Transverse sealing structure capable of preventing materials from being clamped

Abstract

The utility model discloses an anti-pinch transverse sealing structure, which relates to the field of transverse sealing structures, and comprises a fixed plate, a lifting component arranged on the fixed plate, a first transverse sealing component arranged on the lifting component, and a second transverse sealing component arranged on the fixed plate and arranged above the first transverse sealing component in parallel; according to the transverse sealing structure capable of preventing material clamping, the material clamping problem in the sealing process can be avoided, and therefore the sealing quality is ensured.

Description

TECHNICAL FIELD

[0001] The utility model relates to a cross seal structure field, concretely is a cross seal structure of preventing clamping material. BACKGROUND

[0002] In the packaging industry, the cross seal structure can seal the bag containing material horizontally, ensuring the sealing and integrity of the package. However, in the existing cross seal structure, the material is easy to accumulate at the sealing place during the sealing process, and the material cannot avoid in time and will be clamped between the cross seal plates. This not only affects the quality of the seal, causes the seal to be not tight, and is easy to leak, but also may damage the cross seal plate and shorten the service life of the equipment. SUMMARY

[0003] The utility model aims at providing a cross seal structure that prevents clamping material, which can avoid the clamping material problem during the sealing process, thereby ensuring the sealing quality.

[0004] The above-mentioned optimization structure of the utility model is realized by the following technical scheme: a cross seal structure that prevents clamping material, comprising a fixed plate;

[0005] A lifting assembly is provided on the fixed plate;

[0006] A first cross seal assembly is provided on the lifting assembly;

[0007] A second cross seal assembly is provided on the fixed plate and parallel above the first cross seal assembly.

[0008] In some embodiments, the lifting assembly includes two fixed seats, which are symmetrically provided on the fixed plate;

[0009] A fixed rod is provided on the fixed seat, and the first cross seal assembly is slidably provided on the two fixed rods;

[0010] A lifting cylinder is provided on the fixed plate and between the two fixed seats, and the output shaft of the lifting cylinder is connected with the first cross seal assembly.

[0011] In some embodiments, the first cross seal assembly includes a first lifting frame connected with the lifting assembly;

[0012] Two first connecting rods are symmetrically provided in the first lifting frame;

[0013] A first cross seal front plate is slidably provided on the two first connecting rods;

[0014] A first transverse sealing rear plate is slidably arranged on the two first connecting rods;

[0015] Two first transverse sealing cylinders are symmetrically arranged on the first lifting frame, and the output shafts of the two first transverse sealing cylinders are connected with the first transverse sealing front plate and the first transverse sealing rear plate respectively.

[0016] In some embodiments, the first transverse sealing assembly further comprises a first sawtooth arranged on the first transverse sealing front plate close to the first transverse sealing rear plate;

[0017] A second sawtooth is arranged on the first transverse sealing rear plate close to the first transverse sealing front plate and engages with the first sawtooth.

[0018] In some embodiments, the second transverse sealing assembly comprises a fixing frame connected with the fixing plate;

[0019] Two second connecting rods are symmetrically arranged in the fixing frame;

[0020] A second transverse sealing front plate is slidably arranged on the two second connecting rods;

[0021] A second transverse sealing rear plate is slidably arranged on the two second connecting rods;

[0022] Two second transverse sealing cylinders are symmetrically arranged on the fixing frame, and the output shafts of the two second transverse sealing cylinders are connected with the second transverse sealing front plate and the second transverse sealing rear plate respectively.

[0023] In some embodiments, the second transverse sealing front plate and the second transverse sealing rear plate are both embedded with resistance heating wires.

[0024] In some embodiments, an induction assembly is further included, and the induction assembly comprises an induction transmitter arranged on the fixing plate;

[0025] An induction receiver is arranged on the first lifting frame close to the fixing plate and is electrically connected with the lifting assembly, the first transverse sealing assembly and the second transverse sealing assembly.

[0026] In summary, the present application has the following advantages:

[0027] The horizontal sealing structure capable of preventing material clamping is provided with a fixing plate, a lifting assembly, a first horizontal sealing assembly and a second horizontal sealing assembly, a double horizontal sealing structure is formed, the first horizontal sealing assembly is driven to lift by the lifting assembly, the packaging bag can be pushed upward, the packaging bag is shaken, the uniformity of material distribution in the packaging bag is improved, the material clamping phenomenon in the sealing process is avoided, and the sealing quality is improved. BRIEF DESCRIPTION OF DRAWINGS

[0028] Figure 1 It is a structural schematic view of the embodiment 1 of the utility model;

[0029] Figure 2 It is a structural schematic view of the second horizontal sealing assembly of the embodiment 1 of the utility model;

[0030] Figure 3 It is a structural schematic view of the first horizontal sealing assembly of the embodiment 2 of the utility model.

