Automobile air conditioner plastic shell de-haaf line injection molding mold

Abstract

The application provides a plastic shell of an automobile air conditioner and removes a half line through injection molding. The shell comprises an upper mold, a lower mold, a core, a die and an inclined pin. The core and the die are fixed in the upper mold. The lower mold and the upper mold form a cavity. A connecting hole is formed in the side wall of the core. The end of the die is tightly connected with the outer wall of the core and blocks the connecting hole. The die is provided with a sliding hole which is connected with the connecting hole. The inclined pin is slidingly connected in the sliding hole. The end of the sliding hole is provided with a connecting inclined surface. A limiting slot is formed in the inner wall of the sliding hole. The length direction of the limiting slot is parallel to the length direction of the sliding hole. The side wall of the inclined pin is fixedly connected with a limiting rod which is slidingly connected in the limiting slot.

Description

TECHNICAL FIELD

[0001] The present application relates to injection mold, especially, it relates to a kind of automobile air conditioner plastic shell removes haudio-videoe line injection molding mold. BACKGROUND

[0002] As Figures 1 to 3 As shown in prior art automobile air conditioner plastic shell 1 (hereinafter referred to as shell 1) injection molding mold, there is a barb 100 on the shell 1. In order to form the barb 100, it is necessary to use mold 6, oblique pin 8. Mold 6 is fixed in upper die 2, and oblique pin 8 is slidably connected in mold 6. Connection inclined surface 17 is formed in the end of mold 6, and oblique pin 8 penetrates into mold 6.

[0003] After the plastic melt is injected into the cavity, the barb 100 is formed between the end of oblique pin 8 and connection inclined surface 17, but at the same time, the plastic melt will generate pressure on oblique pin 8, and the length of oblique pin 8 is relatively long, so that oblique pin 8 will produce a certain offset along mold 6, and after the shell 1 is formed, the connection between oblique pin 8 and mold 6 will produce a more obvious haudio-videoe line, which will cause the problem of low forming quality of shell 1. SUMMARY

[0004] Therefore, the present application aims to provide an automobile air conditioner plastic shell removes haudio-videoe line injection molding mold to improve the forming quality.

[0005] In order to solve the above technical problems, the technical scheme of the present application is as follows: an automobile air conditioner plastic shell removes haudio-videoe line injection molding mold, comprising upper die, lower die, core, mold and oblique pin, the core and the mold are fixed in the upper die, the lower die and the upper die form a cavity, the side wall of the core is provided with a connecting hole, the end of the mold is tightly closed with the outer wall of the core and blocks the connecting hole, the mold is provided with a sliding hole communicating with the connecting hole, the oblique pin is slidably connected in the sliding hole, the end of the sliding hole is provided with a connecting inclined surface, the inner wall of the sliding hole is provided with a limiting slot, the length direction of the limiting slot is parallel to the length direction of the sliding hole, and the side wall of the oblique pin is fixedly connected with a limiting rod slidably connected in the limiting slot.

[0006] The above technical scheme is realized, the upper die and the lower die are tightly closed, then the plastic melt is injected into the cavity, the limiting rod is limited by the inner wall of the limiting slot to limit the relative movement between the oblique pin and the mold, and the haudio-videoe line is not formed on the surface of the shell when the shell is formed, then the oblique pin is moved along the length direction and extracted from the mold, and then the upper die and the lower die are separated, and the shell can be taken out from the cavity.

[0007] As a preferred scheme of the present application, the inclined pin comprises a forming section, a locking sleeve, a first plug, a second plug, a positioning sleeve and a sliding section, the forming section is fixedly connected with the limiting rod, the forming section penetrates into the positioning sleeve, the end of the forming section abuts against the end of the sliding section, the locking sleeve is sleeved on the positioning sleeve and the sliding section, the first plug penetrates through the locking sleeve, the positioning sleeve and the forming section, and the second plug penetrates through the locking sleeve and the sliding section.

