Injection molding machine with independent and accurate mold adjusting band-type brake position

Abstract

The utility model discloses an injection molding machine with independent and accurate mold-adjusting band-type brake position, which comprises an upper mold plate, a lower mold plate and a band-type brake column, a mold cylinder component is arranged below the lower mold plate, the upper mold plate is provided with an adjustable band-type brake component matched with the band-type brake column, and the adjustable band-type brake component is provided with a mold cylinder component matched with the band-type brake column. A band-type brake limiting ring and an adjustable opening limiting rod are arranged in the band-type brake assembly, and a mold adjusting cylinder assembly used for adjusting the upper band-type brake position and the lower band-type brake position of the band-type brake machine column is arranged between the mold cylinder assembly and the lower mold plate. According to the injection molding machine, accurate braking and opening can be achieved through position adjustment, braking and opening can achieve the theoretical design position, the service life of the whole machine is prolonged, and collision damage to a clamping nut is avoided; the clamping nut and the band-type brake machine column teeth are meshed and stressed uniformly, the structure is more stable, the band-type brake position is balanced, force deflection does not exist after high pressure is generated when the theoretical band-type brake position is reached, force acting on the upper die plate is stable, the band-type brake precision is improved, deviation exists, and the band-type brake effect is good.

Description

Technical Field

[0001] The utility model relates to the technical field of injection molding machines, in particular to an injection molding machine with independent and precise mold holding brake position adjustment. Background Art

[0002] The existing brake device of the injection molding machine generally realizes the clamping brake operation by cooperating with the clamping nut and the brake column. However, the existing clamping nut is often unable to reach the theoretical brake position when it is clamped with the brake column during the clamping process. Similarly, when in the open position, the left and right positions of the clamping nut are not symmetrical to the theoretical positions. As a result, the clamping force is uneven due to the inaccurate brake position.

[0003] Therefore, in view of the problems existing in the prior art, the structure of the brake assembly is optimized. The optimized brake mechanism can achieve precise braking and reach the theoretically designed brake position. At the same time, the theoretical opening position can be adjusted to meet the braking requirements under different working conditions. The braking effect is good, and there is no cracking or damage to the machine column and the brake assembly. Utility Model Content

[0004] The purpose of the utility model is to solve the problems that the existing brake device cannot reach the theoretical brake position during the clamping process, and the opening position is not symmetrical with the theoretical position when opening, which leads to the problems of low brake position accuracy, easy cracking and damage to the brake device and the machine column, and to provide an injection molding machine with independent and precise mold adjustment brake position, which can adjust the position, realize precise braking and opening, and enable braking and opening to achieve the theoretical design position.

[0005] The technical solution adopted by the utility model to achieve the purpose of the invention is: an injection molding machine with independent and precise mold brake position adjustment, including an upper template, a lower template and a brake column, a mold cylinder assembly is arranged below the lower template, an adjustable brake assembly cooperating with the brake column is arranged on the upper template, a brake limit ring and an adjustable opening limit rod are arranged in the brake assembly, and an adjustable mold cylinder assembly for adjusting the upper and lower brake positions of the brake column is arranged between the mold cylinder assembly and the lower template. The injection molding machine optimizes the brake assembly, arranges a brake limit ring in the brake assembly, and the brake limit ring cooperates with the brake column to limit the brake position, so that the brake assembly can move to the designed theoretical brake position, thereby achieving precise braking, and the brake assembly is arranged in an adjustable structure, and an adjustable opening limit rod is arranged on the brake assembly, and the theoretical opening position of the brake assembly can be adjusted by the adjustable opening limit rod. At the same time, there is an adjusting mold cylinder assembly between the mold cylinder assembly and the lower mold plate, which is used to adjust the upper and lower brake positions of the brake machine column to ensure that the brake position on the brake machine column matches the brake assembly, thereby ensuring the accuracy of the brake, thereby avoiding inaccurate brake position due to misalignment between the brake machine column and the brake assembly, resulting in cracking and damage, effectively extending the service life, and the braking effect is significant.

[0006] Preferably, the brake column is integrally provided with a brake column thread section and a brake column optical axis section, and the inner diameter of the brake limit ring is consistent with the outer diameter of the brake column optical axis section. By setting the inner diameter of the brake limit ring to be the same as the outer diameter of the brake column optical axis section, the brake position is limited after the inner diameter of the brake limit ring on one side fits the brake column during the braking process, thereby prompting the brake assembly on the other side to move to the designed theoretical brake position, thereby achieving precise braking.