[0031] In the drawing: 1, fixing plate; 2, lifting assembly; 21, fixed seat; 22, fixed rod; 23, lifting cylinder; 3, first horizontal sealing assembly; 31, first lifting frame; 32, first connecting rod; 33, first horizontal sealing front plate; 34, first horizontal sealing rear plate; 35, first horizontal sealing cylinder; 36, first sawtooth; 37, second sawtooth; 4, second horizontal sealing assembly; 41, fixed frame; 42, second connecting rod; 43, second horizontal sealing front plate; 44, second horizontal sealing rear plate; 45, second horizontal sealing cylinder. DETAILED DESCRIPTION

[0032] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model and not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the utility model.

[0033] Embodiment 1:

[0034] Reference Figures 1-2 A horizontal sealing structure capable of preventing material clamping, comprising a fixing plate 1, a lifting assembly 2, a first horizontal sealing assembly 3 and a second horizontal sealing assembly 4, the fixing plate is a basic support component of the whole structure, can be fixed on a packaging machine through bolts or welding, the lifting assembly 2 is arranged on the fixing plate 1, the first horizontal sealing assembly 3 is arranged on the lifting assembly 2, the first horizontal sealing assembly 3 can move up and down under the drive of the lifting assembly 2, the second horizontal sealing assembly 4 is arranged on the fixing plate 1 and is arranged in parallel above the first horizontal sealing assembly 3, the first horizontal sealing assembly 3 and the second horizontal sealing assembly 4 form a double horizontal sealing structure, and the horizontal sealing operation on the bag is completed together, so that the tightness and reliability of the sealing are ensured.

[0035] In some embodiments, the lifting assembly 2 comprises two fixing seats 21, a fixing rod 22 and a lifting cylinder 23. The two fixing seats 21 are symmetrically arranged on the fixing plate 1 and can be fixed by bolts. The fixing seat 21 can be made of high-strength alloy steel material to realize stable support of the fixing seat 21. The fixing rod 22 is arranged on the fixing seat 21, and the first cross-sealing assembly 3 is slidingly arranged on the two fixing rods 22. The two fixing rods 22 can provide guidance for lifting of the first cross-sealing assembly 3 to ensure smooth movement of the first cross-sealing assembly 3. The lifting cylinder 23 is arranged on the fixing plate 1 and between the two fixing seats 21. The output shaft of the lifting cylinder 23 is connected with the first cross-sealing assembly 3. Through the lifting cylinder 23, the first cross-sealing assembly 3 can be lifted on the fixing rod 22.

[0036] In some embodiments, the first cross-sealing assembly 3 comprises a first lifting frame 31, two first connecting rods 32, a first cross-sealing front plate 33, a first cross-sealing rear plate 34 and two first cross-sealing cylinders 35. The first lifting frame 31 is connected with the lifting assembly 2 and can move up and down under the drive of the lifting assembly 2. The two first connecting rods 32 are symmetrically arranged in the first lifting frame 31. The first cross-sealing front plate 33 is slidingly arranged on the two first connecting rods 32. The first cross-sealing rear plate 34 is slidingly arranged on the two first connecting rods 32. The first cross-sealing front plate 33 and the first cross-sealing rear plate 34 can be made of metal materials with good heat conduction performance such as copper alloy. The first connecting rod 32 can provide guidance for relative movement of the first cross-sealing front plate 33 and the first cross-sealing rear plate 34. The two first cross-sealing cylinders 35 are symmetrically arranged on the first lifting frame 31, and the output shafts of the two first cross-sealing cylinders 35 are respectively connected with the first cross-sealing front plate 33 and the first cross-sealing rear plate 34. Under the drive of the first cross-sealing cylinder 35, the first cross-sealing front plate 33 and the first cross-sealing rear plate 34 can approach or move away from each other to perform sealing operation on the bag.

