Sealing machine

Abstract

The utility model relates to a sealing machine which comprises a main body and a conveying belt, a pre-pressing assembly is arranged at the feeding end of the main body, the pre-pressing assembly comprises a first elastic pressing roller set and a second elastic pressing roller set, the first elastic pressing roller set comprises two first pressing rollers which are arranged in an up-down elastic mode, and the second elastic pressing roller set comprises two second pressing rollers which are arranged in an up-down elastic mode. The rotating speed of the first elastic compression roller group is higher than that of the second elastic compression roller group; and feeding channels are arranged between the first elastic compression roller group and the second elastic compression roller group as well as between the first elastic compression roller group and the main body. By arranging the pre-pressing assembly, the plastic sealing edge can be effectively straightened, and the phenomenon that the plastic sealing edge is wrinkled in the heat sealing process is avoided, so that the heat sealing effect is guaranteed, and the complete appearance of a product is guaranteed.

Description

TECHNICAL FIELD

[0001] The utility model relates to sealing packaging technical field, concretely relates to a sealing machine. BACKGROUND

[0002] The sealing machine, also known as a packaging sealing machine, is mainly used for sealing operation on containers containing products to ensure that the products can be sealed and stored, maintain product quality, and avoid product loss.

[0003] The patent document with the publication number CN2129551415U discloses a sealing machine, which includes a sealing assembly, the sealing assembly includes a sealing machine body, a protective plate, an air cooler, an air outlet pipe and a base, wherein the air cooling component facilitates rapid cooling of the plastic bag after sealing, avoids deformation of the sealing area under the clamping action of the sealing tape, and has certain positive significance, however, the product to be sealed often causes poor sealing effect due to plastic edge wrinkles when entering the sealing area, which affects the packaging appearance of the product and further affects the sales situation. UTILITY MODEL CONTENT

[0004] The utility model aims at providing a sealing machine to solve the current problems.

[0005] To achieve the above-mentioned purpose, the utility model adopts the following technical scheme:

[0006] A sealing machine, comprising a main body and a conveyor belt; the feed inlet of the main body is provided with a pre-pressing assembly, the pre-pressing assembly comprises a first elastic pressure roller group and a second elastic pressure roller group, the first elastic pressure roller group comprises two first pressure rollers elastically arranged above and below, the second elastic pressure roller group comprises two second pressure rollers elastically arranged above and below, the rotation speed of the first elastic pressure roller group is greater than that of the second elastic pressure roller group; a feed passage is arranged between the first elastic pressure roller group and the second elastic pressure roller group, and between the first elastic pressure roller group and the main body.

[0007] Further, it further comprises a mounting bracket, the mounting bracket comprises two mounting plates spaced apart in the upward and downward directions, the first pressure rollers and the second pressure rollers are elastically arranged on the mounting plates.

[0008] Further, one side of each of the two mounting plates facing each other is provided with a first sliding block, a first sliding groove is arranged on the first sliding block, a first sliding sleeve is slidably arranged in the first sliding groove, a first rotating shaft is rotatably arranged in the first sliding sleeve, one end of the first rotating shaft is connected with the first pressure roller; the end of the first rotating shaft of the one first rotating shaft located above and away from the first pressure roller is drivingly connected with a first motor; a first spring is arranged between the first sliding sleeve and the mounting plate.

[0009] Further, the outer peripheral wall of the first sliding sleeve is provided with a first sliding rod, and the first sliding rod is slidably penetrated through the mounting plate from one end of the first sliding sleeve.

[0010] Further, one side of each of the two mounting plates is further provided with a second sliding block, the second sliding block is provided with a second sliding groove, the second sliding sleeve is slidably arranged in the second sliding groove, the second rotating shaft is rotatably arranged in the second sliding sleeve, and one end of the second rotating shaft is connected with the second compression roller.

[0011] Further, the outer peripheral wall of the second sliding sleeve is provided with a second sliding rod, and the second sliding rod is slidably penetrated through the mounting plate from one end of the second sliding sleeve.

[0012] Further, the side wall of the main body is provided with a sliding rail; the first motor is connected to the first connecting plate, the second motor is connected to the second connecting plate, the first connecting plate and the second connecting plate are both provided with sliding blocks, and the sliding blocks are in sliding cooperation with the sliding rail.

[0013] Further, the first elastic compression roller group and the second elastic compression roller group, and the first elastic compression roller group and the main body are both provided with upper limit plates and lower limit plates, the upper limit plates and the lower limit plates are arranged in an upper and lower interval, and together form the feeding channel; the upper limit plates and the lower limit plates are both provided with connecting arms, and the connecting arms are arranged on the side wall of the main body.

