected to the inner surface of the limiting rod (85). A pressure relief groove (87) is arranged through the side wall of the introduction groove (82), and the pressure relief groove (87) is connected to the inner cavity of the limiting rod (85), and the inner cavity of the isolating ring (84) is connected to the internal cavity of the corrugated ring (723).

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