[0037] In some embodiments, the second cross-sealing assembly 4 comprises a fixed frame 41, two second connecting rods 42, a second cross-sealing front plate 43, a second cross-sealing rear plate 44, and two second cross-sealing cylinders 45. The fixed frame 41 is connected to the fixed plate 1 and can provide mounting support for other components of the second cross-sealing assembly 4. The fixed frame 41 and the fixed plate 1 can be bolted together. The two second connecting rods 42 are symmetrically arranged in the fixed frame 41. The second cross-sealing front plate 43 and the second cross-sealing rear plate 44 are both slidably arranged on the two second connecting rods 42 and are symmetrically arranged. The second cross-sealing front plate 43 and the second cross-sealing rear plate 44 can be made of a metal material with good heat conductivity, such as copper alloy. The second connecting rods 42 can provide guidance for the relative movement of the second cross-sealing front plate 43 and the second cross-sealing rear plate 44. The two second cross-sealing cylinders 45 are symmetrically arranged on the fixed frame 41, and the output shafts of the two second cross-sealing cylinders 45 are respectively connected to the second cross-sealing front plate 43 and the second cross-sealing rear plate 44. Under the drive of the second cross-sealing cylinders 45, the second cross-sealing front plate 43 and the second cross-sealing rear plate 44 can move closer to or away from each other, and cooperate with the first cross-sealing assembly 3 to complete the cross-sealing operation of the bag.

[0038] In some embodiments, resistance heating wires are embedded in the second cross-sealing front plate 43 and the second cross-sealing rear plate 44. The heating temperature can be accurately adjusted by controlling the current and the power-on time. The heat generated by the resistance heating wires is rapidly and uniformly transmitted to the surface of the second cross-sealing front plate 43 and the second cross-sealing rear plate 44, so that the material at the sealing position of the bag can be rapidly melted and sealed, achieving good sealing effect.

[0039] In some embodiments, an induction assembly is further included, which comprises an induction transmitter and an induction receiver. The induction transmitter is arranged on the fixed plate 1 and can emit an induction signal. The induction transmitter can use infrared induction, which can be selected according to the actual application scene and detection accuracy requirements. The induction receiver is arranged on the side of the first lifting frame 31 close to the fixed plate 1 and is electrically connected with the lifting assembly 2, the first cross-sealing assembly 3, and the second cross-sealing assembly 4. The induction receiver can receive the signal emitted by the induction transmitter and judge the position and state of the first cross-sealing assembly 3 according to the signal change. When the induction receiver detects the first cross-sealing assembly 3, it will transmit the signal to the control system. The control system adjusts the actions of the lifting assembly 2, the first cross-sealing assembly 3, and the second cross-sealing assembly 4 according to the preset program, realizing the anti-pinch function.

[0040] The specific working principle is as follows:

[0041] The second transverse sealing front plate 43 and the second transverse sealing back plate 44 are driven to approach each other by the second transverse sealing cylinder 45. Since the resistance heating wires are embedded in the second transverse sealing front plate 43 and the second transverse sealing back plate 44, the resistance heating wires are powered according to a preset program during the approaching process. The heat generated by the resistance heating wires is rapidly and uniformly transferred to the surface of the second transverse sealing front plate 43 and the second transverse sealing back plate 44 by accurately controlling the current and the power-on time, so that the material at the sealing position of the bag is rapidly melted and sealed, and then the second transverse sealing front plate 43 and the second transverse sealing back plate 44 are separated from each other.

[0042] The sealing position of the packaging bag is lowered to the position of the first transverse sealing assembly 3, the first transverse sealing cylinder 35 is started, the first transverse sealing front plate 33 and the first transverse sealing back plate 34 approach each other to clamp the sealing position of the bag. The discharging device on the packaging machine starts to discharge, the material enters the bag and accumulates at the sealing position.

[0043] The lifting cylinder 23 is started to drive the first transverse sealing assembly 3 to start pushing upward on the fixed rod 22, thereby driving the bag to move upward. During the upward movement of the bag, the bag will shake, the internal space will gradually increase, and thus the material accumulated in the bag will gradually overcome the internal friction and the interaction between the materials to start to spread.

[0044] At this time, the second transverse sealing cylinder 45 drives the second transverse sealing front plate 43 and the second transverse sealing back plate 44 to approach each other, so that the material at the sealing position of the bag is rapidly melted and sealed. During this process, the lifting cylinder 23 drives the first transverse sealing assembly 3 to move downward on the fixed rod 22 to stretch the bag, thereby realizing the sealing of the bag.

