CN216443941U

CN216443941U - Thermal contraction machine with uniform contraction and adjustable contraction time

Info

Publication number: CN216443941U
Application number: CN202122708305.6U
Authority: CN
Inventors: 周松茂
Original assignee: Jinhu Shengbaiwei Machinery Co ltd
Current assignee: Jinhu Shengbaiwei Machinery Co ltd
Priority date: 2021-11-06
Filing date: 2021-11-06
Publication date: 2022-05-06
Anticipated expiration: 2031-11-06

Abstract

The utility model discloses a thermal shrinking machine with uniform shrinkage and adjustable shrinkage time, which comprises a base, wherein a heating box is arranged at the top end of the base, a conveying roller way is arranged at the bottom in the heating box, a transmission cavity is formed in the top of the base, a supporting bridge plate is arranged in the middle of the top of the transmission cavity, and heating calandria are arranged at the top of the supporting bridge plate, the top in the heating box and two inner side walls of the heating box; two heat insulation boxes are sleeved on the outer side of the conveying roller way, a transmission assembly is arranged between the bottoms of the two heat insulation boxes, and a lifting grid is arranged between the two heat insulation boxes and above the conveying roller way; the motor chamber has been seted up to the bottom in the base, and motor intracavity portion one side is provided with the fan, and the heat insulating box outside cover is equipped with the air supply pipeline, and the air supply pipeline alternates the base and keeps being connected with the fan. Has the advantages that: but through setting up the heat-insulating box of automatically regulated width and state of opening and shutting, can carry out timely regulation according to the product thermal contraction situation, carry out thermal isolation to the product to realize heating and shrink time's control.

Description

Thermal contraction machine with uniform contraction and adjustable contraction time

Technical Field

The utility model relates to the technical field of heat shrinkers, in particular to a heat shrinker which has uniform shrinkage and adjustable shrinkage time.

Background

A heat shrinking machine is also called as a shrinking machine, a heat shrinking packaging machine is one of the more advanced packaging methods in the current market, a shrinking film is wrapped outside a product or a packaging piece, the product or the packaging piece is tightly wrapped by the shrinking film through heating, the appearance of the product is fully displayed, the marketability of the product is improved, and the attractiveness and the value feeling are increased. The heat shrinkable machine is widely applied to package of articles such as glass bottles, foaming adhesives, paper boxes, toys, electronics, electrical appliances, stationery, books, phonograph records, hardware tools, daily necessities, medicines, cosmetics, beverages, fruits, commemorative labels and the like.

When the existing heat shrinker packs materials, the materials are heated by one heating pipe which is directly arranged in a furnace chamber, the materials are heat shrunk by the heating pipe in a heating chamber, but the packing is not neat and compact enough due to the uneven arrangement position of the materials and the temperature in the heating chamber, and the packing effect is influenced; in order to improve the packaging quality, the existing heat shrinker can also add a blower to improve the heating effect through hot air, but the problem of uneven heating can not be effectively improved. In addition, because different products need different heating duration when being packaged, the existing heat shrinker can not effectively control the heating duration to realize the regulation and control of the shrinkage time.

For example, patent No. CN209192412U discloses a heat shrink packaging machine, which increases the size of the air outlet of the blower to make the wind power larger and more uniform, thereby achieving the best shrink effect; secondly, the operation panel of the electric cabinet is obliquely arranged, so that the operation is more convenient and more humanized. But this patent only increases the efficiency and the effect of product membrane shrink through increaseing and changing the air output, nevertheless is unfavorable for guaranteeing the stability of product on conveying mechanism, and can not be according to the length of time of the nimble control shrink of different products.

An effective solution to the problems in the related art has not been proposed yet.

SUMMERY OF THE UTILITY MODEL

Aiming at the problems in the related art, the utility model provides a heat shrinker which has uniform shrinkage and adjustable shrinkage time, so as to overcome the technical problems in the prior related art.

