Laminating machine for polyurethane sponge

Abstract

The utility model relates to the technical field of sponge processing, and provides a polyurethane sponge laminator which comprises a rack, a conveying mechanism arranged on the rack and used for conveying sponge, a support arranged on the rack and a gluing mechanism arranged on the support and used for gluing the conveyed sponge. The gluing mechanism comprises a material barrel arranged on the support, a discharging pipe arranged on the material barrel and the support in a penetrating mode, a gluing assembly arranged below the discharging pipe and a lifting assembly arranged on the support and used for driving the gluing assembly to ascend and descend. The gluing assembly comprises a mounting frame, a gluing roller rotationally connected to the mounting frame, an abutting roller abutting against the gluing roller and two driving parts for driving the gluing roller and the abutting roller to rotate correspondingly, and a containing groove used for receiving glue output by the discharging pipe is reserved between the gluing roller and the abutting roller. Adsorption strips used for adsorbing sizing materials are arranged on the peripheral wall of the gluing roller in a protruding mode. The method has the beneficial effect that the bonding effect of the sponge is improved.

Description

Technical Field

[0001] The present application relates to the technical field of sponge processing, and in particular to a laminating machine for polyurethane sponges. Background Art

[0002] Polyurethane, or polyurethane, is a polymer compound that comes in two main categories: polyester and polyether. Due to its excellent comfort and support, it's often used as a raw material for mattresses and sachets. These mattresses are often made from multiple layers, and these layers of polyurethane foam require bonding.

[0003] In the existing technology, some methods apply glue to the upper surface of the bottom sponge by spraying, and then stack another sponge on the bottom sponge. When the spraying method is used, the spraying will generate a certain force, and the sprayed glue is easily rebounded by the elastic force of the sponge itself and falls to other positions of the sponge or outside the sponge, affecting the thickness of the glue, thereby affecting the bonding effect of the two polyurethane sponges. Therefore, further improvement is needed. Utility Model Content

[0004] In order to improve the bonding effect of sponges, the present application provides a polyurethane sponge laminating machine.

[0005] The present application provides a polyurethane sponge laminating machine, which adopts the following technical solution:

[0006] A polyurethane sponge gluing machine comprises a frame, a conveying mechanism arranged on the frame for transmitting sponges, a bracket arranged on the frame, and a gluing mechanism arranged on the bracket for gluing the conveyed sponges; the gluing mechanism comprises a material barrel arranged on the bracket, a discharge pipe passing through the material barrel and the bracket, a gluing assembly arranged below the discharge pipe, and a lifting assembly arranged on the bracket for driving the gluing assembly to rise and fall, the gluing assembly comprises a mounting frame, a gluing roller rotatably connected to the mounting frame, an abutting roller abutting the gluing roller, and two driving members that respectively drive the gluing roller and the abutting roller to rotate, a placement groove for receiving the glue output by the discharge pipe is reserved between the gluing roller and the abutting roller, the outer peripheral wall of the gluing roller is protruding with an adsorption strip for adsorbing the glue, and a plurality of the adsorption strips are arranged at intervals along the length direction of the gluing roller.

[0007] By adopting the above technical solution, before applying glue to the sponge, the driving component is first activated to drive the glue roller to rotate, so that the adsorption strips on the glue roller pass through the glue in the placement groove for adsorption. As the lifting component adjusts the height of the glue roller relative to the sponge, the conveying mechanism conveys the sponge. After the sponge passes the gap between the glue roller and the conveying mechanism, the glue roller rotates so that the glue adsorbed by the adsorption strips on the glue roller is applied to the sponge for application. Since the adsorption strips after application are rotated back into the placement groove to adsorb the glue, the possibility of glue falling out due to reaction force is reduced compared to spraying, and the glue application on the sponge is relatively uniform. Moreover, compared to direct application with a brush, the glue supply can be continuously supplied, reducing the possibility of insufficient glue application due to the brush applying too much glue, thereby improving the uniformity of glue application and further improving the bonding effect between multiple layers of sponge.

[0008] Preferably, the diameter of the glue coating roller is larger than the diameter of the abutting roller, and the distance between the abutting roller and the sponge is larger than the distance between the glue coating roller and the sponge.