[0007] Preferably, the brake assembly comprises a clamping nut, a clamping cylinder assembly and a clamping cylinder fixing assembly arranged in a half-opening manner. The clamping nut is arranged in half and driven by the clamping cylinder assembly to realize the brake holding and opening operations. The clamping cylinder fixing assembly is arranged to facilitate the arrangement and movement of the clamping cylinder assembly, the arrangement of the adjustable opening limit rod, and the adjustment of the adjustment space.

[0008] Preferably, the brake limiting ring and the clamping nut are arranged in a half structure, and the brake limiting ring is arranged at the upper end of the clamping nut and performs the brake holding and opening movement together with the clamping nut. The brake limiting ring is arranged in half at the upper end of the clamping nut and is arranged coaxially with the clamping nut, so as to achieve the limit of the brake position by fitting with the brake machine column.

[0009] Preferably, the clamping cylinder assembly comprises a clamping cylinder sleeve, a clamping cylinder mandrel, a clamping cylinder front cover and a clamping cylinder guide column, wherein the clamping cylinder mandrel passes through the clamping cylinder front cover and is connected to the clamping nut, one end of the clamping cylinder guide column is connected to the clamping nut, and the other end of the clamping cylinder guide column passes through the clamping cylinder front cover and is connected to the clamping cylinder front cover. The clamping cylinder assembly is configured to drive the clamping nut and the brake limit ring thereon to realize brake engagement and opening.

[0010] Preferably, the clamping cylinder fixing assembly comprises a cylinder fixing plate arranged in an overall frame structure, two clamping nut pressing blocks arranged in parallel, and two clamping nut stoppers arranged in parallel. The clamping nut pressing blocks are arranged to limit the axial movement of the clamping nut during its movement, so that it can only move horizontally but not axially, thereby ensuring the accuracy of the brake position. The clamping nut stoppers are arranged to facilitate the arrangement of the adjustable limiting rod and thus realize the adjustment and limiting of the opening position of the clamping nut, so that the opening position can be opened to the theoretical position.

[0011] Preferably, the two clamping nut blocks are arranged on the clamping cylinder fixing plates on both sides of the clamping nut along a direction perpendicular to the clamping nut locking and opening movement direction, an adjustable clamping activity space is arranged between the two clamping nut blocks and the clamping nut, and the adjustable opening limit rod is arranged vertically on the two clamping nut blocks and extends into the clamping activity space. The clamping nut is arranged in half to facilitate locking and opening, and correspondingly, in order to achieve the adjustment and limit of the opening position of the clamping nut, clamping nut blocks are arranged on both sides of the clamping nut perpendicular to the clamping nut locking and opening movement direction trajectory, thereby forming an adjustable clamping activity space, which is convenient for adjusting and limiting the opening position.

[0012] Preferably, the two clamping nut blocks are arranged on the clamping cylinder fixing plates on the other two sides of the clamping nut in a direction parallel to the clamping nut's brake and opening movement direction, and the inner sides of the clamping nut blocks are respectively provided with limiting grooves for limiting the axial movement of the clamping nut. The two clamping nut blocks are arranged to guide the horizontal movement of the clamping nut and limit its axial movement, and the limiting grooves are used to limit its axial movement to ensure the accuracy of the brake position.

[0013] Preferably, the mold adjusting cylinder assembly comprises a mold adjusting cylinder sleeve and a mold adjusting cylinder mandrel, the mold adjusting cylinder assembly is mounted on the lower end surface of the lower mold plate through a mold adjusting cylinder lower cover, and is connected to the mold cylinder assembly through a mold adjusting cylinder mandrel clamp. The mold adjusting cylinder mandrel is provided in the mold adjusting cylinder assembly, and the mold adjusting cylinder mandrel moves up and down to drive the mold cylinder assembly to move up and down through the up and down movement of the mold adjusting cylinder mandrel, thereby realizing the up and down adjustment of the brake position.

[0014] Preferably, the mold adjusting cylinder assembly drives the mold cylinder assembly to move up and down through the mold adjusting cylinder core shaft, thereby pulling the brake machine column to move up and down to adjust the brake position.

