阅读说明：本技术 一种使用方便的物料带框加热烘干装置 (Convenient to use's material area frame heating drying device ) 是由 张增俊 于 2021-09-10 设计创作，主要内容包括：本发明属于烘干设备技术领域,尤其涉及一种使用方便的物料带框加热烘干装置。本发明在烘干机主体上设置电加热器、进出料口、开口盖板、封口板、凸出板、复位轨道板单元、居中滑动板单元、向外拉动柱单元以及限位开槽单元。本发明具有以下优点：第一、物料带框一起加热,加热位置仍然位于装置内中心部分,加热强度足够,而且作为物料平台的居中滑动板单元,可以在进出料时被向外拉动至与进出料口抵住接触,框体可以滑到居中滑动板单元上,避免了相对远距离的搬动操作的费力问题；第二、居中滑动板单元的滑动操作简单方便、精准可靠,滑动前、滑动后的固定状态位置稳定,不易意外滑动。(The invention belongs to the technical field of drying equipment, and particularly relates to a heating and drying device with a frame for materials, which is convenient to use. The dryer body is provided with an electric heater, a feed inlet, a discharge outlet, an opening cover plate, a sealing plate, a protruding plate, a reset track plate unit, a middle sliding plate unit, an outward pulling column unit and a limiting slotting unit. The invention has the following advantages: the material is heated together with the frame, the heating position is still positioned in the central part in the device, the heating intensity is enough, the material is used as a central sliding plate unit of a material platform and can be pulled outwards to be abutted against and contacted with a material inlet and a material outlet when feeding and discharging, and the frame body can slide onto the central sliding plate unit, so that the problem of labor waste of relatively long-distance moving operation is avoided; second, the slip operation of sliding plate unit placed in the middle is simple and convenient, accurate reliable, and the fixed state position before the slip, after the slip is stable, and difficult unexpected slip.)

1. The utility model provides a convenient to use's material area frame heating drying device, includes drying-machine main part (11), electric heater (12), business turn over material mouth (13), opening apron (14) to and seal board (15), its characterized in that: the material frame structure is characterized by further comprising a reset track plate unit (1) arranged on the inner bottom surface of the dryer body (11), a centering sliding plate unit (2) arranged on the reset track plate unit (1) and used for placing a material frame (a), an outward pulling column unit (3) arranged on the centering sliding plate unit (2), and a limiting slotting unit (4) arranged on the inner bottom surface of the material inlet/outlet (13) and used for keeping the centering sliding plate unit (2) in an outward pulling state in a clamping mode of the inner side of the outward pulling column unit (3).

2. The convenient-to-use material heating and drying device with the frame as claimed in claim 1, is characterized in that: the reset track plate unit (1) comprises a bottom plate (101) arranged on the inner bottom surface of the dryer body (11), a vertical plate (102) arranged on the upper surface of the bottom plate (101) and far away from one side position of the material inlet/outlet (13), a slotted groove (103) for sliding arranged on the upper surface of the bottom plate (101) and used for inserting and installing the centered sliding plate unit (2), and a tension spring (104) arranged on the vertical plate (102) and used for pulling the centered sliding plate unit (2) inwards.

3. The convenient-to-use material heating and drying device with the frame as claimed in claim 2, is characterized in that: the centering sliding plate unit (2) comprises a sliding column (201) arranged on the sliding open groove (103), a supporting plate (202) arranged on the sliding column (201), a frame body blocking plate (203) arranged on the upper surface of the supporting plate (202) and far away from one side of the material inlet and outlet (13), and a thread groove (204) arranged on the side surface, close to the material inlet and outlet (13), of the supporting plate (202) and used for installing the outward pulling column unit (3).

4. The convenient-to-use material heating and drying device with the frame as claimed in claim 3, is characterized in that: the centering sliding plate unit (2) further comprises side baffles (205) respectively arranged at two sides of the frame body baffle plate (203), a mounting ring (206) arranged on the side surface of the supporting plate (202) and used for mounting the tension spring (104), and balls (207) arranged on the lower end surface of the sliding column (201).

5. The convenient-to-use material heating and drying device with the frame as claimed in claim 3, is characterized in that: the outward pulling column unit (3) comprises a threaded column (301) which is arranged on the threaded groove (204) and inserted into the limiting slotted unit (4), an elastic circular ring (302) which is arranged on the threaded column (301) and used for receiving the clamping limiting effect at the limiting slotted unit (4), and a holding column (303) which is arranged in the elastic circular ring (302) and used for increasing the supporting strength of the elastic circular ring (302) in the compression direction.

