Background technology
The thermostatic type pressure heads mechanism is the accessory in the constant temperature hot-press equipment, is widely used in the welding of low-and high-frequency wire-wound inductor, the thermal weld of the flat cables such as FPC, FPC, FFC, coaxial line, socket.
In prior art, as shown in Figure 1, constant-temperature pressure head mechanism comprise the anodal piece that connects positive voltage, connect the negative pole piece of negative voltage and be connected to anodal piece and the negative pole piece on thermal head 1', anodal piece and negative pole piece are connected on external equipment.Under the guide effect of the pressure of cylinder 2' and guide rail 3', then the thermal head 1 of high-temperature heating is depressed on product through smooth adjusting.
But, there is following defective in existing pressure heads mechanism: (1) is referring to Fig. 1, traditional pressure heads mechanism adopts the mode of pushing up before and after screw to reach the purpose of regulating the pressure head flatness, distant due to set screw from thermal head 1', under the promotion of the large pressure of cylinder 2', finally act on product and can produce larger deformation, the flatness that causes mixing up is damaged; The parts such as traditional pressure head flatness governor motion 7' and radiating block 8' abut against together, because contact area is larger, heating block 4' long-term work is in the situation that HTHP, the very fast quilt of high temperature conducts on floating junction 5', cylinder 2' and guide rail 3', has shortened the service life of these parts; And when the heat-generating pipe 6' in heating block 4' is heated to temperature when higher, heating block 4' easily produces deformation under the effect of self internal stress, make the flatness of regulating thermal head become more difficult.(2) due to the restriction of external equipment structure, thermal head is installed difficulty, is not easy to assembling.Therefore, when thermal head broke down, inconvenience was changed it, inefficiency.In addition, due to operation inconvenience when installing or change pressure head, also easily cause the sliding tooth of mate with threaded holes between thermal head and securing member, indirectly shortened the service life of this pressure heads mechanism.
The utility model content
The utility model provides a kind of thermostatic type large scale touch-screen hot press, be intended to solve utilize in constant-temperature pressure head of the prior art mechanism flatness regulate difficulty, be difficult to change pressure head and service life short problem.The utility model compact conformation is reasonable, and is easy to adjust, good reliability, and efficient is high, and effectively improve the service life of equipment.
The technical solution of the utility model is: a kind of thermostatic type large scale touch-screen hot press, comprise cylinder, guide rail, thermal insulation board, be provided with the heating block of heat-generating pipe and be fixed in thermal head on described heating block by securing member, described heating block top is provided with coupled flatness governor motion, is provided with the adjusting play between described heating block and described flatness governor motion.Due to flatness governor motion layout adjacent with thermal head, both between the distance very short, the overall structure rigidity is strong, is difficult for deforming.
The utility model can be done following improvement, and described flatness governor motion comprises flatness adjustable plate and set screw, is specially; Described flatness adjustable plate is provided with the positive tooth set screw of a plurality of heating blocks strained that are evenly arranged along its length direction, and the front and back of each positive tooth set screw respectively are provided with an anti-tooth set screw that can hold out against heating block; Accordingly, the horizontal top surface of described heating block is provided with many group screw holes.The utility model is adjusted the thermal head flatness by the turn set screw, and is simple to operate.
The utility model can also be done following improvement, and described heating block is provided with a plurality of anti-deformation grooves that are evenly arranged along its length direction, and described each anti-deformation groove runs through the width of described heating block.Described distortion groove can make the internal stress of heating block under high temperature in time eliminate.
Be provided with the heat insulation support piece between flatness adjustable plate described in the utility model and described thermal insulation board.This heat insulation support piece is effectively isolated the power drive mechanism of pressure head and top, avoids the overheated and damage that causes of parts.
Two ends, heat insulation support piece described in the utility model up and down are fixedly connected with flatness adjustable plate and thermal insulation board respectively, and described thermal insulation board fixes with the transfer block of being located at the cylinder below.
Heat insulation support piece described in the utility model comprises two support units, and two support unit intervals are arranged, are close to respectively the two ends of described flatness adjustable plate.Make the pressure head part very little with the contact area of motivation transfer motion part, drop to the heat conduction minimum.
The utility model can also be done following further improvement, described heating block comprises body, described body top is to its width bending, form an integral installation face that runs through heating block length in the inboard corresponding with the body overbending direction of body bottom, described thermal head is fixed on described integral installation face by the plate that presses that is positioned at the thermal head outside.Due to a wherein side that thermal head is installed on heating block, be convenient to install or change thermal head.