[0015] The beneficial effects of the utility model are as follows: the injection molding machine with independent and precise mold brake position adjustment can perform position adjustment, realize precise brake and opening, make brake and opening realize theoretical design position, improve the service life of the whole machine structure, the brake limit ring touches the brake machine column at the brake closing contact position, avoids the damage of the clamping nut collision; the clamping nut and the brake machine column teeth mesh with uniform force, there is no uneven force, the whole machine structure is more stable, the brake position is balanced, there is no force swing after reaching the theoretical brake position and high pressure, the force acting on the upper template is stable, the brake accuracy is improved, and when reaching the theoretical brake position, the position of each opening and closing is accurate without deviation, the brake effect is good, and the injection molded product quality is high. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 The utility model is a structural schematic diagram of an injection molding machine with independent and precise mold holding brake position adjustment.

[0017] FIG. 2 is a cross-sectional view of the injection molding machine with independent and precise mold brake position adjustment according to the present invention.

[0018] FIG. 3 is a schematic diagram of the structure of the brake assembly in the present invention.

[0019] FIG. 4 is a cross-sectional view of the brake assembly of the present invention.

[0020] Figure 5 It is a top view of the brake assembly in the utility model.

[0021] Figure 6 It is a structural schematic diagram of the middle mold cylinder assembly of the utility model.

[0022] Figure 7 It is a structural schematic diagram of the mold adjusting cylinder assembly in the utility model.

[0023] Figure 8 It is a structural schematic diagram of the fast cylinder assembly in the utility model.

[0024] Fig. 9 It is a structural schematic diagram of the injection molding machine with independent and precise mold brake position adjustment in Example 2.

[0025] In the figure: 1, template assembly, 11, lower template, 12, upper template, 13, mold clamping guide column bracket, 14, guide column, 15, guide column locking nut;

[0026] 2. Brake column, 21. Brake column nut, 22. Brake column threaded section, 23. Brake column optical axis section;

[0027] 3. Brake assembly, 31. Brake limiting ring, 31-1. Left half limiting ring, 31-2. Right half limiting ring, 32. Clamping nut, 32-1. Left half clamping nut, 32-2. Right half clamping nut, 33. Clamping cylinder assembly, 33-1. Clamping cylinder sleeve, 33-2. Clamping cylinder mandrel, 33-3. Clamping cylinder front cover, 33-4. Clamping cylinder guide column, 33-5. Mandrel clamping ring, 34. Adjustable opening limiting rod, 35. Clamping cylinder fixing assembly, 35-1. Clamping cylinder fixing plate, 35-2. Clamping nut pressure block, 35-3. Clamping nut stopper, 35-4. Clamping activity space, 35-5. Limiting groove;

[0028] 4. Cylinder assembly, 41. Cylinder sleeve, 42. Cylinder mandrel, 43. Brake column connecting hole;

[0029] 5. mold adjusting cylinder assembly, 51. mold adjusting cylinder lower cover, 52. mold adjusting cylinder sleeve, 53. mold adjusting cylinder upper cover, 54. mold adjusting cylinder mandrel, 55. mold adjusting cylinder clamping ring;

[0030] 6. Quick cylinder assembly, 61. Quick cylinder sleeve, 62. Quick cylinder flange, 63. Quick cylinder lower cover, 64. Quick cylinder mandrel, 65. Quick cylinder mandrel snap ring;

[0031] 7. Injection components. DETAILED DESCRIPTION

[0032] The technical solution of the utility model is further described in detail below through specific embodiments and in conjunction with the accompanying drawings.

[0033] Embodiment 1:

[0034] exist Figure 1 , Figure 2 In the illustrated embodiment, an injection molding machine with independent and precise adjustment of mold brake position includes an upper mold plate 12, a lower mold plate 11 and a brake column 2, a mold cylinder assembly 4 is arranged below the lower mold plate 11, an adjustable brake assembly 3 cooperating with the brake column 2 is arranged on the upper mold plate 12, a brake limit ring 31 and an adjustable opening limit rod 34 are arranged in the brake assembly 3, and an adjusting mold cylinder assembly 5 for adjusting the upper and lower brake positions of the brake column 2 is arranged between the mold cylinder assembly 4 and the lower mold plate 11.

[0035] It also includes a mold closing guide column bracket 13. The upper template 12, the lower template 11 and the mold closing guide column bracket 13 form a template assembly 1 of the whole machine. The lower template 11 is provided with a plurality of guide columns 14 connected by guide column locking nuts 15. The mold closing guide column bracket 13 is fixedly connected to the upper end of the guide column 14 by the guide column locking nuts 15 provided at the upper end of the guide column 14. The upper template 12 is provided on the guide column 14 and can move up and down along the guide column 14. The guide column 14 passes through the upper template 12 to guide the upper template 12.