[0014] The utility model discloses the beneficial effects: through setting up pre -pressing subassembly, can effectively straighten the plastic edge -sealing, avoids the phenomenon that the plastic edge -sealing appears when heat -sealing process is wrinkled, thereby guaranteeing the effect of heat -sealing, guaranteeing the appearance integrity of product. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 It is the whole structure schematic diagram of the utility model;

[0016] Figure 2 It is another angle schematic diagram of the whole structure of the utility model;

[0017] Figure 3 It is Figure 2 The local amplification schematic diagram of A in the figure.

[0018] The names corresponding to the marks in the figure are:

[0019] 1, the main body; 2, the conveyor belt; 3, the pre-pressing assembly; 30, the mounting plate; 31, the first sliding block; 310, the first sliding groove; 32, the first sliding sleeve; 33, the first rotating shaft; 34, the first compression roller; 35, the first sliding rod; 36, the first spring; 37, the first motor; 38, the first connecting plate; 4, the slide rail; 51, the second sliding block; 510, the second sliding groove; 52, the second sliding sleeve; 53, the second rotating shaft; 54, the second compression roller; 55, the second sliding rod; 56, the second spring; 57, the second motor; 58, the second connecting plate; 60, the upper limit plate; 61, the lower limit plate; 62, the connecting arm; 7, the blocking handle. DETAILED DESCRIPTION

[0020] 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.

[0021] Embodiments of the utility model:

[0022] As Figures 1-3 shown, a sealing machine, including main body 1 and conveyor belt 2, the feed end of main body 1 is equipped with pre-pressing assembly 3, pre-pressing assembly 3 includes first elastic compression roller group and second elastic compression roller group, first elastic compression roller group includes two first compression rollers 34 that are elastically arranged up and down, second elastic compression roller group includes two second compression rollers 54 that are elastically arranged up and down, the rotating speed of first elastic compression roller group is greater than the rotating speed of second elastic compression roller group, first elastic compression roller group and second elastic compression roller group, first elastic compression roller group and main body 1 are equipped with feed channel between.

[0023] Main body 1 and conveyor belt 2 are more common in the industry, are prior art, in the embodiment, no longer repeat.

[0024] Two first compression rollers 34 in first elastic compression roller group elastically abut each other, two second compression rollers 54 in second elastic compression roller group elastically abut each other, to drive plastic edge band to move towards main body 1.

[0025] In the embodiment, first elastic compression roller group is closer to main body 1 relative to second elastic compression roller group.

[0026] When the plastic sealing edge of the packaging bag to be sealed enters the main body 1 for sealing, it first passes through the pre-pressing assembly 3 for pre-pressing. Specifically, the plastic sealing edge is pressed by the two second pressing rollers 54, so as to be driven to move towards the two first pressing rollers 34. When the plastic sealing edge is pressed by the two first pressing rollers 34 and the two second pressing rollers 54 at the same time, the plastic sealing edge will be straightened due to the rotation speed of the first pressing rollers 34 being greater than the rotation speed of the second pressing rollers 54, and the plastic sealing edge between the two first pressing rollers 34 or the plastic sealing edge between the two second pressing rollers 54 will slightly slip, so as to further straighten the plastic sealing edge. Finally, the plastic sealing edge enters the main body 1 through the feeding channel for heat sealing. By arranging the pre-pressing assembly 3, the plastic sealing edge can be effectively straightened, so as to avoid the phenomenon of the plastic sealing edge being wrinkled during the heat sealing process, thereby ensuring the heat sealing effect and the appearance integrity of the product.

[0027] In some further embodiments, the installation frame is further provided, and the installation frame comprises two installation plates 30 which are arranged in a spaced manner in the up-down direction, and the first pressing roller 34 and the second pressing roller 54 are both elastically arranged on the installation plate 30.

[0028] The two installation plates 30 are arranged in a spaced manner in the up-down direction and are both fixed on the main body 1 by screws.

[0029] In some further embodiments, the side of each of the two installation plates 30 which faces the other installation plate 30 is provided with a first sliding block 31, the first sliding block 31 is provided with a first sliding groove 310, a first sliding sleeve 32 is slidably arranged in the first sliding groove 310, a first rotating shaft 33 is rotatably arranged in the first sliding sleeve 32, and one end of the first rotating shaft 33 is connected with the first pressing roller 34. The end of the first rotating shaft 33 which is away from the first pressing roller 34 of the first rotating shaft 33 which is located above the other first rotating shaft 33 is in transmission connection with the first motor 37. The first sliding sleeve 32 and the installation plate 30 are provided with a first spring 36 therebetween.