6. The convenient-to-use material heating and drying device with the frame as claimed in claim 5, is characterized in that: spacing fluting unit (4) is including setting up in business turn over material mouth (13) bottom with side groove (401) between drying-machine main part (11) the surface sets up side groove (401) with be used for inserting the installation between drying-machine main part (11) medial surface pore (402) of screw thread post (301), and set up in side groove (401) on the bottom surface and be used for in two elasticity posts (403) of the spacing operation of block are carried out to the inboard of elasticity ring (302).

7. The convenient-to-use material heating and drying device with the frame as claimed in claim 6, is characterized in that: the limiting slotting unit (4) further comprises a cover plate (404) which is arranged on the side groove (401) and used for pressing down to limit and fix the elastic circular ring (302), and a screw (405) which is arranged on the cover plate (404) and penetrates downwards to install the elastic column (403).

8. The convenient-to-use material heating and drying device with the frame as claimed in claim 7, is characterized in that: the limiting slotting unit (4) further comprises an arc-shaped groove (406) for positioning, which is arranged on the inner side surface of the side groove (401) and used for clamping and fixing the retracted elastic circular ring (302), and an arc-shaped groove (407) for operation, which is arranged on the outer side edge of the cover plate (404) and used for making a space for outward pulling of the elastic circular ring (302).

9. The convenient-to-use material heating and drying device with the frame as claimed in claim 6, is characterized in that: the lower surface of the sealing plate (15) is also provided with a protruding plate (5) which is used for pushing back the elastic ring (302) inwards and blocking the opening at the outer side of the side groove (401).

10. The convenient-to-use material heating and drying device with the frame as claimed in claim 3, is characterized in that: the height of the upper surface of the supporting plate (202) is lower than that of the inner bottom surface of the material inlet and outlet (13).

Technical Field

The invention belongs to the technical field of drying equipment, and particularly relates to a heating and drying device with a frame for materials, which is convenient to use.

Background

The working of plastics generally all needs to carry out the stoving operation at the rear end of processing production process to guarantee the effect of stereotyping fast. The existing heating and drying device is mostly provided with a heating platform inside, plastic parts fall on the platform, and basic drying and shaping effects can be realized by depending on the upper side or the upper side and the electric heating device on the side edge.

On the other hand, when the heating drying device of this structure style used, the biggest trouble was exactly that a large amount of working of plastics need pour out earlier, picked up again and take away, and this is very time-consuming and laboursome, leads to the efficiency of whole heating drying operation to be carried over all the time.

Consequently, also appearing now and having let the drying device of working of plastics area frame heating, working of plastics product and frame push together promptly, pull out the framework after the heating again, just accomplished the heating stoving operation of this batch working of plastics, efficiency, convenient degree when this new drying device uses have obviously promoted by a wide margin.

However, the new drying apparatus also has the following problems: the weight of working of plastics product and frame is great together, and the heating platform often is located drying device's center again, keeps away from the feed inlet, so get the working of plastics product and frame together and put on heating platform and just need great power relatively, and the operation degree of difficulty is great.

Therefore, a heating drying device with a movable heating platform is urgently needed at present, so that when plastic part products and frames are taken and placed together, the heating platform is just positioned on the edge of the feeding hole, and more labor-saving and convenient taking and placing operations are guaranteed.

Patent publication number is CN 213147185U, and chinese utility model patent that bulletin day is 2021.05.07 discloses a drying device is used in processing of bamboo fiber plastic, including the stoving box, the bottom fixed mounting of stoving box has the support column, there is the chamber door that demountable installation is located stoving box one side at the top of support column, one side of chamber door is provided with control panel, the observation window is inlayed and installed to one side of control panel.

But the utility model discloses a drying device in, it is fixed that its "place the board subassembly", consequently treat that the stoving product is just very troublesome and low efficiency when getting to put, especially "place the board subassembly" and keep away from the open-ended inboard, just must operating personnel's hand stretch into by a wide margin, could get and put the material, this has the risk of overheated scald.

Disclosure of Invention

The invention provides a convenient-to-use heating and drying device for a material belt frame, which can achieve the purpose of convenient and efficient use of the material belt frame together in the heating and drying device by arranging an electric heater, a feed inlet and a discharge outlet, an opening cover plate, a sealing plate, a protruding plate, a reset track plate unit, a middle sliding plate unit, an outward pulling column unit and a limiting slotting unit on a dryer main body.