[0009] By adopting the above technical solution, the diameter of the abutment roller is smaller than the diameter of the glue coating roller, and the distance between the abutment roller and the sponge is larger than the distance between the glue coating roller and the sponge. This can reduce the possibility of the abutment roller abutting against the sponge, so that the glue carried on the abutment roller is not likely to be smeared on the sponge, thereby reducing the impact on the uniformity of glue coating due to repeated gluing.

[0010] Preferably, a diaphragm is provided between the adsorption strip and the glue coating roller, the diaphragm is adhered to the glue coating roller, and the adsorption strip is fixedly connected to the diaphragm.

[0011] By adopting the above technical solution, the adsorption strip may be worn out during use, which may affect the subsequent gluing of the sponge. Therefore, a diaphragm is provided to facilitate replacement to maintain the uniformity of gluing of the sponge.

[0012] Preferably, the ends of the glue coating roller and the abutting roller extend to both sides of the frame, and collecting troughs are provided on both sides of the frame below the glue coating roller. The mounting frame is protrudingly provided with a first scraper that abuts against the glue coating roller and a second scraper that abuts against the outer peripheral wall of the abutting roller. There are two of each of the first scraper and the second scraper, and they are arranged near the two ends of the glue coating roller.

[0013] By adopting the above technical solution, a first scraper and a second scraper are provided to scrape the rubber overflowing to both ends of the rubber coating roller and the abutting roller and the condensed rubber, so that the rubber falls into the collection tank below for collection.

[0014] Preferably, the first scraper is arranged in an arc shape along the rotation direction of the glue coating roller, and the second scraper is arranged in an arc shape along the rotation direction of the abutting roller. One side wall of the first scraper and the second scraper is exposed to the end faces of the glue coating roller and the abutting roller respectively.

[0015] By adopting the above technical solution, the first scraper is arranged in an arc shape along the rotation direction of the glue coating roller, and the second scraper is arranged in an arc shape along the rotation direction of the abutting roller, so that the scraped rubber falls into the collection tank along the arc of the scraper.

[0016] Preferably, a limiting plate is protruding from the second scraper, and the limiting plate abuts against the glue coating roller.

[0017] By adopting the above technical solution, a limiting plate is provided to limit the rubber material in the placement groove between the abutting roller and the rubber coating roller, thereby reducing the possibility of the rubber material falling from the end of the abutting roller.

[0018] Preferably, the driving member includes a gear box fixedly connected to the side wall of the mounting frame and a driving motor fixed to the output shaft of the gear box, and the output shafts of the two gear boxes away from the driving motor are both passed through the mounting frame to be fixed to the glue coating roller and the abutting roller respectively.

[0019] By adopting the above technical solution, the second drive motor is started to drive the gear box to rotate, thereby driving the glue coating roller and the abutting roller to rotate.

[0020] Preferably, the lifting assembly includes a sliding plate connected to the mounting frame, a screw rod passing through the sliding plate, and a third drive motor for driving the screw rod to rotate. Two sliding plates are provided and are respectively arranged at both ends of the mounting frame. The sliding plate is protrudingly provided with a slider, and the bracket is provided with a sliding groove along the height direction for the sliding connection of the slider.

[0021] By adopting the above technical solution, the third drive motor is started to drive the screw rod to rotate, thereby driving the sliding plate to slide along the height direction of the bracket.

[0022] In summary, the present invention has the following beneficial effects:

[0023] 1. A gluing roller is provided so that the glue adsorbed by the adsorption strip on the gluing roller is smeared on the sponge for smearing. Since the adsorption strip after smearing will rotate into the placement groove again to adsorb the glue, compared with gluing by spraying, the possibility of falling outside due to the influence of the reaction force can be reduced, and the gluing of the sponge is relatively uniform.

[0024] 2. The first scraper and the second scraper are provided to scrape the rubber material overflowing to both ends of the rubber coating roller and the abutting roller and the condensed rubber material, so that the rubber material falls into the collecting tank below for collection. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 This is a schematic diagram of the overall structure of Example 1 of the present application;

[0026] Figure 2 is a side structural schematic diagram of Example 1 of the present application;

[0027] Figure 3 This is a schematic structural diagram of the first scraper and the second scraper in Example 1 of the present application;

[0028] Figure 4 It is a structural diagram of Example 2 of the present application.

