CN105344793A - Air conditioner fin rolling-cutting sub-die - Google Patents

Abstract

The invention discloses a rolling cutting sub-die for air-conditioning fins. The rolling cutting sub-die includes a support assembly and a hob assembly arranged on the support assembly. The hob assembly includes an upper hob assembly and a lower hob assembly that roll and cooperate with each other. Hob assembly. Rolling cutting makes air-conditioning fin slitting without repeated cutting parts, no burrs, smooth slitting, smooth appearance, and 100% yield, which mainly saves a deburring process, which is conducive to automated production, saves time and effort, and is effective reduce product cost.

Description

Air conditioner fin roll cutting sub-die

technical field

The invention relates to a mold, in particular to an air-conditioning fin rolling and cutting sub-die.

Background technique

Please refer to FIG. 1 , which is a schematic diagram of the structure of an air conditioner fin in the prior art. Several pieces of air-conditioning fins 1 are stacked together and combined through tube penetration and expansion to form an evaporator and a condenser, which is an important part of the air-conditioning heat exchanger.

The air conditioner fin 1 is formed by mold processing. The fin mold belongs to a continuous stamping mold. It stamps aluminum strips, copper strips, stainless steel, etc. into precision molds of various shapes. The products produced are mostly used in the refrigeration and heat dissipation industry. Fin molds include air-conditioning fin molds, high-flange fin molds, refrigerator fin molds, special-purpose fin molds, etc. Air conditioner fin molds are suitable for household air conditioners, central air conditioners, dehumidifiers, etc. The main punching material is aluminum foil. Please refer to Fig. 3, it is existing air conditioner fin mold structure, and it mainly comprises upper formwork 2 and lower formwork 3, is provided with stretching subdie 10, punching subdie 11, opening between upper formwork 2 and lower formwork 3 Window sub-mold 12, flanging sub-mold 13, special-shaped cutting sub-mold 14, edge cutting sub-mold 15, guiding sub-mold 16, slitting sub-mold 17, drawing material sub-mold 18, cross-cutting sub-mold 19, depending on the mold structure and product sheet type Thinning and drawing sub-modes, louver sub-modes, etc. will also be added.

Please refer to FIG. 2 , the air-conditioning fin 1 (the whole piece of the air-conditioning fin that has not been cut) is cut into strips in the fin mold by the slitting sub-die 17 along the dotted line 20 shown in the figure. Please refer to Fig. 4, the slitting knife of the slitting sub-die 17 punches and divides the strips, and the working method is as follows: the mold is punched once, and the material advances a step length to the discharge direction, and the slitting upper knife 171 of the slitting knife and the Slitting lower knife 172 cuts once, and in order to guarantee can cut completely, general slitting cut length can be greater than stepping length, will have the phenomenon that cutting edge repeatedly cuts in the machining process.

Due to the installation accuracy of the upper and lower slitting knives and the small left and right swing of the air-conditioning fins in the mold during the operation of the mold, repeated cutting will produce heavy cutting burrs and a high defect rate. Moreover, such burrs are not allowed after the air-conditioning fins are produced and assembled, so a deburring process needs to be added. Increase manpower and material resources, reduce efficiency, and increase costs accordingly.

Contents of the invention

The purpose of the present invention is to provide a rolling cutting sub-die for air-conditioning fins to solve the problems in the prior art that the processing of air-conditioning fins will produce re-cut burrs, high defect rate, and need to increase the deburring process, resulting in high cost and low efficiency. .

In order to achieve the above object, the present invention provides an air-conditioning fin rolling cutting sub-die, the rolling cutting sub-die includes a support assembly and a hob assembly arranged on the support assembly, and the hob assembly includes upper rollers that roll and cooperate with each other Knife assembly and lower reel assembly.