The technical scheme adopted by the invention for solving the problems is as follows: the utility model provides a convenient to use's material area frame heating drying device, includes the drying-machine main part, electric heater, advances discharge gate, opening apron to and seal the board, still including setting up reset track board unit on the drying-machine main part inner bottom surface, set up and be in reset on the track board unit and be used for laying the sliding plate unit placed in the middle of the material frame, set up and be in outside pulling post unit on the sliding plate unit placed in the middle, and set up and be in on the bottom surface in the advances discharge gate and through the mode of outside pulling post unit inboard block is in order to be used for keeping the spacing fluting unit of the outside pull-out state of sliding plate unit placed in the middle.

The further preferred technical scheme is as follows: the reset track board unit comprises a bottom board arranged on the inner bottom surface of the dryer body, a vertical board arranged on the upper surface of the bottom board and far away from the position of one side of the material inlet and the material outlet, a slotted groove for sliding arranged on the upper surface of the bottom board and used for inserting and installing the centered sliding board unit, and a tension spring arranged on the vertical board and used for pulling the centered sliding board unit inwards.

The further preferred technical scheme is as follows: the centered sliding plate unit comprises a sliding column arranged on the sliding open groove, a supporting plate arranged on the sliding column, a frame body blocking plate arranged on the upper surface of the supporting plate and far away from the position of one side of the material inlet/outlet, and a thread groove arranged on the side surface of the supporting plate close to the material inlet/outlet and used for installing the outward pulling column unit.

The further preferred technical scheme is as follows: the centered sliding plate unit further comprises side baffles arranged at two sides of the frame body blocking plate respectively, a mounting ring arranged on the side face of the supporting plate and used for mounting the tension spring, and balls arranged on the lower end face of the sliding column.

The further preferred technical scheme is as follows: the outward pulling column unit comprises a threaded column, an elastic circular ring and a holding column, wherein the threaded column is arranged on the threaded groove and inserted into the limiting slotting unit, the elastic circular ring is arranged on the threaded column and used for receiving the clamping limiting effect of the limiting slotting unit, and the holding column is arranged in the elastic circular ring and used for increasing the supporting strength of the elastic circular ring in the compression direction.

The further preferred technical scheme is as follows: spacing fluting unit is including setting up in the business turn over material mouth bottom with side groove between the drying-machine main part surface sets up side groove with be used for inserting the installation between the drying-machine main part medial surface the pore of screw thread post, and set up be in on the side inslot bottom and be used for the inboard of elasticity ring carries out two elasticity posts of the spacing operation of block.

The further preferred technical scheme is as follows: the limiting slotting unit further comprises a cover plate and a screw, wherein the cover plate is arranged on the side groove and used for pressing down to limit and fix the elastic circular ring, and the screw is arranged on the cover plate and penetrates downwards to install the elastic column.

The further preferred technical scheme is as follows: the limiting slotting unit further comprises an arc-shaped groove for waiting to be positioned, which is arranged on the inner side surface of the side groove and used for clamping and fixing the retracted elastic circular ring, and an arc-shaped groove for operation, which is arranged on the outer side edge of the cover plate and used for freeing space for the outward pulling action of the elastic circular ring.

The further preferred technical scheme is as follows: and the lower surface of the sealing plate is also provided with a protruding plate which is used for pushing back the elastic circular ring inwards and plugging the opening at the outer side of the side groove.

The further preferred technical scheme is as follows: the height of the upper surface of the supporting plate is lower than that of the inner bottom surface of the material inlet and outlet.

The invention has the following advantages: the material is heated together with the frame, the heating position is still positioned in the central part in the device, the heating intensity is enough, the material is used as a central sliding plate unit of a material platform and can be pulled outwards to be abutted against and contacted with a material inlet and a material outlet when feeding and discharging, and the frame body can slide onto the central sliding plate unit, so that the problem of labor waste of relatively long-distance moving operation is avoided; the sliding operation of the middle sliding plate unit is simple, convenient, accurate and reliable, the fixed state positions before and after sliding are stable, and accidental sliding is not easy to occur; thirdly, the materials in the frame have a shaking effect in a horizontal direction, so that piled materials can be relatively paved, and the problem of insufficient heating intensity at the center of the piled materials is avoided; fourthly, the whole heating and drying device is high in sealing performance, and the whole sliding structure of the material platform is not easy to be heated and baked.

