Trimming device for leather production

Abstract

The utility model relates to a trimming device for leather production, which comprises a rack, a conveying belt and a portal frame crossing over the conveying belt are arranged on the rack, a plurality of pressing rollers positioned above the conveying surface of the conveying belt are rotatably arranged on the portal frame, and two groups of trimming mechanisms respectively positioned on two sides of the conveying belt are symmetrically arranged on the portal frame. The trimming mechanism comprises a trimming support and a trimming knife, and the cross section of the trimming support is in a transverse U shape, so that the trimming support is provided with an opening facing the conveying belt and an edge supporting plate flush with the conveying face of the conveying belt. The trimming support can be arranged on the portal frame in a sliding mode in the direction perpendicular to the conveying direction of the conveying belt and is in transmission connection with a motor arranged on the portal frame, a cutter groove is formed in the edge supporting plate, the trimming knife is fixedly arranged on the trimming support, and the end of the trimming knife penetrates through the cutter groove. According to the trimming device for leather production, the distance between the two trimming knives can be adjusted, meanwhile, trimming operation can be conducted on the two side ends of leather with different widths, and better applicability is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of leather production equipment, in particular to a trimming device for leather production. Background Art

[0002] Leather production primarily involves three stages: preparation, tanning, and finishing. The finishing stage involves processes such as squeezing, oiling, drying, flattening, trimming, and cleaning. The purpose of trimming is to trim the sides of the leather after forming to facilitate its use after production. Prior art, for example, the utility model patent "Trimming Device for Leather Processing" (Publication No. CN217025983U) discloses a trimming device capable of trimming leather. However, this device cannot simultaneously trim both sides of leather of different widths, failing to meet production requirements and impacting production efficiency.

[0003] In view of the above problems, the present invention makes improvements. Utility Model Content

[0004] The utility model provides a trimming device for leather production, which solves the above-mentioned problems existing in the prior art during use.

[0005] The technical solution of the present utility model is achieved as follows:

[0006] A trimming device for leather production comprises a frame, a conveyor belt and a gantry spanning the conveyor belt are provided on the frame, a plurality of pressing rollers located above the conveying surface of the conveyor belt are rotatably provided on the gantry, two groups of trimming mechanisms are symmetrically provided on the gantry and are located on both sides of the conveyor belt, the trimming mechanism comprises a trimming bracket and a trimming knife, the cross-section of the trimming bracket is a horizontal U-shape so that the trimming bracket has an opening facing the conveyor belt and a supporting plate flush with the conveying surface of the conveyor belt, the trimming bracket can be slidably provided on the gantry in a direction perpendicular to the conveying direction of the conveyor belt and is connected to the motor transmission provided on the gantry, a cutting knife groove is provided on the supporting plate, the trimming knife is fixedly provided on the trimming bracket and the end of the trimming knife passes through the cutting knife groove.

[0007] Preferably, the gantry is fixedly provided with a plurality of sliding support rods distributed above and below the trimming bracket, the trimming bracket is fixedly connected with a plurality of sliding blocks corresponding one-to-one to the sliding support rods and passed through the sliding support rods, the gantry is rotatably provided with a transmission screw connected to the motor transmission, and the trimming bracket is fixedly connected with a transmission seat screwed on the transmission screw.

[0008] Preferably, a plurality of pressing wheels are rotatably provided on the trimming bracket and are located above the supporting plate and on one side of the cutter.

[0009] Preferably, an adjustment frame is provided above the conveyor belt, and a plurality of upright first guide rods are fixedly connected to the adjustment frame, and the first guide rods are passed through the gantry frame. An adjustment screw screwed to the gantry frame is rotatably provided on the adjustment frame, and a plurality of the pressing rollers are rotatably provided on the adjustment frame.

[0010] Preferably, a wheel frame is provided above the support plate, and a number of upright T-shaped second guide rods are fixedly connected to the wheel frame. The second guide rods are passed through the trimming bracket and the second guide rods are provided with a spring located between the wheel frame and the trimming bracket. The number of the pressing wheels are rotatably provided on the wheel frame.