Further, the upper hob assembly includes an upper knife fixed sleeve, an upper bearing is arranged in the upper knife fixed sleeve, an upper fixed shaft is arranged in the upper bearing, and upper knives are respectively fixed on both sides of the upper knife fixed sleeve. blade; the lower hob assembly includes a lower knife fixing sleeve, a lower bearing is arranged in the lower knife fixing sleeve, a lower fixing shaft is arranged in the lower bearing, and lower blades are respectively fixed on both sides of the lower knife fixing sleeve ; The cutting edge of the upper blade is installed opposite to the cutting edge of the lower blade.

Further, the outer sides of the upper knife fixing sleeve and the lower knife fixing sleeve are respectively provided with adjusting shims.

Further, sealing sleeves are respectively provided on both sides of the upper bearing and the lower bearing.

Further, the support assembly includes an upper support plate and a lower support plate, upper movable seats are respectively provided at both ends of the upper support plate, lower movable seats are respectively provided at both ends of the lower support plate, the upper movable The seat and the lower movable seat are flexibly hinged through connecting pins; the side of the upper support plate is provided with a bracket upper mounting plate, and the side of the bracket upper mounting plate is provided with multiple groups of upper brackets, and the upper brackets are provided with card slots , the two ends of the upper bearing are clamped in the slots of the upper bracket; the side of the lower support plate is provided with a bracket lower mounting plate, and the side of the bracket lower mounting plate is provided with multiple groups of lower brackets, so A slot is provided on the lower bracket, and the two ends of the lower bearing are clamped in the slot of the lower bracket.

Further, the supporting assembly is provided with a positioning device for calibrating the gap between the upper hob assembly and the lower hob assembly.

Further, the positioning device includes an upper positioning block, a lower positioning block and a limit block arranged between the upper movable seat and the lower movable seat, the upper positioning block is fixed to the upper movable seat, and the The lower positioning block is fixed with the lower movable seat, the upper positioning block cooperates with the lower positioning block; One end of the limit rod is fixed to the upper movable seat, and the other end is fixed to the lower movable seat.

Further, a lifting screw is arranged on the upper movable seat, and the stud end of the lifting screw is opposite to the limit block.

Further, two material guide plates are installed between the upper hob assembly and the lower hob assembly.

The present invention has the following beneficial effects:

The rolling cutting sub-die is rolling and cutting, so that the air-conditioning fin slitting has no repeated cutting parts, no burrs, smooth slitting, and a smooth appearance, which can achieve a 100% yield rate. It mainly saves a deburring process, which is conducive to automated production and saves Save time and effort, and effectively reduce product costs.

Description of drawings

Hereinafter, the present invention will be described in further detail with reference to the drawings. The accompanying drawings constituting a part of this application are used to provide further understanding of the present invention, and the schematic embodiments and descriptions of the present invention are used to explain the present invention, and do not constitute an improper limitation of the present invention. In the attached picture:

Fig. 1 is a structural schematic diagram of an air-conditioning fin;

Fig. 2 is a structural schematic diagram of an uncut air-conditioning fin;

Fig. 3 is a structural schematic diagram of an air-conditioning fin mold in the prior art;

Fig. 4 is the schematic diagram of cutting the air-conditioning fin in the slitting sub-die in the air-conditioning fin mold in the prior art;

Fig. 5 is the structural representation of air-conditioning fin mold among the present invention;

Fig. 6 is a structural schematic diagram of a preferred embodiment of the air-conditioning fin rolling and cutting sub-die of the present invention;

Fig. 7 is a cross-sectional view of the hob assembly in the preferred embodiment of the air-conditioning fin rolling and cutting sub-die of the present invention;

Fig. 8 is a side view of the hob assembly in the preferred embodiment of the air-conditioning fin rolling and cutting sub-die of the present invention;

Fig. 9 is a structural schematic diagram of the support assembly in the preferred embodiment of the air-conditioning fin rolling and cutting sub-die of the present invention;

Fig. 10 is a schematic diagram of cooperation between the upper support plate and the lower support plate of the support assembly in the preferred embodiment of the air-conditioning fin rolling and cutting sub-die of the present invention.

detailed description

Embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings.