Drawings

FIG. 1 is a schematic structural diagram of the present invention.

Fig. 2 is a schematic structural diagram of a reset track slab unit according to the present invention.

Fig. 3 is a schematic view of the position structure of the center slide plate unit in the present invention.

Fig. 4 is a schematic view of a position structure of the limiting slotting unit in the invention.

Fig. 5 is a schematic structural view of the position of the outward pulling pole unit in the state of not being pulled outward in the present invention.

Fig. 6 is a schematic view of the position structure of the elastic column in the present invention.

FIG. 7 is a schematic diagram of the position of the side groove of the present invention.

Fig. 8 is a schematic view of the position structure of the protruding plate in the present invention.

In the drawings, the reference numerals denote the following components: the dryer comprises a dryer body 11, an electric heater 12, a material inlet and outlet 13, an opening cover plate 14, a sealing plate 15, a reset track plate unit 1, a material frame a, a middle sliding plate unit 2, an outward pulling column unit 3, a limiting slotted unit 4, a bottom plate 101, a vertical plate 102, a slotted groove 103 for sliding, a tension spring 104, a sliding column 201, a supporting plate 202, a frame body blocking plate 203, a threaded groove 204, a side baffle 205, a mounting ring 206, a ball 207, a threaded column 301, an elastic circular ring 302, a holding column 303, a side groove 401, a pore channel 402, an elastic column 403, a cover plate 404, a screw 405, an arc-shaped groove 406 for standby, an arc-shaped groove 407 for operation and a protruding plate 5.

Detailed Description

The following description is only a preferred embodiment of the present invention and is not intended to limit the scope of the present invention.

Example (b): as shown in fig. 1 to 8, a material heating and drying device with frame convenient to use includes a dryer main body 11, an electric heater 12, a material inlet and outlet 13, an opening cover plate 14, and a sealing plate 15, and further includes a reset track plate unit 1 disposed on an inner bottom surface of the dryer main body 11, a middle sliding plate unit 2 disposed on the reset track plate unit 1 and used for placing a material frame a, an outward pulling column unit 3 disposed on the middle sliding plate unit 2, and a limit slot unit 4 disposed on an inner bottom surface of the material inlet and outlet 13 and used for keeping the middle sliding plate unit 2 in an outward pulled state by engaging with an inner side of the outward pulling column unit 3.

In this embodiment, the opening cover plate 14 is fixed together with the sealing plate 15, the opening cover plate 14 is relatively large and hinged on the outer side surface of the dryer main body 11, and the sealing plate 15 is used for blocking the material inlet and outlet 13 so as to ensure the sealing performance of the relatively high heating and drying device.

Wherein the returning track slab unit 1 pulls the center sliding plate unit 2 inward so that the center sliding plate unit 2 has a center normal state substantially right under the electric heater 12 to ensure that the material frame a has a relatively efficient and rapid heating and drying effect together with the material.

In addition, the inner side end of the outward pulling column unit 3 is connected with the middle sliding plate unit 2, the outer side end is located in the limiting slotted unit 4, so that the outer side end is pulled outward and fixed, the middle sliding plate unit 2 can be attached to the inner side surface of the dryer main body 11 and butted with the material inlet and outlet 13, the material frame a can be slid and pushed onto the middle sliding plate unit 2 from the material inlet and outlet 13 to complete the feeding operation, and correspondingly, the outer side end is pulled outward and fixed.

Therefore, the reset track plate unit 1, the middle sliding plate unit 2, the outward pulling column unit 3 and the limiting slotting unit 4 jointly form a controllable sliding heating platform, so that in the prior art, the distance of 20-30cm between the fixed heating platform and the material inlet and outlet is eliminated, the material frame is not required to be carried, but is fed in a sliding manner, and the labor is saved and the efficiency is high.

The reset track plate unit 1 comprises a bottom plate 101 arranged on the inner bottom surface of the dryer main body 11, a vertical plate 102 arranged on the upper surface of the bottom plate 101 and far away from the material inlet and outlet 13, a sliding slot 103 arranged on the upper surface of the bottom plate 101 and used for inserting and installing the centered sliding plate unit 2, and a tension spring 104 arranged on the vertical plate 102 and used for pulling the centered sliding plate unit 2 inwards.

