CN117087175A

CN117087175A - Mattress manufacturing method, extrusion equipment and hot melting equipment

Info

Publication number: CN117087175A
Application number: CN202311064024.9A
Authority: CN
Inventors: 孙福胜
Original assignee: Zhejiang Ailun New Material Co ltd
Current assignee: Zhejiang Ailun New Material Co ltd
Priority date: 2023-08-22
Filing date: 2023-08-22
Publication date: 2023-11-21

Abstract

The application relates to the field of mattress manufacture, in particular to a mattress manufacturing method, which comprises the following steps of aligning and superposing layers of a mattress and extruding until the thickness of the mattress is required to form a mattress unit; heating the mattress unit to enable the surfaces of all layers in the mattress unit to be melted; the mattress unit is cooled, so that the surfaces of all layers of the mattress unit are adhered to each other, a mattress finished product is obtained, and after all layers of the mattress are extruded to the standard thickness, the density of the mattress is improved on the one hand, the surfaces of all layers of the mattress are tightly attached to each other, and when the mattress is cooled after being heated, all layers of the mattress are better tightly connected.

Description

Mattress manufacturing method, extrusion equipment and hot melting equipment

Technical Field

The application relates to the field of mattress manufacturing, in particular to a mattress manufacturing method, extrusion equipment and hot melting equipment.

Background

The mattress is used as household articles for people to sleep, the quality of the mattress is easy to greatly influence the sleep quality of a user, and therefore, the mattress is formed by overlapping a plurality of layers which are made of different materials, have different hardness and reach different functions, and meanwhile, more mattresses can present environmental protection and formaldehyde-free standards, namely, glue is not used in the manufacturing process of the mattress.

For example, a glue-free adhesive mattress with the prior publication number of CN109247758A and a processing technology thereof are provided, and all layers of the mattress are connected by sewn magic tapes.

With respect to the related art, the connection strength between the layers of the mattress is difficult to be ensured, and the mattress is difficult to maintain in the original state due to the fact that the layers are easy to shift during the long-time use process of the mattress.

Disclosure of Invention

In order to better maintain the original shape of the mattress, the application provides a mattress manufacturing method, extrusion equipment and hot melting equipment.

The application provides a mattress manufacturing method which adopts the following technical scheme.

A mattress manufacturing method specifically comprises the following steps.

Step 1, aligning and overlapping all layers of the mattress and extruding until the thickness of the mattress is required to form a mattress unit;

step 2, heating the mattress unit to enable the surfaces of all layers in the mattress unit to be melted;

and 3, cooling the mattress unit to enable the surfaces of all layers of the mattress unit to be adhered to each other, so as to obtain a mattress finished product.

By adopting the technical scheme, each layer of the mattress is extruded firstly to improve the density of the final mattress finished product, so that the mattress finished product can have better service life, and the mattress layers are tightly attached to each other, so that when the mattress unit is heated subsequently, the melted surfaces of each layer of the mattress can be fully adhered after being cooled, the connection strength between each layer of the mattress finished product is improved, and the mattress finished product is not easy to change greatly in shape after being used for a long time.

The application also provides extrusion equipment which adopts the following technical scheme.

The extrusion equipment extrudes all layers of the mattress according to the step 1 in the mattress manufacturing method, and the extrusion equipment comprises a frame, a bottom plate arranged on the frame, a lower pressing plate arranged on the bottom plate and used for placing all layers of the mattress after superposition, a moving plate connected with the frame in a sliding manner, an upper pressing plate which can be attached to the moving plate and used for extruding the lower pressing plate, and a moving plate oil cylinder arranged on the frame and used for driving the moving plate to move, wherein the upper pressing plate and the lower pressing plate are detachably connected.

Through adopting above-mentioned technical scheme, place the mattress each layer on the holding down plate, place the top board on the mattress each layer again, then move the board and move down in order to press down the mattress each layer to required thickness, then connect between top board and the holding down plate again to when heating the mattress unit, the thickness of mattress unit is difficult for changing, also makes the abundant zonulae occludens of ability between the mattress each layer after the cooling.