[0011] Preferably, a recovery bucket is fixedly connected to the notch of the cutting groove, and the recovery bucket has a material guide plate which is arranged obliquely and the higher end of which is connected to the supporting plate.

[0012] Preferably, a material blocking plate is fixedly connected to the edge supporting plate and is erected on the side of the cutting knife groove away from the trimming knife along the conveying direction of the conveyor belt.

[0013] To sum up, the beneficial effects of the present invention are that: by providing two sets of trimming mechanisms on both sides of the conveyor belt, the two side ends of the leather conveyed by the conveyor belt can be trimmed simultaneously, thereby improving the efficiency of trimming, and the distance between the two trimming brackets and the two trimming knives can be adjusted by driving the trimming bracket to move by a motor to adapt to the trimming of leather of different widths, thereby improving the applicability of the trimming device. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative labor.

[0015] Figure 1 It is a structural diagram of the utility model;

[0016] Figure 2 This is an exploded schematic diagram of the utility model;

[0017] Figure 3 This is a schematic structural diagram of the gantry and trimming mechanism in the utility model;

[0018] Figure 4 It is a structural schematic diagram of the trimming bracket in the utility model.

[0019] In the figure: 1. Frame; 2. Conveyor belt; 3. Gantry; 31. Motor; 32. Sliding support rod; 33. Transmission screw; 4. Pressing roller; 5. Trimming mechanism; 51. Trimming bracket; 511. Opening; 512. Support plate; 513. Cutting knife groove; 514. Sliding block; 515. Transmission seat; 516. Material blocking plate; 52. Trimming knife; 53. Pressing wheel; 54. Wheel frame; 541. Second guide rod; 55. Spring; 56. Recovery bucket; 561. Guide plate; 6. Adjusting frame; 61. First guide rod; 62. Adjusting screw; 621. Operating handwheel. DETAILED DESCRIPTION

[0020] The following is a combination of the appended examples of the present invention Figure 1-4 , clearly and completely describes the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making any creative efforts shall fall within the scope of protection of the present invention.

[0021] As shown in the figure, a trimming device for leather production includes a frame 1, on which a conveyor belt 2 and a gantry 3 spanning above the conveyor belt 2 are provided. A number of pressing rollers 4 located above the conveying surface of the conveyor belt 2 are rotatably provided on the gantry 3. Two groups of trimming mechanisms 5 located on both sides of the conveyor belt 2 are symmetrically provided on the gantry 3. The trimming mechanisms 5 include a trimming bracket 51 and a trimming knife 52. The cross-section of the trimming bracket 51 is a horizontally placed U-shape, so that the trimming bracket 51 has an opening 511 facing the conveyor belt 2 and a supporting plate 512 flush with the conveying surface of the conveyor belt 2. The trimming bracket 51 can be slidably provided on the gantry 3 in a direction perpendicular to the conveying direction of the conveyor belt 2 and is transmission-connected to the motor 31 provided on the gantry 3. A cutting groove 513 is provided on the supporting plate 512. The trimming knife 52 is fixedly provided on the trimming bracket 51 and the end of the trimming knife 52 passes through the cutting groove 513.

[0022] Specifically, the trimming bracket 51 is slidably arranged on the gantry 3: the gantry 3 is fixedly provided with a plurality of sliding support rods 32 distributed above and below the trimming bracket 51, and the trimming bracket 51 is fixedly connected with a plurality of sliding blocks 514 corresponding one to the sliding support rods 32 and passed through the sliding support rods 32. A transmission screw 33 connected to the motor 31 is rotatably arranged on the gantry 3, and a transmission seat 515 screwed on the transmission screw 33 is fixedly connected to the trimming bracket 51. Through the above structure, the motor 31 drives the transmission screw 33 to rotate, and the transmission screw 33 drives the transmission seat 515 to move by screwing with the transmission seat 515. The transmission seat 515 drives the sliding block 514 to slide on the sliding support rod 32 to realize the sliding of the trimming bracket 51 on the gantry 3.