[0008] The above technical scheme is implemented as follows: the forming section penetrates into the positioning sleeve, then the end of the forming section abuts against the end of the sliding section, then the locking sleeve is sleeved on the positioning sleeve and the sliding section, finally the first plug penetrates through the locking sleeve, the positioning sleeve and the forming section, and the second plug penetrates through the locking sleeve and the sliding section, thereby completing the fixed connection between the forming section and the sliding section; since the inclined pin is processed in multiple sections, the production difficulty can be greatly reduced, and the processing precision is improved.

[0009] As a preferred scheme of the present application, the end of the sliding section away from the forming section is fixedly connected with an inclined block, the outer wall of the upper die is slidingly connected with a power block, the power block is provided with an inclined groove, the inclined block is slidingly connected in the inclined groove, and the power block is driven by a power cylinder.

[0010] The above technical scheme is implemented as follows: the power cylinder is started, the power block is translated, the inclined block is moved along the length direction of the inclined groove through the conduction of the inclined groove, the inclined block drives the sliding section to move, and the sliding section is stably moved along the length direction of the sliding section, in the process of injection molding, the power cylinder is started to resist the pressure of the plastic melt on the inclined pin, so that the inclined pin is prevented from retreating.

[0011] As a preferred scheme of the present application, the forming section is provided with an installation cavity, the end of the forming section is provided with a forming hole in communication with the installation cavity, the opening of the forming hole faces the connecting slope, a convex block is slidingly connected in the forming hole, the convex block is provided with a forming groove, and the forming section is moved towards the type cavity and makes the convex block extend out of the forming hole through a conduction assembly.

[0012] The above technical scheme is implemented as follows: the forming section is moved towards the type cavity and makes the convex block extend out of the forming hole through the conduction assembly, in the process of forming the shell, the inverted hook is formed between the core, the die and the inclined pin, the convex block is located in the type cavity, a pit is formed on the side of the inverted hook corresponding to the convex block, meanwhile, a convex strip is formed on the inverted hook, the convex strip has a certain anti-skid effect, so as to improve the connection stability between the matched part and the shell; when the shell is connected with the matched part, the convex on the matched part can be embedded into the pit, so that the connection between the shell and the matched part is more stable.

[0013] As a preferred scheme of the present application, the transmission assembly comprises a first gear rack, a second gear rack, a gear bar, a transmission gear, and a transmission screw rod, the first gear rack is fixed on the inner wall of the mold core, the second gear rack is slidingly connected in the installation cavity, the gear bar is rotationally connected in the installation cavity and one end of the gear bar is engaged with the first gear rack, the other end of the gear bar is engaged with the second gear rack, the transmission gear is engaged with the second gear rack and rotationally connected in the installation cavity, and the transmission screw rod is fixed on the transmission gear and threadedly connected with the protrusion.

[0014] With the above technical scheme, when the forming section moves towards the cavity, the gear bar moves along the length direction of the first gear rack to rotate the gear bar, the second gear rack is driven to move by the gear bar, the transmission gear is driven to rotate by the second gear rack, the connecting screw rod is driven to rotate by the transmission gear, and the protrusion is driven to move into the cavity along the forming hole through the transmission of the thread. During the injection molding process, the plastic melt can generate pressure on the protrusion, and the power support of the connecting screw rod, the connecting gear rack and the power cylinder can effectively resist the pressure, so that the protrusion can remain stable during the injection molding process. Similarly, when the forming section moves away from the cavity, the protrusion can be withdrawn into the forming hole.

[0015] As a preferred scheme of the present application, the protrusion is provided with a stripping slope at one end of the connecting slope.

[0016] With the above technical scheme, the stripping slope on the protrusion forms a positioning slope on the hook, and the positioning slope can effectively improve the connection stability between the shell and the matching part. In addition, during the movement of the forming section away from the cavity, the protrusion can move along the positioning slope during the movement of the protrusion towards the forming hole, so that the protrusion can be demolded more smoothly.

[0017] As a preferred scheme of the present application, the inner wall of the mold core is provided with a placement cavity, the connecting slope is provided with a square groove in communication with the placement cavity, a sliding rod is slidingly connected in the placement cavity, an end of the sliding rod is fixedly connected with a square block slidingly connected in the square groove, the forming section moves towards the cavity and makes the square block extend out of the square groove through the connecting assembly, and the square block is provided with a friction groove.