Optionally, the four corners of the upper pressing plate are fixedly connected with upper threaded sleeves, the four corners of the lower pressing plate are fixedly connected with lower threaded sleeves, and a corresponding upper threaded sleeve and a corresponding lower threaded sleeve are in threaded connection with compression screws.

By adopting the technical scheme, the upper pressing plate and the lower pressing plate can fully squeeze each layer of the mattress, so that the thicknesses of all the layers of the mattress are consistent.

Optionally, the top board sliding connection has four alignment bars, and four alignment bars one-to-one correspond around the top board, and every alignment bar moves towards the top board central line, and the top board is equipped with the alignment hydro-cylinder that drives the alignment bar and remove.

Through adopting above-mentioned technical scheme, before carrying out the extrusion, can be better align between top board, mattress each layer and the holding down plate to reduce the position adjustment work load that needs go on to mattress each layer and top board before the extrusion, also be convenient for carry out convenient connection to top board and holding down plate.

Optionally, the surface of the lower pressing plate and the surface of the upper pressing plate are provided with a plurality of plate holes in a penetrating way.

By adopting the technical scheme, when the subsequent mattress unit is heated, the hot air can be in good direct contact with the side surfaces of the mattress unit, which are in contact with the lower pressing plate and the upper pressing plate, so that the mattress unit is heated more fully, and after heating, the heating of each layer of the mattress positioned at the middle position of the mattress unit can be reduced, and the mattress unit can be heated as fully as possible.

Optionally, the frame corresponds every lower swivel nut and all can dismantle and be connected with the mount table, and the mount table is equipped with lift cylinder, lift cylinder power pole fixedly connected with pole piece, pole piece fixedly connected with gear motor, the coaxial fixedly connected with of gear motor output shaft peg graft in sticiss screw rod and make sticiss screw rod can carry out pivoted inserted bar in step.

Through adopting above-mentioned technical scheme, after each layer extrusion of mattress is the mattress unit of certain thickness, the inserted bar can peg graft in the screw rod that sticiss to make the screw rod that sticiss correspond upper thread insert and lower thread insert and screw in, so as to connect between upper plate and the lower clamp plate, and screw in after the screw rod that sticiss screw in lower thread insert again to the upper thread insert after, the interval between upper plate and the lower clamp plate is difficult for also changing, makes the thickness after the mattress unit adjustment be difficult for taking place the change.

Optionally, the pole piece includes fixed connection in the cover piece of lift hydro-cylinder power pole, peg graft in the cover piece and fixed connection in gear motor's inserted block, fixed connection in the cover piece supply the inserted port frame of one end department of pegging graft, fixed connection in the interior piece that the inserted block is arranged in the cover piece one end and can the butt in the port frame, locate the cover piece and force the compression spring of inserted block keeping away from the cover piece.

Through adopting above-mentioned technical scheme, when need will sticis the screw rod and can not correspond down the swivel nut soon, compression spring can compress a weak point length earlier, after the screw rod is corresponding down the swivel nut and is screwed in, compression spring just can stop by compression this moment, be difficult for producing too big pressure when carrying out threaded connection between sticis screw rod and the swivel nut down, and when placing mattress finished product in the bottom plate in order to follow sticis the screw rod and unscrew down in the swivel nut, the inserted bar can not peg graft immediately in sticis the screw rod, the inserted bar terminal surface need butt earlier rotate certain angle in sticis the screw rod terminal surface and just can insert, and compression spring can be compressed this moment, be difficult for having too big pressure between inserted bar and the sticis screw rod.

The application also provides a hot melting device which adopts the following technical scheme.

The hot melting equipment heats the mattress unit according to the step 2 in the mattress manufacturing method, and comprises a box body, box doors which are arranged on two opposite sides of the box body and can seal the box body, steam pipes which are arranged in a serpentine manner and arranged on the inner wall of the box body, and a positive pressure fan and a negative pressure fan which are arranged on the side surface of the box body and enable air in the box body to keep flowing.