In this embodiment, the bottom plate 101 is screwed on the inner bottom surface of the dryer body 11, and the sliding slots 103 are two in total, so that the central sliding plate unit 2 can be stably pulled outwards to slide and reset inwards to slide.

The centering sliding plate unit 2 includes a sliding column 201 disposed on the sliding open groove 103, a supporting plate 202 disposed on the sliding column 201, a frame blocking plate 203 disposed on the upper surface of the supporting plate 202 and at a position away from the material inlet/outlet 13, and a threaded groove 204 disposed on the side of the supporting plate 202 close to the material inlet/outlet 13 and used for mounting the outward pulling column unit 3.

In this embodiment, two of the four sliding columns 201 are located in one of the sliding slots 103, respectively, a material frame a is directly placed on the supporting plate 202, and when the middle sliding plate unit 2 is pulled outward, the frame blocking plate 203 blocks the material frame a to prevent it from falling.

The centering sliding plate unit 2 further includes side guards 205 respectively provided at both side positions of the frame body blocking plate 203, a mounting ring 206 provided on the side of the support plate 202 and used for mounting the tension spring 104, and balls 207 provided on the lower end surface of the sliding column 201.

In this embodiment, the balls 207 are stainless steel balls instead of the conventional rubber rollers, because the temperature inside the dryer body 11 is relatively high, and thus it is not suitable for a rubber material.

The outward pulling column unit 3 comprises a threaded column 301 which is arranged on the threaded groove 204 and inserted into the limiting slotting unit 4, an elastic circular ring 302 which is arranged on the threaded column 301 and used for receiving the clamping limiting effect at the limiting slotting unit 4, and a holding column 303 which is arranged in the elastic circular ring 302 and used for increasing the supporting strength of the elastic circular ring 302 in the compression direction.

In this embodiment, the more the threaded column 301 is screwed into the threaded groove 204, the initial position of the supporting plate 202 is relatively close to the material inlet/outlet 13, which makes the actual heating position of the material frame adjustable, and after all, the specification, size, shape and installation of the electric heater 12 are also variable.

Moreover, the distance that the outward pulling pole unit 3 is actually pulled out at the position of the limiting slotting unit 4 is fixed, but the distance between the side of the supporting plate 202 and the inner side of the dryer body 11 is unknown, so the final purpose of the screwing depth adjustment of the screw pole 301 is: elastic ring 302 is in on the spacing fluting unit 4, when being in the fixed state after the outside pulling, the backup pad 202 side just in time pastes drying-machine main part 11 medial surface, perhaps the gap between the two is very little, guarantees that material frame a can steadily follow slide on the feed inlet 13 goes up to on the backup pad 202.

And when the elastic ring 302 is on the limiting slotting unit 4 and is in a fixed state before pulling, the supporting plate 202 is located right below the center of the electric heater 12 as much as possible, so that relatively high heating strength is ensured.

In addition, the materials to be dried in the material frame a in the prior art are generally stacked from various extrusion and forming devices, so that the materials are in a mountain pile shape, residual heat is remained, the materials are inconvenient to be spread by hands, and the materials are directly sent into a dryer, so that the problem that the innermost part of the pile materials is not sufficiently heated can be caused.

In the present embodiment, since the central sliding plate unit 2 has a sliding and start-stop motion with the material frame a, the piled material is properly laid in the material frame a, so as to further improve the drying speed and efficiency of the subsequent heating.

Spacing fluting unit 4 is including setting up in business turn over material mouth 13 the bottom with side groove 401 between the drying-machine main part 11 surface, set up side groove 401 with be used for inserting the installation between the drying-machine main part 11 medial surface pore 402 of screw thread post 301, and set up be in on the bottom surface in side groove 401 and be used for the inboard of elasticity ring 302 carry out the spacing operation of block two elasticity posts 403.

In this embodiment, the minimum distance between the two elastic columns 403 made of rubber is smaller than the diameter of the elastic ring 302, so that the elastic ring 302 is clamped and limited by the two elastic columns 403 after passing over the two elastic columns, that is, the end point of the support plate 202 being pulled outwards, at this time, the support plate 202 is required to abut against the inner side surface of the dryer body 11, or the distance between the two is at most two or three centimeters, so as to ensure that the material frame a can stably slide onto the support plate 202 from the material inlet/outlet 13.