Please refer to Fig. 5, a preferred embodiment of the present invention provides an air-conditioning fin mold, including an upper template 2 and a lower template 3, along the conveying direction of the air-conditioning fin, between the upper template 2 and the lower template 3 A stretching sub-mold 10, a punching sub-mold 11, a window sub-mold 12, a flanging sub-mold 13, a special-shaped cutting sub-mold 14, a side cutting sub-mold 15, a material drawing sub-mold 18 and a cross-cutting sub-mold 19 are arranged in sequence. Between the die 15 and the drawing sub-mold 18, there is a rolling cutting sub-mold 100, the rolling cutting sub-mold 100 includes a support assembly and a hob assembly arranged on the support assembly, and the hob assembly includes mutual rolling fit Upper reel assembly and lower reel assembly.

When the air-conditioning fin mold is processing the air-conditioning fins, the aluminum strip is first sent to the stretching sub-mold 10 through the feeding mechanism for packaging and stretching, and then punched through the punching sub-mold 11 in turn, and the window opening sub-mold 12 opens the window and flangs. The sub-mold 13 flangs the orifice punched by the punching sub-mold 11, the special-shaped cutting sub-mold 14 performs the fin special-shaped incision processing, the side-cutting sub-mold 15 cuts off the waste on both sides, and the upper hob assembly and the lower hob of the rolling-cut sub-mold 100 The components are rolled and cut into strips, the material pulling sub-mold 18 drives the fins forward, the fins pass through the cross-cutting sub-mold 19, and when the length of the air-conditioning fin reaches the product size, the cross-cutting process is performed, and the fin processing is completed. Since the rolling cutting sub-die 100 is cut by rolling the upper hob assembly and the lower hob assembly, compared with the traditional slitting method, it does not need the direct power of the punching machine and is not connected with the upper template 2 of the mold, so the upper mold frame of the mold The size and length direction of 2 can be reduced, the weight of the upper formwork 2 can be reduced, the processing cost of the upper formwork can be reduced, and the service life of the punching machine can be improved. At the same time, the rolling cutting method makes the strips of the air-conditioning fins free of repeated cutting parts, no burrs, smooth strips, and a smooth appearance, which can achieve 100% yield. It mainly saves a deburring process, which is conducive to automated production and saves Save time and effort, and effectively reduce product costs.

Please refer to Figures 6 to 8, the upper hob assembly includes an upper knife fixing sleeve 101, an upper bearing 102 is arranged in the upper knife fixing sleeve 101, an upper fixing shaft 103 is arranged in the upper bearing 102, and the upper Upper blades 104 are respectively fixed on both sides of the knife fixing sleeve 101 . The lower hob assembly includes a lower knife fixed sleeve 105, a lower bearing 106 is arranged in the lower knife fixed sleeve 105, a lower fixed shaft 107 is arranged in the lower bearing 106, and the two sides of the lower knife fixed sleeve 105 are respectively A lower blade 108 is fixed. The edge of the upper blade 104 is opposite to the edge of the lower blade 108 .

The upper blade 104 is fixed to the upper knife fixing sleeve 101 through the mounting screw, the upper bearing 102 is arranged in the upper knife fixing sleeve 101, the upper fixing shaft 103 is installed in the upper bearing 102 and axially fixed, and the upper knife fixing sleeve 101 can be fixed in the radial direction. turn. Lower blade 108 is fixed with lower knife fixed sleeve 105 through mounting screw, and lower bearing 106 is arranged in the lower knife fixed sleeve 105, and lower fixed shaft 107 is penetrated and fixed axially in lower bearing 106, and lower knife fixed sleeve 105 radial direction can rotate. When working, the upper blade 104 and the lower blade 108 rotate relative to each other, so as to realize the rolling cutting of the air-conditioning fins.

Preferably, in order to facilitate the installation and adjustment of the hob assembly, the outer sides of the upper knife fixing sleeve 101 and the lower knife fixing sleeve 105 are respectively provided with adjusting shims 109 .

Preferably, in order to prevent impurities from entering the bearing and causing damage to the upper bearing 102 and the lower bearing 106 , sealing sleeves 110 are respectively provided on both sides of the upper bearing 102 and the lower bearing 103 . The sealing sleeve 110 respectively seals the two sides of the upper bearing 102 and the lower bearing 103 .