[0036] The lower end of the brake column 2 is fixed on the mold cylinder assembly 4 through the brake column nut 21. The brake column 2 passes through the upper mold plate 12 and cooperates with the brake assembly 3 for high pressure. At the same time, the upper end of the brake column 2 passes through the mold guide column bracket 13 and is connected to the mold clamping machine guide column bracket 13, which has higher stability.

[0037] The brake column 2 is arranged parallel to the guide column 14 and is arranged on the inner side of the guide column 14 in a one-to-one correspondence with the guide column 14. The brake column 2 is provided with a brake column threaded section 22 for matching with the brake assembly 3, and the upper and lower parts of the brake column threaded section 22 are the brake column optical axis sections 23. The brake column optical axis section 23 above the brake column threaded section is used to cooperate with the brake assembly to achieve precise braking.

[0038] like Figure 6 As shown, the mold cylinder assembly 4 is arranged below the lower mold plate 11, and the mold cylinder assembly 4 includes a mold cylinder sleeve 41 and a mold cylinder core shaft 42. The mold cylinder sleeve 41 is provided with four brake column connecting holes 43. The lower end of the brake column 2 passes through the lower mold plate 11 and the brake column connecting holes 43 on the mold cylinder sleeve 41 and is fixedly connected to the mold cylinder sleeve 41 through the brake column nut 21.

[0039] The mold cylinder assembly 4 acts on the injection molding machine to generate high pressure, and the oil inlet pushes the mold cylinder core shaft 42 to move upward, and the mold cylinder sleeve 41 is connected to the brake machine column 2, pulling the upper mold plate 12 to move downward, thereby achieving a high pressure effect.

[0040] like Figure 3 , Figure 4 , Figure 5 As shown, the brake assembly 3 includes a brake limiting ring 31 , a clamping nut 32 arranged in a half-structure open-closed manner, a clamping cylinder assembly 33 , an adjustable opening limiting rod 34 and a clamping cylinder fixing assembly 35 .

[0041] The clamping cylinder assembly 33 is horizontally arranged and connected to one side of the clamping nut 32 along the radial direction of the clamping nut 32 , so as to realize the clamping and loosening operations of the clamping nut 32 .

[0042] The brake limiting ring 31 and the clamping nut 32 are correspondingly arranged in a half structure. The brake limiting ring 31 is arranged on the upper end of the clamping nut 32 and performs the brake holding and opening movement together with the clamping nut 32.

[0043] The inner diameter of the brake limit ring 31 is a smooth inner diameter without threads. The brake limit ring 31 is installed on the upper end of the clamping nut 32 and the inner diameter of the limit ring 32 is the same as the outer diameter of the brake column optical axis section 23. Therefore, during the braking process, when the inner diameter of the brake limit ring 31 matches the brake column optical axis section 23, the clamping nut 32 is restricted from continuing to move toward the brake column threaded section 22, thereby achieving the two halves of the clamping nut 32 set in the semi-open structure to be in the same theoretical brake position during the braking process without brake errors, thereby avoiding the risk of the brake column 2 or the clamping nut 32 being broken and damaged during the braking process.

[0044] The clamp cylinder fixing assembly 35 comprises a cylinder fixing plate 35 - 1 which is arranged in an overall frame structure, two clamp nut pressing blocks 35 - 2 arranged in parallel, and two clamp nut stoppers 35 - 3 arranged in parallel.

[0045] The two clamping nut blocks 35-3 are arranged on the clamping cylinder fixing plate 35-1 on both sides of the clamping nut in a direction perpendicular to the clamping and opening movement direction of the clamping nut. An adjustable clamping activity space 35-4 is arranged between the two clamping nut blocks 35-3 and the clamping nut. The adjustable opening limit rod 34 is vertically arranged on the two clamping nut blocks 35-3 and extends to the inside of the clamping activity space 35-4.

[0046] The two clamping nut pressing blocks 35-2 are arranged on the clamping cylinder fixing plates 35-1 on the other two sides of the clamping nut in parallel with the clamping and opening movement directions of the clamping nut. The inner sides of the clamping nut pressing blocks 35-2 are respectively provided with limiting grooves 35-5 for limiting the axial movement of the clamping nut 32.