[0018] The square block is extended from the square groove through the connecting assembly when the forming section is moved towards the cavity, a square groove is formed on the guide slope of the hook during the hook forming, and a friction protrusion is obtained in the square groove, the square groove corresponds to the square block, and the friction protrusion corresponds to the friction groove, therefore, when the shell and the matched part need to be separated, the hook can be moved by pushing with fingers through the friction protrusion, and meanwhile, when the matched part is connected with the shell, the square groove reduces the contact area with the matched connection and the friction, so that the matched part is more labor-saving when being connected to the shell.

[0019] As a preferred scheme of the present application, the connecting assembly comprises a sliding block, a first slope, a second slope and a supporting spring, the sliding block is slidingly connected in the placing cavity and fixedly connected with the forming section, the first slope is arranged at the end of the sliding block, the second slope is arranged at the end of the sliding rod and used for abutting against the first slope, one end of the supporting spring is connected with the sliding rod, and the other end of the supporting spring is connected with the inner wall of the placing cavity.

[0020] When the forming section is moved towards the cavity, the sliding block moves synchronously with the forming section, the first slope and the second slope abut against each other to generate a conduction effect, the sliding rod moves along the length direction of the sliding rod, the square block moves along the inner wall of the square groove and penetrates into the cavity, when the forming section is moved away from the cavity, the square block is separated from the hook to realize demolding through the elastic force of the supporting spring, and the power cylinder transmits the force from the inclined pin and the sliding block to the sliding rod, so that the square block can resist the pressure generated by the plastic melt on the square block, and the square block can be kept stable during the injection molding.

[0021] As a preferred scheme of the present application, the outer wall of the upper die is fixedly connected with a limiting block, and the power block is slidingly connected in the limiting block.

[0022] The above technical scheme is realized, and the power block moves more stably along the limiting block when the power cylinder is started.

[0023] In summary, the present application has the following beneficial effects:

[0024] 1. The inclined pin is limited from moving by abutting against the inner wall of the limiting rod and the limiting groove, so that the Haefliger line is not generated on the surface of the formed automobile air conditioner plastic shell;

[0025] 2. During the movement of the inclined pin towards the cavity, the convex block and the square block move into the cavity, when the inclined pin moves away from the cavity, the convex block moves into the inclined pin and the square block moves into the core, so that the demolding is quickly realized;

[0026] 3. The convex block forms a positioning slope on the inverted hook, so that the connection between the shell and the matching part can be more stable and compact;

[0027] 4. The square block forms a square groove on the guide slope of the inverted hook, and a friction protrusion is formed in the square groove, which facilitates the connection between the matching part and the inverted hook, and facilitates the pushing of the inverted hook with fingers to realize the disengagement of the matching part from the inverted hook;

[0028] 5. Since the square block and the convex block are demolded at the same time, the force on the inverted hook is more uniform, the local stress concentration is reduced, the risk of deformation is reduced, and the size accuracy and shape of the inverted hook are ensured. BRIEF DESCRIPTION OF DRAWINGS

[0029] Figure 1 It is a schematic diagram of the structure of the existing plastic shell of the automobile air conditioner;

[0030] Figure 2 It is a schematic diagram of the existing inclined pin and mold core connection structure;

[0031] Figure 3 It is a schematic diagram of the existing inclined pin structure;

[0032] Figure 4 It is a schematic diagram of the external structure of the present application;

[0033] Figure 5 It is a schematic diagram of the connection structure between the lower mold and the shell;

[0034] Figure 6 It is a schematic diagram of the structure of the inverted hook;

[0035] Figure 7 It is a schematic diagram of the inclined pin and mold core connection structure of the present application;

[0036] Figure 8 It is a schematic diagram of the inclined pin structure of the present application;

[0037] Figure 9 It is a schematic diagram of the structure of the inclined block;

[0038] Figure 10 It is a schematic diagram of the structure of the mold core of the present application;