[0030] Under the action of the first spring 36, the two first pressing rollers 34 always have a tendency to approach each other, and in actual situations, the outer edges of the two first pressing rollers 34 abut against each other to smoothly drive the plastic sealing edge to move forward.

[0031] The first rotating shaft 33 and the first sliding sleeve 32 can be connected by a bearing, the first sliding sleeve 32 is arranged to enable the first rotating shaft 33 to rotate while also sliding relative to the first sliding groove 310, and the first rotating shaft 33 and the first sliding groove 310 are ensured not to be interfered.

[0032] The first pressing roller 34 which is located above the other first pressing roller 34 among the two first pressing rollers 34 is a driving roller.

[0033] In some further embodiments, the outer peripheral wall of the first sliding sleeve 32 is provided with a first sliding rod 35, and one end of the first sliding rod 35 which is away from the first sliding sleeve 32 slidably penetrates the installation plate 30.

[0034] In order to ensure the stability of the sliding of the first sliding sleeve 32 in the first sliding groove 310, a first sliding rod 35 is arranged on the outer side of the first sliding sleeve 32, the first sliding rod 35 is in sliding fit with the mounting plate 30, and the first spring 36 is preferably sleeved on the first sliding rod 35, so as to further ensure the stability of the first sliding sleeve 32 and play a certain limiting role on the first spring 36.

[0035] In some further embodiments, the side of each of the two mounting plates 30 facing each other is also provided with a second sliding block 51, the second sliding block 51 is provided with a second sliding groove 510, the second sliding groove 510 is slidably provided with a second sliding sleeve 52, the second sliding sleeve 52 is rotatably provided with a second rotating shaft 53, one end of the second rotating shaft 53 is connected with a second compression roller 54; the end of the second rotating shaft 53 located opposite to the lower one and away from the second compression roller 54 is in transmission connection with a second motor 57; the second sliding sleeve 52 is provided with a second spring 56 between the mounting plate 30.

[0036] The second sliding block 51 is located on the side of the mounting plate 30 away from the main body 1 and away from the first sliding block 31.

[0037] Under the action of the second spring 56, the two second compression rollers 54 always have a tendency to approach each other, and in actual situations, the outer edges of the two second compression rollers 54 abut against each other to smoothly drive the forward movement of the plastic edge.

[0038] The second rotating shaft 53 and the second sliding sleeve 52 can be connected through a bearing, the arrangement of the second sliding sleeve 52 enables the second rotating shaft 53 to rotate while sliding relative to the second sliding groove 510, and ensures that the two are not disturbed.

[0039] The second compression roller 54 located opposite to the lower one of the two second compression rollers 54 is a driving compression roller.

[0040] In some further embodiments, the outer peripheral wall of the second sliding sleeve 52 is provided with a second sliding rod 55, one end of the second sliding rod 55 away from the second sliding sleeve 52 is slidably penetrated through the mounting plate 30.

[0041] The second sliding rod 55 and the first sliding rod 35 have the same effect, which is to ensure the stability during the elastic sliding.

[0042] In other embodiments, another first sliding rod 35 can also be additionally arranged on the side of the first sliding sleeve 32 away from the mounting plate 30, and the first sliding rod 35 is slidably penetrated through the groove wall of the first sliding groove 310, so as to further ensure the stability of the first sliding sleeve 32, and correspondingly, the second sliding sleeve 52 can also be additionally provided with a corresponding second sliding rod 55.

[0043] In some further embodiments, the side wall of the main body 1 is provided with a sliding rail 4; the first motor 37 is connected to a first connecting plate 38, and the second motor 57 is connected to a second connecting plate 58, and the first connecting plate 38 and the second connecting plate 58 are both provided with sliding blocks which are in sliding cooperation with the sliding rail 4.

[0044] In order to ensure the balance during the up-down sliding, the sliding rail 4 and the sliding block are specially arranged to avoid the inclination of the first compression roller 34 and the second compression roller 54.

[0045] In some further embodiments, the first elastic compression roller group and the second elastic compression roller group are both provided with upper limit plates 60 and lower limit plates 61, the upper limit plates 60 and the lower limit plates 61 are arranged in an upper-lower interval, and together form a feeding channel; the upper limit plates 60 and the lower limit plates 61 are both provided with connecting arms 62 which are arranged on the side wall of the main body 1.

[0046] The area between the upper limit plate 60 and the lower limit plate 61 is the feeding channel, and the plastic sealing edge is gradually fed into the main body 1 for heat sealing under the driving of the first compression roller 34 and the second compression roller 54.