[0029] Explanation of the accompanying drawings: 1. Frame; 11. Collecting trough; 2. Sponge; 3. Conveying mechanism; 31. Conveying roller; 32. Support roller; 33. Conveyor belt; 34. First drive motor; 4. Bracket; 41. Support seat; 42. Support plate; 43. Support beam; 5. Gluing mechanism; 6. Material barrel; 7. Discharge pipe; 71. Discharge end; 8. Gluing assembly; 81. Mounting frame; 811. First mounting plate; 812. Second mounting plate; 82. Gluing roller; 821. Adsorption strip; 822. Diaphragm; 83. Abutting roller; 84. Driving member; 841. Gear box; 842. Second drive motor; 85. Placement trough; 86. First scraper; 87. Second scraper; 88. Insert plate; 89. Limiting plate; 9. Lifting assembly; 91. Sliding plate; 92. Screw; 93. Third drive motor. DETAILED DESCRIPTION

[0030] The following is combined with Figure 1-4 , further details of this application are given.

[0031] The embodiment of the present application discloses a laminating machine for polyurethane sponge.

[0032] Example 1:

[0033] A polyurethane sponge laminating machine, referring to the figure, includes a frame 1, a conveying mechanism 3 arranged on the frame 1 for transmitting a sponge 2, a bracket 4 arranged on the frame 1, and a gluing mechanism 5 arranged on the bracket 4 for gluing the conveyed sponge 2.

[0034] Among them, the conveying mechanism 3 specifically includes two conveying rollers 31 respectively rotatably connected to the two ends of the frame 1, a support roller 32 rotatably connected to the frame 1, a conveyor belt 33 wound around the conveying rollers 31, and a first drive motor 34 fixedly connected to the frame 1, wherein the support rollers 32 are arranged between the conveying rollers 31, and a number of support tubes are arranged at intervals along the length direction of the frame 1. The output shaft of the first drive motor 34 is rotatably passed through the frame 1 and fixedly connected to one of the conveying rollers 31.

[0035] Among them, the bracket 4 includes a support base 41 arranged under the frame 1, two support plates 42 respectively arranged on both sides of the frame 1, and a support beam 43 fixedly connected between the two support plates 42. The support plate 42 is vertically arranged, and the lower end of the support plate 42 is fixedly connected to the two ends of the support base 41. The length direction of the support beam 43 is parallel to the width direction of the frame 1.

[0036] Reference Figure 1 、 Figure 2 , wherein the gluing mechanism 5 includes a material barrel 6 placed on the support beam 43, a discharge pipe 7 passing through the material barrel 6 and the support beam 43, a gluing component 8 arranged below the discharge pipe 7, and a lifting component 9 arranged on the bracket 4 for driving the gluing component 8 to rise and fall. A through-hole is opened on the upper surface of the support beam 43 for the discharge pipe 7 to pass through. In this embodiment, the discharge pipe 7 is arranged in an inverted Y-shaped tube, and the discharge pipe 7 has two discharge ends 71, which are arranged at intervals along the width direction of the frame 1.

[0037] The gluing assembly 8 specifically includes a mounting frame 81 disposed below the support beam 43, a gluing roller 82 rotatably connected to the mounting frame 81, an abutting roller 83 abutting against the gluing roller 82, and two driving members 84 for respectively driving the gluing roller 82 and the abutting roller 83 to rotate. In this embodiment, the mounting frame 81 specifically includes two vertically arranged first mounting plates 811 and a second mounting plate 812 fixedly connected between the two first mounting plates 811. The length direction of the second mounting plate 812 is parallel to the length direction of the support beam 43. The discharge end 71 of the discharge pipe 7 is passed through the second mounting plate 812.

[0038] Reference Figure 2 、 Figure 3The ends of the glue roller 82 and the abutting roller 83 are rotatably connected to the adjacent surfaces of the two first mounting plates 811. A placement groove 85 for receiving the rubber material output by the discharge pipe 7 is provided between the glue roller 82 and the abutting roller 83. The diameter of the glue roller 82 is larger than the diameter of the abutting roller 83, and the distance between the abutting roller 83 and the sponge 2 is larger than the distance between the glue roller 82 and the sponge 2. The ends of the glue roller 82 and the abutting roller 83 extend to both sides of the frame 1. The outer peripheral wall of the glue roller 82 is provided with a plurality of adsorption strips 821 for adsorbing the rubber material. The adsorption strips 821 are arranged at intervals along the length of the glue roller 82. A diaphragm 822 is provided between the adsorption strips 821 and the glue roller 82. The diaphragm 822 is bonded to the glue roller 82, and the adsorption strips 821 are fixedly connected to the diaphragm 822.

