Injection hook forming mold

Abstract

The utility model relates to an injection hook forming die in the field of forming dies, which is characterized in that two ends of a forming roller and two ends of a feeding roller are respectively connected with two groups of bearings, the forming roller and the feeding roller are both connected with a driving component, a cooling channel penetrating through the forming roller is arranged in the middle of the forming roller, and the axis of the cooling channel coincides with the axis of the forming roller. The two ends of the forming roller are connected with an air inlet pipe and an air outlet pipe correspondingly, the air inlet pipe is in butt joint with the refrigeration assembly, low-temperature gas generated by the refrigeration assembly is blown into the cooling channel through the air inlet pipe, the temperature of the forming roller is reduced, and when the sheet-shaped base material passes through the forming channel, the forming roller is pressed out of the hook face and exchanges heat with the sheet-shaped base material. The temperature of the sheet-shaped base material is reduced, so that the hook surface is shaped, integration of a cooling system and the forming roller is realized, cooling is performed through the forming roller, a standing area required by traditional natural cooling is abandoned, and rapid cooling and shaping of the sheet-shaped base material are directly completed in the forming process.

Description

TECHNICAL FIELD

[0001] The utility model relates to a forming die field, especially a kind of injection hook forming die. BACKGROUND

[0002] Injection hook is a kind of connector widely used in textile, clothing, packaging and other fields, usually by sheet base material and surface forming hook face composition.Injection hook realizes quick connection and separation by the hook cooperation with hair surface material, with the characteristics of convenient use, reusable.Injection hook production process mainly includes two key steps of hot-press forming and cooling setting, wherein the design of forming die directly influences the quality and production efficiency of injection hook.

[0003] The forming die of injection hook usually includes frame body, forming roller and feeding roller and other components.Sheet base material is sent into forming channel by feeding roller, and under the action of forming roller, the surface of base material is pressed out hook face.A plurality of annular model pieces and annular file pieces are provided on forming roller, and the hook-shaped notch on annular model piece cooperates with annular file piece to form hook-shaped groove, for forming hook face on the surface of base material.After forming, the formed injection hook is usually set by natural cooling, that is, sheet base material is gradually cooled by air convection, so as to realize the setting of hook face.

[0004] The existing injection hook forming die has the following defects: the die structure is usually large, occupies large space, is not conducive to the optimization layout of production site, and the formed injection hook needs to be set by natural cooling, which needs a long space to stand the product, resulting in the increase of production line length, not only occupies more site, but also reduces production efficiency.In addition, the speed of natural cooling is slow, which can easily cause the deformation of injection hook in cooling process or uneven setting of hook face, affecting product quality. UTILITY MODEL CONTENTS

[0005] In order to overcome the deficiencies of prior art, the utility model provides an injection hook forming die, which can effectively solve the technical problems of large space occupation and uneven cooling effect.

[0006] The technical scheme adopted by the utility model to solve its technical problems is:

[0007] The utility model provides an injection hook forming die, including frame body, rotatable forming roller and feeding roller are arranged on frame body, and forming roller and feeding roller are arranged in parallel up and down in frame body, and the forming channel is between forming roller and feeding roller, and the sheet base material passes through the forming channel to form the hook surface on the surface, a plurality of annular stop pieces and a plurality of annular model pieces are sleeved on the forming roller, a plurality of annular model pieces are arranged alternately with a plurality of annular stop pieces, a plurality of hook type notches are arranged on the annular model piece, and the hook type notch forms the hook type groove with two adjacent annular stop pieces, bearing seat is arranged on the frame body, and the both ends of forming roller and feeding roller are connected with two groups of bearings respectively, and the driving assembly is connected to forming roller and feeding roller, the cooling channel that passes through forming roller is arranged in the middle part of forming roller, the axis of cooling channel coincides with the axis of forming roller, the air inlet pipe and the air outlet pipe are connected to the both ends of forming roller respectively, the air inlet pipe is butt jointed with refrigeration assembly, and the low-temperature gas generated by refrigeration assembly blows into cooling channel through air inlet pipe, so that the temperature of forming roller is reduced, and the sheet base material exchanges heat with the hook surface when passing through the forming channel, so that the temperature of sheet base material is reduced to make the hook surface shape.