[0047] The end of the first sliding rod 35 and the second sliding rod 55 which penetrates the mounting plate 30 is connected with a stop handle 7 through a screw to avoid slipping off.

[0048] Working principle:

[0049] When the plastic sealing edge of the packaging bag to be packaged enters the main body 1 for sealing, it is first pre-pressed by the pre-pressing assembly 3, specifically, the plastic sealing edge is pressed by the two second compression rollers 54 and is driven to move towards the two first compression rollers 34, when the plastic sealing edge is pressed by the two first compression rollers 34 and the two second compression rollers 54 at the same time, since the rotating speed of the first compression roller 34 is greater than that of the second compression roller 54, the plastic sealing edge will be straightened, and the plastic sealing edge between the two first compression rollers 34 or between the two second compression rollers 54 will be slightly slipped, so as to further straighten the plastic sealing edge, and finally enter the main body 1 for heat sealing through the feeding channel. By arranging the pre-pressing assembly 3, the plastic sealing edge can be effectively straightened, and the phenomenon of wrinkling of the plastic sealing edge during heat sealing can be avoided, so as to ensure the heat sealing effect and the appearance integrity of the product.

[0050] Obviously, the described embodiments are only part of the embodiments of the present application, not all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art belong to the scope of protection of the present application.

Claims

1. A sealing machine comprising a main body and a conveyor belt; characterized in that, The feeding end of the main body is provided with a pre-pressing assembly, the pre-pressing assembly comprises a first elastic compression roller set and a second elastic compression roller set, the first elastic compression roller set comprises two first compression rollers which are arranged in an elastic manner in an up-down direction, the second elastic compression roller set comprises two second compression rollers which are arranged in an elastic manner in an up-down direction, the rotating speed of the first elastic compression roller set is greater than the rotating speed of the second elastic compression roller set; a feeding channel is arranged between the first elastic compression roller set and the second elastic compression roller set and between the first elastic compression roller set and the main body.

2. A sealing machine according to claim 1, characterised in that The pre-pressing assembly further comprises a mounting frame, the mounting frame comprises two mounting plates which are arranged in an interval in an up-down direction, and the first compression rollers and the second compression rollers are arranged in an elastic manner on the mounting plates.

3. A sealing machine according to claim 2, characterised in that The side of each of the two mounting plates which faces the other mounting plate is provided with a first sliding block, a first sliding groove is arranged on the first sliding block, a first sliding sleeve is slidably arranged in the first sliding groove, a first rotating shaft is rotatably arranged in the first sliding sleeve, and one end of the first rotating shaft is connected to the first compression roller; the end of the first rotating shaft which is away from the first compression roller of the mounting plate which is located above is drivingly connected to a first motor; a first spring is arranged between the first sliding sleeve and the mounting plate.

4. A sealing machine according to claim 3, characterised in that The outer circumferential wall of the first sliding sleeve is provided with a first sliding rod, and one end of the first sliding rod which is away from the first sliding sleeve is slidably penetrated through the mounting plate.

5. A sealing machine according to claim 4, characterised in that The side of each of the two mounting plates which faces the other mounting plate is provided with a second sliding block, a second sliding groove is arranged on the second sliding block, a second sliding sleeve is slidably arranged in the second sliding groove, a second rotating shaft is rotatably arranged in the second sliding sleeve, and one end of the second rotating shaft is connected to the second compression roller; the end of the second rotating shaft which is away from the second compression roller of the mounting plate which is located below is drivingly connected to a second motor; a second spring is arranged between the second sliding sleeve and the mounting plate.

6. A sealing machine according to claim 5, characterised in that The outer circumferential wall of the second sliding sleeve is provided with a second sliding rod, and one end of the second sliding rod which is away from the second sliding sleeve is slidably penetrated through the mounting plate.

7. A sealing machine according to claim 6, characterised in that A slide rail is arranged on the side wall of the main body; the first motor is connected to a first connecting plate, the second motor is connected to a second connecting plate, a sliding block is arranged on each of the first connecting plate and the second connecting plate, and the sliding blocks are slidably matched with the slide rail.

8. A sealing machine according to claim 7, characterised in that Upper limit plates and lower limit plates are arranged between the first elastic compression roller set and the second elastic compression roller set and between the first elastic compression roller set and the main body, the upper limit plates and the lower limit plates are arranged in an interval in an up-down direction, and the upper limit plates and the lower limit plates jointly form the feeding channel; a connecting arm is arranged on each of the upper limit plates and the lower limit plates, and the connecting arm is arranged on the side wall of the main body.

Images