[0039] Figure 11 It is a schematic diagram of the structure of the sliding hole in the mold core;

[0040] Figure 12 It is a schematic diagram of the connection structure of the mold core and the inclined pin in the present application;

[0041] Figure 13 It is Figure 12 the enlarged view of A;

[0042] Figure 14A structure schematic diagram of the installation cavity;

[0043] Figure 15 A structure schematic diagram of the automobile air conditioner plastic shell of the present application;

[0044] Figure 16 A structure schematic diagram of the automobile air conditioner plastic shell of the present application; Figure 15 A structure schematic diagram of the automobile air conditioner plastic shell of the present application;

[0045] The figure marks: 1, the shell; 2, the upper mould; 3, the lower mould; 4, the core; 5, the connecting hole; 6, the die; 7, the sliding hole; 8, the inclined pin; 9, the forming section; 10, the locking sleeve; 11, the first bolt; 12, the second bolt; 13, the positioning sleeve; 14, the sliding section; 15, the limiting rod; 16, the limiting groove; 17, the connecting inclined surface; 18, the inclined block; 19, the power block; 20, the inclined groove; 21, the power cylinder; 22, the limiting block; 23, the guide groove; 24, the installation cavity; 25, the forming hole; 26, the protruding block; 27, the forming groove; 28, the protruding strip; 29, the transmission assembly; 30, the first rack; 31, the second rack; 32, the rack; 33, the transmission gear; 34, the transmission screw; 35, the stripping inclined surface; 36, the positioning inclined surface; 37, the placing cavity; 38, the square groove; 39, the square block; 40, the friction groove; 41, the sliding rod; 42, the connecting assembly; 43, the sliding block; 44, the first inclined surface; 45, the second inclined surface; 46, the supporting spring; 47, the square groove; 48, the friction protrusion; 100, the inverted hook. DETAILED DESCRIPTION

[0046] The specific embodiments of the present application are further described in detail below with reference to the accompanying drawings, so that the technical scheme of the present application is easier to understand and master.

[0047] An automobile air conditioner plastic shell 1 Haaf line injection molding mold, including upper mould 2, lower mould 3, core 4, die 6 and inclined pin 8.Core 4 and die 6 are all fixed in upper mould 2, and the cavity for forming automobile air conditioner plastic shell 1 is formed between lower mould 3 and upper mould 2.A connecting hole 5 is opened on the side wall of core 4, and the end of die 6 is tightly closed to the outer wall of core 4 and blocks the connecting hole 5.A sliding hole 7 is opened in die 6, and inclined pin 8 is slidingly connected in sliding hole 7.

[0048] Inclined pin 8 includes forming section 9, locking sleeve 10, first bolt 11, second bolt 12, positioning sleeve 13 and sliding section 14.Forming section 9 penetrates into positioning sleeve 13, and the end of forming section 9 is tightly closed to the end of sliding section 14.Locking sleeve 10 is sleeved on positioning sleeve 13 and sliding section 14.First bolt 11 penetrates through locking sleeve 10, positioning sleeve 13 and forming section 9, and second bolt 12 penetrates through locking sleeve 10 and sliding section 14, so as to realize the fixed connection between forming section 9 and sliding section 14.

[0049] A limiting rod 15 is integrally connected to the side wall of the forming section 9, and the length direction of the limiting rod 15 is parallel to the length direction of the forming section 9. The cross section of the combination of the forming section 9 and the limiting rod 15 is cross-shaped.

[0050] A limiting groove 16 is formed on the inner wall of the sliding hole 7, and the length direction of the limiting groove 16 is parallel to the length direction of the sliding hole 7. The forming section 9 is slidingly connected to the sliding hole 7, and the limiting rod 15 is slidingly connected to the limiting groove 16.

[0051] A connecting inclined surface 17 is formed at the end of the sliding hole 7.