[0023] In the above embodiment, the leather with trimming is placed on the conveyor belt 2, and the conveyor belt 2 carries the leather backward along the conveying direction, so that the leather enters between the conveying surface of the conveyor belt 2 and the pressing roller 4. The leather is stably kept on the conveyor belt 2 by the action of the pressing roller 4. As the conveyor belt 2 is conveyed backward, while the leather is being conveyed on the conveyor belt 2, the two side ends of the leather that need to be trimmed extend into the trimming bracket 51 through the opening 511 of the trimming bracket 51 and slide on the supporting plate 512. When the side ends of the leather slide past the trimming knife 52, they come into contact with the trimming knife 52, and the trimming knife 52 cuts the side ends of the leather. Cutting is performed to trim the leather, thereby achieving simultaneous trimming of the two side ends of the leather, which improves the efficiency of the trimming operation. In addition, the motor 31 drives the trimming bracket 51 to move and adjusts the position of the trimming bracket 51 relative to the conveyor belt 2. The distance between the two trimming brackets 51, i.e., the two trimming knives 52, can be adjusted so that when leather of different widths is placed on the conveyor belt 2 and conveyed by the conveyor belt 2, both side ends of the leather to be trimmed can extend into the trimming bracket 51 and be built into the support plate 512, so that it is suitable for trimming leather of different widths, thereby improving the applicability of this trimming device.

[0024] Preferably, the trimming bracket 51 is rotatably provided with a plurality of pressing wheels 53 located above the supporting plate 512 and on one side of the cutter. Through the above structure, when the side end of the leather is placed on the supporting plate 512 and slides through the trimming knife 52 and is cut by the trimming knife 52, the pressing wheel 53 presses against the side end of the leather to keep it stably sliding on the supporting plate 512, thereby ensuring the stability of the side end of the leather when passing through the trimming knife 52, and further ensuring the quality of the trimming.

[0025] Furthermore, an adjusting frame 6 is provided above the conveyor belt 2, and a plurality of upright first guide rods 61 are fixedly connected to the adjusting frame 6, and the first guide rods 61 are passed through the gantry 3. An adjusting screw 62 which is screwed to the gantry 3 is rotatably provided on the adjusting frame 6, and an operating handwheel 621 is fixedly connected to the upper end of the adjusting screw 62, and a plurality of the pressing rollers 4 are rotatably provided on the adjusting frame 6.

[0026] A wheel frame 54 is provided above the support plate 512, and a plurality of upright T-shaped second guide rods 541 are fixedly connected to the wheel frame 54. The second guide rods 541 are passed through the trimming bracket 51 and the second guide rods 541 are provided with a spring 55 located between the wheel frame 54 and the trimming bracket 51. The plurality of pressing wheels 53 are rotatably provided on the wheel frame 54.

[0027] In the above preferred embodiment, the first guide rod 61 passed through the gantry 3 enables the adjustment frame 6 to slide longitudinally on the gantry 3, and the adjusting screw 62 is rotated by operating the hand wheel 621. The adjusting screw 62 is threadedly connected with the adjustment frame 6 to drive the adjustment frame 6 to move longitudinally. The adjustment frame 6 drives several pressing rollers 4 to move longitudinally and adjusts the distance between the pressing rollers 4 and the conveying surface of the conveyor belt 2, so as to adapt to the conveying of leathers of different thicknesses and improve the applicability of the trimming device. The second guide rod 541 passed through the trimming bracket 51 enables the wheel frame 54 to slide longitudinally on the trimming bracket 51. Under the action of the spring 55, the wheel frame 54 slides downward and drives the pressing wheel 53 to rest against the support plate 512. When the side end of the leather passes through the trimming knife 52, the side end of the leather slides and is inserted between the pressing wheel 53 and the support plate 512, so as to adapt to the pressing of leathers of different thicknesses and improve the applicability of the trimming device.