Therefore, the utility model adopts the following specific technical scheme:

a thermal contraction machine with uniform contraction and adjustable contraction time comprises a base, wherein a heating box is arranged at the top end of the base, a conveying roller way is arranged at the bottom in the heating box, a transmission cavity is formed in the top of the base, a supporting bridge plate is arranged in the middle of the top of the transmission cavity, and heating pipe arrays are arranged on the top of the supporting bridge plate, the top in the heating box and two inner side walls; two heat insulation boxes are sleeved on the outer side of the conveying roller way, a transmission assembly is arranged between the bottoms of the two heat insulation boxes, and a lifting grid is arranged between the two heat insulation boxes and above the conveying roller way; a motor cavity is formed in the bottom in the base, a fan is arranged on one side in the motor cavity, an air supply pipeline is sleeved on the outer side of the heat insulation box, and the air supply pipeline penetrates through the base and is connected with the fan; the front of the heating box is provided with an operation panel.

Furthermore, in order to enable the two heat insulation boxes to perform synchronous opening and closing movement through the transmission assembly at the bottom and realize opposite movement at two sides of the lifting grating, the isolation between the internal heating gas and the external heating gas can be realized in a closed state after the two heat insulation boxes are close to each other, the heat shrinkage time is controlled, the supporting bridge plate is positioned in the middle of the top of the base, the lifting grating is positioned right above the supporting bridge plate, and the two heat insulation boxes are symmetrical by taking the supporting bridge plate as a central shaft; the transmission assembly is including setting up the connection bottom plate of keeping away from support bridge plate one side in the heat insulation box bottom, transmission intracavity bottom intermediate position is provided with swivel connected coupler, the swivel connected coupler both sides all are provided with the trace and keep swing joint, the trace other end keeps swing joint with the connection bottom plate bottom, swivel connected coupler runs through to motor chamber internal connection for T shape structure and its bottom has driven gear, motor intracavity bottom one side is provided with driving motor, the driving motor top is provided with the drive gear with driven gear matched with.

Further, can guarantee the stability of vertical direction for the lift grid, prevent that it from taking place the skew at the lift in-process, the horizontal pole of character cut in bas-relief shape can be when the lift grid is in the minimum state simultaneously, guarantee that the horizontal pole does not take place to contact with the roll table and influence the transport of product, the positive intermediate position with the back in rollgang top all is provided with the spacing post that a plurality of equidistance were arranged, the lift grid openly all sets up a plurality of and spacing post matched with spacing holes with the back, the lift grid is one-way latticed and the horizontal pole is character cut in bas-relief structure, the horizontal pole of lift grid and the roll table of rollgang crisscross setting in proper order.

Further, in order to make the rollgang form to support the heat insulation box spacing, ensure that the heat insulation box is in the horizontality all the time under, improve the stability of heat insulation box, the rollgang openly all is provided with the support slide rail with the back, two inside wall bottoms of heat insulation box all seted up with support slide rail matched with support the spout.

Further, in order to make the lift grid slide in the direction spout is inside through the guide post, realize going up and down, according to the incline direction in addition, when can guaranteeing that two hot box are close to the laminating, the lift grid just is in the rollgang top, and rise when two hot box keep away from each other, form stable cooperation, lift grid both sides top all is provided with the guide post, two inside wall tops of hot box all seted up with guide post matched with direction spout, the direction spout is slope structure, the incline direction is reduced to the other end by the one end that is close to the support bridge plate gradually.

Further, in order to make the air supply pipeline form the blowing on four sides, the product is uniformly heated, the heating is ensured to be uniform, the air inlet amount in the running process of the fan is ensured through the ventilation cover plate, the air supply pipeline is sequentially connected by the annular pipelines arranged in multiple groups of equal distances, the air blowing openings are formed in the annular parts of the air supply pipeline, and the ventilation cover plate is arranged on the front side of the motor cavity.

The utility model has the beneficial effects that:

1. by arranging the heat insulation box capable of automatically adjusting the width and the opening and closing state, the product can be timely adjusted according to the heat shrinkage condition of the product, and the product is thermally isolated, so that the control of heating and shrinkage time is realized, the heat shrinkage efficiency and quality of the product are ensured, and the bonding effect is prevented from being influenced by long-time heating; the heating pipes and the air supply pipelines which are arranged annularly can blow and heat four sides of a product simultaneously, so that the uniform heating is ensured, and the thermal shrinkage effect is improved; set up the lift grid that can the hot box linkage simultaneously, can realize the lift adjustment of product to reduce the area of contact of product and device, further guarantee to be heated evenly, guarantee the stability of product thermal contraction process simultaneously.