[0039] The driving member 84 specifically includes a gearbox 841 fixedly connected to one of the first mounting plates 811, and a second drive motor 842 fixed to the output shaft of the gearbox 841. The output shafts of the two gearboxes 841, which are remote from the drive motors, are both inserted into the mounting frame 81 to be fixed to the glue roller 82 and the abutting roller 83, respectively. In this embodiment, the glue roller 82 and the abutting roller 83 rotate in opposite directions, and both rotate toward the rubber material in the placement groove 85.

[0040] Furthermore, to collect the rubber material that overflows onto the ends of the glue coating roller 82 and the abutting roller 83, as well as the condensed rubber material, in this embodiment, collection troughs 11 are provided on both sides of the frame 1 below the glue coating roller 82. A first scraper 86 that abuts the glue coating roller 82 and a second scraper 87 that abuts the outer peripheral wall of the abutting roller 83 are protruding from the lower surface of the second mounting plate 812. In this embodiment, the first scraper 86 and the second scraper 87 are both plastic plates. Two of the first scraper 86 and the second scraper 87 are provided, each located near the ends of the glue coating roller 82. Both the first scraper 86 and the second scraper 87 are detachably connected to the mounting plate. Specifically, an insert plate 88 is fixed to the mounting plate. The first scraper 86 and the second scraper 87 are inserted into the insert plate 88 and then threadedly connected to the insert plate 88 via bolts. A limit plate 89 is provided protruding from the second scraper 87, which abuts the glue coating roller 82.

[0041] Among them, the lifting assembly 9 specifically includes a sliding plate 91 connected to the first mounting plate 811, a screw rod 92 passing through the sliding plate 91, and a third drive motor 93 that drives the screw rod 92 to rotate. There are two sliding plates 91 and they are respectively arranged at both ends of the mounting frame 81. The sliding plate 91 is protruding with a slider, and the support plate 42 is provided with a sliding groove for the sliding connection of the slider along the height direction. The third drive motor 93 is fixedly connected to the upper surface of the support seat 41, the upper end of the screw rod 92 is rotatably connected to the lower surface of the support beam 43, and the lower end of the screw rod 92 is fixedly connected to the output shaft of the third drive motor 93.

[0042] The implementation principle of the polyurethane sponge gluing machine in the embodiment of the present application is as follows: before gluing the sponge 2, the driving part 84 is first started to drive the gluing roller 82 to rotate, so that the adsorption strip 821 on the gluing roller 82 passes through the glue material in the placement groove 85 for adsorption. As the lifting component 9 adjusts the height position of the gluing roller 82 corresponding to the sponge 2, when the conveying mechanism 3 conveys the sponge 2, after the sponge 2 passes through the gap between the gluing roller 82 and the conveying mechanism, as the gluing roller 82 rotates, the glue adsorbed by the adsorption strip 821 on the gluing roller 82 is smeared on the sponge 2 for smearing. Since the adsorption strip 821 after smearing will rotate into the placement groove 85 again to adsorb the glue material, compared with gluing by spraying, the possibility of falling outside due to the influence of the reaction force can be reduced, and the gluing of the sponge 2 is relatively uniform. Compared with the method of applying directly with a brush, it can continuously supply glue, reducing the possibility of insufficient glue application after the brush is applied, thereby improving the uniformity of the glue application and further improving the bonding effect between the multiple layers of sponges 2.

[0043] Example 2:

[0044] Reference Figure 4 The difference from Example 1 is that in this embodiment, the first scraper 86 is arranged in an arc shape along the rotation direction of the glue coating roller 82, and the second scraper 87 is arranged in an arc shape along the rotation direction of the abutting roller 83. One side wall of the first scraper 86 and the second scraper 87 are exposed to the end surface of the glue coating roller 82 and the abutting roller 83 respectively, so as to improve the collection of scraped waste rubber.