Through adopting above-mentioned technical scheme for everywhere temperature is comparatively even in the box to carry out abundant heating to the mattress unit, and the box both sides all set up the chamber door, in order to pull out the cooling with the mattress finished product after the heating is accomplished, in will waiting the mattress finished product of heating and send into the box, in order to accelerate the heating efficiency to batch mattress unit.

Optionally, a support is placed in the box body, the support is provided with a plurality of groups of support channels, and each group of support channels is used for placing a mattress unit.

By adopting the technical scheme, a plurality of mattress units are heated simultaneously, and all mattress units are conveniently pulled out of or sent into the box body by using an external tool.

Optionally, the frame is said to be connected with the in-the-way lead screw, the in-the-way lead screw locates coaxial fixedly connected with carousel in the one end that lies outside the frame, the in-the-way lead screw threaded connection has two interior wedge blocks of sliding connection in the frame, the in-the-way sliding connection has two outer wedge blocks that are pushed by interior wedge block and can expose the frame in order to carry on spacing to the mattress unit, two limit blocks of fixedly connected with in the frame, interior wedge block lies in between two limit blocks in order to make interior wedge block and outer wedge block keep the butt.

By adopting the technical scheme, in the heating process, the mattress is not easy to move on the support due to the fact that the airflow continuously flows in the box body due to the action of the positive pressure fan and the negative pressure fan.

In summary, the present application includes at least one of the following beneficial effects:

1. the layers of the mattress are tightly attached to each other, so that when the mattress unit is heated later, the melted surfaces of the layers of the mattress can be more fully adhered after being cooled, the connection strength of the layers of the mattress finished product is improved, and the mattress finished product is better maintained to be not easy to change in shape after being used for a long time;

2. the temperature in the box body is uniform so as to fully heat the mattress unit.

Drawings

FIG. 1 is a schematic view of an extrusion apparatus according to the present application;

FIG. 2 is a schematic view of the structure with one side of the frame removed and with one bar block in cross section;

FIG. 3 is an enlarged view at A in FIG. 2;

FIG. 4 is a schematic view of a structure of a thermal melting apparatus according to the present application;

FIG. 5 is a schematic view showing a cross-sectional structure of a side of the cabinet provided with the door;

FIG. 6 is a schematic view of a frame with one side cut away and a partially cut away view of one end of a frame with an in-channel lead screw;

fig. 7 is an enlarged view at B in fig. 6.

Reference numerals illustrate: 1. a frame; 2. a bottom plate; 21. an outer wedge; 22. a movement limiting block; 23. a plate opening; 24. a hole plate in the box; 3. a lower pressing plate; 31. sleeving blocks; 32. inserting blocks; 33. a port frame; 34. an inner block; 35. a compression spring; 36. a negative pressure fan; 37. an in-channel lead screw; 38. a turntable; 39. an inner wedge block; 4. moving the plate; 41. a steam pipe; 42. a positive pressure fan; 43. a bracket; 44. a frame way; 45. a mounting table; 46. a lifting oil cylinder; 47. a pole block; 48. a speed reducing motor; 49. a rod; 5. an upper press plate; 51. a plate moving oil cylinder; 52. an upper screw sleeve; 53. a lower screw sleeve; 54. compacting a screw; 55. an alignment rod; 56. pair Ji Yougang; 57. a plate hole; 58. a case; 59. a box door.

Detailed Description

The present application will be described in further detail with reference to the accompanying drawings.

The embodiment of the application discloses a mattress manufacturing method, which specifically comprises the following steps of.