[0052] After the upper die 2 and the lower die 3 are matched, the plastic melt is injected into the cavity, the shell 1 is formed in the cavity, and the forming section 9 is subjected to the pressure of the plastic melt, and the inner wall of the limiting groove 16 and the limiting rod 15 are in contact to resist the pressure, so that the forming section 9 remains stable during the formation of the shell 1. After the shell 1 is formed, no parting line is formed between the forming section 9 and the core 6.

[0053] An inclined block 18 is fixedly connected to the end of the sliding section 14 away from the forming section 9, and the cross section of the inclined block 18 is T-shaped. A power block 19 is slidingly connected to the outer wall of the upper die 2, and an inclined groove 20 is formed on the power block 19. The inclined block 18 is slidingly connected to the inclined groove 20, and the power block 19 is driven by a power cylinder 21. The power cylinder 21 is a gas cylinder and is fixed to the outer wall of the upper die 2.

[0054] A limiting block 22 is fixedly connected to the outer wall of the upper die 2, and a guide groove 23 with a T-shaped cross section is formed on the limiting block 22. The power block 19 is slidingly connected to the guide groove 23.

[0055] When the power cylinder 21 is started, the power block 19 moves along the length direction of the guide groove 23, and the inclined block 18 is driven to move the sliding section 14 through the conduction of the inclined groove 20. At the same time, the sliding section 14 stably moves the forming section 9. The forming section 9 and the core 6 are both fixed by left and right parts.

[0056] An installation cavity 24 is formed in the forming section 9, and a forming hole 25 is formed at the end of the forming section 9 and communicates with the installation cavity 24. The forming hole 25 is perpendicular to the surface of the forming section 9, and the opening of the forming hole 25 faces the connecting inclined surface 17.

[0057] The protrusion 26 is slidably connected in the forming hole 25, and a forming groove 27 is formed in the protrusion 26, which is in a strip shape. The forming section 9 moves towards the direction of the cavity, and the protrusion 26 is extended out of the forming hole 25 through the transmission assembly 29, so that the protrusion 26 is located in the cavity. When the shell 1 is formed, the reverse hook 100 is formed between the core 4, the mold core 6 and the inclined pin 8, and the forming groove 27 is located on the lower surface of the reverse hook 100, so that the protrusion 28 is formed on the reverse hook 100 when the reverse hook 100 is formed. When the shell 1 is connected with the matched part, the protrusion 28 is in contact with the matched part, so as to improve the connection stability between the shell 1 and the matched part.

[0058] The transmission assembly 29 comprises a first rack 30, a second rack 31, a toothed rod 32, a transmission gear 33 and a transmission screw 34. The first rack 30 is fixed on the inner wall of the mold core 6, and the length direction of the first rack 30 is parallel to the length direction of the sliding hole 7. The second rack 31 is slidably connected in the mounting cavity 24, and the length direction of the second rack 31 is parallel to the length direction of the first rack 30.

[0059] The toothed rod 32 is rotatably connected in the mounting cavity 24, and one end of the toothed rod 32 is engaged with the first rack 30. The other end of the toothed rod 32 is engaged with the second rack 31, and the toothed rod 32 is always kept engaged with the first rack 30 and the second rack 31.

[0060] The transmission gear 33 is engaged with the second rack 31, and the transmission gear 33 is rotatably connected in the mounting cavity 24. The transmission gear 33 is always kept engaged with the second rack 31. The transmission screw 34 is fixed on the transmission gear 33 and is threadedly connected with the protrusion 26. The axis of the transmission screw 34 is arranged in line with the axis of the transmission gear 33.

[0061] A stripping slope 35 is formed on one end of the protrusion 26 which is close to the connecting slope 17. The stripping slope 35 forms a positioning slope 36 on the lower surface of the reverse hook 100, so as to improve the connection stability between the reverse hook 100 and the matched part. When the forming section 9 moves away from the cavity, the protrusion 26 can move along the stripping slope 35 without damaging the reverse hook 100.

[0062] When the forming section 9 moves towards the cavity, the toothed rod 32 moves along the length direction of the first rack 30, so that the toothed rod 32 rotates, and the toothed rod 32 drives the second rack 31 to move, so that the second rack 31 drives the transmission gear 33 to rotate, and the transmission gear 33 drives the transmission screw to rotate. Through the transmission effect of the thread, the protrusion 26 penetrates into the cavity along the forming hole 25. Similarly, when the forming section 9 moves away from the cavity, the protrusion 26 can retreat into the forming hole 25.