2. The multiple groups of limiting columns are arranged at the top of the conveying roller way, so that the stability of the lifting grid can be ensured, and the inclination and the deviation in the lifting process can be prevented; through the support slide rails arranged on the two sides of the conveying roller way, the stability of the heat insulation box can be ensured, and the heat insulation box is always in a horizontal moving state.

3. The utility model has the advantages of reasonable structure, simple control, high automation degree and convenient maintenance, and can greatly improve the heat shrinkage effect of the product and improve the production efficiency.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.

FIG. 1 is a schematic front view of a thermal contraction machine capable of controlling contraction time and shrinking uniformly according to an embodiment of the present invention;

FIG. 2 is a schematic cross-sectional view of a heating chamber of a thermal contraction machine capable of controlling contraction time and uniformly contracting in accordance with an embodiment of the present invention;

FIG. 3 is a schematic diagram of a base and a top structure of a thermal contraction machine capable of controlling contraction time and shrinking uniformly according to an embodiment of the present invention;

FIG. 4 is a schematic cross-sectional view of a base of a thermal contraction machine capable of controlling contraction time and shrinking uniformly according to an embodiment of the present invention;

FIG. 5 is a schematic diagram of a thermal insulation box and a transmission assembly in a thermal contraction machine capable of controlling contraction time and shrinking uniformly according to an embodiment of the present invention;

FIG. 6 is a schematic diagram of a construction of an elevating grid in a thermal contraction machine capable of controlling contraction time and shrinking uniformly according to an embodiment of the present invention;

FIG. 7 is a side cross-sectional view of a heat shrinker having uniform shrinkage and adjustable shrinkage time in accordance with an embodiment of the present invention;

FIG. 8 is a schematic structural diagram of a conveying roller way and a lifting grid in a thermal contraction machine capable of controlling contraction time and contracting uniformly according to an embodiment of the utility model;

fig. 9 is a schematic structural diagram of an air supply duct in a heat shrinking machine with uniform shrinkage and controllable shrinkage time according to an embodiment of the utility model.

In the figure:

1. a base; 2. a heating box; 3. a rollgang; 4. a transmission cavity; 5. supporting the bridge plate; 6. heating the calandria; 7. a heat insulation box; 8. a transmission assembly; 801. connecting the bottom plate; 802. a rotating connector; 803. a linkage rod; 804. a driven gear; 805. a drive motor; 806. a drive gear; 9. a lifting grid; 10. a motor cavity; 11. a fan; 12. an air supply duct; 13. a control panel; 14. a limiting column; 15. a limiting hole; 16. supporting the slide rail; 17. a support chute; 18. a guide post; 19. a guide chute; 20. an air blowing port; 21. a vent flap.

Detailed Description

For further explanation of the various embodiments, the drawings which form a part of the disclosure and which are incorporated in and constitute a part of this specification, illustrate embodiments and, together with the description, serve to explain the principles of operation of the embodiments, and to enable others of ordinary skill in the art to understand the various embodiments and advantages of the utility model, and, by reference to these figures, reference is made to the accompanying drawings, which are not to scale and wherein like reference numerals generally refer to like elements.

According to the embodiment of the utility model, the heat shrinker which has uniform shrinkage and can regulate and control the shrinkage time is provided.

Referring to the drawings and the detailed description, the utility model is further explained, as shown in fig. 1-9, the heat shrinker with uniform shrinkage and adjustable shrinkage time according to the embodiment of the utility model comprises a base 1, a heating box 2 is arranged at the top end of the base 1, a conveying roller bed 3 is arranged at the bottom in the heating box 2, a transmission cavity 4 is arranged at the top of the base 1, a supporting bridge plate 5 is arranged in the middle of the top of the transmission cavity 4, and heating calandria 6 are arranged at the top of the supporting bridge plate 5, the top of the heating box 2 and two inner side walls; two heat insulation boxes 7 are sleeved on the outer side of the conveying roller way 3, a transmission assembly 8 is arranged between the bottoms of the two heat insulation boxes 7, and a lifting grid 9 is arranged between the two heat insulation boxes 7 and above the conveying roller way 3; a motor cavity 10 is formed in the bottom of the base 1, a fan 11 is arranged on one side inside the motor cavity 10, an air supply pipeline 12 is sleeved outside the heat insulation box 7, and the air supply pipeline 12 penetrates through the base 1 and keeps connected with the fan 11; the heating cabinet 2 is provided with a control panel 13 on the front.