Please refer to FIG. 9 and FIG. 10, the support assembly includes an upper support plate 201 and a lower support plate 202, the two ends of the upper support plate 201 are respectively provided with upper movable seats 203, and the two ends of the lower support plate 202 are respectively A lower movable seat 204 is provided, and the upper movable seat 203 and the lower movable seat 204 are articulated through connecting pins 205 . The side of described upper support plate 201 is provided with bracket upper mounting plate 206, and the side of described bracket upper mounting plate is provided with multiple sets of upper brackets 207, on the described upper bracket 207 offers draw-in groove, the two ends of described upper bearing 102 It is clamped in the clamping slot of the upper bracket 207 . The side of described lower support plate 202 is provided with bracket lower mounting plate, and the side of described bracket lower mounting plate is provided with multiple groups of lower brackets 208, and the described lower bracket 208 offers card slots, and the two ends of described lower bearing 106 are locked. It is arranged in the slot of the lower bracket 208 .

The hob cutters in other industries are installed in a whole group, and the other blades cannot be replaced separately. The maintenance time of the equipment is long and difficult. Using this support assembly, the hob assembly can be installed in groups, and the accuracy of each group of blades can be adjusted individually and replaced separately. The adjustment accuracy and replacement of blades will not affect other knife groups, which greatly saves mold maintenance time and reduces maintenance costs. difficulty.

Preferably, in order to facilitate debugging of the hob assembly and improve cutting accuracy; preferably, the support assembly is provided with a positioning device for calibrating the matching gap between the upper hob assembly and the lower hob assembly. The positioning device includes an upper positioning block 209, a lower positioning block 210 and a limiting block 211 arranged between the upper movable seat 203 and the lower movable seat 204, and the upper positioning block 209 and the upper movable seat 203 is fixed, the lower positioning block 210 is fixed with the lower movable seat 204, and the upper positioning block 209 cooperates with the lower positioning block 210; and, it is arranged on the upper movable seat 203 and the lower movable seat 204 side of the limit connecting rod 212, one end of the limit connecting rod 212 is fixed with the upper movable seat 203, and the other end is fixed with the lower movable seat 204. Under the limitation of this positioning structure, the upper hob assembly and the lower hob assembly can achieve precise cooperation, and the cutting size of the product is more standard.

Preferably, to facilitate the opening of the upper support plate 201 and the lower support plate 202 , a lift screw 213 is provided on the upper movable seat 203 , and the stud end of the lift screw 213 is opposite to the limit block 211 . Tighten the lifting screw 213, the end surface of the lifting screw 213 will push against the upper surface of the limit block 211, the upper support plate 201 will be lifted up with the connecting pin 205 as the fulcrum, and the corresponding upper hob assembly will be separated from the lower hob assembly open.

Preferably, two material guide plates 214 are installed between the upper hob assembly and the lower hob assembly, and the air-conditioning fins will pass through the gap between the two material guide plates 214 during material feeding, which is convenient Wearing material.

When the rolling and cutting sub-die 100 is working, first loosen the upper supporting plate 201 and the lower supporting plate 202, and tighten the lifting screw 213, the end surface of the lifting screw 213 will push against the upper surface of the limit block 211, and the upper supporting plate 201 is connected The pin 205 is lifted up as a fulcrum, and the corresponding upper hob assembly will be separated from the lower hob assembly.

The air-conditioning fin 1 can pass through the gap between the upper support plate 201 and the lower support plate 202 and the gap between the two material guide plates 214 , and the air-conditioning fin can be fed through the rolling and cutting sub-die 100 .

After the air-conditioning fins are threaded, the rolling and cutting sub-die needs to participate in the work. First, loosen the lifting screw 213 to ensure that there is no contact with the limit block 211.

When the upper support plate 201 and the lower support plate 202 are closed, the corresponding upper hob assembly and the blade edge of the lower hob assembly will be closed, and the rolling and cutting sub-mold 100 performs cutting work.