[0047] like Figure 7 As shown, the mold adjusting cylinder assembly 5 includes a mold adjusting cylinder lower cover 51 , a mold adjusting cylinder sleeve 52 , a mold adjusting cylinder upper cover 53 , a mold adjusting cylinder core shaft 54 ​​and a mold adjusting cylinder retaining ring 55 .

[0048] The mold adjusting cylinder assembly 5 is installed on the lower end surface of the lower mold plate 11 through the mold adjusting cylinder lower cover 51, and is connected to the mold cylinder sleeve 41 through the mold adjusting cylinder mandrel clamping ring 55. The mold adjusting cylinder assembly 5 acts on the adjustment of the upper and lower holding positions of the brake column 2. The brake column 2 and the clamping nut 32 cooperate to hold the required position, but due to the different installation and mold heights, the mold adjusting cylinder assembly 5 needs to adjust the holding position. The mold adjusting cylinder assembly 5 drives the mold cylinder sleeve 41 to move up and down through the mold adjusting cylinder mandrel 54 to pull the brake column 2 up and down to adjust the holding position.

[0049] like Figure 8 As shown, the quick cylinder assembly 6 includes a quick cylinder sleeve 61 , a quick cylinder flange 62 , a quick cylinder lower cover 63 , a quick cylinder core shaft 64 , and a quick cylinder core shaft retaining ring 65 .

[0050] The quick cylinder assembly 6 is installed on the mold closing guide column bracket 13 through the quick cylinder lower cover 63, and is connected to the upper mold plate 12 through the quick cylinder core shaft clamp ring 65. The quick cylinder assembly 5 acts on the up and down movement of the upper mold plate 12 to play the role of opening and closing the mold, and the up and down movement of the quick cylinder core shaft 64 drives the upper mold plate 12 to move up and down.

[0051] The fast cylinder assembly 6 is provided with two groups on the left and two groups on the right.

[0052] Embodiment 2:

[0053] exist Fig. 9 In the illustrated embodiment, an injection molding machine with independent and precise mold brake position adjustment includes a template assembly 1, a brake machine column 2, a brake assembly 3, a mold cylinder assembly 4, a mold adjustment cylinder assembly 5, a fast cylinder assembly 6 and an injection assembly 7.

[0054] The template assembly 1 includes a lower template 11, an upper template 12 and a mold guide column bracket 13. The lower template 11 is provided with a plurality of guide columns 14 connected through guide column locking nuts 15. The mold guide column bracket 13 is fixedly connected to the upper end of the guide column 14 through a guide column locking nut 15 arranged at the upper end of the guide column 14. The upper template 12 is arranged on the guide column 14 and can move up and down along the guide column 14. The guide column 14 passes through the upper template 12 to guide the upper template 12.

[0055] The lower end of the brake column 2 is fixed on the mold cylinder assembly 4 through the brake column nut 21. The brake column 2 passes through the upper mold plate 12 and cooperates with the brake assembly 3 for high pressure. At the same time, the upper end of the brake column 2 passes through the mold guide column bracket 13 and is connected to the mold clamping machine guide column bracket 13, which has higher stability.

[0056] The brake column 2 is arranged parallel to the guide column 14 and is arranged on the inner side of the guide column 14 in a one-to-one correspondence with the guide column 14. The brake column 2 is provided with a brake column threaded section 22 for matching with the brake assembly 3, and the upper and lower parts of the brake column threaded section 22 are the brake column optical axis sections 23. The brake column optical axis section 23 above the brake column threaded section is used to cooperate with the brake assembly to achieve precise braking.

[0057] The mold cylinder assembly 4 is arranged below the lower mold plate 11, and the mold cylinder assembly 4 includes a mold cylinder sleeve 41 and a mold cylinder core shaft 42. The mold cylinder sleeve 41 is provided with four brake column connecting holes 43. The lower end of the brake column 2 passes through the lower mold plate 11 and the brake column connecting holes 43 on the mold cylinder sleeve 41 and is fixedly connected to the mold cylinder sleeve 41 through the brake column nut 21.

[0058] The mold cylinder assembly 4 acts on the injection molding machine to generate high pressure, and the oil inlet pushes the mold cylinder core shaft 42 to move upward, and the mold cylinder sleeve 41 is connected to the brake machine column 2, pulling the upper mold plate 12 to move downward, thereby achieving a high pressure effect.

[0059] The brake assembly 3 comprises a brake limiting ring 31 , a clamping nut 32 , a clamping cylinder assembly 33 , an adjustable opening limiting rod 34 and a clamping cylinder fixing assembly 35 .