[0008] Further, the forming roller and the feeding roller are engaged and driven through transmission gears, any one of the forming roller and the feeding roller is connected with the driving assembly, the driving assembly drives any one of the forming roller and the feeding roller to rotate, and then drives the other roller to rotate synchronously through the transmission gears, and the rotating directions of the forming roller and the feeding roller are opposite.

[0009] Further, the cooling channel that passes through the feeding roller is arranged in the middle part of the feeding roller, the axis of the cooling channel coincides with the axis of the feeding roller, and the air inlet pipe and the air outlet pipe are connected to the both ends of the feeding roller respectively.

[0010] Further, the refrigeration assembly comprises a compressor, an expansion valve, a condenser and an evaporator, refrigerant passes through the condenser, the evaporator and the expansion valve in sequence from the compressor through pipelines, and finally returns to the compressor, and the evaporator is provided with a blower, and the blower is aligned with the end of the air inlet pipe away from the forming roller.

[0011] Further, the wind box is arranged, and the evaporator and the blower are arranged in the wind box, the surface of the blower is provided with the air inlet and the air outlet, and the air outlet is butt jointed with the air inlet pipe.

[0012] Further, the inner wall of the cooling channel is provided with a plurality of heat dissipation fins.

[0013] Compared with the prior art, the beneficial effects of the utility model are that: the middle part of the forming roller is provided with a cooling channel penetrating the shaft center, the cooling channel is connected with the external refrigeration assembly through the air inlet pipe and the air outlet pipe, the integration of the cooling system and the forming roller is realized, the cooling is carried out through the forming roller, the static area required by the traditional natural cooling is abandoned, the rapid cooling and setting of the sheet base material are directly completed in the forming process, the production line length is greatly shortened, the space occupation of the production site is reduced, the equipment layout is optimized, the low-temperature gas generated by the refrigeration assembly is blown into the cooling channel through the air inlet pipe, the low-temperature gas is discharged through the air outlet pipe after circulating in the forming roller, the temperature of the forming roller is rapidly reduced. When the sheet base material passes through the forming channel, the forming roller and the base material directly exchange heat, the hook surface is rapidly cooled and set while being pressed and formed, compared with the natural cooling, the active refrigeration significantly accelerates the cooling speed, avoids the problems of hook surface deformation or poor setting caused by uneven cooling, and improves the product quality consistency. BRIEF DESCRIPTION OF DRAWINGS

[0014] Figure 1 It is the front view of the utility model;

[0015] Figure 2 It is the structural schematic view of the forming roller in the utility model;

[0016] Figure 3 It is the structural schematic view of the refrigeration assembly in the utility model;

[0017] Figure 4 It is the transmission schematic view of the forming roller and the feeding roller in the utility model;

[0018] Marked number in drawing: 1 - frame body, 2 - forming roller, 3 - feeding roller, 4 - forming channel, 5 - bearing seat, 6 - cooling channel, 7 - air inlet pipe, 8 - air outlet pipe, 9 - refrigeration assembly, 901 - compressor, 902 - expansion valve, 903 - condenser, 904 - evaporator, 905 - air blower, 10 - transmission gear. DETAILED DESCRIPTION

[0019] The technical scheme in the embodiments of the utility model will be clearly and completely described below in combination with the drawings in the embodiments of the utility model, obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by the person skilled in the art without creative labor belong to the protection scope of the utility model.