[0063] The inner wall of the mold core 6 is provided with a placing cavity 37, and the first rack 30 is fixed in the placing cavity 37. The connecting slope 17 is provided with a square groove 38 which communicates with the placing cavity 37. The sliding rod 41 is slidably connected in the placing cavity 37, and the end of the sliding rod 41 is fixedly connected with the square block 39 which is slidably connected in the square groove 38.

[0064] The forming section 9 moves towards the mold cavity, and the square block 39 is extended from the square groove 38 through the connecting assembly 42, so that the square block 39 is located in the mold cavity. The end surface of the square block 39 is provided with a friction groove 40.

[0065] The connecting assembly 42 comprises a sliding block 43, a first slope 44, a second slope 45 and a supporting spring 46. The sliding block 43 is slidably connected in the placing cavity 37 and is fixedly connected with the forming section 9, and the length direction of the sliding block 43 is parallel to the displacement direction of the forming section 9. The first slope 44 is provided on the end of the sliding block 43, the second slope 45 is provided on the end of the sliding rod 41 and is used to abut against the first slope 44, and the second slope 45 always abuts against the first slope 44. One end of the supporting spring 46 is connected with the sliding rod 41, and the other end of the supporting spring 46 is connected with the inner wall of the placing cavity 37.

[0066] The forming section 9 moves towards the mold cavity, and the sliding block 43 moves synchronously with the forming section 9. The first slope 44 and the second slope 45 abut against each other to generate a transmission effect, so that the sliding rod 41 moves along the length direction of the sliding rod 41, and the square block 39 moves along the inner wall of the square groove 38 and penetrates into the mold cavity.

[0067] The square block 39 forms a square groove 47 on the guide slope of the reverse hook 100, and the friction groove 40 forms a friction protrusion 48 on the reverse hook 100, and the friction protrusion 48 is located in the square groove 47. The height of the friction protrusion 48 is less than the depth of the square groove 47.

[0068] When the forming section 9 moves away from the mold cavity, the square block 39 slides into the square groove 38 through the elastic force of the supporting spring 46 to separate from the reverse hook 100 and realize demolding.

[0069] Therefore, when the forming section 9 moves towards the mold cavity, the convex block 26 and the square block 39 are located in the mold cavity; when the forming section 9 moves away from the mold cavity, the convex block 26 and the square block 39 move away from the mold cavity to realize rapid demolding.

[0070] Of course, the above is only a typical example of the present application, and in addition to this, the present application can have other various specific embodiments, and any technical solution formed by equivalent replacement or equivalent transformation falls within the scope of the present application.

Claims

1. A plastic injection molding mold for removing half-line defects in automotive air conditioning housings, comprising an upper mold (2), a lower mold (3), a core (4), a mold core (6), and a slanted pin (8), wherein the core (4) and the mold core (6) are both fixed in the upper mold (2), a cavity is formed between the lower mold (3) and the upper mold (2), a connecting hole (5) is provided on the side wall of the core (4), the end of the mold core (6) abuts against the outer wall of the core (4) and seals the connecting hole (5), the mold core (6) is provided with a sliding hole (7) communicating with the connecting hole (5), the slanted pin (8) is slidably connected in the sliding hole (7), and a connecting inclined surface (17) is provided at the end of the sliding hole (7), characterized in that: The inner wall of the sliding hole (7) is provided with a limiting groove (16), the length direction of the limiting groove (16) is parallel to the length direction of the sliding hole (7), and the side wall of the inclined pin (8) is fixedly connected with a limiting rod (15) which is slidably connected in the limiting groove (16).