Step 1, aligning and overlapping all layers of the mattress and extruding until the thickness of the mattress is required to form a mattress unit, wherein the thickness of the mattress unit is 40cm to 60cm after the layers of the mattress are overlapped, and the standard thickness of the mattress unit is 30cm;

step 2, heating the mattress unit to 150-180 ℃ to enable the surfaces of all layers in the mattress unit to be melted, wherein the surfaces of all layers of the mattress can be made of materials with low melting points such as ES fibers or 4080 fibers;

and 3, cooling the mattress unit at room temperature to ensure that the surfaces of all layers of the mattress unit are adhered and fixed to obtain a mattress finished product.

The implementation principle of the mattress manufacturing method of the embodiment of the application is as follows: the laminated mattress layers are extruded to enable the manufactured mattress unit to reach the standard thickness, and then the mattress unit is heated and cooled after keeping the standard thickness, so that the surfaces of the mattress layers are fastened and connected first.

The embodiment of the application also discloses extrusion equipment, which is used for extruding each layer of the mattress according to the step 1 in the manufacturing method of the mattress, and referring to fig. 1 and 2, the extrusion equipment comprises a frame 1 which is vertically placed on the ground, wherein the frame 1 is fixedly connected with a horizontal bottom plate 2, the upper surface of the bottom plate 2 is provided with a horizontal bottom plate 3, and a plurality of universal balls can be densely distributed on the upper surface of the bottom plate 2, so that the bottom plate 3 can smoothly move on the bottom plate 2. The upper surface of the lower pressing plate 3 is used for stacking and placing all layers of mattresses along the vertical direction, the upper surface of each layer of stacked mattresses is provided with a horizontal upper pressing plate 5, the upper pressing plate 5 and the lower pressing plate 3 are aligned along the vertical direction, the machine frame 1 is connected with a horizontal moving plate 4 in a sliding manner along the vertical direction, the bottom surface of the moving plate 4 is abutted to the upper surface of the upper pressing plate 5, the machine frame 1 is fixedly connected with a power rod which is a vertical moving plate oil cylinder 51, and the bottom end of the power rod of the moving plate oil cylinder 51 is fixedly connected with the upper surface of the moving plate 4, so that all layers of mattresses can be compressed.

Referring to fig. 2, four vertical alignment rods 55 are slidably connected to the upper surface of the moving plate 4, the four alignment rods 55 are in one-to-one correspondence with four horizontal sides of the upper platen 5, each alignment rod 55 moves toward the horizontal side of the upper platen 5, four alignment cylinders 56 are fixedly connected to the upper surface of the moving plate 4, and each alignment cylinder 56 is fixedly connected to a corresponding alignment rod 55, so that after the upper platen 5 is placed, the alignment rods 55 move close to the sides of the upper platen 5, each layer of the mattress and the lower platen 3, so that the upper platen 5, each layer of the mattress and the lower platen 3 are aligned in the vertical direction, and then the moving plate 4 is abutted against the upper platen 5 to compress each layer of the mattress. Two alignment rods 55 corresponding to two sides close to the frame 1 on the upper surface of the bottom plate 2 penetrate through the plate openings 23, each plate opening 23 is provided for a corresponding alignment rod 55 to enter and move, and two ends of the upper pressing plate 5 and the lower pressing plate 3 far away from the frame 1 are not located right above the bottom plate 2, so that the bottom end height of the alignment rod 55 can be smoothly lower than the height of the lower pressing plate 3, and the alignment rod 55 is abutted to the vertical side face of the lower pressing plate 3.

Referring to fig. 2, the lower press plate 3 is fixedly connected with lower screw sleeves 53 which are vertical at four corners, the upper press plate 5 is fixedly connected with upper screw sleeves 52 which are vertical at four corners, each lower screw sleeve 53 is aligned with one upper screw sleeve 52 in the vertical direction, the same compression screw 54 is connected between the corresponding lower screw sleeve 53 and the upper screw sleeve 52 in a threaded manner, so that the mattress unit can maintain standard thickness during heating, and the projections of the upper screw sleeve 52 and the lower screw sleeve 53 on the bottom plate 2 are positioned outside the bottom plate 2. Meanwhile, the upper pressing plate 5 and the lower pressing plate 3 are provided with a plurality of plate holes 57 in a penetrating mode, so that when the mattress unit is heated subsequently, the mattress unit is attached to the surfaces of the upper pressing plate 5 and the lower pressing plate 3, and sufficient heating can be achieved.