In addition, the elastic ring 302 is clamped inward on the opening 402, that is, in a normal state where the support plate 202 is not pulled, the support plate 202 is located substantially right below the electric heater 12.

Also, the corresponding gripping post 303 has two functions: first, the axial direction of the holding column 303 corresponds to the pressing direction of the elastic ring 302 by the elastic column 403, so that the holding column 303 enables the elastic ring 302 to have proper hardness strength on the premise of elastic deformation, thereby avoiding complete retraction and collapse of the elastic ring 302 after multiple uses, and avoiding the problem that the elastic ring 302 cannot be clamped by the two elastic columns 403; secondly, the grip column 303 is pulled outward until the elastic ring 302 passes over the two elastic columns 403, so that the grip column 303 is a force application part of the outward pulling column unit 3.

The limiting slotting unit 4 further comprises a cover plate 404 arranged on the side slot 401 and used for pressing down and limiting and fixing the elastic ring 302, and a screw 405 arranged on the cover plate 404 and penetrating downwards and mounting the elastic column 403.

In this embodiment, the cover plate 404 vertically limits the elastic ring 302 together with the inner bottom surface of the side groove 401, so as to prevent the elastic ring 302 from sliding horizontally and linearly only, and the screw 405 is provided with the cover plate 404 and the elastic column 403, so as to ensure that the elastic column 403 has the advantages of being fixed in position and preventing the elastic ring 302 from bending to both sides.

The limiting slotting unit 4 further comprises an arc-shaped groove 406 for waiting to be positioned, which is arranged on the inner side surface of the side groove 401 and is used for clamping and fixing the retracted elastic circular ring 302, and an arc-shaped groove 407 for operation, which is arranged on the outer side edge of the cover plate 404 and is used for making room for the outward pulling action of the elastic circular ring 302.

In this embodiment, the diameter of the arc-shaped slot 406 for standing is equal to the diameter of the elastic ring 302, so as to ensure that the elastic ring 302 has a unique and stable fixed state when standing still, otherwise, once the elastic ring 302 is deflected left and right, the supporting plate 202 is activated, which is dangerous.

The size of the arc-shaped slot 407 for operation is not particularly required, and the function is as follows: at the starting point of pulling the elastic circular ring 302, the operator's hand or the hook of other equipment hooks the holding column 303 outwards, at this time, the elastic circular ring 302 is exposed at the operation arc-shaped groove 407, and at this time, the other hand or the other hook hooks the exposed part, so that the whole elastic circular ring 302 can be pulled out to get over the two elastic columns 403, therefore, the setting of the operation arc-shaped groove 407 is to pull out and pull the elastic circular ring 302 to the position more conveniently.

The lower surface of the sealing plate 15 is also provided with a protruding plate 5 which is used for pushing back the elastic ring 302 inwards and blocking the opening at the outer side of the side groove 401. The height of the upper surface of the supporting plate 202 is lower than the height of the inner bottom surface of the material inlet/outlet 13.

In this embodiment, when the sealing plate 15 is closed rotationally, the protruding plate 5 enters the side groove 401 and strikes the elastic ring 302, so that the elastic ring 302 is pushed inward and passes over two elastic columns 403, at this time, a new material frame is already placed on the supporting plate 202 and the materials to be dried are carried, that is, when the sealing plate 15 is closed, the supporting plate 202 is synchronously reset to the position right below the electric heater 12, which is very efficient and convenient.

In addition, the protruding plate 5 can also properly seal the side groove 401, so as to ensure that the whole heating and drying device has a relatively high sealing degree.

Finally, the position of backup pad 202 sets up to be lower relatively, can guarantee that framework feeding slip operation is simple relatively, but ejection of compact operation has increased the action that needs framework appropriately to mention on one side, and two kinds of tradeoffs are each other, still let the feeding operation more convenient more suitable, avoid the stoving after-mentioned equipment just also to have stopped, ejection of compact operation is just so slow relatively just. Of course, it is preferable that the upper surface of the supporting plate 202 is flush with the inner bottom surface of the material inlet/outlet 13, or the height difference between the two is not enough to require the frame to be lifted properly.

The embodiments of the present invention have been described in detail with reference to the accompanying drawings, but the present invention is not limited to the above embodiments, and various modifications can be made within the knowledge of those skilled in the art without departing from the gist of the present invention. These are non-inventive modifications, which are intended to be protected by patent laws within the scope of the claims appended hereto.