[0020] The technical scheme in the embodiments of the utility model will be clearly and completely described below in combination with the drawings in the embodiments of the utility model, obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by the person skilled in the art without creative labor belong to the protection scope of the utility model. Figures 1-4 The injection hook forming die of the utility model is described in detail:

[0021] The utility model provides an injection hook forming die, including frame body 1, frame body 1 is provided with rotatable forming roller 2 and feeding roller 3, forming roller 2 and feeding roller 3 are arranged in parallel in frame body 1, and the forming channel 4 between forming roller 2 and feeding roller 3, and the sheet base material passes through the forming channel 4 to form hook surface on the surface, the forming roller 2 is sleeved with a plurality of annular stop sheets and a plurality of annular model sheets, a plurality of annular model sheets are arranged alternately with a plurality of annular stop sheets, a plurality of hook type notches are arranged on the annular model sheet, and the hook type notch forms hook type groove with two adjacent annular stop sheets, the frame body 1 is provided with bearing seat 5, and the both ends of forming roller 2 and feeding roller 3 are connected with two groups of bearings respectively, and forming roller 2 and feeding roller 3 are all connected with drive assembly, the middle part of forming roller 2 is provided with cooling channel 6 that penetrates forming roller 2, the axis of cooling channel 6 coincides with the axis of forming roller 2, and the both ends of forming roller 2 are connected with air inlet pipe 7 and air outlet pipe 8 respectively, air inlet pipe 7 is connected with refrigeration assembly 9, and the low-temperature gas generated by refrigeration assembly 9 is blown into cooling channel 6 through air inlet pipe 7, so that the temperature of forming roller 2 is reduced, the sheet base material is pressed out hook surface by forming roller 2 when passing through the forming channel 4 and exchanges heat with the sheet base material, so that the sheet base material temperature drops to make the hook surface shape.

[0022] The middle part of forming roller 2 is provided with cooling channel 6 that penetrates the axis, cooling channel 6 is connected with external refrigeration assembly 9 through air inlet pipe 7 and air outlet pipe 8, realizes the integration of cooling system and forming roller 2, and is cooled through forming roller 2, discards the static area required by traditional natural cooling, directly completes the rapid cooling shaping of sheet base material in the forming process, greatly shortens the length of production line, reduces the space occupation to production site, optimizes the equipment layout, and the low-temperature gas generated by refrigeration assembly 9 is blown into cooling channel 6 through air inlet pipe 7, and the low-temperature gas is discharged through air outlet pipe 8 after circulating in forming roller 2, so that the temperature of forming roller 2 is rapidly reduced.

[0023] The forming roller 2 and feeding roller 3 are engaged and driven through transmission gear 10, the forming roller 2 is connected with drive motor, after drive motor drives forming roller 2 to rotate, feeding roller 3 is driven to rotate synchronously through transmission gear 10, and the rotating direction of forming roller 2 and feeding roller 3 is opposite, so as to ensure that the rotating direction of forming roller 2 and feeding roller 3 is opposite and speed is consistent, avoids that the sheet base material slips or deviates in the forming channel 4, and improves the precision and stability of hook surface forming.

[0024] The middle part of the feeding roller 3 is provided with a cooling channel 6 penetrating the feeding roller 3, the axis of the cooling channel 6 coincides with the axis of the feeding roller 3, the two ends of the feeding roller 3 are respectively connected with an air inlet pipe 7 and an air outlet pipe 8, the air inlet pipe 7 is connected with a refrigeration assembly 9, so that the feeding roller 3 is cooled at the same time with the forming roller 2, the temperature of the sheet-shaped base material is further reduced, the hook surface is quickly shaped after forming, the deformation problem caused by uneven cooling is avoided, and the product quality and production efficiency are improved.

[0025] The refrigeration assembly 9 comprises a compressor 901, an expansion valve 902, a condenser 903 and an evaporator 904, the refrigerant passes through the condenser 903, the evaporator 904 and the expansion valve 902 in sequence through pipelines from the compressor 901, and finally returns to the compressor 901, the evaporator 904 is provided with a blower 905, the blower 905 is aligned with the end of the air inlet pipe 7 away from the forming roller 2, a wind box is arranged, the evaporator 904 and the blower 905 are arranged in the wind box, the surface of the blower 905 is provided with an air inlet and a gas outlet, and the gas outlet is connected with the air inlet pipe 7.