[0045] The above are all preferred embodiments of the present application, and are not intended to limit the scope of protection of the present application. Therefore, any equivalent changes made based on the structure, shape, and principle of the present application should be included in the scope of protection of the present application.

Claims

1. A polyurethane sponge laminating machine, characterized by: The invention comprises a frame (1), a conveying mechanism (3) arranged on the frame (1) for conveying a sponge (2), a bracket (4) arranged on the frame (1), and a gluing mechanism (5) arranged on the bracket (4) for gluing the conveyed sponge (2); the gluing mechanism (5) comprises a barrel (6) arranged on the bracket (4), a discharge pipe (7) passing through the barrel (6) and the bracket (4), a gluing assembly (8) arranged below the discharge pipe (7), and a lifting assembly (9) arranged on the bracket (4) for driving the gluing assembly (8) to rise and fall, wherein the gluing assembly (8) The invention comprises a mounting frame (81), a glue coating roller (82) rotatably connected to the mounting frame (81), an abutting roller (83) abutting against the glue coating roller (82), and two driving members (84) for driving the glue coating roller (82) and the abutting roller (83) to rotate respectively. A placement groove (85) for receiving the glue outputted by the discharge pipe (7) is reserved between the glue coating roller (82) and the abutting roller (83). An adsorption strip (821) for adsorbing the glue is protruded from the outer peripheral wall of the glue coating roller (82). A plurality of the adsorption strips (821) are arranged at intervals along the length direction of the glue coating roller (82).

2. A polyurethane sponge laminating machine according to claim 1, characterized in that: The diameter of the glue coating roller (82) is greater than the diameter of the abutting roller (83), and the distance between the abutting roller (83) and the sponge (2) is greater than the distance between the glue coating roller (82) and the sponge (2).

3. The polyurethane sponge laminating machine according to claim 1, characterized in that: The directions of rotation of the glue coating roller (82) and the abutting roller (83) are opposite, and both the glue coating roller (82) and the abutting roller (83) rotate toward the glue in the placement groove (85).

4. The polyurethane sponge laminating machine according to claim 1, characterized in that: A diaphragm (822) is provided between the adsorption strip (821) and the glue coating roller (82), the diaphragm (822) is bonded to the glue coating roller (82), and the adsorption strip (821) is fixedly connected to the diaphragm (822).

5. The polyurethane sponge laminating machine according to claim 1, characterized in that: The ends of the glue coating roller (82) and the abutting roller (83) extend to both sides of the frame (1), and collecting troughs (11) are provided on both sides of the frame (1) below the glue coating roller (82). The mounting frame (81) is provided with a first scraper (86) abutting against the glue coating roller (82) and a second scraper (87) abutting against the outer peripheral wall of the abutting roller (83), respectively. Both the first scraper (86) and the second scraper (87) are provided in pairs and are arranged near the two ends of the glue coating roller (82).

6. A polyurethane sponge laminating machine according to claim 5, characterized in that: The first scraper (86) is arranged in an arc shape along the rotation direction of the glue coating roller (82), and the second scraper (87) is arranged in an arc shape along the rotation direction of the abutting roller (83). One side wall of the first scraper (86) and the second scraper (87) are respectively exposed to the end faces of the glue coating roller (82) and the abutting roller (83).

7. The polyurethane sponge laminating machine according to claim 5, characterized in that: The second scraper (87) is provided with a limit plate (89) protruding therefrom, and the limit plate (89) abuts against the glue coating roller (82).

8. The polyurethane sponge laminating machine according to claim 1, characterized in that: The driving member (84) includes a gear box (841) fixedly connected to the side wall of the mounting frame (81) and a second driving motor (842) fixed to the output shaft of the gear box (841). The output shafts of the two gear boxes (841) away from the driving motors are both passed through the mounting frame (81) to be fixed to the glue coating roller (82) and the abutting roller (83), respectively.

9. The polyurethane sponge laminating machine according to claim 1, characterized in that: The lifting assembly (9) includes a sliding plate (91) connected to the mounting frame (81), a screw rod (92) passing through the sliding plate (91), and a third driving motor (93) for driving the screw rod (92) to rotate. The sliding plates (91) are provided with two and are respectively provided at both ends of the mounting frame (81). The sliding plates (91) are provided with a slider protruding therefrom, and the bracket (4) is provided with a sliding groove for sliding connection of the slider along the height direction.

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