The plate that presses described in the utility model is the insulation thermal insulation barriers.
The beneficial effects of the utility model are:
The utility model thermostatic type large scale touch-screen hot press, overcome many defectives of traditional constant-temperature pressure head mechanism, be skillfully constructed, can conveniently regulate pressure head flatness, installation and change pressure head, high efficiency can well satisfy the demand of automated production.Simultaneously, this hot press can effectively be avoided the overheated and distortion that produces of parts in the course of the work, extends the service life of parts.
(1) overcome the flatness governor motion defective distant apart from pressure head in the prior art, because the flatness governor motion directly is connected with thermal head, adopt positive tooth adjustment screw and anti-tooth to adjust the mode that screw combines, according to requirements heating block is strained or held out against, simple to operate, and pressure head overall structure rigidity is strengthened, and is difficult for deforming.
(2) be processed with specially a plurality of anti-deformation grooves on heating block, therefore, the internal stress of heating block under high temperature eliminated timely and effectively, further prevents the heating block distortion, makes pressure head more durable.
(3) be designed with sufficient space between heating block and power drive mechanism, and middle contact-making surface is very little; when heating block during at hot operation; temperature is difficult to conduct to guide rail, floating junction and cylinder, thereby guard block is not burned, and effectively extends the service life of parts.
(4) thermal head is arranged on and is positioned at heating block wherein on the integral installation face of a side, and connect by securing member, therefore, in the process of this constant-temperature hot press of assembling, the operator directly operates in equipment one side and gets final product, replacing for pressure head is also so, and is convenient and swift, further enhances productivity.In addition, can avoid the damage of structure on pressure head, extend the service life of pressure head.
The specific embodiment
In order to make the purpose of this utility model, technical scheme and advantage clearer, below in conjunction with drawings and Examples, the utility model is further elaborated.Should be appreciated that specific embodiment described herein only in order to explaining the utility model, and be not used in restriction the utility model.
Below in conjunction with concrete accompanying drawing, realization of the present utility model is described in detail.
The specific embodiment of the present utility model such as Fig. 2-shown in Figure 4, a kind of thermostatic type large scale touch-screen hot press, comprise cylinder 2, guide rail 3, thermal insulation board 9, be provided with the heating block 4 of heat-generating pipe 6 and be fixed in thermal head 1 on heating block 4 by securing member, heating block 4 tops are provided with coupled flatness governor motion, are provided with the adjusting play between heating block 4 and flatness governor motion.
In the present embodiment, the flatness governor motion comprises flatness adjustable plate 7 and set screw, is specially; Flatness adjustable plate 7 is provided with the positive tooth set screw 11 of a plurality of held out against heating blocks 4 that are evenly arranged along its length direction, and the front and back of each positive tooth set screw 11 respectively are provided with the anti-tooth set screw 12 that can strain heating block 4; Accordingly, the horizontal top surface of heating block 4 is provided with many group screw holes.When needs are adjusted the flatness of heating block 4, only need to be with anti-tooth set screw 12 by the tension of the through hole on flatness adjustable plate 7 heating block 4, perhaps withstand heating block with positive tooth set screw 11 by the thread on flatness adjustable plate 7 and get final product, simple to operation.
Heating block 4 is provided with a plurality of anti-deformation grooves 13 that are evenly arranged along its length direction, and each anti-deformation groove 13 runs through the width of described heating block 4.Be provided with heat insulation support piece 10 between flatness adjustable plate 7 and thermal insulation board 9.The heat insulation support piece is fixedly connected with flatness adjustable plate 7 and thermal insulation board 9 respectively at two ends Shang Xia 10, and thermal insulation board 9 fixes with the transfer block 14 of being located at cylinder 2 belows, is provided with floating junction 5 between cylinder 2 and transfer block 14.Heat insulation support piece 10 comprises two support units, and two support unit intervals are arranged, are close to respectively the two ends of flatness adjustable plate 7.Heating block 4 comprises body, body top is to its width bending, form an integral installation face that runs through heating block 4 length in the inboard corresponding with the body overbending direction of body bottom, thermal head 1 is fixed on integral installation face by the plate 8 that presses that is positioned at thermal head 1 outside.Press plate 8 and be the insulation thermal insulation barriers.Pressing plate 8 is provided with a plurality of along the spaced installing hole of its length direction.
The above embodiments are only preferred embodiment of the present utility model, can not limit interest field of the present utility model with this, and therefore, the equivalent variations according to the utility model claim is done still belongs to the scope that the utility model is contained.