[0060] The clamping nut 32 includes a left half clamping nut 32 - 1 and a right half clamping nut 32 - 2 , and the corresponding brake limiting ring 31 includes a left half brake limiting ring 31 - 1 and a right half brake limiting ring 31 - 2 .

[0061] The clamping cylinder assembly 33 is horizontally arranged and connected to one side of the clamping nut 32 along the radial direction of the clamping nut 32 , so as to realize the clamping and loosening operations of the clamping nut 32 .

[0062] The inner diameter of the brake limit ring 31 is a smooth inner diameter without threads. The brake limit ring 31 is installed on the upper end of the clamping nut 32 and the inner diameter of the limit ring 32 is the same as the outer diameter of the brake column optical axis section 23. Therefore, during the braking process, when the inner diameter of the brake limit ring 31 matches the brake column optical axis section 23, the clamping nut 32 is restricted from continuing to move toward the brake column threaded section 22, so that the left half clamping nut 32-1 and the right half clamping nut 32-2 are in the same theoretical brake position during the braking process, and no brake error occurs, thereby avoiding the risk of the brake column 2 or the clamping nut 32 being broken and damaged during the braking process.

[0063] The clamping cylinder assembly 33 includes a clamping cylinder sleeve 33-1, a clamping cylinder core shaft 33-2, a clamping cylinder front cover 33-3 and a clamping cylinder guide column 33-4. The clamping cylinder front cover 33-3 is arranged at the front end of the clamping cylinder sleeve 33-1 and is arranged toward the clamping nut 32. The clamping cylinder core shaft 33-2 passes through the clamping cylinder front cover 33-3 and is connected to the left half clamping nut 32-1 or the right half clamping nut 32-2 in the clamping nut 32. The clamping cylinder guide column 33-4 is arranged parallel to the clamping cylinder core shaft 33-2. One end of the clamping cylinder guide column 33-4 passes through the right half clamping nut 33-2 and is connected to the left half clamping nut 32-1. The other end of the clamping cylinder guide column 33-4 passes through the clamping cylinder front cover 33-3 and is connected to the clamping cylinder front cover 33-3 to achieve a guiding effect.

[0064] The clamping cylinder fixing assembly 35 comprises a clamping cylinder fixing plate 35-1, two parallel clamping nut pressing blocks 35-2 and two parallel clamping nut stoppers 35-3. The two clamping nut pressing blocks 35-2 and the two clamping nut stoppers 35-3 are enclosed to form a frame structure. The two clamping nut stoppers 35-3 are respectively arranged on the clamping cylinder fixing plate 35-1 corresponding to the positions of the left half clamping nut 32-1 and the right half clamping nut 32-2. The two clamping nut stoppers 35-3 are respectively arranged on the clamping cylinder fixing plate 35-1 corresponding to the positions of the left half clamping nut 32-1 and the right half clamping nut 32-2. A clamping activity space 35-4 is set between 2-2, and the two clamping nut blocks 35-2 are set on the clamping cylinder fixing plate 35-1 corresponding to the position of the docking gap between the left half clamping nut 32-1 and the right half clamping nut 32-2. The inner sides of the clamping nut blocks 35-2 are respectively provided with limiting grooves 35-5 for limiting the axial movement of the clamping nut 32, so that the clamping nut 32 can only move in the horizontal direction during the braking and opening process, and no axial movement occurs, thereby ensuring the accuracy of the braking position.

[0065] In this embodiment, the clamping cylinder assembly 33 is arranged on one side of the right half clamping nut 32 - 2 .

[0066] The brake limit ring 31 is installed on the upper end of the clamping nut 32, the clamping cylinder core shaft 33-2 is connected to the right half of the clamping nut 32-2 through a core shaft retaining ring 33-5, the clamping cylinder front cover 33-3 is connected to the left half of the clamping nut 32-1 through the clamping cylinder guide column 33-4, the clamping cylinder sleeve 33-1 is connected to the clamping cylinder front cover 33-3, the clamping cylinder core shaft 33-2 is fixedly installed in the clamping cylinder sleeve 33-1, the clamping nut pressure block 35-2 limits the clamping nut 32 on the clamping cylinder fixing plate, the clamping nut stopper 35-3 is connected and installed on the clamping nut pressure block 35-2 and placed on the left and right sides of the clamping nut, and the adjustable opening limit rod 34 is horizontally installed on the clamping nut stopper 35-3 to achieve the limitation of the clamping nut 32.