Referring to fig. 2 and 3, a mounting table 45 is detachably connected to each lower threaded sleeve 53 of the frame 1, a power rod is fixedly connected to the upper surface of the mounting table 45 and is a vertical lifting cylinder 46, a rod block 47 is mounted at the top end of the power rod of the lifting cylinder 46, the rod block 47 comprises a sleeve block 31 fixedly connected to the power rod of the lifting cylinder 46, an insert block 32 is sleeved on the upper surface of the sleeve block 31 along the vertical direction, an inner block 34 is fixedly connected to one end of the insert block 32 in the sleeve block 31, a port frame 33 for the insert block 32 to penetrate is fixedly connected to the upper surface of the sleeve block 31, the upper surface of the inner block 34 can abut against the bottom surface of the port frame 33, so that the insert block 32 is difficult to separate from the sleeve block 31, a compression spring 35 is fixedly connected to the sleeve block 31, and the compression spring 35 forces the insert block 32 to be far away from the sleeve block 31. The upper surface of the insert block 32 is fixedly connected with a gear motor 48, an output shaft of the gear motor 48 is fixedly connected with an insert rod 49 with the same central line, the horizontal section of the insert rod 49 can be polygonal, the horizontal section of the insert rod 49 in the embodiment is regular hexagon, the insert rod 49 can be inserted with the same central line along the vertical direction and slide at the bottom end of the compression screw 54, and the insert rod 49 can stably drive the compression screw 54 to rotate.

The embodiment of the application provides extrusion equipment, which comprises the following implementation principles: the mattress layers are placed between the lower pressing plate 3 and the upper pressing plate 5, then the alignment oil cylinder 56 drives the alignment rod 55 to move so as to align the upper pressing plate 5, the mattress layers and the lower pressing plate 3 in the vertical direction, then the plate moving oil cylinder 51 drives the plate moving 4 to move downwards so as to enable the upper pressing plate 5 to be close to the lower pressing plate 3, so that the mattress layers are extruded into mattress units, then the compression screw 54 is sleeved corresponding to the inserting rod 49, the lifting oil cylinder 46 drives the compression screw 54 to move upwards, and meanwhile, the speed reducing motor 48 drives the compression screw 54 to rotate so that the compression screw 54 can be connected with the inner walls of the lower screw sleeve 53 and the upper screw sleeve 52 in a threaded mode, the distance between the upper pressing plate 5 and the lower pressing plate 3 is not easy to change, and then the plate moving 4 moves upwards so as to push down the mattress units from the bottom plate 2.

The embodiment of the application also discloses a hot melting device, which heats the mattress unit according to the step 2 in the manufacturing method of the mattress, referring to fig. 4 and 5, the hot melting device comprises a box 58 placed on the ground, the box 58 is rotatably connected with a box door 59 on two opposite vertical sides, the rotation axis of the box door 59 is vertical, and the box door 59 can seal the box 58. The steam pipe 41 is arranged in a serpentine manner on the top surface and the bottom surface of the inside of the box 58 and near the two side surfaces of the box door 59, so that the steam pipe 41 has a longer path in the box 58, and the heat of the steam can be fully conducted into the air in the box 58 through the steam pipe 41

Referring to fig. 5, the positive pressure fan 42 and the negative pressure fan 36 are installed on opposite sides of the steam pipe 41 in a one-to-one correspondence manner, the positive pressure fan 42 is located on the top surface and one vertical side surface of the box 58 in a two-to-one correspondence manner, the negative pressure fan 36 is located on the bottom surface of the box 58 in a one-to-one correspondence manner and is located on the vertical side surface far away from the positive pressure fan 42, an air outlet of the negative pressure fan 36 located on the bottom surface of the box 58 is communicated to an air inlet of the positive pressure fan 42 located on the vertical side surface of the box 58, and an air outlet of the negative pressure fan 36 located on the vertical side surface of the box 58 is communicated to an air inlet of the positive pressure fan 42 located on the top surface of the box 58, so that air in the box 58 is circulated continuously, and uniformity of temperatures in various places in the box 58 is improved.