2. The injection molding die for removing half-line defects from a plastic housing for an automotive air conditioner according to claim 1, characterized in that: The inclined pin (8) comprises a shaped section (9), a locking sleeve (10), a first plug (11), a second plug (12), a positioning sleeve (13) and a sliding section (14), the shaped section (9) is fixedly connected with the limiting rod (15), the shaped section (9) penetrates into the positioning sleeve (13), the end of the shaped section (9) is abuttingly connected with the end of the sliding section (14), the locking sleeve (10) is sleeved on the positioning sleeve (13) and the sliding section (14), the first plug (11) penetrates through the locking sleeve (10), the positioning sleeve (13) and the shaped section (9), and the second plug (12) penetrates through the locking sleeve (10) and the sliding section (14).

3. The injection molding die for removing half-line defects from a plastic housing for an automotive air conditioner according to claim 2, characterized in that: The end of the sliding section (14) away from the shaped section (9) is fixedly connected with an inclined block (18), the outer wall of the upper die (2) is slidably connected with a power block (19), the power block (19) is provided with an inclined groove (20), the inclined block (18) is slidably connected in the inclined groove (20), and the power block (19) is driven by a power cylinder (21).

4. The injection molding die for removing half-line defects from a plastic housing for an automotive air conditioner according to claim 2, characterized in that: The shaped section (9) is provided with an installation cavity (24), the end of the shaped section (9) is provided with a shaped hole (25) which is in communication with the installation cavity (24), the opening of the shaped hole (25) faces the connecting inclined surface (17), the shaped hole (25) is slidably connected with a protruding block (26), the protruding block (26) is provided with a shaped recess (27), the shaped section (9) moves towards the cavity and makes the protruding block (26) extend out of the shaped hole (25) through a conduction assembly (29).

5. The injection molding die for removing half-line defects from a plastic housing for an automotive air conditioner according to claim 4, characterized in that: The conduction assembly (29) comprises a first gear rack (30), a second gear rack (31), a gear rod (32), a conduction gear (33) and a conduction screw rod (34), the first gear rack (30) is fixed on the inner wall of the die core (6), the second gear rack (31) is slidably connected in the installation cavity (24), the gear rod (32) is rotatably connected in the installation cavity (24) and one end of the gear rod (32) is engaged with the first gear rack (30), the other end of the gear rod (32) is engaged with the second gear rack (31), the conduction gear (33) is engaged with the second gear rack (31) and rotatably connected in the installation cavity (24), and the conduction screw rod (34) is fixed on the conduction gear (33) and is threadedly connected with the protruding block (26).

6. A molding die for removing half-line defects from a plastic housing for an automotive air conditioner, as described in claim 4 or 5, characterized in that: The end of the protruding block (26) facing the connecting inclined surface (17) is provided with a stripping inclined surface (35).

7. A molding die for removing half-line defects from a plastic housing for an automotive air conditioner, as described in claim 2, 4, or 5, characterized in that: The inner wall of the mold core (6) is provided with a placing cavity (37), the connecting slope (17) is provided with a square groove (38) in communication with the placing cavity (37), the placing cavity (37) is slidably connected with a sliding rod (41), the end of the sliding rod (41) is fixedly connected with a square block (39) slidably connected in the square groove (38), the forming section (9) moves towards the direction of the mold cavity and makes the square block (39) extend out of the square groove (38) through the connecting assembly (42), and the square block (39) is provided with a friction groove (40).

8. The mold for injection molding a de-hafer line of a plastic housing of an automobile air conditioner according to claim 7, wherein: The connecting assembly (42) comprises a sliding block (43), a first slope (44), a second slope (45) and a supporting spring (46), the sliding block (43) is slidably connected in the placing cavity (37) and fixedly connected with the forming section (9), the first slope (44) is provided at the end of the sliding block (43), the second slope (45) is provided at the end of the sliding rod (41) and used for abutting against the first slope (44), one end of the supporting spring (46) is connected with the sliding rod (41), and the other end of the supporting spring (46) is connected with the inner wall of the placing cavity (37).

9. The mold for injection molding a plastic shell of an automobile air conditioner according to claim 3, wherein: The outer wall of the upper mold (2) is fixedly connected with a limiting block (22), and the power block (19) is slidably connected in the limiting block (22).

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