This rolling cutting sub-die replaces the traditional longitudinal cutting by rolling cutting. The air-conditioning fins produced have no burrs, smooth strips, and a flat appearance. It can achieve 100% yield and does not require subsequent manual processing of burrs, saving a The deburring process is conducive to automatic production, saves time and effort, and effectively reduces product costs.

The above descriptions are only preferred embodiments of the present invention, and are not intended to limit the present invention; for those skilled in the art, the present invention may have various modifications and changes. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention shall be included within the protection scope of the present invention.

Claims (9)

1. an air-conditioner fin rolling cut submodule, is characterized in that: described rolling cut submodule comprises supporting component and is arranged on the hobboing cutter assembly on described supporting component, and described hobboing cutter assembly comprises the upper hobboing cutter assembly and lower hobboing cutter assembly that mutually roll and coordinate.

2. air-conditioner fin rolling cut submodule according to claim 1, is characterized in that:

Described upper hobboing cutter assembly comprises upper slitter fixed cover, is provided with upper bearing (metal), arranges fixed axis in described upper bearing (metal) in described upper slitter fixed cover, and the both sides of described upper slitter fixed cover are fixed with cutter respectively;

Described lower hobboing cutter assembly comprises lower cutter fixed cover, is provided with lower bearing, arranges lower fixed axis in described lower bearing in described lower cutter fixed cover, and the both sides of described lower cutter fixed cover are fixed with bottom knife respectively;

The cutting edge of described cutter and the cutting edge of described bottom knife are mounted opposite.

3. air-conditioner fin rolling cut submodule according to claim 2, is characterized in that:

The outside of described upper slitter fixed cover and described lower cutter fixed cover is respectively arranged with adjustment pad.

4. air-conditioner fin rolling cut submodule according to claim 2, is characterized in that:

The both sides of described upper bearing (metal) and lower bearing are respectively arranged with sealing shroud.

5. air-conditioner fin rolling cut submodule according to claim 2, is characterized in that:

Described supporting component comprises upper backup pad and lower supporting plate, and the two ends of described upper backup pad are respectively arranged with sliding seat, and the two ends of described lower supporting plate are respectively arranged with lower sliding seat, and described upper sliding seat and described lower sliding seat are movably hinged by connecting pin;

The side of described upper backup pad is provided with support upper mounting plate, and the side of described support upper mounting plate is provided with organizes upper bracket more, and draw-in groove offered by described upper bracket, and the two ends of described upper bearing (metal) are fastened in the draw-in groove of described upper bracket;

The side of described lower supporting plate is provided with support lower installation board, and the side of described support lower installation board is provided with organizes lower carriage more, and draw-in groove offered by described lower carriage, and the two ends of described lower bearing are fastened in the draw-in groove of described lower carriage.

6. air-conditioner fin rolling cut submodule according to claim 5, is characterized in that:

Described supporting component is provided with the positioner of the described upper hobboing cutter assembly of calibration and described lower hobboing cutter assembly fit clearance.

7. air-conditioner fin rolling cut submodule according to claim 6, is characterized in that:

Described positioner comprises and is arranged on the upper locating piece between described upper sliding seat and described lower sliding seat, lower locating piece and limited block, described upper locating piece and described upper sliding seat are fixed, described lower locating piece and described lower sliding seat are fixed, and described upper locating piece and described lower locating piece cooperatively interact; And be arranged on the spacing extension bar of described upper sliding seat and described lower sliding seat side, described spacing extension bar one end and described upper sliding seat are fixed, and the other end and described lower sliding seat are fixed.

8. air-conditioner fin rolling cut submodule according to claim 7, is characterized in that:

Described upper sliding seat is provided with the screw that hoists, described in the hoist stud end of screw relative with described limited block.

9. the air-conditioner fin rolling cut submodule according to any one of claim 1-8, is characterized in that:

Between described upper hobboing cutter assembly and described lower hobboing cutter assembly, two pieces of stock guides are installed.