[0045] Embodiment 2:

[0046] Reference Figure 3 The difference between this embodiment and embodiment 1 is that the first transverse sealing assembly 3 further comprises a first sawtooth 36 and a second sawtooth 37. The first sawtooth 36 is arranged on the side of the first transverse sealing front plate 33 close to the first transverse sealing back plate 34, and the second sawtooth 37 is arranged on the side of the first transverse sealing back plate 34 close to the first transverse sealing front plate 33 and engages with the first sawtooth 36. When the first transverse sealing front plate 33 and the first transverse sealing back plate 34 approach each other, the first sawtooth 36 and the second sawtooth 37 engage with each other. The first sawtooth 36 and the second sawtooth 37 can be made of hard alloy material, which can prevent the bag from sliding during the sealing process and cut the edge of the bag to some extent, so as to make the sealing more neat and improve the sealing quality.

[0047] The above examples are only used to illustrate the technical solutions of the present application, and are not intended to limit them; although the present application has been described in detail with reference to the foregoing examples, those skilled in the art should understand that the technical solutions recorded in the foregoing examples can still be modified, or some technical features therein can be replaced by equivalents; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present application.

Claims

1. A material pinch-free transverse seal structure, characterized by: It includes a fixed plate (1); A lifting assembly (2) is arranged on the fixed plate (1); A first horizontal sealing assembly (3) is arranged on the lifting assembly (2); A second horizontal sealing assembly (4) is arranged on the fixed plate (1) and parallel to the first horizontal sealing assembly (3).

2. A clampable material preventing transverse sealing structure according to claim 1, characterized in that: The lifting assembly (2) includes two fixed seats (21), which are symmetrically arranged on the fixed plate (1); A fixed rod (22) is arranged on the fixed seat (21), and two fixed rods (22) are slidably arranged with the first horizontal sealing assembly (3); A lifting cylinder (23) is arranged on the fixed plate (1) and between the two fixed seats (21), and the output shaft of the lifting cylinder (23) is connected with the first horizontal sealing assembly (3).

3. A clampable material preventing transverse sealing structure according to claim 1, characterized in that: The first horizontal sealing assembly (3) includes a first lifting frame (31) connected with the lifting assembly (2); Two first connecting rods (32) are symmetrically arranged in the first lifting frame (31); A first horizontal sealing front plate (33) is slidably arranged on the two first connecting rods (32); A first horizontal sealing rear plate (34) is slidably arranged on the two first connecting rods (32); Two first horizontal sealing cylinders (35) are symmetrically arranged on the first lifting frame (31), and the output shafts of the two first horizontal sealing cylinders (35) are respectively connected with the first horizontal sealing front plate (33) and the first horizontal sealing rear plate (34).

4. A clampable material preventing transverse sealing structure according to claim 3, characterized in that: The first horizontal sealing assembly (3) further includes a first sawtooth (36) arranged on the side of the first horizontal sealing front plate (33) close to the first horizontal sealing rear plate (34); A second sawtooth (37) is arranged on the side of the first horizontal sealing rear plate (34) close to the first horizontal sealing front plate (33) and engages with the first sawtooth (36).

5. A clampable material preventing transverse sealing structure according to claim 3, characterized in that: The second horizontal sealing assembly (4) includes a fixed frame (41) connected with the fixed plate (1); Two second connecting rods (42) are symmetrically arranged in the fixed frame (41); A second horizontal sealing front plate (43) is slidably arranged on the two second connecting rods (42); A second horizontal sealing rear plate (44) is slidably arranged on the two second connecting rods (42); Two second horizontal sealing cylinders (45) are symmetrically arranged on the fixed frame (41), and the output shafts of the two second horizontal sealing cylinders (45) are respectively connected with the second horizontal sealing front plate (43) and the second horizontal sealing rear plate (44).

6. A clampable material preventing transverse sealing structure according to claim 5, characterized in that: The second transverse sealing front plate (43) and the second transverse sealing rear plate (44) are both embedded with resistance heating wires.

7. A clampable material preventing transverse sealing structure according to claim 3, characterized in that: The induction assembly comprises an induction transmitter arranged on the fixed plate (1). An induction receiver is arranged on the first lifting frame (31) close to the fixed plate (1) and is electrically connected with the lifting assembly (2), the first transverse sealing assembly (3) and the second transverse sealing assembly (4).

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