By means of the technical scheme, the heat insulation box 7 capable of automatically adjusting the width and the opening and closing state can be timely adjusted according to the heat shrinkage condition of the product to thermally isolate the product, so that the control of heating and shrinkage time is realized, the heat shrinkage efficiency and quality of the product are ensured, and the gluing effect is prevented from being influenced by long-time heating; the heating pipes 6 and the air supply pipelines 12 which are arranged annularly can blow and heat four sides of a product simultaneously, so that the uniform heating is ensured, and the heat shrinkage effect is improved; the lifting grid 9 capable of being linked with the heat insulation box 7 is arranged, so that the lifting adjustment of the product can be realized, the contact area between the product and the device is reduced, the uniform heating is further ensured, and the stability of the thermal shrinkage process of the product is ensured. The utility model has the advantages of reasonable structure, simple control, high automation degree and convenient maintenance, and can greatly improve the heat shrinkage effect of the product and improve the production efficiency.

In one embodiment, for the supporting bridge plate 5, the supporting bridge plate 5 is located at the middle position of the top of the base 1, the lifting grid 9 is located right above the supporting bridge plate 5, and the two heat insulation boxes 7 are symmetrical by taking the supporting bridge plate 5 as a central axis; the transmission assembly 8 comprises a connecting bottom plate 801 arranged at the bottom of the heat insulation box 7 far away from one side of the supporting bridge plate 5, a rotary connecting piece 802 is arranged at the middle position of the bottom in the transmission cavity 4, two sides of the rotary connecting piece 802 are both provided with a linkage rod 803 and are movably connected, the other end of the linkage rod 803 is movably connected with the bottom end of the connecting bottom plate 801, the rotary connecting piece 802 is of a T-shaped structure, the bottom end of the rotary connecting piece 802 penetrates through the motor cavity 10 and is connected with a driven gear 804, one side of the bottom in the motor cavity 10 is provided with a driving motor 805, the top of the driving motor 805 is provided with a driving gear 806 matched with the driven gear 804, thereby leading the two heat insulation boxes 7 to carry out synchronous opening and closing movement through the transmission component 8 at the bottom, realizing the opposite movement at the two sides of the lifting grid 9, the insulation of the internal and external heating gases can be realized in a closed state after the two parts are close to each other, and the time of thermal contraction is controlled.

In an embodiment, for above-mentioned rollgang 3, rollgang 3 top openly all is provided with the spacing post 14 that a plurality of equidistance were arranged with the intermediate position at the back, lifting grid 9 openly all sets up a plurality of spacing holes 15 with spacing post 14 matched with the back, lifting grid 9 is one-way latticed and the horizontal pole is character cut in bas-relief structure, lifting grid 9's horizontal pole sets up with rollgang 3's roll table crisscross in proper order, thereby lifting grid 9 can guarantee vertical direction's stability, prevent that it from taking place the skew at the lift in-process, the horizontal pole of character cut in bas-relief simultaneously can be when lifting grid 9 is in the minimum, guarantee that the horizontal pole does not take place to contact with the roll table and influence the transport of product.

In an embodiment, for the above roller conveyor 3, the front and back of the roller conveyor 3 are provided with the supporting slide rails 16, and the bottom of the two inner side walls of the heat insulation box 7 are provided with the supporting slide grooves 17 matched with the supporting slide rails 16, so that the roller conveyor 3 supports and limits the heat insulation box 7, and the heat insulation box 7 is ensured to be always in a horizontal state, thereby improving the stability of the heat insulation box 7.