[0028] Preferably, a recovery bucket 56 is fixedly connected to the notch of the cutting groove 513, and the recovery bucket 56 has a guide plate 561 which is inclined and connected to the support plate 512 at the higher end. Through the above structure, the waste formed by the side end of the leather being cut by the trimming knife 52 falls onto the guide plate 561 through the cutting groove 513, and falls downward in the recovery bucket 56 along with the guide plate 561, which is convenient for the recovery of the waste.

[0029] Preferably, the support plate 512 is fixedly connected with a material blocking plate 516 which is upright on the side of the cutting groove 513 away from the trimming knife 52 along the conveying direction of the conveyor belt 2. Through the above structure, the material blocking plate 516 blocks the movement of waste materials formed by the trimming knife 52 on the support plate 512, ensuring that the generated waste materials can fall into the recovery bucket 56 through the cutting groove 513.

[0030] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A trimming device for leather production, comprising a frame (1), characterized in that: The frame (1) is provided with a conveyor belt (2) and a gantry (3) spanning above the conveyor belt (2); the gantry (3) is provided with a plurality of pressing rollers (4) located above the conveying surface of the conveyor belt (2) and rotatably provided; the gantry (3) is provided with two groups of trimming mechanisms (5) symmetrically provided on the gantry (3) and located on both sides of the conveyor belt (2); the trimming mechanisms (5) include a trimming bracket (51) and a trimming knife (52); the cross section of the trimming bracket (51) is a horizontal U-shape so that the trimming bracket (51) has a An opening (511) facing the conveyor belt (2) and a supporting plate (512) flush with the conveying surface of the conveyor belt (2), the trimming bracket (51) can be slidably arranged on the gantry (3) in a direction perpendicular to the conveying direction of the conveyor belt (2) and is transmission-connected to a motor (31) arranged on the gantry (3), the supporting plate (512) is provided with a cutting knife groove (513), the trimming knife (52) is fixedly arranged on the trimming bracket (51) and the end of the trimming knife (52) passes through the cutting knife groove (513).

2. The trimming device for leather production according to claim 1, characterized in that: The gantry (3) is fixedly provided with a plurality of sliding support rods (32) distributed above and below the trimming bracket (51); the trimming bracket (51) is fixedly connected with a plurality of sliding blocks (514) corresponding one-to-one to the sliding support rods (32) and passing through the sliding support rods (32); the gantry (3) is rotatably provided with a transmission screw (33) connected to the motor (31); and the trimming bracket (51) is fixedly connected with a transmission seat (515) screwed on the transmission screw (33).

3. The trimming device for leather production according to claim 2, characterized in that: A plurality of edge pressing wheels (53) are rotatably provided on the trimming bracket (51) and are located above the edge supporting plate (512) and on one side of the cutter.

4. The trimming device for leather production according to claim 3, characterized in that: An adjusting frame (6) is provided above the conveyor belt (2), and a plurality of upright first guide rods (61) are fixedly connected to the adjusting frame (6), and the first guide rods (61) are passed through the gantry frame (3). An adjusting screw (62) screwed to the gantry frame (3) is rotatably provided on the adjusting frame (6), and a plurality of the pressing rollers (4) are rotatably provided on the adjusting frame (6).

5. The trimming device for leather production according to claim 4, characterized in that: A wheel frame (54) is provided above the edge support plate (512), and a plurality of upright T-shaped second guide rods (541) are fixedly connected to the wheel frame (54), the second guide rods (541) are passed through the trimming bracket (51), and a spring (55) located between the wheel frame (54) and the trimming bracket (51) is sleeved on the second guide rods (541), and the plurality of edge pressing wheels (53) are rotatably provided on the wheel frame (54).

6. The trimming device for leather production according to claim 5, characterized in that: A recovery bucket (56) is fixedly connected to the notch of the cutting groove (513), and the recovery bucket (56) has a material guide plate (561) that is arranged obliquely and whose higher end is connected to the supporting plate (512).

7. The trimming device for leather production according to claim 6, characterized in that: The edge support plate (512) is fixedly connected to a material blocking plate (516) that stands upright on the cutting knife groove (513) and is away from the trimming knife (52) along the conveying direction of the conveyor belt (2).

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