[0026] The inner wall of the cooling channel 6 is provided with a plurality of heat dissipation fins, the heat dissipation fins increase the inner surface area of the cooling channel 6, improve the heat exchange efficiency between the low-temperature gas and the inner wall of the forming roller 2, further enhance the cooling effect, and ensure that the sheet-shaped base material is quickly and uniformly cooled and shaped during the forming process.

[0027] It is obvious for those skilled in the art that the present application is not limited to the details of the above exemplary embodiments, and the present application can be implemented in other specific forms without departing from the spirit or essential characteristics of the present application. Therefore, the embodiments should be regarded as exemplary and non-limiting, the scope of the present application is defined by the appended claims rather than the above description, and all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be included in the present application. Any reference signs in the claims should not be regarded as limiting the claims.

Claims

1. An injection molding die for hooks, comprising a frame, on which a rotatable forming roller and a feeding roller are mounted, the forming roller and the feeding roller being arranged parallel vertically within the frame, a forming channel being formed between the forming roller and the feeding roller, a sheet-like substrate passing through the forming channel to form a hook surface on its surface, a plurality of annular baffles and a plurality of annular mold pieces being sleeved on the forming roller, the plurality of annular mold pieces and the plurality of annular baffles being arranged alternately, the annular mold pieces being provided with a plurality of hook-shaped notches, the hook-shaped notches forming hook-shaped grooves with two adjacent annular baffles, characterized in that: The frame body is provided with a bearing seat, two ends of the forming roller and the feeding roller are connected with two groups of bearings respectively, the forming roller and the feeding roller are connected with driving assemblies, the middle part of the forming roller is provided with a cooling channel penetrating through the forming roller, the axis of the cooling channel coincides with the axis of the forming roller, two ends of the forming roller are connected with air inlet pipes and air outlet pipes respectively, the air inlet pipes are connected with the refrigeration assembly, low-temperature gas generated by the refrigeration assembly is blown into the cooling channel through the air inlet pipes, so that the temperature of the forming roller is reduced, the sheet-shaped base material is pressed by the forming roller when passing through the forming channel, and the sheet-shaped base material is heat-exchanged with the sheet-shaped base material, so that the temperature of the sheet-shaped base material is reduced, and the hook surface is shaped.

2. An injection hook forming mold according to claim 1, characterized in that: The forming roller and the feeding roller are engaged and driven through transmission gears, any one of the forming roller and the feeding roller is connected with the driving assembly, the driving assembly drives any one of the forming roller and the feeding roller to rotate, and then drives the other roller to rotate synchronously through the transmission gears, and the rotating directions of the forming roller and the feeding roller are opposite.

3. The injection hook forming mold according to claim 1, wherein: The middle part of the feeding roller is provided with a cooling channel penetrating through the feeding roller, the axis of the cooling channel coincides with the axis of the feeding roller, and two ends of the feeding roller are connected with air inlet pipes and air outlet pipes respectively.

4. An injection hook forming mold according to any one of claims 1 to 3, characterized in that: The refrigeration assembly comprises a compressor, an expansion valve, a condenser and an evaporator, refrigerant passes through the condenser, the evaporator and the expansion valve in sequence from the compressor through pipelines, and finally returns to the compressor, the evaporator is provided with a blower, and the blower is aligned with one end of the air inlet pipe away from the forming roller.

5. An injection hook forming mold according to claim 4, characterized in that: An air bellow is arranged, the evaporator and the blower are arranged in the air bellow, the surface of the blower is provided with an air inlet and an air outlet, and the air outlet is connected with the air inlet pipe.

6. An injection hook forming mold according to any one of claims 1 to 3, characterized in that: The inner wall of the cooling channel is provided with a plurality of heat dissipation fins.

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