Referring to fig. 5 and 6, the bottom in the box 58 is detachably connected with a horizontal hole plate 24 in the box, the upper surface of the hole plate 24 in the box is perforated with a plurality of round holes for smooth circulation of air up and down of the box 58, the upper surface of the hole plate 24 in the box can move into a bracket 43, rollers are rotatably arranged at the bottom of the bracket 43 and cannot sink into the round holes of the hole plate 24 in the box, a plurality of groups of horizontal frame channels 44 are uniformly and fixedly connected with the bracket 43 along the vertical direction, each group of frame channels 44 is provided for placing a mattress unit in a horizontal state, each group of frame channels 44 is provided with two mattress units in equal height, and universal balls can be arranged on the upper surface of the frame channels 44 for smooth movement of the lower surface of the lower pressure plate 3 on the frame channels 44. At the same time, the two sides of the box 58 provided with the box door 59 are provided with slopes for the bracket 43 to be smoothly pushed into the box 58.

Referring to fig. 6 and 7, one of the lanes 44 in each group is rotatably connected with an in-lane screw 37, the in-lane screw 37 is coaxially and fixedly connected with a turntable 38 exposed out of the end of the lane 44, the in-lane screw 37 is penetrated and is in threaded connection with a group of two inner inclined wedges 39, the inner inclined wedges 39 are slidably connected inside the lanes 44, the upper inclined surfaces of the inner inclined wedges 39 are abutted with the outer inclined wedges 21, so that the outer inclined wedges 21 can be exposed out of the upper surface of the lanes 44 or retract into the lanes 44 along with the movement of the inner inclined wedges 39, the lower pressure plate 3 is positioned between the two outer inclined wedges 21 to obtain limit, the mattress unit is not easy to move randomly, and the two sides of the length direction of the lower pressure plate 3 can be limited by the brackets 43. Meanwhile, a group of two movement limiting blocks 22 are fixedly connected to the corresponding inner wedge 39 in the frame channel 44, and the inner wedge 39 is positioned between the group of two movement limiting blocks 22, so that the inner wedge 39 is not easy to move excessively, and the inclined plane of the inner wedge 39 can always be abutted against the inclined plane of the outer wedge 21.

The implementation principle of the hot melting equipment in the embodiment of the application is as follows: when one bracket 43 is fully filled with the mattress unit, the bracket 43 is moved into the box 58, then the box door 59 is closed, then high-temperature steam is introduced into the steam pipe 41, the positive pressure fan 42 sends air into the box 58, then the negative pressure fan 36 pumps out the air in the box 58, and the air outlets of the negative pressure fan 36 and the air inlets of the positive pressure fan 42 are correspondingly communicated, so that the air in the box 58 can be circulated continuously, and the temperature in the box 58 can be quickly raised and kept uniform. After a certain period of time, for example 1h, the delivery of steam in the steam pipe 41 is stopped and the door 59 is opened, after which the support 43 is removed from the box 58 for a period of time, in order to heat the mattress units in the next support 43.

The above embodiments are not intended to limit the scope of the present application, so: all equivalent changes in structure, shape and principle of the application should be covered in the scope of protection of the application.

Claims

1. A method of manufacturing a mattress, characterized by: the method specifically comprises the following steps:

2. An extrusion apparatus for extruding layers of a mattress according to step 1 of a mattress manufacturing method according to claim 1, characterized in that: the mattress comprises a frame (1), a bottom plate (2) arranged on the frame (1), a lower pressing plate (3) arranged on the bottom plate (2) and used for placing all layers of a mattress after superposition, a moving plate (4) which is connected with the frame (1) in a sliding manner, an upper pressing plate (5) which can be attached to the moving plate (4) and used for extruding the lower pressing plate (3), and a moving plate oil cylinder (51) which is arranged on the frame (1) and used for driving the moving plate (4) to move, wherein the upper pressing plate (5) and the lower pressing plate (3) are detachably connected.