In an embodiment, for above-mentioned lift grid 9, lift grid 9 both sides top all is provided with guide post 18, the guide chute 19 with guide post 18 matched with is all seted up at two inside wall tops of heat-insulating box 7, guide chute 19 is the slope structure, the incline direction is reduced to the other end gradually by the one end that is close to support bridge plate 5, thereby make lift grid 9 can slide in guide chute 19 inside through guide post 18, realize going up and down, according to the incline direction, can guarantee that two heat-insulating boxes 7 are close to when laminating in addition, lift grid 9 just is in rollgang 3 top, and rise when two heat-insulating boxes 7 keep away from each other, form stable cooperation.

In an embodiment, for the air supply pipeline 12, the air supply pipeline 12 is formed by sequentially connecting a plurality of groups of annular pipelines arranged at equal intervals, and the air blowing ports 20 are arranged in the annular pipelines, and the ventilation cover plate 21 is arranged on the front surface of the motor cavity 10, so that the air supply pipeline 12 blows air on four sides to uniformly heat the product, ensure uniform heating, and ensure the air intake of the fan 11 in the operation process through the ventilation cover plate 21.

For the convenience of understanding the technical solutions of the present invention, the following detailed description will be made on the working principle or the operation mode of the present invention in the practical process.

In practice, the product wrapped with thermoplastic film is placed at the inlet of the roller conveyor 3, kept centred inside the heating box 2. At this moment, the heating calandria 6 inside the heating box 2 and the fan 11 are both in an operation state, heat is guaranteed, the two heat insulation boxes 7 are in a close fit state, the lifting grid 9 is just positioned at the top of the conveying roller way 3, and the cross rod cannot interfere in the transportation of the conveying roller way 3 to products. When the product slides to the middle position, the driving motor 805 operates to drive the driving gear 806 to rotate, and in turn drives the driven gear 804 and the rotating connecting member 802 to rotate, at this time, the two linking rods 803 move towards two sides and push the connecting bottom plate 801 to move towards two sides, that is, the two heat insulation boxes 7 start to separate from each other. In the separation process, the guide post 18 slides to a high position at the lowest position of the guide chute 19 to drive the lifting grid 9 to vertically rise, meanwhile, the cross rod starts to leave the conveying roller way 3 and contacts with the products, and the products leave the conveying roller way 3 after gradually rising until the heat insulation box 7 moves to the end. At this time, the product is located in the middle of the air supply pipeline 12 and the four groups of heating calandria 6, the four sides of the product are heated to carry out heat shrink packaging of the film, after the preset time, the driving motor 805 is driven reversely until the two heat insulation boxes 7 are attached to complete heat insulation, and the heat shrink of the product is stopped. The operation is completed.

In conclusion, by means of the technical scheme, the heat insulation box 7 capable of automatically adjusting the width and the opening and closing state is arranged, so that timely adjustment can be performed according to the heat shrinkage condition of the product, the product can be thermally isolated, the heating and shrinkage time can be controlled, the heat shrinkage efficiency and quality of the product can be guaranteed, and the bonding effect can be prevented from being influenced by long-time heating; the heating pipes 6 and the air supply pipelines 12 which are arranged annularly can blow and heat four sides of a product simultaneously, so that the uniform heating is ensured, and the heat shrinkage effect is improved; the lifting grid 9 capable of being linked with the heat insulation box 7 is arranged, so that the lifting adjustment of the product can be realized, the contact area between the product and the device is reduced, the uniform heating is further ensured, and the stability of the thermal shrinkage process of the product is ensured. The multiple groups of limiting columns 14 are arranged at the top of the conveying roller way 3, so that the stability of the lifting grid 9 can be ensured, and the inclination and the deviation in the lifting process can be prevented; through the support slide rails 16 arranged on the two sides of the conveying roller way 3, the stability of the heat insulation box 7 can be ensured, and the heat insulation box is always in a horizontal moving state. The utility model has the advantages of reasonable structure, simple control, high automation degree and convenient maintenance, and can greatly improve the heat shrinkage effect of the product and improve the production efficiency.

In the present invention, unless otherwise expressly specified or limited, the terms "mounted," "disposed," "connected," "secured," "screwed" and the like are to be construed broadly, e.g., as meaning fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; the terms may be directly connected or indirectly connected through an intermediate, and may be communication between two elements or interaction relationship between two elements, unless otherwise specifically limited, and the specific meaning of the terms in the present invention will be understood by those skilled in the art according to specific situations.

