Hot joining device for cloth liner joints

Abstract

The utility model relates to the technical field of tire production, in particular to a hot jointing device for a cloth liner joint, which comprises a rack, a support is arranged at the top of the rack, a first telescopic mechanism is vertically arranged on the support, and a heating strip is horizontally arranged at the bottom moving end of the first telescopic mechanism; guide sleeves are arranged on the support and located on the two sides of the first telescopic mechanism respectively, guide rods are vertically and slidably connected into the guide sleeves, and the bottoms of the guide rods are connected with the heating strips. A supporting mechanism matched with the heating strip is arranged at the position, under the heating strip, of the top of the rack. According to the utility model, the joint of the two pieces of cloth liner can be tightly attached to the heating strip by pressurizing and heating at the top and matching with the elastic support provided by the air bag structure at the bottom, so that the hot connection part is neater, and the hot connection is firmer and more reliable.

Description

Technical Field

[0001] The utility model relates to the technical field of tire production, in particular to a hot connection device for the joint of a backing cloth. Background Art

[0002] The plastic backing cloth is a very important part in the production process of steel cord fabric, which can isolate the steel cord fabric to prevent the fabric from sticking. During the use of the steel cord fabric, it is necessary to ensure the stability of the joint of the plastic backing cloth to avoid the breakage of the joint during the unwinding process.

[0003] When using an ordinary joint machine to joint the backing cloth, manually press down the pressure bar to hot-connect the joint of the backing cloth. The tabletop is located below the backing cloth. Since it is difficult to always keep the tabletop and the heating bar in a relatively parallel state, it is impossible to ensure the gap height on both sides when the tabletop and the heating bar clamp the backing cloth for heating. Once the gap on one side is too large, or the gap in the middle is too large, the hot-connecting part will be intermittent, resulting in an unstable and easily disconnected joint part. Summary of the Utility Model

[0004] The purpose of the utility model is to provide a hot connection device for the joint of a backing cloth aiming at the defects existing in the prior art, solve the current problem of unstable connection, make the hot-connecting part at the joint of the backing cloth more neat, and be more firm and reliable after hot connection.

[0005] The technical solution of the utility model is: a hot connection device for the joint of a backing cloth, including a frame. A bracket is provided at the top of the frame. A vertically arranged first telescopic mechanism is provided on the bracket. A horizontally arranged heating bar is provided at the bottom moving end of the first telescopic mechanism.

[0006] Guide sleeves are respectively provided on both sides of the bracket at the two sides of the first telescopic mechanism. A guide rod is vertically and slidably connected in the guide sleeve. The bottom of the guide rod is connected to the heating bar.

[0007] A support mechanism cooperating with the heating bar is provided at the top of the frame directly below the heating bar. The support mechanism includes a bottom shell with an opening at the top, and an airbag sheet encapsulated at the opening. An airbag cavity is formed by the combination of the airbag sheet and the bottom shell. An air injection nozzle communicating with the airbag cavity is further provided on the bottom shell.

[0008] Preferably, two vertically arranged second telescopic mechanisms are symmetrically provided on both sides of the bracket. Horizontal pressure bars are respectively connected to the bottoms of the second telescopic mechanisms. The pressure bars are arranged in parallel with the heating bar. Support table surfaces cooperating with the adjacent pressure bars are respectively provided on both sides of the top of the bracket.

[0009] Preferably, the first telescopic mechanism is a cylinder, a hydraulic cylinder or an electric telescopic rod.

[0010] Preferably, the second telescopic mechanism is a cylinder, a hydraulic cylinder or an electric telescopic rod.

[0011] Compared with the prior art, the utility model has the following advantages: through the mechanized pressurization and heating at the top, and the elasticity provided by the airbag structure at the bottom, the joint of the backing cloth can be closely attached to the heating strip, the heat-sealing part is more neat, and it is more firm and reliable after heat-sealing.

[0012] In addition, by adding a second telescopic mechanism on both sides of the heating strip to control the pressing strip to press down the backing cloth on both sides, the backing cloth can be in a flat state, making the subsequent heat-sealing operation more stable and reliable. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 is a three-dimensional structural schematic diagram of the utility model;

[0014] Figure 2 is a front view structural schematic diagram of the utility model;

[0015] Figure 3 is a left view structural schematic diagram of the utility model;

[0016] Figure 4 is a vertical sectional structural schematic diagram of the support mechanism;

[0017] In the figure: 1, bracket; 2, frame; 3, first telescopic mechanism; 4, second telescopic mechanism; 5, guide rod; 6, guide sleeve; 7, heating strip; 8, pressing strip; 9, support mechanism; 10, air injection nozzle; 11, airbag sheet; 12, bottom shell; 13, airbag cavity; 14, support tabletop. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0018] The following further describes the utility model in conjunction with the drawings and embodiments. Embodiment 1

[0019] A heat-sealing device for the joint of a backing cloth, comprising a frame 2, a bracket 1 is provided at the top of the frame 2, a vertically arranged first telescopic mechanism 3 is provided on the bracket 1, the first telescopic mechanism 3 is a cylinder, a hydraulic cylinder or an electric telescopic rod, and a horizontally arranged heating strip 7 is provided at the bottom mobile end of the first telescopic mechanism 3.