3. An extrusion apparatus as recited in claim 2, wherein: the four corners of the upper pressing plate (5) are fixedly connected with upper threaded sleeves (52), the four corners of the lower pressing plate (3) are fixedly connected with lower threaded sleeves (53), and a corresponding upper threaded sleeve (52) and a corresponding lower threaded sleeve (53) are in threaded connection with a compression screw (54).

4. An extrusion apparatus as recited in claim 2, wherein: the upper pressing plate (5) is connected with four alignment rods (55) in a sliding mode, the four alignment rods (55) are in one-to-one correspondence with the periphery of the upper pressing plate (5), each alignment rod (55) moves towards the center line of the upper pressing plate (5), and the upper pressing plate (5) is provided with a pair Ji Yougang (56) driving the alignment rods (55) to move.

5. An extrusion apparatus as recited in claim 2, wherein: the surfaces of the lower pressing plate (3) and the upper pressing plate (5) are provided with a plurality of plate holes (57) in a penetrating mode.

6. A pressing apparatus according to claim 3, wherein: the machine frame (1) is detachably connected with an installation table (45) corresponding to each lower threaded sleeve (53), the installation table (45) is provided with a lifting oil cylinder (46), a power rod of the lifting oil cylinder (46) is fixedly connected with a rod block (47), the rod block (47) is fixedly connected with a gear motor (48), and an output shaft of the gear motor (48) is coaxially and fixedly connected with an inserting rod (49) which is inserted into the compressing screw (54) and enables the compressing screw (54) to synchronously rotate.

7. An extrusion apparatus as recited in claim 6, wherein: the rod block (47) comprises a sleeve block (31) fixedly connected to a power rod of the lifting oil cylinder (46), an inserting block (32) inserted into the sleeve block (31) and fixedly connected to the gear motor (48), a port frame (33) fixedly connected to the sleeve block (31) at the inserting end of the inserting block (32), an inner block (34) fixedly connected to the inserting block (32) at one end of the sleeve block (31) and capable of being abutted to the port frame (33), and a compression spring (35) arranged on the sleeve block (31) and forcing the inserting block (32) to be far away from the sleeve block (31).

8. A hot melt apparatus for heating mattress units according to step 2 of a mattress manufacturing method according to claim 1, characterized in that: the air-conditioning device comprises a box body (58), box doors (59) which are arranged on two opposite sides of the box body (58) and can seal the box body (58), steam pipes (41) which are arranged on the inner wall of the box body (58) in a serpentine manner, and a positive pressure fan (42) and a negative pressure fan (36) which are arranged on the side face of the box body (58) and enable air in the box body (58) to keep flowing.

9. A hot melt apparatus as claimed in claim 8, wherein: a bracket (43) is arranged in the box body (58), the bracket (43) is provided with a plurality of groups of frame channels (44), and each group of frame channels (44) is used for placing a mattress unit.

10. A hot melt apparatus as claimed in claim 9, wherein: the frame way (44) is rotationally connected with a lead screw (37) in the way, one end of the lead screw (37) outside the frame way (44) is coaxially and fixedly connected with a rotary table (38), the lead screw (37) in the way is in threaded connection with two inner inclined wedges (39) which are in sliding connection with the frame way (44), the frame way (44) is in sliding connection with two outer inclined wedges (21) which are pushed by the inner inclined wedges (39) and can expose the frame way (44) to limit a mattress unit, two movement limiting blocks (22) are fixedly connected in the frame way (44), and the inner inclined wedges (39) are positioned between the two movement limiting blocks (22) so that the inner inclined wedges (39) and the outer inclined wedges (21) can be in butt connection.