[0067] When oil enters the clamping cylinder sleeve 33-1, it pushes the clamping cylinder front cover 33-3 to move right, driving the clamping cylinder guide column 33-4 to pull the left half clamping nut 32-1 of the clamping nut 32 to move right. When the left half brake limit ring 31-1 reaches the limit position, the right half clamping nut 32-2 is pushed to the left by the clamping cylinder core shaft 33-2 to reach the limit position; when oil enters the clamping cylinder front cover 33-3, the clamping cylinder core shaft 33-2 pulls the right half clamping nut 32-2 to move right to reach the position of the adjustable opening limit rod 34. The clamping cylinder front cover 33-3 moves to the left, driving the clamping cylinder guide column 33-4 to push the left half clamping nut 32-1 to move left to reach the position of the adjustable opening limit rod 34.

[0068] The inner diameter of the brake limit ring 31 is the same as the outer diameter of the brake column 2. The left half brake limit ring 31-1 and the right half brake limit ring 31-2 are respectively connected and fixed to the left half clamping nut 32-1 and the right half clamping nut 32-2. When the clamping nut 32 on one side reaches the theoretical brake position, the brake limit ring 31 fits and gets stuck on the brake column 2, prompting the clamping nut 32 on the other side to move to the theoretical brake position; the adjustable opening limit rod 34 is fixedly installed on the clamping nut block 35-3, and the adjustable opening limit rod 34 is adjustable to the theoretical opening position of the clamping nut 32. When the clamping nut 32 on one side is opened to the theoretical position, it supports the adjustable opening limit rod 34, prompting the clamping nut 32 on the other side to open to the theoretical position.

[0069] The mold adjusting cylinder assembly 5 comprises a mold adjusting cylinder lower cover 51 , a mold adjusting cylinder sleeve 52 , a mold adjusting cylinder upper cover 53 , a mold adjusting cylinder core shaft 54 ​​and a mold adjusting cylinder retaining ring 55 .

[0070] The mold adjusting cylinder assembly 5 is installed on the lower end surface of the lower mold plate 11 through the mold adjusting cylinder lower cover 51, and is connected to the mold cylinder sleeve 41 through the mold adjusting cylinder mandrel clamping ring 55. The mold adjusting cylinder assembly 5 acts on the adjustment of the upper and lower holding positions of the brake column 2. The brake column 2 and the clamping nut 32 cooperate to hold the required position, but due to the different installation and mold heights, the mold adjusting cylinder assembly 5 needs to adjust the holding position. The mold adjusting cylinder assembly 5 drives the mold cylinder sleeve 41 to move up and down through the mold adjusting cylinder mandrel 54 to pull the brake column 2 up and down to adjust the holding position.

[0071] The quick cylinder assembly 6 comprises a quick cylinder sleeve 61 , a quick cylinder flange 62 , a quick cylinder lower cover 63 , a quick cylinder core shaft 64 , and a quick cylinder core shaft retaining ring 65 .

[0072] The quick cylinder assembly 6 is installed on the mold closing guide column bracket 13 through the quick cylinder lower cover 63, and is connected to the upper mold plate 12 through the quick cylinder core shaft clamp ring 65. The quick cylinder assembly 5 acts on the up and down movement of the upper mold plate 12 to play the role of opening and closing the mold, and the up and down movement of the quick cylinder core shaft 64 drives the upper mold plate 12 to move up and down.

[0073] The fast cylinder assembly 6 is provided with two groups on the left and two groups on the right.

[0074] The injection assembly 7 is arranged on the upper mold plate 12. The injection assembly 7 can adopt any injection assembly in the prior art as required to realize the injection function.

[0075] The injection molding machine with independent and precise mold brake position adjustment described in the above embodiment improves the service life of the whole machine structure. At the brake closing contact position, the brake limit ring and the brake machine column touch each other, avoiding the damage of the clamping nut collision; the clamping nut and the brake machine column teeth are evenly meshed with force, and there is no uneven force. The whole machine structure is more stable, the brake position is balanced, and there is no force swing after reaching the theoretical brake position and high pressure. The force acting on the upper template is stable, which improves the brake accuracy. When reaching the theoretical brake position, the opening and closing position of each time is accurate without deviation, the brake effect is good, and the injection molded product quality is high.

[0076] The above embodiments are only some of the embodiments of the utility model, not all of them. At the same time, based on the embodiments described in the utility model, all other embodiments obtained by ordinary technicians in this field on the basis of the technical solution of this application without creative work should fall within the scope of protection of the utility model.