[0020] Guide sleeves 6 are respectively provided on both sides of the first telescopic mechanism 3 on the bracket 1, a guide rod 5 is vertically slidably connected in the guide sleeve 6, and the bottom of the guide rod 5 is connected to the heating strip 7.

[0021] A support mechanism 9 cooperating with the heating strip 7 is provided at the top of the frame 2 directly below the heating strip 7. The support mechanism 9 includes a bottom shell 12 with an opening at the top and an airbag sheet 11 encapsulated at the opening, and an airbag cavity 13 is formed by the combination of the airbag sheet 11 and the bottom shell 12.

[0022] An air injection nozzle 10 communicating with the airbag cavity 13 is further provided on the bottom shell 12. Air is injected into the airbag cavity 13 through the air injection nozzle 10, so that the airbag piece 11 bulges into an elastic support state. The elastic support strength of the airbag piece 11 can also be adjusted by pressurizing or depressurizing through the air injection nozzle 10.

[0023] During operation, the first telescopic mechanism 3 extends, thereby driving the heating strip 7 to press down, tightly pressing the joint of the cushion cloth on the bulged airbag piece 11, and then starting the heating strip 7 to heat for thermal connection.

[0024] Through the mechanized pressurization and heating at the top of the utility model, combined with the elasticity provided by the bottom airbag structure, the joint of the cushion cloth can be closely attached to the heating strip 7, the thermally connected part is more neat, and it is more firm and reliable after thermal connection. Embodiment 2

[0025] This embodiment is further optimized on the basis of the above embodiment. Specifically:

[0026] Two vertically arranged second telescopic mechanisms 4 are symmetrically provided on both sides of the bracket 1. The second telescopic mechanism 4 is a cylinder, a hydraulic cylinder or an electric telescopic rod.

[0027] The bottoms of the second telescopic mechanisms 4 are respectively connected with horizontally arranged pressure bars 8. The pressure bars 8 are arranged in parallel with the heating strip 7. Support platforms 14 cooperating with the adjacent pressure bars 8 are respectively provided on both sides of the top of the bracket 1.

[0028] During operation, first control the second telescopic mechanism 4 to drive the pressure bar 8 downward, so that the pressure bar 8 presses and fixes the cushion cloth on both sides on the support platform 14, and then control the first telescopic mechanism 3 to press down for the downward pressing thermal connection operation.

[0029] By adding the second telescopic mechanism 4 on both sides of the heating strip 7 to control the pressure bar 8 to press down the cushion cloth on both sides, the cushion cloth can be in a flat state, making the subsequent thermal connection operation more stable and reliable.

[0030] The utility model is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the purpose of the utility model, and the changed content still belongs to the protection scope of the utility model.

Claims

1. A heat bonding device for a cloth pad joint, comprising a frame, characterized in that: A bracket is provided at the top of the frame, and a vertically arranged first telescopic mechanism is provided on the bracket. A horizontally arranged heating strip is provided at the bottom moving end of the first telescopic mechanism. Guide sleeves are respectively provided on both sides of the first telescopic mechanism on the bracket. A guide rod is vertically slidably connected in the guide sleeve, and the bottom of the guide rod is connected to the heating strip. A support mechanism cooperating with the heating strip is provided directly below the heating strip at the top of the frame. The support mechanism includes a bottom shell with an opening at the top and an airbag sheet encapsulated at the opening. An airbag cavity is formed by the combination of the airbag sheet and the bottom shell. An air injection nozzle communicating with the airbag cavity is further provided on the bottom shell.

2. The hot bonding device for the pad cloth joint according to claim 1, wherein: Two vertically arranged second telescopic mechanisms are symmetrically provided on both sides of the bracket. Horizontal pressure strips are respectively connected to the bottoms of the second telescopic mechanisms. The pressure strips are arranged in parallel with the heating strip. Support platforms cooperating with the adjacent pressure strips are respectively provided on both sides of the top of the bracket.

3. A heat-sealing device for a tablecloth joint according to claim 1, characterized in that: The first telescopic mechanism is a cylinder, a hydraulic cylinder or an electric telescopic rod.

4. The heat-sealing device for the pad cloth joint according to claim 2, wherein: The second telescopic mechanism is a cylinder, a hydraulic cylinder or an electric telescopic rod.

Images