The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the utility model, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.

Claims

1. The utility model provides a shrink even, can regulate and control thermal contraction machine of shrink time, includes base (1), and this base (1) top is provided with heating cabinet (2), and the bottom is provided with rollgang (3), its characterized in that in this heating cabinet (2):

a transmission cavity (4) is formed in the top of the base (1), a supporting bridge plate (5) is arranged in the middle of the top of the transmission cavity (4), and heating pipe banks (6) are arranged on the top of the supporting bridge plate (5), the inner top of the heating box (2) and two inner side walls of the heating box;

two heat insulation boxes (7) are sleeved on the outer side of the conveying roller way (3), a transmission assembly (8) is arranged between the bottoms of the two heat insulation boxes (7), and a lifting grid (9) is arranged between the two heat insulation boxes (7) and above the conveying roller way (3);

a motor cavity (10) is formed in the bottom of the base (1), a fan (11) is arranged on one side in the motor cavity (10), an air supply pipeline (12) is sleeved on the outer side of the heat insulation box (7), and the air supply pipeline (12) penetrates through the base (1) to be connected with the fan (11);

the front surface of the heating box (2) is provided with an operation panel (13).

2. The machine for thermal contraction with uniform contraction and controllable contraction time according to claim 1, wherein the supporting bridge plate (5) is located at the middle position of the top of the base (1), the lifting grid (9) is located right above the supporting bridge plate (5), and the two heat insulation boxes (7) are symmetrical by taking the supporting bridge plate (5) as a central axis.

3. The heat shrinking machine with uniform shrinkage and controllable shrinkage time as claimed in claim 2, characterized in that the transmission component (8) comprises a connecting bottom plate (801) arranged at the bottom of the heat insulation box (7) far away from one side of the supporting bridge plate (5), a rotary connecting piece (802) is arranged in the middle of the bottom in the transmission cavity (4), two sides of the rotary connecting piece (802) are both provided with linkage rods (803) which are movably connected, the other end of the linkage rod (803) is movably connected with the bottom end of the connecting bottom plate (801), the rotary connecting piece (802) is of a T-shaped structure, the bottom end of the rotary connecting piece penetrates through the motor cavity (10) and is connected with a driven gear (804), a driving motor (805) is arranged on one side of the bottom in the motor cavity (10), and a driving gear (806) matched with the driven gear (804) is arranged at the top of the driving motor (805).

4. The thermal contraction machine with uniform contraction and adjustable contraction time according to claim 1, wherein a plurality of equidistantly arranged limiting columns (14) are arranged at the middle positions of the front surface and the back surface of the top end of the roller conveyor (3), a plurality of limiting holes (15) matched with the limiting columns (14) are formed in the front surface and the back surface of the lifting grid (9), the lifting grid (9) is in a one-way grid shape, the cross rods of the lifting grid (9) are in a concave structure, and the cross rods of the lifting grid (9) and the roller conveyor (3) are sequentially arranged in a staggered manner.

5. The heat shrinking machine with uniform shrinkage and adjustable shrinkage time as claimed in claim 4, wherein the front and back of the roller conveyor (3) are provided with supporting slide rails (16), and the bottom of the two inner side walls of the heat insulation box (7) are provided with supporting slide grooves (17) matched with the supporting slide rails (16).

6. The heat shrinking machine with uniform shrinkage and adjustable shrinkage time as claimed in claim 5, wherein the top ends of both sides of the lifting grid (9) are provided with guide posts (18), and the top of both inner side walls of the heat insulation box (7) are provided with guide chutes (19) matched with the guide posts (18).

7. A machine for uniform shrinkage and controlled shrinkage time according to claim 6, characterized in that the guide runners (19) are of an inclined configuration, the direction of inclination decreasing from one end near the supporting bridge (5) to the other.

8. The heat shrinking machine with uniform shrinkage and adjustable shrinkage time as claimed in claim 1, wherein the air supply pipes (12) are sequentially connected by a plurality of groups of annular pipes arranged at equal intervals, each annular pipe is provided with an air blowing opening (20), and the front surface of the motor cavity (10) is provided with a ventilation cover plate (21).