Claims

1. An injection molding machine with independent and precise mold brake position adjustment, comprising an upper mold plate (12), a lower mold plate (11) and a brake column (2), wherein a mold cylinder assembly (4) is arranged below the lower mold plate (11), characterized in that: An adjustable brake assembly (3) cooperating with the brake column (2) is arranged on the upper mold plate (12), a brake limit ring (31) and an adjustable opening limit rod (34) are arranged in the brake assembly (3), and an adjustable mold cylinder assembly (5) for adjusting the upper and lower brake positions of the brake column (2) is arranged between the mold cylinder assembly (4) and the lower mold plate (11).

2. The injection molding machine with independent and precise mold brake position adjustment according to claim 1, characterized in that: The brake column (2) is integrally provided with a brake column threaded section (22) and a brake column optical axis section (23), and the inner diameter of the brake limiting ring (31) is consistent with the outer diameter of the brake column optical axis section (23).

3. The injection molding machine with independent and precise mold brake position adjustment according to claim 1, characterized in that: The holding brake assembly (3) comprises a clamping nut (32) which is arranged in a half-opened manner, a clamping cylinder assembly (33) and a clamping cylinder fixing assembly (35).

4. The injection molding machine with independent and precise mold brake position adjustment according to claim 3, characterized in that: The brake limiting ring (31) and the clamping nut (32) are arranged in correspondence to form a half structure; the brake limiting ring (31) is arranged at the upper end of the clamping nut (32) and performs brake holding and opening movements together with the clamping nut (32).

5. The injection molding machine with independent and precise mold brake position adjustment according to claim 3, characterized in that: The clamping cylinder assembly (33) comprises a clamping cylinder sleeve (33-1), a clamping cylinder core shaft (33-2), a clamping cylinder front cover (33-3) and a clamping cylinder guide column (33-4); the clamping cylinder core shaft (33-2) passes through the clamping cylinder front cover (33-3) and is connected to the clamping nut (32); one end of the clamping cylinder guide column (33-4) is connected to the clamping nut (32); and the other end of the clamping cylinder guide column (33-4) passes through the clamping cylinder front cover (33-3) and is connected to the clamping cylinder front cover (33-3).

6. The injection molding machine with independent and precise mold brake position adjustment according to claim 3, characterized in that: The clamping cylinder fixing assembly (35) comprises a cylinder fixing plate (35-1) arranged in an overall frame structure, two clamping nut pressing blocks (35-2) arranged in parallel, and two clamping nut stoppers (35-3) arranged in parallel.

7. The injection molding machine with independent and precise mold brake position adjustment according to claim 6, characterized in that: The two clamping nut blocks (35-3) are arranged on the clamping cylinder fixing plates (35-1) on both sides of the clamping nut in a direction perpendicular to the clamping and opening movement directions of the clamping nut, an adjustable clamping activity space (35-4) is provided between the two clamping nut blocks (35-3) and the clamping nut, and the adjustable opening limit rod (34) is vertically arranged on the two clamping nut blocks (35-3) and extends into the clamping activity space (35-4).

8. The injection molding machine with independent and precise mold brake position adjustment according to claim 6, characterized in that: The two clamping nut pressing blocks (35-2) are arranged on the clamping cylinder fixing plates (35-1) on the other two sides of the clamping nut in a direction parallel to the clamping and opening movement directions of the clamping nut, and the inner sides of the clamping nut pressing blocks (35-2) are respectively provided with limiting grooves (35-5) for limiting the axial movement of the clamping nut (32).

9. The injection molding machine with independent and precise mold brake position adjustment according to any one of claims 1 to 8, characterized in that: The mold adjusting cylinder assembly (5) comprises a mold adjusting cylinder sleeve (52) and a mold adjusting cylinder mandrel (54). The mold adjusting cylinder assembly (5) is installed on the lower end surface of the lower mold plate (11) via a mold adjusting cylinder lower cover (51) and is connected to the mold cylinder assembly (4) via a mold adjusting cylinder mandrel clamping ring (55).

10. The injection molding machine with independent and precise mold brake position adjustment according to claim 9, characterized in that: The mold adjustment cylinder assembly (5) drives the mold cylinder assembly (4) to move up and down through the mold adjustment cylinder core shaft (54), thereby pulling the brake machine column (2) to move up and down to adjust the brake position.

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